On Tue, 17 Aug 2021 09:32:17 -0400 Pete Smith N4ZR <pete.n4zr@gmail.com>
writes:
> I think that reflector users are (or should be) appropriately aware
> that
> responses reflect a wide variety of interests, knowledge and
> experience.
>
> 73, Pete N4ZR
Yes, and it's called "Barbershop" or "Curbstone" advice vs paid,
professional advice. :D)
73, Charlie N0TT
> Check out the new Reverse Beacon Network
> web server at <http://beta.reversebeacon.net>.
> For spots, please use your favorite
> "retail" DX cluster.
>
> On 8/16/2021 11:07 PM, Tim Duffy wrote:
> > Remember we are giving advice to all hams on this reflector.
> >
> > We want to insure we are giving the correct advice
> >
> > There are no short cuts to doing things the right way
> >
> > There is only one way to ground and bond - the right way.
> >
> > 73
> > Tim K3LR
> >
> > -----Original Message-----
> > From: RFI [mailto:rfi-bounces+k3lr=k3lr.com@contesting.com] On
> Behalf Of K9MA
> > Sent: Monday, August 16, 2021 11:03 PM
> > To: Eddie Edwards; rfi@contesting.com
> > Subject: Re: [RFI] DFing intermittent connection
> >
> > We get plenty of lightning in Wisconsin, but in my case the shunt
> around
> > the thrust bearing (and rotator) is mainly to prevent harmonic
> > generation when shunt feeding the tower. If the tower gets a
> direct
> > hit, damaged bearings will be the least of my worries.
> >
> > 73,
> > Scott K9MA
> >
> > On 8/16/2021 9:43 PM, Eddie Edwards wrote:
> >> As long as you don't get a lot of lightning up in Wisconsin, the
> impedance of your entire ground protection system probably doesn't
> matter as much either. But isn't that the point of all the bonding
> and grounding just in case?
> >> YMMV
> >>
> >> 73, de ed -K0iL
> >>
> >> -----Original Message-----
> >> From: RFI
> <rfi-bounces+eddieedwards=centurylink.net@contesting.com> On Behalf
> Of K9MA
> >> Sent: Monday, August 16, 2021 17:42
> >> To: donovanf@erols.com; rfi@contesting.com
> >> Subject: Re: [RFI] DFing intermittent connection
> >>
> >> Hi Frank,
> >>
> >> That makes sense. All I ever used it for was as a shunt around
> the thrust bearing, for which the impedance probably wasn't that
> critical.
> >>
> >> 73,
> >> Scott K9MA
> >>
> >>
> >> On 8/16/2021 4:44 PM, donovanf@erols.com wrote:
> >>> Hi Scott,
> >>>
> >>> Braid is always a poor choice outdoors unless its under pressure
> and
> >>> protected from moisture such as inside jacketed coax cable
> >>>
> >>> When its no longer under pressure and protected from moisture
> the RF
> >>> resistance of braid goes up dramatically because the crossovers
> in the
> >>> braid no longer conduct effectively.
> >>>
> >>> That's why the appropriate choice for an outdoor conductor is
> stranded
> >>> wire or solid wire and never braid
> >>>
> >>> 73
> >>> Frank
> >>> W3LPL
> >>>
> >>>
> ----------------------------------------------------------------------
> >>> --
> >>> *From: *"K9MA" <k9ma@sdellington.us>
> >>> *To: *donovanf@erols.com, rfi@contesting.com
> >>> *Sent: *Monday, August 16, 2021 9:27:16 PM
> >>> *Subject: *Re: [RFI] DFing intermittent connection
> >>>
> >>> Gee, it's worked for me for years. Not much salt spray in
> Wisconsin.
> >>>
> >>> 73,
> >>> Scott K9MA
> >>>
> >>> On 8/16/2021 12:32 PM, donovanf@erols.com wrote:
> >>>
> >>> Jim,
> >>>
> >>> Please ignore Scott's advice, it will cause tower
> corrosion and
> >>> quickly fail
> >>>
> >>> 73
> >>> Frank
> >>> W3LPL
> >>>
> >>>
>
------------------------------------------------------------------------
> >>> *From: *"K9MA" <k9ma@sdellington.us>
> >>> *To: *jimk8mr@aol.com
> >>> *Cc: *rfi@contesting.com
> >>> *Sent: *Monday, August 16, 2021 4:30:35 PM
> >>> *Subject: *Re: [RFI] DFing intermittent connection
> >>>
> >>> Or just use the braid from some RG8 and a couple hose
> clamps.
> >>>
> >>>
> >>>
> >>> ----------
> >>>
> >>> Scott Ellington. K9MA
> >>>
> >>> --- via iPhone
> >>>
> >>> > On Aug 16, 2021, at 9:27 AM, jimk8mr--- via RFI
> >>> <rfi@contesting.com> wrote:
> >>> >
> >>> > ?The kit is basically a very heavy, very flexible
> cable, six
> >>> feet or so, with lugs on both ends, and clamps with a
> large flat
> >>> surface to attach to the mast and to the tower leg. I'd
> think that
> >>> the bottom lug could be attached to a tower bolt, or some
> other
> >>> low resistance connection to the tower.
> >>> > It would seem to also be simple to homebrew something a
> bit less
> >>> rugged, perhaps using a piece of RG-8, shield and center
> conductor
> >>> connected together.
> >>> >
> >>> > 73 - Jim K8MR
> >>> >
> >>> >
> >>> >
> >>> > -----Original Message-----
> >>> > From: EDWARDS, EDDIE J via RFI <rfi@contesting.com>
> >>> > To: RFI List <rfi@contesting.com>
> >>> > Sent: Mon, Aug 16, 2021 9:09 am
> >>> > Subject: Re: [RFI] DFing intermittent connection
> >>> >
> >>> > Just FYi...They told me they only have the bypass kits
> for
> >>> standard Rohn towers, but not for the BX or HDBX series
> towers.
> >>> Need to make your own for other non-rohn configurations.
> >>> >
> >>> > 73, de ed -K0iL
> >>> >
> >>> > -----Original Message-----
> >>> > From: RFI On Behalf Of jimk8mr--- via RFI
> >>> >
> >>> >
> >>> > You might look into DX Engineering's Bearing Bypass
> Ground Kits
> >>> DXE-BBGK-2-25-P.
> >>> > I installed one yesterday for K8AZ. I'm not sure if Tom
> had a
> >>> particular problem or it was just as a precaution. It easy
> to
> >>> install, the only issue in my case was that the tower had
> been
> >>> painted, so some paint scraping was in order. But much
> easier than
> >>> replacing a thrust bearing!
> >>> >
> >>> > 73 - Jim K8MR
> >>> >
> >>> > _______________________________________________
> >>> > RFI mailing list
> >>> > RFI@contesting.com
> >>> > http://lists.contesting.com/mailman/listinfo/rfi
> >>> > _______________________________________________
> >>> > RFI mailing list
> >>> > RFI@contesting.com
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> >>>
> >>> _______________________________________________
> >>> RFI mailing list
> >>> RFI@contesting.com
> >>> http://lists.contesting.com/mailman/listinfo/rfi
> >>>
> >>>
> >>> --
> >>> Scott K9MA
> >>>
> >>> k9ma@sdellington.us
> >>>
> >> --
> >> Scott K9MA
> >>
> >> k9ma@sdellington.us
> >>
> >> _______________________________________________
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> >>
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