https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&feed=atom&action=historyNationwide Public Safety Interoperability - Revision history2024-03-28T08:52:03ZRevision history for this page on the wikiMediaWiki 1.16.5https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15953&oldid=prevR4002: /* Federal Common Use Frequencies */2024-02-22T14:07:51Z<p><span class="autocomment">Federal Common Use Frequencies</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 14:07, 22 February 2024</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*27.585 MHz</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*27.585 MHz</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>These frequencies are limited to 5 watt power output, 6 kHz bandwidth. A3E, A2A and A2D emissions are allowed. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>These <ins class="diffchange diffchange-inline">[[11_meter#Legal_Users_of_the_25-30_MHz_Spectrum|27 MHz]] federal government </ins>frequencies are limited to 5 watt power output, 6 kHz bandwidth. A3E, A2A and A2D emissions are allowed. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The NTIA lists these in kHz notation, so 27575kHz and 27585kHz. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The NTIA lists these in kHz notation, so 27575kHz and 27585kHz. </div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15949&oldid=prevR4002: /* VHF high band VHF band */2024-02-22T14:02:24Z<p><span class="autocomment">VHF high band VHF band</span></p>
<table style="background-color: white; color:black;">
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<td colspan='2' style="background-color: white; color:black;">Revision as of 14:02, 22 February 2024</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*169.5375 MHz - NC 1/IR 5 - Incident Response Calling (simplex or repeater paired with 164.7125 MHz)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*169.5375 MHz - NC 1/IR 5 - Incident Response Calling (simplex or repeater paired with 164.7125 MHz)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*170.0125 MHz - IR 1/IR 6 - Incident Command (simplex or repeater paired with 165.2500 MHz)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*170.0125 MHz - IR 1/IR 6 - Incident Command (simplex or repeater paired with 165.2500 MHz)</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>*170.4125 MHz - IR 2/IR 7 - Medical Evacuation Control (simplex or repeater paired with 165.9625 MHz) </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>*170.4125 MHz - IR 2/IR 7 - Medical Evacuation Control (simplex or repeater paired with <ins class="diffchange diffchange-inline">[[VHF_LADD|</ins>165.9625 MHz<ins class="diffchange diffchange-inline">]]</ins>) </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*170.6875 MHz - IR 3/IR 8 - Logistics Control (simplex or repeater paired with 166.5750 MHz)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*170.6875 MHz - IR 3/IR 8 - Logistics Control (simplex or repeater paired with 166.5750 MHz)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*173.0375 MHz - IR 4/IR 9 - Interagency Convoy car-to-car (simplex or repeater paired with 167.3250 MHz)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*173.0375 MHz - IR 4/IR 9 - Interagency Convoy car-to-car (simplex or repeater paired with 167.3250 MHz)</div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15777&oldid=prevR4002: /* Federal Common Use Frequencies */2024-02-08T15:42:35Z<p><span class="autocomment">Federal Common Use Frequencies</span></p>
<table style="background-color: white; color:black;">
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<td colspan='2' style="background-color: white; color:black;">Revision as of 15:42, 8 February 2024</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*6K00A3E - [[AM]] voice (full carrier AM with both [[SSB|sidebands]]), regular AM radiotelephony </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*6K00A3E - [[AM]] voice (full carrier AM with both [[SSB|sidebands]]), regular AM radiotelephony </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>The 27.575 MHz and 27.585 MHz frequencies are [[11_meter#Legal_Users_of_the_25-30_MHz_Spectrum|allocated]] to provide U.S. Government short range voice radio communications, radio signaling, remote control of objects, devices, telemetry [[HF_pagers|links]], data links and other similar purposes. NTIA regulations specifically mention the use of [[FCC]] type-accepted [[CB#US_.22FCC.22_.22CEPT.22_or_.22mid_band.22_CB_Frequencies|Citizen's Band radio]] equipment - indicating that the federal government expects these frequencies to be used with modified [[11_meter|11 meter]] CB radio equipment, modified [[Remote_Control#26.2F27_MHz_27MHz_26-28_MHz_RC_Frequencies|RCRS]] equipment and/or modified 10 meter transceivers (export radios). </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>The 27.575 MHz and 27.585 MHz frequencies are [[11_meter#Legal_Users_of_the_25-30_MHz_Spectrum|allocated]] to provide U.S. Government short range voice radio communications, radio signaling, remote control of objects, devices, telemetry [[HF_pagers|links]], data links and other similar purposes. NTIA regulations specifically mention the use of [[FCC]] type-accepted [[CB#US_.22FCC.22_.22CEPT.22_or_.22mid_band.22_CB_Frequencies|Citizen's Band radio]] equipment - indicating that the federal government expects these frequencies to be used with modified [[11_meter|11 meter]] CB radio equipment, modified [[Remote_Control#26.2F27_MHz_27MHz_26-28_MHz_RC_Frequencies|RCRS]] equipment and/or <ins class="diffchange diffchange-inline">[[Amateur_radio#Amateur_Radio_Bands_MF.2FHF|</ins>modified<ins class="diffchange diffchange-inline">]] </ins>10 meter transceivers (export radios). </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Due to the large amount of [[CB#Freeband_11_Meter_Frequencies_and_Bands|freeband]] CB radio chatter on both 27.575 MHz and 27.585 MHz, these frequencies are rarely used. 27.575 and 27.585 MHz are sometimes compared to the old [[Civil Air Patrol]] 26 MHz AM voice frequency 26.62 MHz AM 26.620 MHz 26620 kHz AM. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Due to the large amount of [[CB#Freeband_11_Meter_Frequencies_and_Bands|freeband]] CB radio chatter on both 27.575 MHz and 27.585 MHz, these frequencies are rarely used. 27.575 and 27.585 MHz are sometimes compared to the old [[Civil Air Patrol]] 26 MHz AM voice frequency 26.62 MHz AM 26.620 MHz 26620 kHz AM. </div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15776&oldid=prevR4002: /* Federal Common Use Frequencies */2024-02-08T15:41:59Z<p><span class="autocomment">Federal Common Use Frequencies</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 15:41, 8 February 2024</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*6K00A3E - [[AM]] voice (full carrier AM with both [[SSB|sidebands]]), regular AM radiotelephony </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*6K00A3E - [[AM]] voice (full carrier AM with both [[SSB|sidebands]]), regular AM radiotelephony </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>The 27.575 MHz and 27.585 MHz frequencies are [[11_meter#Legal_Users_of_the_25-30_MHz_Spectrum|allocated]] to provide U.S. Government short range voice radio communications, radio signaling, remote control of objects, devices, telemetry [[HF_pagers|links]], data links and other similar purposes. NTIA regulations specifically mention the use of [[FCC]] type-accepted [[CB#US_.22FCC.22_.22CEPT.22_or_.22mid_band.22_CB_Frequencies|Citizen's Band radio]] equipment - indicating that the federal government expects these frequencies to be used with modified [[11_meter|11 meter]] CB radio equipment <del class="diffchange diffchange-inline">or </del>modified [[Remote_Control#26.2F27_MHz_27MHz_26-28_MHz_RC_Frequencies|RCRS]] equipment. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>The 27.575 MHz and 27.585 MHz frequencies are [[11_meter#Legal_Users_of_the_25-30_MHz_Spectrum|allocated]] to provide U.S. Government short range voice radio communications, radio signaling, remote control of objects, devices, telemetry [[HF_pagers|links]], data links and other similar purposes. NTIA regulations specifically mention the use of [[FCC]] type-accepted [[CB#US_.22FCC.22_.22CEPT.22_or_.22mid_band.22_CB_Frequencies|Citizen's Band radio]] equipment - indicating that the federal government expects these frequencies to be used with modified [[11_meter|11 meter]] CB radio equipment<ins class="diffchange diffchange-inline">, </ins>modified [[Remote_Control#26.2F27_MHz_27MHz_26-28_MHz_RC_Frequencies|RCRS]] equipment <ins class="diffchange diffchange-inline">and/or modified 10 meter transceivers (export radios)</ins>. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Due to the large amount of [[CB#Freeband_11_Meter_Frequencies_and_Bands|freeband]] CB radio chatter on both 27.575 MHz and 27.585 MHz, these frequencies are rarely used. 27.575 and 27.585 MHz are sometimes compared to the old [[Civil Air Patrol]] 26 MHz AM voice frequency 26.62 MHz AM 26.620 MHz 26620 kHz AM. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Due to the large amount of [[CB#Freeband_11_Meter_Frequencies_and_Bands|freeband]] CB radio chatter on both 27.575 MHz and 27.585 MHz, these frequencies are rarely used. 27.575 and 27.585 MHz are sometimes compared to the old [[Civil Air Patrol]] 26 MHz AM voice frequency 26.62 MHz AM 26.620 MHz 26620 kHz AM. </div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15775&oldid=prevR4002: /* Federal Common Use Frequencies */2024-02-08T15:41:09Z<p><span class="autocomment">Federal Common Use Frequencies</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 15:41, 8 February 2024</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''Wide Area Common Use Frequencies''' </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''Wide Area Common Use Frequencies''' </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>NTIA calls these Wide-Area, Common-Use Frequencies. Of them, 163.1 MHz and 168.35 MHz are the most commonly used (both as a repeater pair and for simplex operations). <del class="diffchange diffchange-inline"> </del>These are effectively federal itinerant frequencies. See the local area common use frequencies below as well. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>NTIA calls these Wide-Area, Common-Use Frequencies. Of them, 163.1 MHz and 168.35 MHz are the most commonly used (both as a repeater pair and for simplex operations). These are effectively federal itinerant frequencies. See the local area common use frequencies below as well. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*163.1000 MHz - Simplex or repeater output</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*163.1000 MHz - Simplex or repeater output</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*163.7125 MHz - Simplex only</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*163.7125 MHz - Simplex only</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*168.6125 MHz - Simplex only</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*168.6125 MHz - Simplex only</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">*173.6250 MHz - Repeater output (input: 167.1375 MHz)</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">*407.5250 MHz - Repeater output (input: 416.5250 MHz)</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">*409.0750 MHz - Repeater output (input: 418.0750 MHz)</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*412.8750 MHz - Simplex only</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*412.8750 MHz - Simplex only</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*412.8875 MHz - Simplex only</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*412.8875 MHz - Simplex only</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*412.9000 MHz - Simplex only</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*412.9000 MHz - Simplex only</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*412.9125 MHz - Simplex only</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*412.9125 MHz - Simplex only</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">*173.6250 MHz - Repeater output (input: 167.1375 MHz)</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">*407.5250 MHz - Repeater output (input: 416.5250 MHz)</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">*409.0750 MHz - Repeater output (input: 418.0750 MHz)</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Many government agencies will include a mixture of the local area common use frequencies and the wide area common use frequencies for simplex, tactical, talkaround and similar purposes. Examples agencies such as the National Park Service and US Forest Service. In some areas, 168.350 MHz, 163.100 MHz, 163.7125 MHz and 168.6125 MHz are all included in agency radios for simplex purposes. Because of the shared nature of these frequencies, most agencies that use them as [[Business_Radio#Common_Itinerant_and_Low_Power_Business_Frequencies|itinerant]] frequencies program the frequencies in regular analog NFM mode with carrier squelch.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Many government agencies will include a mixture of the local area common use frequencies and the wide area common use frequencies for simplex, tactical, talkaround and similar purposes. Examples agencies such as the National Park Service and US Forest Service. In some areas, 168.350 MHz, 163.100 MHz, 163.7125 MHz and 168.6125 MHz are all included in agency radios for simplex purposes. Because of the shared nature of these frequencies, most agencies that use them as [[Business_Radio#Common_Itinerant_and_Low_Power_Business_Frequencies|itinerant]] frequencies program the frequencies in regular analog NFM mode with carrier squelch.