I had a X300 antenna a long time, and on one day the SWR goes up and it doesn’t work any more. I open it and try to find the problem.
The open X300 in Parts
This capacitor was the problem. I changed it and it works again.
DC2WK Blog
German Ham radio station
Hello!
In order to repair my x-300 antenna I would like to know the capacitor value located
near the antenna base.
many thanks
Avraham Sela 4z1iz
Hi,
thanks for your comment!
Like you see in this picture:
http://dc2wk.schwab-intra.net/wp-content/uploads/2015/01/IMG_2636.jpg
5 pf 1 KV
Best regards
Donald
Hi dc2wk
May i know the value of the capacitor ( the blue one) thanks.
Du1 fhx
Hi dc2wk
May i know the value of the capacitor ( the blue one) thanks
Du1 fhx
Hi Henry
You can read everything in this side. The answer is given some comments over yours.
5 pf 1 KV
Hi donald,
The lower one is 5ph 1kv, how about the blue one? Is that 6.50 pf 1kv?
Thanks
Henry
Yes
5pf 1KV
6.5pf 1KV
Hi Donald.
Can you please tell me the value of UHF session on top of antenna, a friend have this completely burned.
If you can help may thanks in advanced
Sorry No.
I has presented this antenna to a other OM.
I think, 6.5pf 1KV
Hola que tal, tengo el mismo problema, es el tercer capacitor que me quema..el ultimo que puse fue de 5pf 3 3kv, el FT-lo puse con 35W y lo revienta!! cambiare el capa y lo usare con 25W…luego les cuento.
su una X300N diamond originale di un mio collega radioamatore che aveva un problema di piano di massa, con la scusa di smontarla, dentro la base ho ritrovato questi condensatori da 2kV.
Parlando con il proprietario mi ha confermato che lui l’ha comprata nuova, evidentemente Diamond si è resa conto di questo errore e l’ha corretto. Allego le foto che ho fatto:
https://i.ibb.co/k0mfX4x/1a8205c0-3469-4fdd-929d-9472608a39ab.jpg
https://i.ibb.co/Kwdppty/19409549-7e6a-4105-a554-c47c88453b17.jpg
https://i.ibb.co/rFh63Hm/a54e2913-132d-447e-9e9a-1f6ed54119c4.jpg
https://i.ibb.co/HzvJB7T/afe48b6f-04cf-4c37-9aa9-e3cedf653935.jpg