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<br />· Gateways, patching or cross-band repeating of VHF narrowband calling channels to calling <br />channels in other bands is not permitted. Patching to/between interoperability tactical <br />channels is permitted during emergency situations if so directed by the incident commander. <br /> <br />Figure 2 <br /> <br />VHF 150 MHz Narrowband Interoperability Channels (12.5 kHz) <br />(Mobile and Portable Configuration) <br /> <br /> <br />155.7525 $061F 156.7 TX & RX VCALL Calling Channel <br />151.1375 $061F 156.7 TX & RX VTAC1 On'6cene tactical- command channel <br />154.4525 $061F 156.7 TX & RX VTAC2 On'6cene tactical. command channel <br />158.7375 $061F 156.7 TX & RX VTAC3 On'6cene tactical - command channel <br />159.4725 $061F 156.7 TX & RX VTAC4 On-scene tactical - command channel .. <br /> * recommended for air-la-ground with state and federal aircraft only. <br /> <br />This channel plan establishes specific labels for VHF narrowband channels to assure consistency <br />throughout the state. These labels are listed below and all participating agencies should use these <br />labels if possible. Alphanumeric radio displays should be consistent with the examples listed below <br />depending on each radio's capability. <br /> <br />3- Digit - VCl, VT1, VT2, VT3, VT 4 <br />5+ Digit - VCAll, VT AC1, VT AC2, VT AC3, VT AC4 <br /> <br />5. SPECIFIC GUIDELINES .. UHF 450 MHz Wideband Channels <br /> <br />Wideband UHF interoperability channels present challenges to the state. The FCC has not <br />identified specific UHF wideband channels for use in interoperability situations. Although a <br />substantial amount of UHF radio equipment is being used throughout the state, in many cases <br />these UHF users are geographically dispersed. Many EMS responders utilize UHF wideband <br />equipment to communicate with hospitals and this equipment should be accounted for in regional <br />interoperability solutions. Some public safety agencies using UHF equipment have deployable <br />systems to provide an interface with other users and for on-incident commanders. <br /> <br />Regionally based interoperability solutIons must consider how to incorporate wideband UHF users <br />into their respective regional interoperability plans. The General Conditions in section 8 of this <br />MOU should be included in such plans. If a deployable UHF gateway or a console patch is used <br />with the interoperability channels identified in this MOU, this interconnected equipment should <br />conform to the Conditions and Guidelines set out in this MOU. <br /> <br />6. SPECIFIC GUIDELINES .- UHF 450 MHz Narrowband Channels <br /> <br />For narrowband UHF interoperability, the four narrowband repeater channels (with direct) described <br />in Figure 3 below will be used. Note the following: <br /> <br />· Narrowband UHF interoperability channels are identified by the FCC for interoperability use <br />within Texas. Some of these interoperable channels may already be licensed by multiple <br />agencies for interoperability use throughout the state. <br /> <br />11 <br />