Appears that the so called mishandling of Cushcraft and Hy-Gain antennas
and MFJ's inability to correct it is problematic.
Everything from the MA6B's with parts missing and wrong tubing lengths to
detuned verticals that don't tune.
I will always buy Mosley, never an issue and always reliable.
Glenn, VA7UO
On Thu, Jul 18, 2019 at 9:56 AM K9MA <k9ma@sdellington.us> wrote:
> Cushcraft confirms that the traps are supposed to have vent holes, like
> the originals. I've had to modify the other traps to enlarge the holes
> and cover them with screen to keep bugs out, so I'll just give the new
> ones the same treatment. Voids the warranty, but that's life.
>
> The TH7 I had up for almost 30 years never had a trap problem. (Too high
> for the grass spiders, or whatever got into the A3 trap 20 feet below?)
> The HyGain traps have end caps that seal much better around the inner
> tubing, 3 vent holes in the trap, a small hole on the bottom of each end
> cap, and a small gap on the bottom where the end cap meets the outer
> case. Seems to work.
>
> 73,
>
> Scott K9MA
>
> On 7/18/2019 11:14, Joe Ciarcia wrote:
> > Original A3S traps have bleed holes at the bottom of the traps. Grass
> > spiders would get in and build nests. The solution was to cover the
> holes
> > with a screen material. Perhaps a drain hole in the end cap solved that
> > problem. In any case I think drain holes are necessary. Joe
> >
> > On Thu, Jul 18, 2019, 11:12 AM <n8de@thepoint.net> wrote:
> >
> >> Not sure what Cushcraft/MFJ is doing with the traps now, but, some
> >> other manufacturers in the past used sealed traps with a 'bleed hole'
> >> at the bottom of an end cap.
> >> 73
> >> Don
> >> N8DE
> >>
> >>
> >> Quoting Glenn Pritchard <gpritchard7000@gmail.com>:
> >>
> >>> Regardless of how they showed up you still must have vent holes in
> >>> the traps. I had a MA5B twenty years ago and although it had vent or
> >>> moisture holes the traps still collected water.
> >>> Put the traps on a drill press and drill small 1/8 holes in the covers.
> >>> Make sure when assembled the holes face down.
> >>>
> >>> Glenn, VA7UO
> >>>
> >>> Sent from my iPhone
> >>>
> >>>> On Jul 17, 2019, at 9:35 PM, K9MA <k9ma@sdellington.us> wrote:
> >>>>
> >>>> I recently bought some replacement traps for my old A3S from
> >>>> MFJ/Cushcraft. Unike the originals, the replacements have no vent
> >>>> holes. Among other problems, the original traps tended to collect
> >>>> moisture and take a long time to dry out, so I'm concerned that the
> >>>> replacements might be even worse. Does anyone have any experience
> >>>> with these unvented traps?
> >>>>
> >>>>
> >>>> 73,
> >>>>
> >>>> Scott K9MA
> >>>>
> >>>> --
> >>>> Scott K9MA
> >>>>
> >>>> k9ma@sdellington.us
> >>>>
> >>>> _______________________________________________
> >>>>
> >>>>
>
> --
> Scott K9MA
>
> k9ma@sdellington.us
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|