Official Observers

Official Observers (OO) Responsibilities

The Amateur Auxiliary of the FCC

ARRL Observer Intruder Monitoring System


  • Ryan D. Dahlberg, NØOJ

    County: Douglas
    Division: Rocky Mountain Section: Colorado
    Official Observer – Start: 2008-04-29

  • Berry T. Kroeger, NØOYM

    County: Weld
    Division: Rocky Mountain Section: Colorado
    Official Observer – Start: 2003-07-18

  • Bryon Paul Veal, NØAH

    County: Douglas
    Division: Rocky Mountain Section: Colorado
    Official Observer – Start: 2010-03-01


Colorado Section Mourns the Loss of Our Long-Time OOC

Deep sadness prevails at the passing of a passionate, dedicated woman and loving wife.  Karen Kay Schulkarentz left her human and feline communities unexpectedly on the morning of May 18, 2017 at Cherry Creek Nursing Center.  Karen was born in Denver on January 15, 1943. She retired from Qwest Communications after 35 years of dedicated service.  Karen is survived by her brothers, Kelly and Kevin, of Washington state.   Her soul mate, Glenn E. Shultz, preceded her in death on October 23, 2012.  They were married for 30 years and shared interests in ham radio, operating a fully licensed station in the Aurora area and training many operators.  Karen and Glenn managed the Mile High Volunteer Emergency Team who maintain emergency communication equipment and procedures.  They were together Official Observer Coordinators ( OOC ) for Colorado ham radio.  Another shared interest was gardening, tending a nationally recognized prize winning day lily garden of over 3000 varieties.   Karen was also dedicated to helping cats in need.  Proceeds from annual open garden showings aided cat shelters in Aurora.   She also graciously accepted needy cats into her home.  Karen was known locally as ‘The Cat Lady’.  Donations will be accepted at Angels With Paws Cat Adoption and Shelter.  Donations may also be made to Aurora Repeater Association & Mile High Volunteer Examiners Team.

A brief public internment and gathering will be held on Tuesday, May 30, 2017 at 3PM at Montview Boulevard Presbyterian Church in the Garden Columbarium at 1980 Dahlia St., Denver, 80220.  The public is invited to intend. A brief gathering of Karen’s cat-loving friends will be held at The Cat Lady’s Garden on Memorial Day at 11 AM.  Rest in peace KAØCDN and WØIJR.


IARU Monitors Report Intruders on Several HF Bands

The International Amateur Radio Union Monitoring System (IARUMS) continues to observe and log unauthorized operations that intrude on Amateur Radio allocations. For example, the May 2013 IARUMS Region 1 (Europe) Newsletter reports an over-the-horizon (OTH) radar operating in Iran daily on 10 meters (26 to 30 MHz), transmitting bursts with 307 and 870 sweeps per second, 60 kHz wide and often jumping, covering 700 kHz and more. IARUMS Region 3 (Oceania) volunteers also have reported hearing the OTH interference from Iran. Regulatory agencies in Switzerland and Germany have filed complaints without effect. IARUMS volunteers in Region 1 also report daily BPSK military traffic from Ukraine on 15 meters (21,058, 21,060 and 21,062 kHz). German authorities have formally complained. DGØJBJ reports having observed 11 OTH radars on 20 meters, 65 OTH radars on 15 meters and 30 OTH radars on 10 meters — not including the OTH radars from Iran. Other reported intruders include a Russia Air Force signal on 3531.0 kHz, identifying as REA4 (A1A) at 2040 UTC. IARUMS Region 3 volunteers further report ongoing “illegal use of 10 meters for local short-range communications in a number of Asian countries.” Radio amateurs in IARU Region 2 (the Americas) may report suspected intruders on exclusive Amateur Radio allocations to the ARRL.



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