TOPIC : Test Performed with TXTEST.ASM from Pawel SP9VRC
Author: Danie ZS6AWK
Date  : 26/8/95

Tests on radio TS690S (HF & 6m transceiver with DSP options)
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Set Pout=10W max
audio level into rig set at full ALC range (ie not over red ALC
range)
note that rf power meter covers 0-20W so measurement accuracy is
not very good

Audio Freq   RF Power out
156Hz        0Watt
266          2
346          4
396          5
600          10
2500         10
2767         5
2947         2
3000         1
3067         0

Conclusion: radio is virtually flat from 600Hz to 2500Hz on TX mode.
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Tests on radio IC275E (2m all mode rig)
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signal was monitored on a TR-9000 2m rig

Audio Freq   RF Power out
100Hz        0Watt
189          100mW
220          300mW
240          500mW
269          1Watt
300          1.2
359          1.5
400          1.7
2600         1.7
2739         1.2
2759         1Watt
2779         0.8
2799         0.5
2839         0.2
2879         0.01Watt
4000         0 (still audible on headphones direct on EVM)
66Hz         0 (still audible on headphones direct on EVM)

Conclusion: response 400-2600Hz
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On ossilloscope: 50-3360Hz output is 300mV
Amplitude goes down above/below 3360/50Hz; must be effect of
caps on CODEC but what about the higher freq ? What is causing
this ?
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