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Integrated receive filters, build in the model 419 filters for tx and rx, or a better rx only filter like the w3lpl design.
No front panel operation. Completely controlled from computer via ethernet, wireless, usb, etc. Including fault monitoring, power on/off, tuning, etc.
Pass through antenna selection signals to detect antenna changes and trigger retuning. For instance, i have up to 48 (6 bands * 8 control lines) relay control lines from my antenna selection boxes. The amp would remember which combination of antennas and bands it had been tuned for and return to those settings or if it had never been used before force a new tuneup. this would have to be very generalized since i use ...more »
Automatic setting input level to achieve specified pep output. Preferably done without affecting the radio driving it.
Use direct digital synthesis as is done in high end broadcast amps.