Re: [TowerTalk] Tashjain Towers LM470 Remote tower raising control

[Steve Dyer via TowerTalk <towertalk@contesting.com>]

I am with you 100% John. Don't do it. Too many things can go wrong with 
really bad consequences.
After a good friend (call sign withheld to protect the guilty) tore off 
two runs of LMR-600 and bent up a 3 el 40m full size, the remote was 
removed from his UST crank up. Trees grow. Beam heading indicators go 
bad. The list of potential cascade failures is not solved by a camera.
There is a reason Tashjian does not sell one and it's not just about 
liability.
73,
Steve
W1SRD

On 7/17/2022 11:51, John Langdon wrote:
> I was advised years ago by one of my trusted "Elmers" who had lots of 
> experience with radio gear in the Navy that it is better to cut a window in your radio 
> room than take a risk of an unexpected or uncontrolled motion of a tower.  I was also 
> advised when I was in the wind turbine business (very briefly) that the most dangerous 
> thing in the modern world is an electrical engineer controlling a high power mechanical 
> system!
>
> 73 John N5CQ
>
>
> -----Original Message-----
> From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Lux, Jim
> Sent: Sunday, July 17, 2022 1:44 PM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Tashjain Towers LM470 Remote tower raising control
>
> On 7/17/22 11:19 AM, Bill Eisinger wrote:
> > It shouldn’t be too hard to adapt it such that you could use a smart switch 
> > with an Alexa (or equivalent) hub...however you would need wifi or bluetooth access at 
> > the tower...
> Or, some form of low voltage relays and a hardwire connection.
>
> Or a WiFi connected relay controlled by a dedicated app, but I'd be a bit nervous about 
> trusting a "safety sensitive" function to Alexa, without some serious 
> interlocks or a fairly robust physical access control.   It's kind of like those ideas 
> about automatically lowering the tower when the wind goes above a certain speed.  It's 
> more complex than one thinks at first.
>
> I've built a fair number of network controlled devices, some controlling big heavy things 
> moving around (dish antennas, etc.) - It takes careful planning and design to make sure 
> it "fails safe".   For this, since you've already got to have power wires and 
> coax going out there, adding a few wires to control some relays seems a fairly simple and 
> robust way.
>
>
>
>
>
> > -----Original Message-----
> > From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Ted
> > Pauck K8NA
> > Sent: Sunday, July 17, 2022 11:43 AM
> > To: TowerTalk@contesting.com
> > Subject: [TowerTalk] Tashjain Towers LM470 Remote tower raising
> > control
> >
> > I recently purchased the Tashjain Towers LM470 Crank up tower. The tower comes 
> > with an electric motor control onboard for raising and lowering the tower, by a 
> > switch at the tower. I need to remote control the tower from in my radio room. 
> > There will be a camera to watch the tower raising and lowering. Tashjain does 
> > not sell a remote control for towers. Has anyone been able to remote control 
> > the LM470 or any of the other Tashjain towers?
> >
> > TU/73  ...   de  Ted  K8NA
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