Moon-net September 2011

moon-net@mailman.pe1itr.com

146 participants
176 discussions

by Lars-G. Jarelund

I have this QRO-amplifier for sale but because of the weight and size, only local pickup is possible. Think ít´s only interesting for amateurs located in Sweden. It is advertised on: http://www.dx-radio.se/?an=3402 Lars SM5DCX

10 years, 5 months

Re: [Moon-net] [Moon] Design Ideas for a Moon beacon, delivered during X prize

by Steve Gross-N4PZ

We have enough RF polution without putting some more on the moon where if it goes bad nobody can shut it down. Very bad idea. Life is not a dress rehearsal. La vida no es un ensayo. From: sm4ive(a)telia.com To: apolloeme(a)gmail.com Date: Thu, 29 Sep 2011 12:11:27 +0200 CC: moon(a)moonbounce.info. Subject: Re: [Moon] Design Ideas for a Moon beacon, delivered during X prize NO NO thanks but nothing on the moon, we dont need any stuff that can destroy our hobby. Lars SM4IVE ----- Original Message ----- From: Patrick Barthelow To: moon(a)moonbounce.info ; moon-net(a)mailman.pe1itr.com ; k6bj(a)k6bj.org Sent: Wednesday, September 28, 2011 8:47 PM Subject: [Moon] Design Ideas for a Moon beacon, delivered during X prize Friends, In about 18 months it is likely that the first Lunar X prize team will launch their mission to land a rover on the moon. After that, for about 3 years, every 3 months or so, another moon shot will occur in pursuit of the X prize. A science outreach program is being brainstormed at the moment, that could generate a lot of participation by the Moonbounce community. One of the ideas tossed around now is, convincing the X prize teams to design their existing radio communications equipment, including SDRs, on the surface, to be converted to a "Moon Beacon Mode" by default at the end of their X-prize mission. Maybe that could be done at little cost to the teams. Something like a constant receiving ear on the moon that can respond to heard carriers, in a desired way to let the EME community know that they are being heard. Perhaps Cross band, sort of a remote base, an active transponder. It might be really helpful to have an active ping returned when you are debugging your EME system, and looking for your first echoes. If this is interesting to the EME community, I would like some EME brain trust ideas on a design for such a beacon. Input frequency Bands, output frequencies. Beacon Messages, etc... what say? -- Best, 73, Pat Barthelow, apolloeme(a)gmail.com _______________________________________________ Moon mailing list Moon(a)moonbounce.info http://www.moonbounce.info/mailman/listinfo/moon Please enter/update your standings: http://www.vhf-dx.net/top.html When you decide to remain anonymous I may consider this unpolite and remove you from the list _______________________________________________ Moon mailing list Moon(a)moonbounce.info http://www.moonbounce.info/mailman/listinfo/moon Please enter/update your standings: http://www.vhf-dx.net/top.html When you decide to remain anonymous I may consider this unpolite and remove you from the list

11 years, 8 months

Goodbye Moon-net de G3LTF

by peter blair

Folks, Just back from a few days holiday.....checking moon-net....why do I want to read such stuff as the two quotes below? Answer, I don't even want the bother of deleting this ill informed rubbish anymore, just keep all your stupid remarks to yourselves. Goodbye, 73 Peter G3LTF K5QE ...... SATIRE MODE ON It is clear that such a weak signal source for 1296MHz should not be done. The current 1296 EME operators do not need any help with their systems and they certainly don't want any new operators on that band....especially if they are newbies or beginners that might need some help. IK5QLO.....Working with young people (a category unknown among EMErs ranks)

