|
Tripod Wanted
Look on ebay for surveyor's tripod. https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2380057.m570.l1311.R3.TR11.TRC1.A0.H0.XSurveyor+.TRS0&_nkw=surveyors+tripod&_sacat=0 You may pay £20 if you are
Look on ebay for surveyor's tripod. https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2380057.m570.l1311.R3.TR11.TRC1.A0.H0.XSurveyor+.TRS0&_nkw=surveyors+tripod&_sacat=0 You may pay £20 if you are
|
By
Paul G8AQA
· #56280
·
|
|
UKMicrowave group Subscription - Cheque payments
It is very easy for us youngsters in our 70s to be intolerant of the old uns. I think the cheque facility needs to be retained but discouraged. I think people have highlighted solutions to John's trip
It is very easy for us youngsters in our 70s to be intolerant of the old uns. I think the cheque facility needs to be retained but discouraged. I think people have highlighted solutions to John's trip
|
By
Paul G8AQA
· #56225
·
|
|
waveguide wanted
Hi Ben, I can probably help but you will need to specify what sort of flange you need. A picture would be useful. 73 Paul G8AQA
Hi Ben, I can probably help but you will need to specify what sort of flange you need. A picture would be useful. 73 Paul G8AQA
|
By
Paul G8AQA
· #56108
·
|
|
locked
GB3PKT
There are many grades of stainless steel. Some are poor for strength and others quite strong and are heat treatable. Dangerous to make sweeping statements. Corrosion of adjacent materials and galling
There are many grades of stainless steel. Some are poor for strength and others quite strong and are heat treatable. Dangerous to make sweeping statements. Corrosion of adjacent materials and galling
|
By
Paul G8AQA
· #55865
·
|
|
locked
GB3PKT
Soft bricks and soft mortar are very good at accommodating settlement without cracking but were mostly used well before aerials were thought about let alone rawlbolts. If at all possible drill through
Soft bricks and soft mortar are very good at accommodating settlement without cracking but were mostly used well before aerials were thought about let alone rawlbolts. If at all possible drill through
|
By
Paul G8AQA
· #55846
·
|
|
23cm antenna Tonna or Wimo
The technique you show with a secondary boom may be good for stacking them. I do find it difficult to keep them perfectly straight. Of course the secondary beam could be bigger cross section which wou
The technique you show with a secondary boom may be good for stacking them. I do find it difficult to keep them perfectly straight. Of course the secondary beam could be bigger cross section which wou
|
By
Paul G8AQA
· #55816
·
|
|
Tactics in microwave contest with very few planes.
Maybe a high gain antenna pointing at the home station and a broader one pointing over the other side of the hill. Just connect them together with no active stages. I wonder if it would get us over th
Maybe a high gain antenna pointing at the home station and a broader one pointing over the other side of the hill. Just connect them together with no active stages. I wonder if it would get us over th
|
By
Paul G8AQA
· #55580
·
|
|
What Moon/Sun tracking software is being used.
These might be worth a look. We are using them on a 24" telescope. https://www.cuidevices.com/product/motion/rotary-encoders/absolute/modular/amt21-v-kit Paul G8AQA
These might be worth a look. We are using them on a 24" telescope. https://www.cuidevices.com/product/motion/rotary-encoders/absolute/modular/amt21-v-kit Paul G8AQA
|
By
Paul G8AQA
· #55485
·
|
|
Water cooling question
There is quite a big mismatch between the properties of oil and water so an oil cooler would be much less effective. A full car radiator has to deal with a hundred or so kilowatts but relies on forwar
There is quite a big mismatch between the properties of oil and water so an oil cooler would be much less effective. A full car radiator has to deal with a hundred or so kilowatts but relies on forwar
|
By
Paul G8AQA
· #55458
·
|
|
Dish antenna. A beginners guide. Wanted.
