April 2010 - AMSAT-BB - mailman.amsat.org

Sounds for wisp
by Vincenzo Mone 24 Apr '10

24 Apr '10

Hi folks, anybody has or can tell me where to find the wave files that announce the incoming satellites for the wisp program? I mean also the ones for the new birds Launched recently. Thanks in advanced 73 de Enzo IK8OZV EasyLog 5 BetaTester EasyLog PDA BetaTester WinBollet BetaTester D.C.I. CheckPoint Regione Campania Skype: ik8ozv8520 *************************************** ***** GSM +39 338 9749786 ***** ***** SMS +39 338 9749786 ***** ***** FAX +39 328 7244294 ***** *** 2nd e-mail: vimone(a)tin.it *** ***************************************

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SO-67
by Vincenzo Mone 24 Apr '10

24 Apr '10

Hello to all, right a few seconds ago I had a good pass of SO-67 but unfortunately I did not hear nothing on the frequency of 435.345 on FM mode. Please I would like to know if it is alive or not. Can I hear something? Thanks in advance. 73 de Enzo IK8OZV EasyLog 5 BetaTester EasyLog PDA BetaTester WinBollet BetaTester D.C.I. CheckPoint Regione Campania Skype: ik8ozv8520 *************************************** ***** GSM +39 338 9749786 ***** ***** SMS +39 338 9749786 ***** ***** FAX +39 328 7244294 ***** *** 2nd e-mail: vimone(a)tin.it *** ***************************************

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x37b
by don 24 Apr '10

24 Apr '10

Has any one any info on this? Seems that it can change orbit parameters on command and may be able to stay in orbit, of one sort or another, for up to "270 days", and is designed to replace the space shuttle for "military" applications. No, I'm far from anti military, just interested in the technology that seems to have been developed by NASA and taken over by the USAF......... Cheers, Don ZL1THO

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AO-51 MODE V/S
by Luc Leblanc 23 Apr '10

23 Apr '10

I was alone on the first morning pass and 2 stations on the second one. Signal from AOS to LOS where booming on 2.4 with near 30db at TCA on an overhead pass. W1AW was calling on a couple of pass but they seems to don't hear anything N5UXT was also trying to call him with no success. Could be someone can call them to check if they listen to the correct downlink frequency or they have an issue on 2.4Ghz. Great mode but a bit quiet "-" Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE

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Fwd: [PNWVHFS] FS... MORE SRRING CLEANING...
by Bob- W7LRD 23 Apr '10

23 Apr '10

I am not connected with this fellow. Just passing this email along, some stuff usable for satellite ops. 73 Bob W7LRD ----- Forwarded Message ----- From: n6eq(a)juno.com To: vhf(a)w6yx.stanford.edu, wswss(a)mailman.qth.net, PNWVHFS(a)googlegroups.com, icom(a)mailman.qth.net Sent: Friday, April 23, 2010 2:02:20 PM GMT -08:00 US/Canada Pacific Subject: [PNWVHFS] FS... MORE SRRING CLEANING... I have the following for sale: 1. ICOM IC-7000... hf/6/2/440 mobile in excellent condition. 1 year old... Manual, 12 volt pwr cord, Hand microphone, $950.00 2. Samlex Sec 1223... Switching dc power supply 23 amp at 13.8 Vdc. Brand new in the box $75.00 3. T.E System 4452G 430-440 Mhz. solid state amp in good condition 25 watts input 180 output. $450.00 4. IC-W32A H.T in good condition... Comes with Maha MH-A302 docking power booster amplifer, 144/440 input 1-5 watts 30 watts output 12v dc. No manual. $185.00 5. 2 ea. Ameritron RCS-8V antenna relay boxes that mount at the tower, no in door control unit. $50.00 ea. 6. SSB SP-2000 Mast mounted 2 meter pre amp $150.00 Prices don't include shipping 7 3 de N6EQ Chuck (760) 948-9025 ____________________________________________________________ Save with Skype Unlimited calls to 40+ countries starting at $5.95 per month. skype.com skype.com -- ~The Voice of the Pacific NorthWest VHF Society~ You received this message because you are subscribed to the Google Groups "PNWVHFS" group. To post to this group, send email to PNWVHFS(a)googlegroups.com To unsubscribe from this group, send email to PNWVHFS-unsubscribe(a)googlegroups.com For more options, visit this group at http://groups.google.com/group/PNWVHFS

