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TRC-70
Transmitter Adjustment
1. Setting
TX-RX unit
~ 7
|
DO
Q53
80
RE
(|
voltmeter
3
!
—_—_— — —l
i)
(Specification: 0.5 Vrms or more.)
2. Carrier Level Adjustment
3. Return the set to the receive mode.
Note: After adjustment is completed, remove the
coaxial plug (DO) of the TX-RX unit from the RF volt-
meter, then insert the coaxial plug into the coaxial
socket onthe printed circuit board.
. Transmission Output Adjustment
. Set the POWER switch to OFF.
. Change DIP switch S301's No.1 of the control unit
from ON to OFF.
. Check DIP switch $301's No. 3 and No.4 to ON.
. Set the POWER switch to ON.
. Connect a power meter to the ANT terminal.
. Set that the memorizing frequency is 2.100.0 MHz
and that the mode is CW.
"hw
Om ol BW
3-1. High Power Adjustment
1. Place the set in the transmit mode.
3-2. MED Power Adjustment
1. Set the POWER switch to OFF.
2. Change DIP switch $301's No.1 of the control unit
from ON to OFF.
3. Change DIP switch S301's No. 3 to ON and No.4 to
OFF.
. Set the POWER switch to ON.
. Place the set in the transmit mode.
_ Turn VR17 of the TX-RX unit until the power is 60
W. (Specification: 60 + 5 W)
7. After adjustment is completed, return the set to the
receive mode.
on
3-3. Low Power Adjustment
1. Set the POWER switch to OFF.
2. Change DIP switch $301's No.1 of the contro} unit
from ON to OFF.
. Change DIP switch $301's No. 3 and No.4 to OFF.
. Set the POWER switch to ON.
. Place the set in the transmit mode.
_ Turn VR18 of the TX-RX unit until the power is 30
W. (Specification: 30 + 3 W)
7. After adjustment is completed, return the set to the
receive mode.
8. Change DISP switch $301's No. 2 through No.4 to
ON.
oof
W&
4. MIC Sensitivity Adjustment
Frequency
1 kHz
Level
5 mV
and that the mode is USB.
. Place the set in the transmit mode.
(Specification: 50 + 5 W)
6. Return the set to the receive mode.
a &
73
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