Okay, well this is my first article in English here. I decided to do this, because I get lots of question from outside of Germany about my experiences with this small chinese linear amplifier. Thanks to Peter, HB9FGQ who answered on my topic on the FT-817 Facebook group, I was able to make myself a y-cable for my chinese MX-P50M amp. Now I can hit PTT for digital modes such as PSK or JT-65/9. Also the QRG-reading on the electronic logbook is now working fine, as this construction lets the CAT passes through. I went to my local electronic store (Conrad Electronic) which had the needed parts on stock. After I picked up the items I needed about 3 hours for everything.

I have a temperature regulated soldering station, and used 300°C for the very tiny connectors. I made a 1:1 Connection from Mini-DIN male to female with all 8 wires. On the male side, the one you plug into the FT-817, you need also to solder GND and TX GND out of of the package (as Peter sais "piggyback"). You see this one the photos with the 2 cables in one heathshrinking-tube. You better have some experience when you solder those Mini-DIN connectors. Some of the worst things I have ever worked on.

Total price for the 2 connectors were 6 Euro, cable (8 wires, 1:1 soldered) came out of the junkbox. The wire for the amp is an old switching-line from my old PC, also from the junkbox. Fits into the socket of the amp, like it was made for it. First QSO btw was to JA2LWA on 40m, who is 9.300km away.

  • MX_P50M_FT-817_CAT_Data_Digimodes_Y_Cable_1
  • MX_P50M_FT-817_CAT_Data_Digimodes_Y_Cable_2
  • MX_P50M_FT-817_CAT_Data_Digimodes_Y_Cable_3
  • MX_P50M_FT-817_CAT_Data_Digimodes_Y_Cable_4
  • MX_P50M_FT-817_CAT_Data_Digimodes_Y_Cable_5
  • MX_P50M_FT-817_CAT_Data_Digimodes_Y_Cable_6
  • MX_P50M_FT-817_CAT_Data_Digimodes_Y_Cable_7
  • MX_P50M_FT-817_CAT_Data_Digimodes_Y_Cable_8
  • MX_P50M_FT-817_CAT_Data_Digimodes_Y_Cable_9

0 # tallman 2017-04-03 04:12
Please notify to me how to install ACC wire(red and black) to yaesu ft-817ND ACC port.

May i connect red wire to TX GND and Black wire to GND?
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