The TS-2000 has a separate antenna jack for 2 meters and 440 is another 
jack. If you have a dual band antenna, as most of us do, and you want to get 
on both bands, you need a duplexer to connect to both jacks so you can 
connect one antenna to them both. You can't just use a t splitter because 
you'd be transmitting right in to the other jack and blowing the receiver 
out, the duplexer filters that out though I sometimes wish I had a antenna 
that covers 6 meters as well and a triplexer but nothing's in the 
foreseeable budget here so I don't think I'll be doing that.
----- Original Message ----- 
From: "Howard Kaufman" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, June 13, 2014 10:47 AM
Subject: Re: Trying to Make My First 2M QSO on TS-2000


> What does the duplexor do?
> Can't figure why it is needed.
>
>
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