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10GHz ... from Clee?
I am thinking of going back up on Tuesday, after the Bank Holiday crowds have cleared off. I only have 100mW or so going out at this stage as I haven't yet integrated the 20W PA, but you never know, i
I am thinking of going back up on Tuesday, after the Bank Holiday crowds have cleared off. I only have 100mW or so going out at this stage as I haven't yet integrated the 20W PA, but you never know, i
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By
Robin Szemeti - G1YFG
· #66726
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N-Types for FSJ4-50B
#connectors
https://thedxshop.com/product-category/cables-and-connectors/andrew-heliax/andrew-fsj4-50b-superflexible-coaxial-cable/
https://thedxshop.com/product-category/cables-and-connectors/andrew-heliax/andrew-fsj4-50b-superflexible-coaxial-cable/
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By
Robin Szemeti - G1YFG
· #66712
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10GHz ... from Clee?
I'm going up Clee Hill with my (hopefully) working 10GHz stuff to see if I can hear any beacons ... I'll do my best to appear on KST when I get there, although for reasons best know to itself, I have
I'm going up Clee Hill with my (hopefully) working 10GHz stuff to see if I can hear any beacons ... I'll do my best to appear on KST when I get there, although for reasons best know to itself, I have
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By
Robin Szemeti - G1YFG
· #66704
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N-Types for FSJ4-50B
#connectors
https://www.ebay.co.uk/itm/153473645972 is the FSJ 4-50 variant.
https://www.ebay.co.uk/itm/153473645972 is the FSJ 4-50 variant.
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By
Robin Szemeti - G1YFG
· #66702
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N-Types for FSJ4-50B
#connectors
https://www.ebay.co.uk/itm/153093698742
https://www.ebay.co.uk/itm/153093698742
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By
Robin Szemeti - G1YFG
· #66699
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Stubby WG16 Term?
Yes, I will be there! Happy to trade beer for terms :)
Yes, I will be there! Happy to trade beer for terms :)
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By
Robin Szemeti - G1YFG
· #66685
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Stubby WG16 Term?
Yep, I am aware of the limitations of regulators and the requirement for diodes. Anyway, a lump of graphite has been ordered ...
Yep, I am aware of the limitations of regulators and the requirement for diodes. Anyway, a lump of graphite has been ordered ...
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By
Robin Szemeti - G1YFG
· #66683
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Stubby WG16 Term?
WG16/WR90 ... I'd like to keep it as short as possible, as it will sit behind the dish, and the transverter will sit behind that ... any extra length will just push the transverter further away. I was
WG16/WR90 ... I'd like to keep it as short as possible, as it will sit behind the dish, and the transverter will sit behind that ... any extra length will just push the transverter further away. I was
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By
Robin Szemeti - G1YFG
· #66662
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Stubby WG16 Term?
Looking for a stubby WG16 termination to sit on the 4th port of this relay. Short as possible really ... something like this: Otherwise, I'll just stick a blanking plate on the 4th port of this relay.
Looking for a stubby WG16 termination to sit on the 4th port of this relay. Short as possible really ... something like this: Otherwise, I'll just stick a blanking plate on the 4th port of this relay.
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By
Robin Szemeti - G1YFG
· #66660
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Bolt size for WG16?
Well, I already order a few normal screws on eBay, but I would not object to adding a few "proper" ones with the unthreaded section, they may align better ... I'm bolting flange to relay, so around 3/
Well, I already order a few normal screws on eBay, but I would not object to adding a few "proper" ones with the unthreaded section, they may align better ... I'm bolting flange to relay, so around 3/
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By
Robin Szemeti - G1YFG
· #66652
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Bolt size for WG16?
And success, they are indeed 8-32 UNC. Another step closer to being operational on 3cm. I might actually achieve 3.4GHz, 10GHz and 24GHz this year ... excitement mounts!
And success, they are indeed 8-32 UNC. Another step closer to being operational on 3cm. I might actually achieve 3.4GHz, 10GHz and 24GHz this year ... excitement mounts!
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By
Robin Szemeti - G1YFG
· #66646
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23cm FT* modes
When I built my first 23cm transverter some 30 years ago, it was the "interdigital mixer" design out of the RSGB VHF/UHF Handbook. A couple of the very early MMICs .. one for receive, one for transmit
When I built my first 23cm transverter some 30 years ago, it was the "interdigital mixer" design out of the RSGB VHF/UHF Handbook. A couple of the very early MMICs .. one for receive, one for transmit
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By
Robin Szemeti - G1YFG
· #66608
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Bolt size for WG16?
Number drills get smaller with increasing number, UNC threads get bigger with increasing number, so I don't think it's that.
Number drills get smaller with increasing number, UNC threads get bigger with increasing number, so I don't think it's that.
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By
Robin Szemeti - G1YFG
· #66599
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Bolt size for WG16?
Yep, its very confusing, I have no idea what a "number 4" bolt is. I guess they are roughly equivalent to "BA" sizes ... a sort of parallel system not based on sizes per se. Anyway, I have ordered som
Yep, its very confusing, I have no idea what a "number 4" bolt is. I guess they are roughly equivalent to "BA" sizes ... a sort of parallel system not based on sizes per se. Anyway, I have ordered som
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By
Robin Szemeti - G1YFG
· #66597
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Bolt size for WG16?
Jolly good, I shall order some of those then! It's very confusing as 8-32 is assuming that means 8/32" => 1/4" and they are not that big!
Jolly good, I shall order some of those then! It's very confusing as 8-32 is assuming that means 8/32" => 1/4" and they are not that big!
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By
Robin Szemeti - G1YFG
· #66593
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Bolt size for WG16?
Is there a standard American screw size for waveguide flanges? This WG16 relay I have has something that is around M4, but not M4 so I am guessing it is American thread. I bought some 6-32 UNC, but th
Is there a standard American screw size for waveguide flanges? This WG16 relay I have has something that is around M4, but not M4 so I am guessing it is American thread. I bought some 6-32 UNC, but th
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By
Robin Szemeti - G1YFG
· #66591
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WG16 ...
Yes, I will be at Martlesham. That would be great ... let me know what you want for it.
Yes, I will be at Martlesham. That would be great ... let me know what you want for it.
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By
Robin Szemeti - G1YFG
· #66586
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WG16 ...
Hi, I'm looking for a length of WG16, ideally copper, about 600mm long to make a feed for this 4' dish ... SBRS think they have some, but a quick search of the stock on Friday didn't reveal any. If an
Hi, I'm looking for a length of WG16, ideally copper, about 600mm long to make a feed for this 4' dish ... SBRS think they have some, but a quick search of the stock on Friday didn't reveal any. If an
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By
Robin Szemeti - G1YFG
· #66581
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23cm QRM
I spoke with Bob, he didn't have any more information. I know we are only a secondary user, but I think we need to make sure we keep the RSGB rep informed, before it becomes a bigger problem.
I spoke with Bob, he didn't have any more information. I know we are only a secondary user, but I think we need to make sure we keep the RSGB rep informed, before it becomes a bigger problem.
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By
Robin Szemeti - G1YFG
· #66546
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High temperature solder
Ay, OK, from the other picture, it looked like there was a plate on both sides.
Ay, OK, from the other picture, it looked like there was a plate on both sides.
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By
Robin Szemeti - G1YFG
· #66537
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