Archive - 2015 - Forum topic
December 30th
13.35 to 13.43 pass by London data signal shorter period 13.37 to 13.40 Dec 30th 15
The pass to from the NW to SE was weaker and more noisy for shorter period of 13.37 to 13.40 hours on 145.825 possibly due to position shading of vertical ground antenna compared to earlier clear pass in morning. Again the approaching ISS had poorer signal than departing ISS.
73's for 2016
M0TCE
Direct overpass of London was poorer data reception than pass to the South of London
From 11.58 am to 12.08 am there was squelch generation with the packets and the packets of data where undetectable. Frequency 145.825 FM 30th December 2015.
From 11.59.30 some data detection in combined squelch noise and data content increasingly detected. The evidence of data content was to 12.03.45 but not as clear as earlier in the morning when transit was to the South of London.
Whilst evidence of data transmission received as squlech noise continued to 12.08 the periods became shorter.
Direct overpass of London was poorer data reception than pass to the South of London
From 11.58 am to 12.08 there was squelch generation with the packets and the packets of data where undetectable. Frequency 145.825 FM 30th December 2015.
From 11.59.30 some data detection in combined squelch noise and data content increasingly detected. The evidence of data content was to 12.03.45 but not as clear as earlier in the morning when transit was to the South of London.
Whilst evidence of data transmission received as squlech noise continued to 12.08 the periods became shorter.
The better data was towards 12.02 to 12.03. This is was on passing the radio antenna site.
Direct overpass of London was poorer data reception than pass to the South of London
From 11.58 am to 12.08 there was squelch generation with the packets and the packets of data where undetectable. Frequency 145.825 FM 30th December 2015.
From 11.59.30 some data detection in combined squelch noise and data content increasingly detected. The evidence of data content was to 12.03.45 but not as clear as earlier in the morning when transit was to the South of London.
Whilst evidence of data transmission received as squlech noise continued to 12.08 the periods became shorter.
The better data was towards 12.02 to 12.03. This is was on passing the radio antenna site.
30th Dec 2015 Packets clear London
145.825 FM clear signals 8:48 to 8:52 and squelch with signal undetected one minute either side of the 4 minute window.
Detection for first time in 2015. No signal on 145.800 downlink detected only on 145.825 FM.
December 22nd
SSTV event now targeting mid January. More details as the become available from the Russian team.
Looks like the event is going to be delayed:
PD120 SSTV Test Recording to Use in Preparation for Upcoming ISS SSTV Events
In preparation for upcoming ISS SSTV events you can use this recording
to make sure your SSTV app/software can properly decode SSTV
transmission like the ones the ISS will be sending, which use the
PD120 mode. It's available on YouTube, SoundCloud and as an mp3
download via Dropbox:
https://soundcloud.com/spacecomms/pd120-sstv-test-recording
https://www.dropbox.com/s/gii8rytqrfch8q2/Space_Comms_PD120_SSTV_Test_Re...
For more information on upcoming ISS SSTV events see this webpage:
December 21st
All Events ISS 2015-2016 ARISS - SSTV -HamTV by GB1ISS !
here all scheduled events on ISS by GB1ISS Tim Peake
here:
http://rodolfo-parisio.jimdo.com/nuovi-articoli-2015-bis/
both labhuage in the PDF english e in italiano
73 de Rudy - IW2BSF [ISS Stay Tuned ]
NEXT 26 - 27 december SSTV eventin PD120 mode !
in the next saturday and sunday 26-27 december a new SSTV in the mode PD120...for more photos in a short transmit !
the SSTV fot celebrate te 15 anniversary of the fist ham-radio contact by ISS space station.
more info & photos and the story of the ham-radio on iss in my web site (in italian language)
73 de Rudy - IW2BSF
here:
NEXT 26 - 27 december SSTV event !
in the next saturday and sunday 26-27 december a new SSTV in the mode PD120...for more photos in a short transmit !
the SSTV fot celebrate te 15 anniversary of the fist ham-radio contact by ISS space station.
more info & photos and the story of the ham-radio on iss in my web site (in italian language)
73 de Rudy - IW2BSF
here: