I have the Prosistel PST61, one of the first ones, up now for I think about
4 years at least. Bought it from Jay at Dayton. It is turning a F12 Mag340N
three EL 40, a F12 C31XR and a F12 68' 180 dipole..using a 172# 3/8 wall
chrome molly 24' mast. Mounted 8' down in Rohn 55 on a custom metalworks
heavy rotor plate. It has worked flawlessly...knock on wood. Has the digital
box, slows to stop etc. Works well. I assume since it is one of the first
ones that it now corresponds to the higher spec rated HD model. If I had it
to do again I would choose it hands down.
Tommy WD4K
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of
towertalk-request@contesting.com
Sent: Wednesday, November 22, 2006 9:58 AM
To: towertalk@contesting.com
Subject: TowerTalk Digest, Vol 47, Issue 71
Send TowerTalk mailing list submissions to
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of TowerTalk digest..."
Today's Topics:
1. Re: Orion OR2800P (Pete Smith)
2. Re: 6-8 pin connectors (Pete Smith)
3. BIG array (K7LXC@aol.com)
4. Re: Yaesu FT2000? (K7LXC@aol.com)
5. Re: BIG array (Tim Duffy K3LR)
6. Re: BIG array (Dan Zimmerman N3OX)
7. Re: Orion OR2800P (Jan Erik Holm)
8. Re: BIG array (Bill Turner)
9. Berk-Tec 6308 cable (N2TK, Tony)
10. Re: BIG array (Rick Scott)
----------------------------------------------------------------------
Message: 1
Date: Wed, 22 Nov 2006 07:15:48 -0500
From: Pete Smith <n4zr@contesting.com>
Subject: Re: [TowerTalk] Orion OR2800P
To: "Keith Dutson" <kdutson@sbcglobal.net>, <TOWERTALK@contesting.com>
Message-ID: <6.2.0.14.2.20061122070547.0746e868@mail.adelphia.net>
Content-Type: text/plain; charset="us-ascii"
I would also at least look at K7NV's converted prop pitches. I don't know
how the prices compare, but I saw the rotators at Dayton this year. They
were very impressive, and Kurt is a good guy who will give you excellent
support.
http://www.k7nv.com/proppitch/index.htm
73, Pete
At 08:13 PM 11/21/2006, Keith Dutson wrote:
>You are the 5th to recommend the Big Boy. Guess I need to give Jay a call.
>
>73, Keith NM5G
>
>-----Original Message-----
>From: towertalk-bounces@contesting.com
>[mailto:towertalk-bounces@contesting.com] On Behalf Of Chuck O'Neal
>Sent: Tuesday, November 21, 2006 6:42 PM
>To: Bob Maser; K8RI on TowerTalk; TOWERTALK@contesting.com
>Subject: Re: [TowerTalk] Orion OR2800P
>
>Go to this site:
>
>http://www.prosistel.net/home-e/default.html
>
>and on the left there is a rotator comparison link. While this is the
>Prosistel site, the table shows the Orion 2800 along with a bevy of other
>rotators and their specs. For a big antenna, I'd go with the Prosistel
>PST-71 or a prop pitch.
>
>Chuck...K1KW
>
>
>
>----- Original Message -----
>From: "Bob Maser" <bmaser@tampabay.rr.com>
>To: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>;
><TOWERTALK@contesting.com>
>Sent: Tuesday, November 21, 2006 7:15 PM
>Subject: Re: [TowerTalk] Orion OR2800P
>
>
>> Check out this M2 website:
>>
>> http://www.m2inc.com/products/rotors/or28002.html
>>
>> Bob W6TR
>> ----- Original Message -----
>> From: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
>> To: <TOWERTALK@contesting.com>
>> Sent: Tuesday, November 21, 2006 7:02 PM
>> Subject: [TowerTalk] Orion OR2800P
>>
>>
>> >I have spent the last hour searching for information on the Orion
OR2800P
>> > rotator. All I found were opinions such as "I like it", "built like a
>> > tank", etc...but absolutely no information on how it's constructed, or
>the
>> > actual mechanics of the thing. I did find one photo of the assembled
>unit
>> > which doesn't even show scale.
