On Wed, Jul 22, 2020 at 7:51 PM eric norris via Elecraft < elecraft@mailman.qth.net> wrote:
> 2) Does anyone offer a KX3 to KPA1500 serial cable, and a K2 to KPA1500 > serial cable for sale? No, I can no longer build them myself, even though > they are simple. > My Serial Box (S-BOX <https://bit.ly/S-BOX> or S-BOX-USB) can provide both a computer interface to the K2 or KX3 for logging software (including computer-generated CW and PTT keying over the same cable). *Plus*, it can also provides a parallel RS-232 connection to the KPA1500 XCVR SERIAL port, all using standard stereo cables (3.5mm TRS to dual RCA-M) and a KXSER-compatible cable (DE9-F to 3.5mm TRS) , all of which which I'll be happy to supply with the S-BOX or S-BOX-USB. The same scheme can work with the KPA500. Placing the amplifier in "no poll" mode means the logging program must be responsible for polling the radio for frequency data, instead of the amplifier. No polling, no tracking (except by "RF sense"). If you have no need to control the KX3 or send CW by computer, and just want the amp. to poll and track the KX3, then building your own 3.5mm TRS crossover cable would be the most economical solution. Connection of the KIO2 connector of a K2 to the KPA1500 through the S-BOX is also possible with a standard RS-232 cable as long as the "PC" connector on the S-BOX is not used (which would connect too many lines to the KIO2 DE-9 connector). One of the S-BOX secondary DE-9F connectors (or builtin-in FTDI USB-to-Serial adapters) can be used instead to just connect the TXD, RXD, and Ground pins to the KIO2, leaving the others open. I don't know if the KIO2 AUXBUS line (pin 6) is compatible with the KPA1500 AUXBUS line (pin 2), but if so, this connection is also possible through the S-BOX's 15-pin connector and a 15-pin M/F cable, which I can also supply. I don't know if the ACC2 AUXBUS option on a KX3 is compatible with the KPA1500 AUXBUS. 73, Bob, N6TV https://bit.ly/S-BOX ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
