How to use: when a unit is checked in, find its family below and turn to the card. Each card has
two procedures — one for the transmitter, one for the portable receiver — each set up to dial an
arbitrary assigned frequency, not just a preset. The colored tag says how that family reaches an arbitrary MHz.
FREE-TUNE TO ANY MHzFree-tune to any MHz (user bank / Tune / Frequency field).
PICK FINE GROUP FIRSTYou must select a fine / unlocked group first, then set the freq (Sony, Wisycom).
FREE-TUNE WITHIN BLOCKFree-tune within a fixed hardware block; TX and RX must share the block (Lectro).
CHANNEL CHART ONLYChannels only — pick from the published channel chart; no arbitrary MHz dial (Comtek).
| Family (TX / RX) | Use this card | How to reach any MHz |
|---|
| Sennheiser Evol G3 / G4 (SK/SKM) | Sennheiser evolution G3 / G4 | FREE-TUNE TO ANY MHz |
| Sennheiser EW-DX (SK/SKM-S) | Sennheiser EW-DX | FREE-TUNE TO ANY MHz |
| Sennheiser EM6000 / SK(M) 6000 | Sennheiser Digital 6000 | FREE-TUNE TO ANY MHz |
| Sennheiser 2000 (SK/SKM/SKP 2000) | Sennheiser 2000 Series | FREE-TUNE TO ANY MHz |
| Sennheiser 3000/5000 (SK 5212 / SKM 5200) | Sennheiser 3000 / 5000 Series | FREE-TUNE TO ANY MHz |
| Shure ULXD (ULXD1 / ULXD2) | Shure ULX-D | FREE-TUNE TO ANY MHz |
| Shure SLX-D (SLXD1/2/5) | Shure SLX-D | FREE-TUNE TO ANY MHz |
| Shure Axient AD / ADX | Shure Axient Digital | FREE-TUNE TO ANY MHz |
| Shure UHF-R (UR1/UR2) | Shure UHF-R | FREE-TUNE TO ANY MHz |
| Shure PSM-1000 (P10T / P10R+) | Shure PSM 1000 | FREE-TUNE TO ANY MHz |
| Sony UWP / UWP-D (UTX…) | Sony UWP-D | PICK FINE GROUP FIRST |
| Sony DWX (DWR / DWT) | Sony DWX Digital | PICK FINE GROUP FIRST |
| Wisycom MTP / MCR | Wisycom MTP / MCR | PICK FINE GROUP FIRST |
| Lectrosonics block units (SMV/SMQV…) | Lectrosonics Digital Hybrid | FREE-TUNE WITHIN BLOCK |
| Lectrosonics wideband (LT / LR “3 Block”) | Lectrosonics L-Series wideband | FREE-TUNE WITHIN BLOCK |
| Lectrosonics IFB (IFBT4 → IFBlue) | Lectrosonics IFB (IFBlue) | FREE-TUNE WITHIN BLOCK |
| Lectrosonics Duet (M2T → M2R / M2Ra) | Lectrosonics Duet (M2T / M2Ra) | FREE-TUNE TO ANY MHz |
| Lectro DBSM/DBSMD (D2) | Lectrosonics D Squared (DBSM / DSQD) | FREE-TUNE WITHIN BLOCK |
| Comtek 216 (BST-25/216 → PR-216) | Comtek 216 (BST-25 / PR-216) | CHANNEL CHART ONLY |
| Sound Devices Astral (A20-TX/Mini/HH) | Sound Devices Astral (A20) | FREE-TUNE TO ANY MHz |
| Zaxcom ZMT (ZaxNet) | Zaxcom (ZMT4.5 / URX100) | FREE-TUNE TO ANY MHz |
| Crew’s WWB rejects assigned freqs | Shure Wireless Workbench (WWB 6 & 7) | SOFTWARE — CALC ONLY |
| Teradek video (Bolt / Ranger) | Teradek Bolt / Ranger (wireless video) | LOCK TO ONE CHANNEL |
| 5/6 GHz channel ⇄ MHz lookup | 5 / 6 GHz Channel Chart | REFERENCE CHART |
| DJI / Rode / Hollyland 2.4 GHz mics | 2.4 GHz Auto-Hop Mics | CANNOT BE COORDINATED |
| Generic / unspecified model | — verify the actual hardware at check-in | VERIFY |
Four rules that prevent most check-in failures:
(1) never power up an uncoordinated transmitter with RF on — put it in its RF-off / standby / mute state first (see each card’s red RF OFF FIRST note), set the assigned frequency, then enable RF;
(2) transmitter and receiver must be in the same band / block;
(3) on Sony UWP-D & Wisycom, select the fine / unlocked group before an arbitrary frequency is reachable (Sony DWX also offers direct FREQ INPUT);
(4) on digital systems an IR-sync (RX→TX) copies the frequency onto the other unit — re-sync after band or encryption changes.
FREE-TUNE TO ANY MHz
Step 25 kHz
Range Tune only inside the unit’s band letter (A 516–558, G 566–608, Aw+ 470–558…)
Typical report label:Sennheiser EW G2/G3/G4Sennheiser Evol G3 ASennheiser Evol G3 GSennheiser Evol G4 Aw+
TRANSMITTER
SK / SKM (bodypack / handheld)
- 1Press SET → Advanced → Tune → SET (navigate with UP/DOWN + SET). Unit switches to channel 1 of user bank U1 (U1–U6); TX RF is deactivated while in Tune.
- 2UP/DOWN to dial the assigned MHz (25 kHz steps; hold to scroll). SET to store.
- 3ESC back to home; confirm the MHz on screen.
PORTABLE RECEIVER
EK 100 G3 / G4 (camera receiver)
- 1Press SET → Advanced → Tune → SET (switches to channel 1 of bank U1).
- 2UP/DOWN to the same MHz; SET to store.
- 3Or set the RX here, then SYNC the transmitter to it via IR.
RF OFF FIRSTEntering Tune deactivates the TX RF while you dial (“the RF signal is deactivated”, per manual) — tune before approaching the rig. Where fitted, set the mute switch function to RF Mute (menu: Mute Mode) for a hard mute.
RF POWERG4 300/500: 10 / 30 / 50 mW (Low/Standard/High), Advanced ▸ RF Power. G3 300/500: 10 / 30 mW (Low/Standard) only. 100-series: fixed, max 30 mW.
MATCHING TX & RXBank presets (1–20) only hold fixed compatible channels — use Tune (bank U) to reach an arbitrary freq.
WATCH OUT
- RX and TX must be the same band letter, or they can’t meet on frequency.
- G3 and G4 tune identically. Reports often lump G2 in too — same family drill, but verify menu names on older G2 units at the table.
FREE-TUNE TO ANY MHz
Step fine (MHz + kHz entry; factory presets sit on a 600 kHz grid)
Range US: Q1-9 470.2–550 · R1-9 520–607.8 · V5-7 941.7–959.65 (licensed STL)
Typical report label:Sennheiser EW-DX Q1-9Sennheiser EW-DX R1-9Sennheiser EW-D Q1-6
TRANSMITTER
SK / SKM(-S) (bodypack / handheld)
- 1Press SET to open the menu → Frequency; UP/DOWN sets the MHz range → SET → UP/DOWN sets the kHz → SET to save.
