Moon-net November 2015

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162 participants
266 discussions

2015 EME Contest Activity JT65

by Les Listwa

Based on reviewing the Map-65rx files that KB8RQ and HB9Q kindly supplied me, below is the breakdown of unique station calls received and decoded at their stations by Map-65 during both legs of the contest. This is not the number of stations they worked, but what they heard. For 144 Mhz it is the combination of both Gary and Dan's file ( with duplications removed) and for 1296 and 432 it was only Dan's large ears. I removed false decodes by excluding extreme low or high DTs. 144 - 506 unique calls 432 - 116 unique calls 1296 - 141 unique calls 73s Les W2LPL W2DBL

7 years, 6 months

10 GHz & up logger at HB9Q

by Daniel Gautschi, HB9Q

Hi all I'm happy to announce that we have added the 10 GHz & up logger to our EME loggers at www.hb9q.ch. Starting tonight the "2300-5670MHz" and the "10000 MHz & up" loggers are ready to use. Over the last years more and more people are using our EM loggers. The growing activity on the microwave bands let the "2300 MHz & up" logger become a very busy place. The need for a "10000 MHz &up" logger became obvious. Feedback and good ideas/suggestions are very welcome. I wish all lots of fun and success on EME. Vy 73, Dan HB9Q

7 years, 6 months

Contest log submission?

by Curt Nixon

GM List: I managed to get past a hung-up masthead relay set and a couple of problems in the amp which caused a loss of screen voltage. Got on for all of Sunday and made a few contacts. Is there a simple way to get the WSJT log files into Cabrillo for submission? I can easily get it into my main logger32 station log and then convert out to Cabrillo using a converter--but is there an easier way? Also, in the form, mit asks for full exchange Rx and Tx. What do they expect there? It is a pretty small box! :) Perhaps with only a handful contacts I should just do a handwritten submission and summary? Thanks Curt KU8L

7 years, 6 months

BLL6H1214-500 on 23cm

by Fred

Has anyone tried this FET on 1296? What sort of results have you seen? Thanks and 73 Fred N1DPM

7 years, 6 months

Fw: Fw: Bringing EME Station Online - Horn and standoff brackets

by cameron joseph

Horn and standoff brackets. The stock standoffs will not hold, not chancing it anyway. This is what I am copying and will have to see what I can do about the actual bracket to hold the horn. https://picasaweb.google.com/108653307285290041037/F6ETIProjetEME2008#61980… Here is the horn that is going on it. http://kl6m.com/23cm/23CM-SEPTUM-FEED.pdf Aluminum stock ordered. Hope to find the brass parts stock from somewhere. Thoughts anyone? On the right track? --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 6 months

Fw: Old Eimac Moonbounce notes [KA9Q]

