Hi Mark, Do we know what the BBS power output will be increased too??? With my busy schedule I will be unable to upload pictures before hand. Hopefully there are some on the bbs before Sunday to download at 38.4k. Angelo Glorioso III
--------------------------------------------------------- If you don't ask, you will never know!! > Date: Fri, 12 Nov 2010 09:29:51 -0500 > From: [email protected] > To: [email protected] > CC: [email protected] > Subject: [amsat-bb] 38k4 packet operations on AO-51 Nov 14-18, 2010 > > Hello All, > > Just a reminder that we'll be running a few days of 38k4 packet > beginning Sunday afternoon/evening until Thursday afternoon/evening, > as per the schedule below. Note the voice repeater will be OFF. > > Please keep in mind that receiving packet at 38k4 requires more than > your "stock" FM receiver and TNC. Generally speaking, folks are using > a Symek board installed in their satellite radio to tap the IF which > is then fed to a high speed TNC. Other options for a receiver include > a PCR-1000/1500/2500 in FM mode with filters set to 50 kHz (NOT > Wide-FM) (I think that's the right filter width). > > Please remember Douglas Quagliana's KA2UPW soundcard decoder (as > presented in the AMSAT Journal a few issues back) that can be > downloaded here: http://www.quagliana.com/ Look for Willow and > Sabins. I suggest you get the software and test it out at 9600 > before you attempt 38,400, so to become familiar with how it works > with your receiver. It does work at 38k4--but remember you must have > an appropriate receiver! > > It is possible to use some of the SDR stuff I'm sure, if you record > with your SDR software and play back through KA2UPW's Willow program. > > I have a few options in my shack, as I've been running 38k4 since the > good old UoSat days: > > Receivers capable of 38k4 (up to 76k, actually): > TS-2000x with Symek IF board > TS-790A with Symek IF board > Icom PCR-1500 > > For decoding: > Paccomm Spirit/Sprint-2 Satellite TNC models with 38k4 filters installed > Willow > > My preferred combination is the TS-2000x with Symek IF board feeding a > Pacomm Sprint-2 satellite model. I seem to get the best performance > out of this combo. > > Here's a reminder of the schedule: > > November 14 (late UTC) > 38k4 Baud PBBS Operations, L/U > Uplink: 1268.705 MHz FM at 9600 baud > Downlink: 435.150 MHz FM at 38,400 baud > > November 18 (late UTC) > FM Repeater, L/SU > Uplink: 1268.705 MHz FM (no PL tone) > Downlinks: 2401.200 MHz FM *and* 435.300 MHz FM (at low power!) > > 73! > -- > Mark L. Hammond [N8MH] > _______________________________________________ > Sent via [email protected]. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
