Telemetry for a newbie
Hi all,
My Gulf antenna arrived last week and togther with my recently aquired FT-736 I should be up and running within the month.
My initial reason for building my satellite station was to receive and decode telemetry from the sats, hoping to monitor their condition over a period of time. I realise that some transmit TLM via morse, some via AX25, and some via 96K packet.
What would be the best sat to start with, especially AX25? - Does AO51 send TLM all the time or only over the USA? What resource is the best for reading? Does the F&-736 need modifying for high speed packet reception?
Many thanks for any help.
Peter G8KEK AMSAT-UK 6897
Peter,
AO-51 data is not limited to the US normally, but is sometimes off due to the operating mode. One of the AO-51 pages gives a URL for the TLM program, as well as some other useful information:
http://www.amsat.org/amsat-new/echo/
Here is a page which includes info on modifying the FT-736 for 9600 baud:
http://www.amsat.org/amsat/articles/w6shp/rxtxmods.html
I am certain you will get some good recommendations for starter satellites, but satellite status pages will give you some idea what is available:
http://www.amsat.org/amsat-new/satellites/status.php
73s,
Alan WA4SCA
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Peter Wilson Sent: Saturday, March 06, 2010 4:39 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Telemetry for a newbie
Hi all,
My Gulf antenna arrived last week and togther with my recently aquired FT-736 I should be up and running within the month.
My initial reason for building my satellite station was to receive and decode telemetry from the sats, hoping to monitor their condition over a period of time. I realise that some transmit TLM via morse, some via AX25, and some via 96K packet.
What would be the best sat to start with, especially AX25? - Does AO51 send TLM all the time or only over the USA? What resource is the best for reading? Does the F&-736 need modifying for high speed packet reception?
Many thanks for any help.
Peter G8KEK AMSAT-UK 6897 _______________________________________________ Sent via AMSAT-BB@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
On Sat, March 6, 2010 23:39, Peter Wilson wrote:
Hi all,
Hi Peter,
My Gulf antenna arrived last week and togther with my recently aquired FT-736 I should be up and running within the month.
When you have some experience with your Gulf Alpha I hope to hear how it is doing. I really love the design and the way they are build but have no idea how the perform.
My initial reason for building my satellite station was to receive and decode telemetry from the sats, hoping to monitor their condition over a period of time. I realise that some transmit TLM via morse, some via AX25, and some via 96K packet.
I decode also a lot of telemetry from the following sats:
DO-64: Via RASCAL that can be downloaded via there website www.delfic3.nl FO-29: Morse HO-68: Morse RS-30: Morse RS-38: Morse etc etc
Only the sats that use 9k6 are out of my league but that will change in the next couple of months
What would be the best sat to start with, especially AX25? - Does AO51 send TLM all the time or only over the USA? What resource is the best for reading? Does the F&-736 need modifying for high speed packet reception?
For more detail on decoding with the FT-736 look at the website from dk3wn (www.dk3wn.info)
Many thanks for any help.
Peter G8KEK
73 Jan PE0SAT
Hi Peter,
Here is a short overview what you can actually hear if you are interested in to collect telemetry:
OSCAR IO-26 1k2 BPSK, sporadic 5 bursts Fuji OSCAR FO-29 CW AMRAD OSCAR AO-27 1k2 AFSK scheduled GURWIN OSCAR GO-32 9k6 FSK 1 burst every 30 sec (weak) NavSat OSCAR 44 1k2 AFSK only in sunlight 1 burst every 1 min AMSAT OSCAR-E AO-51 9k6 FSK scheduled KKS-1 CW STARS (Mother) CW PRISM CW HOPE OSCAR HO-68 CW CubeSat OSCAR CO-57 (XI-IV) CW CubeSat OSCAR CO-58 (XI-V) CW CUBESAT OSCAR CO-55 (CUTE-I) CW CUBESAT OSCAR CO-65 (CUTE1.7+APD II) CW COMPASS-1 CW beacon every 4 min SEEDS CW DELFI-C3 1k2 BPSK only in sunlight SwissCube CW RS-22 CW RS-30 CW GeneSat-1 1k2 AFSK
You can see - it's the best way to start with CW satellites. The most of them are sending telemetry continuously.
73, Mike DK3WN
-----Ursprüngliche Nachricht----- Von: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] Im Auftrag von Peter Wilson Gesendet: Samstag, 6. März 2010 23:39 An: amsat-bb@amsat.org Betreff: [amsat-bb] Telemetry for a newbie
Hi all,
My Gulf antenna arrived last week and togther with my recently aquired FT-736 I should be up and running within the month.
My initial reason for building my satellite station was to receive and decode telemetry from the sats, hoping to monitor their condition over a period of time. I realise that some transmit TLM via morse, some via AX25, and some via 96K packet.
What would be the best sat to start with, especially AX25? - Does AO51 send TLM all the time or only over the USA? What resource is the best for reading? Does the F&-736 need modifying for high speed packet reception?
Many thanks for any help.
Peter G8KEK AMSAT-UK 6897 _______________________________________________ Sent via AMSAT-BB@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
participants (4)
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Alan P. Biddle
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Mike Rupprecht
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PE0SAT
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Peter Wilson