Lemo 1-pin antenna connector for Wisycom MTP40s

[marilo]

I want to be able to connect an external antenna to my Wisycom MTP40s when using it as TX for my IEM. Need  to make a cable with 1-pin Lemo on one end and SMA or BNC on the other.

What's the name of the 1-pin lemo connector I need?

Any recommendations for a well suited cable for this? The length needs to be 1-3 meters 

[humbuk]

https://artaudioparts.eu/products/055640-1-pin-lemo-connector-for-sennheiser-sk1063-sk2032-mke2-1053

https://www.ebay.co.uk/itm/254961634937?hash=item3b5ce5ce79:g:VhAAAOSwXOBgjAg5

https://www.nakas.gr/en/proionta/epang-kos-ichos-eikona/mikrofona/parelkomena-mikrofonon/kalodia-kai-adapters/sennheiser-sennheiser-055640-lemo-connector-1-pin_595150/

 

It can be bought, but I'm afraid there are special crimping pliers for that. I had a lemo - SMA reduction done in Sennheiser service.

 

[Kambor]

Any new options in this regard? It can't be such an obscure connector...

[The Documentary Sound Guy]

If it's anything like a 3-pin Lemo (and it looks like it shares the same headshell), a 0.1 inch crimper will work just fine for the cable crimp.  Bear in mind that the "correct" crimping diameter is also somewhat dependent on the diameter of the cable.  A smaller cable needs a smaller crimp, even if the sleeve is a bit too large for it.  I've actually noticed that the "official" lemo crimper ends up being loose on some of the common microphone cables that are terminated with 3-pin Lemo.

If you also need to crimp in the centre pin, that requires more precision, and I'd recommend using Lemo's tool for that.  After poking around in Lemo's catalogue, I stumbled across this AliExpress post that claims to be compatible with Sennheiser antennae, though it's an obvious knock-off, not a genuine Lemo part:  https://www.aliexpress.com/item/1005004835240501.html

However, the listing identifies the Lemo part number as FVS.00.250.NTCE24 .  I *think* any part number starting with FVS.00.250 *should* work, and maybe also FVG.00.250.  I'm guessing here, so your mileage may vary.  You'll probably need to order the strain relief boot separately, but it looks like the same boot as the 3-pin Lemo, so try Lemo part no GMF.00.018.DN .

 

Based on the image, you may also need a special tool to tighten the collar, which Lemo sells for an obscene amount.

There may be other compatible models as well (for example, a push-pull headshell might be FGS or FGG).  As far as I can decipher Lemo's model numbering system, the important parts are 00.250, which identifies a single-pin coaxial connector in the appropriately keyed and sized connection.)

Long story short, trying to do this yourself may set you back a bundle in time, special tooling, and trial and error.  I'd try to con your local repair shop into taking on that research for you.

BTW, in case it wasn't clear above, the model numbers I cited are educated guesswork.  I haven't confirmed that they work.  You still need to do your own research; but what I shared should help get you started.

And if you do end up going this route, please report back and confirm the model numbers that work.

[Dejan Ceko]

How about this ?

https://ndt.nu/en/ultrasonic/cables-adapters/adapters/adapter-lemo-01-male-bnc-female/a-391-20000012

[WaterlooNorm]

Hi Marilo. Wisycom Rentals Canada has a YouTube video on how to use a little adapter to remote your MTP40/41/60 (not 62) antennas: 

 

[marilo]

Yes, I´m aware of these adapters but wouldn´t use them. Seems like you could easily break the chassis contact if you're not very careful.