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Re: iss packet

That's the way it appears to me.  I can see altering the xmit freq from 
the ISS to suit the area covered, but on semi-duplex usage, what 's the 
point of splitting the t/r freqs?  Not that it makes any real 
difference in the  long range of things, as long as we know what it is. 
  This would make a real difference if it was full duplex.  I 'spose 
that if there are a lot of satellite ops in your immediate area that 
aren't set up correctly, it might make a difference in your recieve 


On Friday, December 26, 2003, at 08:48 AM, Christensen, Eric wrote:

> Yeah, but it isn't full duplex.  When it is transmitting, it isn't 
> listening
> on the up freq.  So it might as well have been a collision because the 
> radio
> didn't hear it.
> 73s,
> Eric KF4OTN
> At 02:31 AM 26/12/2003, Christensen, Eric wrote:
>> Why go with the frequency pair?  I am hoping for more time on the
>> digipeater
>> (-4) and I think the duplex is just added "stuff" to have to deal 
>> with.  Is
>> there a bonus for having the split?
>> Eric KF4OTN
>      Cuts the traffic (and hence the probability of colliding packets) 
> in
> half.  I would think the "hidden transmitter syndrome" is greatly 
> enhanced
> when trying to work a moving target with just a 12-15 minute window.  
> Split
> operation helps this.
> 73/DX Paul VE1DX (QSL via VE1YX)
Larry Faehling
Amateur Radio KL7IBV in Wisconsin
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