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Re: [Amps] "N, " "TNC" and "BNC" connectors are rated at 500 Watts and

To: "Fuqua, Bill L" <wlfuqu00@uky.edu>
Subject: Re: [Amps] "N, " "TNC" and "BNC" connectors are rated at 500 Watts and work at 1, 000 Watts as log as the load is good..
From: Drax Felton <draxfelton@gmail.com>
Date: Mon, 11 Nov 2013 13:51:32 -0500
List-post: <amps@contesting.com">mailto:amps@contesting.com>
For that matter frequency can't be high or low... That's the wrong 
measurement... It's actually just more or less often, right?  Something being 
high is relative to the observer. 


> On Nov 11, 2013, at 1:37 PM, "Fuqua, Bill L" <wlfuqu00@uky.edu> wrote:
> 
> Isn't "UHF Connector" an oxymoron?
> 73
> Bill wa4lav
> 
> ________________________________________
> From: Amps [amps-bounces@contesting.com] on behalf of Peter Voelpel 
> [dj7ww@t-online.de]
> Sent: Monday, November 11, 2013 1:35 PM
> To: 'Amps'
> Subject: Re: [Amps] "N, " "TNC" and  "BNC" connectors are rated at 500 Watts 
> and work at 1,     000 Watts as log as the load is good..
> 
> My 2m equipment runs 2.5KW out via N connectors since 1988.
> Of course all my connectors and relays are made in Germany by Spinner or RFS
> and no Chinese or US crap.
> 
> 73
> Peter
> 
> -----Original Message-----
> From: Amps [mailto:amps-bounces@contesting.com] On Behalf Of Carl
> Sent: Montag, 11. November 2013 18:40
> To: N1BUG; amps@contesting.com
> Subject: Re: [Amps] "N," "TNC" and "BNC" connectors are rated at 500 Watts
> and work at 1,000 Watts as log as the load is good..
> 
> My 2M amp runs a solid 1500W with N connectors at the amp, transfer relay,
> Bird line section, and up at the rotor loop, power divider and antennas.
> Never blew one.
> 
> Of course all are US made mil spec from hamfests, etc and no import crap.
> 
> The 432 military cavity ran 1000W AM carrier, 4000W PEP, thru N's. I guess
> its all in the details such as who made them. I cant run that amp at 1500W
> here without upgrading the feed and antennas.
> 
> Carl
> KM1H
> 
> 
> 
> ----- Original Message -----
> From: "N1BUG" <paul@n1bug.com>
> To: <amps@contesting.com>
> Sent: Monday, November 11, 2013 6:58 AM
> Subject: Re: [Amps] "N, " "TNC" and "BNC" connectors are rated at 500 Watts
> and work at 1, 000 Watts as log as the load is good..
> 
> 
>> My weak mind is trying to understand the problem. Maybe it's something to
>> do with the imbalance of the antenna?
>> 
>> I ran QRO significantly exceeding this definition through N connectors at
>> 144 MHz for many years without ever losing one. SWR was often well above
>> 2:1 (more than 3:1 with any ice or snow) and the feedline typically was
>> 150 feet or less of Andrew LDF5-50A (7/8 heliax), with runs as short as 60
> 
>> feet being in use most of the time. There was an N connector at the
>> transmitter end too.
>> 
>> I can think of others who have abused N connectors even more without
>> problems.
>> 
>> 73,
>> Paul N1BUG
>> 
>> 
>> 
>>> On 11/11/2013 03:04 AM, Roger (K8RI) wrote:
>>>> On 11/11/2013 2:03 AM, Charles Harpole wrote:
>>>> Notice that the Alpha 76a warns to put no more than 100 watts thru it on
> 
>>>> stand by.
>>> 
>>> Having used, misused, and abused N-type connectors, experience in the
>>> real world has shown me that these are not connectors to use for QRO.
>>> Yes, I know hams who have used them at the legal limit for years,
>>> 
>>> I have found N-type will run the legal limit if the SWR is low AND to
>>> you QRO is not 1 watt over the 1500 and usually at the end of several
>>> hundred feet of inexpensive coax.
>>> 
>>> With a center fed, sloping dipole, which is far from being a balanced
>>> antenna, I have blown Male and the double female connectors by moving 50
>>> to 100 KHz off resonance.  I've also had nearby lightening strikes take
>>> them out.
>>> 
>>> I'd prefer DIN 7-16 connectors, but haven't found a source at reasonable
>>> prices.  Although their construction is such that a small shop could
>>> easily copy the design.
>>> 
>>> UHF connectors are fine if properly weatherproofed and the loss through
>>> 50 MHz isn't enough to be worth mentioning.  I just do not like their
>>> lack of strength and they start to get expensive to fit LMR-600.
>>> 
>>> I'd limit my use of BNCs to a 100 watts as do you or replace them with
>>> UHF or N type for a couple hundred watts.
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>> 
>> 
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> 
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