Moon-net March 2017

moon-net@mailman.pe1itr.com

132 participants
222 discussions

by Pete M

I have been playing with a new Triquint ULNA device (TQP3M9036). It Shows a lot of promise. It is like a MAR or MSA device in that it is 50ohm in and out. and has a claimed NF about .4db nf ( their numbers). I have built several pramps to test them and have gotten even better than they claim and they cover 50-1296 with ease and NF is .4ish or below. The S11 and S22 are both great and the OIP3 is +35db also ...very nice device. It has great promise as a good terrestrial LNA. Preamps are foolproof to build and would cost under $50 if all the best quality parts are used. Just for information only ... Pete WA2ODO -- ++++++CONFIDENTIALITY NOTICE++++++ The information in this email may be confidential and/or privileged. This email is intended to be reviewed by only the individual or organization named above. If you are not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any review, dissemination or copying of this email and its attachments, if any, or the information contained herein is prohibited. If you have received this email in error, please immediately notify the sender by return email and delete this email from your system.

6 months

Ready on 6cm.

by Bruce Halasz

Hi all, I’m ready on 6cm with the same dish I’m using on 3cm. Despite the strong local 5 GHz WiFi noise, had a nice 579/569 first QSO with this setup today with HB9Q, thank you Dan ! Setup is a 3.7m dish and 60W at CP feeder. I can be QRV on 6cm or 3cm most of the days, skeds and tests are very welcome, as usual. Vy 73 Bruce PY2BS qrv 70cm, 33cm, 23cm, 13cm, 9cm, 6cm and 3cm.

1 year, 7 months

50MHz transmitting Band-Pass filters

by Dual

2 years, 7 months

Beko HLV-1200 SOLD.

by pa3fpq

Gents, The amplifier is sold. Johan PA3FPQ

3 years, 5 months

Fitting MAB25 type encoders to a Spid RAS

by g4bao

Befefore I reinvent the wheel this spring and before I strip down my RAS, has anyone out there fitted absolute rotary encoders of the MAB 25 style to a SPID RAS and more importantly documented it? Also if anyone has stripped down and rebuilt a RAS I'd be interested in any tips, pitfalls and gotchas. I used to regularly strip down and rebuild a a Suzuki T500 charger engine in my youth,so I'm not scared to have a go but I had a Haynes manual! You could save me a lot of time and headscratching. Also an exploded diagram of the rotator would be nice Answers on a postcard to....... 73 John G4BAO

5 years, 12 months

EME 432 this weekend at DL6SH

by Slawek DL6SH

Hi all, I also missed a lot of sleeping as most of you ;-) Made 19 analog qso's during those long two nights. Got a ssb contact with PI9CAM when they tx with 50 watts or less. Nice! Spent a lot of time looking for more stations, but maybe low activity during my window. Additionally made 9 jt qso's, 6 of them new contacts. Some of them could be worked in cw as well. Had some probs with defective contacts of my control cables and lost a preamp. But no matter it was really funny. Will not party in the contest because of the ARRL rules. Hope to work you soon! 73, Slawek dl6sh www.dl6sh.com

