Moon-net February 2022

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81 participants
67 discussions

[CFR Title 47 Chapter I Subchapter A US270 In the band 420-450 MHz

by Navionics

Hello everyone, As soon as I became QRV in 432 EME, I was made aware by Steve K5DOG for the power restriction on 70cm . Under the current restriction I will not be able to operate on 432 MHz with power more than 50W. Steve was kind enough to share some information from his experience on the subject matter. Jay, N1WY also shared his experience on obtaining a waver from the FCC for operating with higher power on 432MHz for Arizona. Being in Florida same restriction applies therefor I need to send and application for a waver. Can some one point me to the right direction to get this process going. I browsed the FCC web site but came empty handed. Thank you, 73, Nick NN3Y

1 year, 3 months

ARI EME Contest Spring Section

by Enrico Baldacci

Dear EME friends, 09-10 April there will be the Italian ARI EME Spring Contest Rules are on: http://www.eme2008.org/ari-eme/contest2022.html Rules are unchanged except the addition of 50 MHz Band as requested by some OM Vy 73' & GL de Enrico i5wbe

1 year, 3 months

Storm Eunice: War stories

by Conrad PA5Y

In the early hours of Saturday morning, we had peak wind speeds of 109kph in my region. High wind speeds with violent gusts were sustained for long periods and even though all my antennas were at ground level and tied down one of the booms of my 2m EME array was bent. One of the disadvantages of a trolley or hazer system for lowering antennas is that you cannot point the antennas into the wind. During these circumstances lower the trolley as low as possible and tie the bottom 2 antennas with rope. There was a very strong cross wind made worse by the gap between a barn and my shack. As a result, the 40mm x 2mm aluminium boom material bent. I was amazed to see this. However, if I did not tie the array down, I am sure that the PST61 rotator would have been damaged. I was watching the very heavy-duty H frame dance around and I was surprised that the rotator and bearing were undamaged. I will have to think carefully about how to remedy this for future storms. The antennas on tilt over towers are all OK. This includes a 10m long 6m yagi on one versatower, then 2 x 12 ele on 2m and 70 ele on 23. Finally, 4 x 23 ele on 70cms on another small tilt over mast. Another storm with windspeeds of over 90kph are forecast for around local midnight. Here is a photo of the bent boom: https://prnt.sc/z311bKjwjRP2 A photo of the H frame can be seen here: https://cdn-bio.qrz.com/y/pa5y/PA5Y_PA144_XPOL_24_7_11.JPG<https://cdn-bio.qrz.com/y/pa5y/PA5Y_PA144_XPOL_24_7_11.JPG?p=707da9c3c97ed5…> The uprights are 80mm in the centre then 60mm x 40mm fiberglass, the cross members are 50mm x 50mm x 5mm It is very strong. I think that I will place stakes in the ground at the front, middle and rear of the array. I don't have space for another tilt over mast. I also lost 6 roof tiles which have already been replaced. 73 Conrad PA5Y

1 year, 3 months

SM4IVE

by Johann Bruinier

Lasse, what a pity! I remember well your first 14m dish which you lost in a storm. You were courageous enough to build another beautiful "monster". And now this. Hopefully, you'll find a way to reappear, the CW community will miss you very much. Stay safe & hejdo! Jan DL9KR.

1 year, 3 months

ARI SPRING CONTEST

by Juan Antonio

Hi all, Anybody knows the rules for this year?, I cannot find them on the net. 73, Juan Antonio EA4CYQ IM78cx www.ea4cax.es https://www.qrz.com/db/EA4CYQ -- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus

1 year, 3 months

WTB : IC202

by DF2ZC

Hello All, I'm not very optimistic but I thought I'd give it a try though.anyone here wanting to sell an Icom IC202? Not as parts donor but fully functionable. Please contact me at BerndDF2ZC(a)gmail.com <mailto:BerndDF2ZC@gmail.com> if you have one you want to get rid of. vy 73 Bernd DF2ZC <http://www.df2zc.de> www.df2zc.de ____________________________________________ 144 MHz EME NewsLetter: <http://www.df2zc.de/newsletter> www.df2zc.de/newsletter twitter.com/df2zc 144 MHz DXCC #21 144 MHz WAC Kenwood TS 2000 2 x GU74b by LZ2US BEKO HLV-2000 4 x 2M18XXX 21 dBd full elevation

1 year, 3 months

Re: [Moon-Net] Anyone know of a source for PC-7TB 7-pin connectors

by Jim Allyn

On 2/18/22 14:08, moon-net-request(a)mailman.pe1itr.com wrote: > Anyone know of a source for PC-7TB 7-pin connectors As always, the attachment (the photo) was removed. You can see a picture of the connector here: https://connector.en.made-in-china.com/product/WIQnkKJjVmxq/China-Small-Cir… In theory at least, you can buy a sample of 1 for $3.00, but as Bob said, it's hard to be sure you will get what you thought you were ordering. Jim, N7JA

