I am using the now defunct MFJ AMERITRON Remote Coax Switch RCS-10. (2024/05/28MFJ AMERITRON RCS-10 Antenna Switch Repair
However, after switching between four antennas and changing the radio band, I often forget to switch the RCS-10 antenna switch.
So I searched the internet for a solution that could solve the problem. OK2ZAW Jan SustrHamparts.shopinBCD to 16 converterI found something called A product for obtaining 16-point output from the BANDDATA of the LINEAR terminal of a YAESU radio manual
69 euros (approx. 11,000 yen) 4,300 pesos
OK2ZAW I exchanged emails with Jan many times and placed the order. Shipped from Czechia on April 11th and arrived in Ozamiz on May 16th
While looking at the FTDX3000 manual, I wired the DSUB15 pin that I ordered. Switch the band from 1.9MHz to 50MHz and confirm that the INPUT and OUTPUT work properly.
Next, I checked the circuit diagram of the RCS-10 that Jan sent me.
Fortunately, the RCS-10 has eight input terminals.BCD to 16 converterConnect the output of
The antennas are 3.5MHz, 7-21-28MHz, 10-14MHz, and 18-24MHz. The signal input to the antenna switch is connected with a diode matrix.
Dirty but aerial wiring of diodes
I put it in a Takachi TW9-6-17B case that I had previously purchased from Amazon Japan and it was done.