On the 0340 UTC pass, I again could see someone in the passband, but it showed as 10 traces rather than one. At the end of the transmission, I heard a CW ID. So I emailed the operator.
Turns out, he's transmitting PropNet PSK beacon signal, and it's falling in the passband of NO-84 uplink! Now it makes sense. And of course I could not decode his PSK31 signal, because it's sending data aligned with the PropNet algorithm!
I still can't see my signal on the downlink. Maybe I need to try a different antenna..
Mark Lunday, WD4ELG Greensboro, NC FM06be wd4elg@arrl.net http://wd4elg.blogspot.com
that doesn't answer the multiple traces tho.
Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 8/16/2016 11:45 PM, Mark Lunday wrote:
On the 0340 UTC pass, I again could see someone in the passband, but it showed as 10 traces rather than one. At the end of the transmission, I heard a CW ID. So I emailed the operator.
Turns out, he's transmitting PropNet PSK beacon signal, and it's falling in the passband of NO-84 uplink! Now it makes sense. And of course I could not decode his PSK31 signal, because it's sending data aligned with the PropNet algorithm!
I still can't see my signal on the downlink. Maybe I need to try a different antenna..
Mark Lunday, WD4ELG Greensboro, NC FM06be wd4elg@arrl.net http://wd4elg.blogspot.com
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
I think either he is overmodulating his AFSK or the signal is overdriving NO-84 receiver.
Mark Lunday, WD4ELG Greensboro, NC FM06be wd4elg@arrl.net http://wd4elg.blogspot.com
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Joe Sent: Wednesday, August 17, 2016 1:56 AM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] NO-84 mystery solved
that doesn't answer the multiple traces tho.
Joe WB9SBD
Did you tell him what was happening? I honestly can hardly believe that he doesn't have something drastically wrong. Because guys that run that beacon program rarely run more than 5 watts MAX. most are like 500 milliwatts 1/2 a watt. Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 8/17/2016 9:55 AM, Mark Lunday wrote:
I think either he is overmodulating his AFSK or the signal is overdriving NO-84 receiver.
Mark Lunday, WD4ELG Greensboro, NC FM06be wd4elg@arrl.net http://wd4elg.blogspot.com
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Joe Sent: Wednesday, August 17, 2016 1:56 AM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] NO-84 mystery solved
that doesn't answer the multiple traces tho.
Joe WB9SBD
Could it be that someone is experimenting with digital voice using FreeDV ? www.freedv.org - Howie AB2S
To: mlunday@nc.rr.com; amsat-bb@amsat.org From: nss@mwt.net Date: Wed, 17 Aug 2016 10:03:32 -0500 Subject: Re: [amsat-bb] NO-84 mystery solved
Did you tell him what was happening? I honestly can hardly believe that he doesn't have something drastically wrong. Because guys that run that beacon program rarely run more than 5 watts MAX. most are like 500 milliwatts 1/2 a watt. Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 8/17/2016 9:55 AM, Mark Lunday wrote:
I think either he is overmodulating his AFSK or the signal is overdriving NO-84 receiver.
Mark Lunday, WD4ELG Greensboro, NC FM06be wd4elg@arrl.net http://wd4elg.blogspot.com
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Joe Sent: Wednesday, August 17, 2016 1:56 AM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] NO-84 mystery solved
that doesn't answer the multiple traces tho.
Joe WB9SBD
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
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Mark Lunday