[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: TDMA - Reading the mail



On 12/21/00 3:10 PM Bruce Bostwick (lihan@ccwf.cc.utexas.edu) wrote:

>>In APRS PTT mode, your LAT/LONG/CSE/SPD/ICON/COmment and STATUS are all
>>encoded into a 0.3 sec burst when you release the PTT.  The D7(G) and D700
>>can do it in under 0.1 sec at 9600 baud and hardly noticible at all.
>
>Unless you're on a repeater, in which case other operators in a 
>roundtable QSO might object to the brrEEEP following every keyup .. 
>;-) .. we had a few operators beaconing on a local 2m machine from 
>time to time when they forgot to switch over to 144.39 ..
>
1200 baud is the brrEEEP you picture, 9600 baud sounds like a static 
burst, it occurs at the end of a transmission, not the beginning, and it 
is not every transmission, but one every n minutes (the n being user 
selectable).

Steve K4HG
----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home