September 2006 - AMSAT-BB - mailman.amsat.org

Symposium Information - BOFS
by Emily Clarke 18 Jan '07

18 Jan '07

For those of you who are attending the Symposium there is a new feature we are going to try this year called BOFS - Birds Of a Feather Sessions. BOFS are generally free-form meetings that are held after-hours and may be called by anyone wishing to start a discussion group. They have been common at software conferences I've gone to in the past and were very popular. An example of a BOF for the AMSAT Symposium might be to start a discussion about groundstation antennas. I have set aside two rooms (one holding 12 people, another holding 20) beginning at 6pm on Friday evening. The procedure is pretty straightforward: 1) Develop a title for your BOF - say "Homebrew Groundstation Antennas" 2) Estimate the amount of time you would like for your BOF - BOFS usually last 30 minutes or an hour 3) Go to the registration desk and tell someone there that you want to start a BOF. They will give you a flip-chart sized (2 foot by 3 foot) Post-It note and assign you a room and time. 4) Write your title, time and room on the large Post-It note and tack it on the wall outside of the Symposium meeting room. And that's it! 73, Emily --------------------------------- N1DID formerly W0EEC - CM87tm Support Project OSCAR - http://www.projectoscar.net

3 2

Help - Alliance U-110 as an elevation rotator
by Emily Clarke 24 Dec '06

24 Dec '06

I'm mounting an old Alliance U-110 rotator horizontally to use as an elevation rotator, and I have noticed that if it is sitting with the mast clamp on the top everything works very well. If it's flipped with the mast clamps on the bottom (so it can connect to the azimuth mast) it seem stall and jam. I'm not sure if this is normal or just a sign of age but I traced the problem to a small gear under the shaft that "drops" when the rotator is in the clamp-bottom position and then slips over the top of the gear it is supposed to drive. Since many people have used this rotator for elevation in the past, has anyone run into this problem before? If so, did you find a solution for it? 73, Emily --------------------------------- N1DID formerly W0EEC - CM87tm Support Project OSCAR - http://www.projectoscar.net

3 2

How to decode the sound of HITSAT FM on MixW2
by Mineo Wakita 01 Oct '06

01 Oct '06

I was successful in the decode the header of HITSAT FM 437.425MHz packet data. These signals were switched on ONLY in the range of Japan. And these 1k2 AFSK (FM 437.425 MHz) be able to decode by modem of IC FX614, becauce NOT AX.25 (not NRZ-NRZI). I was successful in the decode of the header "JR8YJT" of these FM data by using a soundcard program MixW2 (ver2.17). > JR8YJT#!5020000100927205504,305,366,8;7A,34,388,99,2,5,8C,12D 1. Click_right the volume button on your PC. 2. Click the adjustment of Audio_property. 3. Click the audio tab. 4. Click the volume button of the audio record. 5. Check the button of the monaural mixer. 6. Run MixW2. 7. Mode - RTTY 8. Mode - Mode Settings - Check "Inverted, AFC, and Squelch" 9. Mode - Mode Settings - Input "1800" Hz in TX and RX frequency box 10. Mode - Mode Settings - Input "Single filter" in Demodulator box 11. Mode - Mode Settings - Input "1800" in Shift box and Baud rate box 12. Mode - Mode Settings - Select "ASCII 7" 13. Run Sound_Decoder "sndrec32.exe". 14 Playback "60928hit.wav" in the following URL. 15. http://www.ne.jp/asahi/hamradio/je9pel/hitsat03.htm 16. Then the signals are decoded automatically on MixW2 window. Tnx.> JH4DHX/3 / Mr. Ohtani --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Oct 1, 2006 ---------------------------------------------

2 1

Directive Systems 1.2 antenna for sale
by w7lrd＠comcast.net 30 Sep '06

30 Sep '06

I am selling my Directive Systems 1.2Ghz 12 turn helix. I am redoing my system and the antenna is now surplus. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=001&item=110039356818&rd=1… 73 Bob W7LRD Seattle

1 0

70cm preamp
by Bill Bruno 30 Sep '06

30 Sep '06

On my V/U setup I have a SP7000 70cm preamp. Working FO29(JAS2) my 2 meter signal overloads the preamp, my signal splattering like an adjacent strong station. With preamp off the problem is not there. In testing I found the overload happens in any combination of 70cm 2m frequency pairs. I can eliminate the problem by lowering the tx power, but by doing so I have a hard time copying my own signal. How can I eliminate the 2m sig overloading the preamp while still maintaining adequate power? Antennas m2 436cp30, Gulf Alpha 2m5el, both right hand polarization. I could use some suggestions. Thanks Bill

8 8

LS patch feed [was: L/S antenna redseign]
by John Mock KD6PAG 30 Sep '06

30 Sep '06

W0LMD also has a nice patch feed for 1.2 GHz / 2.4 GHz http://www.ultimatecharger.com/Dish_Feed_SL.html Here are step-by-step pictorial instructions on contructing this patch feed using ordinary hand tools: http://www.qsl.net/kd6pag/LS-patch-feed.html My metalworking skill are such that if i can make one of these things, then you probably can, too. I got my N-connectors locally, but they also do mail order: http://www.halted.com 73's and good luck! -- KD6PAG (Networking Old-Timer, Satellite QRPer) P.S. Still looking for sked with Delaware or South Carolina in mode J-FM.

