Method for operating in an 800 MHz trunked radio communications system by mapping channels to frequencies

In a trunked radio communications system operating in the 800 MHz spectrum, wherein the trunked radio communications system comprises at least one site, at least one control channel, at least one voice channel, and a plurality of receiving devices, a method for operating by mapping channels to frequencies, the method comprising the steps of:

• at a receiving device in the trunked radio communications system:
• receiving a voice channel number, wherein the voice channel number is communicated in an outbound signaling message defined by Motorola's 3600-baud radio trunking protocol;
• and
• tuning to about a transmit frequency of 806.7750 MHz, if the voice channel number is 470;
• tuning to about a transmit frequency of 806.8000 MHz, if the voice channel number is 471;
• tuning to about a transmit frequency of 806.8250 MHz, if the voice channel number is 472;
• tuning to about a transmit frequency of 806.8500 MHz, if the voice channel number is 473;
• tuning to about a transmit frequency of 806.8750 MHz, if the voice channel number is 474;
• tuning to about a transmit frequency of 806.9000 MHz, if the voice channel number is 475;
• tuning to about a transmit frequency of 806.9250 MHz, if the voice channel number is 476;
• tuning to about a transmit frequency of 806.9500 MHz, if the voice channel number is 477;
• tuning to about a transmit frequency of 806.9750 MHz, if the voice channel number is 478;
• tuning to about a transmit frequency of 807.0000 MHz, if the voice channel number is 479;
• tuning to about a transmit frequency of 807.0250 MHz, if the voice channel number is 480;
• tuning to about a transmit frequency of 807.0500 MHz, if the voice channel number is 481;
• tuning to about a transmit frequency of 807.0750 MHz, if the voice channel number is 482;
• tuning to about a transmit frequency of 807.1000 MHz, if the voice channel number is 483;
• and
• tuning to about a transmit frequency of 807.1250 MHz, if the voice channel number is 484.

In a trunked radio communications system operating in the 800 MHz spectrum, wherein the trunked radio communications system comprises at least one site, at least one control channel, at least one voice channel, and a plurality of receiving devices, a method for operating by mapping channels to frequencies, the method comprising the steps of:

• at a receiving device in the trunked radio communications system:
• receiving a voice channel number, wherein the voice channel number is communicated in an outbound signaling message defined by Motorola's 3600-baud radio trunking protocol;
• and
• tuning to about a receive frequency of 852.5250 MHz, if the voice channel number is 500;
• tuning to about a receive frequency of 852.5500 MHz, if the voice channel number is 501;
• tuning to about a receive frequency of 852.5750 MHz, if the voice channel number is 502;
• tuning to about a receive frequency of 852.6000 MHz, if the voice channel number is 503;
• tuning to about a receive frequency of 852.6250 MHz, if the voice channel number is 504;
• tuning to about a receive frequency of 852.6500 MHz, if the voice channel number is 505;
• tuning to about a receive frequency of 852.6750 MHz, if the voice channel number is 506;
• tuning to about a receive frequency of 852.7000 MHz, if the voice channel number is 507;
• tuning to about a receive frequency of 852.7250 MHz, if the voice channel number is 508;
• tuning to about a receive frequency of 852.7500 MHz, if the voice channel number is 509;
• tuning to about a receive frequency of 852.7750 MHz, if the voice channel number is 510;
• tuning to about a receive frequency of 852.8000 MHz, if the voice channel number is 511;
• tuning to about a receive frequency of 852.8250 MHz, if the voice channel number is 512;
• tuning to about a receive frequency of 852.8500 MHz, if the voice channel number is 513;
• and
• tuning to about a receive frequency of 852.8750 MHz, if the voice channel number is 514.