[Antennaware] Dual output K9AY
Guy Olinger, K2AV
olinger at bellsouth.net
Sun May 24 17:34:37 PDT 2009
The first thought given to that kind of change in gain is that one of the
gotcha's has been violated somewhere in the model. But the only way to
judge that would be to see the model itself, if you care to pass it on.
Otherwise you would have to describe it connection by connection, with all
the information about each segment, in open English text.
----- Original Message -----
From: "Andy Ikin" <andrew.ikin at btopenworld.com>
To: <antennaware at contesting.com>
Sent: Sunday, May 24, 2009 4:53 PM
Subject: [Antennaware] Dual output K9AY
> Hello guys,
> I have been trying to model a Dual Output K9AY I.e. taking another output
> from where the termination is normally placed. Then combine the two equal
> amplitude outputs with a small phased shift:
> 10 deg. at 500kHz; 20 deg.at 1MHz; 30 deg. at 1.5MHz, 37 deg. at 1.85MHz.
> This provides the typical K9AY pattern. However, the gain 8dB higher at
> 1.85MHz and 22dB higher at 0.5MHz compared to the K9AY.
> I have yet to verify the model. However, does the model change stack-up??
> Andrew Ikin
> Antennaware mailing list
> Antennaware at contesting.com
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