Updated Requirements for Fixed Line-of-Sight Radio Systems in the 6425-6930 MHz Band

Overview

The ISED Standard Radio System Plan (SRSP-306.4), Issue 7, establishes the technical requirements for fixed line-of-sight radio systems operating in the 6425-6930 MHz band. This updated version replaces Issue 6 and includes critical modifications aimed at minimizing harmful interference with the Dominion Radio Astrophysical Observatory (DRAO).

Key Modifications

1. Antenna Radiation Pattern: Updates to the requirements specified in Figure 1 and Table 3 of Section 6.
2. RF Channel Bandwidths: Introduction of 60 MHz bandwidths and the removal of bandwidths less than 2.5 MHz.
3. Document Streamlining: Removal of provisions previously included in SRSP-300-GEN.
4. Editorial Enhancements: Various clarifications and improvements throughout the document.

This document aims to establish minimum technical requirements for the efficient use of the 6425-6930 MHz band by point-to-point radio systems in the fixed service, while allowing continued operation of existing systems licensed before this issue.

Key Dates

• Comment Period: October 9, 2024, to December 20, 2024.
• Transmitter Power Limit: Maximum of +55 dBW per RF channel, with strict measures to avoid interference with geostationary satellites.
• Antenna Requirements: Specifications for antenna radiation patterns in both congested and non-congested areas.

Related Documents

• SRSP-300-GEN: General technical requirements for point-to-point radio systems.
• SP 3-30 GHz: Spectrum utilization policies in the 3-30 GHz range.
• RSP-113: Application procedures for planned radio stations above 960 MHz.

Annex A

The document includes an Annex A listing RF channel center frequencies for the 6425-6930 MHz band, categorized into various channel widths (60 MHz, 30 MHz, 20 MHz, 10 MHz, and 5 MHz).

For one-way radio systems authorized before December 2006 that utilize analog modulation for television studio transmitter link (STL) services, specific channel usage is outlined, including channels B9 to B12 and B'9 to B'12, with the option to use channel B13 centered on 6680 MHz. New STL services can also utilize these channels, provided they comply with the two-way point-to-point digital requirements set forth in this SRSP.

For further details, applicable documents can be found on the Spectrum Management and Telecommunications website.

Regulatory Impact

• top_priority
• spectrum_bands
• standard_changes
• product_changes

Link to Source - https://www.rabc-cccr.ca/ised-standard-radio-system-plan-srsp-306-4-issue-7-technical-requirements-for-fixed-line-of-sight-radio-systems-operating-in-the-band-6425-6930-mhz/