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Utah VHF Society Frequency Coordination

Utah VHF Society Frequency Coordination. Repeaters are on a fixed frequency and cannot change channels. Coordination of Repeaters eliminates interference to users. Co-Channel repeaters are separated by a distance great enough to avoid interference. Utah is on a 20 khz band plan for 2 meters.

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Utah VHF Society Frequency Coordination

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  1. Utah VHF SocietyFrequency Coordination • Repeaters are on a fixed frequency and cannot change channels. • Coordination of Repeaters eliminates interference to users. • Co-Channel repeaters are separated by a distance great enough to avoid interference. • Utah is on a 20 khz band plan for 2 meters

  2. Utah VHF SocietyFrequency Coordination • Works with coordinators in adjacent States to select best repeater frequencies to avoid interference. • Makes decisions about coordinating a new repeater from data that has been submitted by repeater owners of existing ones. • Submits its database to the ARRL every year for the ARRL Repeater Directory.

  3. Utah VHF SocietyFrequency Coordination • Repeaters on High Mountain Tops are given the greatest amount of coverage area protection. • Repeaters located at Valley locations are given small coverage area protection.

  4. Utah VHF SocietyFrequency Coordination • Frequencies not used within 6 months will be subject for reassignment

  5. Utah VHF SocietyFrequency Coordination • Lowest Frequency Repeater 29 Mhz 10M • Highest Frequency Repeater 2.4 Ghz ATV • Lowest Elevation Repeater is in St George at 2500 Ft. • Highest Elevation Repeater is at Snowbird at 11,000 Ft.

  6. Utah VHF SocietyFrequency Coordination • Examples of Co-Channel Frequency Coordination and coverage plots • A proposed repeater in the Kingman, Az area was proposed on the same frequency as one at Blowhard Mtn. east of Cedar City, Utah. It was found that there were many coverage areas that overlaped between them which would be a cause for interference to users of both repeaters.

  7. Blowhard Utah 448.650 coverage

  8. Kingman Arizona 448.650 coverage proposed

  9. UTAH VHF SOCIETY FREQUENCY COORDINATION FORM FOR 2000-2001 Date Sent________________ Coordination Number______________________ Date Received____________ Approval_________________________________ Club or Organization Name__________________________________________ Contact or Trustee__________________________Call___________________ Address____________________________________________________________ State______________ Zip_________________ EMAIL_____________________ Phone # Home________________________ Work__________________________ Alternate Contact__________________________________________________ Phone # Home________________________ Work__________________________ This Request is for: Repeater____Control____Link____DIGI____ BBS____Remote Base____ATV____Other_________________________________ Existing____New____ Existing Call Sign___________________________ Input Frequency________________Output Frequency____________________ Control Frequency______________Link Frequency______________________ Site Location_________________________Nearby City__________________ Describe expected coverage_________________________________________ ___________________________________________________________________ Latitude_____________Longitude_________________Elevation___________ Antenna Height above Ground_____________Antenna HAAT_______________ Antenna Gain______DB Omni____ Directional____ Main Lobe___________ Transmitter Output Power___________ Antenna ERP____________________ Antenna Polarization_________Transmitted ERP_______________________ Receiver Antenna Gain_____DB Omni_____ Directional_____ Lobe______ Receiver Antenna Height above Ground_________________ HAAT_________ Transmitter Type________________________ Power Out_________________ Receiver Type___________________________ Sensitivity_______________ Control Receiver Type___________________ Sensitivity_______________ Duplexer Model_________________ Insertion Loss___________________DB Open Access?_____________________________ Controlled Access?_______________________(ARES, Emergency, ETC) Restricted Access?_________________ PL Tone,Burst,DTMF____________ Autopatch Open access?_________________ Closed access?___________ Autopatch access code_______________ Disconnect code_______________ Direct access to Law Enforcement? (911)____________________________ Emergency Power capability?________________________________________ Linked to other systems? Describe__________________________________ ___________________________________________________________________ Publish above information in Directory? ___________________________ Temporary Location testing phase date______________________________ Installation at permanent site date________________________________ Important Note: Frequencies coordinated by the Utah VHF Society shall be put into operation within three (3) months, otherwise they are subject to reassignment.

  10. Instructions (IMPORTANT!): - Please mail a signed copy of this form to the frequency coordinator. - Place a * by any confidential information. - Please attach a "system network diagram" which shows all frequencies that the planned system will operate on and their points of communications. Show omni or directional antennas. - Show expected coverage area on a map. - Important note: Frequencies coordinated by the Utah VHF Society shall be put into operation within 3 months, otherwise they are subject to reassignment. Applicant(s) MUST read the following document: "Utah VHF Society: The Policies of the Frequency Coordinator" http://www.ussc.com/~uvhfs/coordpolicies.html It is also strongly suggested that the applicant read all of the following online documents: "Utah VHF Society: Frequency Coordination" http://www.ussc.com/~uvhfs/frqcoord.html "Utah VHF Society Bylaws" http://www.ussc.com/~uvhfs/bylaws61.html "Utah VHF Society: VHF/UHF Bandplan" http://www.ussc.com/~uvhfs/bandplan1.html "Utah VHF Society: Frequency Coordination FAQ" http://www.ussc.com/~uvhfs/freqfaq1.shtml "Utah VHF Society: So You Want To Put Up A Repeater" http://www.ussc.com/~uvhfs/wantrptr.html

  11. An Actual Repeater Application Received

  12. So, you want to put up a repeater?" or "I have a lot of time to kill and a big wad of cash burning a hole in my wallet..."

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