question on cb antenna for 88 chp

88chpnotch · #1 02-20-2008, 08:44 PM

where can i get a replacement cb antenna for the quarter panel on my 88 chp?i am just curious so when i am ready to purchase one i know where to go.

ImEvil1 · #2 02-20-2008, 09:02 PM

The base is Antenna Specialists ASP-3, the spring ASP-570, and the whip itself is a 96 inch one. Mike C. could confirm the last part. I need to add those to the Resto doc.

It's actually not a CB antenna.

Here's a place that has the bases....you may be able to google the model numbers and find one that's cheaper, though. Good luck.

http://www.hol4g.com/ac/search.aspx?...e=1&PerPage=20

ImEvil1 · #3 02-20-2008, 09:22 PM

Here's the whip, model 121. Not sure about the vendor's website, though.

http://cell-phone-accessories-wholes...D&ProdID=17432

That would be for a CB radio, if you wanted to go that route. The VHF length would be 66.85 (thanks Bud, W4ata, for the info).

Andy · #4 02-21-2008, 01:15 AM

468 divided by frequency in Megahertz divided by two= antenna length.
CB HALF Wave whip Antenna
468 divided by 27.5 divided by two= 102.10908 inches
CHP Low band HALF Wave whip Antenna
468 divided by 43. divided by two= 65.30232 inches.
Find...................... (hard to find these days) a stainless steel CB half wave whip antenna
102 Inches and cut it to 65 inches. like Mike said the Spring and ball mount is Unique
and a Commercial Grade Antenna specialist product.

mac88chp · #5 02-21-2008, 03:09 AM

Whip is ASP-121. AS spec sheets for the whip antenna parts are here:

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

Maxrad bought out Antenna Specialists. Much of the AS line is still carried by them, check here:

http://www.maxrad.com/index.cgi

w4ata · #6 02-21-2008, 08:31 PM

Quote:

Originally Posted by Andy

468 divided by frequency in Megahertz divided by two= antenna length.
CB HALF Wave whip Antenna
468 divided by 27.5 divided by two= 102.10908 inches
CHP Low band HALF Wave whip Antenna
468 divided by 43. divided by two= 65.30232 inches.
Find...................... (hard to find these days) a stainless steel CB half wave whip antenna
102 Inches and cut it to 65 inches. like Mike said the Spring and ball mount is Unique
and a Commercial Grade Antenna specialist product.

You have to remember that the ball mount and spring radiate also so you have to include them in your total length for a resonant antenna. Another words once you determine your proper antenna length you have to subtract the ball and spring length from it and then cut your whip. These lengths are critical if you have a functional transmiting radio that you are licensed to operate but for a static display you don't have to be exact.

Andy · #7 02-22-2008, 01:14 PM

We could factor in the Coax loss and cut the Antenna to the actual frequency. (to be exact) and correct.

OR just indicate by a formula that the Higher the Frequency the shorter the Antenna. I have seen 102 in.CB Whip Antennas used and it looks so wrong with
a Huge bow at the end. some people will always be able to buy or find off the shelf what
they want and or need. I like to Make and build. But as you said
for a static display you don't have to be exact
_ . _