[Skimmertalk] CW Skimmer Problem - Win 10?

Bob Wilson, N6TV n6tv at arrl.net
Sat Jan 9 15:51:14 EST 2021

Are you running CW Skimmer 2.1?

In the Settings Menu, Radio tab, is radio type still set to SDR-IQ?  What
sampling rate?

Is the RS232 port of the SDR-IQ connected to your transceiver to get
frequency information?

Is the antenna port connected to an IF output of a transceiver, or to an
antenna?  Or RX ANT out of a transceiver?  Is RX ANT enabled in the

I suggest power cycling the SDR-IQ, *then* start CW Skimmer (do not run
SpectraView first, as it may reset the parameters of the SDR to different
values compared to what CW Skimmer wants).

Bob, N6TV

On Sat, Jan 9, 2021 at 9:50 AM Jeffrey Maass <jmaass at k8nd.com> wrote:

> All:
> I received a new SDR-IQ receiver to add to my collection (my 8th), and
> was testing it. I have SpectraVue and CW Skimmer (several instances)
> previously installed on the laptop used. They both have worked in the past,
> but I have not used them in the past year.
> The new SDR-IQ worked fine with SpectraView, but when I tried it with CW
> Skimmer v2.1, parallel green lines filled the Skimmer display rather than
> the expected CW signals. It then locks up and will not exit cleanly on
> request. I repeated with one of my other known-good SDR-IQs, and it behaved
> the same.
> I’m wondering: did I miss some Windows-update changes in the past year
> that affected CW Skimmer operation?  I looked through the archives, but
> found no mention of drivers being overwritten, etc.
> Thanks & 73,   Jeff  K8ND / PJ2ND
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