>> >
>> > Would some one please describe the insides for me? What do they use
for
>> > load supporting bearings, what kind of gears, are they spur or worm
>gear.
>> > If
>> > worm gear is a single or double reduction. What do they use for a brake
>if
>> > not a dual worm gear?
>> >
>> > If you need parts how long to get them? What kind of service and turn
>> > around
>> > time. Are there any parts that are a long delivery item?
>> >
>> > Are parts readily available for the controllers.
>> >
>> > For me it's not just how well an item works but how well it's supported
>> > and
>> > whether parts are standard and readily obtainable. Standard, readily
>> > obtainable parts is second only to "is the rotator adequate to do the
>job
>> > with a substantial safety margin".
>> >
>> > For large arrays like my system (there are *much* larger systems out
>> > there)
>> > I want the speed to either step up and down or smoothly increase and
>> > decrease at the beginning and end of any movement.
>> >
>> > Roger Halstead (K8RI and ARRL 40 year Life Member)
>> > N833R - World's oldest Debonair CD-2
>> > www.rogerhalstead.com (Use return address from home page)
>> >
>> > _______________________________________________
>> >
>> >
>> >
>> > _______________________________________________
>> > TowerTalk mailing list
>> > TowerTalk@contesting.com
>> > http://lists.contesting.com/mailman/listinfo/towertalk
>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
>
>_______________________________________________
>
>
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk@contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk
>
>_______________________________________________
>
>
>
>_______________________________________________
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------------------------------
Message: 2
Date: Wed, 22 Nov 2006 07:27:43 -0500
From: Pete Smith <n4zr@contesting.com>
Subject: Re: [TowerTalk] 6-8 pin connectors
To: towertalk@contesting.com
Message-ID: <6.2.0.14.2.20061122071920.0212b298@mail.adelphia.net>
Content-Type: text/plain; charset="us-ascii"
It really is fairly amazing what current can be handled by a relatively
small pin, as compared to the huge Cinch-Jones things. I use ordinary DIN
plugs for some of my control cable disconnects. The contacts are rated for
1 amp at 100 volts, or thereabouts. My C-J plugs require fairly constant
attention with CAIG anti-oxidation stuff, or they get flakey in places like
rotator pot connections - low voltage low current.
73, Pete N4ZR
At 08:17 PM 11/21/2006, NY1E wrote:
>I used a pair of DB-9 computer connectors, They've
>been on the tower for 5 or 6 years now.
>Dick NY1E
>www.ny1e.com
>
>>Does anyone have any suggested sources for
>Cinch-Jones (or whatever)
>plug
>>and socket sets for rotor control or whatever? I'm
>thinking 6 or 8
>pins.
>>Part numbers would be helpful. I looked at Mouser
>but am not sure of
>>manufacturer/part. Thanks.
>
>
>
>
>
>___________________________________________________________________________
_________
>Sponsored Link
>
>$200,000 mortgage for $660/ mo
>30/15 yr fixed, reduce debt
>http://yahoo.ratemarketplace.com
>_______________________________________________
>
>
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk@contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk
------------------------------
Message: 3
Date: Wed, 22 Nov 2006 08:30:51 EST
From: K7LXC@aol.com
Subject: [TowerTalk] BIG array
To: towertalk@contesting.com
Message-ID: <c9a.3b7e2e1.3295ab0b@aol.com>
Content-Type: text/plain; charset="US-ASCII"
Howdy --
I don't know if it's been mentioned before but I was at the SteppIR
factory yesterday and saw an engineering drawing and photos of the K9LTN
array.
It's a 270' rotating tower with an "H" frame on it with 4 over 4 over 3
element SteppIRs on EACH side of the H. The antennas have azimuth AND
elevation
rotation. I heard that he was able to bounce HF signals off the moon ala
W0UN.