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Re: AMSAT-BB Digest, Vol 5, Issue 185
by Bob DeVarney W1ICW 23 Apr '10

23 Apr '10

Congrats, Loren. That's quite an accomplishment for a portable setup. Just as a yardstick, I got SAT VUCC # 64 back in November of 1996 so you are definitely in exalted company ;-) It's actually quite surprising there aren't more VUCCs done in that length of time. I wonder what the League's statistics are for the "regular" VUCC. Moreover, I wonder how many Satellite WAS or WAC awards have been issued since the 90s. I got sat WAS #299 in December 2004.. WAC is dated 1993, but I wonder if it can even be done now with the current crop of satellites. In the Oscar 10 or -13 days you could almost work it in a single pass. Has anyone heard if a sat DXCC has been done any time in the recent past? BTW, this is your opportunity, guys and gals on the -BB, to beat me up if I owe anyone a QSL card... I am coming out of a long hiatus so I'll put priority on returning those cards that people are really waiting on. Some random, Friday morning musings de Bob W1ICW ( the sat operator formerly known as WE1U ) ________________________________ > From: LOREN RASMUSSEN <lorenrasmussen(a)msn.com> > To: amsat-bb(a)amsat.org > Sent: Thu, April 22, 2010 1:48:49 PM > Subject: [amsat-bb] Satellite VUCC # 194 > > It came in the mail today. It took from > November 2009 through February 2010. > About 600 QSOs. FT-60R and an Arrow. > 36 states confirmed. > Thank you all that returned cards. > Yeah, I'm jazzed. > 73 > Loren > k7cwq > CN94 > > -- "I love the freedoms we got in this country, I appreciate your freedom to burn your flag if you want to, but I really appreciate my right to bear arms so I can shoot you if you try to burn mine." Johnny Cash from "Ragged Old Flag"

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Re: UHF/VHF Polarization Switch
by Bruce Semple 23 Apr '10

23 Apr '10

It just supports switching between RHCP and LHCP. Bruce WA3SWJ At 02:48 PM 4/23/2010, you wrote: >Is this M2 mod for LHCP or RHCL only, or are the linear >polarizations possible also ? > >Stan, W1LE > > >On 4/22/2010 9:31 PM, Bruce Semple wrote: >>Pete - >>I have had one for about 1 1/2 years - on the 70cm antenna. >>When the GO-32 9K6 BBS board was up it made the difference between >>reliably receiving and not. >>(I am working on getting on the AO-51 BBS) >>I know S meter readings are all relative -- I usually see at least >>+20 when the polarization is correct. >>I have roof mounted antennas so I was able to do the modification >>without taking the antenna down. >>I did shift the antenna mounting position on the boom to account for >>the extra length/weight. >>During installation checkout - I did have an issue with the >>protection diode that was installed across the relay -- I had to replace it. >>Other than that -- it has worked fine. >> >>73, >>Bruce >>WA3SWJ >> >> >> >>At 10:48 AM 4/22/2010, you wrote: >> >>>Hello, >>> >>>I've been asked by a club member if anyone has any experience using an M2 >>>VHF/UHF Polarization Switch, and what their opinion of it may be. I can't >>>seem to find any reviews on field performance, thank you. >>> >>>73's Pete >>>WB2OQQ >>>www.massapequanyweather.com >>> >>>_______________________________________________ >>>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 >>> >> >>_______________________________________________ >>Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. >>Not an AMSAT-NA member? Join now to support the amateur satellite program! >>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb >> >> >

