[Amps] "N, " "TNC" and "BNC" connectors are rated at 500 Watts and work at 1, 000 Watts as log as the load is good..

[Hardy Landskov]

----- Original Message ----- 
From: "Dr. David Kirkby" <drkirkby at gmail.com>
To: "Roger (K8RI)" <k8ri at rogerhalstead.com>
Cc: "amps" <amps at contesting.com>
Sent: Monday, November 11, 2013 5:46 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..


> On 11 November 2013 08:04, Roger (K8RI) <k8ri at rogerhalstead.com> wrote:
>> On 11/11/2013 2:03 AM, Charles Harpole wrote:
>>>


> I suspect part of the problem is that they are often not assembled
> properly. Often the male or female are too far forward or too far
> back, which gives a less than optimal electrical contacts, and I
> suspect thermal contact too.
>
> I've got a Maury Microwave connector gage for BNC, TNC and N types. It
> indicates the depth of the centre pins with a resolution of 0.001".
> These gages measure the depth relative to a master block, which has
> the correct depth as defined by the relevant MIL standard. The effect
> of a small gap between the male and female does not have a significant
> effect on the return loss below a GHz or so, but I suspect it does
> have a significant impact on the thermal properties.

 The crimp style male N connectors made by Amphenol now have a center pin 
that automatically makes the right length and centers the pin.
.

Hardy N7RT