Here's two photos behind my modified antenna switch.
www.w0btu.com/files/misc/F-connector_1500+W/
Towards the red antenna switch is a short, brown-jacketed section of RG-59;
then a double-female F barrel; and then black F-6 which goes outdoors to my
transmit antennas.
The brown RG-59 gets *slightly* warm on continous 1500W carrier, but
neither the F barrel nor the F-6 is above ambient temperature.
BTW, F-6 (the CATV version of RG-6) has the same power handling capability
as RG-213.
73, Mike
www.w0btu.com
On Fri, Dec 7, 2018 at 8:22 PM Mike Waters <mikewate@gmail.com> wrote:
> Hi Tim!
>
> That's an excellent thought, but some people do it.
>
> As a side point, I run 1500 watts (>2000 into a dummy load!) *through F
> connectors* and F-6 coax. They don't get the *least* bit warm, even after
> I smell the transformer oil fumes! You just have to be careful (but you
> know that ;-).
>
> 73, Mike
> www.w0btu.com
>
> On Fri, Dec 7, 2018 at 8:07 PM Tim Duffy <k3lr@k3lr.com> wrote:
>
>> When you look at an N connector, specifically the center pin - remember
>> that
>> the N connector center pin is the same as the center pin of a BNC
>> connector.
>>
>> W6NL asked me this question - would you run 1500 watts with BNC
>> connectors?
>>
>> 73
>> Tim K3LR
>> (Only 7-16 DIN and TONS of "quality" UHF connectors at this station
>> TIGHT PL-259s work GREAT - tighten up)
>>
>> -----Original Message-----
>> From: Topband [mailto:topband-bounces@contesting.com] On Behalf Of Mike
>> Waters
>> Sent: Friday, December 07, 2018 8:57 PM
>> To: Frank Donovan; topband; Steve Maki
>> Subject: Re: Topband: Rather use N-type (was Re: The answer to PL-259
>>
>> Thank you, Frank and Steve! I just learned something useful. :-)
>>
>> I bought these N plugs in the early 1980s from Nemal Electronics. Perhaps
>> what you are describing was not available then? (That's a rhetorical
>> question. ;-)
>>
>> If I ever get back on VHF/UHF, I'll get those.
>>
>> 73, Mike
>> www.w0btu.com
>>
>>
>> On Fri, Dec 7, 2018 at 7:26 PM <donovanf@starpower.net> wrote:
>>
>> > Hi Mike,
>> >
>> > Captivated pin N connectors for hardline coax fits tightly over
>> > the center conductor.
>> >
>> > Captivated pin N connectors for flexible coax typically has a
>> > pin that requires solder.
>> >
>> > Floating pin N connectors belong in the trash bin.
>> >
>> > 73
>> > Frank
>> > W3LPL
>> >
>> > ------------------------------
>> > *From: *"Mike Waters" <mikewate@gmail.com>
>> > *To: *lists@oakcom.org
>> > *Cc: *"topband" <topband@contesting.com>
>> > *Sent: *Saturday, December 8, 2018 12:10:38 AM
>> > *Subject: *Re: Topband: Rather use N-type (was Re: The answer to PL-259
>> >
>> > The one I have in my hand has a solder hole in it. I take it that there
>> are
>> > newer ones that have contacts that grip the coax center conductor?
>> >
>> > 73, Mike
>> > www.w0btu.com
>> >
>> > On Fri, Dec 7, 2018 at 6:04 PM Steve Maki <lists@oakcom.org> wrote:
>> >
>> > > Well here's the advantage of captivated center pins: the pin is NOT
>> > > bonded to the center conductor. IOW, if the coax center conductor
>> > > shrinks a bit, it can slide in the center pin and the pin stays put.
>> > >
>> > > And that's exactly what you want it to do - especially with an N
>> > connector.
>> > >
>> > > -Steve K8LX
>> > >
>> > >
>> > > On 12/07/18 14:25 PM, Mike Waters wrote:
>> > >
>> > > > Exactly my experience, even with captivated pins!! And my coax runs
>> > were
>> > > > only about 100' long.
>> > > >
>> > > > The captivating washers were made of TeflonR, *and Teflon cold
>> flows*.
>> > > This
>> > > > was when I lived in Toledo, Ohio when the temperature dropped well
>> > below
>> > > > zero.
>> > > >
>> > > > Four photos of those N connectors are at
>> > > > http://www.w0btu.com/files/misc/N_plugs . See the last two.
>> > >
>> > > > On Fri, Dec 7, 2018, 1:02 PM Richard (Rick) Karlquist <
>> > > richard@karlquist.com>
>> > > > wrote:
>> > > >
>> > > >> My two 500 foot RG-216 military surplus cables both eventually
>> > exhibited
>> > > >> retracted pins on the type N connectors at both ends. I replaced
>> them
>> > > with
>> > > >> PL-259's. ... Success anecdotes about install once and never
>> touch
>> > > again
>> > > >> commercial sites are probably not relevant to ham applications.
>>
>>
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