WTB - CHP Whip Clip

[mac88chp]

The ASP-121 whip is not threaded. It comes with and fits into an adapter (held by a set screw) which is threaded to fit into the top of the ASP-570 spring. It all works together with the ASP=3 ball mount and is what is correct for use on a CHP car.



See the product tech sheets for all these parts here:

http://public.fotki.com/Classicchp/s...ang_technical/

[28HopUp]

I realize that this is turning from a WTP thread into a technical post, but I'd like to ask for some clarification.

http://www.specialservicemustang.net/CHP2.htm

The above link says that the whip was 96" in length, yet it was posted in this thread that the correct length was calcualted to be roughly 66". Which is it?

I received an authentic CHP whip antenna that was roughly 66" in length (mailed to me from California with a shipping label folded around the shaft like a flag at half-mast). However, I really don't see how a 66" long antenna would reach the clip by the doorjam. Was the shorter antenna used without clipping it into the doorjam?

Again, there seems to be conflicting infomation - just seeking wise counsel here boys!

[ImEvil1]

Bill,

You are correct. It's a typo. The replacement whip is 96 inches in length, and has to be cut to fit.

Mike C.,

If it's OK with you, when I fix the above in the Resto Doc, I'd like to post the brochure pic that you put into the thread.

[Andy]

So Motorola modified the Micor for the CHP
yet Antenna Specialist Co. made the Radio shop use an Adapter and hacksaw
for the Antenna.
........got it

[28HopUp]

I believe this is Mike C's pic -




In terms of the clip, I read that this is the correct stuff for the non-conductive material -

http://composite-laminates.com/canvas-C-CE-sheets.htm


And according to mac88chp, the correct thickness is 3/8" (0.375"). So I could buy a 12"x12" sheet and cut several of these out on a bandsaw if somebody could provide me with the correct dimensions.

Fabricating the bracket from aluminum stock would be the next project.

[Andy]

Here is the COMPLETE link ............Page 33
http://www.hovapa.com/editables/prod...mr_catalog.pdf
Bill jr. is your low Antenna one piece or does it have an adapter set screw thing?

[28HopUp]

Originally Posted by Andy

Here is the COMPLETE link ............Page 33
http://www.hovapa.com/editables/prod...mr_catalog.pdf
Bill jr. is your low Antenna one piece or does it have an adapter set screw thing?

Thanks for the link Andy. The shorter 66" (estimated based upon standing next to it and judging from my height) has the same base as the ASP-121 shown in that link. The threaded, hex-sided base has three set screws that hold the antenna in place. The tip of the antenna appears snipped off and notched on two sides with a small steel ball with a hole through it that crimped to the antenna. Wish I could snap a picture, but the small detail would be lost with my cruddy camera.

[mac88chp]

Antenna length is determined by the frequency used to transmit. The CHP whip was used for their low-band communications which are in the 42 Mhz range (see calculator in my earlier post).

Bill - My 66" whip fits into the clip, which is installed in the original holes left on my car, like a glove. Note that the clip bracket on my car is not quite prototypical. The original has much sharper bends in it to fit the door channel profile.

Mike - yes, go ahead and use those data sheets on the site. Let me know if you can't download the original images and I'll email them to you. You can have anything else you find in that album for the site as well.