[amsat-bb] Re: Transatlantic balloon attempt

[g0mrf at aol.com]

 Hi Bob.

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.

David G0MRF

 

 

-----Original Message-----
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... 
http://aprs.fi/KD2AUC-1

Bob, WB4APR


---- 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
>
>   G6UIM
>
>   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
>   attempt
>
>
>
>   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
>   installation.
>
>   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?
>   VE9MB
>
>   On 3/24/2012 11:36 AM, Colin M0XSD wrote:
>
>
>
>   From the Web Page:
>   http://www.projectbluehorizon.com/#input
>
>   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.
>
>   73,
>   Colin
>
>   On 24/03/2012 13:11, Bob Bruninga wrote:
>
>
>
>     > The Project Blue Horizon team is attempting to
>     break
>     > current Amateur Radio
>     > high-altitude balloon record for duration
>
>     n
>     > 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
>
>
>
>
>
>
>
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