[TowerTalk] Conductivity of cement

[WA3GIN]

One of our town's local 2m repeaters uses two separate antennas one for 
transmit and one for receive rather than spend the $1,500 for a duplexor. 
The penhouse concrete walls provide about 100db attenuation between the two 
antennas during repeater use.  No desense.  Seems like concrete does 
attentuate a bit ;-)

----- Original Message ----- 
From: "K4SAV" <RadioIR at charter.net>
To: <towertalk at contesting.com>
Sent: Saturday, September 06, 2008 12:18 PM
Subject: [TowerTalk] Conductivity of cement


> It just occurred to me that I have two pieces of data that seem
> contradictory....