</div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15769&oldid=prevR4002: /* UHF band */2024-02-02T17:49:39Z<p><span class="autocomment">UHF band</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 17:49, 2 February 2024</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''*UHF MED Channels - UHF EMS Channels'''</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''*UHF MED Channels - UHF EMS Channels'''</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>'''*Original Channel Plan (25 kHz channels, 12.5 kHz bandwidth)'''</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>'''*Original Channel Plan (25 kHz channels, 12.5 kHz bandwidth <ins class="diffchange diffchange-inline">- 11K3F3E / 11K2F3E / 11K0F3E emission</ins>)'''</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*462.9500 MHz - MED-9 - Calling/Dispatch, repeater paired with 467.9500 MHz</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*462.9500 MHz - MED-9 - Calling/Dispatch, repeater paired with 467.9500 MHz</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*462.9750 MHz - MED-10 - Calling/Dispatch, repeater paired with 467.9750 MHz</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*462.9750 MHz - MED-10 - Calling/Dispatch, repeater paired with 467.9750 MHz</div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15748&oldid=prevR4002: /* Federal Common Use Frequencies */2024-01-31T18:41:14Z<p><span class="autocomment">Federal Common Use Frequencies</span></p>
<table style="background-color: white; color:black;">
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<td colspan='2' style="background-color: white; color:black;">Revision as of 18:41, 31 January 2024</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The 27.575 MHz and 27.585 MHz frequencies are [[11_meter#Legal_Users_of_the_25-30_MHz_Spectrum|allocated]] to provide U.S. Government short range voice radio communications, radio signaling, remote control of objects, devices, telemetry [[HF_pagers|links]], data links and other similar purposes. NTIA regulations specifically mention the use of [[FCC]] type-accepted [[CB#US_.22FCC.22_.22CEPT.22_or_.22mid_band.22_CB_Frequencies|Citizen's Band radio]] equipment - indicating that the federal government expects these frequencies to be used with modified [[11_meter|11 meter]] CB radio equipment or modified [[Remote_Control#26.2F27_MHz_27MHz_26-28_MHz_RC_Frequencies|RCRS]] equipment. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The 27.575 MHz and 27.585 MHz frequencies are [[11_meter#Legal_Users_of_the_25-30_MHz_Spectrum|allocated]] to provide U.S. Government short range voice radio communications, radio signaling, remote control of objects, devices, telemetry [[HF_pagers|links]], data links and other similar purposes. NTIA regulations specifically mention the use of [[FCC]] type-accepted [[CB#US_.22FCC.22_.22CEPT.22_or_.22mid_band.22_CB_Frequencies|Citizen's Band radio]] equipment - indicating that the federal government expects these frequencies to be used with modified [[11_meter|11 meter]] CB radio equipment or modified [[Remote_Control#26.2F27_MHz_27MHz_26-28_MHz_RC_Frequencies|RCRS]] equipment. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>Due to the large amount of [[CB#Freeband_11_Meter_Frequencies_and_Bands|freeband]] CB radio chatter on both 27.575 MHz and 27.585 MHz, these frequencies are rarely used.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>Due to the large amount of [[CB#Freeband_11_Meter_Frequencies_and_Bands|freeband]] CB radio chatter on both 27.575 MHz and 27.585 MHz, these frequencies are rarely used. <ins class="diffchange diffchange-inline"> 27.575 and 27.585 MHz are sometimes compared to the old [[Civil Air Patrol]] 26 MHz AM voice frequency 26.62 MHz AM 26.620 MHz 26620 kHz AM. </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''Wide Area Common Use Frequencies''' </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''Wide Area Common Use Frequencies''' </div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15745&oldid=prevR4002: /* Federal / Non-Federal Interagency Search and Rescue SAR Interoperability */2024-01-23T13:09:20Z<p><span class="autocomment">Federal / Non-Federal Interagency Search and Rescue SAR Interoperability</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 13:09, 23 January 2024</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Federal / Non-Federal Interagency Search and Rescue SAR Interoperability===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===Federal / Non-Federal Interagency Search and Rescue SAR Interoperability===</div></td></tr>
