April 2008 - AMSAT-BB - mailman.amsat.org

Re: Delfi-C3 HEARD, strong signal over the Delfi-C3 groundstation...
by GW1FKY＠aol.com 28 Apr '08

28 Apr '08

Hi Wouter, Glad to hear the good news - Also copied over here in the UK - South Wales - IO81EM. As with my report on Cute 1 , I was only using a THD-7 with its helical antenna. Regret although this I had been prepared to make a digital recording, I had some local interference from somewhere nearby however which badly effected the quality etc. I will try again later this evening and also perhaps use an Arrow antenna. Thanks again and further congratulations on the satellite now being confirmed as operational. Regards Ken Eaton GW1FKY Amsat -UK Amsat NA

1 0

Re: DelfiC3 heard
by G0MRF＠aol.com 28 Apr '08

28 Apr '08

Hi all. Hooray! Can I recommend Spectran as a good piece of software for recording and displaying weak signals. The screen shows frequency and time and signal level so you can very easily adjust the tuning for 1600Hz required for the RASCAL decoding software. I used it to identfy Suitsat 1 and estimate its ERP. Set the sample rate for 44kHz to get the highest bandwidth and quality. _www.weaksignals.com_ (http://www.weaksignals.com/) Thanks David - Sadly at work and not near the radio..... In a message dated 28/04/2008 12:29:29 GMT Standard Time, rob_g8ate(a)hotmail.com writes: Hi All I managed to hear Delfi-c3b beacon this afternoon using spacetrack object A #32783 the Sat was running approx 1min early ,so far as I could tell ,the beacon was centred on 145.930+- doppler, at los the recorded frequency on my ft847 was 145.927.6 I was unable to decode the telemetry due to a shortcoming in my doppler control progarm in that it tunes in 10hz steps which is to high but will try and rectify this as soon as I can.At times the signal was s7 but with very deep fading using a 6 el quad with horiz pol.Regards Robert G8ATE

1 0

Congrats to ISRO
by Prathap Kumar 28 Apr '08

28 Apr '08

We the members of Amsat India and the Indian Ham fraternity congratulate ISRO for the successful 10 pack satellite launch via the PSLV C9 this morning. We would also congratulate the DELFI team, CUTE team and the SEEDS team for their amateur radio satellites which are now placed in orbit. Looking forward to hearing the first telemetry in a few minutes which ofcourse is a low westrly pass for us. VU3TYG and myself would try to monitor and record. Looking forward to a the new exciting sats. Best 73 Pop VU2POP Secy Amsat India

3 2

Delfi-C3 received in Belgium
by ON5QI Claude 28 Apr '08

28 Apr '08

Delfi-C3 received in Belgium during the third pass between 11:49 and 11:57 utc on 145.930 MHz. 194 packets received, decoded with RASCAL and sent to the command station. Signals were loud and decodable during 90 % of the pass. Congratulations to the team. Long life to Delfi-C3. 73 Claude ON5QI

1 0

Delfi-c3 heard in io92jp
by Robert Turlington 28 Apr '08

28 Apr '08

Hi All I managed to hear Delfi-c3b beacon this afternoon using spacetrack object A #32783 the Sat was running approx 1min early ,so far as I could tell ,the beacon was centred on 145.930+- doppler, at los the recorded frequency on my ft847 was 145.927.6 I was unable to decode the telemetry due to a shortcoming in my doppler control progarm in that it tunes in 10hz steps which is to high but will try and rectify this as soon as I can.At times the signal was s7 but with very deep fading using a 6 el quad with horiz pol.Regards Robert G8ATE _________________________________________________________________ Search and win with BigSnapSearch.com http://www.bigsnapsearch.com

1 0

Re: TS-2000X question
by Henk, PA3GUO 28 Apr '08

28 Apr '08

Domenico, Just tested this with Rob, PE1ITR. Myself using the TS2000X (TX), Rob receiving. Compared 144 FM vs 1244 FM/USB: quality was the same. Henk, PA3GUO ------------------------------------------------------------- Hi All, I got advise that the quality of modulation on 23 cm for the TS-2000X in SSB is not so good as in 2 meters and 70 cm. Any experience ? Tanks and 73" de i8CVS Domenico

2 1

CUTE1.7 and SEEDS
by Miroslav Kasal 28 Apr '08

28 Apr '08

Both the CUTE1.7 (437.275) and the SEEDS (437.485) CW signals were monitored in Brno JN85HF during pass between 10.12 and 10.23. 73, Mirek OK2AQK

1 0

Re: CubeSats launch congratulation!
by GW1FKY＠aol.com 28 Apr '08

28 Apr '08

Hi all. I have just copied Cute -1.7 over here in the UK (Wales - IO81EM) Using Kenwood THD-7 and just its helical antenna - copied CW on a frequency 437 .275 Mhz +/- doppler. The over head pass N//S was at approx. 1012 hrs Zulu and an max elevation about 76 degrees. Sorry I did not have any device with me to make a recording. Now looking out for a possible pass of Delfi C-3. Ken Eaton GW1FKY Amsat -UK Amsat NA

1 0

ISRO launch
by vu3sxegmail 28 Apr '08

28 Apr '08

Hello All ISRO making history, congrats to all involved for the success of the launch on 10 satellites, fantastic feat. Does anyone know if any satellites can be tracked by Radio Amateurs, if so which frequencies, and satellites. Regards, Sundeep Shah. Vu3sxe / +91 94484 26365

1 0

Delfi-C3 is ALIVE!!!!
by Wouter Jan Ubbels 28 Apr '08

28 Apr '08

Hi all, Delfi-C3 was heard by Rick Mann, while she was over the US. From the wav file Rick sent us, we can deduce that she is tranmitting on the backup frequency (145.930) in science mode. This is very very good news, we are all extremely excited. We have not been able to decode the wav file yet since it is rather noisy, but the satellite is definitely there. Note that Delfi-C3 decides by herself on which freq the transmitter comes up, so be sure to check both 145.870MHz and 145.930MHz. Any wav files, or if possible even decoded TLM using RASCAL or a KISS file is highly appreciated! 73 on behalf of an excited Delfi-C3 team Wouter Jan Ubbels PE4WJ

2 1