Uploaded May 2026 | Updated September 2026, 2 weeks ago
Bonus Episode: Scratch Building a Frequency Counter? Rex W1REX Breaks Down His X-Checker Circuit
This one wasn't planned as an episode — but it was too good not to share.
As part of our ongoing Beginner Project Series, we're scratch building a frequency counter based on Rex Harper W1REX's X-Checker kit from QRPme.com. Before we put iron to board, we sat down with Rex himself to walk through the circuit — and what came out of that conversation is exactly the kind of deep-dive explanation that doesn't show up in any build guide.
If you're following along with the Beginner Project Series and building this circuit from scratch, this video will give you a much clearer picture of what's actually happening on that board — straight from the designer himself.
Rex Harper W1REX is the one-man operation behind QRPme.com, home of the Tuna Tin 2, the Rockmite, MePADs, and dozens of other beloved QRP kits. He's been designing and kitting ham radio projects for decades and is a fixture in the QRP homebrew community.
Resources mentioned:
X-Checker kit: qrpme.com/?p=product&id=Q17
Join us as we explore how you can get involved in portable radio, QRP, and more in this episode of the All Portable Discussion Zone (AP/DZ). Every aspect of portable operations is covered in this biweekly podcast, from news and gear to achievements, the workbench, contests, awards, and beyond.
**SolderSmoke DISCORD INVITE**: discord.gg/GYVRZSBVFC
Connect with us:
* Discord: discord.gg/WVE3vVveWU
* YouTube: youtube.com/c/redsummitrf
* TikTok: @redsummitrf
* X (formerly Twitter): @NJ7V_
Support the channel:
* Buy us a Coke: buymeacoffee.com/RedSummitRF
* Red Summit RF Amazon Storefront: amazon.com/shop/redsummitrf
#apdz #SOTA #POTA #PortableOps #HamRadio #QRP #Workbench #Electronics #homebrewradio #DIYradio #testequipment #RFprojects #amateurradio #hamradiopodcast #scratchbuild #ManhattanStyle #BITX #SolderSmoke #HFtransceiver #QRPSSB #directconversion #analogradio #FrequencyCounter
Bonus Episode: Scratch Building a Frequency Counter? Rex W1REX Breaks Down His X-Checker Circuit
This one wasn't planned as an episode — but it was too good not to share.
As part of our ongoing Beginner Project Series, we're scratch building a frequency counter based on Rex Harper W1REX's X-Checker kit from QRPme.com. Before we put iron to board, we sat down with Rex himself to walk through the circuit — and what came out of that conversation is exactly the kind of deep-dive explanation that doesn't show up in any build guide.
If you're following along with the Beginner Project Series and building this circuit from scratch, this video will give you a much clearer picture of what's actually happening on that board — straight from the designer himself.
Rex Harper W1REX is the one-man operation behind QRPme.com, home of the Tuna Tin 2, the Rockmite, MePADs, and dozens of other beloved QRP kits. He's been designing and kitting ham radio projects for decades and is a fixture in the QRP homebrew community.
Resources mentioned:
X-Checker kit: qrpme.com/?p=product&id=Q17
Join us as we explore how you can get involved in portable radio, QRP, and more in this episode of the All Portable Discussion Zone (AP/DZ). Every aspect of portable operations is covered in this biweekly podcast, from news and gear to achievements, the workbench, contests, awards, and beyond.
**SolderSmoke DISCORD INVITE**: discord.gg/GYVRZSBVFC
Connect with us:
* Discord: discord.gg/WVE3vVveWU
* YouTube: youtube.com/c/redsummitrf
* TikTok: @redsummitrf
* X (formerly Twitter): @NJ7V_
Support the channel:
* Buy us a Coke: buymeacoffee.com/RedSummitRF
* Red Summit RF Amazon Storefront: amazon.com/shop/redsummitrf
#apdz #SOTA #POTA #PortableOps #HamRadio #QRP #Workbench #Electronics #homebrewradio #DIYradio #testequipment #RFprojects #amateurradio #hamradiopodcast #scratchbuild #ManhattanStyle #BITX #SolderSmoke #HFtransceiver #QRPSSB #directconversion #analogradio #FrequencyCounter
