[amsat-bb] Re: too many satellites
> > I never thought I'd even think this, but with the plethora of recently > launched satellites, a few with transponders and some with other > functions, there are just too many. Trying to keep track of all the > events is giving me a headache! Is there or can there be a single > place, web page etc where there is a concise depository of information? > Now it is just all over the place. I suppose I should just focus on a > few. > 73 Bob W7LRD How about 60 satellites next year ?? A hatch... ;-) -jari oh3uw ___ 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: 2 Metre Noise : was RE: Re: Keplerian Elements for FUNCUBE 1
> > Stefan and Mark, > 90% of the "crud" on 2 metres comes from my Cable Modem / Router. > Lucky so far Funcube and N3XT are in the clear. > Colin VK5HI. > Hi all, Replace the switch mode wall mount power supply with transformer power supply and coil the extra power cord with ferrite. Most of the common mode noise can be eliminated. There are still switch mode regulators and oscillators inside modem/router/hub that can radiate birdies. Clamp the Ethernet cables also with a ferrite clamp so there is no more "antennas". -jari oh3uw ___ 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: NASA-TV coverage of tonight's launch of multiple student CubeSats begins at 6:30 PM
> > That's 6:30PM Atlantic ... 3:30PM Pacific ... > > Clint > > That's 11:30 UTC... ?? -jari oh3uw ___ 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: Circular Polarization with Two Yagis (Spacing)
Hello All, Here is Mak's excellent circular polarization page: http://sv1bsx.50webs.com/antenna-pol/polarization.html -jari oh3uw ___ 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: transponder
> Hello > I'm doing some experiments and I wonder if anyone has some scheme of a > Linear Transponder VHF - UHF to provide me. > Now appreciate any help. > Thanks. > Paulo PU2PHK > Brasil > > Hello! This is one ready to fly analog transponder: http://www.qsl.net/pe1rah/LE002.htm -jari oh3uw ___ 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: EU members - UHF contest tonight?
> Just now on AO-7 I heard a terrestrial station (DL on LSB) working a contest > of some sort. He was pretty weak here, but thought I copied G4VF? His > frequency would have been 432.160 or so. Always interesting hearing the > unintentional sat ops...reminds me of RS-12/13. > > 73, Drew KO4MA > > There was a Nordic VUSHF-Activity Contest going on last tuesday. NAC-contest is periodically every tuesday on 18:00 - 22:00 UTC. Every first tuesday a month is 144MHz, second tuesday 432MHz, third Tuesday 1296, fourth tuesday 2,3GHz and UP. There are also many european contest at the same time. So the contest stations were uplinked unintentionally by AO-7. -jari oh3uw ___ 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: FITSAT-1 heard!
> ... in Germany as well, low 6 deg elev. pass :-) > > > 73 Mike > DK3WN > Even in Finland with GP antenna, low degree epelvation pass. Good signal. I didn't write telemetry down... There was also another satellite 1 kHz upper in freq heard that sends CW-telemetry. Much weaker sending numbers. Copied callsign JA6PL? -jari oh3uw ___ 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: European Lunar Lander - Call for Declarations
Hi all There is nothing much to do with 20W mean power. Just a 5W pep beacon... -jari oh3uw > Hi Stefan VE4NSA, Peter DB2OS and folks on BB > > It should be very nice to have a transponder on the Lunar Lander operating > into the X/K band 10,5 GHz Uplink and 24 GHz downlink. As on AO40 the antennas > are very small and probably there is room for a transponder. > > For a good feasibility and assesment with ESA it would be very important to > have also a 24 GHz Beacon relaying to us TLM data concerning some primary ESA > experiments. > > Just my idea. > > 73" de > > i8CVS Domenico > ___ 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: European Lunar Lander - Call for Declarations
> > I disagree about having to have a EME class station if we put a > transponder on the moon. > The reason being, since the same side is always facing the earth, a > directional high gain antenna may be used on the transponder itself! > > Lee > W5LMM How big antenna and what band should be used? Please calculate the best combination here: http://www.changpuak.ch/electronics/calc_10.php Note that you need about -120dBm signal to be heard in receiver. The path is about 40km (24 miles). -jari oh3uw ;-) ___ 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: ARISSat-1 Certificate Team
