ILLINOIS REPEATER ASSOCIATION
COORDINATION POLICY and GUIDELINES
Revised October 1, 2006
The Illinois Repeater Association, Inc. (IRA) is a charter member of the National Frequency Coordinators’ Council, Inc.(NFCC), a nation-wide organization of repeater coordination entities with the purposes of providing national Amateur Radio frequency coordination standards, and representing the interests of these entities before the Federal Communications Commission (FCC) and the American Radio Relay League, Inc. (ARRL). The IRA is also a long-standing member of the Mid-America Coordination Council, Inc. (MACC), which is a 21 State consortium of repeater coordination entities. These entities have banded together and agreed to follow the same detailed bandplans and standards. Each entity retains the coordination function and duties, carried out under the umbrella of the MACC. The goal of the Illinois Repeater Association, Inc. shall be to make the most efficient and interference-free use of our limited frequency spectrum for the benefit of the largest possible number of Amateur Radio licensees. Further, it shall be the goal of the IRA Frequency Coordinator, under the guidance of the IRA Board of Directors, to provide assistance and guidance in the frequency selection process in order to encourage operation within the spirit of the Amateur Radio Service since nothing except mutual cooperation and common sense prevents any licensed Amateur from establishing a repeater station on any frequency he chooses. This is a voluntary effort which relies on voluntary cooperation and your support is needed and appreciated. The objective of this frequency coordination policy shall be to assist in the selection of a frequency according to the repeater bandplans adopted by the Mid-America Coordination Council, Inc. (MACC) using NFCC coordination standards. In the process of frequency coordination, the coordinator will strive to minimize interference between the various repeater systems and their users in, and adjacent to, the states that are served by NFCC-recognized Amateur Radio frequency coordination entities. Even though the objective is to minimize interference, no promises or guarantees of interference-free frequencies can be made. If you plan to operate an Amateur Radio station as a repeater or an auxiliary station within the State of Illinois, you should coordinate the frequencies with the Illinois Repeater Association. On April 21, 1986, the FCC adopted a Report and Order that amended Part 97 of the FCC Regulations governing the Amateur Radio Service. They made non-coordinated repeaters primarily responsible to resolve interference associated with coordinated repeaters. This permits local coordinators and the FCC to consider technical alternatives, questions of equity, and spectrum efficiency in reaching the most reasonable solution. The frequency coordination process must operate by a set of policies and procedures that are applied equitably to all holders of coordination and those wanting coordination. That is purpose of this document. These policies and guidelines are open to constructive criticism by repeater owners and trustees and other parties interested in spectrum management. However, the power to amend these procedures and policies rests with the Board of Directors of the Illinois Repeater Association, Inc. This edition supercedes all previous editions, addendums, and appendices.
Holder Of Coordination: The Illinois Repeater Association grants frequency coordinations to a Holder Of Coordination (HOC) as defined below. Frequency coordinations are not the property of the Holder Of Coordination and therefore cannot be unilaterally transferred from one holder of coordination to another without the prior approval of the IRA Frequency Coordinator. A request for such a transfer may or may not require a new frequency coordination as determined by the frequency coordinator. Such transfers, if deemed technically workable, must be approved, in writing, by the IRA Frequency Coordinator.
HOC - Individual: In the case of an individually owned repeater, that single FCC licensed person is both the Trustee as defined by the FCC and is recognized by the IRA as the Holder Of Coordination. As such, that individual is solely responsible for complying with all FCC regulations and statutes, and all IRA imposed frequency coordination requirements.
HOC - Organization: Is a structured group of 2 or more individuals. Such a group, or association, may or may not be formally incorporated, but does operate under some form of bylaws, constitution, or other written agreement. The FCC requires that a single licensed individual be the Trustee who shall be responsible for complying with all FCC regulations and statutes. The IRA recognizes the organization as the Holder Of Coordination and shall maintain correspondence with the organization's president or duly authorized correspondent. Failure to supply proper written documentation of the organization's status and authorized correspondent shall automatically invalidate the frequency coordination.
Organizations holding IRA frequency coordinations shall keep the IRA Secretary/Treasurer and IRA Frequency Coordinator informed as to who are their current officers along with their addresses and telephone numbers. All correspondence from these organizations should be on the organization's letterhead and signed by the authorized correspondent.
Any request for a change of frequency coordination shall be on the organization's letterhead and shall refer to specific action(s) approved by the organization, and shall be signed by its president or authorized correspondent.
AGL: Is a reference of antenna height Above Ground Level as measured directly below the antenna to the actual ground. This is the total of tower, and/or mast, and building height.
HAAT: Is a reference of antenna Height Above Average Terrain that is an average of surround ground elevations within a XX radius of the antenna.
No frequency coordinations will be issued which conflict with applicable FCC Rules and Regulations. The following coordination parameters for geographical spacing are being used as a guideline as displayed in the tables below: Note: The following tables are a summary,for more detail click here
Geographical Spacing Guidelines
ADJ. CHANNEL SPACING
ADJ. CHANNEL SEPARATION
The FCC has eliminated specific power limitations of repeaters according to Height Above Average Terrain (HAAT) and left these decisions up to the local coordinating entity. The IRA tries to adhere to the above standards on geographical spacing in combination with the old FCC repeater power rules as listed in the table below. However, geographical spacing may be reduced, using more limited parameters described elsewhere in this document. (See Table 4)TABLE 2
Maximum Effective Radiated Power (ERP) For Frequency Bands
Above 29.5 MHz
Above 420 MHz
Above 1240 MHz
Up to 105 Ft
105 to 525 Ft
525 to 1050 Ft
Above 1050 Ft
IRA coordinates repeater and link frequencies on the basis of making maximum frequency utilization of the various bands. The following bandplans have been announced. All coordinations are made according to accepted bandplans.