1 0

L/S antenna redseign
by w7lrd＠comcast.net 30 Sep '06

30 Sep '06

Hello Bob is planning a new L/S redesign. Before I pick up my hack saw I would like some opinions/advice etc. The dish-a 54X48 inch prime star. The feed -a short helix for L & S side by side in line with the fan pattern. I beleieve W0LMD tried co-wound helixes with mixed results. On the same boom is a 2M & 70cm yagi. With all this antenna and counter weight is it too much for my G5400 elevation rotor? Plan "B"- use a actuator similar as described in http://www.qsl.net/sv1bsx/actuator/actuator.html . I have some actuators and a lot of hacksaws and I'm not afraid to use them. With only 10watts and some hardline I feel this dish might be necessary for a HEO on L band, and I might as well use it on S. I also have a 12foot TVRO but that's another story (project) for another day. As always your opinions/advice even ridicule is appreciated. 73 Bob W7LRD Seattle

2 1

Re: L/S antenna redseign
by G0MRF＠aol.com 30 Sep '06

30 Sep '06

In a message dated 30/09/2006 05:12:32 GMT Standard Time, w7lrd(a)comcast.net writes: Hello Bob is planning a new L/S redesign. Before I pick up my hack saw I would like some opinions/advice etc. The dish-a 54X48 inch prime star. The feed -a s hort helix for L & S side by side in line with the fan pattern. Hello Bob. If you mount them side by side, there will be a compromise as there is only one focal point. The concentric feed can be made to work as long as you have some filters to keep the 1.3G signal out of the 2.4G RX. Here is a good page on the topic. _http://www.g3wdg.free-online.co.uk/dual.htm_ (http://www.g3wdg.free-online.co.uk/dual.htm) 73 David G0MRF

1 0

HITSAT 0647 UTC
by Mike Rupprecht 30 Sep '06

30 Sep '06

AOS 0647 UTC Sep 30 (JN49lr) Hit4 c0d7d1e2 Hit1 jr8yjt Hit2 9301546512b Hit3 2b4b4f4a4e49484a Hit4 c0d7d1e2 Hit1 jr8yjt Hit2 9301550452a Hit3 034.. LOS 0654 UTC Date: Sep, 30 Time: 15:46:51 JST HIT2 9301546512b HIT3 2b4b4f4a4e49484a HIT4 c0d7d1e2 Temp +X face : 111,648 °C --> this sensor seems to be faulty Temp -X face : 34,779 °C Temp +Y face : 25,171 °C Temp -Y face : 37,181 °C Temp +Z face : 27,573 °C Temp -Z face : 39,584 °C Temp Transceiver: 41,986 °C Temp Battery : 37,181 °C Prim. Battery : 7,500 V Sec. Battery : 8,398 V 5 Volts : 4,951 V 5.5 Volts : 5,353 V RSSI : 0,840 V 73, Mike DK3WN

1 0

HITSAT 0514 UTC
by Mike Rupprecht 30 Sep '06

30 Sep '06

AOS 0514 UTC Sep 30 (JN49lr) Hit1 jr8yjt Hit2 9301412412c Hit3 0e4d4e484e4c4a4a Hit4 c1d7d2e2 Hit1 jr8yjt Hit2 93014163433 Hit3 334b514b4e4c484b Hit4 c1d6d1e2 LOS 0522 UTC Date: Sep, 30 Time: 14:16:34 JST HIT2 93014163433 HIT3 334b514b4e4c484b HIT4 c1d6d1e2 Temp +X face : 92,431 °C ??? Temp -X face : 34,779 °C Temp +Y face : 20,366 °C Temp -Y face : 34,779 °C Temp +Z face : 27,573 °C Temp -Z face : 32,377 °C Temp Transceiver: 41,986 °C Temp Battery : 34,779 °C Prim. Battery : 7,539 V Sec. Battery : 8,359 V 5 Volts : 4,951 V 5.5 Volts : 5,353 V RSSI : 0,996 V 73, Mike DK3WN

1 0

HITSAT CW Telemetry Decoder
by Mineo Wakita 30 Sep '06

30 Sep '06

This program was developed by Mike Rupprecht, DK3WN. http://www.dk3wn.info/sat/afu/sat_hitsat.shtml --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Sep 30, 2006 ---------------------------------------------

1 0

Looking for AO-7 calls during 1320Z pass Saturday
by Gould Smith 30 Sep '06

30 Sep '06

Hello BB, I will be doing a talk/demonstration Saturday, 30 September at the Ten-Tec Factory Hamfest. There is an AO-7 pass 1320-1340Z and I will be using a 2M antenna, downconverter and HF rig with spectrum display. I would appreciate some calls during the pass, voice and CW to show off the signals and activity level. I won't have an uplink, so can't reply. Looking forward to hearing a lot of activity tomorrow morning. Thanks, Gould, WA4SXM

1 0

Re: YES !! RS-15 is alive !
by Matt 29 Sep '06

29 Sep '06

Beacon was quite strong last night (RS-15 was in sunlight). All the beacon did was to send a carrier every 4 and half seconds that lasted for 1 second, and it shifted in freq down by about 100 Hz (watched it on Spectran). The freq shift I guess is from not having enough power to drive everything. Beacon comes on - transponder comes on - satellite dies - beacon comes on - transponder etc....... I tried to uplink with as much grunt as I can muster, 100w into 22 ele X yagi switchable, but nothing. I'll have a few more shots at it and see how it goes. >YES !! RS-15 is alive ! >73, Pedro LU7ABF lu7abf(a)amsat.org.ar