- 2Or sync from the receiver: press CH 1/CH 2 on the EM 2 → SYNC on the receiver → short-press SYNC on the TX (Bluetooth LE — no IR).
- 3Keep that TX press short — holding SYNC > 2 s enters firmware-update mode and cancels the sync.
PORTABLE RECEIVER
EW-DP EK (camera receiver, cross-compatible)
- 1UP/DOWN/SET/ESC → FREQUENCY (or AUTO SCAN / CHANNEL).
- 2Set the assigned MHz; SET to save.
- 3Must be the same frequency-range variant as the TX; EW-DX extras (encryption, LD) drop off on EW-DP.
RF OFF FIRSTNo RF-mute boot combo. SK / SKM-S: set the mute-switch function to RF Mute (TX menu: Mute Button; or RX: Ch → Mute Mode) and slide to mute before power-on. Plain SKM has no mute switch.
RF POWERFixed 10 mW ERP (12 mW in Y1-3) — there is no RF-power menu.
MATCHING TX & RXSync runs over Bluetooth LE from the receiver — receiver values overwrite the TX. Manual TX entry and the Smart Assist app also work.
WATCH OUT
- Enabling AES-256 (System → Link Encryption) requires re-syncing every TX.
- Link Density mode needs a receiver restart; presets shift to a 300 kHz grid.
- TX and RX must share the frequency-range variant (Q1-9 vs R1-9…).
- EW-D (non-DX) TXs have no display at all — set the freq on the EW-D EM (or Smart Assist app) and push with the SYNC buttons (BLE). Fixed 10 mW. Q1-6 = 470.2–526; “S1-7” = 606.2–662 (mostly not US-legal).
FREE-TUNE TO ANY MHz
Step 25 kHz
Range Up to 88–184 MHz tuning, depending on unit
Typical report label:Sennheiser EM6000 A1-4
TRANSMITTER
SK 6000 / SKM 6000
- 1On the TX, press SET to open the menu → Tune.
- 2Set the assigned MHz (25 kHz steps); confirm — saving auto-assigns it to preset U.
- 3Match the transmission mode (e.g. LR) to the receiver, or the link won’t form.
PORTABLE RECEIVER
EK 6042 (2-ch camera receiver, LR)
- 1Press the channel button → CH Settings → Frequency → Tune.
- 2Set the same MHz; confirm.
- 3Then Sync transfers the frequency to the transmitter over IR.
RF OFF FIRSTSK 6212: hold ON/OFF at power-up until the LED lights red → boots in RF MUTE. SK 6000 / SKM 6000 have no RF-mute boot — set the freq on the EM 6000 / EK 6042 and IR-sync before the pack goes live.
RF POWERSet by mode: LR — SK/SKM 6000 25 mW, SK 6212 15 mW (Low 3.5). LD — 3.5 mW (SKM 6000: 1 mW). Mode is set on the EM 6000 and pushed by sync — not a free dial.
MATCHING TX & RXOn the EM 6000, Sync Settings ▸ Frequency Only pushes just the freq. The EK 6042 sync always transfers the frequency (long-press the sync button for IR).
WATCH OUT
- Digital 6000 TX work with EK 6042 in Long-Range (LR) mode — set both to LR.
- EM 6000 is the rack receiver; EK 6042 is the portable equivalent.
FREE-TUNE TO ANY MHz
Step 25 kHz
Range Up to 75 MHz switching bandwidth; tune inside the unit’s band (e.g. Aw, Gw, Bw). 25 kHz steps.
Typical report label:Sennheiser EM 2000SK 2000 / SKM 2000
TRANSMITTER
SK 2000 / SKM 2000 / SKP 2000 (bodypack / handheld / plug-on)
- 1Press SET → Advanced → Tune (SK 2000 = SET + UP/DOWN buttons; only the SKM 2000 has a jog-style multi-function switch). Pick a user bank (U1–U6); fixed banks 1–20 are intermod presets only.
- 2Set the channel and dial the assigned MHz (25 kHz steps); press SET to store.
- 3Easier: set it on the receiver and IR-sync down to the TX (right).
PORTABLE RECEIVER
EK 2000 (camera receiver)
- 1Press SET → Advanced → Tune; select a user bank (U1–U6) and channel.
- 2Set the same assigned MHz (25 kHz); store the setting.
- 3Hold the RX IR window to the TX IR window → Sync (main menu): the freq transfers to the TX automatically.
RF OFF FIRSTRF Mute: hold ON/OFF at switch-on until “RF Mute Off?” shows → UP/DOWN to “RF Mute On?” → SET. Tune/sync, then un-mute the same way.
RF POWER10 / 30 / 50 mW (US: up to 100 mW) — Advanced ▸ RF Power on the TX.
MATCHING TX & RXEM 2000 / EK 2000 → Advanced ▸ Sync transfers the frequency to the transmitter over IR. Or set both by hand to the same bank / channel / MHz.
WATCH OUT
- RX and TX must share the same band / range, or they can’t meet on frequency.
- Fixed banks 1–20 are presets only — use a user bank (U1–U6) to land on an arbitrary coordinated MHz.
- 2000 series sits above ew G3/G4 and below 3000/5000 — same 25 kHz raster.
FREE-TUNE TO ANY MHz
Step 5 kHz — finest on these cards
Range Tune within the unit’s switching bandwidth (EK 3241 ≈ 36 MHz; SK 5212-II up to 184 MHz); stay in the legal range.
Typical report label:Sennheiser EM 3732 / 3732-IISK 5212(-II)SKM 5200(-II)
TRANSMITTER
SK 5212(-II) / SKM 5200(-II) / SKP 3000 (bodypack / handheld / plug-on)
- 1Deactivate the autolock if on. Open the menu → CHAN: pick a VAR-bank channel (FIX-bank presets cannot be changed).
- 2Go to TUNE and set the assigned MHz — tunes in 5 kHz steps; press SET to store (“STORED”).
- 3Set output in POWER, then EXIT. (TUNE / CHAN only take effect once you SET them.)
PORTABLE RECEIVER
EK 3241 (camera receiver)
- 1Use CHAn to pick a channel in bank “U” (variable bank, 20 channels U.01–U.20; bank “F” is 32 factory presets).
- 2Open tunE and set the same MHz by hand (5 kHz steps); press SET (“StorEd”).
- 3No IR sync on this receiver — confirm the MHz matches the TX exactly. (Use an EM 3732 rack if you need IR sync.)
RF OFF FIRSTNo standby-off boot — set the freq in TUNE (and a low POWER level) before the pack is near other rigs; confirm, then raise power / go live.
RF POWERSK 5212-II POWER menu: 50 mW (PWR.HI) / 10 mW (PWR.LO) / 10 mW low-intermod (LoI).
MATCHING TX & RXThe EK 3241 camera receiver has no IR transmitter-sync — match the frequency by hand on both ends (5 kHz). An EM 3732 rack can IR-sync the transmitters if you have one.
WATCH OUT
- FIX-bank presets cannot be changed; use the VAR bank to land on a coordinated MHz.
- EK 3241 has no transmitter IR-sync — match by hand (or sync from an EM 3732 rack).
- TX and RX must share the same range / band.