Hello! Here is a link to the ARISSat-1 Reception Certificates homepage. http://arissat1.org/v3/index.php?option=com_content&view=category&layout=blo g&id=61&Itemid=137 Sad there is no certificate available for Digital telemetry... 73 Jari OH3UW > > I received a certificate today and a friend of mine was wondering if > they where still giving them out. I forgot where I sent my pics and > stuff from ARISSat-1 to. Does anyone have info on that? > > Thanks. > > Kevin > KF7MYK > ___ 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] ARISSat-1 heard
I heard ARISSat-1 loud and clear at 15:55 UTC pass. Did not decode any telemetry due to bad sound card setup :( Data transmission and CW sounded very healthy indeed. -jari oh3uw ___ 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: Etching a KLM RHCP/LHCP PCB
> I've completed and etched one side#1 of the PCB with Press and Peel. > > Side#2 needs to be etched. the artwork is very basic and can be completed by > hand and Rub-On Etch Resist. I had to drill 8 alignment holes to help line up > the artwork to each side. > > Question #1: > I don't want the etching solution to leach through the holes. I had some > donuts to cover the holes, but they are so old that the glue is no good. Is > there anything that can temporarily fill or cover the holes until side #2 is > completed? > > Question #2: > Has anyone used clear packing tape to cover the areas where the copper is to > be protected or will the etching solution just eat it up with the copper? > Hello! I have used contact paper, ie "sticky-backed plastic" for protection. It will resist even Hydroclorid acid/hydrogen peroxide etching mixture. Just press the edges carefully. -jari oh3uw > You have to admit this isn't a typical AMSAT-BB question. In projects before > this, I just used side #2 as the ground plane. > > 73, > > Mike (K9QHO) > > > ___ 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: Mirage preamps
>> >> There is also another possible issue to consider in that the 847 when >> first powered up sends a full power transmit for a very short time. > As does all those 800-series YAESUs... 8-( Very bad ALC-circuit. Some of them having longer delay --> longer pulse out. > > Could be this is the missing link explaining why i burn 2 preamp in the > past? but i always put the power knob at minimum when i turned > off the 847. I will have to test it as i measure about 5W even if the RF power > is set to 0!! Full power i'm not sure but even 5W is enough > to kill a preamp > > Luc Leblanc VE2DWE > -jari oh3uw ___ 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: SP-2000 Preamp?
> Hi, > > I've been listening on a couple of ARISSat-1 passes, both with the bird in > sunlight. The first time I vaguely heard what might have been a voice. The > second time (and this one was 80 or 85 degrees elevation) I could clearly > hear that there was a voice, but could not understand, although some of the > pattern sounded like the call sign being announced. I may have heard a bit > of SSTV too; not sure. I'm listening with a Kenwood handheld, sometimes > with a 1/4 after-market antenna, sometimes with a 2M eggbeater. > > So clearly I need something better. Since I can pick up the ISS well > enough, I think I probably need a preamp. Maybe if I were retired and had > more time, I'd build one, but for now, I'm thinking to go for the top-end; > that appears to be an SSB Electronics SP-2000. But so far, no answer nor > return call on my message to SSB. Does anyone know of a different place to > buy these things, or do they only feel through their rep? How about second > hand? Anyone looking to sell one? > > Of course any other suggestions welcome too... > > Thanks and 73, > > Burns, W2BFJ > ___ Here: http://www.wimo.de/framesetp_e.html -jari oh3uw ___ 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] VS: VS: ARISSatTLM