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Satellite VUCC # 194
by LOREN RASMUSSEN 23 Apr '10

23 Apr '10

It came in the mail today. It took from November 2009 through February 2010. About 600 QSOs. FT-60R and an Arrow. 36 states confirmed. Thank you all that returned cards. Yeah, I'm jazzed. 73 Loren k7cwq CN94

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Wanted: Yaesu G-5400B azimuth rotor
by George Henry 23 Apr '10

23 Apr '10

Well, Yaesu just called to say that my azimuth rotor is unrepairable... So, surely someone on the list must have one laying around that they would be willing to part with? (just the az rotor...) Please reply off-list Thanks! George, KA3HSW

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Was: Arecibo, now confusing math
by Andrew Glasbrenner 23 Apr '10

23 Apr '10

If you really want to bang your head against the wall at how man can't agree on anything, take a look at the concept of long and short scales: http://en.wikipedia.org/wiki/Long_and_short_scales Anyone who has worked with big numbers and old data just loves this one. 73, Drew KO4MA -----Original Message----- >From: Bruce Robertson <ve9qrp(a)gmail.com> >Sent: Apr 23, 2010 7:30 AM >To: Idle-Tyme <nss(a)mwt.net> >Cc: AMSAT-BB <amsat-bb(a)amsat.org>, Sil - ZL2CIA <zl2cia(a)amsat.org> >Subject: [amsat-bb] Re: Arecibo on 432 MHz Moon Bounce (some calculations) > >Just to add to this discussion of decimal separators, my Canadian >province of New Brunswick is bilingual, and therefore has overlapping >French-speaking and English-speaking school boards. Those in the >French schools and the 30% of the English who have opted to be taught >in French immersion express pi as 3,14, while in English education >they express it as 3.14. I always do a double-take when I see the >comma there in my kids' homework, but they are very comfortable with >using either system depending on the language of discussion. > >73, Bruce >VE9QRP > >On Thu, Apr 22, 2010 at 4:58 PM, Idle-Tyme <nss(a)mwt.net> wrote: >> Wow that's all messed up? >> I'm 52 and this is the very first time i have ever seen anything like >> this and i have been dealing with science worldwide all my life. wow. >> >> Joe >> >> The Original Rolling Ball Clock >> Idle Tyme >> Idle-Tyme.com >> http://www.idle-tyme.com >> >> On 4/22/2010 1:14 PM, Sil - ZL2CIA wrote: >>> Idle-Tyme wrote: >>>> On 4/21/2010 8:25 PM, i8cvs wrote: >>>>>> Comma or no comma, shouldn't matter >>>>>> 1000 mega watts or 1,000 Mega watts is still one thousand million >>>>>> watts! NOT one thousands watts. true? >>>>>> >>>>>> The Original Rolling Ball Clock >>>>>> Idle Tyme >>>>>> Idle-Tyme.com >>>>>> http://www.idle-tyme.com >>>>>> >>>>> Hi Idle-Tyme >>>>> >>>>> I don't agree with your statement: >>>>> >>>>> 1000 mega watt are one thousand million watt >>>>> 1,000 mega watt or 1.000 mega watt is only one million watt because >>>>> zero after the comma means nothing like 1,0000000000000 is still >>>>> one million watt or 1 MW >>>> NO! it's a comma, not a decimal point! it's one thousand, one >>>> thousand written 1000 or 1,000 is still one thousand they are exactly >>>> the same. >>> That's only true in the English speaking world, and this is the cause >>> of the confusion in this debate. >>> >>> In the Netherlands (and most of Europe), you would write one thousand >>> million watts as 1.000 megawatts. >>> >>> The decimal indicator in Europe is a comma. >>> For example, >>> 1,5 means one and a half >>> 1.000.000 means one million. >>> >>> Sil >>> (ex PA3HIL) >>> >>> > >_______________________________________________ >Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. >Not an AMSAT-NA member? Join now to support the amateur satellite program! >Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