6 years

W5LUA/0 EM48ss Microwave Update operation summary

by Al Ward

Hello Microwavers We had a successful demonstration of 3 cm EME at the Microwave Update Conference in St. Louis, MO on Oct 13, 14 and 15. I was located in EM48ss in the hotel parking lot. The antenna was a 1 m offset fed dish made by Winegard. Power was provided by a GaN device delivering 30 watts to the feed. I used a KX-3 IF and DEMI transverter locked to a 10 MHz Isotemp TCXO. I was not able to take advantage of measuring moon noise as a pointing assistance as there was a local beacon up the band that was getting into my GR-1216 noise meter. I plan to look into better ways of measuring moon noise over narrower bandwidths ...However I drug out the compass and was able to get reasonably close on azimuth and when we started hearing stations we could easily optimize the dish and establish a new azimuth reference. The theoretical 3 dB beamwidth of the 1 m dish at 10 GHz is 2.2 degrees. My dish mount is calibrated in 1 degree increments making it easy to update once we find the moon. Elevation readout was provided by a Sears digital level placed on the offset dish feed support. Based on prior sun noise measurements, I determined that the arm angle was 3 degrees below the actual pointing angle of the dish. I requested that other stations who wished to call me do the mutual Doppler correction on both receive and transmit so that I could receive and transmit on 10368.050 MHz. On the first moon rise, we did work on JT-4F G3WDG at 2257Z, OZ1LPR at 2305Z and OK1KIR at 0042Z, We attempted contact with K5GW on cw but it was confirmed later that Gerald had some tracking program issues and we gave up for the night. The attendees were able to copy K5GW calling us on cw so that provided a good demo to the guys. The tones from the other 3 stations were also heard in the loudspeaker. so despite the fact that we had to manually (with some luck) keep it on the moon without the help of moon noise, we did have success. On the second night, we had a repeat QSO with G3WDG at 2342Z (thanks Charlie as you confirmed we were on the moon) and WA3LBI at 0023Z. I then ran a sked with K5GW with me doing the mutual Doppler correction on both receive and transmit and we established contact by 0130Z. We then went back to CQing on .050 hoping for further contacts. We were surprised and pleased to make a contact with G4CBW at 0135Z who was only running a 1.5m dish. We finished the evening with a nice contact with OK1CA. Thank you to the stations we worked and my friends who helped me with setup and teardown.73 de W5LUA 10/17/2016

6 years

13cm Dubus CW / SSB contest

by Peter Blair

I plan to be active, 250W and 6m dish, Transmit 2320MHz only. Receive 2400,( JA window) 2320, (Always),2304 (NA window) 2301 (VK window) Unless advised otherwise I listen cross band on the corresponding frequency, ie. I call 2320.095 and listen on 2304.095. As I plan to enter the contest I will not be on the logger. GL 73 Peter G3LTF

6 years

Re: [Moon-Net] My talk on 6cm eme at the RSGB convention

by JOHN REGNAULT

As the VHF manager who organised the VHF theme at the RSGB convention I would like to publically thank Peter for another really inspiring talk. Some 45 years ago as a young amateur I went to a talk by Peter on EME at a RSGB convention in West London. As a result of Peter's talk I was hooked on EME for life. On Saturday, after Peter's talk, I was aproached by a young amateur in his early 20s who had never seen anything about EME before. As a result of Peter's talk, which focused on 5.7GHz EME, this young man told me that was what he really wanted to do in amateur radio. This is a story that many others in the UK will also recognise. So Peter again, "thank you" - 52 years of EME and still inspiring newcomers. 73 John G4SWX Date: Mon, 10 Oct 2016 16:04:45 +0100 From: "Peter Blair" <g3ltf(a)btinternet.com> Subject: [Moon-Net] My talk on 6cm eme at the RSGB convention To: "Moon-Net" <moon-net(a)mailman.pe1itr.com>, "freetalk moonnet" <moon(a)moonbounce.info> Message-ID: <B51196F09DAE424792422A8D3ED32BD8@PeterKBlairPC5> Content-Type: text/plain; charset="iso-8859-1" My thanks to everyone who sent me pictures, notes etc for this talk It was well received and I understand that there will eventually be film of it and all the talks at the convention on you-tube. I wasnt able to use all the material but the support I received from you all in the 6cm community was terrific. Thankyou again. 73 Peter G3LTF

6 years, 1 month

SVHFS conference coming April 28 and 29, 2017, discount Hotel Rates ends this Saturday, Apr 1

by Gary Greene

If you thinking of coming to the SVHFS convention in Charlotte, NC this year on April 28 and 29 at the Doubletree by Hilton Hotel Charlotte Airport, 2600 Yorkmont Road, Charlotte, NC 28201, this is the last chance for discount room rates. We have arranged rooms at $95, you can call 800-222-TREE and ask for this rate under the name "South East VHF Society", this offer is good until Saturday, April 1st (no joke). The link to reserve you room is http://doubletree.hilton.com/en/dt/groups/personalized/C/CLTAPDT-VHF-201704… and is good until Saturday. We have the registration information on the web site now (http://svhfs.org). The conference fee for pre-registration is $30, Friday's Luncheon is $15, and the Saturday's banquet is $40. I hope to see many of you there, Gary Greene, W2ZV, conference committee member.

6 years, 2 months

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Moon-net March 2017