Fixed-Station Use; Operation; Receiving; Transmitting - Kenwood TR-7400A Operating Manual

3. Connecting the Power Supply
Connect the supplied power cable securely from your trans-
ceiver to the battery/power supply posts. Make certain
that the red lead is placed to the positive (+) post and the
black lead to the negative (—) post. If necessary, attach
the power cable to the vehicle body at the appropriate
points to avoid dangling.
NOTES
1. The power cable should be as short as possible.
2. An alternative way of obtaining power is to plug the
cigar lighter arranged in most vehicles. Such a plug,
shown in Fig. 6, is available at auto accessory shops
or electronics parts stores.
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SECTION 4. OPERATION
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4.1 RECEIVING
1. Connect the supplied power cable to the DC power
connector (Ë and the antenna cable to the ANT con-
nector 00. Select a DC power supply or battery pack
having 8 to 10A current capacity at 13.8V.
CAUTION
Make certain that connection of the positive (+) and
negative (—) power cable leads have been connected
properly.
2. Depress the POWER ON Switch(1) The digital fre-
quency Display (8) will indicate the frequency and the
meter(5)will be illuminated.
3. Set the TONE Selector Switch(@)to OFF.
"4. Turn the SOU Control@)fully counterclockwise.
5. Turn the VOL Control clockwise until the noise
comes up to a comfortable level.
6. Set the MHz, 100 kHz and 10 kHz Selector Switches
12, 3, and 5 kHz Offset Switch (3) to the receive
frequency. If an incoming signal is received, the Meter
(S) will indicate the signal strength.
7. To eliminate the noise heard with no input signal, grad-
ually turn the SOU Control (9) clockwise until the
noise threshold is reached.
3.2 FIXED-STATION USE
If you operate the TR-7400A as a fixed station, attach the
supplied Stand-off bracket (25) to it as illustrated in Fig. 6.
The TR-7400A is designed so as to be used with a DC
power supply having a current capacity of around 10A at
the rated operating voltage of 13.8V.
Fig. 6 Use of Stand-off Bracket
NOTE
Your transceiver is normal even if the Unlock Indicator (6)
located on the center of the front panel lights momentarily
after selecting a frequency. For more detailed information,
refer to Section 4.6, the "DESCRIPTION OF UNLOCK
INDICATOR", page 12.
4.2 TRANSMITTING
1. Plug the supplied microphone cable plug into the MIC
Connector OD.
2. Set the TONE Selector Switch@)to OFF.
Set the TX OFFSET Switch (7) to SIMP.
4. Set the MHz, 100 kHz and 10 kHz Selector Switches
(42, (9, (9 and 5 kHz Offset Switch (15) to a desired
channel.
5. Depress the microphone push-to-talk switch to operate
the TR-7400A in the transmit mode.
The ON AIR Indicator (@) will light and the meter (5)
pointer will deflect to indicate the RF output power.
6. The best separation between your mouth and micro-
phone is 5 to 10 cm.
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