Ohio Hamfests 2022

From Ohio Ares District 3 05/20-22/2022 – Dayton Hamvention Location: Greene County Fairgrounds, OH Sponsor: Dayton Amateur Radio Association Website: https://hamvention.org 05/28/2022 – Scioto Valley Amateur Radio Club Hamfest Location: Piketon, OH Sponsor: Scioto Valley Amateur Radio Club 06/04/2022 – FCARC Summer Hamfest Location: Wauseon, OH Sponsor: Fulton County Amateur Radio Club Website: https://k8bxq.org/hamfest 07/09/2022 – Mansfield Mid Summer Trunkfest Location: Mansfield, OH Sponsor: Intercity Amateur Radio Club Website: http://www.w8we.org 07/17/2022 – Van Wert Hamfest Location: Van Wert, OH Sponsor: Van Wert Amateur Radio Club Website: http://W8FY.ORG 08/06/2022 – Columbus HamfestLocation: Grove City, OHSponsor: Aladdin Shrine Audio UnitWebsite: http://columbushamfest.com 08/13/2022…

Crypto Museum – Spy Sets

Article Link Spy radio sets – Clandestine radio equipment Ever since the invention of radio, people have been trying to use transmitters and receivers for secret communication. In times of war, spies, agents and the resistance would use such secret communication to contact their home office or government and send important information to them. Such secret communication systems are often called Spy Radio Sets, or Spy Sets for short. We are well aware that the term Spy Sets is not always correct. The equipment described in this section was also used by secret agents, Special Forces (SF), embassies, diplomatic services,…

2022 ARRL Field Day June 25-26

ARRL Link What is ARRL Field Day? Produced by ARRL, the national association for amateur radio http://www.arrl.orgARRL Field Day is the single most popular on-the-air event held annually in the US and Canada. On the fourthweekend of June of each year, thousands of radio amateurs gather with their clubs, groups or simply with friends tooperate from remote locations. Field Day is a picnic, a campout, practice for emergencies, an informal contest and, most of all, FUN! It is a time where many aspects of Amateur Radio come together to highlight our many roles. While some will treat it as a…

Raspberry Pi Amateur Radio Digital Clock

Overview Amateur Radio Operators (aka HAM Radio) use 24 hour UTC (Universal Coordinated Time) for much of their operation. I decided to build a digital clock using the low-cost TM1637 4 digit displays and a Raspberry Pi Zero W instead of just a GUI clock. (Hardware is fun!) The TM1637 driven display has four 7 segment leds with a center colon “:” between two sets of digits. It requires two wires to drive the display plus 5V + and Ground for a total of 4 wires. For this particular project, I wanted the Raspi to get its time from NTP…