FREE-TUNE TO ANY MHz
Step 25 kHz (JB band 125 kHz)
Range US: G58 470–514 · H55 514–558 · J52 558–602 + 614–616 · wideband “+” models G57 470–608
Typical report label:Shure SLXD4 G58Shure SLXD4Q+ G57Shure SLXD5
TRANSMITTER
SLXD1 / SLXD2 (bodypack / handheld)
- 1Transmitters have no frequency menu (menu = RF power, offset, locks) — the frequency comes from the receiver.
- 2Tune the receiver (right), align the IR ports, press the receiver’s sync button → the TX takes the freq.
- 3No RF-mute boot exists on SLX-D — power packs up away from the rig, sync, then move in.
PORTABLE RECEIVER
SLXD5 (portable slot/bag receiver)
- 1Press Enter from home → Frequency → Manual Setup (or Channel / Group Scan).
- 2▲▼ arrows to set G / C or the exact MHz (25 kHz); Enter to apply.
- 3Align IR ports with the TX and press Sync.
RF OFF FIRSTNothing to hold at boot — this family has no RF-mute power-on (unlike ULX-D). Set the receiver first, sync at a distance, then approach.
RF POWERTX menu RF Power: 1 / 10 mW (SLXD3 plug-on: 30 mW); or push from the SLXD5 (TX ▸ RF Power, Low 1 / High 10) via IR sync.
MATCHING TX & RXSLXD4 path: push the control knob → Frequency Setup ▸ Manual Frequency Setup → set G / C / MHz → Apply. “+” receivers pair with legacy TXs when RF Band matches (Device Configuration ▸ RF ▸ RF Band).
WATCH OUT
- Legacy SLX-D has no encryption; SLX-D+ adds AES-256.
- G65 and L57 are not US bands — US stock is G58 / H55 / J52 (+ G57 wideband).
- Keep all receivers in one band on the same group.
FREE-TUNE TO ANY MHz
Step 25 kHz
Range Band on the label must match (e.g. G50 = 470–534 MHz)
Typical report label:Shure ULXD4 G50
TRANSMITTER
ULXD1 / ULXD2 (bodypack / handheld)
- 1ULXD1/2 have no frequency menu — the TX menu covers mute mode, mic offset and locks only. The frequency comes from the receiver.
- 2Tune the receiver channel (right), align IR windows, press SYNC → the TX takes the frequency.
- 3Need RF silence meanwhile? Hold exit while powering the TX on until RF MUTED shows.
PORTABLE RECEIVER
ULXD4 (half-rack receiver)
- 1Open the channel’s RADIO screen; push the control wheel to edit.
- 2Rotate to the Frequency field and set the assigned MHz directly; ENTER to save.
- 3Align IR windows, press SYNC → Sync Success copies it to the TX.
RF OFF FIRSTHold exit during TX power-on until RF MUTED displays. Sync the assigned freq from the receiver, then restart the TX to un-mute.
RF POWER1 / 10 / 20 mW — pushed from the receiver as an IR-sync preset (Lo 1 / Nm 10 / Hi 20), not set on the TX.
MATCHING TX & RXIn the RADIO menu you can set Group/Channel or edit the Frequency field for an exact coordinated MHz.
WATCH OUT
- ULX-D has no bodypack/portable receiver — all receivers are rack/half-rack.
- Re-sync after enabling/disabling encryption. Mixed bands are OK if both units can tune the same frequency (Shure “Mixed-Band Operation”).
FREE-TUNE TO ANY MHz
Step 25 kHz
Range US: G57 470–616 (608–614 gap) · K54 606–663 · X55 941–960 — intl: G55/G56 470–636 · K57 606–790 MHz
Typical report label:Shure AD G57Shure AD G57+Shure AD K54Shure AD X55Shure AD K57 (intl)
TRANSMITTER
AD1/ADX1 · AD2/ADX2 (pack/handheld)
- 1On the TX, O → Radio → Freq; O once edits the first 3 digits, twice the last 3; ∧∨ to set the assigned MHz; O to save.
- 2Or IR-sync from the receiver (right). ADX can also be re-tuned remotely via ShowLink / AD610.
PORTABLE RECEIVER
ADX5D (2-ch portable receiver)
- 1From the channel’s home screen press O → Radio.
- 2∧∨ to set the assigned Frequency (MHz) directly (or Group/Channel); O to save.
- 3Power the TX; channel menu → Sync (or hold X → Rx1/Rx2 Sync); align IR windows until the sync LED lights red → Success.
RF OFF FIRSTHold X while powering on → SAFE START menu → set RF: Mute (persists through power cycles). Tune/sync, then un-mute: Radio → Output → On.
RF POWERAD 2 / 10 / 35 mW · ADX 2 / 10 / 40 mW (Radio → Power; some bands 2 / 10 only; 10 mW max above 608 MHz).
MATCHING TX & RXChannels are grouped for intermod safety, but you can type an exact Frequency on either device.
WATCH OUT
- Receiver RF Band must equal the TX band; after changing RF band, re-sync every TX.
- ADX5D is the portable receiver; AD4D/AD4Q are the rack versions.
- G57+ (ADX5D) extends G57 with 614–616 MHz; TX power is capped at 10 mW there.
FREE-TUNE TO ANY MHz
Step 25 kHz — strict grid, no fine offsets
Range US: G1 470–530 · H4 518–578 · J5 578–638 · L3 638–698 — 614+ MHz is post-repack illegal in the US
Typical report label:Shure UR4D H4Shure UHF-R J5
TRANSMITTER
UR1 / UR2 (bodypack / handheld)
- 1Press enter from the main screen → Group (G) / Channel (Ch) or Frequency; ▲▼ in 25 kHz steps; enter to save. (UR2: pull the battery cover off the handle to reach the keys.)
- 2Or IR-sync: open the TX battery cover to expose the IR port; on the receiver select Sync ▸ sync.
- 3A frequency-locked TX silently ignores the synced frequency — unlock first (hold exit + tap ▲ toggles Frequency Lock).
RECEIVER (RACK)
UR4D / UR4S (rack receiver — no portable in-series)
- 1Radio menu: push the control wheel to the Group/Channel or frequency value; turn to change; press the flashing ENTER.
- 2Or Radio ▸ Scan → Chan Scan / Group Scan.
- 3Then IR-sync down to the TX (step 2, left).
RF OFF FIRSTRF Safety Mode: hold the exit key while switching the TX on → LCD flashes; it will not radiate while you set group/channel. Power-cycle to exit.
RF POWERHold exit + tap ▼ on the TX. UR2: 10 / 50 mW; UR1: 10 / 100 mW (G1/H4/J5; L3 = 10/50).
MATCHING TX & RXSync ▸ Setup can also push gain, RF power and locks with the frequency — check what it’s configured to send before syncing someone else’s pack.
WATCH OUT
- Analog FM on a strict 25 kHz grid — a .0125 offset doesn’t exist here.
- Upper J5 and all of L3 (614–698 MHz) are illegal post-repack — check the band label before accepting the unit.
- Tonekey squelch (Radio ▸ Squelch ▸ Tonekey) should stay On.
FREE-TUNE TO ANY MHz
Step 25 kHz
Range Band on the label (e.g. G10 = 470–542 MHz)
Typical report label:Shure PSM-1000 G10
TRANSMITTER
P10T (rack transmitter)
- 1Press ENTER → select the channel (TX1/TX2) → RADIO / Frequency screen.