> > > I was also having trouble getting telemetry. Signal was quite strong > and > all indicators was within range. The telemetry and CW stopped twice > within > pass. CW was decoded but maybe the deep QSB made some impact to the > telemetry. > I have 2x 17 el horizontal yagis, FT-847 and Realtek AC97 audio system. > Sampe rate was 44.1 kHz. > Next time I try Edirol UA-1 USB sound card. Have to set alarm clock at > 4 am > local time as this is the only time ISS is well above horizon... :-) > > And please try the ARISSatTLM software and decode some frames as it is > no > help if you just say you can hear some noise... > > -jari oh3uw > Hi all, It was a soundcard issue. With Edirol UA-1 I was able to decode 13 frames although I have no audio to monitor, just the TLM-spectrum and ARISSat went silent twice. Those were long minutes... Anyway, now I have to examine what makes Realtek audio crab... It used to play fine, even EME with WSJT. 73' jari oh3uw ___ 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] VS: ARISSatTLM
> > I'm having trouble getting telemetry. > ARISSatTLM will see the signal on the Tuning Indicator and I have tuned > the CW signal everywhere from the yellow mark to the top and bottom of > the blue range. > It decodes the CW fine in the Morse Code Decoder window but nothing > ever > shows up in the Telemetry As Text or ARISSatTLM main window. > The orange indicator is following something, usually hanging around the > middle of the orange line range when there is a signal. > Any thoughts? Windows Vista SP2 with M-Audio Delta44 sound card set > for > 48000Hz sample rate. > > Thanks! > Jerry > N0JY > I was also having trouble getting telemetry. Signal was quite strong and all indicators was within range. The telemetry and CW stopped twice within pass. CW was decoded but maybe the deep QSB made some impact to the telemetry. I have 2x 17 el horizontal yagis, FT-847 and Realtek AC97 audio system. Sampe rate was 44.1 kHz. Next time I try Edirol UA-1 USB sound card. Have to set alarm clock at 4 am local time as this is the only time ISS is well above horizon... :-) And please try the ARISSatTLM software and decode some frames as it is no help if you just say you can hear some noise... -jari oh3uw ___ 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: SSB Operation on the satellites.
> I am new to the satellites. Got to where I can hear my downlink if the > bird is > higher than 15 degrees. My question is about handling the doppler shift. > > If you do not have a sat program automatically correcting you rig > frequency, > what is the most common or preffered technique? 1 - Hold the TX steady > and adj > the RX for doppler or 2- Hold the RX steady and adjust the TX for > doppler? I > know this must be a basic question but I am learning. Thanks, > > Doug > K9DLP Hi! Good question. Hold the TX steady and adjust the RX. If You adjust TX, the other guy have to adjust also his RX and then his TX... a mess. It is much easier if everybody adjust only his own RX and keeps TX steady. 73 Jari OH3UW ___ 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: fo-29
> so I know you all will laugh at me but what inverting means lsb down usb > up is this correct It means that the signal sideband is inverting upside down in the satellite. It inverts USB to LSB and LSB to USB. It also change your frequency polarity. If you increase your frequency at the uplink, it will get downwards the same amount at the downlink. It is "mirroring" all signals. And converting them to an other band at the same time. :) -jari oh3uw ___ 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: AO-7 is not OK
> > > Hi Piraja, > > Yes, I made similar observations. If the CW is active on 70cm you can hear > sometimes a very strong deviation in frequency. > The CW beacon partly not decodable. I agree with you it could be an effect > by low batteries or due heavy usage. > See some graphs here: http://www.dk3wn.info/p/?cat=21 > > 73, Mike > DK3WN > Hi gang! There is no battery left in AO-7. All the current is generated by solar panels and the only "power buffer" is the capacitors in the regulator board. This may cause the voltage drop that also affects to output power and shifts oscillators. The solar panels are quite old too... 73, Jari oh3uw ___ Sent via amsat...@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: Moon
> > Little help. > Where in SAT32 do I look for SuM for moon tracking. > Also looking for suggestions as to the best way to record SAT > contact from head set out put using sat 32 and a 910 radio. > Thanks > Jack WA1ZDV In Orbitron there is selection TARGET. Choose there MOON. -jari oh3uw ___ Sent via amsat...@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: 847 PL problems
