[amsat-bb] another rotator question

[Mike Thompson]

either the antenna's are installed opposite (flip them 180, and rotate the
elevation rotor 180 degrees from it's current position relative to the
azimuth rotor), or swap the motor wires to the elevation rotator.

On Tue, Mar 27, 2018 at 12:14 PM, Rolf Krogstad <rolf.krogstad at gmail.com>
wrote:

> The antenna is rotating.   I do a visual check and the antenna is
> horizontal.
> I have the controller indicating zero, I press the DOWN button and hold it
> for a bit.
> When I go out and do a visual check the antenna is now elevated above zero.
>
> Rolf  NR0T
>
> On Tue, Mar 27, 2018 at 12:11 PM, Mike Thompson <zryder94 at gmail.com>
> wrote:
>
>> Is the antennas physically moving up when you press the up button? IE
>> when you press a button, is the rotor moving opposite, or is the needle
>> indicating opposite?
>>
>> On Tue, Mar 27, 2018 at 11:53 AM, Rolf Krogstad <rolf.krogstad at gmail.com>
>> wrote:
>>
>>> Question:  My elevation rotator (Yaesu G-5400) works fine, but to raise
>>> the
>>> elevation I have to press the down button and to lower it, I press the Up
>>> button.  How do I reverse this so it works as intended?
>>>
>>> Background:
>>> I had been the traditional HF ham for years.  I had a tower with a TH7
>>> and
>>> a Yaesu G-1000-DXA rotator.  I then got into working satellites.  I
>>> purchased a used Yaesu G-5400 rotator and controller.  For the five years
>>> since installing the elevation rotator I have been manually controlling
>>> my
>>> rotators.  I relabeled the up and down buttons on the controller and all
>>> was good.  A few years ago I purchased a new LVB Tracker from AMSAT-NA
>>> but
>>> it sat on the shelf.
>>>
>>> I am now automating my rotators.  I have the azimuth rotator working fine
>>> and have connected the LVB Tracker to control the elevation rotator and
>>> done the configuration routine.  I can control the elevation using the
>>> LVB
>>> buttons, but must press up for down and down for up.
>>>
>>> I looked at the controller schematic and it appears that pins 1, 2, 3 of
>>> the rotator cable connector are connected to the potentiometer:  pins 1
>>> and
>>> 3 are on either end of the pot windings and pin 2 is the wiper.
>>>
>>> I set the antenna to 0 degrees elevation (0 on far left).  I tried
>>> reversing the wires for 1 and 3, 1 and 2, 2 and 3.  I don't think any of
>>> these will help me here, but am not sure.
>>>
>>> Any suggestions on how to reverse the buttons so that up is up and down
>>> is
>>> down?
>>>
>>> Thanks
>>>
>>> Rolf   NR0T
>>> Grid EN34
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>>
>>
>