Indeed, that has been done (also by me) and works fine. http://www.jtmiller.com/t1_tuner_project.html The only drawback by the insertion of a bias tee could be that the path for discharging static charges on the antenna is interrupted.
73, Heinz HB9BCB > Am 15.11.2017 um 19:42 schrieb Steve Sergeant <[email protected]>: > > Hmmm. That means that it should be trivial to make a DC-blocking circuit > that would allow you to pull the ring of J3 to DC (and not RF) ground > over the coax to initiate tuning. Then you would have part of the remote > control puzzle solved. > > That's nearly enough to finally get me to buy a T1. > > >> On 11/15/17 10:29 AM, Dave Fugleberg wrote: >> Understood. >> The T1 manual indicates that you can manually initiate tuning remotely by >> pulling the ring of J3 to ground, so running an extra control line from the >> operating position to the remote T1 could work. >> It also details the protocol for sending band info to the T1 to recall the >> previous tuner settings on a per band basis. The special cable for the >> FT-817 uses this. >> The KX2 can be configured to send the current band out its serial port as a >> CAT command. I imagine one could build a device using an Arduino or similar >> to grab that CAT band data and send it to the T1 when requested.... Might >> be a fun project for someday. So many project ideas, so little time... >> 73 de W0ZF >>> On Wed, Nov 15, 2017 at 8:11 AM Barry N1EU <[email protected]> wrote: >>> >>> Yes, different use case. All my KX's have the internal tuner. But I was >>> thinking of an antenna configuration which would benefit from having a T1 >>> mounted away from the operating position. >>> >>> 73, Barry N1EU >>> >>> On Wed, Nov 15, 2017 at 9:00 AM, Dave Fugleberg <[email protected]> >>> wrote: >>> >>>> Barry, I went through that thought exercise before I ordered my KX2, >>> since >>>> I already own a T1. In the end I ordered the internal tuner with the >>> KX2. I >>>> have not regretted it for a minute. No extra cables, batteries, or fuss. >>>> And it works very well. >>>> Since you're concerned about remoting the tuner, your use case might be >>>> different than mine, but for a grab and go portable radio, the internal >>>> tuner is the way to go. >>>> On Wed, Nov 15, 2017 at 5:02 AM Heinz Bärtschi < >>> [email protected]> >>>> wrote: >>>> >>>>> It is correct understood, Barry. >>>>> >>>>> 73, Heinz HB9BCB >>>>> >>>>> >>>>> >>>>>> Am 15.11.2017 um 11:44 schrieb Barry N1EU <[email protected]>: >>>>>> >>>>>> I'm looking for confirmation on how I understand the T1 would work >>> with >>>>> my >>>>>> KX2 or KX3. When I change bands, I will need to go through a manual >>>>>> re-tune process. The memories in the T1 won't automatically recall a >>>>>> setting based on the newly transmitted frequency. In the case of the >>>>> KX2 >>>>>> or KX3, I understand that the memories may speed up the re-tune >>> process >>>>> but >>>>>> it will still require me pressing the Tune button manually and I >>>>> wouldn't >>>>>> be able to mount the T1 remote to the operating position. The T1 will >>>>> only >>>>>> do an automatic recall of settings without a manual re-tune when used >>>>> with >>>>>> an FT817 with the special interface cable. A special interface cable >>> is >>>>>> NOT available for the KX2 or KX3. >>>>>> >>>>>> Do I have this right? >>>>>> >>>>>> Thanks & 73, >>>>>> Barry N1EU > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
