TK-880/H (UHF) mobile service manual - The Repeater Builder's ...

Transmitter Section
Item
Condition
ADJUSTMENT
Measurement
Testequipment
Unit Terminal
Adjustment
Unit Parts Method
TK-880/H
Specifications/Remarks
1. Frequency 1) Set test mode Power meter Rear ANT Check K,HK : 470.100MHz± 100Hz
Select “FREQ” in tuning mode. F. counter panel K2,HK2 : 498.600MHz± 100Hz
PTT : ON
K3,HK3 : 418.100MHz± 100Hz
2. Power 1) Maximum power TX-RX VR1 26.0W : K,K2,K3 ± 0.5W : K,K2,K3
output Set test mode (A/2) 40.0W : HK,HK2,HK3 ± 2.0W : HK,HK2,HK3
Select “H POW” in tuning mode.
“H HPOW 256” : K,K2,K3
“C HPOW240” : HK
“C HPOW230” : HK2
“C HPOW245” : HK3
PTT : ON
3. High power/ 1) Set test mode 25.0W : K,K2,K3 ± 1.0W : K,K2,K3
High power Select “H POW” in tuning mode. 40.0W : HK,HK2,HK3 ± 5.0W : HK,HK2,HK3
check (HK, “L HPOW”
HK2,HK3) PTT : ON
2) “L2 HPOW”
PTT : ON
3) “C HPOW”
PTT : ON
4) “H2 HPOW”
PTT : ON
5) “H HPOW”
PTT : ON
4. Low power 1) Set test mode Power meter 5.0W : K,K2,K3 ± 0.5W : K,K2,K3
Select “L POW” in tuning mode. 10.0W : HK,HK2,HK3 ± 1.0W : HK,HK2,HK3
“L LPOW”
PTT : ON
2) “L2 LPOW”
PTT : ON
3) “C LPOW”
PTT : ON
4) “H2 LPOW”
PTT : ON
5) “H LPOW”
PTT : ON
5. Power check 1) Set test mode Power meter ANT Check 25W±1W, 7A or less
CH : CH1 - Sig1
: K,K2,K3
CH2 - Sig1 Ammeter DC IN 40W±2W, 12A or less
CH3 - Sig1
: HK,HK2,Hk3
PTT : ON
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