11 years, 8 months

September EME report OK1KIR

by vladimir.masek＠volny.cz

FYI: September EME at OK1KIR On 432 Mhz while waiting for xped 7P8 on 17/18.09.2011 wkd in JT65 DF3RL, RK9AT(#), K7QX, PE1RDP(#), EA5CJ (#), PY2BS (#), PA0PLY (#),LZ1DX and DL7APV. Furthermore in CW LZ1DX. No success with 7P8EME due to terrible wideband QRM in eastern MR. However on 20.09.2011 in western MS w/o that QRM we wkd quite easy 7P8EME {# 62} as our new DXCC. On 1296 MHz 16.09.2011 wkd in JT65 xped 7P8HP (#) and DXCC, OK1CS (#92) and JA6AHB. In CW wkd OK1CS (#321) and LZ1DX. On 19.09.2011 in JT65 wkd VK4CDI. On 2304 MHz 25.09.2011 in CW wkd LZ1DX, OZ4MM,ON5TA (#112) and PA7JB (#113). On 10 GHz 24.09.2011 in CW wkd UR7D (#60) and DXCC#24, G4NNS, F1PYR and IK2RTI. On 25.09.2011 wkd UR7D,SP7JSG, very strong DLOEF 2xSSB, WA6PY a DL7YC( #61) wwhen polarization rotated to horizontal. JA1WQF hrd us „O“ even when having trees in front of his 1.8m dish, unfortunately still waiting for official licence approval. Moon noise measured 2.8dB. On 24 GHz 17.09.2011 trial in JT4G with G4NNS, signals on “waterfall”, but no decode on both sides due to Moon in apogee, too weak signals, high libration (big spread). High humidity during improper test time at low Moon elevation further degraded path loss. On 23.09.2011 the test repeated in day time (much lower humidity on our side). However still big spread and high Doppler complicated proper tuning. Nevertheless G4NNS obtained one decode, while we none It would need stronger signals. CW tested w/o success (unable to copy). After the test measured Moon noise 1.9dB (EL 37deg), Sun 13.6dB (SF155, EL 39deg), G/CS 2.7dB (lowest value ever measured). More on www.ok1kir.cz. In ARRL contest on 24GHz on Sat 24.09. completed 3 QSO : DL7YC,G4NNS and W5LUA. On Sun, 25.09. addend LX1DB (strong signal). Total score 400 x 4 = 1600 pts. Must note that after deleting 2.3 GHz and up category we lost motivation to jump from one MW band to another to catch maximum QSOs on each band and taking high risk of a damage due to hurry and time stress. So we changed the bands much slowly seeking new stations only. Actually operating 5 MW bands with one dish in relatively short mutual Moon windows is a bit useless and by our opinion almost does not support MW activity, esp. on higher bands. AWs perform in that issue much better. 73 Vlada&Tonda, OK1KIR

11 years, 8 months

2304 and Above EME Contest

by Al Ward

Hello EMEers I too was quite surprised to find out there is no category for 2304 and Above. However, it does not matter as I only operate during a contest to work friends and new stations. I am probably part of the 90 percentile that don't care to enter a contest anyway. So here is my report by band starting at 24 GHz. 24 GHz DL7YC #10, OK1KIR, and G4NNS 10 GHz W3SZ #76, DL0EF, F2TU, UR7D #77 5760 MHz SV1BTR #47, K5GW, F2TU, G3LTF 3400 MHz K5GW, K1JT, G3LTF 2304/2320 MHz VE6TA, K5GW, F2TU, K1JT, CT1DMK, SM3BYA, PA7JB, G4CCH, OZ4MM, WD5AGO I was happy to activate the 5 microwave bands but it is a lot of work considering one must change feeds. Coordination is always difficult. We need more weekensds for microwave but I feel that no one is listening. Best 73 Al W5LUA

11 years, 8 months

Design Ideas for a Moon beacon, delivered during X prize

by Patrick Barthelow

Friends, In about 18 months it is likely that the first Lunar X prize team will launch their mission to land a rover on the moon. After that, for about 3 years, every 3 months or so, another moon shot will occur in pursuit of the X prize. A science outreach program is being brainstormed at the moment, that could generate a lot of participation by the Moonbounce community. One of the ideas tossed around now is, convincing the X prize teams to design their existing radio communications equipment, including SDRs, on the surface, to be converted to a "Moon Beacon Mode" by default at the end of their X-prize mission. Maybe that could be done at little cost to the teams. Something like a constant receiving ear on the moon that can respond to heard carriers, in a desired way to let the EME community know that they are being heard. Perhaps Cross band, sort of a remote base, an active transponder. It might be really helpful to have an active ping returned when you are debugging your EME system, and looking for your first echoes. If this is interesting to the EME community, I would like some EME brain trust ideas on a design for such a beacon. Input frequency Bands, output frequencies. Beacon Messages, etc... what say? -- Best, 73, Pat Barthelow, apolloeme(a)gmail.com

11 years, 8 months

Diversity reception

by steve＠k5dog.com

11 years, 8 months

VHF Amp

by Ian McCloy

Thanks to all who responded for to my want for low powered vhf amp. Found the perfect one a small TE AMP Thanks Again Ian VE7IRA

11 years, 8 months

Re: [Moon-net] Weak signal source on the moon...

by Ray James

From: Marshall Williams <k5qe(a)sabinenet.com> Subject: [Moon-net] Weak signal source on the moon... Wrote: >Using a frequency like 432.300MHz and 144.300MHz would insure that no interference occurred to any current EME activities. For your information Marshall, 144.300 is the 2m SSB calling frequency for Europe and Africa! 73 Ray GM4CXM

11 years, 8 months

Weak Signal source frequency

by Marshall Williams

Hello everyone....I have been informed that my wild guess of 144.300MHz is the calling frequency for Europe and Africa. OUCH!! Apparently, I made a very poor suggestion for the frequency of such a weak signal source(if it ever happens). I am sure that with some study, a frequency could be found on some "clear" frequency. 144.300MHz seemed like such a nice frequency....nice round numbers and easy to remember. Well, I guess it is REAL easy to remember in Europe and Africa. Sorry about that..... 73 Marshall K5QE

11 years, 8 months

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Moon-net September 2011