Maybe OT but is there a reflector on the Alpha 9500 HF Linear Amplifier.
Mine does not key from my FT 1000MP anymore. The trouble started recently.
Much Thanks
Al
W4ABW
Huntsville, AL
#1 DXCC HR
-----Original Message-----
From: towertalk-request <towertalk-request@contesting.com>
To: towertalk <towertalk@contesting.com>
Sent: Fri, Jul 22, 2016 11:09 am
Subject: TowerTalk Digest, Vol 163, Issue 93
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Today's Topics:
1. Re: Biggest rotor that will fit in a Rohn 25G (Danny Pease)
2. (no subject) (Bill Tippett)
3. Re: Biggest rotor that will fit in a Rohn 25G (Bill Tippett)
----------------------------------------------------------------------
Message: 1
Date: Thu, 21 Jul 2016 11:49:27 -0500
From: "Danny Pease" <dpease@adams.net>
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Biggest rotor that will fit in a Rohn 25G
Message-ID: <014901d1e36f$d84dd6f0$88e984d0$@adams.net>
Content-Type: text/plain; charset="us-ascii"
John, N9JF used a 6 foot long piece of 6 X 6 X 1/2 inch galvanized angle
iron fastened across the tower about 4 feet down from the top. He uses 4
guys wires, two on each end of the angle iron. This is not quite as
effective as a star guying system, but an improvement over the usual Rohn
torque arms.
Danny NG9R
Message: 2
Date: Thu, 21 Jul 2016 11:50:32 -0400
From: "john@kk9a.com" <john@kk9a.com>
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Biggest rotor that will fit in a Rohn 25G
Message-ID: <2438b61f57f5752fc4cd4a275ffd4032.squirrel@www11.qth.com>
Content-Type: text/plain;charset=iso-8859-1
Does N9JF use a 6 guy cable torque stabilizer or just three torque arms
attached to the tower. The latter does little to prevent twisting. A Green
Heron controller sounds like it would be a nice addition to the AlfaSpid.
John KK9A
------------------------------
Message: 2
Date: Thu, 21 Jul 2016 13:31:40 -0400
From: Bill Tippett <btippett@alum.mit.edu>
To: towertalk@contesting.com
Subject: [TowerTalk] (no subject)
Message-ID:
<CAOH7AOpuSDw1sCYqjFACLhceStHY-BXNvvRENexHbPVRumQj1A@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
NG9R wrote:
> The biggest drawback I saw was the rotor control box does not allow the
rotor to ramp up or ramp down and when it starts turning, it does put a good
bit of twist to the tower, even with anti-torque arms. Same applies to
stopping,
when it stops, there is no slowing down, it simply stops turning. A
different rotor controller would be needed to allow a softer start and stop.
My intelligent controller (a.k.a. yours truly) simply taps the CW and CCW
paddles when starting and stopping. Worked for the 1500HD (42' boom KLM 5L
20 & 3L 40) and CDE Ham-X series (34' boom KT-34XA).
73, Bill W4ZV
------------------------------
Message: 3
Date: Thu, 21 Jul 2016 14:42:38 -0400
From: Bill Tippett <btippett@alum.mit.edu>
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Biggest rotor that will fit in a Rohn 25G
Message-ID:
<CAOH7AOr7MRV+_OvkoBFhBGQBb19zuDrhfmFdutHZHxF4RuTMCA@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
NG9R wrote:
> The biggest drawback I saw was the rotor control box does not allow the
rotor to ramp up or ramp down and when it starts turning, it does put a good
bit of twist to the tower, even with anti-torque arms. Same applies to
stopping,
when it stops, there is no slowing down, it simply stops turning. A
different rotor controller would be needed to allow a softer start and stop.
My intelligent controller (a.k.a. yours truly) simply taps the CW and CCW
paddles when starting and stopping. Worked for the 1500HD (42' boom KLM 5L
20 & 3L 40) and CDE Ham-X series (34' boom KT-34XA).
73, Bill W4ZV
------------------------------
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End of TowerTalk Digest, Vol 163, Issue 93
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