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

Delfi-c3 Telemetry Capture & Decoding
by Clive Wallis 18 Oct '08

18 Oct '08

Hi, I am trying to get some telemetry from DO-64 while it is in this mode. Unfortunately I missed the the initial period of TLM just after launch, owing to other problems. By the time I had solved these, DO-64 had switched into transponder mode! I've managed to get some packets using my hardware PSK decoder (G3RUH) and PK-88 TNC in KISS mode. However, I can't find any information about the format of the data or any telemetry equations. Where are these details located? I've had less success with RASCAL. It appears to be working, and I get short periods when it locks onto the signal, but no packets received. The indicated frequency seems to vary widely, and sync is often lost when a packet is transmitted. Is the audio clip on the Delfi-C3 website suitable for use as a test signal? I have a better sound card, so I may try that. Any help would be most appreciated. -- 73 Clive G3CWV Hitchin, North Hertfordshire, UK.

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SSTV Algorithms?
by Curt Nixon 18 Oct '08

18 Oct '08

Good Morning All: Is there any visible difference between the several available software sound-card solutions for decoding SSTV? Other than soundcard noise, I expect that the faster the soundcard samples, the better? I've been using MMSTV and really like it. Wanted to also try HRD/DM780 but cant seem to get it to work just yet. Having a great time with ARISS! Thanks, Curt KU8L EN82hi

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More Pics this AM
by Simon (HB9DRV) 18 Oct '08

18 Oct '08

http://www.ham-radio-deluxe.com/SSTV/tabid/85/Default.aspx SSTV working great - no excess carriers etc. Now to take the dogs for a walk before his flies directly over my house in 90 minutes. Simon Brown, HB9DRV www.ham-radio-deluxe.com

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ISS & SATPC32 and IC-910
by Mike McConnell 18 Oct '08

18 Oct '08

Is SATPC32 supposed to switch the IC-910 to the correct VHF TX/RX frequencies (as it does for sats) in mode U/V? If so, how do you do it. I was just playing with the radio and software and it seems to command the RX frequency but the TX frequency isn't correct. I was thinking about trying to talk to the ISS sometime.>Thanks Mike McConnell, Ph.D. W0PD

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ISS SSTV intercepted at FM18 17 Oct 2007
by Robert Morales 17 Oct '08

17 Oct '08

I received a total of 3 SSTV transmissions today (17 Oct 2008) at grid FM18. The transmission at 2031z was mostly clear depicting the Soyuz module with Earth in the background. The other two earlier ones were pretty noisy/ghostly. Received using MMSTV in Robot36 format (auto selected). Gear here: Yaesu FT-857 with 2m/440 Ringo in the attic. image: http://www.facebook.com/photo.php?pid=2023113&l=49f0c&id=734741410 -- R. L. Morales, WP4BQV wp4bqv(a)gmail.com http://journals.aol.com/wp4bqv/RadioIntercepts/ Echolink node# 165727 APRS mobile: WP4BQV-7 "Eschew Obfuscation"

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WD9EWK from Tucson AZ hamfest, Saturday (18 October)
by Patrick STODDARD (WD9EWK/VA7EWK) 17 Oct '08

17 Oct '08

Hi! I will be part of the AMSAT table at the Old Pueblo Radio Club's hamfest in Tucson AZ tomorrow. The hamfest is at the Kino Sports Complex on Ajo Way, east of I-10, in grid DM42me. During the hamfest, I am planning to do several satellite demonstrations as WD9EWK. For AO-51, I hope to have a Scout at the mic to contact other Scouts during those passes. If not, I will try to make contact with Scouts, in keeping with AMSAT's wishes for the AO-51 JOTA configuration this weekend. Besides AO-51, I plan on trying SO-50, FO-29, and VO-52. This will be the first time I will do demonstrations on non-FM satellites with my two FT-817NDs at a hamfest. On FO-29, I tend to end up around 435.850-435.855 MHz on the downlink. For VO-52, I generally work around 145.910-145.915 MHz on the downlink. Of course, if there are stations around these spots already, I will move to another spot on the passbands - probably a little higher - so my non-automated station doesn't QRM others. Since the ISS will be passing by in the morning, I will be listening during those passes. If someone is on the microphone up there making contacts, I will try to make a contact from the hamfest. I will send QSL cards to all stations that make contacts with WD9EWK from the hamfest. No need to send me anything first, if we make a contact tomorrow. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/

