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Reviews Categories | Antenna Rotators & Accessories | ProSisTel Rotators Help

Reviews Summary for ProSisTel Rotators
ProSisTel Rotators Reviews: 38 Average rating: 4.4/5 MSRP: $Varies
Description: Sold in the USA by -- Vine Antennas ( are the UK / Ireland authorised retailer for these rotators
Product is in production.
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EA3GOA Rating: 1/5 Nov 14, 2016 06:19 Send this review to a friend
PST61D  Time owned: more than 12 months
I have 2 PST61D and have the same probem with 2. The problem is the issue of the rotor shaft having a wearing part and soon means 10/20 ° on the mast of the antenna, and the movement and wind, have this movement of the rotor, the antenna mast wears a problem of fall of the radiant system. . . . . 1 rotor sent it to the manufacturer (Monopoli IT) and was not fixed and the 2nd I have sent the representative of Spain PROSISTEL and I say they have to buy a tool to fix it.
It is inconceblible, poor customer service by a simple repair by the manufacturer, and ditribuidor in EA (Spain) has bought a tool to solve the problem,
N5WNG Rating: 4/5 Jul 13, 2016 09:31 Send this review to a friend
PST 61  Time owned: more than 12 months
I had the older AC model since 2003. In June 2016 it started acting erratic and then the potentiometer failed. Other than the pot going never gave me any problems. Replaced it with a new DC motor version.
ON5MF Rating: 2/5 Jan 3, 2014 04:39 Send this review to a friend
Destructive  Time owned: more than 12 months
My Big Boy has been in service for about 5 years. This morning it decided NOT to stop any more. Result: coax cables broken... and of course no contest this weekend and the next few weeks.
Is it to much to expect some kind of safety to avoid this from happening?
GM6TVR Rating: 5/5 Jun 15, 2013 11:51 Send this review to a friend
Looking good...  Time owned: 0 to 3 months
Recently upgraded from the 61 to the PST71 as I am about to put up a larger beam. The 61 casing has a rubber "O" ring on the end of the motor unit which is supposed to stop water gaining access to the motor housing, as well as having two tiny seals on the fixing screws. I found that all of these seals had hardened and allowed the ingress of rainwater and the inside of the housing was a mass of rust, fortunately, the upgrade was done just in time to save the motor from possible damage. If I had one of these units and it has been installed on the mast for a year or more, I would make every effort to check it out. The PST71 does not have that feature, the end is permanently sealed and it would appear that it is 100% water tight and should remain that way. I like it, although climbing up a 32' ladder with the rotator on my shoulder was no fun, I am approaching 66 years of age and my xyl was not best pleased with my balancing act. I have controlled my PST61's and my new PST71 using the PST Rotator programme which I can't fault, also reviewed on eHam by a number of operators. 73 John
KJ6RA Rating: 5/5 Apr 1, 2012 17:38 Send this review to a friend
PST71 Great rotator  Time owned: more than 12 months
I have had mine for over a year now, I bought it used and it is the older AC motor. It is very reliable and holds my arrays confidently in high winds. I have the "C" controller box, the one down side to that is it only ACCEPTS RS-232 commands but give now feedback as to where it is presently pointing. All the more reason to put a RT-21 on it.
This is just a great rotator that should last a long time and can carry the load with ease.
N9LB Rating: 5/5 Dec 5, 2011 14:27 Send this review to a friend
Built Like A Truck Transmission  Time owned: more than 12 months
I have three ProSisTel Big Boy rotors running in my antenna farm. Two of the older "Gold Motor" vintage and one new "Blue Motor" series. They are excellent rotors - strong smooth, quiet, built like a truck transmission and have no problems operating here in Wisconsin where the winters are harsh - lots of wind and ice.

BTW… The ProSisTel rotors have a worm-drive gear arrangement and are much heavier than the HyGain and Yaesu rotors that I have used in the past!

I am using aftermarket controllers - Green Heron Engineering RT-21. I recommend you look at this option to accompany the Prosistel Big Boy rotor. I consider the RT-21 a “Must Have”.

Note: there is an option, when using the Green Heron controller, to replace the 10K 10-turn position reporting pot (that is supplied by Prosistel) with a 500 ohm 3-turn pot supplied by you. This will improve the pointing display accuracy and repeatability - a consideration when running VHF/UHF stacked arrays.