> > > I just noticed that my FT-847 is having a problem with PL tones. > There are a > few things happening... > It seems to want to stay only in a PL of 67.0. When I try to operate on > SO-67 that has a PL of 233.6, I can't get into the bird, unless I > tailgate. > As it seems to default to a PL of 67.0 I can work SO-50 no problem. I > checked all my cables, and also went to a different software > control program > and it all points to a problem with my 847. After some testing with > different PL's, using another radio with TQSL set, it seems that when in > Satellite mode my 847 will only transmit a PL of 67. I've had my 847 I > bought new since 1997 and I never had a problem with This. When I > look back > I can't remember when I needed any other PL other then 67.0, > except 74.4 to > open up SO-50, last time about 3 years ago. Before I try a full reset I > thought I would ask here, to make sure I'm not missing anything > stupid... > > > 73 Jeff kb2m > > Hi Press the MENU button, rotate the SUB-TUNE knob to select Menu #12, That is "TONE-FRQ". Then rotate the MEM/VFO CH knob to set the right PL. Then press the MENU again to exit. To activate PL just select FM-mode and press the grey TONE knob (3). There is a sign ENC visible. You can check that the PL is correct by pressing the MENU again. IF not, just rotate the MEM/VFO CH knob. If that doesn't work out, maybe the memory backup battery has run out of juice. Check also the position of the battery backup switch. 73' -Jari oh3uw ___ Sent via amsat...@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: XW-1 Decoder
> > > Anyone put together software to decode the XW-1 beacon yet? > Sorry if someone already mentioned .. Still reading thru my emails.. > Lots of TTT .. Is that normal? > Oh and is china interested in emails with received telemetry? > > Randy > Software? For receiving CW? Here is a link for telemetry decoding: http://www.camsat.cn/index.php?option=com_phocadownload&view=category&id=1:x w-1&download=1:xw-1-telemetry&Itemid=66 The CW looks like a contest numbering :) -jari oh3uw ___ Sent via amsat...@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: XW-1 FM voice no work over Australia
Pse look: XW-1 FM and digital store-forwarded transponder ON at 1205UTC OFF at 1352UTC on Dec. 18 2009 Hold Your Horses Gentlemen, and wait for next schedule :) -jari oh3uw ___ Sent via amsat...@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: Grid Square Maps
> > Back in my county-hunting days I had purchased, from somewhere, a poster > size black on white map of the continental USA with all counties shown. As > each county was confirmed I could "color in" that county with a felt-tip > marker. So I could quickly see if I needed a county heard on the air. > > Is anyone aware of a similar commercially available map for the USA that > shows grid squares which could be colored in as they were confirmed? How > about for Europe or other areas? > > Thanks. > Tom, KØTW > > Here: http://www.oema.us/files/Amateur_Radio_US_Grid_Square_Map.pdf or create your own: http://www.qsl.net/ve6yp/index.html 73s Jari OH3UW ___ Sent via amsat...@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: Can we get them to fix AO-40 first then?
> I'm no expert on AO-40, but to the best of my knowledge, the solar panels > are not retractable - they are fixed in place. The satellite cannot be > commanded "on", as the shorted batteries shunt virtually all of the solar > panel output, such that either the command receiver is not operating at > all, > or there is simply not enough juice to switch anything. Our best hope is > that someday, the batteries will fail open, just as AO-7's batteries did, > and AO-40 comes back to life when adequately illuminated. > > George, KA3HSW > Four of the solar panels are retractable but not released. Please see some old pictures. As the orientation of AO-40 is not known it is better that the panels are kept around the satellite. If they still exists... There is enough power from a single panel to run IHU and some beacon if the bus wires and electronics are not damaged. Some sensors indicated that sun is shining into the satellite so there may be big hole(s) in it. Not sure about that raport though. Have to check out that. The beacons were loud with the omnis and data was easily received with rubber duck and hand held radio. Miss that fine telemetry sound. I have allways said that the world would be different if AO-40 were alive. Jari, OH3UW ___ Sent via amsat...@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