29.620 - 29.680 MHz
52.810 - 53.990 MHz
145.110 - 145.490 MHz
146.610 - 147.00 MHz
147.00 - 147.390 MHz
223.860 - 224.980 MHz
440.000 - 444.975 MHz
906.000 - 909.000 MHz
1282.000 - 1288.000 MHz
Reduced Co-Channel Spacing
CONDITIONS OF COORDINATION
a. Written notification, from the Applicant, is required to be sent to the IRA Frequency
Coordinator when the frequencies are placed in use. If the system is not in operation at the
end of the construction period, the coordination is withdrawn and the frequency reissued.
b. A sixty (60) day construction extension may be requested in writing from the Frequency
Coordinator if extenuating circumstances arise. Reasons need to be outlined in detail
as to why extra time is needed.
c. The total length of time for construction may not exceed 240 days. The frequency
assignment will be withdrawn if not completed at the end of this extended period.
WILLFUL FALSE STATEMENTS IN COORDINATION PROCEDURES
This procedure is intended to allow a repeater owner to work out an acceptable coordination and have it verified by the IRA. It provides a means to gain full coordination status on a frequency pair of his choice, by obtaining the written agreement of all involved parties. The responsibility for obtaining written agreement from all involved parties rests solely with the repeater sponsor. The IRA's involvement at this stage will be to provide the owner with a list of affected co-channel, adjacent channel, and - if required - adjacent State Frequency Coordinators.
It should be noted that the other involved parties are under no obligation to support or agree to the proposed new system or to justify or explain any objections they may have. They may say no for any reason or they may impose certain conditions or limitations on the new repeater in order to obtain their approval. Such conditions may include reduced deviation, limited transmitter power, directional antenna patterns, coded access, etc. Any conditions that can be agreed upon between the new owner and the other involved parties will become conditions to the coordination.
a. The new system has been in full operation as described in the coordination for a period of not less than 90 days.
b. No objections or complaints of interference have been received from any involved party.
REPEATER OPERATION CANNOT BEGIN UNTIL AFTER A WRITTEN COORDINATION HAS BEEN ISSUED TO THE OWNER BY THE IRA.
a. If the operation is in violation of applicable FCC rules.
b. If no working system is operational within 6 months of coordination (may be extended to 8 months total on request).
c. If a repeater is inoperative for more than 180 days. This period may be renewed and extended at the discretion of the IRA board.
d. If the station location, frequency, sponsor, antenna height, ERP, or other provisions of coordination are changed without notifying IRA or requesting recoordination.
e. If the sponsor fails to respond to written inquiries from IRA within a reasonable period of time. All IRA correspondence will be addressed to the most recent address of record. It is the ultimate responsibility of the owner/trustee to keep IRA informed of the correct mailing address.
COORDINATION WITHDRAWAL PROCEDURES
Frequency Coordination Agreement Violation Notice
INTERFERENCE RESOLUTION POLICY
a. Voluntary cooperation with IRA coordination efforts.
b. Use of the minimum possible power to maintain communications, both at the repeater site and on the part of the users.
c. Use of receivers having performance consistent with today's conditions, both at the repeater and on the part of users. This will help prevent many de-sense, intermodulation, and adjacent channel problems.
4. Harmful interference is defined as: "interference which seriously degrades, obstructs or repeatedly interrupts the operation of a radiocommunication service" (FCC 97.3(a-21)) when operating within the coordinated service of the system in use. No interference protection can be provided to repeater users outside the coordinated service area of any repeater.
5. The Illinois Repeater Association adheres to the following policy for dealing with interference between repeaters, owners, trustees, and users. This policy is in accordance with NFCC guidelines, and FCC rulings and guidelines.
a. If an uncoordinated repeater cause harmful interference to a coordinated repeater, the primary responsibility for correcting the interference lies with the trustee of the uncoordinated system.
b. If both systems are coordinated, the primary responsibility for correction of interference lies with the most recently coordinated.
c. If the alleged interfering repeater is outside of the IRA coordination service area, the IRA Frequency Coordinator and/or IRA Technical Committee Chairman will work with their counterparts in the adjoining state and follow the guidelines above.
6. If a repeater owner/operator changes any of the parameters on which coordination was based and harmful interference results, that owner/operator shall be responsible for correcting the interference.
INTERFERENCE RESOLUTION PROCEDURES
SNP FREQUENCY PAIRS
January 25, 1997, Updated October 1, 2006
a. 30 miles minimum separation for co-channel assignment
b. 50 ft. maximum AGL antenna height
c. 50 watts maximum ERP
d. Mandatory CTCSS or equivalent encode/decode system
e. 5 miles minimum separation for 1st adjacent channel assignment
f. 1 mile minimum separation for 2nd adjacent channel assignment
Lawrence (Larry) J Schroeder KA9KDC
Illinois Repeater Association, Inc.