Re: [amsat-bb] 2m Link Budget - Chinese Satellite 4M-LXS

2014-08-19 Thread g0mrf
ssion and 'sync' the receive periods by altering the PC clock. Regards David G0MRF -Original Message- From: Michael R. Lengruesser To: amsat-bb Sent: Tue, 19 Aug 2014 15:53 Subject: Re: [amsat-bb] 2m Link Budget - Chinese Satellite 4M-LXS See attachment Michael R.

Re: [amsat-bb] 2m Link Budget - Chinese Satellite 4M-LXS

2014-08-18 Thread g0mrf
Hi Simon. Do you have any info on the TX output power and antenna on 145.990? JT-65 from the moon is an interesting challenge. The LuxSpace site seems to concentrate on AIS services for tracking shipping. 73 David G0MRF -Original Message- From: Simon Brown To: amsat-bb Sent

Re: [amsat-bb] 23 cm band and WRC-2018

2014-08-13 Thread g0mrf
Interesting. A personal observation: A current ESA Education project. - ESEO plans to use 1263.5 MHz as an uplink to a L/V FM transponder. 2m / 70cm and S band were not possible as they are in use elsewhere on the same satellite. The possible impact on Galileo was discussed / analysed for t

Re: [amsat-bb] Telemetry freq for Ukcube-1/Funcube-2?

2014-08-02 Thread g0mrf
Hi Mark Someone with an IQ file should be able to give you an exact figure. My estimate is just under 3kHz high. The good news is that possibly due to the increased thermal mass of the 3U structure, the temp stability seems better than AO-73. 73 David -Original Message- From: Ma

Re: [amsat-bb] Message from INVADER

2014-07-24 Thread g0mrf
Err. Does that break your licence rules? Broadcasting / politics David -Original Message- From: Akihiro Kubota To: AMSAT Sent: Thu, 24 Jul 2014 2:14 Subject: [amsat-bb] Message from INVADER Dear all, Hello, INVADER(CO-77) will send the following digi-talker message over Ga

Re: [amsat-bb] ANS-199 AMSAT News Service Special Bulletin - AMSAT Fox-1C Launch Opportunity Announced

2014-07-20 Thread g0mrf
I must quickly point out some real data: www.warehouse.funcube.org.uk Which shows an equilibrium of around +20 degrees after 64 minutes of sunlight. Black solar cells on a black surface but some polished Aluminium in the structure. During eclipse, The Earth facing side begins to increase in

Re: [amsat-bb] Dnepr Upper Stage Apogee

2014-07-05 Thread g0mrf
urage secondary passengers, with approved deployers, to one of the MEO orbits 8000 / 20,000km - Now that would be fun. Thanks David G0MRF -Original Message- From: Andrew Glasbrenner To: Paul Stoetzer CC: AMSAT-BB Sent: Sat, 5 Jul 2014 13:43 Subject: Re: [amsat-bb] Dnepr Upper Stage A

Re: [amsat-bb] Recordings of FO29 Field Day passband...?

2014-06-26 Thread g0mrf
Or use a FC dongle or other SDR software to record an IQ file for the transponder. You could see all the stations in the passband, then play again and listen to each one in turn. -Original Message- From: Robert Bruninga To: amsat bb Sent: Thu, 26 Jun 2014 4:25 Subject: [amsat-bb] Rec

Re: [amsat-bb] Tracking assistance requested for DTUsat-2 on 2.4GHz

2014-06-21 Thread g0mrf
Hi Jonas Did you find your satellite? I have 2.4G here. 1) What is the power output on 2.401 so I can work out what antenna I need to use? 2) Is the antenna on the satellite an Omni or a patch? G0MRF -Original Message- From: Jonas Bjarnø To: AMSAT-BB Sent: Sat, 21 Jun

Re: [amsat-bb] D-STAR Parrot Repeater Satellite launches Thursday June19

2014-06-18 Thread g0mrf
otion14.82 Thanks David G0MRF -Original Message- From: Jeff Yanko To: M5AKA ; AMSAT BB Sent: Wed, 18 Jun 2014 22:45 Subject: Re: [amsat-bb] D-STAR Parrot Repeater Satellite launches Thursday June19 What time is the launch scheduled for? Jeff WB3JFS - Ori

[amsat-bb] QB50P1+2 / Dnepr Launch

2014-06-18 Thread g0mrf
14.82 Thanks David G0MRF ___ 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

[amsat-bb] JO00EW

2014-06-07 Thread g0mrf
racking in the field and manual antenna rotating. ! Thanks David G0MRF/P ___ 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 sett

