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World of Ham Radio 1997
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WOHR97_AmSoft_(1997-02-01).iso
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kam_10.doc
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1997-02-01
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13 lines
KAM.10
I have experienced problems using a KAM with the TR78xx series of transmitters.
The problem was due to overdriving of the audio from the KAM LO outout which is
about 10 mv p-p. While this worked OK on the older TR7400 rig it caused many
repeats and time-outs with the 7800,7830 and 7850. The change is as follows..
Replace R11 on the KAM board with a 200-500 miniature multu-turn pot and with
the help of another station with a VU meter set the pot for a level of zero DB
or to the same level as a reference station in your area.The approximate level
for the KAM audio out is about 3 mv but you may find minor differences.
73 .. Fred @ VE3NUU.