Level Diagram - Kenwood TK-880 Service Manual

Receiver Section
TK-880 (E,E4)
–118.0dBm –122.0dBm –116.0dBm
TK-880 (E3)
–121.0dBm –124.0dBm –116.0dBm
BPF BPF
Transmitter Section
W 5k/W4k/N W 5k/W4k/N W 5k/W4k/N
4.0mVrms 7.0mVrms 33mVrms
1. AG is set so that MIC input becomes 3kHz (Wide 5k), 2.4kHz (Wide 4k), 1.5kHz (Narrow) DEV. at 1kHz MOD.
2. Transmitting frequency : Center frequency.
96
TK-880
–116.0dBm –108.0dBm
W 5k/W4k/N W 5k/W4k/N W 5k/W4k/N W 5k/W4k/N
370mVrms 430mVrms 460mVrms 130mVrms
(X58-4722-70) : E,E4
(X58-4722-71) : E3
TK-880

LEVEL DIAGRAM

W 5k –93.5dBm W 5k –99.5dBm
W 4k –92.5dBm W 4k –98.5dBm
N –88.0dBm N
–121.0dBm –109.0dBm
SG input level for 12dB SINAD are obtained measured by
AF VTVM
connecting SG to each point via a 0.01µF capacitor.
AF level obtained when the AF output level is adjusted for 0.45V/4Ω with
the front panel AF VOL control. Measured with AF voltmeter connected
to the external speaker jack, receiving a –53dBm SSG signal modulated
at 1kHz, DEV. 3kHz (Wide 5k), 2.4kHz (Wide 4k), 1.5kHz (Narrow).
4.3dBm 5dBm 17dBm
Wattmeter by 50Ω
97
–95.0dBm
W 5k/W4k/N W 5k/W4k/N W 5k/W4k/N W 5k/W4k/N
62mVrms 30mVrms 820mVrms 820mVrms
25dBm (E,E3)
20dBm 20dBm (E4)
W 5k/W4k/N
16mVrms 0.45Vrms
25W