At 11:36 AM 1/26/2012, Chris Albertson wrote:
The "option 2" that is in the book is different from the fine scale
adjustment the current $40 can do. the true option two units can be
programmed over a range of many MHz by sending RS232 commands but the
current units can only by programmed over
shoot any firmware.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Chris Albertson
Sent: Thursday, January 26, 2012 12:36 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Things to look for when b
On Thu, Jan 26, 2012 at 9:13 AM, Bob Camp wrote:
> Hi
>
> If you *need* to lock one of the new FE-5680's 10 or 20 Hz high, you
> probably can adjust the cap on the VCXO center it's range up there.
The frequency division is done by digital logic inside a CPLD and
you'd need to re-program the firmw
At 01:21 AM 1/26/2012, Rex wrote:
physical differences (like an sma output). Also, FEI has not been
responsive, to my knowledge, to any questions from us surplus
consumers/hackers.
I wonder if they'd be responsive to a 'group-buy' of documentation or
answers? Maybe it comes down to whether i
-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of John Beale
Sent: Thursday, January 26, 2012 1:29 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Things to look for when buying a few FE-5680A's?
> On 1/22/2012 12:49 P
On 1/22/2012 9:49 AM, Chris Albertson wrote:
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 refe
On 1/22/2012 12:49 PM, Chris Albertson wrote:
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 refe
Chris,
Thank you for the input on the subject. I'll keep my eyes open for
the two different kinds. In all honesty, I probably don't need to alter
the frequency... I just like the ability to interrogate the unit for
other values such as reading the ADC's and health status bits. I've seen
ot
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 diffe
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
kick
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