- 2ENTER to edit; wheel/arrows to set the assigned MHz (or Group/Channel); ENTER to save.
- 3Align the earpack IR window and press SYNC to push the freq to it.
PORTABLE RECEIVER
P10R+ (bodypack receiver, worn)
- 1Open the battery door — the menu buttons live inside. Press ENTER → Group/Channel/Frequency.
- 2Edit the Frequency to the assigned MHz; confirm.
- 3Or scan on the P10R+, then IR-sync up to the P10T.
RF OFF FIRSTUse the P10T’s front-panel RF switch (per channel): RF off → power on → set the frequency → RF on (“Switch RF off and power on”, per guide).
RF POWER10 / 50 / 100 mW selectable (some bands top out at 50 mW).
MATCHING TX & RXHere the transmitter is the rack (P10T) and the receiver is the bodypack (P10R+) — reverse of a mic.
WATCH OUT
- P10T and P10R+ must be the same band.
- Switch RF off before powering up near other systems.
PICK FINE GROUP FIRST
Step 25 kHz raster
Range Band on the label (UC14 470–542, UC25 536–608…)
Typical report label:Sony UWP (UTX-B40 / M40 / P40)
PICK FINE GROUP FIRSTTo reach any coordinated MHz, both units must be in a fine group: the group whose number matches the TV channel (e.g. Group 14 for TV-14) — these step in 25 kHz. The low groups 01–09 are intermod presets with only a few fixed channels and will NOT reach an arbitrary freq.
TRANSMITTER
UTX-B40 / M40 / P40 (TX)
- 1Power OFF, then hold SET while powering on → transmission-stopped mode (RF off).
- 2+/– to GP/CH; hold SET until GROUP flashes → pick the TV-channel-number group (not 01–09); SET.
- 3CHANNEL flashes → +/– to the channel = assigned MHz; SET. Power-cycle to transmit.
PORTABLE RECEIVER
URX-P40 (portable diversity tuner)
- 1+/– to GP/CH; hold SET to edit. Select the same TV-channel-number group, then the channel matching the MHz.
- 2Confirm the MHz on the OLED.
- 3Or run NFC / IR SYNC (RX→TX) to copy the receiver’s freq to the transmitter.
RF OFF FIRSTYou’re already RF-off: GP/CH is set in transmission-stopped mode (hold SET+POWER). Only power-cycle to transmit once the freq is right.
RF POWERMenu RF POWER: HIGH / LOW — UTX-B40/M40 30 / 5 mW; UTX-P40 (US) 40 / 5 mW; E/KR models 10 / 2 mW.
MATCHING TX & RXUse Sony’s UWP-D Frequency List to map an assigned MHz → Group/Channel. Group 00 = coarse 125 kHz steps. Tip: hold NFC SYNC ≥ 4 s = Clear Channel Scan of the selected group.
WATCH OUT
- Stuck on only a few channels = you’re in a preset group (01–09); switch to the TV-channel group.
- GP/CH & BAND change only with transmission stopped.
FREE-TUNE TO ANY MHz
Step 25 kHz (US 375 kHz channel plan)
Range TX block must match the RX (e.g. TV14–17 = 470–494 MHz)
Typical report label:Sony DWR / DWT (“TV1417”, “DWT 15-075”…)
PICK FINE GROUP FIRSTTwo paths: FREQ INPUT (RX1/RX2 menu) dials an exact MHz digit-by-digit (last two digits 00/25/50/75) and offers to push it to the paired TX — or Band → Group → Channel: bands are TV-channel blocks (TV14-25, TV26-38…). Group 00 = free tuning across the unit’s whole band in 125 kHz steps (Sony doesn’t intermod-protect it — fine when coordination owns the plan). Single-TV-channel groups (e.g. Group 21) step 25 kHz within one TV channel; D1–D7 / 01–07 are intermod presets.
TRANSMITTER
DWT-B03R / B01N / P-series (TX)
- 1Power OFF, hold SET and turn on → setting mode (transmission stopped).
- 2+/– to GP/CH; hold SET until GROUP flashes → pick GP 00 for free tuning (any freq on the 125 kHz raster); SET.
- 3CHANNEL flashes → set to the channel = assigned MHz; SET. Power-cycle to transmit. (Assignment on a .025/.075 offset? GP 00 can’t land there — use the TV-channel group instead.)
PORTABLE RECEIVER
DWR-S03D (2-ch slot receiver)
- 1Open the channel menu → Group/Channel; SET to edit. Pick the TV-channel group, then the channel = MHz.
- 2Or FREQ INPUT in the same channel menu: enter the exact assigned MHz digit-by-digit; accept the prompt to push it to the paired TX.
- 3Or press MENU SEL+SET to auto-scan, then Cross Remote pushes the freq to the TX.
RF OFF FIRSTYou’re already RF-off: GP/CH is set in setting mode (hold SET while powering on = transmission stopped). Power-cycle to transmit after the freq is set.
RF POWER2 / 10 / 25 mW selectable (DWT-B03R).
MATCHING TX & RXCross Remote / pairing carries the exact freq from RX to TX (pair: TX hold POWER + –, or RF REMOTE ▸ PAIRING). Use the Sony DWX Frequency List for group mapping.
WATCH OUT
- TX band/block must match the RX or they won’t link.
- A small preset group shows only a few channels — move to the TV-channel group.
PICK FINE GROUP FIRST
Step fine (to 25 kHz)
Range Wideband, varies by model — MCR42-N 470–700 · MTP40S B7 470–663 · MTP60-US 470–608 / 614–663 / 940–960
Typical report label:Wisycom wideband (e.g. 470–700)
PICK FINE GROUP FIRSTFrequencies live in a Group (GR 0–39) / Channel (CH 0–59) grid; you edit the frequency inside the selected slot. Channels can be locked (lock icon = freq not editable; locking/hiding is managed in Wisycom Manager) — pick an unlocked group/channel to free-tune.
TRANSMITTER
MTP40S / MTP60 (bodypack TX)
- 1MTP60: SEL/ON+GAIN/UP opens the MENU → RF ▸ Freq (or short-press CH from the Status screen). Pick an unlocked GR, then CH.
- 2At Freq, SEL to edit, UP/DOWN to set the MHz, SEL to save.
- 3MTP40S: use the scroll selector / CH keys → set GR (unlocked) → CH → Freq.
PORTABLE RECEIVER
MCR42 / MCR54 (portable receiver)
- 1Menu → Edit RX: GR-Ch (MCR54: Edit RX1–RX4) → select an unlocked group + channel.
- 2Or Edit RX: Frequency to set the assigned MHz directly; confirm.
- 3Or IR-sync: enable IRDA on the TX first, then hold the receiver’s sync (arrow-up) button at the TX IR port.
RF OFF FIRSTPower up with transmission disabled — MTP60: hold EXIT/OFF to switch on without RF (or set RF Power = OFF); MTP40S: leave the wireless switch off. LED2 RED = RF off; set the freq, then enable a power level — LED2 GREEN = radiating.
RF POWERMTP60: 10 / L10 / 20 / L20 / 50 / 100 mW (+ OFF). MTP40S: 10 / 20 / 50 / 100 mW. (RF ▸ Power)
MATCHING TX & RXIf the freq won’t change, the active group/channel is locked — switch to an unlocked one (locks are managed in Wisycom Manager).
