Hello to all.
Yesterday i posted to say that i heard the crossband repeater active some other hams pointed out to me, that the ISS was active on packet at the same time.
i also noticed that my signal report was removed from issfanclub.comovernight.
There was another late night pass that i could prob have worked, but it was during my sleep time :) so i didnt try then.
I have just tried again now, and found it to be active. 0640hr utc pass over VK1.
so what is the story?? i could hear myself.......... but only when the ISS came into view... so it wasnt an operator error.
I understand that this mode is experimental, with 145.99 uplink and 437.800 downlink. This mode seems nice, as i dont need high power or big antennas to get in.
Can the equipment on board support both modes at the same time? And is anyone interested in trying a qso with me on future passes? next pass is low elevation for me (approx 15deg) so should be workable for a little bit. due at 0820hrs UTC (thereabouts)
nothing much else usable till tommorrow, and i read Kenneth's notes about the EVA, so it might be off soon anyway.
thank you all in advance. Darren VK1HFC
Hi Darren
The fact that you have been able to repeat your findings prove that you are clearly hearing something and interestingly today the data stream from the packet shows a break between 06.08utc and 07.38utc which clearly spans the time you report.
Yesterday packet was showing as active with a couple of VK stations passing data at the same time as your report. If the ISS equipment reports remain correct then they cannot operate both modes at the same time.
On the IFC site you have said that you used an uplink frequency of 145.850MHz, is that a mistype? The stated ISS uplink will be 145.990 which even with Doppler is only across the range of 145.897 - 145.993, so 145.850 is well outside that range.
It's always difficult to be the first to post on a subject but don't worry about that.
Keep listening and report what you hear.
I'm sure Kenneth or Frank will let us know in due course what has been going on.
BTW. 1200bps packet active over UK / Europe at 09.17utc. 145.825MHz.
Regards
David G8OQW
-----Original Message----- From: sarex-bounces@AMSAT.Org [mailto:sarex-bounces@AMSAT.Org] On Behalf Of Darren VK1HFC Sent: 22 December 2008 07:07 To: sarex Subject: [sarex] ISS cross band
Hello to all.
Yesterday i posted to say that i heard the crossband repeater active some other hams pointed out to me, that the ISS was active on packet at the same time.
i also noticed that my signal report was removed from issfanclub.comovernight.
There was another late night pass that i could prob have worked, but it was during my sleep time :) so i didnt try then.
I have just tried again now, and found it to be active. 0640hr utc pass over VK1.
so what is the story?? i could hear myself.......... but only when the ISS came into view... so it wasnt an operator error.
I understand that this mode is experimental, with 145.99 uplink and 437.800 downlink. This mode seems nice, as i dont need high power or big antennas to get in.
Can the equipment on board support both modes at the same time? And is anyone interested in trying a qso with me on future passes? next pass is low elevation for me (approx 15deg) so should be workable for a little bit. due at 0820hrs UTC (thereabouts)
nothing much else usable till tommorrow, and i read Kenneth's notes about the EVA, so it might be off soon anyway.
thank you all in advance. Darren VK1HFC ---- Sent via sarex@amsat.org. Opinions expressed are those of the author. Not an AMSAT member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/sarex
Darren,
The ISS cross-band is usually 145.800 MHz down and 437.800 MHz up. Of course that doesn't meant that it can't be something else.
I note however, that 145.990 MHz x 3 is 437.970 MHz. Could you be hearing the 3rd harmonic of your own TX?
Sil
Darren VK1HFC wrote:
Hello to all.
Yesterday i posted to say that i heard the crossband repeater active some other hams pointed out to me, that the ISS was active on packet at the same time.
i also noticed that my signal report was removed from issfanclub.comovernight.
There was another late night pass that i could prob have worked, but it was during my sleep time :) so i didnt try then.
I have just tried again now, and found it to be active. 0640hr utc pass over VK1.
so what is the story?? i could hear myself.......... but only when the ISS came into view... so it wasnt an operator error.
I understand that this mode is experimental, with 145.99 uplink and 437.800 downlink. This mode seems nice, as i dont need high power or big antennas to get in.
Can the equipment on board support both modes at the same time? And is anyone interested in trying a qso with me on future passes? next pass is low elevation for me (approx 15deg) so should be workable for a little bit. due at 0820hrs UTC (thereabouts)
nothing much else usable till tommorrow, and i read Kenneth's notes about the EVA, so it might be off soon anyway.
thank you all in advance. Darren VK1HFC
Sent via sarex@amsat.org. Opinions expressed are those of the author. Not an AMSAT member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/sarex
Internal Virus Database is out of date. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.9.19/1854 - Release Date: 12/17/2008 7:21 PM
Darren,
I owe you an apology. I missed the note on the AMSAT web-site that suggests that this mode will be operating prior to Christmas.
My mistake.
I should read more before I open my figurative mouth (or my real one for that matter).
I'm sorry.
Sil
ZL2CIA
Sil - ZL2CIA wrote:
Darren,
The ISS cross-band is usually 145.800 MHz down and 437.800 MHz up. Of course that doesn't meant that it can't be something else.
I note however, that 145.990 MHz x 3 is 437.970 MHz. Could you be hearing the 3rd harmonic of your own TX?
Sil
Darren VK1HFC wrote:
Hello to all.
Yesterday i posted to say that i heard the crossband repeater active some other hams pointed out to me, that the ISS was active on packet at the same time.
i also noticed that my signal report was removed from issfanclub.comovernight.
There was another late night pass that i could prob have worked, but it was during my sleep time :) so i didnt try then.
I have just tried again now, and found it to be active. 0640hr utc pass over VK1.
so what is the story?? i could hear myself.......... but only when the ISS came into view... so it wasnt an operator error.
I understand that this mode is experimental, with 145.99 uplink and 437.800 downlink. This mode seems nice, as i dont need high power or big antennas to get in.
Can the equipment on board support both modes at the same time? And is anyone interested in trying a qso with me on future passes? next pass is low elevation for me (approx 15deg) so should be workable for a little bit. due at 0820hrs UTC (thereabouts)
nothing much else usable till tommorrow, and i read Kenneth's notes about the EVA, so it might be off soon anyway.
thank you all in advance. Darren VK1HFC
Sent via sarex@amsat.org. Opinions expressed are those of the author. Not an AMSAT member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/sarex
Internal Virus Database is out of date. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.9.19/1854 - Release Date: 12/17/2008 7:21 PM
Sent via sarex@amsat.org. Opinions expressed are those of the author. Not an AMSAT member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/sarex
Internal Virus Database is out of date. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.9.19/1854 - Release Date: 12/17/2008 7:21 PM
Hi,
Any final updates on the ISS mode LV operation? Still on for the 28th, and a guestimate on the start time?
Alan WA4SCA
My best guess would be late in the crew day (after 1900 UTC?) but still on. Proved to be a bit challenigng to get the V/u configuration operational (but it is up now). We might encounter some more issues with this other non standard mode. Wish us luck.
Kenneth - N5VHO
________________________________
From: sarex-bounces@AMSAT.Org on behalf of Alan P. Biddle Sent: Sat 12/27/2008 2:42 PM To: 'sarex' Subject: [sarex] ISS LV ops
Hi,
Any final updates on the ISS mode LV operation? Still on for the 28th, and a guestimate on the start time?
Alan WA4SCA
---- Sent via sarex@amsat.org. Opinions expressed are those of the author. Not an AMSAT member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/sarex
participants (5)
-
Alan P. Biddle -
Darren VK1HFC -
David Barber -
Ransom, Kenneth G. (JSC-OC)[BAR] -
Sil - ZL2CIA