by cameron joseph

From: cameron joseph Sent: Monday, November 30, 2015 1:32 PM To: Stephen Hanselman Subject: Re: [Moon-Net] Old Eimac Moonbounce notes [KA9Q] Dang, that’s that’s not good. The bracket and not the horn, horn already built? Here is the one I am building. Aluminum stock ordered, except the brass. Hope I can find that ready made. This is the one I am copying. http://kl6m.com/23cm/23CM-SEPTUM-FEED.pdf Think I have found another 10 foot dish like I have now. If I had the room would co-phase them or even one for xmit and one for recv.... From: Stephen Hanselman Sent: Monday, November 30, 2015 1:24 PM To: cameron joseph Subject: Re: [Moon-Net] Old Eimac Moonbounce notes [KA9Q] Cameron, I was in the same quandary you were in I thought about using 4 or 8 Yagi's but the collective wisdom here on the reflector was that a dish was better. The reasoning was that most current folks used the dish which implied circular polarization and the Yagi's implied horizontal/vertical and I would be throwing away antenna "gain". Now two years into the project I'm still waiting to get my septum feed bracket manufactured Good luck 73's Stephen Hanselman, KC4SW Datagate Systems, LLC 3107 North Deer Run Road #24 Carson City, Nevada, 89701 (775) 882-5117 office (775) 720-6020 mobile s.hanselman(a)datagatesystems.com www.datagatesystems.com a Service Disabled, Veteran Owned Small Business DISCLAIMER: This e-mail and any attachments are intended only for use by the addressee(s) named herein and may contain legally privileged and/or proprietary information. If you are not the intended recipient, any dissemination, distribution or copying of this e-mail and any attachments is strictly prohibited. If you have received this e-mail in error, please immediately notify me and permanently delete the original and all copies and printouts of this e-mail and any attachments. Sent from my iPad On Nov 29, 2015, at 21:08, cameron joseph <cameron.joseph(a)suddenlink.net> wrote: Thank you. I wish I have of read these before I started with what I am going with. Think I would have not gone with a dish at 23cm. Still want to do it on 6m, but got to have more room for antenna array. 73 de Baja (just waiting for FCC to post call sign) From: Stephen Hanselman Sent: Sunday, November 29, 2015 10:44 PM To: cameron joseph Cc: EME Moon Subject: Re: [Moon-Net] Old Eimac Moonbounce notes [KA9Q] I'll start working on scanning them 73's Stephen Hanselman, KC4SW Datagate Systems, LLC 3107 North Deer Run Road #24 Carson City, Nevada, 89701 (775) 882-5117 office (775) 720-6020 mobile s.hanselman(a)datagatesystems.com www.datagatesystems.com a Service Disabled, Veteran Owned Small Business DISCLAIMER: This e-mail and any attachments are intended only for use by the addressee(s) named herein and may contain legally privileged and/or proprietary information. If you are not the intended recipient, any dissemination, distribution or copying of this e-mail and any attachments is strictly prohibited. If you have received this e-mail in error, please immediately notify me and permanently delete the original and all copies and printouts of this e-mail and any attachments. Sent from my iPad On Nov 29, 2015, at 17:04, cameron joseph <cameron.joseph(a)suddenlink.net> wrote: There is an email exchange on Moon-Net on Wed Sep 19 23:44:12 CEST 2012 Between Stephen L Hanselman and Simon ZL4PLM Excerpt: “Simon,All of it was copyright by Eimac. I can check with them, I think, and find out/ get permission to scan and post. It will be quite a job though the full set takes up a 1.5 inch binder.I am not sure but the set I have might have been Bob's (PO's) reference set. It came from a buddy at Eimac(Stan W6VW). I also have a few of the old Eimac newsletters courtesy of another Eimac Old Timer > > > These may be of historical value only but I have a set of the Bob > > > Sutherland EME Notes available.> > > > > > The notes are in a binder and include: AS-49 "Almost Everything You > > > Wanted To Know About Moonbounce"; AS-49-1 "Locating the Moon"; AS-49-2 > > > "Moonbounce Operating Aids"; AS-49-3 "More on the Moonbounce Universal > > > Window for 144MHz"; AS-49-4 "EME QSO Procedure for 144MHz"; AS-49-11 > > > "Ideas for EME Antenna Elevation Drives"; AS-49-17 "Additional Moon > > > Tracking Computer and Calculator Programs"; AS-49-24 "Two More Moon > > > Tracking Computer Programs"; AS-49-25 "Radio Sky Maps".> > > > > > I found some interesting calls in the Notes, many of whom are SK but > > > some of whom are still around, like W6FZJ and WB7CCI. I'll let you > > > figure out who they are.> > > > > > The Notes, published starting in 1963, are in very good condition. > > > Asking $10.00 postpaid in the lower 48. Shipping elsewhere TBD.” From the small amount I have read on the ones just posted, I would sure like to have a copy of the missing ones. 73 de Joseph From: Ron Barlow Sent: Sunday, November 29, 2015 4:50 PM To: moon-net(a)mailman.pe1itr.com Subject: Re: [Moon-Net] Old Eimac Moonbounce notes [KA9Q] Hi David, Many thanks for posting the Eimac EME notes! I have misplaced my original copies, so they are of great nostalgic value. I found the originals to be extremely useful, in my efforts to achieve EME capability, on a very low $ budget, back in 1977/78. I was a VHF neophyte, using all homebrewed stuff (complete with multiple bug infestations!). The ideas for my antenna array, LNA, moon tracking scheme (without access to a computer), and more, all came from these informative notes. It seemed fitting that the first EME sigs that I copied, using my lash-up, were from W6PO's station. Vy 73 de Ron n4gjv ---------------------------------------------------------------------------- From: moon-net-bounces(a)mailman.pe1itr.com <moon-net-bounces(a)mailman.pe1itr.com> on behalf of David Anderson <david(a)gm4jjj.co.uk> Sent: Monday, October 19, 2015 3:55 AM To: moon-net Subject: [Moon-Net] Old Eimac Moonbounce notes [KA9Q] I thought some of you might like to see this note from this week's AMSAT news: + Eimac Moonbounce Notes collection Way back in 1980 when I first got interested in amateur satellites and AMSAT, I wrote off to Eimac Corporation for their "Moonbounce Notes" collection. While on a household paper eradication campaign I came across them and scanned them. I thought others might enjoy a look back at some bleeding-edge ham activities from the mid-late 1970s. It's particularly amusing to see how much effort was spent just tracking the moon with the technology then available. http://www.ka9q.net/moonbounce-notes This is a raw collection of pdf files, but the file names are pretty descriptive. Collect the entire set! If anybody has any notes missing from my collection, please let me know. [ANS thanks Phil KA9Q for the above information] I somehow got hold of a number of those Eimac notes in the late 70's, and it was the computer listings for moon position calculation by Lance WA1JXN (W7GJ) that got me started in computing myself, typing it into some automatic test equipment at work and getting output on line print paper, years before I had a Moonbounce station myself. It became a dream and an obsession to make a Moonbounce contact after that. 73 David GM4JJJ ---------------------------------------------------------------------------- _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html ---------------------------------------------------------------------------- This email has been checked for viruses by Avast antivirus software. www.avast.com _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html ------------------------------------------------------------------------------ _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html ------------------------------------------------------------------------------ This email has been checked for viruses by Avast antivirus software. www.avast.com _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

