RF-Toolbox Pro

The app is practical, portable, affordable and most importantly, recommendable. It’s easy to use, continually updated and saves countless time hunting for that missing formula. It’s a go to app for hobbyists and professionals alike. Thank you Marcus for sticking at it.

I've been using this application for years. Great application constantly evolving. Amazing value for money. Well done !

I have had this app from when it first appeared in the store. It is excellent !!! I use it at least once a week. It saves not only lots of calculations but many hours looking for items such as pin outs, voltage drop battery size etc. Well recommended. David Romford UK

Highly recommend I've used this a lot and can safely say it's worth every penny...

Just buy it Dr_Jeff_Morris

Mr. Roskosch’s ETB Is A “Killer App”... Professional, Intuitive Expansive And Kept Up To Date! I Highly Recommend This App For All Good People... 73 KS4ML

This is just a great app!

This is just a fabulous app for anyone working with RF. Especially handy when designing equipment at the component level and almost everything you need is all in one app.

What a nice professional product. I use this app weekly, saves time from not getting on a workstation just to design or validate a simple circuit. Both RF-Toolbox Pro and Electronic TB Pro have been excellent references, and are always being improved/updated by Marcus. Thank you.

WOW....... After a 30 year break I decided to get back into Ham Radio and Electronics I stated in Boy scouts. Needless to say my math skills were never great and now pretty much gone, my military service took its toll. A few years ago I looked for this type of software but nothing like these were available, but tonight I found these two sets of tools and about hit the floor when I opened them, for me and others without an EE degree these tools include everything I need to not only troubleshoot equipment but now I think I’ll be able to build my own. I cannot say enough good things about these, check them out you won’t be sorry. Now if someone could develop programming tools for ATMELs and PICs I’ll be in heaven. Thank you for developing these awesome apps. Jim