[Packet] Packet on 40/80 ?

Doug Younker [email protected]
Wed, 10 Sep 2003 10:06:05 -0500 

I do email off-line and I'm expecting a phone call so I can't go online to
Google Q125X25.  Can yo tell us more Rich?  Thanks--73
Doug, N0LKK
 [email protected]
----- Original Message ----- 
From: "Richard Harrison" <[email protected]>
To: <[email protected]>
Sent: Tuesday, September 09, 2003 5:56 PM
Subject: Re: [Packet] Packet on 40/80 ?


: More than 10 years ago ran a series of test on 40/80 packet that clearly
: showed that 150 baud provided better throughput on HF than 300 baud.  It
: does appear that the whole HF packet phase has now for the most part faded
: out of fashion.   Enter Q15X25 -- had 2-3 contacts on 15 meters but
nothing
: since then.  Has there been any interest on this list in Q15X25?
:
: Regards,
:
: de Rich/N2JR
:
: ----- Original Message ----- 
: From: "Dr. Gerald N. Johnson, electrical engineer" <[email protected]>
: To: <[email protected]>
: Sent: Sunday, September 07, 2003 10:32 AM
: Subject: Re: [Packet] Packet on 40/80 ?
:
:
: > HF packet has NEVER been great. The data speed (300 baud) is faster than
: > the path stability and bits get massacred by varying paths. You always
: > need to set retries to the maximum the TNC will do, the factory default
: > of 4 is way too few. You need to set maxframe at 1 and keep packlen
: > short (maybe 40 for HF) and you have a better chance.
: >
: > Pactor has always worked far better and always will. It was invented
: > after experience with 300 baud packet proved so rotten. Pactor II does
: > even better.
: >
: > 73, Jerry, K0CQ
: > -- 
: > Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
: > Reproduction by permission only.
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:
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