1 year, 3 months

Anyone know of a source for PC-7TB 7-pin connectors (Russian/Chinese)

by Bob Atkins

I'm looking for a PC-7TB 7-pin connector. They are used on some eastern European equipment (SSPAs etc) but are hard to find. I think they are originally a Russian design, though like everything else they are now made in China. [cid:14485a82-57ea-471c-8548-3f1841510a43] You can find then on high volume Chinese manufacturer websites like Made-in-China or Alibaba (but not Alliexpress) and it's kind of difficult dealing with Chinese industrial scale vendors for singe items. I don't need 100 (or 1000) of them. They are made in cable and panel mounts and with male or female contacts so there's always some confusion about what might arrive... If anyone has one (as pictured above, cable mount, female pins) that they they would sell, or knows of an "easy to deal with" vendor (preferably in the US, but that's a long shot) I'd appreciate it if they could pass along the details. Thanks Bob, KA1GT

1 year, 3 months

QRV this weekend

by cx2sc.base＠gmail.com

Hi all, This next weekend there is a good weather forecast, I will be QRV from 02:00 Saturday and Sunday on 3cm and 6cm. 73! Ric CX2SC

1 year, 3 months

Re: [Moon-Net] Moon-net Digest, Vol 561, Issue 6

by Peter Hutchison

Hi, Likewise although my reason is more pragmatic. I just don't fancy walking through ankle deep mud for mile on end after the rain that will fall in the next couple of days! Peter ------ Original Message ------ From: moon-net-request(a)mailman.pe1itr.com To: moon-net(a)mailman.pe1itr.com Sent: Friday, 18 Feb, 22 At 08:54 Subject: Moon-net Digest, Vol 561, Issue 6 Send Moon-net mailing list submissions to moon-net(a)mailman.pe1itr.com To subscribe or unsubscribe via the World Wide Web, visit http://mailman.pe1itr.com/mailman/listinfo/moon-net <http://mailman.pe1itr.com/mailman/listinfo/moon-net> or, via email, send a message with subject or body 'help' to moon-net-request(a)mailman.pe1itr.com You can reach the person managing the list at moon-net-owner(a)mailman.pe1itr.com When replying, please edit your Subject line so it is more specific than "Re: Contents of Moon-net digest..." Today's Topics: 1. Re: Parabola design (mikflathead(a)aol.com) 2. 144 EME WANTED: MD, ND, SC (Jay Baack) 3. Re: 144 EME WANTED: MD, ND, SC (Greg McIntire) 4. Re: Parabola design (Peter Blair) 5. For sale a 2kW PEP Amplifier for 144Mhz (Jac de Bruijn) 6. QRV next 2 evenings 3cm EME (Richard Howlett) ---------------------------------------------------------------------- Message: 1 Date: Thu, 17 Feb 2022 21:38:29 +0000 (UTC) From: mikflathead(a)aol.com To: "moon-net(a)mailman.pe1itr.com" <moon-net(a)mailman.pe1itr.com>, "ka1gt(a)hotmail.com" <ka1gt(a)hotmail.com>, "eltingradio001(a)gmail.com" <eltingradio001(a)gmail.com> Subject: Re: [Moon-Net] Parabola design Message-ID: <1188987503.1641823.1645133909345(a)mail.yahoo.com> Content-Type: text/plain; charset="utf-8" Peter, wouldn't the skin be a constant for the complete surface? Mike -----Original Message----- From: Peter Blair via Moon-net <moon-net(a)mailman.pe1itr.com> To: Bob Atkins <ka1gt(a)hotmail.com>; moon-net(a)mailman.pe1itr.com; Dragan Pavicevic <eltingradio001(a)gmail.com> Sent: Thu, Feb 17, 2022 4:24 pm Subject: Re: [Moon-Net] Parabola design #yiv3145899297 P {margin-top:0;margin-bottom:0;}Dragan,Two points to remember when building your dish....1) If you intend to use your dish at microwave frequencies above 1.3GHz then dont forget to allow for the thickness of the covering material when building the ribs.2) To be sure of surviving high winds, and maintaining the parabolic shape in all positions, pay a lot of attention to building a strong and rigid hub for your dish.GL 73Peter G3LTF ??From: Bob Atkins via Moon-net Sent: Wednesday, February 16, 2022 10:20 PMTo: moon-net(a)mailman.pe1itr.com ; Dragan Pavicevic Subject: Re: [Moon-Net] Parabola design?I've used that program and it seems to work fine. The math for a prime focus dish is simple and hard to get wrong!?h= (D^2)/(16F)? where h is the height,? D is the diameter and F is the focal length (all in the same units)?If you want high resolution data, just enter dimensions in cm or mm rather than in m of course.?73Bob, KA1GTFrom: Moon-net <moon-net-bounces@mailman.! pe1itr.com> on behalf of Dragan Pavicevic via Moon-net <moon-net(a)mailman.pe1itr.com> Sent: Wednesday, February 16, 2022 1:52 PM To: moon-net(a)mailman.pe1itr.com <moon-net(a)mailman.pe1itr.com> Subject: [Moon-Net] Parabola design ?Hi guys,I?m finally planning to allocate some time and start with a Parabola project.I found a but older Parabola calculator version 2.0. I wanted to check if it?s accurate enough. Does anybody have experience with this software or can you recommend something else? ThanksDan, YT1AR | | Virus-free. www.avast.com | _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html <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 <http://www.nlsa.com/nets/moon-net-help.html>

1 year, 3 months

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Moon-net February 2022