Why can't I transmit when pressing PTT on my Kenwood Transceiver?
There could be several reasons why you cannot transmit. It could be that you've selected a frequency outside the allowable range, or a transmit offset that places the transmit frequency outside the limit. Alternatively, TX inhibit might be ON; access Menu No. 14 (TXI) and select “OFF”. Finally, the battery pack voltage might be too low; change or replace the battery.
Why don't most keys and the selector work on my Kenwood TH-255A?
If most keys and the selector do not function, the Transceiver Lock function may be ON (the “ ” icon is visible). Press [F], [MUNU] to turn OFF Transceiver Lock. Also, try pressing [PTT] + [MR] + Power ON to exit Channel Display Mode.
Why does my Kenwood Transceiver keep switching off?
If the transceiver switches OFF for no apparent reason, the Automatic Power OFF (APO) function is likely ON. Access Menu No. 8 (APO) and select your desired time length or “OFF”.
What to do if nothing appears on the Kenwood TH-255A display?
If nothing appears on the display or the display is blinking, the battery pack is likely discharged. Recharge the battery pack or replace the batteries.
Why can't I select the desired frequency on my Kenwood TH-255A Transceiver?
If you cannot select the exact desired frequency, the current frequency step size may not allow it. Select an appropriate frequency step size by pressing [F], [3] to change the frequency step size. Also, the programmable VFO frequency range might be too narrow; expand the frequency range in Menu No. 1 (P.VFO).
Why does my Kenwood TH-255A return to Reception Mode during a long transmission?
If the transceiver returns to Reception Mode during a long transmission, the transmission time exceeded the programmed TOT time. Access Menu No. 12 (TOT) to select your desired transmission length. Note that the TOT cannot be turned OFF, as it protects the transceiver from thermal damage.
How to fix DTMF tone not transmitting on Kenwood TH-255A?
If the DTMF tone cannot be transmitted, DTMF Lock may be ON. Access Menu No. 23 (DT.L) and select “OFF”.
Why doesn't the scan function resume on my Kenwood TH-255A?
If the Scan function does not resume scanning after the transceiver detects a signal, you may have selected “SE” (SEEK) for Menu No. 3 (SCAN). Select either “TO” (Time-Operated) or “CO” (Carrier-Operated) for Menu No. 3 (SCAN).
Lists safety and handling precautions for the transceiver to prevent damage or injury.
Identifies and explains the function of each key and control on the transceiver.
Instructions for turning the transceiver's power on and off.
Methods for choosing operating frequencies using VFO or MHz tuning modes.
Steps for initiating a transmission, speaking into the microphone, and releasing.
Explains how to enter and navigate the transceiver's menu system.
Details various functions and parameters configurable through the menu system.
Configures the transceiver for 50 or 100 memory channels, affecting name storage.
Instructions for saving simplex or standard repeater frequencies and related data.
How to retrieve stored frequencies and data from memory channels using the selector or keypad.
Scans within specified frequency ranges stored in memory channel pairs.
Scans through all frequencies stored in the transceiver's memory channels.
Checks activities on a priority channel every few seconds while monitoring other frequencies.
Filters calls by matching subaudible tone frequencies to hear only specific group members.
Filters calls using digital codes, similar to CTCSS, with a wider selection of codes.
Sending DTMF tones by pressing keys on the transceiver's keypad.
Automatically turns off the transceiver after a set period of inactivity.
Extends battery life by reducing receiver power consumption during idle periods.
Disables most keys to prevent accidental operation or changes to settings.
Sets limits for the VFO frequency range to restrict tuning to specific bands.
Activates an audible siren from the transceiver's speaker at various volume levels.
Requires a password entry upon power-on to prevent unauthorized operation.
Resets transceiver parameters to factory defaults, potentially including memory data.
Technical details of the transceiver's transmission capabilities, including output power and modulation.
Technical details of the transceiver's reception capabilities, including sensitivity and selectivity.
General| Frequency Range | 144-148 MHz |
|---|---|
| Modulation | FM |
| Power Output | 5 W (High), 0.5 W (Low) |
| Dimensions | 54(W) x 143(H) x 32(D) mm |
| Weight | 0.9 kg |
| Supply voltage | 13.8 V DC |
| Receiver Sensitivity | 0.16 µV for 12 dB SINAD |
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