All 2020 systems are programmed with four groups of eight frequencies, viz.
F1 channels 1-8 & 9-16 and F2 channels 1-8 & 9-16
Your Sydney frequency plan is as below:
F1 F2
1 554.050 555.050
2 554.500 555.500
3 555.600 556.600
4 555.900 556.900
5 558.300 559.300
6 559.100 560.100
7 560.350 561.350
8 561.300 562.300
9 554.550 555.550
10 555.000 556.000
11 556.100 557.100
12 556.400 557.400
13 558.800 559.800
14 559.600 560.600
15 560.850 561.850
16 561.800 562.800
NB: Frequencies highlighted in red are NOT recommended for Sydney or Adelaide
Why include frequencies which are unsuitable for Sydney?
Simple; we assume that you will not always be working in Sydney. If we put all the frequencies within TV channel 32, what would happen if you were in an area where channel 32 was in use? You would have no options. We deliberately mix in frequencies from channel 33 so that you have alternative frequencies for those occasions when you are away from the Sydney Basin.
If you are using MORE than two systems, try to keep them all within one group. Avoid mixing groups as you may suffer inter-modulation problems. Keep all units on F1 or F2 (this applies to all 2020 systems, not just this frequency plan).
In New South Wales, frequencies between 554-561 MHz are generally safe in most locations and the following combinations should be OK
F1 F2
2 555.900 555.500
4 558.300 556.900
5 559.100 559.300
6 560.850 560.100
Interference may be experienced close to Boudi (Central Coast) or Broker’s Nose (Illawarra) from low-powered analogue translators. For these, Darwin, or any other locations you experience range reduction, try the RED frequencies, eg.
F1 F2
7 560.350 561.350
8 561.300 562.300
15 560.850 561.850
16 561.800 562.800
While the 554-561 MHz region poses few problems in most locations now, it may in the future. Don’t bother to change frequencies unless you are experiencing problems. This is a contingency plan.