[TowerTalk] Tri-Ex WT-51 Electric Winch with Pulldown Mechanism and RMC-1000

[Tom Anderson]

Bill:

I've had a TriEx W(T)51 since 1992 and the
instructions I received with it from TriEx did not
advise using an electric winch with it because
supposedly the positive pulldown protection couldn't
be installed.

Tom, WW5L


--- Bill Kerns <bill at billkerns.com> wrote:

> I recently purchased a used Tri-Ex WT-51 tower with
> manual winch.
> 
>  
> 
> I want to install an electric winch on the tower to
> allow me to raise and
> lower it.
> 
>  
> 
> Since the tower will be located remotely from the
> house (about 200-300
> feet), I'd also like to figure out a way to raise
> and lower it remotely.
> 
>  
> 
> I have also found a used RMC-1000 remote controller
> and am considering using
> it in conjunction with an electric winch.
> 
>  
> 
> However, I have heard that there is a pulldown
> safety issue involved with
> this tower.  So I need to have a way to pull down
> the top antenna tower
> sections, as the tower is being lowered, to ensure
> that it does not get hung
> up on the way down.  My understanding is that the
> WT-51 top sections may
> sometimes bind on the way down, so having this
> second cable pulldown
> mechanism will prevent that.
> 
>  
> 
> I am considering a single winch with 2 cables wound
> in opposite directions,
> so that as one cable winds up, the other cable
> unwinds.  Then I need to add
> some pulleys to route the second cable through the
> middle of tower up to the
> top section, so that when the tower is lowered, this
> cable will pull down
> the top section as the other cable releases. 
> However, someone said that
> this might be problematic, since the 2 different
> cables may not wind/unwind
> at the same rate, so I also will need a spring
> mechanism to take up the
> slack as the cable winds/unwinds.
> 
>  
> 
> I would appreciate whatever advice anyone could
> provide to help with this
> installation- such as recommended electric winch
> model part numbers,
> suggested ideas for using RMC-1000 or similar remote
> system, pulley layout,
> etc.  I also wonder what the maximum distance is
> that the RMC-1000 will
> operate remotely, since there will be 200-300 foot
> separation between the
> house and antenna tower.
> 
>  
> 
> I am also looking for a softcopy of the RMC-1000
> schematic and manual, if
> anyone has one.
> 
>  
> 
> -Thanks,
> 
> Bill, N6DAG
> 
>  
> 
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> 
> 
> 
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