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X-37B NORAD 36514
by JC-Aveni 23 Apr '10

23 Apr '10

US Space track X-37B OTV1 Id NORAD : 36514 ; UN Id : 2010 015A 73 Jean-Claude TK5GH

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QubeSat structure question
by William Leijenaar 23 Apr '10

23 Apr '10

Dear AMSATs, I have a question concerning CubeSats structures. I am looking for a way to have a total space of a 1U (10cm x 10cm x 10cm) CubeSat, of which 0.5U (10cm x 10cm x 5cm) is used for electronics and battery and the other 0.5U will be used for light weight deployable solar panels. Has this been done before ? Any ideas ? 73 de William Leijenaar PE1RAH

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Re: Arecibo on 432 MHz Moon Bounce (some calculations)
by Idle-Tyme 23 Apr '10

23 Apr '10

Wow that's all messed up? I'm 52 and this is the very first time i have ever seen anything like this and i have been dealing with science worldwide all my life. wow. Joe The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 4/22/2010 1:14 PM, Sil - ZL2CIA wrote: > Idle-Tyme wrote: >> On 4/21/2010 8:25 PM, i8cvs wrote: >>>> Comma or no comma, shouldn't matter >>>> 1000 mega watts or 1,000 Mega watts is still one thousand million >>>> watts! NOT one thousands watts. true? >>>> >>>> The Original Rolling Ball Clock >>>> Idle Tyme >>>> Idle-Tyme.com >>>> http://www.idle-tyme.com >>>> >>> Hi Idle-Tyme >>> >>> I don't agree with your statement: >>> >>> 1000 mega watt are one thousand million watt >>> 1,000 mega watt or 1.000 mega watt is only one million watt because >>> zero after the comma means nothing like 1,0000000000000 is still >>> one million watt or 1 MW >> NO! it's a comma, not a decimal point! it's one thousand, one >> thousand written 1000 or 1,000 is still one thousand they are exactly >> the same. > That's only true in the English speaking world, and this is the cause > of the confusion in this debate. > > In the Netherlands (and most of Europe), you would write one thousand > million watts as 1.000 megawatts. > > The decimal indicator in Europe is a comma. > For example, > 1,5 means one and a half > 1.000.000 means one million. > > Sil > (ex PA3HIL) > >

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Re: Arecibo on 432 MHz Moon Bounce (some calculations)
by Stephen Melachrinos 23 Apr '10

23 Apr '10

Ah, but this focuses on my question: Why is ERP referenced to a dipole? Why did someone assume that Arecibo's stated gain of 60 dB was dBd and not dBi? I've never seen the gain of a dish antenna used in satellite work quoted in dBd. All of the references for calculating gain are based on the isotropic reference. And all of the usages I have seen (in professional satellite work) use ERP and EiRP interchangeably, and the i in EiRP is used to explicitly state "referenced to isotropic." In fact, the amateur community is the only place where there is a fascination with the dipole reference. The dBd specs are useless for any real calculation purposes. Satcom engineering is much simpler if everyone quotes isotropic, and all commercial/government/military satellite link budgets are based on isotropic references. Steve Melachrinos W3HF (Professional) Satcom Engineer since 1979 > "ERP is about 243 MW" and > that comes from the conversion from dBi to dBd.

