[K3CAL] dual band mobile antenna question

[Chuck Shefflette - AA3CS]

Unless you have room to separate the antennas by 20-30 feet and have a very efficient duplexer, a single antenna will work fine. In any case, the transceiver has an internal duplexer and both bands are sharing the same piece of coax so...

I have a dual-band Diamond on the car. While I don't have a transceiver that will do cross band repeat, I do have a couple of repeaters saved with RX on 440 and TX on 2M, or vice versa. It works well.

Chuck
AA3CS

On Aug 02, 2012, at 12:48 PM, KB3WFV <kb3wfv at yahoo.com> wrote:

Thanks for the input
 
So, a single dual band antenna will work fine for a radio that can
cross band repeat ?
The TX on 2 meters won't interfere with the RX of the 440 (or vice versa) when
the radio is connected to only one antenna ?? 
 
Brian
KB3WFV

--- On Thu, 8/2/12, KB3WFV <kb3wfv at yahoo.com> wrote:

From: KB3WFV <kb3wfv at yahoo.com>
Subject: [K3CAL] dual band mobile antenna question
To: k3cal at mailman.qth.net
Date: Thursday, August 2, 2012, 7:05 AM

Hello
I am considering purchasing a new
dual band 2m/440 mobile radio with crossband repeat
and I am wondering about the antenna (s).
 
Which would be better?
 
A single dual band antenna
 
or two antennas one 2 meter and one 440 
with a duplexer
 
Brian
KB3WFV  

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