Re: [amsat-bb] LitSat-1 decayed

2014-05-23 Thread g0mrf
Well spotted Paul. It's certainly worth any CubeSat deployed from the ISS or into a low orbit to be as close to the maximum 1.3kg as possible. Thanks David -Original Message- From: Paul Stoetzer To: amsat-bb Sent: Fri, 23 May 2014 12:50 Subject: [amsat-bb] LitSat-1 decayed L

[amsat-bb] Re: QB50p1 (FUNcube-3) QB50p2 delivered

2014-05-04 Thread g0mrf
Hi Trevor. Thanks for all the info on two more transponders, one linear and one FM due for launch in June I thought this comment from the owners was really nice: "and an amateur radio payload provided by the AMSAT-NL and AMSAT-FR. These last payloads serve as a return favour to the satelli

[amsat-bb] Re: FUNcube/AO-73 - Now in Full time low power beacon/ Transponder ON mode

2014-05-03 Thread g0mrf
Hi Greg. Yes, the satellite has the transponder on for the whole orbit this weekend until around 20:30 UTC Sunday Looking at the red graph from the telemetry, you can see the power consumed is the same in eclipse and sunlight. The peaks in the red graph are due to the transponder being use

[amsat-bb] Re: LituanicaSat-1 OSCAR

2014-05-02 Thread g0mrf
The operators have to apply. But it seems to meet all the requirements David -Original Message- From: Mike Rupprecht To: AMSAT-BB Sent: Fri, 2 May 2014 6:32 Subject: [amsat-bb] LituanicaSat-1 OSCAR Hi all, wouldn't it be fair to assign an OSCAR number to LituanicaSat-1? 7

[amsat-bb] Re: Falcon 9 Flight 9 Landing Burn + Leg Deployment

2014-04-29 Thread g0mrf
ads. I had no idea fuel was only 0.3% of the launch cost and that the first stage was 70% Great interview Thanks David G0MRF -Original Message- From: Bryce Salmi To: B J CC: Amsat BB Sent: Tue, 29 Apr 2014 17:14 Subject: [amsat-bb] Re: Falcon 9 Flight 9 Landing Burn + Leg Dep

[amsat-bb] Re: FUNcube / AO-73 weekend operations

2014-04-12 Thread g0mrf
Transponder on at 09.10. this morning Thanks Wouter Happy Gagarin day everyone (April 12th 1961) -Original Message- From: wouter weggelaar To: AMSAT-BB Sent: Sat, 12 Apr 2014 0:24 Subject: [amsat-bb] FUNcube / AO-73 weekend operations Hi All, During the last pass, I have attempt

[amsat-bb] Re: AO-73 deaf ?

2014-03-12 Thread g0mrf
o the west in about 15 minutes, I'll have a look at the passband then. - It's usually much quieter after 23.00 UTC Thanks David G0MRF -Original Message- From: Peter Wilson To: amsat-bb Sent: Wed, 12 Mar 2014 22:01 Subject: [amsat-bb] AO-73 deaf ? Hi all, I tried to wor

[amsat-bb] Re: FUNcube Warehouse Upload Ranking Changes

2014-02-21 Thread g0mrf
No 93..must try harder must try harder. -Original Message- From: David Johnson To: Andrew Glasbrenner ; Amsat - BBs Sent: Thu, 20 Feb 2014 21:43 Subject: [amsat-bb] Re: FUNcube Warehouse Upload Ranking Changes Hi, Oooh, that sound like a challenge for another train journey :-)

[amsat-bb] Re: Videos from last weekend's Yuma Hamfest

2014-02-19 Thread g0mrf
Nice FUNcube demo Patrick. Thanks for the good publicity David G0MRF -Original Message- From: Patrick STODDARD (WD9EWK/VA7EWK) To: amsat-bb Sent: Tue, 18 Feb 2014 22:44 Subject: [amsat-bb] Videos from last weekend's Yuma Hamfest Hi! I have posted some videos from last week

[amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink

2014-01-20 Thread g0mrf
Hi Greg. Most decent VHF transmitters will already have a pretty good LPF on the output to reduce the harmonics. However, receivers these days tend to be DC-Daylight, so frequently need a filter to prevent 'blocking' by unwanted high level signals. In that case preventing the VHF coming into

[amsat-bb] Re: AO-73 Question

2013-12-27 Thread g0mrf
at www.funcube.org.uk Regards and good luck David G0MRF -Original Message- From: Peter Budnik To: AMSAT-BB Sent: Fri, 27 Dec 2013 5:21 Subject: [amsat-bb] AO-73 Question Dear Felloe Satellite Hams I've been listening to AO-73 Telemetry beacon for about 2 weeks now and never

[amsat-bb] Re: CAPE-2 Keps

2013-12-06 Thread g0mrf
Hi Roland. Nice data from CAPE-2. Curious about the unregulated bus voltage around 5.2V. Doesn't seem to fit with a single or double Li poly cell. However, if it's the output from 2 series solar cells, that might indicate the batteries are fully charged and we are seeing the max power poin

[amsat-bb] Re: AO-73 QSOs on the beacon?

