"Netgeek" wrote in message
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So you're saying that there's no info because it's far too simple - so why
bother to write it up in a text or app note?

I suspect there's just not much interest in VHF AM. At least the HF AMers
have a world to find contacts in. Contacts on VHF are pretty much local,
and the probablility of finding a fellow AMer on VHF locally are vanishingly
small.

Indeed, why would someone use AM on VHF? If you don't like the sound of
sideband, use FM. If you simply want to get the message through, use
packet. If you want to operate under adverse conditions, use CW. AM has
precious few advantages in this day and age.

If you look in old issues of the Handbook, you will find designs for VHF AM
gear. If you hang around hamfests, you might uncover a twoer or sixer that
might still be coaxed into working. But mostly you will find tube gear from
an age when FM was complex and finicky.

But today, VHF FM is ubiquitous and cheap, so any AM equipment is playing to
a tiny niche.

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