1 0

HITSAT FM 2128 UTC
by Mineo Wakita 29 Sep '06

29 Sep '06

I noticed the rhythm of one FM beacon was fast in the last few days. http://www.ne.jp/asahi/hamradio/je9pel/hitsat03.htm --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Sep 29, 2006 ---------------------------------------------

1 0

Andrew L4NM Connectors
by Aub Voss 29 Sep '06

29 Sep '06

Were you ever able to locate center pins for the Andrew L4NM connectors? I am in the same situation you were, trying to locate just the pins. If you have located a supplier, please advise. Thanks much. Regards, Aaron Voss Asst. Project Manager

1 0

hitsat correction
by Andythomas 29 Sep '06

29 Sep '06

sorry that was Object A not C keps andy

1 0

Hitsat poor cw modulation?
by Andythomas 29 Sep '06

29 Sep '06

Hitsat heard at 17:58:20 utc doppler high on 437.2820, (using object c keps) but the cw signal is degraded compared to six days ago, Now it is much more of a "Rasp" than the "tone" it was. I have sent a file containing both examples to the command team. andy. G0SFJ

1 0

HITSAT 1754 UTC
by Mike Rupprecht 29 Sep '06

29 Sep '06

AOS 1754 UTC Sep 29 (JN49lr) Hit3 25494c494c4a4649 Hit4 c1d9d1e1 Hit1 jr8yjt Hit2 9300255072a Hit3 2b4b4b4a4b484848 Hit4 c1d9d1b8 Hit1 jr8yjt Hit2 93002590324 LOS 1801 UTC Date: Sep, 30 Time: 02:55:07 JST HIT2 9300255072a HIT3 2b4b4b4a4b484848 HIT4 c1d9d1b8 Temp +X face: 111,648 °C -> ??? Temp -X face: 34,779 °C Temp +Y face: 34,779 °C Temp -Y face: 37,181 °C Temp +Z face: 34,779 °C Temp -Z face: 41,986 °C Temp Transceiver: 41,986 °C Temp Battery: 41,986 °C Prim. Battery: 7,539 V Sec. Battery: 8,477 V 5 Volts: 4,951 V 5.5 Volts: 4,358 V RSSI: 0,824 V 73, Mike DK3WN

1 0

ARISS Contacts During JOTA
by Erik Jacobsen 29 Sep '06

29 Sep '06

Is there anyway that ARISS can be availble for general astronaut contacts on 10/21-10/22 for JOTA? I am going to be operating W9W that weekend with my troop. Based upon the latest Keplian Elements, these times seem to be favorable for all of the United States on 10/21-10/22: 10/21: 0522Z to 0542Z 0658Z to 0718Z 2325Z to 2341Z 10/22: 0059Z-0118z 0234Z to 0254Z 0544z to 0606z This is the prediction for Chicago IL: 2006-10-21 00:29:42 ISS 307.7 0.0 ecl 2164 357.4 -58.8 2006-10-21 00:34:36 ISS 29.5 43.6 ecl 475 359.7 -58.8 2006-10-21 00:39:29 ISS 112.0 0.0 ecl 2153 2.0 -58.8 2006-10-21 02:04:57 ISS 291.8 0.0 ecl 2160 38.7 -53.1 2006-10-21 02:09:26 ISS 226.3 16.8 ecl 945 40.3 -52.6 2006-10-21 02:13:54 ISS 160.5 0.0 ecl 2148 41.9 -52.0 2006-10-21 16:56:29 ISS 173.1 0.0 2.5 2172 245.1 10.4 2006-10-21 17:00:00 ISS 127.6 5.9 1.5 1563 245.7 9.8 2006-10-21 17:03:31 ISS 82.3 0.0 2.0 2177 246.4 9.2 2006-10-21 18:29:31 ISS 228.5 0.0 2.4 2173 260.9 -6.2 2006-10-21 18:34:29 ISS 142.2 67.7 -1.8 366 261.7 -7.2 2006-10-21 18:39:26 ISS 57.1 0.0 ecl 2169 262.5 -8.1 2006-10-21 20:05:07 ISS 271.0 0.0 2.1 2174 276.9 -24.0 2006-10-21 20:09:46 ISS 340.3 19.3 ecl 874 277.7 -24.9 2006-10-21 20:14:25 ISS 50.2 0.0 ecl 2167 278.6 -25.7 2006-10-21 21:41:21 ISS 300.4 0.0 ecl 2175 296.4 -41.1 2006-10-21 21:45:39 ISS 0.6 11.7 ecl 1180 297.4 -41.9 2006-10-21 21:49:55 ISS 60.6 0.0 ecl 2162 298.4 -42.6 2006-10-21 23:16:50 ISS 309.8 0.0 ecl 2167 325.4 -54.7 2006-10-21 23:21:30 ISS 20.3 20.3 ecl 838 327.2 -55.2 2006-10-21 23:26:09 ISS 91.0 0.0 ecl 2157 329.0 -55.6 2006-10-22 00:51:50 ISS 302.0 0.0 ecl 2162 8.0 -58.9 2006-10-22 00:56:45 ISS 218.2 57.8 ecl 392 10.3 -58.8 2006-10-22 01:01:38 ISS 134.2 0.0 ecl 2147 12.6 -58.6 2006-10-22 02:27:57 ISS 274.5 0.0 ecl 2157 46.9 -50.5 2006-10-22 02:31:10 ISS 233.3 4.7 ecl 1647 47.9 -50.1 2006-10-22 02:34:23 ISS 191.8 0.0 ecl 2146 48.9 -49.6 2006-10-22 17:17:08 ISS 202.9 0.0 2.6 2176 248.6 6.6 2006-10-22 17:21:45 ISS 134.7 19.5 0.3 873 249.4 5.8 2006-10-22 17:26:22 ISS 66.6 0.0 2.0 2178 250.2 5.0 2006-10-22 18:51:43 ISS 250.3 0.0 2.3 2176 264.3 -10.6 2006-10-22 18:56:38 ISS 331.1 39.4 -1.1 518 265.1 -11.5 2006-10-22 19:01:32 ISS 51.9 0.0 ecl 2168 265.9 -12.4 2006-10-22 20:27:51 ISS 287.5 0.0 2.0 2178 280.7 -28.4 2006-10-22 20:32:16 ISS 350.2 13.4 ecl 1102 281.6 -29.2 2006-10-22 20:36:39 ISS 52.7 0.0 ecl 2166 282.4 -30.0 2006-10-22 22:03:48 ISS 307.5 0.0 ecl 2174 301.7 -45.1 2006-10-22 22:08:13 ISS 10.4 13.5 ecl 1091 302.9 -45.8 2006-10-22 22:12:36 ISS 73.2 0.0 ecl 2161 304.1 -46.5 2006-10-22 23:38:55 ISS 307.8 0.0 ecl 2169 334.1 -57.1 2006-10-22 23:43:50 ISS 29.9 41.4 ecl 493 336.2 -57.5 2006-10-22 23:48:41 ISS 110.9 0.0 ecl 2148 338.4 -57.8 2006-10-23 01:14:09 ISS 292.5 0.0 ecl 2161 18.6 -58.3 2006-10-23 01:18:40 ISS 226.1 17.8 ecl 910 20.6 -58.0 2006-10-23 01:23:10 ISS 159.1 0.0 ecl 2144 22.6 -57.7 Thanks Erik Jacobsen, KB9BNY Varsity Scout Team Couch