2013-12-06 Thread g0mrf
to one side e.g. 145.920? Other possibility is a large signal in the transponder passband causing the beacon to FM.Is the modulation 'FM' or does it decode as SSB? Thanks David G0MRF -Original Message- From: n0jy To: AMSAT-BB Sent: Fri, 6 Dec 2013 4:40 Subject: [amsat-bb]

[amsat-bb] CAPE-2 CW over London

2013-12-02 Thread g0mrf
equations. Regards David G0MRF -Original Message- From: Nick Pugh K5QXJ To: g0mrf ; amsat-bb CC: cape Sent: Mon, 2 Dec 2013 14:52 Subject: RE: CAPE-2 CW over Brazil Tnx David for the report If you have a TNC we would like to get the AX.25 data. If you like we have ground station

[amsat-bb] Re: CAPE-2 CW over Brazil

2013-12-02 Thread g0mrf
.5145 186.8069 0003506 014.0453 346.0304 15.21277316 1661 Regards David G0MRF ___ 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 set

[amsat-bb] Re: CAPE-2 CW over Brazil

2013-12-02 Thread g0mrf
pass, but I can't find anything on the CAPE website which describes the sequence or timing of the transmissions. If you can send a link for this info and I'll be able to anticipate the timings and modes. Thanks David G0MRF (FUNcube team) -Original Message- From: Nick Pugh K

[amsat-bb] Re: AO73 transponder on over Europe

2013-11-23 Thread g0mrf
___ 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

[amsat-bb] Re: FUNcube-1 in Space!

2013-11-21 Thread g0mrf
t's on the other side of the planet. 73 David G0MRF -Original Message- From: Christian F1AFZ To: amsat-bb Sent: Thu, Nov 21, 2013 7:49 am Subject: [amsat-bb] Re : Re: FUNcube-1 in Space! Congratulation for all the team !! 73's Christian F1AFZ http://www.f1afz.fr F1AF

[amsat-bb] Re: AMSAT Broadband Preamp Specs

2013-10-04 Thread g0mrf
Hi Domenico. Thank you for that formula relating sensitivity in a particular bandwidth to system noise figure. I have lost count over the years of the number of times you've posted just the right piece of theory to answer a question. Definitely time to say Thank you. David

[amsat-bb] Re: S band LEO Sat tracking

2013-09-05 Thread g0mrf
in on the ground and pointing accuracy of 2 degrees or better. Thanks David G0MRF -Original Message- From: michael luft To: amsat-bb Sent: Thu, Sep 5, 2013 7:42 pm Subject: [amsat-bb] S band LEO Sat tracking What kind of positioning accuracy can be expected form amateur PC Softwar

[amsat-bb] Re: Gospodin Murphy was right!

2013-07-21 Thread g0mrf
Heard the same story from a space professional at the AMSAT-UK event this weekend Upside down gyros. - Can that happen by accident? David -Original Message- From: Alan To: AMSAT-BB CC: CC Sent: Sun, 21 Jul 2013 13:37 Subject: [amsat-bb] Gospodin Murphy was right! An interesting

[amsat-bb] Re: Best Antennas for Attic (Short Booms)

2013-06-06 Thread g0mrf
of the visit, I dropped it all in the hotel dustbin. David G0MRF -Original Message- From: Les Rayburn To: AMSAT Mailing List Sent: Thu, 6 Jun 2013 5:17 Subject: [amsat-bb] Best Antennas for Attic (Short Booms) I'm in the process of upgrading my satellite array. Hope to add a

[amsat-bb] Re: Is there anyway to get a linear transponder on the ISS?

