[amsat-bb] Fw: Fwd: LVB tracker

[Howie DeFelice]

The input to the AZ and EL A/D's are clamped to +5V by diodes as well so this makes sense. 

> From: wa4sca at gmail.com
> To: PeteW2JV at verizon.net; AMSAT-BB at amsat.org
> Date: Wed, 17 Feb 2016 06:26:40 -0600
> Subject: Re: [amsat-bb] Fw: Fwd: LVB tracker
> 
> Peter,
> 
> It isn't shown on the schematic, but elsewhere in the rotator docs (page 5, External Control) it 
> specifies 0-4.5V DC for the position sensing outputs.  Depending on the existing interface, a simple 
> voltage divider would probably do.  I don't have an LVB tracker, so I can't comment on that end.
> 
> 73s,
> 
> Alan
> WA4SCA
> 
> 
> 
> 
> <-----Original Message-----
> <From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of W2JV
> <Sent: Tuesday, February 16, 2016 7:30 PM
> <To: AMSAT-BB at amsat.org
> <Subject: [amsat-bb] Fw: Fwd: LVB tracker
> <
> <
> <The Great South Bay, Amateur Radio Club, of which I?m a member wants to put together a satellite
> <station.
> <They have an existing home made AZ EL power unit which works.  They are looking into interfacing an
> <LVB tracker with it.
> <and need to know what voltage level input is required for the feedback loop. The unit currently puts
> <out 0-6.25vdc corresponding to 0-360 AZ and 0-180 EL. Looking at the G5500 schematic they go
> <through an opamp arrangement but do not provide any voltage levels.
> <
> <If anyone can the club with some info I'd sure appreciate it.
> <
> <Thanks,
> <
> <W2JV Peter
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> 
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