August 2007 - AMSAT-BB - mailman.amsat.org

I: SO-50 5 kHz up with downlink
by Francesco Grappi 20 Aug '07

20 Aug '07

Hi Ib, Thank you very much for this informations about So-50. In fact this evening during that pass, I had some problems to listen my own downlink on right way. Thank's and 73" Francesco IW4DVZ -----Messaggio originale----- Da: amsat-bb-bounces(a)amsat.org [mailto:[email protected]] Per conto di OZ1MY Inviato: lunedì 20 agosto 2007 20.47 A: AMSAT-BB Oggetto: [amsat-bb] SO-50 5 kHz up with downlink Hi, SO-50 has changed frequency 5 kHz up during the pass with AOS at 1830 UTC here from Copenhagen. It did the same last week, but I do not know if it has been like that since last week since I have been away. I use two different lines in the doppler file in SatPC32 to take that into account. SO-50,436790.50,145849,FM,FM,NOR,0,0 SO-50,436795.50,145849,FM,FM,NOR,0,0 On this pass I used the lower one to get the downlink frequency OK. 73 OZ1MY Ib _______________________________________________ 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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SO-50 5 kHz up with downlink
by OZ1MY 20 Aug '07

20 Aug '07

Hi, SO-50 has changed frequency 5 kHz up during the pass with AOS at 1830 UTC here from Copenhagen. It did the same last week, but I do not know if it has been like that since last week since I have been away. I use two different lines in the doppler file in SatPC32 to take that into account. SO-50,436790.50,145849,FM,FM,NOR,0,0 SO-50,436795.50,145849,FM,FM,NOR,0,0 On this pass I used the lower one to get the downlink frequency OK. 73 OZ1MY Ib

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DL28 !!!!!!!!!!!!!
by Alvaro de Leon Romo 20 Aug '07

20 Aug '07

I talked with Bernardo XE2HWB by cel and he will try to be in DL28 this afternoon, Monday 20th, in the AO27 west pass. If he canot be will try again in next 2 night passes on AO51... Good luck to all Al XE2AT _________________________________________________________________ Windows Live Spaces en Prodigy/MSN Spaces: Crea tu propio espacio. http://spaces.live.com

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Re: ISS APRS Emergency traffic: question for G6XCJ
by Bob Bruninga 20 Aug '07

20 Aug '07

> From his QRZ bio (roughly translated by Google): > > "At this time I conducting the experiments technical > with APRS and the reaction of S.O.S in APRS ... > I favour the word of S.O.S not Emergency. > Us summers in EU/CE not America." I dont think he understands that the "EMERGENCY" that is decoded when a D7 or D700 or other Mic-E device sends the "EMERGENCY" position comment is not an on-air text. The position "comment" in these radios is encoded in only 3 bits of the position report. There are only 8 such pre-defined codings. So to change the display of the emergency bits "111" from "EMERGENCY" to "S.O.S." would require a recall of tens of thousands of radios and APRS software to change the coding. The Mic-E format used by the Kenwoods is highly compressed. That is why it only takes 110ms to send an APRS report from them. This was so that the tiny burst could be encoded on the tail-end of a voice transmission and hardly be noticed. Though few people ever use this mode. Sending out an EMERGENCY coding for his test is never a good idea on any communicatinos system. Bob, WB4APR

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FO-29 CW status 20 Aug
by Mineo Wakita 20 Aug '07

20 Aug '07

FO-29 435.797 MHz, CW 05:57-06:13 UTC, 20 Aug 2007 14:57-15:13 JST, 20 Aug 2007 Max ele 20 deg HI HI 22 AA 88 D1 8F 98 05 25 00 24 00 00 6D 62 9F A2 B1 70 BC BB B7 B6 B7 Main Relay ON : DCM ON SRAM OFF : Packet OFF JTA ON : JTD OFF GAS OFF : SAS OFF : UVC ON UVC Level 1 : PCU Mode MANU PCU Level 3 : Battery Mode FULL Battery Logic TRIC : Digitalker Mode OFF : UVC ACT/PAS PAS CPU RUN/RESET RUN : Spin Period 8356.0 [msec] Sun Angle 72.5 [deg] GAS-Z 0.0 [nT] GAS-X 0.0 [nT] Solar Panel Current 1068.6 [mA] Battery Current -79.2 [mA] Battery Voltage 17.1 [V] Battery Middle Voltage 7.8 [V] Bus Voltage 17.4 [V] Analog Tx Power 629.9 [mW] Structure Temp. 1 8.9 [C] Structure Temp. 2 9.3 [C] Structure Temp. 3 10.8 [C] Structure Temp. 4 11.2 [C] Battery Cell Temp. 10.8 [C] de JE9PEL, Mineo Wakita

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integration of W0LMD Satellite Tracker Mini + linux + g-5500 + ft-847
by Eric Fort 20 Aug '07

20 Aug '07

I will be acquiring a g5500 rotor this week and possibly a "W0LMD Satellite Tracker Mini". I'd like to automate these items and my ft-847 using the linux based computer that already controls the rest of the station. Predict looks like a good choice for tracking software but how do I get everything to work together? how do I Integrate these pieces? Eventually I hope this integration will provide a satgate and remote base for a local radio linking group. Thanks, Eric kg6kqt

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Anyone using the Linux FODTrack driver?
by Jim Shorney 20 Aug '07

20 Aug '07

I have some questions. If you can help, please email me off-list. TIA -Jim -- Ham Radio NU0C TR7/RV7, TR6/RV6, T4XC/R4C, L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/

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Logging with an Arrow
by WB2LLP 20 Aug '07

20 Aug '07

The other day I made my first contacts using my IC-W32A and my "Cheap Yagii Arrow" antenna. Like many before me I found paper logging to be impossible. There have been many clever solutions to this problem using a recorder documented, but I can not find any reference to them. Is there someone with a better memory, or filing system, who could point me to some references. TNX es 73 de WB2LLP

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ISS APRS Emergency traffic: question for G6XCJ
by Henk, PA3GUO 20 Aug '07

20 Aug '07

Looking at www.ariss.net I see: 02:01:22:50 : G6XCJ]CQ,RS0ISS-4*,OI94SG,qAr,DF5FF-10:EMERGENCY TX PLSE RSVP +447877482840 GPS LOC TRUE. 145.225Mhz (CTCSS:100hz monitored) Two questions for G6XCJ: 1) what uplink freq. did you use ? 2) assuming this was a mistake, do you expect in real cases we call that number ? I tried that number, and I was asked to hang up by a robot voice. Seems you cannot call that number from outside the UK, so you may want to review if that number is usefull for this purpose. Thanks ! Henk, PA3GUO

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Re: Logging with an Arrow
by Bruce 20 Aug '07

20 Aug '07

The way I log with my arrow is to first listen to some of the pass and write down the calls I hear. Then I jump in. If I get someone either by calling them or them calling me, I put a check mark next to their call. If I get a call I had not written down, I quickly jot it down. You do not need any further information from them. Grid squares can be retrieved from QRZ or your favorite database. The times are irrelevant. You can simply enter the start of the pass for all your contacts. As they will be within 15 minutes of the exact time who cares if you are exact to the minute. Also, the arrl logbook of the world gives you a 1 hour window (if I remember correctly) for the match. it is not to hard. I use an icom w32a, arrow, palm pilot to track pass and speaker mic. My fingers are long enough to hold the arrow next to my palm, the radio on top and the palm pilot on top of that. It leaves my other hand free for the speaker mic. I drop it when I have to write something and grab it up when ready to talk again. Velcro straps can be used to wrap everything up if you need to. 73...bruce

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