2013-05-30 Thread g0mrf
of interest from people with HF + 50MHz equipment. - HF antenna = prototype deorbit system?? or 2 x ferrite rods at 90 degrees on receive Thanks David G0MRF -Original Message- From: Ing. Pavel Milanes Costa To: Bob- W7LRD CC: amsat-bb Sent: Thu, 30 May 2013 13:26 Subject: [amsat-bb

[amsat-bb] Re: Path to HEO

2013-04-30 Thread g0mrf
Hi all. Deployable gain antennas are possible, but unfortunately attitude control is a real issue. If the orbit has a high perigee then the magnetic field for magnetorquing is minimal. With limited fuel and little or no magnetic field, keeping the antennas pointing correctly is difficult. Als

[amsat-bb] Re: Path to HEO

2013-04-28 Thread g0mrf
Hi Stefan. No reason at all why a satellite can not be transferred from LEO to a GTO style orbit. A definate advantage would be to have the LEO orbit the same inclination as the wanted 'GTO' orbit as it uses less fuel. A consideration in the overall design would be to allow for the long pa

[amsat-bb] Re: John Heath G7HIA, SK

2013-02-16 Thread g0mrf
Thank you Andy. We have lost a wonderful individual and friend. I am privaliged to have shared a golden age in amateur satellite communication with John. David G0MRF -Original Message- From: andy thomas To: amsat Sent: Sat, 16 Feb 2013 12:15 Subject: [amsat-bb] John Heath G7HIA

[amsat-bb] Re: CubeSats on Arirang TV

2013-02-01 Thread g0mrf
You're good Graham. I had to freeze frame the video.but then you can see the callsign PA3WEG on the masking tape. 73 David In a message dated 31/01/2013 GMT Standard Time, g.shirvi...@btinternet.com writes: The more eagle-eyed amongst us have spotted that about 9 seconds into this vide

[amsat-bb] Re: Beacon?

2013-01-12 Thread g0mrf
Yup. That is the HO-68 beacon. I use it at my school for demonstrating / measuring doppler and calculating the velocity and altitude of the satellite. Thanks David -Original Message- From: B J To: R.T.Liddy CC: amsat-bb Sent: Sat, 12 Jan 2013 5:17 Subject: [amsat-bb] Re: Beaco

[amsat-bb] Re: satellite spectrum

2012-09-27 Thread g0mrf
there are 3MHz available. Sounds like a good use for a reworked version of ' CW skimmer ' Thanks David G0MRF There is, however, no denying that the Amateur-satellite Service requires more spectrum. The key spectrum for us is at VHF/UHF below 1 GHz but we only have two allocati

[amsat-bb] Re: Digital Slow Scan in space

2012-09-07 Thread g0mrf
Hi both. I believe the digital SSTV that is used on HF / VHF is in reality DRM, which is a forward error corrected digital communications standard (?) I suppose the real difficulty is implementing a method of reading an image file and then encoding it for transmission in a broadcast type for

[amsat-bb] Re: How the Amateur Radio OSSI-1 Satellite Works

2012-08-11 Thread g0mrf
d?) David G0MRF -Original Message- From: Trevor . To: amsat-bb Sent: Fri, 10 Aug 2012 21:22 Subject: [amsat-bb] How the Amateur Radio OSSI-1 Satellite Works The Open Source Satellite Initiative has released a 20 minute video giving a general overview of the the Morse Code LED Cube

[amsat-bb] Re: Technical question about radar reflectivity

2012-08-07 Thread g0mrf
angular surfaces and radar absorbing coatings not a good idea. Thanks es gl David G0MRF -Original Message- From: Graham Shirville To: AMSAT BB Sent: Tue, 7 Aug 2012 22:32 Subject: [amsat-bb] Technical question about radar reflectivity Hi All, I am preparing a response to the UK Space

[amsat-bb] Ariane 5 launch in 10 minutes

2012-07-05 Thread g0mrf
Live coverage here http://www.arianespace.tv/index.htm If you can tolerate the 'adverts' and music David ___ 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 pr

[amsat-bb] Re: Asymmetric doppler curves?

2012-06-11 Thread g0mrf
omes lost within the errors. However, hopefully some of the students will find it an inspiring addition to their study of gravitational fields. Regards and thanks David -Original Message- From: i8cvs To: Amsat - BBs ; G0MRF Sent: Sun, 10 Jun 2012 3:25 Subject: Re: [amsat-bb] Asymetr

[amsat-bb] Asymetric doppler curves?

2012-06-09 Thread g0mrf
of my 45 minutes. Thanks David G0MRF ___ 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

[amsat-bb] L band uplink frequencies

2012-05-15 Thread g0mrf
y to avoid radars etc may be needed, but as with all projects, a starting point is needed. Any thoughts? Many thanks David G0MRF ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support t

[amsat-bb] Re: Delfi-C3 (DO-64) 4 years in orbit

2012-04-30 Thread g0mrf
Really ! I managed to make a 2 way QSO through the amateur radio transponder. Keep up Domenico David G0MRF -Original Message- From: i8cvs To: Trevor . ; Amsat - BBs Sent: Mon, 30 Apr 2012 1:02 Subject: [amsat-bb] Re: Delfi-C3 (DO-64) â?" 4 years in orbit Hi Trevor,