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<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>*2182 kHz - USB voice - SAR operations - marine distress/calling </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>*2182 kHz - USB voice - SAR operations - <ins class="diffchange diffchange-inline">[[HF_marine#SSB_Voice_and_DSC_Distress_Safety_Calling_Frequencies|</ins>marine distress<ins class="diffchange diffchange-inline">]]</ins>/calling </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*3023 kHz - USB voice - SAR operations - marine, military </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*3023 kHz - USB voice - SAR operations - marine, military </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*4125 kHz - USB voice - SAR operations - marine distress/calling</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*4125 kHz - USB voice - SAR operations - marine distress/calling</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*853.0125 MHz - 8TAC94D - SAR Command interop simplex - 156.7 Hz CTCSS</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*853.0125 MHz - 8TAC94D - SAR Command interop simplex - 156.7 Hz CTCSS</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*853.0125 MHz - 8TAC94 - SAR Command interop repeater (paired with 808.0125 MHz) - 156.7 Hz CTCSS</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*853.0125 MHz - 8TAC94 - SAR Command interop repeater (paired with 808.0125 MHz) - 156.7 Hz CTCSS</div></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2"> </td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===National Incident Radio Support Cache===</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>===National Incident Radio Support Cache===</div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15439&oldid=prevR4002: /* Oil Spill Cleanup */2023-08-22T16:08:54Z<p><span class="autocomment">Oil Spill Cleanup</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 16:08, 22 August 2023</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>36.25 MHz and 41.71 MHz may only be used in coastal areas, rivers and inland waterways of the United States for oil spill cleanup operations. Repeaters and fixed stations for these frequencies may be installed next to waterways, but inland operation is not permitted. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>36.25 MHz and 41.71 MHz may only be used in coastal areas, rivers and inland waterways of the United States for oil spill cleanup operations. Repeaters and fixed stations for these frequencies may be installed next to waterways, but inland operation is not permitted. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>-</td><td style="background: #ffa; color:black; font-size: smaller;"><div>454.0 MHz and 459.0 MHz are also used for [[racetrack]] communications. </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>454.0 MHz and 459.0 MHz are also used for [[<ins class="diffchange diffchange-inline">Racing_frequencies|</ins>racetrack]] communications. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*[[SINCGARS#Federal_Government_and_Military_Only_Bands_30-50_MHz|36.2500 MHz]] - Oil spill cleanup/interop (simplex or repeater input/output, often paired with 41.71 MHz)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*[[SINCGARS#Federal_Government_and_Military_Only_Bands_30-50_MHz|36.2500 MHz]] - Oil spill cleanup/interop (simplex or repeater input/output, often paired with 41.71 MHz)</div></td></tr>
</table>R4002https://hfunderground.com/wiki/index.php?title=Nationwide_Public_Safety_Interoperability&diff=15438&oldid=prevR4002: /* Oil Spill Cleanup */2023-08-22T16:07:35Z<p><span class="autocomment">Oil Spill Cleanup</span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 16:07, 22 August 2023</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>36.25 MHz and 41.71 MHz may only be used in coastal areas, rivers and inland waterways of the United States for oil spill cleanup operations. Repeaters and fixed stations for these frequencies may be installed next to waterways, but inland operation is not permitted. </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>36.25 MHz and 41.71 MHz may only be used in coastal areas, rivers and inland waterways of the United States for oil spill cleanup operations. Repeaters and fixed stations for these frequencies may be installed next to waterways, but inland operation is not permitted. </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">454.0 MHz and 459.0 MHz are also used for [[racetrack]] communications. </ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*[[SINCGARS#Federal_Government_and_Military_Only_Bands_30-50_MHz|36.2500 MHz]] - Oil spill cleanup/interop (simplex or repeater input/output, often paired with 41.71 MHz)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>*[[SINCGARS#Federal_Government_and_Military_Only_Bands_30-50_MHz|36.2500 MHz]] - Oil spill cleanup/interop (simplex or repeater input/output, often paired with 41.71 MHz)</div></td></tr>
</table>R4002