It is a truly amazing installation. Apparently they used Rohn 55 and 45 for
the vertical parts of the H. The vertical parts of the H are 100 feet! It
has
over 21 dBi of freespace gain.
I went to the website - _www.k9ltn.com/_ (http://www.k9ltn.com/) - to
look at the photos and they're poorly edited and don't show any finished
shots
that I could see.
I think that this is probably the most expensive single tower
installation in the country. Everything except the antennas was custom
designed and
built and professionally installed. I'd estimate that its cost was over
$100k.
If anyone has pictures of the finished array, please let us know where
they can be viewed.
You've got to admire someone with that kind of vision.
Cheers,
Steve K7LXC
TOWER TECH
------------------------------
Message: 4
Date: Wed, 22 Nov 2006 08:33:05 EST
From: K7LXC@aol.com
Subject: Re: [TowerTalk] Yaesu FT2000?
To: towertalk@contesting.com, dxdx@optonline.net
Message-ID: <ca5.2837ea4.3295ab91@aol.com>
Content-Type: text/plain; charset="US-ASCII"
In a message dated 11/21/2006 2:44:44 P.M. Pacific Standard Time,
towertalk-request@contesting.com writes:
> Has anyone had the chance to checkout the receiver on the new FT2000?
The
W8JI close-space receiver tests would seem to indicate good performance.
Oops - wrong reflector. There are Yaesu reflectors out there that are more
appropriate for this discussion.
OTOH thoughtful posts about tower and HF antenna installations are
always welcome.
Cheers,
Steve K7LXC
TT ADMIN
------------------------------
Message: 5
Date: Wed, 22 Nov 2006 07:49:19 -0600
From: Tim Duffy K3LR <k3lr@k3lr.com>
Subject: Re: [TowerTalk] BIG array
To: K7LXC@aol.com
Cc: towertalk@contesting.com
Message-ID: <4564555F.3F195324@k3lr.com>
Content-Type: text/plain; charset=us-ascii
This was presented earlier this year at the Dayton Hamvention Antenna forum.
You can see all 57 slides about this antenna by going to http://www.k3lr.com
Click on Dayton Antenna Summary 2006
73!
Tim K3LR
K7LXC@aol.com wrote:
> Howdy --
>
> I don't know if it's been mentioned before but I was at the SteppIR
> factory yesterday and saw an engineering drawing and photos of the K9LTN
array.
> It's a 270' rotating tower with an "H" frame on it with 4 over 4 over 3
> element SteppIRs on EACH side of the H. The antennas have azimuth AND
elevation
> rotation. I heard that he was able to bounce HF signals off the moon ala
W0UN.
> It is a truly amazing installation. Apparently they used Rohn 55 and 45
for
> the vertical parts of the H. The vertical parts of the H are 100 feet! It
has
> over 21 dBi of freespace gain.
>
> I went to the website - _www.k9ltn.com/_ (http://www.k9ltn.com/) -
to
> look at the photos and they're poorly edited and don't show any finished
shots
> that I could see.
>
> I think that this is probably the most expensive single tower
> installation in the country. Everything except the antennas was custom
designed and
> built and professionally installed. I'd estimate that its cost was over
$100k.
>
> If anyone has pictures of the finished array, please let us know
where
> they can be viewed.
>
> You've got to admire someone with that kind of vision.
>
> Cheers,
> Steve K7LXC
> TOWER TECH
> _______________________________________________
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
------------------------------
Message: 6
Date: Wed, 22 Nov 2006 08:50:48 -0500
From: "Dan Zimmerman N3OX" <n3ox@n3ox.net>
Subject: Re: [TowerTalk] BIG array
To: towertalk@contesting.com
Message-ID:
<141cfb1e0611220550l787c7725h62f27a7e5033b972@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Wow, that's over the top! Great looking array though...
