FT-920 CAT problems

Discussion in 'Computers, Hardware, and Operating Systems' started by KX4DV, Feb 2, 2018.

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  1. KX4DV

    KX4DV Ham Member QRZ Page

    Has anyone had any problems with the FT-920 CAT? I'm trying to pair this up with a Raspberry Pi 3 running Ubuntu MATE 16.04 with WSJT-X. I've got a setup with my FT-450D and the same RPi3 setup running great. But this one just won't connect. From what I've gathered, the FT-920 only works at 4800 baud 8/N/2. I'm using a PL2303 chipset USB to RS232 cable. Ubuntu see the cable as does WSJT-X. I've tried to increase the poll time as well since I get timeout errors. I've noticed that when I do try to test CAT, I get a CAT indication on the radio for a half a second in the top right. But everything else has failed since then. I've ordered a FTDI chipset cable to see if maybe it's just the cheap cable I was trying to use. Anyone have any experience with this?
     
  2. KX4DV

    KX4DV Ham Member QRZ Page

    I think it's the cable. For giggles I brought my Surface Pro out here and connected it up. I can see the cable just the same. But same behavior from the radio, just a blinking CAT every once in a while. Looking at HRD settings, my other cable is a FTDI chip for the FT-450D. Maybe that will solve this when it comes in.
     
  3. W9GB

    W9GB Ham Member QRZ Page

    Prolific PL-2303 chipsets (Taiwan) were widely counterfeited by mainland China.
    http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=155&pcid=41

    Raspberry Pi and Arduino use TTL (UART) signal levels (voltage) either 3.3 Volts or 5 Volts.
    Not all 3.3 Volt parts are 5 Volt tolerant. NOT Plug-N-Play, requires Knowledge of How

    RS-232C Voltage Levels (FT-920 CAT DE-9F) can be up to +/-12 Volts.
    CD7B0BD2-7434-4DB3-A7D7-90E3688CF375.jpeg
    Yaesu FT-920 HF Transceiver
    Operating Manual
    PAGE 5 : Plug Pinouts
    https://www.yaesu.com/downloadFile.cfm?FileID=672&FileCatID=158&FileName=FT-920_OpMan.pdf&FileContentType=application/pdf

    NOTICE on FT-920 REAR Panel, CAT is a DE-9F connector (Female)
    This is an RS-232C Serial Port ... Voltage levels are NOT at UART/TTL (5 V) ...
    SO a true RS-232 to USB Adapter is REQUIRED. Stated by Yaesu and Universal Radio page.
    https://www.universal-radio.com/catalog/hamhf/1955.html
    B7ED14AC-A8A6-43EA-9BA8-9A3B1B3E4CE1.jpeg
    ==
    Yaesu FT-920 CAT controller software
    by N7YG
    http://n7yg.net/software/ft920-cat-controller
     
    Last edited: Feb 3, 2018
  4. KX4DV

    KX4DV Ham Member QRZ Page

    Tried a FTDI chipset. That likewise didn't work. Same behavior. It's got to be the adapters only using TTL. I should have grabbed the adapter I have at my shop on the 450 to see it it would play. (And vice versa see if these adapters I bought will work on it) I've ordered this adapter from adafruit

    https://www.adafruit.com/product/18
     
  5. W9GB

    W9GB Ham Member QRZ Page

    Has this Yaesu FT-920 CAT port ever worked?
    It is possble to damage that RS-232 driver IC inside the radio (SM component),
    you would not be the first.

    ==
    All of my desktop computers have at least one true serial (RS-232C) port.
    Easy to do through motherboard selection or adding Lava Link Serial card.
    http://lavalink.com/serial-cards/

    I use the Lava DSerial-PCIe cards. Been using this Canadien firm’s solutions since 1980s.
    http://lavalink.com/serial-parallel-cards/products-pcie-bus-io-cards/dserial-pcie/
    ==
    Yes, Adafruit appears to be sourcing those from China.
    See Aliexpress page on the same SP-880 product. Counterfeit or Real?
    https://www.aliexpress.com/item/SP-...232RL-Chipset-Cable-Magnetic/32378654269.html
    AD743C7C-60BF-43C0-9E1F-B274B450FFF6.jpeg
    Genuine FTDI USB to RS-232 cables are featured on their product page.
    Mouser and Digi-Key sell them.
    http://www.ftdichip.com/Products/Cables/USBRS232.htm

    Hidden COM ports under Windows OS
    https://learn.adafruit.com/how-to-find-hidden-com-ports
     
    Last edited: Feb 4, 2018
  6. KX4DV

    KX4DV Ham Member QRZ Page

    Not using Windows for this. Ubuntu 16.04. Also tried serialconsole to manually control the adapter to see anything from a device level.
     
  7. KX4DV

    KX4DV Ham Member QRZ Page

    Adafruit interface likewise will not talk to it. Not using a PC, using a raspberry pi 3, hence the need for USB to RS232. Tried via windows too with the adafruit. Just a blink of the CAT notice on the screen and that's it. Wish there was some option of true RS232 out of the raspberry, but it's not the case.
     
  8. KX4DV

    KX4DV Ham Member QRZ Page

  9. W9GB

    W9GB Ham Member QRZ Page

    The Raspberry-Pi 3 interfaces, that I use, are USB or TTL/UART serial.
     
  10. KX4DV

    KX4DV Ham Member QRZ Page

    Anyone want a FT-920 and 3 different cat cables? The RT Systems cable likewise will not communicate with the radio. Just the same blink of the CAT icon on the radio screen. Doesn't matter what OS, Windows and Ubuntu, same behavior. I'll try to call yaesu and rt tomorrow to see if there's something I've missed, but it looks like CAT isn't going to happen.
     

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