The links below are to articles, web sites, or download materials that provide information concerning construction projects, training, technical briefs, radio procedures and operations.

Programming Files for Radios (Codeplugs)

The standard W0TLM frequency list includes many of the common 2m / 70cm simplex and repeater frequencies for our area. Revision 10 was created on 06 April 2020 to track a change to the N0XLF repeater frequency. This repeater will be moving to 147.075 MHz, + offset, 131.8 Hz tone. The existing N0XLF memory has been renamed to OLD XLF, to allow for easy migration. Use the OLD XLF memory until the repeater frequency change has been implemented, then use N0XLF.

Chirp radio programming software is available at:

PDF file for human consumption
MS Excel file
CSV file for importing into Chirp software. Does not include notes from the Excel file.
IMG file for Baofeng UV-5R, for use with Chirp software.
IMG file for Yaesu FT-4XR, for use with Chirp software. (errors corrected on 13 April 2020)



Meeting Presentations

The links below are to downloads of presentation materials or other links from our meeting and special event educational forums. You may also enjoy our YouTube channel that features videos of recent technical presentations by our membership on a variety of Amateur Radio topics.

Title Presenter Meeting Date Comments
Ham Stations grounding for Lightning Protection  Mike Hoskins, W0MJH Jan 2015  
Beyond the HT: Your Next Radio 

Al Andzik, WB0TGE

Bob Witte, K0NR

Feb 2015  
Nothing but NET  Dan Oldfield, N0OLD Apr 2015 Information on the W0TLM local net
Getting Ready For Tech Field Day  Bob Witte, K0NR Jun 2015  
Emergency Power for Ham Radio  Mike Hoskins, W0MJH Nov 2015  
Operating from other countries  Bob Witte, K0NR Apr 2016  
DMR: The Fastest Growing Digital Format on VHF/UHF  Bob Witte, K0NR Mar 2017  
Stealth Antennas for Ham Radio  Chip Fleming, K0CHP Jun 2017  
Digital Modes - WinLink  Barry Brock KD0RQU   Fun With HT’s !!
And Digital Modes
Software and Programs for the Shack  Greg Smith W0GAS Jan 2019  
Using Winlink  Armstead Feland, AE5OQ Feb 2019 How to send email messages via amateur radio
How to Buy and Sell Used HF Radio Equipment

Paul Brown,AC5S

Oct 2019  
CW for the Radio Amateur Greg Smith, W0GAS Nov 2019 Interesting background on Morse Code and how to get started with CW operating.

nanoVNA - compact vector network analyzer



Chip Fleming, K0CHP Apr 2020 The nanoVNA is an affordable Vector Network Analyzer capable of making reflection and transmission measurements (antenna SWR, impedance, etc.)