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Old 2nd Mar 2021, 8:37 pm   #2167
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Default Re: The Audiophoolery Thread.

Quote:
Originally Posted by merlinmaxwell View Post
It could be made logarithmic (pick your own exponent).
The big ATU i built has logarithmic power detectors (Analog devices chips circa 1993) So the forwards power meter and reverse power meter have calibrations at 10mW, 100mW, 1W, 10W, 100W, 1kW. There's a PEP function for SSB, and with CW you can select the reflected meter to read computed return loss (SWR by another name)

And for kicks, I put in a phase meter.

Now for the admission.... building an SPC transmatch was completely a daft thing to do as al my HF antennae have been balanced. Trying to run a balun between an ATU and an antenna is just plain stupid. Oh, well, I found out the hard way. Lovely bit of construction, though. but completely the wrong thing.

David
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