[TowerTalk] Hy-Gain Calibration Pot/Switch

[W2RU - Bud Hippisley]

Push the switch in and adjust the pot until you have set the pointer to exactly full scale.  Then carefully push the switch in again to take the circuit out of Calibration mode; now you should see your actual beam heading — as accurately as it can be read.  The Calibration switch compensates for individual line voltages, circuit variables, etc.  I used the word “carefully” above because it’s all to easy to impart a slight rotation to the knob (and hence the calibration setting) when pushing on the switch that’s on the same shaft.

Bud, W2RU

On Jul 7, 2014, at 12:38 09PM, Gedas <w8bya at mchsi.com> wrote:

> I found in my collection a Hy-Gain rotor control box that has a push/pull switch on the calibrate pot.  None of the manuals for my TT and Ham-4 rotors mention that switch.  Can someone explain how the switch is to be used or point me to a URL for the manual that would?  Tnx
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