A Powerful CW Tool – CW Skimmer (CWS) 170 kHz Wide
Yes, with the Icom 7610 we have a 170 kHz wide spectrum with CW Skimmer! It’s a powerful CW tool for the Amateur Radio operator. The wide settings are a little different than the narrow (24 kHz) settings. Wide is very effective with something like DXLabs Spot Collector or the N1MM Logger+ Telnet Cluster. If you are a contestor, DX chaser or just looking for stations calling CQ, getting CW Skimmer (CWS) running at 170 kHz wide is a nice addition to any shack. This is all done very easily with the Icom 7610 using HDSDR. Have a look at the videos below.
Before doing this, I setup everything as in the article: 24 kHz CW Skimmer with the Icom 7610. If you need help getting the Icom 7610 ready for CW Skimmer, see my first article Icom 7610 HDSDR and Icom I/Q Package.
CW Skimmer (CWS) 170 kHz Wide
CWS Wide is not used entirely the same as 24 kHz (narrow) and we don’t see a full 170 kHz in CW Skimmer either. Unless you are viewing CW Skimmers (CWS) band scope.
The new settings in HDSDR and CWS make CWS unusable for changing frequency on the radio and HDSDR. There is no rig control in CWS. Thus we use something like Spot Collector to pull spots from CWS and then we can quickly click on spots and change frequency to the spotted station. See how this works in the video below.
Changes in HDSDR
There are only two changes in HDSDR. One is in the ExtIO settings and the other is to set the “Tune” frequency . See the video below.
An easy way to have HDSDR setup for SSB, CWS Narrow and CWS Wide is to use profiles in HDSDR. That way we don’t have to keep changing things when we go from SSB to CW. I made a short video on this.
Changes in CW Skimmer
For 170 kHz wide in CWS use SoftRock for the Radio.
The LO frequency in CWS is actually the “Tune” frequency set in HDSDR. Strange enough, but that’s the way it works.
Enable Telnet in CWS too.
Using the Spots From CW Skimmer
In the document provided by Icom (link below) they show detailed instructions for configuring N1MM Logger+ to pull spots from your CW Skimmer. It’s very easy to do.
I used the same setup with Spot Collector (DXLab Suite) and AC Log too.
Using it in either program provides a powerful CW tool for Ham operators.
It did not work in the Ham Radio Deluxe DX Cluster software. DX Cluster will not display the spots. Maybe something can be done with this in the future.
More On N1MM Logger+
If you want help with N1MM Logger+ and configuring ports with the Icom 7610, I have a nice article here: Icom 7610 N1MM One Cable RTTY FSK CW – How To.
The video below shows changes made in HDSDR and CW Skimmer. You’ll also see how this works in N1MM Logger+, DXLab Suite SpotCollector and Amateur Contact Log. The 170 kHz wide spectrum is explained near the end.
A big thanks to all the subscribers and everyone who posts questions and comments with ideas and suggestions. I sincerely appreciate it and hope this website helps Amateur Radio operators.
If you have a question or suggestion, please comment below. I will do my best to answer it and your experience will help others as well.