19
TK-760HG/762HG
ADJUSTMENT
Test Mode (TK-760HG Only)
■
Test Mode Operating Features
This transceiver has a test mode.
To enter test mode,
press [SCN] key and turn power on. Hold [SCN] key un-
til test channel No. and test signalling No. appears on
LCD.
Test mode can be inhibited by programming. To exit
test mode, switch the power on again. The following func-
tions are available in test mode.
• Controls
[PTT]
Used when making a transmission.
[MON]
Monitor on and off.
[SCN]
Sets to the tuning mode.
[A]
Function on.
[D/A]
RF power high and low.
[
]
Changes signalling.
[
]
Changes wide and narrow
[CH
/
]
Changes channel.
[Volume
/
]
Volume up/down.
• LCD indicator
“SCN”
Unused.
“AUX”
Lights at RF power low.
“MON”
Lights at monitor on.
“Right side dot” Lights at narrow.
• LED indicator
Red LED
Lights during transmission.
Green LED
Lights when there is a carrier.
■
Frequency and Signalling
The set has been adjusted for the frequencies shown in
the following table. When required, re-adjust them follow-
ing the adjustment procedure to obtain the frequencies you
want in actual operation.
• Frequency (MHz)
Channel
TK-760HG/762HG (K)
TK-760HG (M)
No.
RX
TX
RX
TX
1 (Center)
161.050
161.100
160.050
160.100
2 (Low)
148.050
148.100
146.050
146.100
3 (High)
173.950
173.900
173.950
173.900
4
161.000
161.000
160.000
160.000
5
161.200
161.200
160.200
160.200
6
161.400
161.400
160.400
160.400
7~16
–
–
–
–
Channel
TK-760HG/762HG (K2)
No.
RX
TX
1 (Center)
149.050
149.100
2 (Low)
136.050
136.100
3 (High)
161.950
161.900
4
149.000
149.000
5
149.200
149.200
6
149.400
149.400
7~16
–
–
• Signalling
Signalling No.
RX
TX
1
None
None
2
None
100Hz square
3
QT 67.0Hz
QT 67.0Hz
4
QT 151.4Hz
QT 151.4Hz
5
QT 210.7Hz
QT 210.7Hz
6
QT 250.3Hz
QT 250.3Hz
7
DQT D023N
DQT D023N
8
DQT D754I
DQT D754I
9
DTMF DEC, (159D)
DTMF ENC, (159D)
10
None
DTMF tone (9)
11
2-tone 321.7/928.1Hz
None
12
Single tone 1200Hz
Single tone 1200Hz
• Preparations for tuning the transceiver
Before attempting to tune the transceiver, connect the
unit to a suitable power supply.
Whenever the transmitter is turned, the unit must be
connected to a suitable dummy load (i.e. power meter).
The speaker output connector must be terminated with a
4
Ω
dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
• Transceiver tuning
(To place transceiver in tuning mode)
Channel appears on LCD. Set channel according to tun-
ing requirements.
LCD display (Test mode)
1
1
–
Channel No.
Signalling No.
Press [SCN], now in tuning mode. Use [D/A] button to
write tuning data through tuning modes, and [CH
/
] to
adjust tuning requirements (1 to 256 appears on LCD).
Use [
] button to select the adjustment item through
tuning modes. Use [A] button to adjust 3-point or 5-point
tuning, and use [ ] button to switch between wide/narrow.
LCD display (Tuning mode)
F R E Q
1
Adjustment
(1~256)
Adjustment item
.
.
.
.
.
.
Point tuning indicator
Wide/Narrow indicator
Off : Wide
On : Narrow
