User's Manual

SYSTEM BLOCK DIAGRAM
System Block Diagram
HARDWARE SETTING DESCRIPTION
HARDWARE SETTING DESCRIPTON
TX125 HARDWARE SETTING DESCRIPTION
1.Jump setting for digital modulation.
J2 J3 J5 J6 Description
O X O X For external modulation signal and digital input level 0 ~ 5V (TTL level)
X O O X For external modulation signal and digital input level -12V~ +12V ( RS232 level)
X X X O For internal encode (TAP MODE)
2.External analog modulation.
Analog modulation sensitivity : 8kHz deviation (+/- 4kHz)@ 1Vp-p 1kHz sine wave.
3.Carrier detective active level (S_RSSI setting)
for reference
Receive signal level S_RSSI value
-70dBm 170
-75dBm 159
-80dBm 148
-85dBm 140
-90dBm 127
-95dBm 119
-100dBm 110
-105dBm 100
-110dBm 90
-115dBm 83
-120dBm 75