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[aprssig] Airborne APRS

AE5PL Lists HamLists at ametx.com
Fri Oct 28 17:10:59 UTC 2005


> -----Original Message-----
> From: Robert Bruninga
> Posted At: Friday, October 28, 2005 11:36 AM
> Subject: Re: [aprssig] Airborne APRS
> 
> If the aircraft is going to digipeat the downed balloon, make 
> SURE that it can be set to IGNORE DCD so that it will 
> transmit as soon as it hears the balloon independent of all 
> the other QRM on the channel.
> 
> Otherwise, it will never transmit at altitiude.  Bob

Hmm, you are speaking from experience?  My _experience_ has been that
even operating at 12,000 feet over the DFW area (one of the hottest
spots for APRS in the world according to your map) is the exact
opposite.  I operated a D7 with DCD turned on and it transmitted at
altitude.  I think your continual encouragement of transmitting in the
blind causes more QRM (_interference_) than what exists on the channel
already.

73,

Pete Loveall AE5PL
mailto:pete at ae5pl.net 




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