开云体育

Hi. I’ve been following and reading furiously since my purchase and construction of my v3 uBitx. It’s housed inside an aluminium case and is wired to use a baofeng remote speaker mic. Other than that it’s stock, for the time being.
my question is when I’m listening on a number of frequencies it hoots, or oscillates, specifically on 1.900.000, 3.001.400, 3.601.800, 5.145.500 and many more, even with no antenna. I’m concerned this is something I have caused, or is it a ‘feature’ of this model of radio?
im aware that it won’t have the same level of smoothness of kits costing much more, and I’m quite content with that as I’m looking forward to implementing some mods, once I’ve achieved a base level of operation.
it appears to be a great little radio for a beginner like me.
thanks for taking time to read and for any advice you can offer.
graham
M6OIB

Graham, it's difficult to tell you what may be going on based on your description. You may be hearing digital birdies as a result of not twisting and poorly routing your wiring.? The audio cables should be kept away from and at right angles to the digital wires. They should also be twisted or shielded. I hope that helps.?
Dan? W2DLC?

On Sun, Aug 19, 2018 at 02:09 AM, M6OIB wrote:

y question is when I’m listening on a number of frequencies it hoots, or oscillates, specifically on 1.900.000, 3.001.400, 3.601.800, 5.145.500 and many more, even with no antenna. I’m concerned this is something I have caused, or is it a ‘feature’ of this model of radio?

Most of that is what we call birdies.? They are spurious tones(internally generated signals) That you can
tune through and tend to tune faster than normal signals via antenna.

Its a feature not a bug.? Side effect of doing a wide tuning range.

Allison