I have some prime focus dishes here - around 1.5m. More than I will ever use. One is ex-G4BAO. You might be able to find pics of it. Let me know what you want. I am working with bigger dishes now. 73
I have some prime focus dishes here - around 1.5m. More than I will ever use. One is ex-G4BAO. You might be able to find pics of it. Let me know what you want. I am working with bigger dishes now. 73
|
By
Paul G8AQA
· #55393
·
|
|
Yagi v Dish on 23cms
One could always reinforce the dish mount from behind with a GRP/polyester car repair pack. We used to use these quite a bit for patching up old bodywork. No sure it would pass the 10 year test these
One could always reinforce the dish mount from behind with a GRP/polyester car repair pack. We used to use these quite a bit for patching up old bodywork. No sure it would pass the 10 year test these
|
By
Paul G8AQA
· #55373
·
|
|
Yagi v Dish on 23cms
Google saves having to dig out the complete OED on almost microfiche! 73 Paul G8AQA
Google saves having to dig out the complete OED on almost microfiche! 73 Paul G8AQA
|
By
Paul G8AQA
· #55361
·
|
|
Loop Yagi material
Aluminox paste seems to be only available down under. https://www.blackwoods.com.au/electrical/cable-jointing-resins-compounds/cable-jointing-products-resins-and-compounds-miscellaneous/compound-joint
Aluminox paste seems to be only available down under. https://www.blackwoods.com.au/electrical/cable-jointing-resins-compounds/cable-jointing-products-resins-and-compounds-miscellaneous/compound-joint
|
By
Paul G8AQA
· #55173
·
|
|
Mixer Diode Bias
Hi Andy, I Have a long term project TG and have found Peripheral Mode Isolators for isolating the tracking output from the HP8566. There are a few on Ebay. Reading other peoples experiences this isola
Hi Andy, I Have a long term project TG and have found Peripheral Mode Isolators for isolating the tracking output from the HP8566. There are a few on Ebay. Reading other peoples experiences this isola
|
By
Paul G8AQA
· #55117
·
|
|
Tuesday night?? 9Cm
Hi Ben, I wonder if it is worth another try? I will have an extra 2m antenna height and a good front end filter. Better either before the contest or late on when things have calmed down. 73 Paul G8AQA
Hi Ben, I wonder if it is worth another try? I will have an extra 2m antenna height and a good front end filter. Better either before the contest or late on when things have calmed down. 73 Paul G8AQA
|
By
Paul G8AQA
· #54861
·
|
|
10GHz progress ...
https://frank.pocnet.net/other/STC/STC_Components_Microwave_Summary_1984.pdf Paul G8AQA
https://frank.pocnet.net/other/STC/STC_Components_Microwave_Summary_1984.pdf Paul G8AQA
|
By
Paul G8AQA
· #54801
·
|
|
Short Backfire Antenna
Same problem with both Firefox and Chrome. G8AQA
Same problem with both Firefox and Chrome. G8AQA
|
By
Paul G8AQA
· #54719
·
|
|
SG-Labs 23cms amplifier problem/solution
I have a similar system that is troubled by a local phone mast. A filter makes a 23dB improvement to background noise in the worst direction. I conclude that there is a strong out of band signal causi
I have a similar system that is troubled by a local phone mast. A filter makes a 23dB improvement to background noise in the worst direction. I conclude that there is a strong out of band signal causi
|
By
Paul G8AQA
· #54631
·
|
|
Réf. : Re: [UKMicrowaves] 13cm filters?
Did you get anywhere with data on these Ben? I have found I have a couple. Paul G8AQA
Did you get anywhere with data on these Ben? I have found I have a couple. Paul G8AQA
|
By
Paul G8AQA
· #54540
·
|
|
Activity List for the UK Microwave Group Low Band Contest - Sunday 5th April
With a little luck I will be on 23 - portable from home! Callsign: G8AQA Locator: IO82QN Bands: 1296Mhz 25W 67 ele Wimo Talkback: ON4KST, Zello SHF Chat, 07967 272 185 Times: Various throughout Paul
With a little luck I will be on 23 - portable from home! Callsign: G8AQA Locator: IO82QN Bands: 1296Mhz 25W 67 ele Wimo Talkback: ON4KST, Zello SHF Chat, 07967 272 185 Times: Various throughout Paul
|
By
Paul G8AQA
· #54503
·
|