[amsat-bb] Re: MicroThrust Motor for Nanosats

2012-03-31 Thread g0mrf
process Thanks David G0MRF -Original Message- From: Trevor . To: amsat-bb Sent: Sat, 31 Mar 2012 16:40 Subject: [amsat-bb] MicroThrust Motor for Nanosats An interesting Swiss project see http://www.uk.amsat.org/6180 AMSAT-UK News on Twitter http://twitter.com/AMSAT_UK/

[amsat-bb] Re: Transatlantic balloon attempt

2012-03-24 Thread g0mrf
...hopefully a TCXO reference. David G0MRF -Original Message- From: Bob Bruninga To: amsat-bb Sent: Sat, 24 Mar 2012 18:42 Subject: [amsat-bb] Transatlantic balloon attempt I still have not heard of anyone copying the HF beacons on 30 and 40m. (10.147 and 7.102 MHz). I am curiouis

[amsat-bb] Re: Preliminary TLE's For Mondays Vega Launch

2012-02-12 Thread g0mrf
Hi Mark / group Thanks for that. If you've run the keps you will have seen that the satellites will be over the East Coast of the USA just 15 minutes after they start transmitting. AOS for the East coast is around 1 hour 50 minutes after launch. Some of the University ground stations will

[amsat-bb] Re: NASA's Edison Small Satellite Demonstration Program

2012-02-03 Thread G0MRF
But given that the opportunity is looking for proposals in the field of communications and propulsion, it sounds like a good chance to team up with one of the university groups who are working on miniature Ion engines. They are about 3 inches across and use as little as 36W. A 3U cube coul

[amsat-bb] Re: Phase 3 Express Launch Opportunities?

2012-01-27 Thread G0MRF
G0MRF In a message dated 27/01/2012 22:10:25 GMT Standard Time, n8...@usa.net writes: >2. China's Long March Serious ITAR problems... ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA memb

[amsat-bb] Re: Phase 3 Express Launch Opportunities?

2012-01-27 Thread G0MRF
Hi Dan. SurelyNo ITAR problems, as AMSAT-NA pulled out of the P3E development due to ITAR. Don't forget to add Iran or North Korea (Hi) David G0MRF In a message dated 27/01/2012 22:10:25 GMT Standard Time, n8...@usa.net writes: >2. China's Long March Serious

[amsat-bb] Re: Probably a silly idea...

2012-01-19 Thread G0MRF
the ability to do the job. - I always think of the scene from Life of Brian where small ineffective groups sit around plotting the overthrow of the Romans and just have endless meetings. Sad. Very sad. David G0MRF In a message dated 18/01/2012 21:04:43 GMT Standard Time, kl..

[amsat-bb] Re: Model Rocket Booster Engine for Picosatellite

2012-01-17 Thread G0MRF
ot so exciting after all. Time for a beer. 73 David G0MRF In a message dated 17/01/2012 03:56:37 GMT Standard Time, rhyol...@nettally.com writes: Has anyone seen this. I am surprised a shuttle mission permitted this type of booster. From what I believed, safety concerns prevented

[amsat-bb] Vega to launch in February

2012-01-10 Thread g0mrf
orbit, and will fly from the Kourou spaceport in French Guiana. The project has been led by Italian industry and is years behind on its original schedule. David G0MRF ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those o

[amsat-bb] Re: What Happened to the PacSats?

2012-01-04 Thread G0MRF
ission. I'm not sure the ARRL would like the idea issuing worked all continents awards for a QSO that takes 3 hours to complete, but it would be fun. 73 David G0MRF In a message dated 04/01/2012 21:08:55 GMT Standard Time, kayakfis...@gmail.com writes: I've been wonderi

[amsat-bb] Re: Preliminary Keplerarian elements for Vega launch

2012-01-04 Thread g0mrf
minutes. Thanks David G0MRF -Original Message- From: Andrew Glasbrenner To: amsat-bb Sent: Wed, 4 Jan 2012 18:21 Subject: [amsat-bb] Preliminary Keplerarian elements for Vega launch Does anyone have any preliminary keps for this one? I'm not so worried about whether the

[amsat-bb] Re: Arissat-1 reentry?

