Yes, why move magnets when it is easier to send commands over the serial link? Or drive the EFC with a DAC for those Rbs that have it.
On Thu, Dec 22, 2011 at 9:53 PM, Chuck Forsberg WA7KGX N2469R <c...@omen.com>wrote: > 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 >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >>> >>> >> > -- > 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 > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.