The CAT Tool for WebSDRs (2025)

Posted on September 7, 2020 by nerfd

The CAT Tool for WebSDRs (1)

CATSync allows you to syncronize public WebSDR receivers with your real rig connected via CAT control to your computer. It supports the classical WebSDR as well as Kiwi SDR interfaces:

  • Control any public WebSDR server by means of your real RIG…
  • Supports a wide number of RIG’s (it uses the popular OmniRig engine)
  • Supports WebSDR and KiwiSDR browser based SDR receivers
  • Tune the VFO of your radio and see the web SDR follow in realtime !
  • Click on the WebSDR waterfall and retune your rig in realtime.
  • Syncronizes both, frequency and mode changes (CW, USB, LSB, AM, FM)
  • Listen to the same frequency as your rig via web SDR or viceversa
  • Ideally suited e.g. for people suffering from local QRM or working in nets
  • Can track RX or TX VFO (e.g. to find that split of a DX station) if radio CAT command set of your rig supports both independently
  • Can be interfaced with popular logging software using OminRig or via VSPE port splitter.

This software can help you to bring you back into ham radio when you are suffering from local temporary or permanent high noise levels in an urban QTH location.

You can download a functional Demo from these links:

Important Note:
When installing this software you may get a warning by your Windows Security System saying that this application is from an “Unknown Publisher” and therefore recommends not to install it, as it may be a malicious program.

See my blog post in this regard:
Are my installers secure?

Download Sites:

Download CATSync Demo V1.21 Installer here (Dropbox)

Download CATSync Demo V1.21 Installer here (GoogleDrive)

Note: If my app crashes on startup, please install Microsoft Visual C++ 2013 x86 redistributable runtime files (see system requirements below)
Make sure it’s really x86 and not x64 (even on 64bit Windows systems !!!).

The demo has all the functions of the full version, with the exception that it will not retune the web SDR audio in realtime (you only see the web SDR frequency updating, but the audio remains on the former frequency). You can only retune the audio to the new frequency manually. The new Click + Tune feature is limited by 90 seconds per session.

Antenna

Review

Equipment

News

The post The CAT Tool for WebSDRs appeared first on QRZ NOW – Ham Radio News.

Software
The CAT Tool for WebSDRs (2025)

References

Top Articles
Latest Posts
Recommended Articles
Article information

Author: Amb. Frankie Simonis

Last Updated:

Views: 6279

Rating: 4.6 / 5 (76 voted)

Reviews: 91% of readers found this page helpful

Author information

Name: Amb. Frankie Simonis

Birthday: 1998-02-19

Address: 64841 Delmar Isle, North Wiley, OR 74073

Phone: +17844167847676

Job: Forward IT Agent

Hobby: LARPing, Kitesurfing, Sewing, Digital arts, Sand art, Gardening, Dance

Introduction: My name is Amb. Frankie Simonis, I am a hilarious, enchanting, energetic, cooperative, innocent, cute, joyous person who loves writing and wants to share my knowledge and understanding with you.