BTW ... Array Solutions sells and services both items in North America.


Lloyd - N9LB
W3DIY Rating: 5/5 Dec 2, 2010 15:23 Send this review to a friend
A Heavy Weight  Time owned: 0 to 3 months
I was asked to dismantle a 100' 25 G. The Big Boy rotor at the top was turning a 2M beam with a 18' boom.
Because of high winds I wanted to get this done quickly. Getting the beam on the ground went smoothly so I decided to leave the motor in place and lower it with the tower. Oh was that a mistake. My Yaseu 2800 SDX is a flyweight, compared to this Big Boy.
While transporting the control box one of the direction switches was damaged.A replacement was sent from Italy quickly and without charge.
Great product and service to compliment it.
9K2UU Rating: 5/5 Oct 19, 2010 11:12 Send this review to a friend
1st class customer service  Time owned: more than 12 months
I have a Big Boy PST61D rotor by PRO.SIS.TEL and I just want to share with you my experience with this company. I purchased this rotor in 2008 directly from the company in Italy but have not used it before the summer of 2010 when I finally put up my new free standing Universal tower and the OptiBeam yagi antenna 13-6. My decision to acquire this rotor came after comprehensive search in the market and comparing its specifications to other brands where the Big Boy topped them easily. The blue rotor worked smoothly for sometime rotating my monster antenna (120 KG with the mast and other antennas on top) before it stopped rotating for an unknown reason. I called Gianny from PROSISTEL and he was a big help in guiding me via many emails and Skype troubleshoot this problem. The rotor worked again for a while and then developed a similar problem. I contacted Gianny again and he a apologized for this inconvenience and offered me without hesitation a new replacement rotor and he even shipped it for free to me in Kuwait. The new rotor is now performing very well under the sizzling heat and dusty weather of Kuwait. l would like to seize this moment to express my thanks and deep appreciation to Gianny and PRO.SIS.TEL for this excellent customer service, which I consider first class. I give PRO.SIS.TEL big 5 for making me a happy customer by replacing my rotor even after the expiry of the 2-year warranty and for the elite customer support.

Barrak Alkhubaizi , 9K2UU
DJ4KW Rating: 3/5 Dec 9, 2009 06:45 Send this review to a friend
Robust Rotor, Control Box Problems  Time owned: 3 to 6 months
Got a PST 2051 D rotator from the German distributer Appello 5 months ago. It replaced a HAM-M hygain rotator because I wanted remote control by computer. The rotator looks robust and elegant, well built. It works very quiet compared to the grinding noise of the HAM-M and there is no brake that makes a banging noise when operated. After three months the control box showed wrong beam-directions; this occured after I had unplugged it for lightening protection in my absence. Appello pointed out that because rotator and control box are paired and adjusted to each other, they could not exchange the control box as I requested, but I would have to turn in box and rotator, then they could realign it. Alternatively, if I did not want to climb or tilt my mast, I could readjust two potentiometers in the control box. This normally would void the warranty, but I got instructions and an OK to do so. These instructions are not understandable unless you know the theory of operation, but with me and another experienced PST2051D-owner it was only a light turn on one of the potentiometers and all was OK again. For me the control box with the large transformer inside looks much too big. Having no switching power supply and using position potentiometers instead of digitally counting revolutions looks old fashioned; but the big advantage is that there is no ditital hash in radio reception. 73 DJ4KW (also AC6YM V31YN)
SM4OTI Rating: 5/5 Jun 10, 2009 23:32 Send this review to a friend
PST71  Time owned: 3 to 6 months
Just upgraded from PST61 to PST71. The mechanical design of the PST71 compared to the PST61 is more robust and the slack in the worm wheel in the PST71 is much better (less) than in the PST61.

The reason for the upgrade was that in heavy winds (>15 m/s) during 5 hours or more the PST61 was not able to keep the antennas in the direction it had when last stopped because of the momentum in combination with vibrations caused by the large antennas and high winds.

I hope that the manufacturer will update the firmware in the controller box (D-version), so some of the problems I previously described in another review will be addressed as they still exist.

Another thing on the wish-to-have-list is an electronic stop-switch/breaker when the rotator reaches the end destination after a full turn CW or CCW. Just as a safety feature if something goes wrong with the output in the controller-box.

If you can, I strongly suggest to go for the PST71 if you can. It's a great rotator and it can handle big antennas.
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