Kenwood TH-K2AT, Руководство по обслуживанию

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TH-K2AT/K2E/K2ET
37
ADJUSTM ENT
Item Condition
M easurement Adjustment
Specifications/
Test equipment Unit Terminal Unit Parts M ethod
Remarks
Sw itch to Adjustment mode
and carry out the operations
for adjustment item D.
(Refer to page 29)
S-meter 3) LCD display: S1 SSG TX-RX ANT [M ENU] Write
Frequency: 145.050M Hz (A/3)
(E, E3)
Frequency: 146.050M Hz
(K, K2, M , M 2)
SSG: –120dBm (0.22uV)
4) LCD display: S9 [M ENU] Write
Frequency: 145.050M Hz
(E, E3)
Frequency: 146.050M Hz
(K, K2, M , M 2)
SSG: –105dBm (1.26uV)
4.Squelch Squelch level: 1
Check 1) Frequency: 145.050M Hz SSG Check Open Squelch
(E, E3) Oscilloscope
Frequency: 146.050M Hz Distortion meter
(K, K2, M , M 2)
SSG output: –123dBm (0.158uV)
SSG M OD: 1kHz
SSG DEV: 3kHz
2) SSG: OFF Close Squelch
5.S-meter 1) Frequency: 145.050M Hz SSG Check Tw o segments
Check (E, E3) in S-meter
Frequency: 146.050M Hz light.
(K, K2, M , M 2)
■■
SSG output: –120dBm (0.22uV)
2) SSG output: –105dBm (1.26uV) All segments in
S-meter light.
■■■■■■■■■
6.Hum and 1) Frequency: 145.050M Hz SSG TX-RX ANT
noise ratio (E, E3) Oscilloscope (A/3) SP
Check Frequency: 146.050M Hz Distortion meter
(K, K2, M , M 2) AF V.M
SSG output: –53dBm (501uV)
SSG M OD: 1kHz
SSG DEV: 3kHz
AF Output: 0.63V/8
Ω
AF V.M = 0dB
2) SSG DEV: OFF Check –38dB or less
7.AF distortion 1) Frequency: 145.050M Hz Check 5% or less
Check (E, E3)
Frequency: 146.050M Hz
(K, K2, M , M 2)
SSG output: –53dBm (501uV)
SSG M OD: 1kHz
SSG DEV: 3kHz
AF Output: 0.63V/8
Ω