SB QST @ ARL $ARLB079 ARLB079 League Opposes LA County Experimental Video Proposal ZCZC AG79 QST de W1AW ARRL Bulletin 79 ARLB079 From ARRL Headquarters Newington CT September 24, 1999 To all radio amateurs SB QST ARL ARLB079 ARLB079 League Opposes LA County Experimental Video Proposal The ARRL has asked the FCC to deny an experimental license application by Los Angeles County, California, to develop a public safety video system on the 2.4 GHz band. The LA County proposal, filed August 9, seeks FCC authorization to develop an experimental system using four 10-MHz channels to transmit video images from helicopter-borne cameras to five remote receiving sites with active tracking antennas. The signals then would be retransmitted via terrestrial links to the public safety agencies involved. In its objection, filed September 23 with the FCC, the League called the LA County proposal a ''foot in the door'' toward gaining a permanent berth in the 2.4 GHz band. ''It is obvious from the experimental proposal that the County wishes to construct the entire system and then simply stay there,'' the League said. The ARRL said the FCC should authorize nothing more than a single 10-MHz video channel for a single transmitter aboard a single helicopter, to allow interference studies to be conducted. LA County already is licensed for video operations on a single 2.4 GHz channel but says it encounters operational conflicts with broadcasters. The proposal targets the 2402-2448 MHz band, characterizing it as ''underutilized'' and asserting that current occupants--including Amateur Radio and industrial, scientific and medical instrumentation--would not suffer harmful interference. Amateurs have a primary domestic allocation at 2402-2417 MHz. The League's objection said LA County's 2.4 GHz monitoring study was ''significantly flawed'' and ''woefully insufficient,'' and that LA County would be unable to avoid causing ''constant, harmful interference'' to incumbent users. Citing ATV repeaters and video links as well as proposed amateur satellite operation, the League said, the 2.4 GHz band enjoys significant use by the LA area Amateur Radio community. The League said these systems, and those of other amateur users, would be ''seriously degraded or displaced'' by deployment of the proposed experimental system. The decision to grant the proposed experimental license is up to the FCC Office of Engineering and Technology's Experimental Licensing Division. In making its decision, however, the OET is expected to consult with the Wireless Telecommunications Bureau, which oversees Amateur Radio and the other affected services on 2.4 GHz. In a separate, but related, filing on September 1, Los Angeles County and the cities of Los Angeles, Long Beach and Burbank requested a declaratory ruling from the FCC to ''clarify its rules to facilitate public safety operations on the 2450-2483 MHz band'' and to explore other spectrum allocations ''to accommodate the growing demand for public safety airborne operation.'' NNNN /EX