Spotter Networks Frequency's |  |
Iowa Amateur Networks Frequency's |
NWS offices around the country utilize various spotter networks for severe and other inclement weather verification and reporting. The various spotter networks are comprised of emergency management officials, law enforcement, fire fighters, EMS personnel, and road crews. We also utilize the general public with training taking place during the late winter and early spring as NWS personnel travel to various counties to provide training. A final group of spotters utilized by our NWS office are amateur radio operators. Amateur Radio Operators (HAMS) are a vital link in the spotter and communication network used by the NWS during severe or otherwise inclement weather. Not only do they report what they see with their own eyes, but they can report what others see, and also provide communications to other NWS offices should normal communication modes fail. The following graphics depict single repeaters, linked repeater systems, or a combination thereof which we utilize often. New repeaters continue to be installed by dedicated and hard-working hams to expand their networks. We also continue to learn of and put into use these new systems as soon as possible.For now, we will not list 2 meter and 70 cm repeaters outside of our 51 county warning area (depicted by the purple outline), unless they also serve some of our counties. If you notice errors or omissions, know of new repeaters that need to be added, need to change your spotter address or phone number, or just have a SKYWARN/spotting question, drop us a line at dmx.spotteradmin@noaa.gov and we take care of your request ASAP. Note: This email address is not for sending severe weather reports, but instead is for administrative tasks. For severe weather reporting via the internet, please click here. Keep in mind the maps depict approximate signal coverage with radio propagation characteristics, geography, equipment reliability, etc. all affecting coverage of a given repeater. Since many of these repeaters are linked please give them a second or two to connect. Here's a three page pdf file of the same information in a format that will print nicely on three pages. Location | Output RX | Input TX | Tx Tone | Grimes | 146.610 MHz | 146.010 MHz | 114.8 Hz | Williams | 444.500 MHz | 449.500 MHz | 151.4 Hz | Mason City | 146.760 MHz | 146.160 MHz | 103.5 Hz | Scranton | 444.300 MHz | 449.300 MHz | 151.4 Hz |
|  |  | Location | Output RX | Input TX | Tx Tone | Sheldahl | 147.075 MHz | 147.675 MHz | 114.8 Hz | Storm Lake | 146.775 MHz | 146.175 MHz | 110.9 Hz | Humboldt | 442.400 MHz | 447.400 MHz | 110.9 Hz |
Notes: The Storm Lake repeater is linked to the She Dahl repeater via the ICN while Humboldt is linked to Storm Lake via RF. | Location | Output RX | Input TX | Tx Tone | Menlo | 147.045 MHz | 147.645 MHz | 114.8 Hz | Creston | 146.790 MHz | 146.190 MHz | 136.5 Hz | Elk Horn | 444.900 MHz | 449.900 MHz | 151.4 Hz | Prescott | 145.510 MHz | MHz | 127.3 Hz | Avoca | 147.255 MHz | 147.855 MHz | 151.4 Hz | Greenfield | 444.700 MHz | 449.700 MHz | 173.8 Hz | Atlantic | 147.150 MHz | 147.750 MHz | 151.4 Hz | Clarinda | 444.750 MHz | 449.750 MHz | 127.3 Hz | Bedford | 443.700 MHz | 448.700 MHz | 136.5 Hz |
|  |  | Location | Output RX | Input TX | Tx Tone | Grimes | 443.400 MHz | 448.400 MHz | 151.4 Hz | Gilman | 444.150 MHz | 449.150 MHz | 151.4 Hz | Baxter | 444.225 MHz | 449.225 MHz | 151.4 Hz | Newton | 442.300 MHz | 447.300 MHz | 151.4 Hz | Afton | 442.400 MHz | 447.400 MHz | 151.4 Hz | Marshalltown | 443.325 MHz | 448.325 MHz | 110.9 Hz | Chelsea | 442.125 MHz | 447.125 MHz | 151.4 Hz |
| Location | Output RX | Input TX | Tx Tone | Bedford | 147.135 MHz | 147.735 MHz | 203.5 Hz | Des Moines | 146.820 MHz | 146.220 MHz | 203.5 Hz | Pella | 145.170 MHz | 144.570 MHz | 203.5 Hz | Waterloo | 444.900 MHz | 449.900 MHz | 203.5 Hz | Davenport | 146.940 MHz | 146.340 MHz | 203.5 Hz | Mason City | 147.315 MHz | 147.915 MHz | 203.5 Hz | Note #1: For local use only (no ICN access) on the Waterloo repeater, use a PL tone of 136.5. Note #2: For local use only of the Des Moines Hub, use a PL tone of 114.8. Note #3: For local use only of the Bedford repeater, use a PL tone of 127.3. Note #4: For local use only of the Davenport repeater, there is no PL tone. Note #5: For local use only of the Mason City repeater, use a PL tone of 103.5. These repeaters are linked to the main Des Moines Hub via the Iowa Communications Network fiber optic system. You must have the PL tone turned on to access the ICN Hub and the remote repeaters. |  |
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County | Organization | TX/RX | *STATEWIDE* | Iowa REACT Teams | 151.625 | *STATEWIDE* | Statewide Civil Defense Net | 154.280 |
| Quad Cities Amateur Storm |
Frequency | Input TX | Description | State | Mode |
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146.880 | 146.280 | Quad Cities Primary | Iowa | FM | 146.940 | 146.340 | Quad Cities Secondary | Iowa | FM |
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General Mobile Radio Service (GMRS) |
Frequency | Input TX | License | Type | Tone | Alpha Tag | Description | State | Mode | Tag |
