radio interference with flouros

Its better to kill it at the source by dumping the fluro for an LED equivalent.

Generally speaking the noise is conducted down the wires connected to your appliance
and then radiated out by those wires.

Sometimes you can enough of a fix with just suppression capacitors but more usually you need to impede the propagation by adding in a ferrite choke around each cable , and also using supression capacitors.
(Electronics shops sell snap on supression chokes items for a few bucks each- these also work on mains wiring)
Following the fitting of these devices its best to also use shielded cable from your fluro light as well.

As you can see its usually better to dump the offender, but before you do check that the globe is not on the way out(flicking) and causing excessive noise.

Kill the radio mate.

You don't need it out bush anyway. It drowns out the "noise" of nature.

Bill.