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Relay replacement
by Dave Guimont 17 Oct '08

17 Oct '08

Hi Angelo, Very good advice, as usual, Dom... I replaced mine years ago, got mine out of the junk box, and it did not exactly make contact with some of the foil on the board...I just made a jumper from small diameter copper, and it has been up there for years...same thing if some of the traces are missing.. I live fairly near the coast, and have the typical salt water corrosion... 73, Dave, WB6LLO dguimon1(a)san.rr.com Disagree: I learn.... Pulling for P3E...

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FW: Gray Tenn. Hamfest sellout
by Stargate 17 Oct '08

17 Oct '08

Well, life is weird. I'm not going to attend the hamfest tomorrow. Things are up in the air as of now about allot of things. I don't know which direction I am going. Up or down. Left or right. Back or forth. Selling out or not. There is the possibility of some cash soon due to the sell of a house so....... As they say..... "If Mama isn't happy, nobody is" if you catch the way I have drifted. If I do COMMIT to the sellout, I will let you all know for sure. 73's RoD KD0XX -----Original Message----- From: amsat-bb-bounces(a)amsat.org [mailto:amsat-bb-bounces@amsat.org]On Behalf Of R. Chastain Sent: Monday, October 13, 2008 7:21 PM To: Amsat-BB Subject: [amsat-bb] Gray Tenn. Hamfest sellout Hello all, I really HATE to do this but unless something drastic happens this week (IE...hitting the lottery) I am going to sell out of ham radio and electronics in general. I have been collecting satellite gear for the past few years and have not even used most of it. Alot of the items are brand new. ARR Preamps, M2 CP VHF and UHF antenna's, (the BIG one's) Rohn 45 tower parts, ect... The radio's are.. Kenwood TS-790A with 1.2Ghz and IF-232 computer module Yaesu FT-847 Both radio's are in excellent condition (8-9 out of a 10) I also have 3 service monitors and assorted test gear that I will be selling. 2 ea IFR 1000S and 1ea. Cushman CE-50TG I will be attending the Gray Tennessee hamfest, located in northeast Tennessee on the 18th of October. If your wanting to build up a topnotch satellite, or VHF/UHF station, Please come by and visit my table. I don't have a list compiled yet but it will be quite a lot. Thanks and 73's RoD KD0XX _______________________________________________ Sent via AMSAT-BB(a)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

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Re: ISS Pass Today
by Dennis Rogers 17 Oct '08

17 Oct '08

I had know problems hearing all audio here in EL09rk, San Antonio, Tx this morning. W5KWQ, Richard was talking to a group of kids answering there questions from a school. Only could pick up his part of the QSO, but did get him 59+ with an eggbeater (2m/70cm) setup on a TS2000X. 73's ------------------------------- Regards, Dennis, N5VRP n5vrp.satx(a)gmail.com Dstar User / Gateway Admin / D-PRS Provider ARRL Member Cactus-Intertie Member AMSAT Member, President's Club 73's from SATX, EL09rk

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S-Band RADOME
by D. Mynatt 17 Oct '08

17 Oct '08

Any one using an SSB 2.4 GHz. Light Weight RADOME Parabolic Antenna? I'm thinking of using two in a satellite setup. Any one have experience with these units or types of units? Dave Mynatt Program Director ======================== http://sciencecenter.no-ip.org SID ID: S-0258 APRS Tier II Server @ pueblo.aprs2.net:14501 LAT: 38'16.278" N LON: -104'40.537" W Alt: 1460m DM78qd // KA0SWT

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