[TowerTalk] Tex Com LMR-600 Connectors

[K8RI]

On 8/4/2013 4:28 PM, rfman45 wrote:
>
> Texas Towers has a compression UHF connector for LMR 600, the CC600UM. I'd like to know
> if anyone has used this connector, its ease of use, etc.

I received some today. These appear to be the same or very much like the 
ones I've been using, available from Davis as well.

They are a very simple "clamp type" of connector with a solder type 
brass center pin that appears to be gold plated.   The center pin is not 
captive so you need to measure and cut carefully. The clamp (similar to 
an "N-type) gives a good weather seal to the jacket, but they are still 
UHF with little resistance to water ingress at the threaded connection.

They are Nickle plated which stands up better in the weather here, but 
when properly weather proofed none of the connector is exposed anyway. 
Not my choice  for above HF, but have worked well on HF.

As I use them (UHF) on 160 and 75 QRO where the SWR can get quite high I 
ream the center bulkhead out a bit with an end mill to increase the 
clearance.  It probably does little, but I've shorted a number of N 
type. Whether due to lightening or power, I'm not sure.

At any rate it's nice to see some UHF connectors available for LMR-600. 
For a while only type N were available.
The only fault I find with these is they do not handle sideways pressure 
well and tend to have the threaded collar break off.  IOW Make sure to 
come straight off the connector, or at least have no side pressure.

73

Roger (K8RI)

>
> Thanks in advance for any comments.
>
>                                                          Mike  W2LO
>   		 	   		
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