MuteMate – WebSDR MuteSwitch – PTT Muting Circuit For Internet Receivers

Here is my improved PTT muting circuit! I've seen at least a few PTT muting circuits for Web radios, but this one I helped design and so I'll name it the "MuteMate" Basically what it does is mute the computer audio when I transmit on my radio. This eliminates having to do it manually and that is a big plus especially when running a net. I've been using the prototype for a few weeks now and it works perfectly.

See my previous article: KiwiSDR and WebSDR: Exploring the World of Online Radio

ptt muting circuit

This schematic comes from the Northern Utah WebSDR site. Link below.

Why Use Internet Receivers, WebSDR or KiwiSDR?

I mainly use them when conditions are poor and sometimes the band exhibits one way propagation. When that's the case, the other station may be able to hear me, but I can't hear them.

At other times when I am calling a net I won't hear a station because I usually run some power. I can usually get by with the help of a relay though. However, it's nice to hear their transmission when they give it.

At other times I may have local noise, QRN, and I can't hear many stations at all. The Internet receivers are a big help when this happens, whether I am running a net or not.

Other times I may have QRM from another station in close proximity to me or a station at a distance that splatters.

There are many situations where using a Internet receiver will come in handy.

IMO, it's always better to work out the receiver problems if I can and not use Internet receivers, but sometimes it's just not possible!

When I'm Portable I use Internet Receivers

When I'm boondocking and running my generator I have to use Internet receivers and when I'm in a campground with others near me I use them because of QRN coming from nearby RVs.

I prefer traditional operating, because it's always more fun for me to use my transceiver as it is intended. This WebSDR MuteSwitch is great though and makes it more fun when using the Internet receivers, because I don't have the added frustration (or work) of manually trying to mute my computer.

WebSDR MuteSwitch - Improved PTT Muting Circuit

This is a new and improved PTT control for using Internet receivers. One of the big improvements is the size. It's small (SMD) and a case will be coming in the near future. Maybe I'll 3D print it.


mutemate - websdr mute switch

How it works!

YouTube player

Thank you

Subscribe to my website or follow me on social media because I'll be giving away the prototypes I'm testing. More about this in the near future and I hope to make them available for purchase in Febuary 2024, just in time for HamCation in Orlando.

To stay up to date with Mr. B and I on our travels, follow us at TwitterFacebookInstagram and YouTube. If you have any questions or comments about our journey, we invite you to join the conversation in our comment section here or at YouTube. It not only helps you, but other readers as well!

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Is this something you would be interested in? Please comment below.

Stay in touch and warmest holiday wishes & best 73! – Rich, KØPIR

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They are available now without case (case not needed).

Northern Utah WebSDR

MuteMate Quick Setup Guide

Windows Setup Guide Video

MuteMate Setup Diagram

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I'm an Amateur Radio enthusiast. I love the hobby and experimenting with radios, antennas and software. On my YouTube channel I upload videos on the Icom 7300 and Icom 7610 along with Ham radio software programs. I hope to inspire people to try new things in Amateur Radio.

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6 months ago

I would love one of these switches if you make them available for sale!

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