2 3

HITSAT 1621 UTC
by Mike Rupprecht 29 Sep '06

29 Sep '06

AOS 1621 UTC Sep 29 (JN49lr) Hit4 c1d8d1e1 Hit1 jr8yjt Hit2 93001195735 Hit3 36494c494e4a4948 Hit4 c1d8d2b8 Hit1 jr8yjt Hit2 93001235522 Hit3 0d4c4c494d48484a Hit4 c1d8d2e2 LOS 1629 UTC 73, Mike DK3WN

1 0

Next Galileo satellite launch
by jules＠g0nzo.co.uk 29 Sep '06

29 Sep '06

The next Galileo satellite has been scheduled. Date: November 30 Payload: GIOVE B (GSTB-V2/B) Launcher: Soyuz-FG / Fregat Launch site: Baikonur Cosmodrome, Kazakhstan Mission: demonstration satellite for Galileo navigation system

1 0

Office Schedule
by MARTHA SARAGOVITZ 29 Sep '06

29 Sep '06

The AMSAT Office will be closed on Monday, October 2nd. I will be back in the office on Tuesday and then leave on Wednesday, October 4th for CA and the AMSAT BOD Meeting, Annual Meeting and Space Symposium. I will return to the office on Monday, October 16th. Hope to see you in California!! 73- Martha

1 0

Eagle
by Jim Sanford 29 Sep '06

29 Sep '06

All: I have just uploaded a reformatted version of the Eagle digital design meeting in San Diego. Hope it's easier to read than before. CHeck out the meeting pages in EaglePedia. Thanks & 73, Jim wb4gcs(a)amsat.org

3 3

Re: Spaghetti cooking jars
by Reicher, James 29 Sep '06

29 Sep '06

That's using your noodle! Sorry, I couldn't pasta that one up. 73 de N8AU, Jim in Raymore, MO Date: Thu, 28 Sep 2006 20:00:38 -0700 (PDT) From: Jim Jerzycke <kq6ea(a)pacbell.net> Subject: [amsat-bb] Re: Spaghetti cooking jars To: Steve Meuse <smeuse(a)mara.org>, Bruce Semple <brucesemple(a)verizon.net> Cc: amsat-bb(a)amsat.org Message-ID: <20060929030038.13917.qmail(a)web80609.mail.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 Don't let anybody fool you.....it's really a secret code for a new style of cavity resonator! 73, Jim KQ6EA --- Steve Meuse <smeuse(a)mara.org> wrote: > Bruce Semple expunged (brucesemple(a)verizon.net): > > > Hi Mom -- > > You did get those Spaghetti cooking jars that I > mailed down to you a > > while ago .. right? > > Well, did she? > > Inquiring minds want to know! > > -Steve > N1JFU