7 years, 6 months

Spids

by Bjorn SM7SJR

I never ever ever recalibrate any of my Alfaspid rotators/controllers. These rotators is by far the absolute best ones I have used. /B

7 years, 6 months

Elevation angle sensor - VA3TO / N8CQ

by gabercr＠nc.rr.com

VA3TO Hugh and I are in the process of spinning a board to allow MAB-25/28 encoders to be interchanged with US Digital A2/A2T Encoders on the same bus. The prototype has been built and verified. I would also like to verify interoperability with popular controllers (W2DRZ/K2TXB, OE9JFL, F1EHN). Currently, I have the board running with my Raspberry PI controller which controls my 9.2m dish. This board also has the option of using a popular 16-bit digital level IC for elevation readout. No more need to tear apart a $50 level to access the $5 IC inside the device. This will also allow a computer access to the reading. This board also supports an I2C LCD for displaying the AZ/EL readings and can be placed anywhere on the SEI bus - inside the shack or out at the antenna (or both). Power is derived from the SEI bus so the board is basically plug-n-play. We should have this board available soon. I will write-up the specs of this board and continue to update my dropbox for interested parties. Gary, N8CQ

7 years, 6 months

Maya 44 XTe

by Leif Asbrink

Hi All, The Maya 44 XTe has a time shift between the two stereo channels. When used with a two channel direct conversion receiver like WSE or IQ+ that causes two problems: 1) A small time shift means a frequency dependent phase shift. If one has a crossyagi in the H/V configuration, a signal that is 45 degrees will show up as 45 degrees near the passband center, but further out it may appear as elliptic, circular and finally -45 degrees. that means that software that relies on the use of linear polarization will loose 3 dB in the worst xase. I think this is the case for MAP65. 2) The smart blanker in Linrad-04.07 and earlier does not work. Linrad-04.08 compensates for the time shift and this solves the problem for both the blanker and MAP65. There is a complication however. The drive routine can start in two different ways with two different time shifts. In case it starts in the way in which it was calibrated, everything is fine - but if it starts the other way, there is a significant performance loss. I have made a video showing Maya 44 under Windows 10. The only driver specified for Windows 10 is 1.2.0 but it is inconvenient because the probability for the two different time shifts is about 50% for eac one. As it turns out, the 1.0.0 driver can be installed under Windows 10. At least the 32 bit version under 32 bit Windows 10. With this old driver the Maya 44 XTe starts with one time shift about 90% of the time and with the other about 10% of the time. That is of course more favourable. By having access to a signal that is present in both H and V and by checking its polarization when it is far from the center frequency one can decide if the Maya 44 started correctly. Checking it when placed near the center will give the true polarization. This video shows the problem in detail: https://www.youtube.com/watch?v=_Z82M6suA6o I am waiting for feedback from users who have stayed at linrad-04.05 because linrad-04.07 does not work with MTrack Quad USB or DMX6Fire USB on their systems. I think the problem is solved, but I want to know before uploading 04.08. Alex wrote that 23 IQ+ users have reported the problem. If you are one of them, please respond off list. 73 Leif

7 years, 6 months

Re: [Moon-Net] AlfaSpid rotator problem

by Pete Rimmel N8PR

I am puzzled... I have an RAK which turns a very heavy DB-36 SteppIR and an AZ/EL rotator which moves 4x20 XP 2 Meter Yagis on a 12 foot H frame.. They work very well, and do not go out of calibration. I just used the RAK in the CQWW CW contest, and it is still pointing the proper direction after MANY changes in position during the 48 hour contest. Once in awhile the AZ/EL can be 1 degree off, which can be expected, since they use a “make-break” circuit to count the degrees of rotation. I can get the readout to index (sometimes) by turning it on or off. Other than that, they both work very well. Perhaps your antennas are slipping in the mounts and not properly secured? Just another perspective on the Alpha Spid Rotators. 73, PeteR N8PR Date: Mon, 30 Nov 2015 09:33:20 +0100 From: "dominique.dehays" <dominique.dehays(a)enac.fr> Subject: Re: [Moon-Net] AlfaSpid rotator problem. To: Trevor Benton <tbenton(a)bigpond.net.au>, moon-net(a)mailman.pe1itr.com Message-ID: <565C09D0.6000107(a)enac.fr> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed Hi Trevor , I own 3 spids and local friends have some too . Among a total of 10 RAK rotators we own , ALL of them are unable to keep a correct calibration. It is impossible to get the manufacturer admit his contro lbox is not working properly. They proposed a modified version of processor with rewritten software , but no joy , the problem is still there. Finaly we all build a homebrew control box , and then , it is OK. We have in fact been robbed by the manufacturer. Mechanic is good , electronic is poor . It would be nice to be able to buy the rotator alone with no control box. There is an upgrade for an HR ( high resolution) captor , but ..look at the price! 73 Dom/F6DRO

7 years, 6 months

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Moon-net November 2015