开云体育

I always check my tx audio as I use the Ubitx as tx and I often receive with a Softrock SDR. If you have an sdr you can transmit into a dummy load a check your tx audio with the sdr with the antenna input disconnected. You can use an ordinary receiver ad well but you will not see the spectrum on the PC. My unit was almost perfectly aligned, just 100hz off frequency. 2khz seem a lot and maybe you can fix it with the menus. As for reported audio by others I would not care. My unit cuts very well the basses and has a good modulation from 500 to 2800hz. Some people say I am off frequency because they wish to hear more basses. Others say it is perfect. I say I like it as I monitor it at all times. You have to evaluate yourself your modulation. Don't trust what others say, they have all different ears... So check with another receiver your transmitted audio. It could be just fine.

Oops. Rev is 0.02 on bootup

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 – 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 – 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.