You can then adjust power and volume sliders to see if there is any output to your radio (for now keep the radio in Monitor mode and turn the volume knob up a bit so you can hear any transmitted audio). I'm not familiar with JT65-HF's user interface, but what is the power output slider set to? Also, if the application includes a " Tune" capability, then do not be afraid to use it during testing as Tune should output a single steady tone (like CW) for the purposes of providing a tuner with a stable carrier to tune on - this means there is a guaranteed tone output in this mode. If need be, use another audio application, such as an MP3 player to intentionally direct audio to this interface and see if your radio reacts to such (with and without manually triggering MOX and VOX modes) - just be sure to use your dummy load so you do not transmit the recorded audio or sound effects on air.
Do go ahead and double-check that your JT-65 application is actually directing its audio output to the proper sound interface - I'm sure you have already done this a dozen or more times, but do it once more on a whim. In that case you can be reasonably confident that there is either no audio output, or only very faint audio output, reaching your radio's internal USB soundcard interface.
Also be aware that many radios require you to dial back transmitter power to 50%, or less, of the maximum power level when transmitting digital modes, in general, to avoid overheating the finals since many digital modes have a 100% duty cycle. While troubleshooting, it helps greatly to enable your radio's MONITOR function so that you may hear whatever audio may reach your radio. For now you just want to try and get something to output to your radio, even if it is a bit garbled at first (so consider transmitting into a dummy load where you will disturb no one). Set the output level on your radio's soundcard interface to 75-100% for starters, as you can dial this back, if needed, later on should you notice excessive ALC activation on transmit (there should be little to no ALC activation when using digital modes). Look over your available menu options carefully to see if you can find the equivalent setup options as I suspect they probably exist on your radio.Īlso check the Audio levels being output to the virtual USB soundcard (I'm assuming the audio is via the USB cable?) using your operating system's Audio Mixer app (in Windows, this would be the speaker icon in the system tray, right-click on it and select " Playback", or similarly titled, levels).
#JT65 HF HB9HQX EDITION PLUS#
On my radio there are separate level and parameter settings for both Mic/voice and Data port inputs plus an additional setting that controls whether VOX is monitoring the Data line or the Mic input - and they are not all grouped together in the same place as one might expect. You will activate and deactivate VOX from your radio's front panel VOX control.Ĭlick to expand.If VOX on your FAt-991 is anything at all like my FT-950 (I have not downloaded and read your manual) then the VOX settings, including the choice of input source, can be found buried in the setup menu settings. If using VOX mode, be aware that some Yaesu radios have separate VOX configuration settings for the DATA and the MIC ports, and that you may need to tell the radio which of those two ports (Data or Mic) it should be monitoring so that VOX is looking at the correct input source - if turning VOX on causes the radio to transmit on your voice, rather Than your data signal, then you'll know that the radio is monitoring the wrong VOX input. If your application does not support a compatible means of activating the PTT line directly, for your radio, then you will have to setup your radio to use VOX mode instead so that the radio itself responds automatically to audio input without the need to trigger the PTT line.
#JT65 HF HB9HQX EDITION HOW TO#
You do not state which JT-65 application you are using (there are several common candidates) nor precisely how you have interfaced everything to the PC (other than mention if a USB cable), but if you wish to use automatic activation of the PTT line then you will first have to tell the application, from its configuration panel, how to activate your radio's PTT line as there are a number if different ways this can be done for various radios (such as via CAT, via switching either RTS or DTR on a virtual serial port, etc.). I don't have a 991, so this is somewhat generic information.
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