Tim, I wondered the same thing but my experience with various rigs is limited.  
When I got my TS-2000 I was surprised with the relay switching it does.  

Perhaps the devices that can replace the old RF switching relay are not so 
long-lived?  At any rate they also have a finite lifespan so we should take 
that into consideration when considering fast switching modes.

Howard K5HB



----- Original Message ----
From: Tim N9PUZ <[EMAIL PROTECTED]>
To: digitalradio@yahoogroups.com
Sent: Friday, August 29, 2008 8:56:40 AM
Subject: Re: [digitalradio] Fast ARQ Hardware


This is a sidebar to the current discussion but I've always been 
surprised at the amount of mechanical T/R switching that goes on in 
modern transceivers vs. a "no moving parts" approach.

Tim, N9PUZ

Howard Brown wrote:

> You are an engineer so you know that there is a finite limit to the 
> number of times a rig can switch until the switching devices fail.

    

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