[TowerTalk] Tex Com LMR-600 Connectors
K8RI
K8RI-on-TowerTalk at tm.net
Thu Aug 8 19:21:59 EDT 2013
On 8/8/2013 5:44 PM, TexasRF at aol.com wrote:
> Roger, I know you know this but will mention adding a two or three inch
> piece of heat shrink (like the Times connectors) will add a lot of strength to
> the cable/connector interface.
>
> As far as water getting through the threaded part, one should never use any
> connector outside without water protection. It is not optional if you want
> long connector life.
Agreed. I use the 3M flooded Heat Shrink on all connectors.
I'm not concerned with what the connectors look like after the water
proofing is removed as it is only cosmetic. As far as the hot melt glue
from the Heat Shrink, it's just more of what new heat shrink applies.
I've asked why people care, but have never received an answer other than
appearance.
73
Roger (K8RI)
>
> The 3M linerless rubber tape works very well and is available at Home Depot
> or Lowes most anywhere. We carry Diamond and Times Microwave versions of
> the rubber tape; they also work well but not any better than the 3M product.
>
> Thanks for your recent order!
>
> 73,
> Gerald K5GW
> CEO Texas Towers
>
>
>
> In a message dated 8/8/2013 1:46:55 P.M. Pacific Daylight Time,
> K8RI-on-TowerTalk at tm.net writes:
>
> 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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