I re-use connectors if they are placed where I can get to them easily.
I would never ever re-use a connector on top of a tower or other high
place I can't get to easily. I hate going up to fix antennas. (Can you
tell I have done this once or more .... )
James
Eric Lemmon wrote:
>Skipp,
>
>Verrry interesting! By curious coincidence, the installation
>instructions for the new Andrew Heliax connectors states that the
>connector must first be tightened and then removed to inspect the flare
>before re-tightening. I understand that the advice against re-using
>connectors is probably directed toward re-use of connectors that have
>been in service for some time, but the distinction should be made that
>merely tightening the connector once does not necessarily preclude
>tightening it a second time. (I, too, reuse expensive Heliax
>connectors!)
>
>73, Eric Lemmon WB6FLY
>
>skipp025 wrote:
>
>
>
>>I saw a Sinclair demo at IWCE Las Vegas last
>>month about intermod from new & re-used
>>hardline connectors.
>>
>>Wrong re-use & assembly of a typical hardline
>>connector can be a serious IMD Generator, both
>>new and used. Who would have thought..?
>>
>>The major idea that I can pass along to most of
>>you is: Once you tighten a hardline connector
>>down, you should not reuse the same hardline end
>>position again. Cut off even the once used end
>>section & start with a new un-used end.
>>
>>"Cut off the portion of the hardline which had the
>>connector removed and place any new/used connectors
>>on virgin hardline end-sections." It might be
>>expensive or not practical, but it could save your
>>bacon on a busy mountain top. PIM is a real
>>Bxxxh (ryhmes with itch) to find and fix.
>>
>>The fly in the soup is the first-use grooves &
>>scratches created in the hardline metal, which
>>become serious PIM (Intermod) generators within
>>the actual connector (both new and used).
>>
>>Some of you re-using old hardline might be shooting
>>yourself in the foot right from the starting gate.
>>Again, if you assemble a new or used hardline run,
>>try to use new virgin cable ends only once.
>>
>>The real trouble is mostly sourced around the
>>center pin connection in relation to the hardline
>>in 7/8, 1-1/4, 1-5/8 and similar runs. But examples
>>of 3/8, 1/2 and smaller PIM generators were given.
>>
>>One thing about the Sinclair RF Engineers, they
>>really know their stuff well. Expensive but well
>>worth their prices. If you visit the Sinclair web
>>pages, notice they do specialize in antenna versions
>>for problematic PIM sites.
>>
>> ****
>>
>>Not related to Sinclairs information, I will say that
>>I do reuse some expensive connectors and hardline
>>ends after inspection and cleaning.
>>Said cleaning is with a brass or stainless brush. Stay
>>away from steel cleaning brushes.
>>
>>That's about it... still trying to get that great
>>Dayton hotdog tent smell out of my head.
>>
>>chow for now
>>skipp
>>
>>skipp025 @yahoo.com
>>www.radiowrench.com
>>
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
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