Solid State Amplifiers

Some design considerations for a solid-state HPA

Submitted by
Add your comment

Voting

0 votes
Active

General

High voltage switching power supply

What are the hurdles to successfully designing and constructing such a supply? It seems that the weight savings would be substantial. Is the RFI problem the only barrier?

Submitted by (@rudy00)
Add your comment

Voting

2 votes
Active

General

Separate toroids below 7 MHz

Pi-L plate circuit with separate toroids for all bands below 7 MHz

Submitted by (@rudy00)
1 comment

Voting

2 votes
Active

General

Direct digital synthesis

Use direct digital synthesis as is done in high end broadcast amps.

Submitted by
1 comment

Voting

-1 votes
Active

General

Advanced ALC

Automatic setting input level to achieve specified pep output. Preferably done without affecting the radio driving it.

Submitted by
Add your comment

Voting

1 vote
Active

General

Advanced antenna change detection

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 »

Submitted by
Add your comment

Voting

1 vote
Active

General

No front panel.

No front panel operation. Completely controlled from computer via ethernet, wireless, usb, etc. Including fault monitoring, power on/off, tuning, etc.

Submitted by
Add your comment

Voting

0 votes
Active

General

Integrated receive filters.

Integrated receive filters, build in the model 419 filters for tx and rx, or a better rx only filter like the w3lpl design.

Submitted by
Add your comment

Voting

0 votes
Active

General

Built-in SO2R

Honest-to-God SO2R capability where two separate tuned inputs are switched to their own tuned outputs to share the RF deck across two different transceivers on two different bands. Share the expensive tube, power supply, and protection circuit while effectively doubling the input and output tuning circuit

Submitted by (@rudy00)
1 comment

Voting

1 vote
Active

General

FULL QSK

Reliable FULL QSK CW operation....

Submitted by
Add your comment

Voting

2 votes
Active

General

Multi speed fans, push pull cooling

Multi speed fans, push pull cooling

Submitted by (@rudy00)
Add your comment

Voting

2 votes
Active

General

3.5 KVA power supply

3.5 KVA power supply whether switching or conventional.

Submitted by
Add your comment

Voting

0 votes
Active