The Mercer Island Radio Operators (MIRO) is the volunteer team that provides back-up communications for the City of Mercer Island and its Police and Fire Departments in the event of natural or man-made emergencies.
MIRO operates under the authority of the City of Mercer Island Department of Emergency Management.
MIRO is one of Mercer Island’s Emergency Preparedness Volunteer Teams, and not a “ham radio club.”
Emergency Practice Net: Second Thursday of the month at 7:00 PM
The net is conducted on the MIRO VHF repeater frequency of 147.160 MHz positive offset tone 146.2 Hz. The check-ins are by assigned neighborhood region. After announcements the net shifts to the UHF repeater 440.150 MHz positive offset tone 103.5 for a role call of those who have checked in on VHF. The purpose is to practice shifting frequencies.
In the event of a repeater failure, the net will switch to the simplex frequency of 147.440 MHz.
Monthly Meeting: Third Thursday of the month at 7:00 PM
The MIRO meetings are typically held at Mercer Island Fire Station 91 (North Fire Station), 3030 78th AVE SE, Mercer Island WA 98040.
All MIRO members, prospective hams, and visitors are encouraged to attend. The monthly MIRO Newsletter will specify meeting location and subject.
Repeaters and Operating Frequencies
|2 Meter Repeater (VHF)||147.160 MHz, +0.6 MHz offset, 146.2 Hz tone|
|70 Centimeter Repeater (UHF)||440.150 MHz, +5 MHz offset, 103.5 Hz tone|
|2 Meter Simplex||147.440 MHz|
|2 Meter Simplex||146.600 MHz|
MIRO Winlink Support
SYSOP: MIKE SEDGWICK K7PI – firstname.lastname@example.org, Cell phone: (206) 228-1792
Effective January 2020
|Frequency (MHz)||Data Rate (baud)||Callsign-SSID||Antenna|
|Winlink Address||Location||Phone Number|
|W7MIR@Winlink.org||EOC radio room at City Hall||(206) 275-7630|
|W7MIR-7@Winlink.org||Radio room at MICEC (Mercer Island Community Center)||(206) 275-7875|
Note: Winlink transmitted or destined messages require “//WL2K” in the subject line to avoid being screened out by the Winlink Spam filter.