1 0

HITSAT copied in EL88pg
by Andrew Glasbrenner 29 Sep '06

29 Sep '06

Congratulations to the HITSAT team! I copied the CW beacon from 22:42 at ~437.280, 22:44 at 274.3 (just after time of closest approach), and 22:45:45 at 268.2. I was busy pointing and tuning, so didn't get any of the telemetry, and Mixw didn't either. There is a bit of a gap between transmissions which makes tuning and pointing by hand a bit tough, especially with no keps ;-) The signal was quite strong at times, up to s9 or so on a M2 30cp and Landwehr preamp. Looking forward to 1200 baud data from this satellite hopefully. 73, Drew KO4MA EL88pg New Port Richey, FL AMSAT LM 2332

3 7

Galileo Receiver
by Trevor 29 Sep '06

29 Sep '06

Story in Electronics Weekly that Canadian firm SiGe Semiconductor has produced a chipset for Galileo receivers. Galileo gets first sat nav chipset from UK http://www.electronicsweekly.com/Articles/2006/09/28/39800/Galileo+gets+fir… 73 Trevor M5AKA --------------- Daily Amateur Radio RSS News: http://www.southgatearc.org/ Email your news items to: editor at southgatearc.org News On Your Website: http://www.southgatearc.org/rss/index.htm News On Your PC: http://www.southgatearc.org/rss/newsreader.htm Upload Your News: http://www.southgatearc.org/news/your_news.htm --------------- ------------- Chelmsford Amateur Radio Society ------------- Support Essex Air Ambulance - Apply for the Chelmsford Award See CARS website http://www.g0mwt.org.uk/ ------------------------------------------------------------ ___________________________________________________________ Inbox full of spam? Get leading spam protection and 1GB storage with All New Yahoo! Mail. http://uk.docs.yahoo.com/nowyoucan.html

1 0

Correction : HITSAT CW telemetry format update
by Mineo Wakita 29 Sep '06

29 Sep '06

HIT1 Bureau call sign : JR8YJT HIT2 Absolute time information : [A]Month,[BB]Day,[CC]hour, [DD]minute,[EE]second,[FF]RSSI HIT3 Each temperature information : [GG]+X face,[HH]-X face,[II]+Y face, [JJ]-Y face,[KK]+Z face,[LL]-Z face, [MM]temperature of wireless machine, [NN]temperature of battery HIT4 Power supply information : [OO]Amount of 1st battery, [PP]Amount of 2nd battery [QQ]5V,[RR]5.5V HIT5 Amateur radio service : TNX[Callsign1],TNX[CallSign2], Example : [A] 1...Jan, 9...Sep, a...Oct, b...Nov, C...Dec [BB] 1 - 31, [CC] 00 - 23, [DD] 00 - 59, [EE] 01-59 [FF] RSSI(Receive Signal Strength Indication), change from hex to dec x, and y = x*5/255 [V] Maximum 2.15 [V] [GG][HH][II][JJ][KK][LL][MM][NN] change from hex to dec x, and y = x*5/255 [V] and y*(-122.99)+214.94 = TEMP [C] [OO][PP] x/256*10 = E [V] [QQ][RR] x/256*5*1.212766 = E [V] HIT1 JR8YJT HIT2 9280221372A HIT3 4C4B4F4C4D484A4B HIT4 C1D8D1E2 HIT5 Comming Soon Then HIT1 JR8YJT HIT2 Sep 28, 02:21:37 JST, RSSI 0.824[V] HIT3 +X 32.37[C], -X 34.77[C] +Y 25.17[C], -Y 32.37[C] +Z 29.47[C], -Z 41.98[C] temperature of wireless machine 37.18[V] temperature of battery 34.77[C] HIT4 Amount of 1st battery 7.54[V] Amount of 2nd battery 8.43[V] 5V line 4.95[V], 5.5V line 5.35[V] --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Sep 29, 2006 ---------------------------------------------

1 0

HITSAT CW telemetry format update
by Mineo Wakita 29 Sep '06

29 Sep '06

HIT1 Bureau call sign : JR8YJT HIT2 Absolute time information : [A]Month,[BB]Day,[CC]hour, [DD]minute,[EE]second,[FF]RSSI HIT3 Each temperature information : [GG]+X face,[HH]-X face,[II]+Y face, [JJ]-Y face,[KK]+Z face,[LL]-Z face, [MM]temperature of wireless machine, [NN]temperature of battery HIT4 Power supply information : [OO]Amount of 1st battery, [PP]Amount of 2nd battery [QQ]5V,[RR]5.5V HIT5 Amateur radio service : TNX[Callsign1],TNX[CallSign2], Example : [A] 1...Jan, 9...Sep, a...Oct, b...Nov, C...Dec [BB] 1 - 31, [CC] 00 - 23, [DD] 00 - 59, [EE] 01-59 [FF] RSSI(Receive Signal Strength Indication), change from hex to dec x, and y = x*5/255 [V] and y*(-122.99)+214.94 = TEMP [C] [OO][PP] x/256*10 = E [V] [QQ][RR] x/256*5*1.212766 = E [V] HIT1 JR8YJT HIT2 9280221372A HIT3 4C4B4F4C4D484A4B HIT4 C1D8D1E2 HIT5 Comming Soon Then HIT1 JR8YJT HIT2 Sep 28, 02:21:37 JST, RSSI 0.824[V] HIT3 +X 32.37[C], -X 34.77[C] +Y 25.17[C], -Y 32.37[C] +Z 29.47[C], -Z 41.98[C] temperature of wireless machine 37.18[V] temperature of battery 34.77[C] HIT4 Amount of 1st battery 7.54[V] Amount of 2nd battery 8.43[V] 5V line 4.95[V], 5.5V line 5.35[V] --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Sep 29, 2006 ---------------------------------------------