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Double da Donation!
by Clint BRADFORD 23 Apr '10

23 Apr '10

A reminder - You can make contributions online in the AMSAT Store - and the Dayton Amateur Radio Association (DARA) will match one-for-one any donations made to AMSAT between now and June 30, 2010 up to a maximum of $5,000. No, only your half is tax-deductible for you ... (grin) What a great way to show your support of amateur satellites! Please tell your ham friends and club members! Clint Bradford, K6LCS 909-241-7666

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Re: Arecibo on 432 MHz Moon Bounce (some calculations)
by Edward Cole 23 Apr '10

23 Apr '10

At 02:20 AM 4/22/2010, Stephen Melachrinos wrote: >Ah, but this focuses on my question: Why is ERP referenced to a >dipole? Why did someone assume that Arecibo's stated gain of 60 dB >was dBd and not dBi? I've never seen the gain of a dish antenna used >in satellite work quoted in dBd. All of the references for >calculating gain are based on the isotropic reference. And all of >the usages I have seen (in professional satellite work) use ERP and >EiRP interchangeably, and the i in EiRP is used to explicitly state >"referenced to isotropic." > >In fact, the amateur community is the only place where there is a >fascination with the dipole reference. > >The dBd specs are useless for any real calculation purposes. Satcom >engineering is much simpler if everyone quotes isotropic, and all >commercial/government/military satellite link budgets are based on >isotropic references. > >Steve Melachrinos >W3HF >(Professional) Satcom Engineer since 1979 > > > > "ERP is about 243 MW" and > > that comes from the conversion from dBi to dBd. >_______________________________________________ >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 In fact the first gain number published over a month ago was 58 dBi. Then I suppose a bunch of hams complained that they didn't understand isotropic gain so the Arecibo folks kindly converted the number to 60 dBd. (i.e. unity isotropic gain, dBi=0, is what a true omni-directional antenna produces in free space) Does anyone on this reflector know the formula for calculating gain of a parabolic dish (Yes, I know-I'm asking if you know)? Did you know that Arecibo dish is spherical and not parabolic? So we can only use the gain number they provide (BTW the UHF line-feed corrects for spherical aberration of the dish surface at Arecibo). Arecibo can track a small amount of angle "because" the dish is spherical. It is my understanding (might be wrong on this) the line-feed can adjust for the amount of surface irradiated (which will change the gain). The formula normally used in radio astronomy and mw engineering is in terms of dBi. Most (not all) eme hams use dBi vs dBd. I am really amazed at this thread on amsat-bb. I thought the satellite community was more globally oriented (International). The different convention in expressing decimal numbers (aka using comma or period) is pretty well known (I thought). US/UK use period and most EU use comma. Most antenna analysis sw express gain in dBi 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-600w, 432-100w, 1296-60w, 3400-fall 2010 DUBUS Magazine USA Rep dubususa(a)hotmail.com ======================================

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Re: Arecibo on 432 MHz Moon Bounce (some calculations)
by Stephen Melachrinos 23 Apr '10

23 Apr '10

Nigel - There are lots of lots of reasons ... 1. All link budgets use a path loss calculation that's also referenced to an isotropic radiator. If you use antenna gain referenced to a dipole, you'll have to add back the gain of the dipole (referenced to the isotropic radiator). 2. It's the standard way of calculating gain for virtually all professionals in the satellite, radar, deep space, avionics, microwave and many other fields. 3. Arguably, dBi is less ambiguous that dBd. By definition, an isotropic reference has the same gain (0 dB) in all directions. A dipole has a directional pattern, so dBd only makes sense if you also define the direction. I believe the assumption is gain broadside to the antenna, but that is still an assumption. 4. If you don't want to actually do link budgets, so you say reason #1 above is irrelevant, then your only real purpose is to compare two different antennas. And then the difference is always going to be dB, whether the two antennas are specified in dBi or dBd. So I still say to use the universal, unambiguous standard. 5. Finally, and most significantly, your statement "Why would I believe, or want to use, something I can neither have, use or measure? An isotropic antenna doesn't exist." is just as applicable to the ideal dipole that is your reference for dBd as it is to an isotropic radiator. You can't build a dipole that has zero resistance along its physical length, you can't build a dipole that has zero interaction with its feedline, and you certainly can't achieve any placement that perfectly represents the "dipole in free space" assumption upon which the dBd reference is based. In summary, there are plenty of reasons whay virtually anyone who builds or uses antennas for a living, does it in dBi Steve W3HF > Apr 22, 2010 09:15:04 AM, nigel(a)ngunn.net wrote: > I guess because it's impossible to build an isotropic radiator and therefore just as impossible to measure it. > Why would I believe, or want to use, something I can neither have, use or measure? > > An isotropic antenna doesn't exist. > > > In fact, the amateur community is the only place where there is a fascination with the dipole reference.

