| Author |
Message |
    
Davec
Junior Member
Username: Davec
Post Number: 26
Registered: 6-2003
| | Posted on Saturday, May 07, 2005 - 6:28 pm: | 
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Installed my tower today with a CDR Ham rotor.When I bench tested it two weeks ago it worked fine.The rotor gets mounted about 3' from the top of the tower.Cable lengh from base to rotor is about 180'. The rotor will not turn an inch. It just makes a buzzing.It's like a car that won't turn over.When I took it off to bench test it again with 3' of cable it worked good like it should.Is the greater distance preventing the rotor from preforming or could it be the control box? |
Road_warrior
Advanced Member
Username: Road_warrior
Post Number: 534
Registered: 7-2004
| | Posted on Saturday, May 07, 2005 - 7:31 pm: |
|
Are you using a Thrust Bearing?
If not, you may have to much weight
on it. Or you got a bad or loose wire in
your long run of rotor wire. I have seen
wires get pinched and cause that also.
Wish you the best of luck!
JIM/ PA/ CEF 375 |
Crackerjack
Intermediate Member
Username: Crackerjack
Post Number: 431
Registered: 7-2004
| | Posted on Saturday, May 07, 2005 - 7:39 pm: |
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Sounds like low voltage at the other end of the cable. |
Kirk
Intermediate Member
Username: Kirk
Post Number: 288
Registered: 6-2002
| | Posted on Saturday, May 07, 2005 - 9:04 pm: |
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Davec what wire are you using for this rotor? |
Road_warrior
Advanced Member
Username: Road_warrior
Post Number: 538
Registered: 7-2004
| | Posted on Saturday, May 07, 2005 - 9:45 pm: |
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I have alot of Rotor wire on mine and
it turns fine.
Buzzing only when you hook up to your
long run of wire. If its working with the
3' piece your control box probably is fine.
Has something to do with the long run of
wire. Hummmm
|
Davec
Junior Member
Username: Davec
Post Number: 27
Registered: 6-2003
| | Posted on Saturday, May 07, 2005 - 10:52 pm: |
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road warrior, the antenna was't mounted to the rotor yet. |
Tech291
Moderator
Username: Tech291
Post Number: 169
Registered: 11-2004
| | Posted on Saturday, May 07, 2005 - 11:04 pm: |
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could also be the capacitor in the controller is drying up.combined with the longer run of wire just not providing the needed amount of "ummph" to get it turning.
tech291
CEF#291
kc8zpj |
Sonny
Junior Member
Username: Sonny
Post Number: 41
Registered: 5-2004
| | Posted on Saturday, May 07, 2005 - 11:19 pm: |
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davec sounds like a short to ground causing enought voltage drain to not let the rotor to turn,
I myself just put up a yaesu G800SA today
|
Af579
Junior Member
Username: Af579
Post Number: 32
Registered: 6-2003
| | Posted on Sunday, May 08, 2005 - 11:26 am: |
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i had the same trouble. There are spacers that go between the bottem of the rotor and the mounting plate on the tower. the wires tend to short out on the plate. put sone spacers or make some. |
Davec
Junior Member
Username: Davec
Post Number: 28
Registered: 6-2003
| | Posted on Sunday, May 08, 2005 - 2:02 pm: |
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Af579, I did use brass spacers at first and was going to try a nylon bushing next, but I took out the rotor and held it it my hands every which way and had someone work the control and it still would not work. |
Crackerjack
Intermediate Member
Username: Crackerjack
Post Number: 436
Registered: 7-2004
| | Posted on Sunday, May 08, 2005 - 2:53 pm: |
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Have you placed a vo;t meter on the distant end of the long cable? |
Bigbob
Senior Member
Username: Bigbob
Post Number: 1869
Registered: 12-2001
| | Posted on Sunday, May 08, 2005 - 9:06 pm: |
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Replace the long wire,you have an open in it somewhere and the volt meter test can be confusing unless you know exactly what you are looking for. A dc test light or an ohm meter connected to the wire before it was run would have found this,never assume because it is new that it is ok,even used previously working wire should be checked.Bigbob |
