RFQ: Threaded Antenna Coupler

mediopolis · Feb 17, 2017

Hello. I'm restoring two humvee's and just received my antennas and bases, but didn't realize the elements and bases don't fit! So I am in need of making 3 small threaded reducers, so I can mount these antennas on the different bases. I attached my cad drawing and image of the antenna/base. I'm no machinist, so excuse the drawing if not perfect and ask me for clarification on anything!

I am reducing a 1.25" - 8 to 1" - 8. Having it done in hex bar stock to match would be cool, but regular round metal is fine for this application. Let me know if anyone is interested and the price. Thanks,
Josh

HIGH RES PDF DRAWING

pianoman8t8 · Feb 18, 2017

What material?

mediopolis · Feb 18, 2017

pianoman8t8 said:
What material?

Aluminum or steel would work for this. Steel is what the screw bases are made from.

Guest · Feb 18, 2017

Are you going to be able to register it for street use in your state? Had a friend who was high bidder in an online auction then found out in California where he lived they cannot be made street legal, so he became a non performing bidder. I actually did some custom work on one decades ago, has to have the must uncomfortable seat and driving position of anything I ever sat in.

Ox · Feb 19, 2017

Just an FYI, but your text says 1.25, while your print says 1.125.

------------

Think Snow Eh!
Ox

mediopolis · Feb 19, 2017

Thx for the info. Im updating that shortly. I actually had the wrong dimensions...

Bottom = 1" - 8
Top = 7/8" - 9

PDF UPDATE

robert123 · Feb 19, 2017

Is the electical connection in the center insulated from the outside? I see different materials but cannot tell from the picture.

mediopolis · Feb 20, 2017

Dualkit said:
Are you going to be able to register it for street use in your state? Had a friend who was high bidder in an online auction then found out in California where he lived they cannot be made street legal, so he became a non performing bidder. I actually did some custom work on one decades ago, has to have the must uncomfortable seat and driving position of anything I ever sat in.

Yeah it's street drive-able

I love them, but I also upgrade the seats a little bit with better foam since it's my daily driver.

mediopolis · Mar 1, 2017

Thread closed, I found my machinist. Thanks for all the RFQs everyone!

npolanosky · Mar 1, 2017

robert123 said:
Is the electical connection in the center insulated from the outside? I see different materials but cannot tell from the picture.

Yes, it should be. If everything is not connected properly where it should be and insulated properly where it isn't you can easily pop your radio when you go to transmit. The center is usually the active element; if you make the coupler without that connected, your antenna isn't going to do anything for you.

Ianagos · Mar 20, 2017

I'd like to mention that the reason for that issue is because I believe you have a MRc-145 mount and vrc-110 antennas. Or the other way around . This is a common problem a lot of the radio operators make and accidentally grab the wrong antennas.

Also your adaptor makes the antenna useless.

Search

Largest Manufacturing Technology Community on the Web

Search

RFQ: Threaded Antenna Coupler

mediopolis

Plastic

pianoman8t8

Hot Rolled

mediopolis

Plastic

Guest

Guest

Ox

Diamond

mediopolis

Plastic

robert123

Stainless

mediopolis

Plastic

mediopolis

Plastic

npolanosky

Cast Iron

Ianagos

Stainless

Similar threads