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Tickets from Space
by Clint Bradford 23 Apr '10

23 Apr '10

PIPS Technology has developed a license plate recognition system that uses two cameras on the ground and one mounted on a satellite to catch speeders. Blog entry at ... http://tinyurl.com/39c9hlp Clint, K6LCS

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Michigan Grid Activation; EN74
by Doug Papay 23 Apr '10

23 Apr '10

All, I will be active this Thursday-Saturday from the northern lower peninsula of Michigan--primarily grid square EN74. Despite the fact that Traverse City is located within EN74, this is a rarely activated grid on satellite. I plan to operate as many passes as my schedule & time permits to give the opportunity for those who don't have this grid to put it in their logbook. Since I will only have the capability to operate FM voice satellite, my operations will be limited to AO-27 and SO-50, as AO-51 is in mode V/S until Sunday evening & HO-68 is not scheduled for FM operation this weekend. My tentative schedule is as follows: Thursday 22-Apr-2010 AO-27 18:48z - 19:03z (from wherever I am at the time, most likely EN63; possibly EN64) Friday 23-Apr-2010 SO-50 04:04z - 04:18z (upon request) SO-50 12:35z - 12:48z AO-27 18:21z - 18:34z* AO-27 20:00z - 20:13z* Saturday 24-Apr-2010 SO-50 04:34z - 04:47z (upon request) SO-50 11:24z - 11:37z AO-27 17:53z - 18:05z* AO-27 19:31z - 19:45z (maybe; EN63) *If there is significant interest, I will consider activating EN64 on Friday and/or Saturday afternoon. Send me an email off-list if you need EN64, if I have significant interest I will make an effort to activate this grid as well during my trip. I will QSL upon request, just send me an email and I will send you a card. No SASE needed, but always appreciated. 73, Doug KD8CAO

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Re: Arecibo on 432 MHz Moon Bounce (some calculations)
by i8cvs 23 Apr '10

23 Apr '10

----- Original Message ----- From: "Sil - ZL2CIA" <zl2cia(a)amsat.org> To: "Idle-Tyme" <nss(a)mwt.net> Cc: "i8cvs" <domenico.i8cvs(a)tin.it>; "AMSAT-BB" <amsat-bb(a)amsat.org> Sent: Thursday, April 22, 2010 8:14 PM Subject: Re: [amsat-bb] Re: Arecibo on 432 MHz Moon Bounce (some calculations) > In the Netherlands (and most of Europe), you would write one thousand > million watts as 1.000 megawatts. > > The decimal indicator in Europe is a comma. > For example, > 1,5 means one and a half > 1.000.000 means one million. > > Sil > (ex PA3HIL) Hi Sil, ZL2CIA In Italy you would write one thousand million watt as 1000 megawatt or alternatively 1000 MW In addition the units in Italy are written without plural and to write megawatts is wrong in Italy but the plural is used in England and USA In any calculator 1.5 means one and half because the calculators are not using comma. In any calculator 1000000. means one million I thing that the best for everybody should be to write numbars as any calculator shows. 73" de i8CVS Domenico

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Deployable Solar Panels on a 1U CubeSat
by Trevor . 22 Apr '10

22 Apr '10

Interesting presentation by Abhishek Bajpayee on deployable Solar Panels at http://www.ustream.tv/channel/CubeSatWorkshop/v3 A number of other presentations from the first two days are also available at this URL 73 Trevor M5AKA Daily Amateur Radio Email/RSS News: http://www.southgatearc.org/ Email Your News To: editor at southgatearc.org Or Upload Using Form At: http://www.southgatearc.org/news/your_news_1.htm ----

