It wouldn't be impossible that an applications engineer at the factory might be
able to assist. Decibel went to Andrew and now is CommScope.
Chuck
WB2EDV
----- Original Message -----
From: Dan Hancock
To: repeater builders
Sent: Thursday, November 19, 2009 11:42 AM
Subject: [Repeater-Builder] Antenna Pattern Question
I have a repeater that I need to have as tight a cardiod pattern as
possible. I have looked at the dipole antennas such as the DB-411 and they
don't really shut down the back door quite enough.
Does anyone have any antenna modeling software that would show the
result of adding an 18" wide screen to the back side of the mast on the DB-411?
Does anyone have any experience in home-brewing a modification like this?
Dan Hancock N8DJP
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