TM-271A/271E
Item
2. Squelch
1) CH : RX low (Wide)
tight
CH : RX center (Wide/Narrow)
CH : RX high (Wide)
2) SSG output
: –115dBm (0.4µV) (Wide/Narrow)
Mod : 1kHz
Dev : ± 3.0kHz (Wide)
Dev : ± 1.5kHz (Narrow)
3. Squelch
1) CH : RX low (Wide)
open
CH : RX center (Wide/Narrow)
CH : RX high (Wide)
2) SSG output
: –125dBm (0.126µV) (Wide/Narrow)
Mod : 1kHz
Dev : ± 3.0kHz (Wide)
Dev : ± 1.5kHz (Narrow)
4. RSSI
1) CH : RX center (Wide)
writing
2) SSG output : –53dBm (501µV)
Mod : 1kHz
Dev : ± 3.0kHz
5. S-meter
1) CH : RX center (Wide)
S1
2) SSG output : –118dBm (0.28µV)
Mod : 1kHz
Dev : ± 3.0kHz
6. S-meter
1) CH : RX center (Wide)
full scale
2) SSG output : –96dBm (3.54µV)
Mod : 1kHz
Dev : ± 3.0kHz
26
ADJUSTMENT
Condition
Test equipment
SSG
Oscilloscope
AF V.M
Distortion meter
Measurement
Terminal
Parts
ANT
Encoder Adjust to open the squelch
EXT. SP knob
Push
encoder formed by the "Squelch
knob
Adjustment
Specifications/
Method
RSSI value writing is per-
open" item (center wide).
SSG output level is changed
and adjusted after SQ
adjustment.
This adjustment should not
turn the encoder.
Remarks