JVC KENWOOD Corporation 31201110 用户手册

47

144 MHz and 430 (440) MHz bands, activating the
attenuator function for the sub-receiver also causes
the function to switch ON for the same band of the
main transceiver.

The pre-amplifier amplifies the level of received
signals.  It is useful when the receiving signal is
weak.  If there is no strong interference from adjacent
frequencies, switch the pre-amplifier ON to raise the
receiving signal level.  Since the main transceiver and
sub-receiver share the same antenna for the
144 MHz and 430 (440) MHz bands, activating the
pre-amplifier function for the sub-receiver also causes
the function to switch ON for the same band of the
main transceiver.

If different frequency bands are set on the main
transceiver and sub-receiver, you can still monitor the
other band activities while transmitting on the TX
band.  It is useful that you can still monitor the local
repeater frequency (VHF or UHF band) while you are
working on a DX station on the HF band of the main
transceiver.

If you have the same frequency band (VHF or UHF
band) for the main transceiver and sub-receiver, you
can monitor both frequencies independently at the
same time.  However, both receivers will temporarily
mute when you transmit, because the transceiver
shares the same 144 MHz and 430 (440) MHz band
antenna between the main transceiver and sub-
receiver.

All types of scanning are also available for the sub-
receiver.  However, the operating frequency range is
limited to the sub-receiver’s frequency coverage.
Refer to “SCAN” {page 66} for details on how to
operate the scan function.

Since the sub-receiver can receive only in FM or AM
mode, DSP noise reduction 1 (Line Enhanced) is
available to reduce the  noise from the receiving
singals.  Refer to “REJECTING INTERFACE” {page
56} for details on how to control and adjust the
function.

First, confirm that the “PTT” icon is on the SUB band
display.  Press [SEND] or press and hold Mic [PTT],
then speak into the microphone in your normal tone
of voice.  When you finish speaking, press [SEND]
again or release Mic [PTT].

You can also adjust the output power for FM mode in
the 144 and 430 (440) MHz bands when you are
operating the sub-receiver.

1 Press [PWR].

•

The current transmit power appears.

2 Turn the MULTI/ CH control counterclockwise to

reduce the power or clockwise to increase the
power.

◆

The selectable range varies depending on the current band and
mode {page 20}.

◆

Output power configuration is also reflected in the main
transceiver.

Access Menu No. 41 and select “L” (low), “M”
(medium), or “H” (high).

Note:   When using the optional MC-90 microphone in FM mode,
select high microphone gain.  Microphone sensitivity is low in FM
mode; this may cause insufficient modulation.  For other
microphones, select “M” (medium) or “L” (low).

You can also configure an independent repeater
offset frequency for the sub-receiver, if necessary.
Refer to “FM REPEATER OPERATION” {page 32} for
details.

Press [TF-SET] to switch the sub-receiver Reverse
function ON (or OFF).  “R” appears while the Reverse
function is active on the sub-receiver.
Refer to “REVERSE FUNCTION” {page 34} for
details.