[Amps] Alpha 76 160 meter 2nd harmonic

[Chris Hays]

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Message: 2
Date: Sun, 29 Jan 2017 08:32:19 -0700
From: Steve London <n2icarrl at gmail.com>
To: amps at contesting.com
Subject: [Amps] Alpha 76 160 meter 2nd harmonic
Message-ID: <588E0B03.8020401 at arrl.net>
Content-Type: text/plain; charset=utf-8; format=flowed

I was surprised to receive e-mail that the 2nd harmonic of my 1866.5 signal
was QRMing a QSO on 3733. I know that 160 meters was added to the Alpha 76
as an afterthought when the FCC raised the 160 meter power limit just before
the Alpha 76 was released. As a result of that design decision, the loading
control works "backwards" on 160. While the schematic shows a Pi-L on 160,
that is clearly not reality. Anyone care to venture what the real-life
equivalent circuit is on 160 ?

73,
Steve, N2IC


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