WATCH OUT
- Enable RF — wireless power switch to I (LED green). Set the correct battery type.
- Keep one open group for field tuning; locks live in Wisycom Manager.
FREE-TUNE WITHIN BLOCK
Step 25 or 100 kHz — selectable on the unit (Channel Spacing setup)
Range Fixed BLOCK on the housing (470, 19, 21, 22…)
Typical report label:Lectro 100 kHz Block 19Block 21Block 22Lectro 25 kHz Block 470
FREE-TUNE WITHIN BLOCKNo menus full of presets — each unit free-tunes within its hardware BLOCK. The only “group” rule: TX and RX must be the same block. Confirm the block (engraved on the housing) before tuning.
TRANSMITTER
SMV / SMQV (and SMa, SSM, HMa plug-on…)
- 1From home, press and HOLD FREQ; while holding, UP/DOWN moves the freq in 100 kHz steps. Release to set.
- 2Press FREQ again to toggle the display between MHz and the 2-digit hex channel.
- 3To set with RF off, boot Standby: with power OFF, briefly press AUDIO+FREQ together — boots showing “rf OFF”.
PORTABLE RECEIVER
SRc / SRc5P (2-ch slot receiver)
- 1Press MENU/SEL to open setup; pick the receiver (1 or 2).
- 2Hold MENU/SEL + UP/DOWN to step the frequency (or use SCAN, then set).
- 3Then trigger IR SYNC to copy the receiver’s freq to the transmitter.
RF OFF FIRSTBoot in STANDBY (RF off): with power OFF, briefly press AUDIO+FREQ together — powers up showing “rf OFF”. Set the freq, then leave Standby to transmit.
RF POWER50 / 100 / 250 mW (941 variants: 50/100). Set from OFF: hold UP, press AUDIO+FREQ together → step to the Pr screen (AUDIO/FREQ) → ▲▼ to pick → AUDIO+FREQ to exit, then power on.
MATCHING TX & RXBlock = the fixed hardware range; it can’t be changed in the field on single-block units. Match TX and RX blocks. (The SRc is itself a 3-block wideband RX — set its STEPSIZE 25/100 to match.)
WATCH OUT
- If TX and RX blocks differ, they will never link.
- Spacing defaults to 100 kHz — set Channel Spacing = 25 kHz (setup menu / LectroRM) to reach .025 / .050 / .075 assignments. Hex is just a display format.
- Blocks run past TV-band UHF — Block 944 (legacy, 944.100–951.900) and current -941 variants (941.525–951.975) = the STL band; same tuning drill.
FREE-TUNE WITHIN BLOCK
Step 100 kHz default — set Step Size = 25 kHz
Range A1 470.100–537.575 · B1 537.600–607.950 (US TX; RX tunes to 614.3) · C1 614.400–691.175 (each unit covers one 3-block range)
Typical report label:Lectrosonics 3 Block A1Lectrosonics 3 Block B1LT / LMb → LR
FREE-TUNE WITHIN BLOCKSame Digital Hybrid family as the block-units card, but each unit free-tunes across three legacy blocks (“3 Block” on reports). The catch is the Step Size setting: front panels default to 100 kHz — set Step Size = 25 kHz on BOTH ends or a .025 / .050 / .075 assignment is unreachable.
TRANSMITTER
LT / LMb / SMWB / SMDWB (wideband bodypacks)
- 1Power on in Standby Mode: short-press the power button, releasing before the countdown reaches 3 — RF stays off (“Standby” in the Main Window) while you tune.
- 2Menu → StepSize: set 25 kHz. Then Frequency: UP/DOWN to the assigned MHz.
- 3Rf On from the Main / Power menu once confirmed — or IR-sync from the LR first, then enable RF.
PORTABLE RECEIVER
LR (camera-mount receiver)
- 1MENU/SEL → set Step Size = 25 kHz, then open Frequency (or run SmartTune to scan for clear air).
- 2Dial the same assigned MHz; confirm on the LCD.
- 3Trigger IR sync at the transmitter (RX → TX) — it carries frequency, step size and compat mode in one go.
RF OFF FIRSTPower the LT / LMb on in Standby Mode (RF off) and do all tuning there; turn Rf On from the Main / Power menu once set. AutoOn in the Power menu controls whether RF comes up at boot.
RF POWERLT: MENU/SEL → TxPower → ▲▼ 50 / 100 mW → MENU/SEL. SMWB/SMDWB, same path: 25 / 50 / 100 mW. LMb: fixed 50 mW — no menu.
MATCHING TX & RXTX and RX ranges must overlap on the assigned MHz (A1 / B1 / C1 spans). Step Size must match on both ends — same rule as the block-units card, wider hardware.
WATCH OUT
- Reports list these as “Lectrosonics 3 Block A1 / B1” — the wideband LT / LR / SMWB family (SMWB/SMDWB tune the same way; “Nu Hybrid” on a report = these in Digital Hybrid compat), not the single-block SMV card.
- Step Size left at 100 kHz silently hides .025 / .050 / .075 assignments — set 25 kHz on both TX and RX.
- Compat mode (Digital Hybrid / 100 / 200 / IFB / Mode 3…) must match the receiver or no audio.
FREE-TUNE WITHIN BLOCK
Step 25 / 100 kHz (VHF 175 kHz)
Range Fixed ~75 MHz range; RX & TX ranges must match (A1 470–537, B1 537–614, C1 614–692; VHF 174–216; “-941” 941.5–952)
Typical report label:Lectro IFBT4IFBT2.0Digital Hybrid TX in IFB mode
FREE-TUNE WITHIN BLOCKIFB is one-way: an IFB transmitter feeds belt-pack receivers. No presets to fight — each unit free-tunes within its range/block. Rule: the receiver’s range must contain the transmitter’s frequency, and both must speak the same compatibility mode — set on the TX (IFBT4: IFB default / 100 / 200 / Mode 3/6; IFBT2.0 adds NU/EU Hybrid). The IFBlue RX has no compat menu.
TRANSMITTER
IFBT4 / IFBT2.0 (or any Lectro DH TX in IFB mode)
- 1IFBT4: set the switch to TUNE (RF off — freq changes only in TUNE). Set COMPAT to match the RX (IFB is the default).
- 2Press MENU to the Frequency window; UP/DOWN to the assigned MHz (MENU+UP/DOWN jumps 16 ch). TUNING = NORMAL for free choice.
- 3Flip to XMIT to go on air. (IFBT2.0: menu-driven colour LCD — pick the channel’s Frequency + mode within its A1/B1/C1 range.)
PORTABLE RECEIVER
IFBlue IFBR1C / IFBR1B (belt-pack)
- 1Press FREQ to show the receiver frequency in MHz.
- 2UP/DOWN to the assigned MHz (25 or 100 kHz steps; VHF 175 kHz). FREQ+UP/DOWN jumps 1 MHz.
- 3Store it to one of the 10 presets; UP/DOWN then scrolls saved freqs on the fly. (IFBR1C tunes the same way in a tinier body.)
RF OFF FIRSTSet the IFBT4 switch to TUNE — RF is off (a blinking “T” shows) and the freq can only be changed here. Flip to XMIT once set.
