What to do if PTT key is pressed but transmission does not occur on Firstcom FR-488?
If the PTT key is pressed on your Firstcom Transceiver, but no transmission occurs, it could be due to a poor microphone or antenna connection. Ensure that both the microphone and antenna are properly connected.
Why no sound comes from speaker of Firstcom Transceiver?
If no sound is coming from the speaker of your Firstcom Transceiver, the squelch might be muted, or tone or CTCSS/DCS squelch may be active. Try decreasing the squelch level, or turn off CTCSS or DCS squelch.
How to unlock key and dial on Firstcom FR-488 Transceiver?
If the keys and dial on your Firstcom Transceiver do not function, the key-lock function might be activated. To resolve this, cancel the key-lock function.
Why rotating dial will not change memory channel on Firstcom FR-488?
If the rotating dial on your Firstcom Transceiver will not change the memory channel, the transceiver may be in CALL mode. Press the VFO or memory mode to resolve this.
How to fix dim display on Firstcom FR-488 Transceiver?
If the display on your Firstcom Transceiver is too dim, please make the dimmer setting "LAMP-H".
What to do if power is on, nothing appears on display of Firstcom Transceiver?
If the power is on but nothing appears on the display of your Firstcom Transceiver, it is possible that the + and - polarities of the power connection are reversed. Connect the red lead to the plus terminal and the black lead to the minus terminal of the DC power supply.
General| Frequency Range | 400-470MHz |
|---|---|
| Number of Channels | 16 |
| RF Output Power | 5W |
| Operating Voltage | 7.4V DC |
| Antenna Impedance | 50Ω |
| Modulation | FM |
| Battery | Li-ion |
Observe precautions to prevent fire, personal injury, or transceiver damage.
Instructions for installing the transceiver inside a vehicle.
Connects the transceiver to the vehicle's 12V DC power supply.
Guidelines for using the transceiver with a separate 13.8V DC power supply.
Instructions for connecting an efficient antenna for optimal performance.
Connecting the transceiver to a PC for programming.
How to set the radio as Amateur or Professional Transceiver mode.
How to turn the transceiver on and off.
Toggling between frequency and memory channel modes.
How to change frequency or channel using the selector knob.
How to transmit using the PTT key and microphone.
Describes the anti-theft alarm function and how it operates.
Steps to install the USB to COM port driver for programming.
Connecting the transceiver and starting the programming software.
Common problems and their solutions for the transceiver.
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