2012-01-04 Thread G0MRF
Hi David I heard that pass, and it seemed to be in low power mode, so on for 30 seconds and then off. It should be around for a few hours more. Thanks David G0MRF In a message dated 03/01/2012 17:34:39 GMT Standard Time, at746da...@gmail.com writes: Hello everybody: This is David

[amsat-bb] Re: MMSSTV and ARRISat-1

2011-12-30 Thread G0MRF
Hi Kirk. You need a very good signal to noise ration with that SSTV via FM. I've had OK (ish) pictures with a 3 element beam, but it's not ideal. Try a near overhead pass, it must be a lot closer now than it was 2 months ago when I last tried. 73 David G0MRF In a mes

[amsat-bb] Re: ARISSat : only a few more days !

2011-12-28 Thread G0MRF
Hi Roland. That is really impressive. May I reproduce your graphs for a display for our schools physics classes ?? Callsign left in place so they can 'google' your call. Many thanks David In a message dated 27/12/2011 23:14:39 GMT Standard Time, py4...@yahoo.com writes: With

[amsat-bb] Re: I STILL have a question!

2011-12-09 Thread G0MRF
Hi Frank. The next AMSAT satellite due for launch is likely to be Funcube from AMSAT-UK. It will be possible to donate to this project from later this month via the AMSAT-UK web site. UKube also carries a linear transponder, It's not an 'AMSAT' project, but the boards have been provided b

[amsat-bb] Re: LARES To Test Einstein's Theory

2011-12-08 Thread G0MRF
ever since. Maybe next time 73 David G0MRF In a message dated 08/12/2011 07:46:57 GMT Standard Time, w7...@comcast.net writes: can't we squeeze a little bird in there? Bob W7LRD - Original Message - From: "B J" To: "amsat-bb" Se

[amsat-bb] Fwd: sats to support

2011-12-04 Thread g0mrf
Next one ready to launch will probably be the AMSAT-UK 1U cubesat 'Funcube' with a linear transponder. Local to you will be Fox-1. Lets hope it qualifies for launch funding from an educational grant. Sadly the standard launch costs for P3E look to be impossible to fund, so we need

[amsat-bb] Re: VO-52 FM Operation???

2011-12-03 Thread g0mrf
Neither do you. Read, research absorb, consider and learn. - Then speak David G0MRF Whomever said they were promoting this kind of operation certainly did not know what the hell they were talking about. Kevin KF7MYK ___ Sent via AMSAT-BB

[amsat-bb] Re: In School ARSSat Demos / lessons

2011-11-20 Thread g0mrf
happening. We can't get AMSAT volunteers involved in anything more than a fraction of 1% of lessons, so perhaps AMSAT as product placement in lesson resources is a good second choice. Good luck David G0MRF What do you need? Classroom lessons abound for all aspects of amateur radio

[amsat-bb] Re: Technical discussions on AMSAT-BB......"an endangered spec...

2011-10-18 Thread G0MRF
although the board is small, it's not the cubesat format Thanks David G0MRF In a message dated 18/10/2011 17:59:20 GMT Standard Time, bruni...@usna.edu writes: > I'm curious, as someone who was involved in designing > a nanosatellite. What sort of payloads would be o

[amsat-bb] Re: Tracking program performance post chicken little date. (SatPC32 and GPredict)

2011-10-13 Thread g0mrf
rithms for auto changing decay rate or for including other variables like sunspot cycle. I believe these variables are accounted for in more advanced software like AGI Satellite tool kit (STK) Thanks David G0MRF -Original Message- From: Thomas Doyle To: amsat-bb Sent: Thu, 1

[amsat-bb] Re: Help

2011-09-23 Thread g0mrf
Hi. UARS is currently the most tracked object on www.n2yo.com The NASA object number is 21701 Current element set seems to be 639, but that probably gets updated quickly now Hope that helps David G0MRF -Original Message- From: George and Cheryl Abbott To: AMSAT BB Sent

[amsat-bb] Re: Amplifier Suggestions?

2011-09-21 Thread g0mrf
0 Watts is available in a single device. - RA07H4047M. cost is $23 but then a box and some relays and a LPF will be much more than that. Thanks David G0MRF -Original Message- From: James Cutler To: amsat-bb Sent: Wed, 21 Sep 2011 17:32 Subject: [amsat-bb] Amplifier Suggestion

[amsat-bb] ARISSat-1 battery

2011-08-29 Thread g0mrf
for 35 minutes) it looks like 20-25% depth of discharge for the >20Whr battery pack. That's probably OK for a 9 month mission ?? Thanks David G0MRF http://www.clyde-space.com/documents/1902 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed ar

[amsat-bb] Re: Arissat-1 signal

2011-08-25 Thread g0mrf
Last pass at 20.00 UTC was OK for signal strength, but on low power mode. Female announcement of RS0IS followed by male greetings message in Hebrew. David -Original Message- From: i8cvs To: Pete MI0VAX ; amsat-bb Sent: Thu, 25 Aug 2011 20:40 Subject: [amsat-bb] Re: Arissat-

