TK-3501
21
ADJUSTMENT
Item
Condition
Measurement
Adjustment
Specifications / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
7. Battery
Detection
Check
(User mode)
1) BATT terminal voltage: 5.7V
PTT: ON
Power
meter
DVM
TX-RX ANT
BATT
terminal
Check
LED blinks
No transmit power
2) BATT terminal voltage: 7.5V
PTT: ON
LED does not blink
• This transceiver is designed to make adjustments simple.
• It is not necessary to adjust the fixed values for the DQT-DEV, QT-DEV, and MIC sensitivity.
Receiver Section
Item
Condition
Measurement
Adjustment
Specifications / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
1. Sensitivity
Check
1) Adj item: Center
SSG output: –116dBm
(0.35µV)
SSG DEV: 1.5kHz
SSG
DVM
Oscilloscope
AF VM
TX-RX ANT
SP/MIC
connector
Check
12dB SINAD or more
2. Squelch
Level 5 Write
1) Adj item: Center
SSG output: –119dBm
(0.28µV)
SSG DEV: 1.5kHz
FPU
Write
• The Squelch Level 9 setting uses the Squelch Level 5 calculated adjustment level value.
