There is no standard/universal plan for those channels. Although many systems tend to stick with what could be considered a default band plan, not all do, and thus no official standard.

You must calculate the frequencies that correspond to the channel IDs by using the band plan of the system.

As an example, many (but not all) Motorola ASTRO 25 systems will use a common band plan of:

** Bandplan #0: Base=851.00625 Spacing=6.25**

Bandplan #1: Base=762.00625 Spacing=6.25

Bandplan #2: Base=851.01250 Spacing=12.5 TDMA

Bandplan #3: Base=762.00625 Spacing=12.5 TDMA
So using that band plan we can calculate the channels you've provided by doing a little arithmetic:

- 00-0000 would translate to the base frequency of band plan 0, or 851.00625
- 02-1470 would be a TDMA channel, and so the channel ID must be divided in half first, then multiplied by the spacing, with that result added to the base frequency. So 1470÷2 = 735, multiplied by 0.0125 equals 9.1875, added to the base frequency of 851.0125 gives you a result of 860.200 MHz
- 02-1520 is calculated the same as 02-1470, and results in 860.5125 MHz

Also note that TDMA channels will have two channel IDs, one for each slot. Example 02-1470 and 02-1471, which both translate to the same frequency. When dividing those by 2, you need to round the higher channel down by 0.5 before multiplying. In other words 02-1471÷2=735.5, so you round down to 735 which is the same as 02-1470.

If the system in question is using a different band plan, which it very well might, then the resulting frequencies may be different than my examples. Hence "no standard plan".