[amsat-bb] Re: ISS Re-supply Spacecraft Fails

2011-08-24 Thread g0mrf
Here in London, we have free access to the Russia Today TV station. The launch failure is the major news item. They report it was due to a third stage failure. Even had an interview with an eye witness who said the area where it crashed was an area popular with people picking nuts in the summ

[amsat-bb] Re: ARISSat-1 Not Heard

2011-08-20 Thread g0mrf
Hello Nader. I heard the sat go into eclipse over Europe earlier in the evening. It appeared to shut down immediately it passed into darkness. The battery does not appear to have any capacity left. Perhaps all AMSAT spacecraft should be designed to operate on solar panels alone after the batt

[amsat-bb] ARISSat-1 Voice Telemetry again and again

2011-08-16 Thread g0mrf
Shouldn't all this telemetry reporting go to one of the ARISSSat-1 addresses and not the BB? David ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satelli

[amsat-bb] Re: Thinking about ARISSat-2

2011-08-14 Thread g0mrf
could be a maximum energy limit to the capacity to avoid fire / explosion. (e.g. there's a 100W/hr limit to some cubesat launches) Thanksand still enjoying ARISSat-1 David G0MRF -Original Message- From: Trevor . To: amsat-bb Sent: Sun, 14 Aug 2011 20:54 Subject: [am

[amsat-bb] Re: ARISSat-1 Power of each beacon

2011-08-09 Thread g0mrf
Hi Trevor FM 250mW BPSK 100mW CW 25mW SDX 125mW >From QST article thats available online. Regards David G0MRF I gather ARISSat-1's total power output is 500 milliwatts. How many milliwatts of that is allocated to each of these downlinks - FM transmitter - BPSK Beacon - C

[amsat-bb] Re: ARISSat TLM decoding using FCD

2011-08-08 Thread g0mrf
cult. - I'll wait for some daylight passes. Good luck David G0MRF -Original Message- From: PA3GUO To: amsat-bb Sent: Mon, 8 Aug 2011 10:41 Subject: [amsat-bb] ARISSat TLM decoding using FCD Just sharing the results of my recordings of last night: (using the FCD + H

[amsat-bb] ARISSat-1 02.55

2011-08-03 Thread g0mrf
and '2 Kursk frames' . (mission time 29997-30018) However, software forwarded zero frames via internet (?). If recording to a .wav file, CW positioned to be 500Hz seems to work well. Battery voltage around 33V status - charging. Thanks D

[amsat-bb] Re: ASISSAT-1 Returning to ISS

2011-08-03 Thread g0mrf
Hmmm. Was that a problem with the switches, or a missing antenna on the opposite side to the 2m ? Thanks David G0MRF -Original Message- From: Clint Bradford To: AMSAT BB Sent: Wed, 3 Aug 2011 16:39 Subject: [amsat-bb] ASISSAT-1 Returning to ISS Aborted deployment

[amsat-bb] Arissat-1 mode transistions

2011-08-02 Thread g0mrf
there a short delay? This could be very interesting as we can see the ISS going into sunlight and we should be able to hear when Arissat does the same and then measure the time difference (Arissat first ISS second hopefully) Thanks David G0MRF _

[amsat-bb] Re: Full Duplex?

2011-07-27 Thread g0mrf
transmitting at the same time. Full duplex radios are the exception, but well worth having. Another method is to use 2 simlex radios to get the same result. David G0MRF I'm having a difficult time of understanding the concept of Full Duplex. Can anyone explain it to me? I have the ARRL sate

[amsat-bb] Re: A Proposal for ARISS

2011-07-01 Thread g0mrf
Nice wish list Ed. A well thought out inventory of kit. I recall 2 years ago I had some communication with some current and ex-members of ARISS and came up with something similar. Unfortunately, and hopefully this has now changed, I was left with the impression that ARISS was not AMSAT. That

[amsat-bb] Re: SoCal to East Texas

2011-06-18 Thread G0MRF
ou will be limited to 20 minutes about 6 times a day. For a really long chat, 40m is probably best. - Start studying for that licence upgrade ! 73 David G0MRF In a message dated 19/06/2011 00:16:14 GMT Daylight Time, eric.f...@gmail.com writes: A Technician class friend of mine and I wou

[amsat-bb] Re: Nova Keps Update

2011-06-14 Thread G0MRF
Hi. This is causing some problem here too. Is it possible to download and then paste them into the NOVA database? - Perhaps as text files? David G0MRF In a message dated 14/06/2011 13:03:57 GMT Daylight Time, va3...@amsat.org writes: Hi Sven, Space-Track has changed and now