RF POWERIFBT4: fixed ≈250 mW. IFBT2.0: MENU/SEL → RF ENABLE/LEVEL → SEL per carrier → ▲▼ 10 / 25 / 50 / 100 / 250 mW; leave the setup screen before power-down or it won’t save.
MATCHING TX & RXNo sync. Set the same MHz on TX and RX, keep both in the same compatibility mode, and make sure the RX range covers the TX frequency. A pilot tone keeps the RX muted until it sees a valid signal.
WATCH OUT
- RX and TX must share the tuning range (A1/B1/C1 or VHF) or it can’t tune there.
- Hearing nothing? Check COMPAT mode and the pilot tone — not just the frequency.
- IFBT4 frequency changes only in TUNE, not XMIT.
FREE-TUNE TO ANY MHz
Step 25 kHz
Range A1B1 470.100–607.975 (NA) · B1C1 version 537–691 — the unit’s range must cover the assigned MHz
Typical report label:Lectrosonics M2T A1B1
TRANSMITTER
M2T (half-rack TX — two carriers, two audio ch each)
- 1Menu → RF Tuning → pick the carrier (each of the two carriers tunes separately); UP/DOWN in 25 kHz steps; confirm.
- 2RF Enable/Level: keep the carrier off while tuning; set the power level per carrier.
- 3Or drive the whole rack from Wireless Designer (USB / Ethernet) — freq, names, levels.
PORTABLE RECEIVER
M2Ra (belt-pack stereo receiver)
- 1Open the menu and tune to the assigned MHz (25 kHz steps) — or run SmartTune to scan on-site RF.
- 22-way IR sync: hold the M2Ra to the M2T’s IR port — settings and scan data transfer between units (RX → TX works).
- 3If the rig uses a FlexList, pick the feed by name instead of dialing.
RF OFF FIRSTThe RF Enable/Level menu keeps each carrier OFF until you explicitly enable it — tune first, enable second. Same habit as the SMV standby boot, just menu-driven.
RF POWERMENU/SEL → RF ENABLE/LEVEL → SEL steps carrier/field → ▲▼ to enable and set 10 / 25 / 50 mW per carrier → BACK.
MATCHING TX & RXTransmitter is the rack (M2T), receiver is the belt-pack (M2Ra) — reverse of a mic, like PSM 1000. 2-way IR sync moves settings in either direction.
WATCH OUT
- Not the IFB card: Duet is the digital stereo IEM system. The M2Ra’s IFB / D2 / HDM compat modes let it stand in for an IFB R1a or D-Squared receiver — set the mode to match the TX.
- Two independent carriers per M2T half-rack — confirm which carrier you’re tuning before you dial.
- A1B1 vs B1C1 hardware versions — the assigned MHz must sit inside the unit’s range.
- M2Ra IFB compat mode is mono only.
FREE-TUNE WITHIN BLOCK
Step 25 kHz — always; no Step Size setting to trip on
Range US DBSM(D)-A1B1 470.100–607.950 · DSQD/DSR4 tune 470.1–614.375 (NA locale blocks 608–614)
Typical report label:Lectro DBSM A1B1Lectro DSQD / DSR4
FREE-TUNE WITHIN BLOCKSame block rule as the rest of the Lectro family: the TX’s range variant (A1B1 / B1C1) must contain the assigned MHz. Unlike Digital Hybrid there is no 100 kHz default — everything steps 25 kHz.
TRANSMITTER
DBSM / DBSMD (membrane keypad)
- 1Short-press the power button = Standby (RF off, indicator blinks) — do all tuning here.
- 2TopMenu ▸ Xmit ▸ Freq; MENU/SEL toggles the MHz / kHz fields; ▲▼ steps 1 MHz / 25 kHz.
- 3Enable RF with a long press through the 3-count (or Xmit ▸ Rf On? Yes).
PORTABLE RECEIVER
DSQD (rack) / DSR4 (4-ch slot receiver)
- 1RF Setup ▸ RF Frequency (MENU/SEL + ▲▼); or Smart Tune / Frequency Scan.
- 2IR Sync & Encryption ▸ Sync Settings → SEND FREQ (or SEND ALL) → pick channel 1–4 → GO.
- 3Hold the DBSM’s IR port to the receiver — the TX has no sync menu; it just listens → “SUCCESS”.
RF OFF FIRSTBuilt into the power button: short press = Standby (RF off); releasing a long press before the countdown reaches 3 also boots RF-off. Full 3-count (or Xmit ▸ Rf On?) to radiate.
RF POWERXmit ▸ TxPower: 10 / 25 / 50 mW, or HDM = 2 mW high-density mode.
MATCHING TX & RXCompat modes must match end-to-end (D2 vs HDM; DSQD/DSR4 also decode Duet CH1/CH2 and Hybrid modes). Wireless Designer drives the receiver; the TX is reached only via IR.
WATCH OUT
- Encryption key-type mismatch = RF meters but no audio.
- Never set DSQD/DSR4 channels 1+3 or 2+4 to the same frequency.
- HDM = 2 mW only — range-check the walk before committing.
- Exit the DSQD setup screen before powering down or settings aren’t saved.
- DCHT camera-hop TX is family: wideband 470.1–607.950, 25 kHz, Xmit ▸ Freq; pairs with DCHR (native DCHX mode) or DSQD (fw ≥ 1.04); 10 / 25 / 50 mW.
CHANNEL CHART ONLY
Step channel chart — 57 channels
Range 216–217 MHz (FCC Parts 22/74/90) — 38 narrow + 19 hi-fi companded channels
Typical report label:Comtek BST-216 Narrow 23
CHANNEL CHART ONLYNo MHz dial at all — coordination assigns a channel from Comtek’s published chart (e.g. “Narrow 23” = 216.5625). Narrow (non-companded) and hi-fi (companded) are separate channel sets; the TX auto-sets deviation / EQ per channel, and the RX must be on the same channel type.
TRANSMITTER
BST-25/216 (base-station transmitter)
- 1Select the assigned channel with the front-panel controls — the LED window shows the channel and exact frequency.
- 2Confirm the channel type (narrow vs hi-fi companded) matches the assignment; deviation/companding follows the channel — but Speech EQ is a manual rear-panel switch.
- 3Switch the DISPLAY off once set — with the display disabled the tuning controls are locked, so the freq can’t walk.
PORTABLE RECEIVER
PR-216 (belt-pack receiver)
- 1Select the same channel number on the PR-216 via the two rear rotary switches (tens/ones) — it tunes both channel sets.
- 2Use the BST’s 400 Hz TONE switch to confirm the link and set listen level, then kill the tone.
- 3Channel stays put once set — no sync, nothing else to match.
RF OFF FIRSTNo RF-off standby — the BST radiates once powered. Set the channel before powering near the rig (or before the antenna goes on), then use the display-off lockout to freeze tuning.
RF POWERBST-25: fixed, set for 100 mW (FCC Parts 22/74/90). BST 75-216 = compact 10-channel “Mini Base Station” with selectable power; M-216 is the belt-pack TX.
MATCHING TX & RXNo sync — match the channel number on TX and RX from the chart. Running 2+ channels on one site needs intermod-checked channel groups (Comtek’s chart / frequency software).
WATCH OUT
- VHF 216–217 — completely outside UHF TV coordination; it appears on reports as a channel number, not a free MHz.
