As with all radio signals, performance is all down to the efficiency of the aerial. The small PMR446 hand-held units work at a frequency where smaller aerials are much more efficient than they are at CB frequencies.
In general the PMR446 units will actually give you more range unit-to-unit than a pair of CB handhelds would. This is despite the fact that their output power is far less than the CB!
The main advantage with CB handhelds is that they can communicate with vehicle and base CB's which increase the usable range greatly by virtue of their more efficient aerials.
The only problems with the PMR446 units are that you cannot connect an external aerial to them, the fact that there are only 8 channels available (don't listen to claims of 300+, there is only 8) and that CB’s and PMR's are incompatible - they cannot talk to each other.
The claims of 300+ channels are people getting confused with "privacy codes" - ways of making the units only hear what you want them to hear!
Shown here is an Alan 441 PMR446 unit...
It is very small and has some very neat features on it!
We already supply various makes of PMR446 and we will be adding these products to this site soon... in the meantime give us a call to discuss whether PMR446 could be a better choice for you