MARS-Amateur Radio Interoperability Exercise to Test “Very Bad Day” Scenario: From October 30 through Novembe... https://t.co/0Dpnd1etc1

— ARRL (@arrl) October 19, 2016

An Amateur Radio-military interoperability exercise will take place October 31 and November 1. The event will begin at 1200 UTC on October 31 and continue through 2359 UTC on November 1 on 60 meter channels 1-4—5.3305 MHz, 5.3465 MHz, 5.357 MHz, and 5.3715 MHz, respectively.

During this exercise, military stations will attempt to make radio contact with stations in as many of the 3007 US counties as possible. Radio amateurs providing “county status” information will receive a US Department of Defense “interoperability QSL card.”

Contact the Military Auxiliary Radio Service (MARS) for more information.

(From: ARRL: Amateur Radio-Military Interoperability Exercise Set for October 31-November 1)