Recent News
November 2026 Round Table
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Introduction to APRS with Jason, KM4ACK
DetailsWhen: Wednesday October 21stElmer Session - 6PMMeeting - 7PMWhere: https://w0tx.org/meet Topic:Introduction to APRS with Jason, KM4ACK What:Join us for an introduction to the Automatic Packet Reporting System (APRS) with special...
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October 2026 Round Table
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September 2026 Round Table
Click here for the downloadable version: w0tx.org/wp-content/uploads/2026/09/RT_SEP_26.pdf Powered By EmbedPress
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An Amateur Radio HF Channel Sounder – Bob – WB0VGD
DetailsWhen: Wednesday August 19thElmer Session - 6PMMeeting - 7PMWhere: https://w0tx.org/meet Topic:An Amateur Radio HF Channel Sounder - Dr. Bob - WB0VGD What:This presentation will provide a description of a channel...
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Antenna Masts DIY & Pre-built – Dave Casler – KE0OG – 7/15
Hi DRC Members, Let's extend a huge and open welcome to Dave Casler, KE0OG, and thank him for giving us a presentation. We can't thank him enough for this opportunity....
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RF Espionage – Orlen Wolf – WW0LF – 6/17
What: Building upon his last presentation, Orlen (WW0LF) is this evening’s presenter. He will talk about the equipment used for bug (spy hardware) detection. Orlen talks about the target of...
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Low Earth Orbit Satellite Comms – David Cherba – WZ8T- 5/20
What: Low Earth Orbit Satellite Comms - David Cherba - WZ8T- 5/20David will give us primer on his experience with low earth satellite communications.From amsat.org:One of the great features of...
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NanoVNA – a Dozen Uses for the Average Ham – Bob Mesenbrink – NB0BN – 4/15
What: NanoVNA - a Dozen Uses for the Average Ham - Bob Mesenbrink - NB0BN - 4/15 Bob will use the nanaVNA to measure everything from antennas, coax, passive components,...
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33cm License-free Fun with Meshtastic – Ryan Frederick – WR7F – 3/18
What: 33cm License Free Fun with Meshtastic - Ryan Frederick - WR7F - 3/18 An open source, off-grid, decentralized mesh network built to run on affordable, low-power devices. No cell...
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Terrestrial Navigation/Jamming in the Baltic Sea – Lars, Niklas Hehenkamp, Markus – 2/18
What: https://media.ccc.de/v/39c3-who-cares-about-the-baltic-jammer-terrestrial-navigation-in-the-baltic-sea-regionhttps://events.ccc.de/congress/2025/hub/en/event/detail/who-cares-about-the-baltic-jammer-terrestrial-navigation-in-the-baltic-sea-regionReports of GNSS interference in the Baltic Sea have become almost routine — airplanes losing GPS, ships drifting off course, and timing systems failing. But what happens when a...
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January Meeting Presentation – TBA – 1/21
What: To be announcedWhere:For remote, please go to https://w0tx.org/meet or https://meet.google.com/bsq-zrpv-jpj/, both links go to same place, for our live google meet to chat. Also streaming on https://youtube.com/denverradioclub.When:The pre-meeting Elmer...
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November Meeting Presentation – Restoring a 60 Year-Old Swan 500C Transceiver – 11/19
What: Restoring a 60 Year-Old Swan 500C Transceiver by Bob Mesenbrink NB0BNWhere:For remote, please go to https://w0tx.org/meet or https://meet.google.com/bsq-zrpv-jpj/, both links go to same place, for our live google meet to...
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September Meeting Presentation – TBA – 9/17
What: Board elections plus TBD presentationWhere:For remote, please go to https://w0tx.org/meet or https://meet.google.com/bsq-zrpv-jpj/, both links go to same place, for our live google meet to chat. Also streaming on https://youtube.com/denverradioclub,...
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August Meeting Presentation – TBA – 8/20
What: To be announced Where:Please go to https://w0tx.org/meet or https://meet.google.com/bsq-zrpv-jpj/, both links go to same place, for our live google meet to chat. Also streaming on https://youtube.com/denverradioclub.When:The pre-meeting Elmer session and...
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July Meeting Presentation- Small Transmitting Loop Antennas – 7/16
What: Small Transmitting Loop Antennas I have used several homebrew small transmitting loop (STL) antennas on 40-160 meters. The two-turn STL is only 4.5 feet in diameter and is used...
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June Meeting Presentation – 6/18
What:TBAWhere:Please go to https://w0tx.org/meet or https://meet.google.com/bsq-zrpv-jpj/, both links go to same place, for our live google meet to chat. Also streaming on https://youtube.com/denverradioclub.When:The pre-meeting Elmer session and meeting is scheduled...
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May Meeting Presentation – 5/21
What:TBAWhere:Please go to https://w0tx.org/meet or https://meet.google.com/bsq-zrpv-jpj/, both links go to same place, for our live google meet to chat. Also streaming on https://youtube.com/denverradioclub.When:The pre-meeting Elmer session and meeting is scheduled...
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April Meeting Presentation – 4/16 – RT Systems Programming Software – Karin Thompson – KD4DXX
What:Karin is the General Manager at RT Systems, she will be giving us an intro and background of the RT Systems organization, as well as dive into the software and...
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March Meeting Presentation – 3/19 – RF Snooper Probe – John Portune – W6NBC
What:Easy to Build Inexpensive "Snooper" Probe for Detecting and Solving Stray RF on Your Coax and in Your ShackIncludes a revealing little-known new view of baluns. You may be surprised...
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Your help is wanted
We are seeking your help, please visit w0tx.org/volunteer for further info and to sign-up.
We are looking for Tower Climbers, EmComm Coordinators, Program Coordinators, Round Table Editors, Elmers/Education Coordinator, and Graphic Designers.
We are looking for ideas or presenters for future presentations. If you have topic suggestion or presenters you would like to see or if you yourself would like to present please get in contact with us via w0tx.org/contact-us/.
Recent For Sale/Wanted
3 KW Antenna Tuner
The Amp Supply Co. AT-3000 is a rare, heavy-duty manual amateur radio (ham) antenna tuner (antenna matching unit) modeled after…
10/30/2026
Total views: 8
Price: $150.00
Total views: 8
Price: $150.00
Radios
Yaesu FT-736R - 144/430/1.2Ghz Item never got used! Installed antennas and the next day, HOA said I had to REMOVE…
07/02/2026
Total views: 55
Price: $425.00
Total views: 55
Price: $425.00
A Complete Satellite station
A Complete working satellite station based on a Yaesu FT-736R. Here is a list of all the components included in…
06/25/2026
Total views: 69
Price: $1,555.00
Total views: 69
Price: $1,555.00
Propagation Information
The Current Grey Line Propagation Map
Thanks to N0NBH, and John Walker for providing these images.
Ham Radio Crosswords
More at w0tx.org/crosswords.