On 2021-04-05 4:04 PM, ve4xt@mymts.net wrote:
since the transformer that powers the motor circuits is in series
with the brake switch.
The same transformer powers brake and motor.
>> On Apr 5, 2021, at 9:56 AM, john at kk9a.com wrote:
>>
>> You can save a lot of heavy gauge wire by using a rotator without a
>> brake.
Not really. Some of the Yaesu rotators are rated for motor current of
4+A DC (at maximum rotational speed and load). That's close enough to
the 5A AC of the Hy-Gain brake to make no difference in wire size
requirements.
73,
... Joe, W4TV
On 2021-04-05 4:04 PM, ve4xt@mymts.net wrote:
You also don't get power to the motor without engaging the brake switch, since
the transformer that powers the motor circuits is in series with the brake
switch.
73, kelly, ve4xt
----- Original Message -----
From: "Dave Hachadorian" <k6ll.dave@gmail.com>
To: "reflector Towertalk" <towertalk@contesting.com>
Sent: Monday, April 5, 2021 2:26:29 PM
Subject: Re: [TowerTalk] Rotor Cabling Query
And, if you disconnect the brake wire, the brake will never release!
Dave Hachadorian, K6LL
Yuma, AZ
-----Original Message-----
From: john@kk9a.com
Sent: Monday, April 5, 2021 11:20 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Rotor Cabling Query
No, Hy-Gain uses a spur gear drive which offers very little resistance
to turning so they need a wedge to maintain position.
John KK9A
Robert Harmon k6uj wrote:
So will the HyGain Tailtwister hold securely with no creeping if I
disconnect the brake wire ? I have had the typical stuck brake
scenario with my old Tail Twisters in the past and I like the
idea of not using the brake circuit if possible. I always let it coast
to a stop anyway. I have a new TailTwister replacement going up in
a couple of weeks.
Bob
K6UJ
On Apr 5, 2021, at 9:56 AM, john at kk9a.com wrote:
You can save a lot of heavy gauge wire by using a rotator without a
brake. A brake adds controller complexity, it sometimes sticks and
it requires two extra conductors. I believe only Hy-Gain uses
brakes. I have not owned a rotator with a brake in decades and even
my 60 ft boom antennas to not creep in the wind.
John KK9A
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