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[aprssig] Inexpensive APRS transmitter kit

Tom Azlin N4ZPT n4zpt at cox.net
Tue Apr 20 21:39:15 UTC 2010


Yep, very true.  The Vienna Wireless Society flew a balloon last year 
with receive working. Barely got any packets. No more will we do that! 
We are likely to shift the receive frequency off of the main channel for 
commanding and continue to run low power of a few hundred milliwatts.

73, Tom n4zpt



On 4/18/2010 7:38 PM, Scott Miller wrote:
> And an APRS balloon tracker that holds off while waiting for the channel
> to be clear will likely never get a packet out at altitude. Unless
> you're on an alternate frequency, you just have to keep the power down,
> use a reasonable beacon rate, and limit the path.
>
> Scott
> N1VG
>
> Cap Pennell wrote:
>> Please remember in your search for hardware, especially at any
>> elevation on
>> a shared ham frequency, any "transmit only, no signal detect" device is
>> always sadly sending "I'm proving _my_ unfounded vanity and greed but the
>> rest of you suck."
>> 73, Cap



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