- Narrow vs hi-fi companded are different channel sets — a mismatch passes RF but sounds wrong.
- Display disabled = tuning locked (the rear LOCK OUT switch does the same). Re-enable to change channels.
FREE-TUNE TO ANY MHz
Step 25 kHz (off the sub-channel grid is OK)
Range SpectraBand 470–1525 MHz (A20-TX & A20-RX reach down to 169; HH/Mini start at 470) — region/license-gated
Typical report label:Astral TX (A20-TX)Astral Mini (A20-Mini)Astral HH (A20-HH)
TRANSMITTER
Astral TX / HH (display) · Mini (app)
- 1Astral TX / HH: open the menu → Frequency. (There is no Country menu on the unit — region limits are set automatically via the A20-Remote app or an Astral receiver.)
- 2Dial the assigned MHz and confirm; turn RF on.
- 3Astral Mini (no screen): set frequency from the A20-Remote app, or push it from the receiver / Nexus over NexLink.
PORTABLE RECEIVER
A20-RX / ARX2 (2-ch portable receiver)
- 1Press ◀ or ▶ to select a channel (single-channel view); press the centre ENTER to open its menu.
- 2Go to Frequency → ENTER; ◀/▶ to set the assigned MHz; ENTER to confirm. (An * just means it’s off the preset sub-channel grid — fine.)
- 3Set the transmitter to the same MHz (on-unit, app, or NexLink). Tip: AutoAssign scans a chosen band and fills both channels.
RF OFF FIRSTUse the menu RF Off toggle (or set RF Power = Off on the Mini) so it’s powered but not radiating; set the freq; then RF On.
RF POWERA20-TX/Mini 2 / 10 / 20 / 40 mW (40 needs the Extra RF Power enable); HH adds 40 “Very High” / 100 mW “Extra High”, both behind the same enable. Set on the unit, A20-Remote, or the receiver. Tip: raise Long-Range modulation before power.
MATCHING TX & RXNo IR sync. TX and RX must share the same frequency + modulation; match by hand, via A20-Remote, or push over NexLink (the screenless Mini must be set this way).
WATCH OUT
- Available freqs are country-gated (set via A20-Remote / receiver, plus any FA license code); restricted bands stay locked.
- GainForward: no gain on the transmitter — gain is set at the receiver / mixer.
- Digital & intermod-immune, but keep A20 units ≥ 400 kHz apart.
FREE-TUNE TO ANY MHz
Step 100 kHz (0.1 MHz per INC/DEC press)
Range ZMT4.5 512–608 (Blocks 20–23) · ZMT4.6 578–698 · VTX1 VHF 192–217 (FM 215–216.975 = Comtek-compatible)
Typical report label:Zaxcom ZMT4.5 (ZHD48)Zaxcom VTX VHFZaxcom TRXCL5
TRANSMITTER
ZMT4.5 (micro bodypack TX)
- 1From Home press MENU to “UHF Transmit Frequency Set” (TXFREQ).
- 2INC/DEC: short press = 0.1 MHz, hold = 0.5 MHz jumps. Direct dial — no groups, no banks.
- 3Keys locked? Hold MENU + press INC ×5 to unlock.
PORTABLE RECEIVER
URX100 (portable confidence RX; bags run Nova/MRX214)
- 1MENU to “Frequency Select”; CH UP/CH DOWN tune in 0.1 MHz.
- 2Or Frequency Scan → accept the suggested clear freq with CH UP.
- 3Modulation must match the TX — URX100 decodes ZHD96 / XR / MONO but not ZHD48 (ZHD48 needs a current MRX214).
RF OFF FIRSTSetup ▸ “Standby Mode After Boot Up”: STANDBY (wakes on MENU press) or REMOTE STANDBY (boots RF-silent, waits for a ZaxNet WAKE from Nova2 / VTX1). Transmit ▸ Record-Only Mode kills UHF entirely.
RF POWERZMT4.5 TX POWER: 10 / 50 mW. VTX1: 10 / 25 / 50 mW.
MATCHING TX & RXNo IR. Frequencies can be pushed over ZaxNet 2.4 GHz (Group Code 1–99 + Unit Code 1–200 address each pack; controller = Nova2 “TRX Frequency” or VTX1 remote menu).
WATCH OUT
- Modulation mode (ZHD48 / ZHD96 / XR) must match TX↔RX — changing it forces a reboot.
- ZHD48 occupies ~50 kHz and can sit 100 kHz apart — expect tighter packing than analog on the report.
- ZaxNet (2.403–2.475 GHz) is a real on-site emitter — coordinate it too.
- TRXCL5 camera link tunes the same way (INC/DEC, 100 kHz): US 512–607.9 up to 100 mW (+ 614.1–615.9 / 653.1–662.9 at 20 mW); power 25 / 50 / 100 mW.
SOFTWARE — CALC ONLY
Step profiles: Robust · Standard · More Frequencies
Range applies only to the WWB calculator on your laptop — it changes nothing on any transmitter
Typical report label:“WWB rejects our assigned freqs”Compatibility profile
SOFTWARE — CALC ONLYCoordination hands you exact frequencies; WWB flags them (intermod / “3TO” warnings). WWB isn’t overruling the event plan — it’s re-running its own intermod math with conservative margins that the site-wide coordination already handled. Relax the compatibility profile so WWB accepts what you were given — do not calculate new frequencies.
WWB 6
WWB 6
- 1Frequency Coordination tab → click the device-type group header (its text shows the active profile).
- 2Right sidebar → Compatibility tab → Compatibility Profile drop-down → More Frequencies (try Standard first if you only need a little slack).
- 3Keep the assigned freqs; Calculate — the warnings should clear. (Spacing numbers live in Tools ▸ Equipment Profiles.)
WWB 7
WWB 7
- 1Frequency coordination workspace → click the device header (dark grey bar); Ctrl-click to select several.
- 2Compatibility tab → profile drop-down → More frequencies (or Standard). Fine sliders: Channel / Intermod spacing (2- & 3-TX); Revert undoes, Save keeps a modified profile (*).
- 3Calculate. Global default: Preferences ▸ Coordination ▸ Compatibility → double-click the model’s Coordination Preference.
DON’T RECALCType the coordinator’s frequencies exactly (double-click the Inventory Frequency column). Relaxing the profile only makes WWB accept them — don’t generate new frequencies without asking coordination.
TRADE-OFFMore Frequencies = tighter spacings: less margin against intermod products and short TX-to-RX distances. Fine when the site-wide coordination owns the plan; not a free win when you’re self-coordinating in isolation.
WATCH OUT
- “3TO”-style warnings are WWB’s own 2- and 3-transmitter third-order intermod spacing rules — a margin policy, not a verdict on the event plan.
- Set the profile per device type — relax only the types you were handed frequencies for.
- If WWB still refuses one specific assigned frequency, don’t nudge it to a nearby number — call coordination; the digits are load-bearing.