1 0

OSCAR-11 Report
by Clive Wallis 29 Sep '06

29 Sep '06

OSCAR-11 REPORT 28 September 2006 NOTHING HEARD FROM OSCAR-11 DURING SEPTEMBER ... REPORTS REQUESTED! Please post reports to AMSAT-BB or e-mail to xxxxx(a)amsat.org (replace xxxxx by g3cwv). During the period 14 August 2006 to 28 September, the satellite was heard from 16 to 26 August. The beacon was expected to switch ON ten days or 20 later, ie. around 05 or 15 September. However, it has not been heard since 26 August. During the last ON period, the real time clock showed various errors. The date on 16 August was 51 July. By 26 August it had incremented to 60 July. The hours were also showing an erratic behaviour. Over short periods of time, ie. during a pass, the minutes and seconds appeared to be incrementing correctly I am indebted to Jeff KB2M, Peter ZL3TC and Dave G1OCN, for their reports and for monitoring the satellite, especially during the last two weeks while I have been away on holiday. Many thanks. The status of the satellite, when last heard, was that all the analogue telemetry channels, 0 to 59 are zero, ie they have failed. The status channels 60 to 67 were still working. The spacecraft computer and active attitude control system have switched OFF, ie. the satellite' attitude is controlled only by the passive gravity boom gradient, and the satellite is free to spin at any speed. When telemetry was last received it showed that one of the solar arrays had failed, and there was a large unexplained current drain on the main 14 volt bus. After 22 years in orbit the battery has undergone around 100,000 partial charge/discharge cycles, and observations suggest that it cannot power the satellite during eclipses, or sometimes during periods of poor solar attitude. The watchdog timer now operates on a 20 day cycle. During the three months before May (when the eclipses started), the ON/OFF times were very consistent, and the average of many observations show this to be 20.7 days, ie. 10.3 days ON followed by 10.4 days OFF. However, poor solar attitude may result may result in a low 14 volt line supply, which may cause the beacon to switch OFF prematurely, and reset the watchdog timer cycle. When this occurs, the beacon is OFF for 20.7 days. The Beacon frequencies are - VHF 145.826 MHz. AFSK FM ASCII Telemetry UHF 435.025 MHz. OFF S-band 2401.5 MHz. OFF Listeners to OSCAR-11 may be interested in visiting my website. If you need to know what OSCAR-11 should sound like, there is a short audio clip for you to hear. The website contains an archive of news & telemetry data. It also contains details about using a soundcard or hardware demodulators for data capture. There is software for capturing data, and decoding ASCII telemetry. The URL is www.users.zetnet.co.uk/clivew/ If you place this bulletin on a terrestrial packet network, please use the bulletin identifier $BID:U2RPT125.CWV, to prevent duplication. 73 Clive G3CWV xxxxx(a)amsat.org (please replace xxxxx by g3cwv)

1 0

Spaghetti cooking jars
by Bruce Semple 29 Sep '06

29 Sep '06

Hi Mom -- You did get those Spaghetti cooking jars that I mailed down to you a while ago .. right?

6 6

Re: UHF pwr amp
by Matt 29 Sep '06

29 Sep '06

Hi Pop. Have a look at VK5EME's website at http://www.minikits.com.au/ >I wish to build a UHF pwr amp using the Mitsubishi M57729 to carry along for >portable operation with my little Uhf handy (0.5 watt ). >Appreciate help with regard to application notes and ready PCB design notes >guidance etc.

1 0

Sinclair Radio Labs A-2C08D
by G. Beat 28 Sep '06

28 Sep '06

This orphan RF pre-amplifier (Model A-2C08D) landed on my door step. It is a VHF (132 - 174 MHz) pre-amplifier that Sinclair Radio Labs (Tonawanda, NY) marketed in the 1970s. Its a Manhattan style construction in a nice Pomona box :-) Of course, this orphan does not work. Chance that anyone may have a schematic? ... likely a 4-pin FET ... before I open it up on the workbench next week? Initial e-mail to current Sinclair went un-answered. Phone call likely next, but I doubt they have the schematic for this old pre-amp on-file. Greg w9gb

2 1

Re: Arrow Antennas
by Fred A Parker 28 Sep '06

28 Sep '06

Sorry the name is the Northlander. After my QTH up here in the cold and soon snow of northern Minnesota Burghardt should have them in there web store soon. Fred

1 0

HITSAT 1824 UTC
by Mike Rupprecht 28 Sep '06

28 Sep '06

AOS 1824 UTC Sep 28 (JN49lr) very low pass Hit3 0e4c4e4.4d4b4749 Hit4 c1d5d1e1 Hit1 jr8yjt Hit2 92903250229 Hit3 2a4... LOS 1830 UTC 73, Mike DK3WN _______________________________________________ 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

