[TowerTalk] G-2800DXA Resistance readings

[john at kk9a.com]

I think D. Drake is correct. 
http://www.yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=104&encProdID=E0526A9F285ECCF36F75CC3FEC992990&DivisionID=65&isArchived=0

Also as he mentioned the outdoor connector is sensitive moisture and it
would be the first thing to check. The rubber boot does little to stop
ingress.  When I had G-2800DXA rotators I sealed the boot with silicone
sealant.

John KK9A


To:	towertalk at contesting.com
Subject:	Re: [TowerTalk] G-2800DXA Resistance readings
From:	Jim Brown <jim at audiosystemsgroup.com>
Reply-to:	jim at audiosystemsgroup.com
Date:	Sun, 13 Sep 2015 16:36:38 -0700


On Sun,9/13/2015 3:30 PM, D. Drake wrote:
Pins 1, 2 and 3 go to the 500 ohm position pot
with pin 2 being the wiper.  Also pin 3 is
grounded at the rotor.  So my measured resistance
from pin 1 to 3 was 506 ohms.  Pin 1 to 2 was 288
ohms and pin 2 to 3 was 221 ohms with the rotor at
45 degrees at the full CCW position pin 1-2 was
502 ohms and at the CW stop pin 1-2 was 70 ohms.

 Pins 4 and 5 go to the motor and with the rotor
not at a mechanical stop the resistance was 12
ohms

Hmmmm. That's exactly the opposite of the schematic I remember seeing
online, as well as opposite of their smaller rotator (GXE1000?). Pins 1
and 2 are the motor, 3, 4, and 5 is the position pot.

73, Jim K9YC