The mating connector does not need to be that long but when you factor in the case thickness, washers and nut there isn't enough of the thread left to make a solid connection.
On Fri, Apr 12, 2019 at 4:39 PM Ken Hohhof <[email protected]> wrote: > There are bulkhead feedthroughs that fit a D shaped hole, and the SMA > threads start on the outside, but you are looking for 16 mm of thread > outside the box. That’s a lot. > > > > This for example only has 14 mm of thread, and only 6 mm of that is the > SMA thread. > > > > http://www.l-com.com/multimedia/eng_drawings/BA21.pdf > > > > It doesn’t sound like the mating connector needs anything close to 16 mm > of thread. Why do you need so much? Or when you said the plate is nearly > 4 mm thick, did you mean 14 mm? Maybe that’s it. 4 mm isn’t really very > thick, like 5/32 inch. Not enough to consider counterboring. > > > > > > *From:* AF <[email protected]> *On Behalf Of *Adam Moffett > *Sent:* Friday, April 12, 2019 2:44 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Extra Long SMA to U.FL Pigtails > > > > I hear it's not a big deal for those factory complexes in the People's > Republic to crank out custom parts. Like the plan building a radio needs a > special SMA connector, so they just call the plant down the road that makes > those and tell them and they'll make a couple thousand of them. > ....I'm saying just because it exists doesn't mean you or I can buy it. > > I wonder if there's an easy to way countersink the plate. It's easy if > you have a milling machine of course, but I wonder if there's some kind of > drill bit that would make a countersink just big enough for the flange on > your bulkhead connector. It would only have to be 3/8's wide or so. > > On 4/12/2019 1:50 PM, [email protected] wrote: > > Yes, the plate is nearly 4mm thick. I've seen these on radios before so I > know they exist but I just > > can't seem to find them. > > > > On Fri, Apr 12, 2019 at 1:48 PM Ken Hohhof <[email protected]> wrote: > > The screw terminal you refer to is the threads on the SMA bulkhead > connector? I take it you’re mounting it on a thick plate of some kind? > Wow, that’s a lot of thread, good luck. > > > > *From:* AF <[email protected]> *On Behalf Of * > [email protected] > *Sent:* Friday, April 12, 2019 12:22 PM > *To:* AnimalFarm Microwave Users Group <[email protected]> > *Subject:* [AFMUG] Extra Long SMA to U.FL Pigtails > > > > I'm looking for an SMA to U.FL pigtail that has a longer screw terminal. > Most I've found > > have ~14.5mm threads exposed, I'm looking for something closer to 20mm. > > > > I've search online but can't seem to find anything. Anyone know of a > source for this? > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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