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: For sale, Yaesu VX-3R HT, ARR RF switched pre amp ( pre-amp sold)
by Michael Tondee 22 Apr '10

22 Apr '10

The pre-amp is sold. The VX-3R is still available. Thanks to everyone for their interest, Michael -------- Original Message -------- Subject: For sale, Yaesu VX-3R HT, ARR RF switched pre amp Date: Tue, 20 Apr 2010 17:19:26 -0400 From: Michael Tondee <mat_62(a)netcommander.com> To: amsat-bb(a)amsat.org I have for sale a Yaesu VX-3R dual band HT. While it is not full duplex, it works well as the RX side of a mode J handheld station. I've had it less than six months if even that long. It has never even been outside the house and is in like new condition. Of course box, manual, charger and stock rubber duck are all included. I'll also throw in a 3ft. long adapter cable that goes from the SMA jack on the radio to an SO-239 where an external antenna can be used. Price is $110.00 shipped priority mail in the lower 48. The pre amp is an Advanced Receiver Research SP432VDG with N connectors. The RF switching circuit is rated at 25 watts, I actually only ever used it on a receive only setup with the VX-3R. The pre amp has been mast mounted in a weatherproof enclosure. ARR says these units will withstand heat and cold extremes with no problem, they just have to be mounted in a waterproof enclosure if put outside. As with the HT the unit has seen very little use and is like new. Price is $85.00 shipped priority mail in the lower48. I will accept Paypal or a United States Postal Service money order as payment. Sorry, no international shipping. If you are interested, please contact me off list. Thanks for the bandwidth everyone, Michael, W4HIJ

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Congrats to K7CWQ
by Clint Bradford 22 Apr '10

22 Apr '10

Loren, K7CWQ, just received his VUCC award - using a FT-60R and Arrow Sat Antenna as his station. CONGRATULATIONS, Loren! Clint, K6LCS http://www.work-sat.com

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Re: Arecibo on 432 MHz Moon Bounce (some calculations)
by Idle-Tyme 22 Apr '10

22 Apr '10

do you calculators have commas? The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 4/22/2010 1:14 PM, Sil - ZL2CIA wrote: > Idle-Tyme wrote: >> On 4/21/2010 8:25 PM, i8cvs wrote: >>>> Comma or no comma, shouldn't matter >>>> 1000 mega watts or 1,000 Mega watts is still one thousand million >>>> watts! NOT one thousands watts. true? >>>> >>>> The Original Rolling Ball Clock >>>> Idle Tyme >>>> Idle-Tyme.com >>>> http://www.idle-tyme.com >>>> >>> Hi Idle-Tyme >>> >>> I don't agree with your statement: >>> >>> 1000 mega watt are one thousand million watt >>> 1,000 mega watt or 1.000 mega watt is only one million watt because >>> zero after the comma means nothing like 1,0000000000000 is still >>> one million watt or 1 MW >> NO! it's a comma, not a decimal point! it's one thousand, one >> thousand written 1000 or 1,000 is still one thousand they are exactly >> the same. > That's only true in the English speaking world, and this is the cause > of the confusion in this debate. > > In the Netherlands (and most of Europe), you would write one thousand > million watts as 1.000 megawatts. > > The decimal indicator in Europe is a comma. > For example, > 1,5 means one and a half > 1.000.000 means one million. > > Sil > (ex PA3HIL) > >

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OZ7SAT? Off the air?
by Mark L. Hammond 22 Apr '10

22 Apr '10

Does anybody (Ib ;) ) know if OZ7SAT is off the air? I haven't seen any telemetry updates in over a week. http://www.amsat.dk/oz7sat/tlm/ Thanks, -- Mark L. Hammond [N8MH]

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