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462.575 | 467.575 | WPRV616 | RMB | 114.8 PL | W BrlgtnGMRS | West Burlington Repeater | Iowa | NFM | 575 | 462.600 | 462.600 | | MB | 141.3 PL | 600GMRS | 600 GMRS | Iowa | NFM | 600 | Note: The use of a CTCSS (PL) tone is designed to help eliminate any bleedover from paging systems and intermod in metropolitan areas. If possible, leave your CTCSS (PL) decoder in open receive mode.Frequency | Type | Tone Out | Alpha Tag | Description | Mode | Tag |
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146.55000 | M | 114.8 PL | SC Primary | Many Amateur storm chasers use or monitor this frequency | FM | Ham | 146.46000 | M | 114.8 PL | SC Secondary | Alternate to 146.550 MHz. | FM | Ham | 223.52000 | M | 114.8 PL | SC 1.25Meter | Simplex | FM | Ham | 446.07500 | M | 114.8 PL | SC 70c Smplx | Simplex - (often used for cross patching to 146.550 MHz.) | FM | Ham | 446.10000 | M | 114.8 PL | SC 70cm Alo | Alternate to 446.075 MHz. | FM | Ham | 1294.55000 | M | 114.8 PL | SC 23c Smplx | Simplex | FM | Ham |
Burlington Ham Frequency's |
Output RX | Input TX | City | Tx Tone | Call Sign | County | State | Comments | 146.790 | 146.190 | Burlington | 100.0 PL | W0LAC | Des Moines | Iowa | Des Moines, Iowa County SKYWARN/CERT OPS | 147.360 | 147.960 | Burlington | 100.0 PL | WA6GUF | Des Moines | Iowa | Part of the SEITS linked system covering eastern Iowa. | 444.700 | 449.700 | Burlington | | WA6GUF | Des Moines | Iowa | |
Project Vortex 2 Frequency's | The Center for Severe Weather Research operates the Doppler on Wheels, a team of mobile weather research vehicles, including Doppler radar trucks. Frequency | Type | Tone | Alpha Tag | Description | Mode | Tag |
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161.400 | M | | Vortex DOW 1 | Radar Team Coordination Primary | FM | Federal | 161.500 | M | | Vortex DOW 2 | Radar Team Coordination Secondary | FM | Federal | 151.940 | M | | VortexTelemt | Doppler on Wheels / Tornado Pod Telemetry-Primary | FM | Other | 151.820 | M | | VortexTelemt | Doppler on Wheels / Tornado Pod Telemetry-Secondary | FM | Other | 158.400 | M | 203.5 PL | Vortex CSWR | Center for Severe Weather Research-Doppler on Wheels | FM | Other |
These research teams have their own channels to coordinate their tasks during the project. Each team has a leader who has two radios-one on the Field Coordinator's frequency and the other on their team's channel. Frequency | Type | Alpha Tag | Description | Mode | Tag |
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161.300 | M | Vortex Pod 1 | Tornado Pod Teams-Primary | FM | Other | 161.200 | M | Vortex Pod 2 | Tornado Pod Teams-Secondary | FM | Other | 151.940 | M | Vortex Pod 3 | Tornado Pod Teams-Tertiary | FM | Other | 151.700 | M | VortexMsnet1 | Mobile Mesonet Teams-Primary | FM | Other | 151.940 | M | VortexMsnet2 | Mobile Mesonet Teams-Secondary | FM | Other | 161.000 | M | VortexStick1 | StickNet Teams-Primary | FM | Federal | 160.900 | M | VortexStick2 | StickNet Teams-Secondary | FM | Federal | 173.300 | M | Vortex Drone | UAS Team-Unmanned Aerial Surveillance Drones | FM | Federal | 173.400 | M | VortexDrone2 | UAS Team-Unmanned Aerial Surveillance Drones-Secondary | FM | Federal | 160.800 | M | VortexBaloon | Photogrammetric-Weather Balloon Teams | FM | Federal |
Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag |
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151.5125 | WQLS817 | M | | Discovery Ch | Discovery Channel-Video Crews | FMN | Media | 154.5275 | WQLS817 | M | | Discovery Ch | Discovery Channel-Video Crews | FMN | Media | 158.4075 | WQLS817 | M | | Discovery Ch | Discovery Channel-Video Crews | FMN | Media | 151.905 | | M | 67.0 PL | IMAX / TIV | IMAX Film Crews-Tornado Intercept Vehicle (TIV) from 2009 | FM | Media |
National Severe Storms Laboratory-VORTEX 2 | VORTEX 2 was a massive research project during the spring of 2010, conducted by the National Severe Storms Laboratory in Norman, OK, involving weather research vehicles (including mobile radars, and mobile mesonets) across the southern plains. These frequencies may be used for smaller research projects in the future.Frequency | Input | Type | Alpha Tag | Description | Mode | Tag |
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163.225 | | M | NSSL Vortex1 | National Severs Lab Simplex Channel 1 | FM | Federal | 171.9375 | 163.225 | RM | NSSL Vortex2 | National Severs Lab Repeater Channel 2 | FM | Federal | 161.100 | | M | NSSL Vortex3 | National Severs Lab Channel 3 | FM | Federal | runs from May 1 through June 15, 2010 and involves across the southern plains. NSSL is the coordinating agency for the various participants.Travel mode is on channel one simplex (163.225MHz). When on site, a mobile repeater (Channel 2 - output 171.9375MHz) in the Field Coordinator (FC) van can be activated to aid communications between vehicles. The FC acts as the net control operator. Channel 3 (161.100MHz) is used for communications that don't involve all vehicles. |
This site was last updated
Saturday, November 14, 2020 10:58:59 PM By: Ryan Smith ©®™ |