Fm Narrow; Bar Antenna; Tx Inhibit - Kenwood TH-D74A User Manual

Detect output mode [Detect]
The decoded signal of the band B is output to the PC.
• Change the frequency with [
[ ]
• Change the band with
• Change the modulation/demodulation mode with [MODE].
Note:
◆ When other than [Off(AF)] is selected, the A band is hidden and
the receiving sound output of the A band stops.
◆ When KISS mode is on, [IF] or [Detect] cannot be selected in
the menu.
◆ If the B band is not the operation target, [IF] or [Detect] cannot
be selected in the menu.
◆ When DV mode is selected, [Detect] cannot be selected in the
menu.
◆ Cannot be selected the modulation/demodulation mode in IF 12
kHz output.
◆ The recording function does not work with IF or Detect output
mode. When the mode is switched to either [IF] or [Detect] in
the menu during recording, recording ends.
◆ When the mode is switched to either [IF] or [Detect], the IF or
detection signal is output from the internal speaker.
◆ When the mode is switched to either [IF] or [Detect], beeps and
voice guidance sound are not output.
◆ Special PC software is required to process IF signal or
detection signal. JVC KENWOOD does not provide any support
regarding the procedure to connect to a PC or the PC software.

FM NARROW

The FM mode band can be switched between normal and
narrow.
1 Press [MODE] to set FM mode.
2 Access Menu No. 103.
2 Select [On].
[On]: Switches to narrow FM mode.
[Off]: Switches to normal FM mode.
Note
When FM Narrow is on, the mode always becomes NFM if FM
◆
is selected when switching the demodulation mode.
◆ Set this for each of the 144 MHz band and 430 MHz band and
the HF band of the B band.
◆ If the packet speed) is set to 9600 [bps] while FM Narrow is on,
the mode becomes FM temporarily.
◆ If the setting is changed to 1200 [bps], the mode returns to FM
Narrow
]/[ ] or [ENC] control.
/[ ].

BAR ANTENNA

The transceiver uses a built-in bar antenna when receiving
frequencies from 0.1 to 10.1 MHz. If you wish to connect an
external antenna instead of using the built-in antenna, this
function allows you to disable the built-in antenna.
1 Access Menu No. 104.
2 Select [On] or [Off].
[Off]: Disables the built-in bar antenna.
[On]: Enables the built-in bar antenna.
Note
◆ The bar antenna is directional (has a sensitivity direction).
Sensitivity becomes better in the front-back direction of the
transceiver so orient the transceiver to match the direction from
which the radio waves come.
◆ When receiving with the bar antenna, stable reception may not
be possible depending on the conditions, such as the location,
building structure, window glass, roofing material, season, time,
and ionospheric radio-wave propagation, or fading may occur,
making the received sound difficult to hear.
◆ The bar antenna is a simple antenna for the purpose of
receiving strong signals such as signals from high-power
broadcasting stations or signals that are nearby. When, for
example, receiving a signal from a station that is far away or a
low-power signal, we recommend using a dedicated external
antenna tuned to the frequency of the target signal whenever
possible.

TX INHIBIT

You can inhibit the transmission to prevent unauthorized
individuals from transmitting, or to eliminate accidental
transmissions while carrying the transceiver.
1 Access Menu No. 110
2 Select [On] or [Off].
• [TX Inhibit] appears and an error beep sounds if the
transceiver tries to transmit while TX Inhibit is [On].
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