TK-3301
21
■
ANT cable (E30-3418-05)
Modify the cable as shown below.
Cut
Solder the ANT cable to the ANT terminal on the TX-RX
unit.
ANT cable
GND
When the TEST cable is applied,
solder is deleted.
Attention: After repairs or
adjustments are completed,
please do not forget to solder.
ANT
TX-RX unit
Frequency and Signaling
The transceiver has been adjusted for the frequencies
shown in the following table. When required, re-adjust them
following the adjustment procedure to obtain the frequen-
cies you want in actual operation.
■
Frequency (MHz)
Channel No.
RX Frequency
TX Frequency
1
446.00625
446.00625
2
446.01875
446.01875
3
446.03125
446.03125
4
446.04375
446.04375
5
446.05625
446.05625
6
446.06875
446.06875
7
446.08125
446.08125
8
446.09375
446.09375
ADJUSTMENT
■
Signaling
Signaling No.
RX
TX
1
None
None
2
None
100Hz Square Wave
3
QT 67.0Hz
QT 67.0Hz
4
QT 151.4Hz
QT 151.4Hz
5
QT 250.3Hz
QT 250.3Hz
6
DQT D023N
DQT D023N
7
DQT D754I
DQT D754I
Preparations for Tuning the Transceiver
Before attempting to tune the transceiver, connect the
unit to a suitable power supply.
Whenever the transmitter is tuned, the unit must be con-
nected to a suitable dummy load (i.e. power meter).
The speaker output connector must be terminated with a
8
Ω
dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
■
List of FPU for transceiver
Model
Type
FPU
TK-3301
E,T
KPG-121D
Adjustment Points
■
Component side view
BATT+
LV (CV)
ANT
BPF
BPF: BPF Wave Adjust
LV (CV): VCO lock voltage
BATT+: Battery Warning Level
■
Foil side view
TC2
S1
PTT
S2
SIDE1
S3
SIDE2
J301
EXT. SP/EXT. MIC
VR1
TC2 : VCO lock voltage
VR1 : Frequency adjustment
