I’ve installed the GAP Titan DX some years ago. Due to maintenance works on my roof, I had to put the antenna down for some weeks.
This week I’ve been able to restore the antenna on the roof. The Gap Titan DX is a vertical dipole with no traps, and with vertical elements making this antenna resonating on from 12 to 30 meters. 80 meters provided from a top capacitor, while 10 and 40 meters depends on the tuning of a cross shaped counterpoise at the base of the antenna.
I’ve already written several times about this antenna and how to tune it on several bands providing also a quick antenna reference you can seen here behind.
According to some OM there is a relation between the 20 meter stub and the 40 meter copper wire length.
Well, today after having restored back the antenna on the roof, I’ve not been able to obtain an acceptable SWR on the 40 meters.
With acceptable I mean SWR < 2.0 on the band. According to GAP this antenna shoud be able to perform well with acceptable SWR on all bands, but in the 10 years I’ve on the top of my head, it never performed on the 30 meters. SWR on 10 MHz has been always > 3.5.
Even today high SWR does not allow me to use on that band.
Here below the SWR reading I’ve captured with my new Antenna Analyzer by HG7AN.
It’s evident how 30 and 40 meters need some solutions.
I’ll try to contact GAP and will post the updates here.
Some pictures of current setup
Sent an email to GAP via their contact form asking support, explaining the issue. Got a fast reply asking me to send some pictures.
I took pictures (posted here too) and emailed them.
I did sent other 2 emails asking for confirmation the did received my pictures
Sent an additional email via their contact form asking for support and confirmation they did receive my emails.
Still no reply.