User Manual

2-4
2.2 OPERATING INSTRUCTIONS (See Figure 2-1)
1. Switch power on by turning the main volume clockwise. Depending how the radio is
configured, either the last programmed or last displayed frequency will appear on the screen.
The transceiver is now in normal operating mode.
2. Adjust the audio level by adjusting the main and guard volume knobs.
3. Pressing the squelch defeat button will open both receivers to confirm they work.
4. Read the display. The top line will indicate the memory selected followed by a "+" if the
memory position is included in a scan list, an alphanumeric message, and the frequency of
the main receiver. A small "n" before the frequency indicates 12.5 kHz narrowband channel
spacing is in effect on this memory position. In the receive mode, the frequency is followed
by an "RT" if a RX CTCSS tone or RX DPL code is programmed, or an "RX" if no Receive
tone/code is programmed. Similarly, in the transmit mode either a "TT" or "TX" is shown after
the frequency. The bottom line indicates similar information about the guard receiver.
5. Only TX CTCSS tones or TX DPL codes may be programmed for the guard receiver.
At the beginning of each line, an LED indicates open squelch.
6. Set the MN/GD switch to main or guard transmit frequency.
7. Set the G1/G2 switch to the desired guard channel.
8. Set the HI/LO switch to the desired RF output power.
9. Select the desired memory by using the M.UP and M.DN buttons, or the RCL button
and a three digit number followed by ENTER.
10. To transmit DTMF tones, use the keyboard keys while holding the PTT button on the
microphone. The keyboard returns to its normal function when the PTT is released.
The display shows the status of both receivers and the transmitter. The light at the left of the top and
bottom line indicates which receiver is receiving. The display also indicates the memory channel
in use and the guard channel in use. A "TX" (no TX tone/codes programmed) or "TT"(either TX tone
or code programmed) on the right side of the display indicates whether the guard or main channel is
active when transmitting. The transmit frequency is also shown. In the receive mode the display
shows “RX” beside the receive frequency if no RX tone or DPL code is programmed and “RT” if a
CTCSS tone or DPL code is programmed.
When the transceiver is in either of the operating frequency or CTCSS tone/DPL code programming
modes and you must respond to a call, click the microphone PTT once (the radio will not transmit
during this click). This will cause the transceiver to revert back to the normal operating mode and
communications with the caller can proceed in the usual fashion.