Bob Heil just sent me some really cool gear to review!

I recently did a video on YouTube about the pros and cons of using headsets on two opposite ends of the price spectrum. A few days later, I was...

I recently did a video on YouTube about the pros and cons of using headsets on two opposite ends of the price spectrum. A few days later, I was surprised to receive an email directly from Bob Heil (W9EID)! What a treat! Completely unexpected – he educated me a bit on the possibilities of using a dynamic mic (doesn’t require phantom power) with my radios here at home, and offered to give me the opportunity to check them out, and share my findings with you! Thank you Bob & Heil Sound for this opportunity!


I’m a bit of a microphone collector. Lavalier, Condenser, Dynamic, USB, you name it!

Now – to each his own – but why someone would purchase a $1,500 transceiver, and then pair it with a $5 microphone from Walmart (no joke – i’ve seen it) – is beyond me. Usually I hear from other ops that such a microphone isn’t necessary because the transmit bandwidth is very narrow, and just a tad wider with AM. IMHO, it’s not just about dynamic range, it’s all about microphone engineering. A process better suited to audio engineers – not I – but that’s why i’m bringing these results to you – so you can hear the difference and make your own assumptions. A well engineered microphone with a larger diaphragm will ‘capture’ your voice better. Don’t believe me? Then maybe you haven’t heard some of the stellar transmit audio that these microphones can produce on the air.

I’ll have different requirements for my mics, because I use them for YouTube, recording with Ableton Live, Podcasting, and many other uses, so everyone is different! I’ve got some ideas for the video, but i’d like to know what my readers/viewers would like to see (so please comment below or feel free to drop me a note!). I was thinking about having different amateur radio ops use these microphones on the air, and giving an honest review of what they thought of the microphones (using different kinds of rigs hopefully). You already know i’m going to play with them and give my .02, I was already jamming out on one to some Collective Soul! Realizing I need to apply some minor acoustical treatments to my ham radio shack (future blog post-stay tuned)! I’ve definitely got my work cut out for me! Fun times ahead though!

Stay tuned for a comparison of the Heil PR 781, PR 40 & PR 77!



Heil SoundMicrophones
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  • kayle rowlee
    7 May 2017 at 8:43 AM

    Congrats on the trial swag. Wish i would have waited before buying AT 2035, then having to buy a mixer for phantom power, then an iBox! Keep up the good work, enjoy your articles, saved me some un-need experimentation seeing up my rig with HDSDR!
    Thanks again Johnny, Kayle – KG5NTE
    Tejas Hill Country – EM00us

  • Ed VK4AN/NH7AA
    7 May 2017 at 2:12 AM

    BTW, I have seen what looks to be Heil headsets for sale on Chinese manufacturers websites. I sure hope Bob knows about this!

  • Ed VK4AN/NH7AA
    7 May 2017 at 2:09 AM

    For every viewer there is probably a personal opinion…whether based on practical use or engineering specs or just sales hype… The old D104 Crystal mics were/are ‘tinny’ sounding but packed a great deal of punch into the 3KHz bandwidth of SSB. The same goes for a lot of $5 dynamic mic’s…they are ‘tinny’, but are effective for DXing but not so good for rag-chewing. So, for PUNCH the cheaper mics do the job better than the others…but for good Rag-chewing they are quite irritating to listen to. There is a phrase many sellers know…”Perceived Value!”… Look it up then read on…. You looked it up?…Good… If you see two mic’s for sale..they are absolutely identical in looks and specs and were manufactured in the same factory side by side…one is $100 and the other is $10…now, they are exactly the same microphones! The first thing you think, “What’s wrong with the cheap one?…or, the cheap one just can’t be as good as the other one!” That’s ‘perceived value’… Now K5ACL has taken what I think is a great approach to determining what mic is best for what situation without using cost as a factor… The results may mirror what I did several years ago… I had a Heil ProSet+, a D104, a $5 Tandy mic, a Kenwood desk mic and several others… I made hundreds of on-air tests in ‘rag-chew’ mode as well as having my audio recorded by several DX stations during contests then email me the MP3 files. I did not use any compression or audio sculpturing on the TX audio. It would be interesting to compare them with your findings. And, NO, the same mic for rag-chewing is probably not the best mic for DX Contesting!