I received my ubitx in early Jan after ordering it in mid December. I have been on and off with making progress with it, but have been following this forum since then. This board has a problem and I was hoping to see someone else come up with it too. The software rev. is XX at bootup. So I have been hesitant about changing anything until I consulted with the group. It works fine on TX and RX on CW.
On SSB (l or u) the voice audio is severely distorted. When others hear me on the air or when I listen on a local receiver you can tell what the words are (callsigns) but they are distorted. I have tried several different mic elements. I have injected audio from a sig gen into the mic and also directly on the input pin. The rig will pass 300 ¨C 3K tones fine. The output of the audio/mic amp looks fine too. The tones sound good OTA.
When I look at the power out on a dummy load it drops off dramatically above 3Khz. I think the human voice has tones above 3K. The second thing seems to be that the rig is about 2Khz off frequency from the dial. When checking into a local net I¡¯m reported low as I recall.
I hope there is a simpler solution that diddling with the frequency parameters. Oh, the receiver receives fine on the designated frequency.
Any ideas?
Dan Withers ¨C WM7W
I¡¯m old too. I was hand booting a DG Nova 1200 before reset-program load was implemented. I couldn¡¯t lift a Wangco 5 mb disc drive either.
