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Re: No Modulation with Ftdx101D


 

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OK Daniel
so indeed I looked in the sound settings (Soundcard/Devices)
I checked the "Audio Port" option, in input I put the internal sound card of the FTdx101D
but
in "playback" I had also put the sound card of the Ftdx101,

I modified and put the audio output of the PC in the playback field
and indeed it is since this manipulation that now it works :-)

I still have to find some correspondents to test :-)

Thanks again


Daniel (AE4ON) via groups.io a écrit le 31/01/2025 à 09:04?:
CAT, using hamlib, flrig,?etc., handles the PTT and synchronizing settings (VFO Freq, mode, filters, etc.).? It has nothing to do with modulation.? CAT has nothing to do with decoding.

Decoding and Modulation is based on audio and is independent of CAT.? You can have fully functional audio with no CAT and fully functional CAT with no audio.

If you are receiving and decoding the received signals, then your Audio "capture" settings in FLDIGI are good.? You are using the correct audio "microphone" and the volume/signal-levels are good.

If you are getting zero modulation out, then the audio output isn't making it to the rig.? Verify the Audio "playback" settings and ensure you have the correct "speaker" selected (usually named "USB Audio Codec" or similar).

If you are running Windows 11, there is an extra set of configuration in the Windows audio "Sound Settings" that you may have to reconfigure.? Under Windows 10, simply selecting the correct audio devices inside FLDIGI was sufficient, but under Windows 11, the Operating System may redirect the audio based on your OS configuration.

In the rig, you have to make sure that the rig is in USB Data mode so that it can be configured to transmit the audio over the USB cable.? This is probably correct if you are receiving over USB audio.? However, you also may have to configure the rig to use the USB input as the modulation source.? Many times a rig is set to monitor the Microphone or an Accessory port for data mode operations (as would be the case if using a Signalink or other external source), and if your computer is sending audio over the USB cable, the rig has to be configured to use that audio source or you will get zero modulation (or modulation based on background audio picked up by the microphone).

73 de AE4ON


On Thu, Jan 30, 2025 at 8:14?AM daniel lavocat via <F6FLU=[email protected]> wrote:
Hello
I'm trying to restart FLDigi after having given up a long time ago

Apparently I have the CAT, it decodes well but if I click on a macro to switch to transmission it sends a continuous carrier no modulation
?
I think it's a setting linked either to Hamlib or the internal sound card of my FTdx101D ?
Can you help me ?

Thanks
?
Dan - F6FLU


-- 73 from Daniel F6FLU --


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--
Dan - F6FLU

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