[amsat-bb] Re: new sat

2011-05-18 Thread G0MRF
$200,000 for something simple should do it. - If you're careful. David G0MRF In a message dated 18/05/2011 16:23:45 GMT Daylight Time, pisym...@gmail.com writes: Somebody just asked me, how much is it to develop/launch a new bird? Anybody care to share some concrete nu

[amsat-bb] ARISSat-1 update

2011-04-21 Thread G0MRF
This is an update on the ARISSat activities. We had a telecon with the ARISSat team in Russia. Here is the situation as described by them. The Russian suit battery that was intended to be used on ARISSat was used during testing both on the ground and onboard ISS when it first arrived. When it

[amsat-bb] Re: ANS-104 ANS Special Bulletin - ARISSat-1 Not Heard During Gaga...

2011-04-14 Thread G0MRF
Thanks for the update Gould. Clearly a frustrating time for all involved. I must have missed the announcement from AMSAT about the D-700 on 70cm. David G0MRF "As we are apprised of developments, we will share that information. " "The ARISS team was asked for a re

[amsat-bb] Re: ARISSat-1 battery.

2011-04-13 Thread G0MRF
Well found Matt Looks like the contents of page 9 highlight some potentially critical issues. Time will tell. David In a message dated 13/04/2011 20:11:43 GMT Daylight Time, sq7...@poczta.onet.pl writes: http://arissat1.org/media/pdf/ARISSat-1%20CDR%20Battery.pdf very interest

[amsat-bb] ARISSat-1 battery.

2011-04-13 Thread G0MRF
he main event is yet to come and as long as the designers have anticipated it being deployed with a completely flat battery, then we can all sit back and wait for July more prepared from this rehearsal than we would have been. Regards David G0MRF In a message dated 12/04/2011 21:13:

[amsat-bb] ARISSat-1 tlm decoder.

2011-04-11 Thread G0MRF
Hi all. I have a minor (probably operator error) with the TLM software. Is there a way to get the audio to feed through to the PC speakers? I've tried Spectran and Spectraview without problem, but the ARISSat software does not appear to send audio out on my system. I cant hear the radio

[amsat-bb] Yuri's 50th

2011-03-30 Thread G0MRF
llite please. Would be nice to have some time to load it onto the computer at a weekend and avoid the traditional last minute rush. BTW. Did it get recharged via a new lead on the last supply flight? (Will it last 24 hrs?) Thanks David

[amsat-bb] Re: AO-40 range record ??

2011-03-20 Thread G0MRF
o get from here in the UK to ZL. My local club also took equipment to ZC4 in Cyprus and C56 (Gambia) making about 200 QSOs from each location. DX-Peditioning was popular on the HEO sats. Happy days... Good luck with the talk David

[amsat-bb] Re: Kysat keps

2011-03-03 Thread G0MRF
I just hope NORAD release the official post launch keps via celestrack. Unlike the last Alaska launch. Never did get to the bottom of why that decision was made. Hopefully not a trend. David G0MRF In a message dated 03/03/2011 21:10:54 GMT Standard Time, summit...@live.com writes

[amsat-bb] Ariane launch to ISS

2011-02-16 Thread G0MRF
Tonights launch at 21.30 UTC Live coverage _http://www.videocorner.tv/index.htm_ (http://www.videocorner.tv/index.htm) David ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the

[amsat-bb] Re: ARISSat-1 test

2011-02-13 Thread G0MRF
I wonder if it will sit until July? After all the Russians KEDR name reflects the upcoming anniversary of Yuri Gagarin's flight into space. That was 50yrs ago on 12th April. So many questions David In a message dated 13/02/2011 08:28:12 GMT Daylight Time, orbit...@hotmail.com

[amsat-bb] Re: ARISSat-1 copied

2011-02-11 Thread G0MRF
In a message dated 11/02/2011 08:27:41 GMT Standard Time, ko6th_g...@hotmail.com writes: How long will it be in this mode? I didn't get much chance to tune around the passband to see if anything else was going on. Greg KO6TH Hi Nice to catch a little of the CW at 00.23UTC last ni

[amsat-bb] Re: ARISSat-1 - Dumb Question

2011-02-10 Thread G0MRF
decay must also add acceleration. (Gravity) 73 David G0MRF In a message dated 10/02/2011 05:26:00 GMT Standard Time, ko6th_g...@hotmail.com writes: From: g0...@aol.com > Date: Wed, 9 Feb 2011 15:45:36 -0500 > To: clintbradf...@mac.com; amsat-bb@amsat.org > Subject: [ams

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