Reference Value For Source Radio - HYT TC-508 Service Manual

Set
frequency).
Wid
RX
e
Sensitivity
Short press PTT to
Ban
(Bandpass)
d
switch among different
frequencies (low,
medium and high).
Appendix 1:

Reference Value for Source Radio

Test Item
TX Low Power
TX High Power
CDCSS Balance
CDCSS Deviation
CTCSS Deviation (67Hz)
CTCSS Deviation (151.4Hz)
CTCSS Deviation (254.1Hz)
TX Low Voltage Threshold
Max. TX Audio Deviation
SQL Normal Open
SQL Normal Close
RX Low Voltage Threshold
Bandpass Filter
Note: The value is subject to that of the source radio.
Communicati
to CH13 (low
on test set
-119dBm
MOD: 1KHz
DEV: 3.0KHz
Filter: 0.3 -
Wide Band
Freq. 1 Freq. 2
38
83
87
119
121
133
126
39
53
76
SSG:
Antenna
connector
3KHz Accessor
y Jack
Freq. 3
40 39
81 83
Dependent on the waveform.
85 87
120 119
123 135
135 137
173
128 136
40 43
51 55
186
123 173
77
TC-508 Service Manual
value, finally
rotate the
Channel
Selector knob
to save it.
Check the
bandpass
waveform,
and use SK1
and SK2 to
perform
tuning. After
SK1
SK2 three-point
tuning is
completed,
rotate the
Channel
Selector
knob to save.
Narrow Band
Freq. 1 Freq. 2
/ /
/ /
50 51
75 72
73 71
79 83
173
58 60
31 32
46 45
186
/ /
given with
red LED
flashing.
Rotate the
Volume
Control
knob to a
proper
location
until the
output
amplitude
is not
limited.
SINAD:
≥12dB
Freq. 3
/
/
52
71
80
89
63
35
45
/