HYT TM-800K, Service Manual

Page: 90 / 128

TM-800K Service Manual
88
21. RSSI High
Levle
Enter adjustment
item “13”, turn to CH
(C), CH(L), CH (H),
CH(mC), CH(nC),
CH(nL), CH(nH)
Radio Communication
Test Set
SSG output:
-70dBm
MOD:1KHz
DEV: ±3KHz(W)
±2.4KHz(M)
±1.5KHz(N)
FILTER: 0.3-3.0KHz
ANT
SP Jack
Adjust
software
setting
Press [ PF2 ] to adjust
software settings,
once the value is
changeless, press
[ PF6 ] to save it.
22. RSSI Low
Level
Enter adjustment
item “14”, turn to CH
(C), CH(L), CH (H),
CH(mC), CH(nC),
CH(nL), CH(nH)
Radio Communication
Test Set
SSG output:
-120dBm
MOD:1KHz
DEV: ±3KHz(W)
±2.4KHz(M)
±1.5KHz(N)
FILTER: 0.3-3.0KHz
ANT
SP Jack
Adjust
software
setting
Press [ PF2 ] to adjust
software settings,
once the value is
changeless, press
[ PF6 ] to save it.
UHF:
4KHz±0.1KHz(W)
VHF: 3.5KHz±0.1KHz
(W)
UHF: 3.2KHz±0.1KHz
(M)
VHF: 2.8KHz±0.1KHz
(M)
23. DI
Deviation
Enter adjustment
item “15”, turn to CH
(C), CH(L), CH (H),
CH(mC), CH(nC),
CH(nL), CH(nH)
Radio Communication
Test Set
FILTER: 0.05-15KHz
AF: 1KHz 300mV
ANT
DI Input
Adjust
softwares
ettings,
press
[ PF6 ] to
save and
enters the
next item
UHF:
2KHz±0.1KHz (N)
VHF: 1.75KHz±0.1KHz
(N)
No need to adjust
24. Distortion Check DIS ≤ 5%
25. S/N
1.CH: RX Center
Radio Communication
Test Set
SSG output:
-60dBm
ANT
SP Jack
FILTER:
0.3 KHz -
3.0 KHz
S/N ≥ 48 (W)
S/N ≥ 48 (M)
S/N ≥ 42 (N)
Note: The radio must be covered with aluminum chassis when adjusting sensitivity; Connect an RF
power meter to the antenna connector while TX; Connect a SINAD meter with a 16ohm load to the
external [ SP ] jack.