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remote software CW keyer with ASIO side tone

Hi folks,


I'm just working on a remote cw keyer for my Flex-6300. The cw key is attached to the PC via USB-RS-232. The side tone is generated via low latency ASIO audio. This already works just fine.

Based on the information given from KE5DTO and NQ6N here

https://community.flexradio.com/flexradio/topics/is-keying-possible-via-the-api-or-cat-serial-rts-or...

I want to key the radio via network.

I have already download the FlexAPI v3.1.8. I was able to connect to the radio according the example ComPortPTT from the FlexAPI. This is my Forms1.cs:

 

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

 

using Flex.Smoothlake.FlexLib;

using Flex.UiWpfFramework.Utils;

 

 

namespace Iambic2

{

    public partial class Form1 : Form

    {

        private Radio _radio;

 

        public Form1()

        {

            InitializeComponent();

 

            WindowPlacement.SetPlacement(this.Handle, Properties.Settings.Default.WindowPlacement);

 

            API.ProgramName = "ComPortPTT";

            API.RadioAdded += new API.RadioAddedEventHandler(API_RadioAdded);

            API.RadioRemoved += new API.RadioRemovedEventHandler(API_RadioRemoved);

            API.Init();

 

        }

 

        void API_RadioAdded(Radio radio)

        {

            if (_radio == null)

            {

                _radio = radio;

                _radio.Connect();

                //UpdateMox();

                //_radio.CWPitch = 650;

            }

        }

 

        void API_RadioRemoved(Radio radio)

        {

            if (radio == _radio)

                _radio = null;

        }

 

 

        public void RadioTriggerOn(double timeStamp)

        {

            //Console.WriteLine("On - " + ((int)Math.Round(timeStamp)).ToString("X4"));

            _radio.CWPTT(true, ((int)Math.Round(timeStamp)).ToString("X4"));

            _radio.CWKey(true, ((int)Math.Round(timeStamp)).ToString("X4"));

        }

 

 

        public void RadioTriggerOff(double timeStamp)

        {

            //Console.WriteLine("Off - " + ((int)Math.Round(timeStamp)).ToString("X4"));

            _radio.CWKey(false, ((int)Math.Round(timeStamp)).ToString("X4"));

            _radio.CWPTT(false, ((int)Math.Round(timeStamp)).ToString("X4"));

        }

    }

}

 

RadioTriggerOn() / Off() are called at the according time instant of the side tone. timeStamp is counted in milliseconds with rollover at 2^16.

With this programm the radio does not send out any HF. I can see no reaction from the radio except that the normal CW key plugged into the radio itself does no work anymore after I have pressed the RS232 CW key a least one time (no HF is send, side tone works as usual). I have to reboot the radio to bring it back to normal operation.

I have noted that CWKey() is specially designed for the Maestro. So I have changed line 1763 of Radio.cs as follows:

            if (true) //(API.ProgramName == "SmartSDR-Maestro")

 

What changes are necessary to make this program work?


Harald, DL3HM

Answers

  • Harald - DL3HM
    edited February 2020
    Update:

    When I switch from CWKey() to CWKeyImmediate() in the code above the radio is keyed properly. So there is obviously a problem with the generation of my timestamps.

    With Wireshark I can see "ping ms_timestamp" messages on TCP port 4992. My timestamps are not in sync with these timestamps. Moreover the timestamps in CWKey() have a different format (hex integers) than the ping timestamps (decimal numbers).

    Is this the cause of my problem? How can I get my timestamps in sync with the timestamps already sent by SmartSDR?


    Harald, DL3HM
  • Harald - DL3HM
    edited February 2020
    Update:

    with the following code CWKey() works. Nothing was wrong with the timestamps. Instead the appropriate  _guiClientHandle has to be provide to CWKey().



    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Windows.Forms;

    using System.Threading;
    using Flex.Smoothlake.FlexLib;
    using Flex.UiWpfFramework.Utils;


    namespace Iambic2
    {
        public partial class Form1 : Form
        {
            private Radio _radio;
            private uint _guiClientHandle = 0;

            public Form1()
            {
                InitializeComponent();

                WindowPlacement.SetPlacement(this.Handle, Properties.Settings.Default.WindowPlacement);

                API.ProgramName = "ComPortPTT";
                API.RadioAdded += new API.RadioAddedEventHandler(API_RadioAdded);
                API.RadioRemoved += new API.RadioRemovedEventHandler(API_RadioRemoved);
                API.Init();

            }

            void API_RadioAdded(Radio radio)
            {
                if (_radio == null)
                {
                    _radio = radio;
                    _radio.Connect();
                    _guiClientHandle = _radio.GuiClients[0].ClientHandle;
                }
            }

            void API_RadioRemoved(Radio radio)
            {
                if (radio == _radio)
                    _radio = null;
            }


            public void RadioCWKey(bool state, double timeStamp)
            {
                if (_radio != null)
                {
                    _radio.CWKey(state, ((int)Math.Round(timeStamp)).ToString("X4"), _guiClientHandle);
                    //_radio.CWKeyImmediate(state);
                }
            }
        }
    }



    Harald, DL3HM

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