1 0

UHF pwr amp
by Prathap Kumar 28 Sep '06

28 Sep '06

Hi All I wish to build a UHF pwr amp using the Mitsubishi M57729 to carry along for portable operation with my little Uhf handy (0.5 watt ). Appreciate help with regard to application notes and ready PCB design notes guidance etc. Thanks in advance. Best 73 Pop VU2POP

2 1

Re: Arrow Antennas
by Fred A Parker 28 Sep '06

28 Sep '06

I will be shipping in a few days ten antennas designed for portable LEO satellite work to Burghardt Ameteur Center. They are a LPDA simular to the Elk but with the eliments angled at thirty degrees to help the gain by about 3db. They are a true Dual bander VHF/UHF with single feed. They have been an on going project. Lou Mc Faddin W5DID has been my Elmer for them. Amsat may carry them in there store in the future. I have sold about ten of them locally and on Ebay to get feedback and have not yet received any negative comments on there perfomance. Her is a link for a better discription and pictures of one I sold on Ebay. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=ADME:L:EOISSAA:US:… Fred KF0AK

2 1

Re: 70cm preamp
by Alan P. Biddle 28 Sep '06

28 Sep '06

Bill, I can't help but wonder if the unit has mislabeled leads. Of course that is preposterous, but you can't argue with success. Hi Hi! Glad you got things working! Alan WA4SCA

1 0

YES !! RS-15 is alive !
by lu7abf 28 Sep '06

28 Sep '06

Hello Domenico, et all aboard BB Thanks for test and try. Perhaps there is some timer or condition that place/unplace operational the RS-15 transponder, or variable attitude hence antenna position. What I noticed, is that on-off period of beacon is variable, sometimes the cycle is about 1 second on, 7 sec off, under that situation I was not receiving the transponder. The time where I succeed getting back my uplink was when beacon was 10 seconds on and 2 seconds off. Perhaps it varies according to pannels solar exposure. When transponder operating, my CW replicates the same woeing that the beacon has, it means has some fming. Also it is possible that command station still has control over RS-15, and can set on or off transponder, or some external event is doing alike effect. That's reason I copied to control station email stated on RS-15 page. So, I will keep trying and perhaps we could infere some pattern about transponder operation. 73, lu7abf, Pedro lu7abf(a)amsat.org.ar www.amsat.org.ar

1 0

HITSAT 1648 UTC
by Mike Rupprecht 28 Sep '06

28 Sep '06

AOS 1648 UTC Sep 28 (JN49lr) Hit1 jr8yjt Hit2 92901462633 Hit3 0d4c504b4d494848 Hit4 c1d6d1e2 Hit1 jr8yjt Hit2 92901502326 Hit3 284b4f4b4d49474b Hit4 c1d5d1e2 Hit1 jr8yjt Hit2 92901..2..5 LOS 1657 UTC 73, Mike DK3WN

1 0

Hitsat auto doppler tuning
by Bruce Robertson 28 Sep '06

28 Sep '06

Gang: I thought I'd point out that the keps listed as 'TLE used at ground station in HIT(Hokkaido Institute of Teachnology)' on the page http://www.hit.ac.jp/%7Esatori/hitsat/hit-sat_tle.txt worked perfectly for me last night. Using the specified frequency of 437.275MHz I could hear the bird from rise to setting using doppler tuning software and not a jot of manual tweaking. Computer-aided tuning is particulary useful on Hitsat due to the long delay between telemetry lines. Enjoy! 73, VE9QRP Bruce

1 0

Re: Primestar L Band
by Edward R. Cole 28 Sep '06

28 Sep '06

At 02:25 AM 9/28/2006 +0000, w7lrd(a)comcast.net wrote: > >Hello >How much gain can I expect to get from a 36x30 inch primestar dish. Also a 54X48 ps dish? I plan to use a 5-6 turn helix feed. I've been googleling around and I can't find out. I have some 7/8 hardline I'll use from my IC-1271A running 10 watts. >73 Bob W7LRD >Seattle Since the dishes are elliptical standard formula for a circular parabolic dish will not properly calculate gain. But if you use the smaller dimension as a diameter in those formula you should come up with the minimum gain. Using 30-in, gain = 24.1 dBi at 2401 MHz Using 48-in, gain = 29.2 dBi at 2401 MHz, gain = 23.7* dBi at 1268 MHz * Note: The smaller dish is too small at 1268 MHz and the larger dish may not produce this gain since it < 10 wavelength in diam. 73's, Ed - KL7UW ========================================= http://www.qsl.net/al7eb - BP40iq 144-EME: FT-847, mgf-1801/1402, 4xM2-xpol-20, 170w 432-EME: FT-847, mgf-1402, 1x21-ele (18.6 dBi), 60w =========================================

2 1

YES !! RS-15 is alive !
by lu7abf 28 Sep '06

28 Sep '06

YES !! RS-15 is alive ! Reading a recent report on AMSAT-BB from Gary deMunbrun WA4RKS about RS-15, move me to try. Tks Gary! I tried on several passes, I always heard the intermitent carrier at 29.352, but no repeat of my uplink, trying either on official 145.858-98 or on suggested 145.958-98. All of tries were made with RS-15 on her night. But today I gave her another try. This time RS-15 was sunlight on a pass that lasted 20 minutes on Sept-28 00:24 to 00:43 LU Time. I could uplink first CW and after SSB and hear it back !!!!, despicte the fact that I'm only using 25 W from FT-736 on 2mts and a 2m turnstile !! Frequencies I operate where: Uplink 145.875 , downlink 29.374 with good signal return about s3. Unfortunately no one to try a QSO. RS-15 is amazing, with 2000 Km height, passes can last up to half an hour ! even earth coverage is quite broad ! So, looks that we have had a new child reborn, coming back to life from over ten years ago. You can find on http://www.amsat.org.ar RS-15 passes precalculated for your location and on your time, for a quick RS-15 . 73, Pedro LU7ABF lu7abf(a)amsat.org.ar