------------------------------
Message: 7
Date: Wed, 22 Nov 2006 16:32:03 +0100
From: Jan Erik Holm <sm2ekm@telia.com>
Subject: Re: [TowerTalk] Orion OR2800P
Cc: TOWERTALK@contesting.com
Message-ID: <45646D73.1080700@telia.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Check this out:
http://www.arraysolutions.com/Users/cn2r.htm
http://cn2r.net/cn2r/Photo/Yagi%20Construction%2080.htm
http://cn2r.net/cn2r/Photo/Rotating%20Dipole%20Construction%20160.htm
The 80m (a 2 el Force12 Sigma Ultra) and 160m dipole is
rotated by a PST71 since late 2003.
73 Jim SM2EKM
-------------------
Chuck O'Neal wrote:
> Go to this site:
>
> http://www.prosistel.net/home-e/default.html
>
> and on the left there is a rotator comparison link. While this is the
> Prosistel site, the table shows the Orion 2800 along with a bevy of other
> rotators and their specs. For a big antenna, I'd go with the Prosistel
> PST-71 or a prop pitch.
>
> Chuck...K1KW
>
------------------------------
Message: 8
Date: Wed, 22 Nov 2006 07:35:03 -0800
From: Bill Turner <dezrat@copper.net>
Subject: Re: [TowerTalk] BIG array
To: towertalk@contesting.com
Message-ID: <88r8m2hslppeokqqe2ivp2sroitt59bfs8@4ax.com>
Content-Type: text/plain; charset=us-ascii
ORIGINAL MESSAGE:
On Wed, 22 Nov 2006 08:30:51 EST, K7LXC@aol.com wrote:
> I don't know if it's been mentioned before but I was at the SteppIR
>factory yesterday and saw an engineering drawing and photos of the K9LTN
array.
>It's a 270' rotating tower with an "H" frame on it with 4 over 4 over 3
>element SteppIRs on EACH side of the H. The antennas have azimuth AND
elevation
>rotation. I heard that he was able to bounce HF signals off the moon ala
W0UN.
>It is a truly amazing installation. Apparently they used Rohn 55 and 45
for
>the vertical parts of the H. The vertical parts of the H are 100 feet! It
has
>over 21 dBi of freespace gain.
------------ REPLY FOLLOWS ------------
Other than getting into the Guinness Book of World Records, one has to
wonder why anyone would bother with such a project. It's the old story
of the more gain you have, the narrower the beamwidth. This guy is
probably going to miss more DX than he hears.
But it's an interesting story, no doubt about that.
Bill, W6WRT
------------------------------
Message: 9
Date: Wed, 22 Nov 2006 10:54:34 -0500
From: "N2TK, Tony" <tony.kaz@verizon.net>
Subject: [TowerTalk] Berk-Tec 6308 cable
To: "Towertalk (E-mail)" <towertalk@contesting.com>
Message-ID: <002d01c70e4e$8243fc40$6c01a8c0@mattson.com>
Content-Type: text/plain; charset=iso-8859-1
I came across some unused rotor cable in my pile of cable. It is Berk-Tek
6308 rotor cable. I can't find anything about it with a google search.
It has 8 wires - 6 of one size and 2 of another size. Does anyone have any
info on this cable and know what size are these wires?
Tnx
N2TK, Tony
------------------------------
Message: 10
Date: Wed, 22 Nov 2006 07:57:55 -0800
From: Rick Scott <w7psk@w7psk.net>
Subject: Re: [TowerTalk] BIG array
To: towertalk@contesting.com
Message-ID: <0MKp2t-1GmuU10C57-0003uf@mrelay.perfora.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
>------------ REPLY FOLLOWS ------------
>
>Other than getting into the Guinness Book of World Records, one has to
>wonder why anyone would bother with such a project. It's the old story
>of the more gain you have, the narrower the beamwidth. This guy is
>probably going to miss more DX than he hears.
>
>But it's an interesting story, no doubt about that.
>
>Bill, W6WRT
>_______________________________________________
To me its a big waste of money
------------------------------
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End of TowerTalk Digest, Vol 47, Issue 71
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