My experience in running both was that were different in performance.
The 5/8 was shorter than the .64 antenna.
The 5/8 had a top hat, the .64 did not.
The 5/8 had 3 groung radials. The .64 had 4.
The 5/8 had according to the catalouge 4 db gain. The .64 had accordingnto the catalouge 4.5 db gain.
So IMHO they are 2 different antennas.
Once again this was based on my experience and I referenced the catalouge to double check my memoey on them being different.
Check out page 84
1980 Radio Shack Catalog Pages 51 to 100
My experience in running both was that were different in performance.
The 5/8 was shorter than the .64 antenna.
The 5/8 had a top hat, the .64 did not.
The 5/8 had 3 groung radials. The .64 had 4.
Doing some attic cleaning and came across my Radio Shack ground plane base antenna. I believe the box states 0.64 wave. Is there any marketable value to this antenna? It is in very good condition and wasn't outside for very long.
It all depends on the market. Sell it locally if there are a few cb diehards around you. The shipping cost on Ebay might be cost prohibitive for a lot of potential buyers.
The point made above regarding the 500 or Sirio 5000 is also going to be a hurdle, most diehards already have a ground plane/quad or one of the aforementioned. However, with that said, if you were local I would buy it for $50 (if you brought it to my house and helped me set it up) just to try it out and have it as a backup.
Thanks for responding. I will try to sell locally at the next hamfest in the area. Atleast I now know there is "some" value to it. I wondered if it were worthless and I would be using segments as tomato stakes.