LOCK TO ONE CHANNEL
Step 20 MHz per link (factory default is 40 MHz — twice the footprint)
Range 5 GHz U-NII-1/2/3 · 6 GHz U-NII-5 5.925–6.425 (Bolt 6 · Bolt 4K LT-HDMI · Ranger Mk II/Micro)
Typical report label:Teradek Bolt 6 (6 GHz)Teradek Bolt 4K (5 GHz)Teradek Ranger
LOCK TO ONE CHANNELOut of the box a Bolt auto-hops across the whole band at 40 MHz. On a coordinated site it must sit still: Fixed Frequency on, one assigned channel, 20 MHz — set identically on both TX and RX (“ensure that both the transmitter and receiver have Fixed Frequency Mode enabled”).
LOCK THE FREQUENCY
Same steps on TX and RX
- 1Menu → Wireless Settings → Enable Fixed Frequency — on both TX and RX (“bypasses any automatic frequency switching logic”).
- 2Then Wireless Settings ▸ Frequencies: select only the assigned channel. If you skip this, Bolt silently defaults to the lowest frequency in the list.
- 3Fixed mode offers non-DFS channels only — if your assignment is a DFS channel, the unit cannot lock there; call coordination.
LOCK 20 MHz + BAND
Same steps on TX and RX
- 1Menu → Wireless Settings → Bandwidth → 20MHz (default 40) — both ends must match. 20 MHz carries up to 1080p60; 4K59/60 needs 40 MHz.
- 26 GHz-capable units: Wireless Settings ▸ Band → 5GHz or 6GHz per the assignment — both ends; hopping never spans bands.
- 3Sanity-check with the Spectrum Analyzer (RX front panel / Bolt app). Changed the Region setting? Re-pair TX and RX.
NO DFS LOCKFixed Frequency = non-DFS only. DFS ranges (5.25–5.35 / 5.47–5.725 GHz) need a 1-minute radar scan and can be forced to vacate — don’t assign video links there.
FOOTPRINT6 GHz (U-NII-5) runs at lower allowed power than 5 GHz but has no DFS. At 20 MHz a Bolt 6 offers 36 channel choices vs 24 at 40 MHz.
MATCHING TX & RXRanger is the special case: spans 4.9–6.0 GHz including licensed channels — enable Allow Licensed Channels + Fixed Frequency to pick one (licensed operations only).
WATCH OUT
- Serv / Prism / Cube are IP encoders on ordinary Wi-Fi — nothing to lock on the unit; coordinate the network instead.
- Frequency, bandwidth, and band must match on both ends or the link won’t form.
- See the companion 5/6 GHz channel chart card for channel ⇄ MHz mapping.
REFERENCE CHART
Center MHz = 5000 + 5×ch (5 GHz) · 5950 + 5×ch (6 GHz)
40 MHz = two adjacent 20 MHz slots
Use with:Teradek Bolt / Ranger cardVenue Wi-Fi / IP video coordination
| 5 GHz band | Span (MHz) | 20 MHz channels (center MHz) | Rules |
|---|
| U-NII-1 | 5150–5250 | 36 (5180) · 40 (5200) · 44 (5220) · 48 (5240) | No DFS — lockable |
| U-NII-2A | 5250–5350 | 52 (5260) · 56 (5280) · 60 (5300) · 64 (5320) | DFS — radar scan, can be evicted |
| U-NII-2C | 5470–5725 | 100 (5500) · 104 · 108 · 112 · 116 · 120 · 124 · 128 · 132 · 136 · 140 · 144 (5720) | DFS — radar scan, can be evicted |
| U-NII-3 | 5725–5850 | 149 (5745) · 153 (5765) · 157 (5785) · 161 (5805) · 165 (5825) | No DFS — lockable, but shared with venue Wi-Fi |
| 6 GHz band | Span (MHz) | 20 MHz channels (center MHz) | Rules |
|---|
| U-NII-5 | 5925–6425 | 1 (5955) · 5 (5975) · 9 (5995) … step +4 ch / +20 MHz … 93 (6415) | No DFS; lower power (LPI); only band Teradek uses |
| U-NII-6 | 6425–6525 | 97 (6435) – 113 (6515) | Wi-Fi 6E/7 only — no Teradek products here; venue APs may be |
| U-NII-7 | 6525–6875 | 117 (6535) – 185 (6875) |
| U-NII-8 | 6875–7125 | 189 (6895) – 233 (7115) |
6 GHz CAPABLETeradek units that can take a 6 GHz assignment: Bolt 6 XT (750 / 1500 / MAX / 10K RX) · Bolt 6 LT (750 / 1500 / MAX) · Bolt 6 LT-HDMI · Bolt 6 Monitor Module · Bolt 4K LT-HDMI (firmware ≥ 4.3.0 — the only Bolt 4K that can) · Ranger Mk II · Ranger Micro. Everything else Teradek is 5 GHz only.
WATCH OUT
- Teradek fixed-frequency locks only exist in the green rows (U-NII-1, U-NII-3, U-NII-5).
- A 40 MHz link eats two adjacent 20 MHz slots — count both when charting.
- Venue Wi-Fi lives in these same bands; 6 GHz (U-NII-5) is usually the cleanest room on site.
CANNOT BE COORDINATED
Step none — the radio picks its own hops, continuously
Range 2.400–2.4835 GHz ISM (DJI Mic 3 can also use 5.1–5.8 GHz)
Typical report label:DJI Mic / Mic 2 / Mic MiniRode Wireless GO II / PRO / MEHollyland Lark M2 / Max
CANNOT BE COORDINATEDThese mics hop across the whole 2.4 GHz ISM band automatically (DJI: GFSK; Rode: “Series IV” digital; Hollyland: adaptive frequency hopping). No menu, sync, or app setting pins them to a frequency — on a coordination report they can only appear as a wideband 2.4 GHz occupant, never as an assigned channel.
WHAT THEY ARE
All 2.4 GHz ISM, all auto-hop
- 1DJI Mic / Mic 2 / Mic Mini: 2.400–2.4835 GHz, GFSK, < 20 dBm EIRP (Mic 3 adds 5.1–5.8 GHz).
- 2Rode Wireless GO II / PRO / ME: “Series IV” 2.4 GHz digital, 128-bit encryption, auto-pairing.
- 3Hollyland Lark M2 / Max: 2.4 GHz adaptive frequency hopping, < 20 dBm EIRP.
WHAT TO TELL THE CREW
Kindly, at the check-in table
- 1These can’t take an assigned frequency — that’s the design, not a setting you’re missing.
- 2They share 2.4 GHz with venue Wi-Fi, Bluetooth, ZaxNet, and comms — count them on the walk anyway; every one raises the noise floor.
- 3Power off units that aren’t actively shooting; if reliability matters, hand them a coordinated UHF pack instead.
SATURATIONSaturation is the endgame: each link needs clean hop-space. Cluster enough of them (plus Wi-Fi, Bluetooth, ZaxNet) in one small area and the band fills — all of them start dropping at once, and no settings menu can fix physics.
RF POWERFixed by regulation, not by menu: ISM-band devices run < 20 dBm EIRP and must tolerate each other’s interference (FCC Part 15). Range claims (100–400 m LOS) assume a quiet band — an event floor is not one.
WATCH OUT
- Nothing on this card is field-tunable — if a crew insists their unit “has a channel setting,” it’s a pairing menu, not a frequency menu.
- DJI Mic 3 in 5 GHz mode lands in the same U-NII bands as Teradek video — see the 5/6 GHz chart card.
- These are fine tools in isolation; the problem is density.
Suggest a change
