It is just like a telephone conversation.  With little or no delay, however 
back in the days of AO-40 (sobsob), when it was way out there, the delay was 
very noticeable and listening to ones self you got a bit stuttering. 

73 Bob W7LRD 



----- Original Message -----


From: "David 4X1DG" <[email protected]> 
To: "Mike" <[email protected]>, [email protected] 
Sent: Wednesday, July 27, 2011 5:51:26 AM 
Subject: [amsat-bb] Re: Full Duplex? 

Mike, 

It depends on the transceiver that you have. 
Essentially the up link and down link are using different bands, U and V for 
example. 
If you transmit on a V uplink your transmission is transmitted back on the 
downlink on a U frequency. 
If your transceiver is capable of duplex operation, you can hear your own 
transmission on the downlink 
with a delay that depends on the sat distance from your location. with today's 
leo sats, it is hardly noticeable.  The duplex in the sat communications means 
that you can transmit and receive simultaneously. 

Hope that that clarify. 

David, 4X1DG 
  ----- Original Message ----- 
  From: Mike 
  To: [email protected] 
  Sent: Wednesday, July 27, 2011 3:25 PM 
  Subject: [amsat-bb] Full Duplex? 


  I'm having a difficult time of understanding the concept of Full Duplex. Can 
  anyone explain it to me? I have the ARRL satellite book, read about it in 
  there and Wikipedia. I still didn't understand how it works with a 
  transceiver setup like we use. 

   

         Mike   N8GBU 

   

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_______________________________________________ 
Sent via [email protected]. Opinions expressed are those of the author. 
Not an AMSAT-NA member? Join now to support the amateur satellite program! 
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb 
_______________________________________________
Sent via [email protected]. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

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