Over the years I have receive a lot of questions about the inners of the V2000 50-144-432 MHz antenna. I guess it is because of
this. The most common question was about the capacitor values: many hams have burn them out and want to repair the antenna.
Recently I got a mechanically damaged single piece fiberglass V2000, and I took the opportunity to do a complete antenna teardown:
Well, it is not the best photo collage in the world, but I guess it will do the work. Most problems appear in the matching section, so here are the details:
I hope with this info you will not have any problem to repair your V2000 antenna.
Miguel A. Vallejo, EA4EOZ
ReplyDeleteam i correct in saying that 12j = 12pf @+- 5 %?
Probably, but almost certainly.
DeleteI have a V2000 with the EAV2000 Radials fitted, but my best SWR is at 52.5 MHz which makes me think my model might be a "A" model for 52-54 MHz though it was bought from a reputible UK retailer. At 50.2 MHz its 3:1.
ReplyDeleteYou can try to put a little longer radials, maybe 5cm longer. They should move the SWR cuve down in frequency. Good luck!
DeleteMy V2000 looks a little bit different:
ReplyDelete[img]https://up.picr.de/41569428yl.jpg[/img]
[img]https://up.picr.de/41569429kf.jpg[/img]
[img]https://up.picr.de/41569430oq.jpg[/img]
Daniel
Very interesting... your antenna seems to be a new version.
DeleteGood day. I found your V-2000 antenna repair site. I am sending my measured values in the attachment. I will adjust the radials to the desired length. But I have a question. What are the values of the capacitors? Is everything in picofarads? What material is used in capacitors? Sorry, I don't have an electrical education. I am sorry for my bad English.
ReplyDelete73, Roman OK2BYH
Yes, they are in picofarads
Delete