Kenwood 144MHz FM TRANSCEIVER K2E - Manual (Page 58)

TH-K2AT/K2E/K2ET
55
BPF
Q9
Q11
Q16
Q10
Q12
Q17
BPF
Q24
MIC AMP
vco
ANT
FILTER
50
Ω
ANT
9.74Vrms
0.84Vrms
-18.68dBm
10.50dBm
4.17dBm
15.17dBm
11.00dBm
24.67dBm
20.83dBm
30.50dBm
AF(1kHz)
RF(145.99MHz)
ANT
FILTER
-59.33dBm
-62.50dBm
-31.83dBm
-47.83dBm
vco
-35.83dBm
-17.33dBm
FM IC
IC3
IC6
AMP
RF(145.99MHz)
AF(1kHz)
IF(38.85MHz)
-53.00dBm
0.26Vrms
12.09mVrms
0.66Vrms
0.58Vrms
MIC
ANT
SP
-9.83dBm
IC16
LEVEL DIAGRAM
All voltage levels must be measured at High power transmission. The RF and IF sections are measured by using a spectrum analyzer
.
After setting the standard (1 kHz, 3 kHz Dev
.) deviation, each voltage
of the AF section is measured by using an AF VTVM or osciloscope. The level for each point is measured without removing parts or cutting the pattern. All voltage levels must be measured after setting the AF output volt- age at 0.58V rms. The RF and IF sections are measured by using a spectrum analyzer
.
Each voltage of the AF section is measured by using an AF VTVM or osciloscope. The level for each point is measured without removing parts or cutting the pattern.
Transmitter Section Receiver Section