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Subject:
From:
Kelvin Marsh <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Sun, 21 Jul 2013 09:17:27 +0100
Content-Type:
text/plain
Parts/Attachments:
text/plain (136 lines)
Hi Lowell,

If you like to use just PC control, I'm about to publish a review of the
ProSisTel rotator controller.  I use this myself.  The smallest PST rotor I
can find is the PST 641D and it is roughly similar in spec to the Yaesu
G800.  Using the Vine Communication comparison table:

Rotation torque inch / lbs 
PST 641D is 516
Yaesu G800 is 950

Braking torque inch / lbs 
PST 641D is 4730
Yaesu G800 is 3450

It describes the PST as having ' Single worm drive motor direct final drive'
and the Yaesu as ' Gear Train only'.

The big PST rotors are truly massive, and looking at the figures, seem to
outperform the others by 2 or 3 times.  Goodness knows if they're used by
amateurs <smile>.  With one of the really big boys, I reckon you could turn
the house <smile>.

I think the PST rotors are marketed as Big Boy Rotors in the states, but I
would guess they probably cost more than the Yaesu's...

Best wishes, Kelvin Marsh - M0AID

Working to improve accessibility for radio amateurs with disabilities

www.active-elements.org

For accessibility evaluations of amateur equipment and MP3 manuals


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Lowell Miller
Sent: 20 July 2013 21:49
To: [log in to unmask]
Subject: Re: Antenna rotator needed

Good Afternoon Alan,
Thank you for replying to by question!
It sounds like the 800 would be enough for the hex beam I am thinking of 
putting up here.
I have so little room for antennas that will be about all I can do.
I am presently using an all band vertical and I would like to have something

that will give me some directivity.
Yes, it sounds like that control box will work fine for me being blind as it

does for you.
Thanks very much, Alan.
Best 73.
Lowell  W8Qiy
----- Original Message ----- 
From: "Alan R. Downing" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, July 20, 2013 2:46 PM
Subject: Re: Antenna rotator needed


> The Yaesu rotors are good, particularly the G1000 and G2800.  I turned my 
> 4
> element SteppIr with a G1000 for 5 years without problems, and when I
> replaced the 4 element SteppIr with the much larger DB36, I bought the
> largest of Yaesu's line, the G2800.  I just took the front cover off and I
> touch the needle to find out where the rotor is pointing, and I have never
> moved the needle inadvertently.  The G1000 and G2800 both have a button 
> that
> can be pressed to turn the rotor from where ever it is to a preset
> direction.  the rotor will automatically go to where you had set it up to
> go.  There is a knob that you can adjust the stop point to, so when the
> button is pressed, the rotor goes to that set point.  I set mine to stop 
> at
> due North.  So, no matter where I am pointing, the rotor always returns to
> North.  I don't know if the G800 has this feature or not, but just call 
> HRO,
> and they could tell you.
> If you intend to only put up a small yagi, the G800 may well be adequate,
> but if you are putting up a large yagi with many square feet of wind load,
> then opt for the G1000, or if the yagi will be huge, better go for the
> G2800.
> Yaesu rotors are not cheap.  I don't remember what the G800 costs, but I
> think I paid about $800 for the G1000, and over $1500 for the G2800.
> HTH/73
>
>
> Alan R. Downing
> Phoenix, AZ
>
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Lowell Miller
> Sent: Saturday, July 20, 2013 11:02 AM
> To: [log in to unmask]
> Subject: Re: Antenna rotator needed
>
> Thanks, Mike, for the info concerning your rotator.
> This kind of info helps me make the right kind of decision.  Do you know
> about how much this rotator costs?
> That is a factor also.
> Best 73.
> Lowell  W8QIY
> ----- Original Message ----- 
> From: "Mike Barnard" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, July 20, 2013 12:38 PM
> Subject: Re: Antenna rotator needed
>
>
>>I have a yasu rotater, I got from D X Enginering for my hex beam.  It
>> says that the raiting is about 5 which is good, it can be used on a
>> try pod on the roof.  I think the number on the roter was an 800.  I
>> will have someone look on the invoice.  The glass turns a quarter of
>> a turn and then comes off.  There is a hand that moves, it is not
>> sensitive as braille clocks and watches.  Also, if you turn it south
>> counter clockwise, when you turn it clockwise to the south, you can
>> go 90 degrees more or directly west.  I have never seen that on a
>> roter before.
>> I gues I am getting old, the wind load is 5, that was what I meant,
>> and it is rated at 100 MPH.
>> Mike Barnard
>> KD2CDU
>>
> 



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