[amsat-bb] Re: Transatlantic balloon attempt
g0mrf at aol.com
g0mrf at aol.com
Sat Mar 24 13:47:28 PDT 2012
Instead of listening for audio, try running some SDR software and look at the waterfall display for the transmission. - Should give you at least 10dB better S:N. - But you need to be really confident about the calibration of your receiver and hope the balloon TX is fairly stable...hopefully a TCXO reference.
From: Bob Bruninga <bruninga at usna.edu>
To: amsat-bb <amsat-bb at amsat.org>
Sent: Sat, 24 Mar 2012 18:42
Subject: [amsat-bb] Transatlantic balloon attempt
I still have not heard of anyone copying the HF beacons on 30 and 40m. (10.147
and 7.102 MHz). I am curiouis about this because our next balloon flight will
only have an HF beacon and nothing else.
I have been in the 400 mile footprint most of the morning, and have heard
nothing, though it is tracking out past Nova Scotia just fine on APRS...
---- Original message ----
>Date: Sat, 24 Mar 2012 17:48:18 -0000
>From: aprsisce at yahoogroups.com (on behalf of "Steve Daniels"
<steve at daniels270.eclipse.co.uk>)
>Subject: RE: [aprsisce] Transatlantic balloon attempt
>To: <aprsisce at yahoogroups.com>
> For those interested tracker battery volts are
> showing as 9.21V. The volts are transmitted in hex
> in the comment field. I have one of these trackers,
> and it ran for 46 hours transmitting every minute on
> 6 AA cells. The tracker will run down to around 4V
> Steve Daniels
> Torbay Freecycle Moderator
> From: aprsisce at yahoogroups.com
> [mailto:aprsisce at yahoogroups.com] On Behalf Of Lynn
> W Deffenbaugh (Mr)
> Sent: 24 March 2012 17:02
> To: aprsisce at yahoogroups.com
> Subject: Re: [aprsisce] Transatlantic balloon
> We have no idea if you're receiving KD2AUC-1
> direct. If you're inside the off-center black
> circle, then you're within the theoretical RF
> footprint of the balloon.
> Do you have an RF interface configured?
> Have you disabled messaging and/or a bunch of other
> things? (I tried sending a query message and
> received no answer nor ack to a test message)
> Your raw packets at http://aprs.fi/?c=raw&call=VE9MB
> seem to indicate that you don't keep your station
> up 24x7 or you don't have a very reliable
> Internet/APRS-IS connection.
> I'm also not seeing any DX status reports, but I
> don't remember if they are on or off in a default
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows
> Mobile and Win32
> On 3/24/2012 12:46 PM, Murry B wrote:
> Curious about the balloon project guys.
> I am, getting KD2AUC-1 direct here is that it?
> On 3/24/2012 11:36 AM, Colin M0XSD wrote:
> From the Web Page:
> 30 meter 10.14661 MHz 05, 25, 45 every hour
> 40 meter 7.10241 MHz 10, 30, 50 every hour
> CW Morse Code with Latitude, Longitude, Altitude and
> Battery Voltage
> I agree with you Bob, not the most user friendly
> site for finding out specific info.
> On 24/03/2012 13:11, Bob Bruninga wrote:
> > The Project Blue Horizon team is attempting to
> > current Amateur Radio
> > high-altitude balloon record for duration
> > www.projectbluehorizon.com
> Im surprised at the lack of information on that
> site. But glad to see it is up. I am seeing it
> here in MD. It is out off the tip of long island
> now at 9 AM.
> But I have heard nothing on HF. Are those
> published freqs the carrier or dial freqs? Is it
> CW or packet?
> Bob, WB4aPR
> Your email settings: Individual Email|Traditional
> Change settings via the Web (Yahoo! ID required)
> Change settings via email: Switch delivery to Daily
> Digest | Switch to Fully Featured
Sent via AMSAT-BB at amsat.org. 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
More information about the AMSAT-BB