Generally, 3/4 to 2 RPM is the range. The slower speed is for BIG HEAVY
antennas so you have less torque to deal with. Most commercial rotors are
about 1 RPM. If you are making one with a two speed system then use a 2 to 1
radio of speeds.
How are you going to brake the rotor to a stop and secure it when stopped or
are you using a worm gear arrangement?
Michael Baker K7DD
k7dd@cox.net
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of Kipton Moravec
Sent: Thursday, September 02, 2010 6:32 AM
To: towertalk@contesting.com
Subject: [TowerTalk] Antenna Rotor Speed
I am building an antenna rotor for a HF antenna.
How fast should the antenna rotate?
Looking at the motor/gear they have now it looks like it will rotate at
10 RPM, which means 6 seconds to go end to end. That seems too fast to
me. If I change gear sets I can go to a 4 RPM which is 15 seconds to go
to one end to the other. That still seems a little fast. On the other
hand if it goes too slow people will not like it.
For you folks that like contesting, what speed is reasonable?
Or maybe I should ask what is the slowest speed you would not complain
about? :)
Kip
--
Kipton Moravec AE5IB .- . ..... .. -...
"Always do right; this will gratify some people and astonish the rest."
--Mark Twain
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