Eric,
USE THE RADIALS. I tried using a couple that had lost them to the wind/ice
also and the performance is pretty poor. I just made the radials out of some
aluminum stock and bought a new hose clamp. RFS gave me the exact dimensions
for the radials for 440-450. If I find them I'll post them. Otherwise if you
call they should give them to you.
Andy KC2GOW
kk2ed <[EMAIL PROTECTED]> wrote:
I tested the antenna using two adapters to get from the UHF male of
the antenna itself to an N female. But likewise, I don't like using
adapters, especially high up on a tower where it's not easy to get to.
The part is labeled (stamped) as follows:
50896 0410-25
The stamping looks just like an Amphenol or Kings style marking.
I tried to search Ampenol, King, and a few others, but can't seem to
locate the OEM mfg. Anyone recognize the number above to decipher
who the OEM is?
Eric
KE2D
--- In [email protected], "Jack Taylor" <[EMAIL PROTECTED]>
wrote:
>
> Donno about UHF radials but I've fabricated my own for the VHF
Stationmasters. If you
> are unable to locate the desired fitting you may be able to use a
UHF double female
> barrel adaptor on the UHF male at the antenna and then use a UG-83
adaptor (which is
> a UHF male to type N female). I personally don't like the idea of
double adaptors but
> should work in a pinch.
>
> 73 de Jack - N7OO
>
> ----- Original Message -----
> From: kk2ed
> To: [email protected]
> Sent: Friday, September 07, 2007 4:06 PM
> Subject: [Repeater-Builder] Re: Celwave Stationmaster part
identification help needed - RFS is useless
>
>
> I called RFS this afternoon. Sad times, indeed. First of all no
one
> there could identify the connector/adapter part. Second of all,
they
> claim "no spare parts available" for Stationmaster antennas. I
even
> tried to buy a set of radials for a PD455 that has lost them, and
> they don't even offer them separately!
>
> Anyone have a bad UHF Super StationMaster that they want to sell
off
> the radials or coaxial connector/adapter from?
>
> To top matters, the antennas aren't even built in the states
anymore,
> and are contracted out to a non-RFS company. One more nail in our
> industrial coffin!
>
> One another note - has anyone run a PD455 with and without the
> radials, and noted the difference in performance?
>
> Eric
> KE2D
>
> --- In [email protected], "kk2ed" <kk2ed@> wrote:
> >
> > Good Evening,
> >
> > I have a PD455 Super Stationmaster that is about 12 years old.
I
> > recently replaced it due to and SWR issue. I suspected a jumper
> > issue. But since it is so high up on a tower, I didn't want to
take
> > any chances while having the climbers rig the tower, and pay
twice,
> > so I went ahead and replaced the antenna as well as the jumper.
> >
> > Well, come to find out, the problem was that the LDF4-50 jumper
> came
> > loose from the side arm, and the stress pulled the center pin
in on
> > the N connector, thus causing an arc condition inside the N
female
> > connector at the bottom of the antenna. To make matters worse,
the
> > actual N Female termination was half unscrewed from the bottom
of
> the
> > antenna.
> >
> > Once on the ground, I decided to unscrew it out completely. To
my
> > suprise, it looks like the antenna is actually terminated into
> > something resembling a UHF male connector embedded into the end
of
> > the inner assembly, and a UHF female to N female adapter is
screwed
> > in at the factory, providing the N female termination as
ordered
> I'm
> > guessing that if some other termination (DIN or UHF) is
ordered, a
> > different adapter is screwed in.
> >
> > Anyone familiar with this adapter, or know where I can obtain
said
> > replacement adapter? I have some standard UHF female - N female
> > barrel adapters, but they are much shorter and not of the
quality
> > like the Celwave unit. I don't want to trust a cheap adapter at
> 500ft
> > in the air!
> >
> > I'll call RFS when I get a chance, but based on recent
> correspondence
> > with them, I don't hold much hope getting any support from
them.
> Sad
> > part is their old factory in Marboro NJ was a mile from my
office -
> > in the early 90's telecom boom days I used to drive my truck
there
> > and pick 30 Statiomasters up at a clip, no cardboard tubes
needed!
> > Now their old office and testing grounds is a strip mall, and
the
> > factory land has been surrounded by million dollar homes!
> >
> >
> > Eric
> > KE2D
> >
>
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