Why have the Arduino move a magnet when it can send frequency offset
commands out a serial port?
On 12/22/2011 12:36 PM, Don Latham wrote:
Let's see... someone mentioned using a magnet on top of the case to
alter the Rb lock frequency. So, put the Rb output and the Tbolt output
into a single mixer with lopass filter, or a phase comparator, then use
the output through something like a picaxe or arduino implementing PID
software to run a model aircraft servo with a magnet on the servo arm.
Hey Presto! :-) :-)
Don
Bob Camp
Hi
To use the current crop of FE-5680A's directly with the TBolt, you would
have to tear it apart and get a wire into the C field circuit. If you
didn't
do that, you would have to stick a PC (or other controller) in between
the
TBolt and the Rb. As they come from the vendors, there is no voltage
control
capability in the units. There are so many flavors of this Rb that
anything
said about them only applies to some of them.
Bob
-----Original Message-----
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Chris Albertson
Sent: Thursday, December 22, 2011 12:20 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Using Thunderbolt to Discipline FE 5680A?
On Thu, Dec 22, 2011 at 8:50 AM, Frederick Bray<fwb...@mminternet.com>
wrote:
Has anyone successfully used a Thunderbolt to discipline a FE-5680A?
I thought I saw a posting or site where someone disabled the 10 MHz
oscillator on the Thunderbolt and used the Thunderbolt to discipline
the
FE-5680A. However, I can't find it now.
I would not do it that way. My plan is to leave the t-bolt as is and
then every 24 or so hours adjust the FE-5680A if required to better
match the t-bolt. My hope is that after some time the FE-5680A
will less and less frequent adjustments. This will be a while as my
FE-5680A is still in the mail.
I think the FE-5680A has to course of adjustment to be used in the
"fast" control loop inside the t-bolt
Chris Albertson
Redondo Beach, California
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--
Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
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