[TowerTalk] HamIV Rotor sluggish
wa5rtg at gmail.com
Sun Jan 13 10:27:48 EST 2013
And regardless of how big the wire is you may on occasion have to "rock the antenna". I think if the wind is blowing just right you will have to do that to get that brake wedge to come out.
Sent from my iPad
On Jan 13, 2013, at 8:40 AM, Bryan Swadener <bswadener at yahoo.com> wrote:
> Hi Doug,
> Before you do anything, what is the wire resistance? The manual says the maximum interconnect cable resistance is...
> Terminals 1 & 2 = 0.8 ohm
> Terminals 3, 4, 5, 6, 7, and 8 = 2.0 ohms
> According to a nifty calculator spreadsheet (http://www.rst-engr.com/rst/jimsdata/wirecalc.xls), to stay under those limits at 275 feet, you should be using at least 14 AWG (0.696 ohms) and 20 AWG (1.759 ohms) wire respectively. If you're already there, look elsewhere. Several of the othe suggestions sound good.
> vy 73,
> Bryan WA7PRC
> Date: Sat, 12 Jan 2013
> From: Doug N4IJ
> Subject: [TowerTalk] HamIV Rotor sluggish
> The rotor is on a tower and the run is about 275 ft from the shack.
> What is the best way to get more response from it? At times I have to
> rock the antenaa back and forth to get it to even move. I am sure it
> must be voltage loss. Boost the voltage from the controller?
> Doug, N4IJ
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