Re: SSTRAN AMT3000 peaking
Here is Phil Bolyn's (SSTRAN) answer to my question re peaking.
4.2 VDC is correct for operation at the high end of the band. This is just an uncelebrated, relative indication of the signal on the antenna, sort of like a built in relative field strength meter. The purpose of the meter circuit is to give you a visual indication of tuning and make it easier to set the tuning to the peak.
The fairly high value (220k) resistor R14 in series with the diodes D5 and D6 in the meter circuit provides a very reduced sampling of the voltage at the antenna. The small sample is just enough to produce a few volts for the meter, and is small enough so as not to adversely affect the output signal.
Phil Bolyn
SSTRAN
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