Be aware that Ed's circuit is much like mine in that it does not have a pull down on the TxInh line. Therefore it could act like mine did and extend the time till transmit is enabled. A resistor to ground might be a good addition if this is important.
Also as a side note, the kx3 is different from the k3 in that it has a pull up on its txinh pin (actually on ACC2) so if you select txinh=hi, the radio will not transmit without something to pull the line down. Mark. N2QT On Jan 27, 2013, at 11:51 AM, Edward R Cole <[email protected]> wrote: > Although Mark has solved his INH problem, I thought I would share my ckt for > using the inhibit function with the K3 (in fact it also has ckts for > inhibiting a FT-847 which I no longer have): > http://www.kl7uw.com/TX-INHIBIT.htm > > I use the Band-0 and Band-1 select functions to control VHF inhibiting, only. > One can omit them for using inhibit for all frequencies. DIGOUT-1 is used > for 6m inhibit in my station. > > What is not shown in my current configuration is that the inhibit line is run > thru TR relay sense contacts to ensure TR relays are in Tx position before > enabling xmit on the K3 (useful if running QRO). > > Hope this is helpful for anyone planning use of the K3 INH function. > > 73, Ed - KL7UW > > ______________________________________________________________ > 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 ______________________________________________________________ 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
