[Elecraft] OT: Pin migration in Type N connectors

[dave]

Curious, how does one identify a 'captive' center pin from a 
'non-captive' one?

I typically use the crimp-on type N's from RF Industries and wonder 
which category those fall into. For those who are not familiar with 
these connectors, the pins crimp onto the center conductor and then snap 
into the shell.


73 de dave
ab9ca/4




Milt, N5IA wrote:
> I have been using the Times series of crimp-on "N" male connectors with the 
> captive center pin for the past 10+ years.  In particular, IMHO, the Times 
> EZ-400-NMH for use on LMR-400 has been a boon to the communications 
> industry.
>
> My group has installed thousands of them for use at 2.4 GHz and 5.8 GHz.  No 
> failures unless a tech made an install mistake with one of them.
>
> As Ken has indicated, they are highly recommended because of the potential 
> pin migration problem AND for proper pin placement.
>
> Good luck to all.  Have a great weekend.
>
> 73 de Milt, N5IA
>
> ----- Original Message ----- 
> From: "Ken Kopp" <k0pp at rfwave.net>
> To: <elecraft at mailman.qth.net>
> Sent: Friday, July 23, 2010 8:42 AM
> Subject: [Elecraft] OT: Pin migration in Type N connectors
>
>
>   
>> I use UG-1185's for almost all of my N males here.
>> They have a captive center pin.
>>
>> Otherwise, center pin migration -can- be a problem
>> here in Montana with it's temperature extremes. (;-)
>>
>> 73! Ken Kopp - K0PP
>>       ElecraftCovers at rfwave.net
>>
>>
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