6
1) To listen to the received signal of the HF
transceiver from the CMD speaker, push the RX
ON key (key 2).
2) To silence the received signal from the CMD
speaker, push the RX OFF key (key 5).
Note: If no function is performed for 20 minutes after pushing the RX
ON key, the RX OFF function will activate automatically.
Reception volume is controlled with the AF volume
control on the CMD. The AF volume control on the
HF transceiver should be set at 9:00 to 10:00 (see
below).
nAF Volume Control Set Up on the HF Transceiver
The AF volume control of the HF transceiver
controls the modulation input on the 144 MHz
band of the TRP. Thus, the HF transceiver AF
control should be adjusted so that the sound from
the CMD does not distort when a strong signal is
received.
If reception from the HF transceiver cannot be
heard:
•Is the HF transceiver squelch closed?
•Are headphones inserted into the HF
transceiver’s headphone jack?
TRANSMISSION OPERATION
Transmission operation is described in the SSB
mode.
1) Pushing the CMD PTT button places the HF
transceiver in transmission mode. Speaking into
the microphone at this time also modulates the HF
transceiver.
Note:
uThere is a small time delay between the time the PTT button is
pushed, and the time the HF transceiver transmits. In order to
prevent the beginning part of your dialogue from being cut off,
please wait for a moment before speaking.
uThe operation of this system does not allow transmission to
operate with VOX.
2) Releasing the CMD PTT button places the HF
transceiver into standby. Setting the modulation
level of the TRP AF volume control to the center,
and the MIC GAIN to 50 (TS-570D(G)/S(G))
typically yields a suitable level. To obtain an
appropriate ALC level with the HF transceiver MIC
GAIN, keep the controls at or near these
suggested settings.
Potential Problems to be Aware Of :
1) Turning the HF transceiver speech processor ON
occasionally causes RF feedback.
2) Using a linear amplifier with the HF transceiver
may occasionally cause RF feedback.
SELECTION
nVFO Operation
•By pressing the VFO A key (A key), you can
select VFO A on the HF transceiver.
•By pressing the VFO B key (B key), you can
select VFO B on the HF transceiver.
•By pressing the UP key (# key) or the DOWN
key (* key) while in either VFO A or VFO B,
the frequency can be increased or decreased
by one step (10 Hz in SSB). Each time the key
is pressed, the frequency will change by one
step.
•By pressing the FREQUENCY ENTER key
(VFO key), the frequency can be entered
directly.
When the above display appears on your screen,
the desired operation frequency of the HF
transceiver can be input, using the 10-key DTMF
pad. Any non-input digit is processed as a 0.
After the correct frequency is input, press the
FREQUENCY ENTER (VFO) key again, to
transmit the input frequency to the HF transceiver.
To cancel the frequency input, press the F key,
MENU key, DUAL key, or MR key.

nMemory Channel Operation

•By pressing the MR key (C key), the HF
transceiver is selected.
•By pressing the UP or DOWN key after having
pressed the MR key, you can increase or
decrease the memory channel by one. Each
time the key is pressed, the channel will
change by one step.
•By pressing the M. CH ENTER key (MR key),
the channel can be entered directly.
When the above display appears on your screen,
the desired channel of the HF transceiver can be
input, using the 10-key DTMF pad. Any non-input
digit is processed as a 0. After the correct
channel is input, press the M. CH ENTER (MR)
key again, to transmit the input channel to the HF
transceiver. To cancel the channel input, press
the F key, MENU key, DUAL key, or VFO key.