[time-nuts] Things to look for when buying a few FE-5680A's?

Chris Albertson albertson.chris at gmail.com
Sun Jan 22 12:49:34 EST 2012

The current batch of (about) $40 units are different from what was
available a year ago.  These new ones require 5V DC input in addition
to 15V and can only be programmed via RS232 a few Hz away from 10MHz.
So they are only good for use as a 10MHz reference

"Option 2" in the book refers to a different type FE5380 that can be
programed over a very wide range of several MHz.   I think these are
still being sold on eBay but not for $40.  They seem to be over $100.

Which is which and how to tell?   Just look at the price.

On Sat, Jan 21, 2012 at 9:59 PM, Brad Stockdale <brad at shinji.net> wrote:
> All,
>   I've been on the sidelines of being a time nut for a while now and I'm
> working on getting back into things. Before I drifted away from my hobbies,
> I remember the FE-5680's being around, but I didn't know much about them and
> was more interested in GPSDO's. I think I'd like to help kickstart my
> interest in the area again by picking up a few FE-5680A's from eBay. So, I
> was wondering if there's any certain things I should look for when buying
> some...
>   It looks like there's a pretty consistent supply right now on eBay... Are
> there certain sellers that people would recommend?
>   I noticed that Option 2 is the RS-232C stuff. Do most on eBay have this
> option?
>   Anything in particular I should watch out for?
> Thanks,
> Brad
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Chris Albertson
Redondo Beach, California

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