3 2

HITSAT 1517 UTC
by Mike Rupprecht 28 Sep '06

28 Sep '06

AOS 1517 UTC Sep 28 (JN49lr) Hit2 9290015373f Hit3 414a4e494c494949 Hit4 8bd6d1e2 Hit1 jr8yjt Hit2 9290019442a LOS 1523 UTC 73, Mike DK3WN

1 0

70cm preamp
by Alan P. Biddle 28 Sep '06

28 Sep '06

Bill, Something is very wrong. Setting aside the inaccuracy of S-meters, there should be negligible loss. I would expect something like that if the 2 meter output were used by mistake, since they are rated at about a 60 db isolation. However, your description seems to preclude that. "I also reversed it with the same results." Does this mean you swapped direction, or tried the 2 meter lead? What did you see for an SWR when you transmitted on 70 cm with the duplexer(s) in place? If you really have that high a loss, it will show up. Did you try and receive the satellite, or a local repeater, with the duplexer? Perhaps someone else will have an idea. Alan WA4SCA

1 0

Arrow Antennas
by Fabio Roccatagliata 28 Sep '06

28 Sep '06

Dear OMs, I was wondering if arrow antennas are the only portable antennas available on ham shops or other similar products are/were available. Any other suggestion for a simple V/U portable antenna to use for handheld or portable operations ? Thanks Fabio IZ1EGT / F5VKV

4 4

HITSAT FM recorded
by Mineo Wakita 28 Sep '06

28 Sep '06

Today, 09:00 UTC, 28 Sep 2006, I recorded the HITSAT FM sounds on 437.425 MHz. These signals were switched on ONLY in the range of Japan. And these 1k2 AFSK (FM 437.425 MHz) be able to decode by modem of IC FX614, becauce NOT AX.25 (not NRZ-NRZI). http://www.ne.jp/asahi/hamradio/je9pel/60928hit.wav --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Sep 28, 2006 ---------------------------------------------

1 0

Antennas IOio and CJU for VHF/UHF Satellite Mobile Operation
by i8cvs 28 Sep '06

28 Sep '06

Hi Rick, N1HID I have sent to you the requested drawings and information about the antennas IOio and CJU Unfortunately my message sent to n1hid(a)comcast.net failed and bounced back Do you have another email address to try again ? 73" de i8CVS Domenico

1 0

Fw: 23 cm Loop feed
by kc6uqh 28 Sep '06

28 Sep '06

Here is a modification to a standard conifer type 2.4 GHz grill antenna. The loop gives it a feed for L Band used here to receive ATV 1.253 GHz while transmitting on 2.441 GHz. Filters are required on both bands to reduce white noise from the Xmit PA and leep power out of the receive preamp. Those interested in Pictures request via E-Mail and I will forward them. Art, KC6UQH Subject: 23 cm Loop feed Dave, Ted and Gary, Here are some pictures. #1, & #2 show the feed mounted on the dish from both sides, #3 shows the Split Feed balun. Clamp tight one end 12" length of # 12Ga house wire in shop vise, pull hard until straight, then strip off insulation with a box cutter. The loop is 2.64 " square center to center, formed from the # 12 hard drawn house wire with the insulation removed. Using a 3" length of 1/8 " copper hobbie tubing, cut two .025" wide slots one on each side for 2.4 " long. Trim back the braid 2.9 " on a piece of R/G 142, Strip 0.2" of the center dielectric from the end of the cable. Slide the copper tube on to the coax unsplit end first, fan out the braid, and bend over the center conductor and solder to one of the split ends, Each side of the loop connects to a split end of the tubbing. Silde a piece of 1/4" heat shrink tubbing over the copper tubbing and solder the braid to the unsplit end You can also solder a bracket to this end to support the cable, and in the center of the opposite side use a piece of acrylic plastic 1/16 thick, heated and bent to support the other side of the loop. After connecting the loop, shrink the tubbing and coat the matching section and connections with liquid electrical tape or yellow weatherstrip adhesive. Cable is then wire tied to the boom. The loop is 2.75 " from the center of the reflector where it is screwed to the 2.4 GHz antenna cover. This is a living document and comments about omissions, changes etc are welcome in the intrerest of maintaining an accurate documentation. Art, KC6UQH

1 0

L Band Uplink Ant
by sco＠sco-inc.com 28 Sep '06

28 Sep '06

What do most folks use for a L Band uplink antenna? Les W4SCO

4 3

Re: L Band Uplink Ant
by Wayne Estes 28 Sep '06

28 Sep '06

Ed Cole wrote: That being said, there is the benefit of using it [4-foot dish] as a dual-band antenna on 1268/2401. Wayne replies: AND it has right hand circular polarization to minimize fading. Wayne Estes W9AE Oakland, Oregon, USA, CN83ik

1 0