Kenwood TK-5400 Series Service Manual

Contents

31TK-5400ADJUSTMENTSQ ORRSILRSISQ THRSINSQONSQTBATTFMWDLO[Side 2]FM WIDE Max Deviation Deviation adj. (Center)FMWDt LO[Side 2]FM WIDE Max Deviation TA Deviation TA adj. (Center)FMNDLO[Side 2]FM NARROW Max Deviation Deviation adj. (Center)FMNDt LO[Side 2]FM NARROW Max Deviation TA Deviation TA adj. (Center)QTDVLO[Side 2]QT Deviation Deviation adj. (Center)QTDVt LO[Side 2]QT Deviation TA Deviation TA adj. (Center)DQDVLO[Side 2]DQT Deviation Deviation adj. (Center)DQDVt LO[Side 2]DQT Deviation TA Deviation TA adj. (Center)DTDVLO[Side 2]DTMF Deviation Deviation adj. (Center)DTDVt LO[Side 2]DTMF Deviation TA Deviation TA adj. (Center)[Orange] : Write data[Side 2][Orange] : Write data[Side 2][Orange] : Write data[Side 2][Orange] : Write data[Side 2][Orange] : Write data[Side 2][Orange] : Write data[Side 2][Orange] : Write data[Side 2][Orange] : Write data[Side 2]FM WIDE Squelch Threshold Threshold Level writing. (Center)RSSI Threshold RSSI REF Level writing. (Center)RSSI Low Level RSSI Low Level writing. (Center)FM WIDE Squelch Tight Tight Level writing. (Center)RSSI High Level RSSI High Level writing. (Center)FM NARROW Squelch Threshold Threshold Level writing. (Center)FM NARROW Squelch Tight Tight Level writing. (Center)Battery LevelENDBattery Warning Level writingBER (Bit Error Rate) Measurement1. The Panel Test Mode is used to measure the BER withthe TK-5400 (see 1. Panel Test.).2. Select a filter to be measured (see Filter Mode.).3. Select a frequency to be measured (see Test Fre-quency.).4. Select ”15” for test signaling (see Test Signaling.).(If there is no RF input signal, the display shows”.999999”.)C4FM (APCO) Deviation Adjustment1. The TK-5400 adjusts the deviation between High Devia-tion ± 1800Hz and Low Deviation ± 600Hz for the C4FM(APCO).2. The Symbol Rate Pattern is used when adjusting theHigh Deviation for the C4FM (APCO) (see Test Signal-ing.). This test signal has a peak deviation equal to 2/π1800Hz = 2827Hz.3. The Low Deviation Pattern is used when checking theLow Deviation for the C4FM (APCO) (see Test Signal-ing.). This test signal has a peak deviation equal to 2/π600Hz = 942Hz.5. Enter a standard input signal into the receiver as a stan-dard tone test pattern.6. Adjust the input signal level to achieve the standard biterror rate (BER).(For example, if the BER is 5%, the display shows”.050000”.)