The data sheet for the MK484 states a maximum working frequency of 3000kHz (3Mhz). This will receive tropical band stations although both sensitivity and selectivity will fall at these higher frequencies.
However if you live in Australia Northern Territories then there is a chance you may hear National Radio Australia on one of the frequencies below:-
VL8A 2310kHz Alice Springs
VL8K 2385k Katherine
VL8T 2485k Tennant Creek, NT
These tropical band transmissions do reach Europe, although not on this receiver, you would need a very good aerial and a commercial short wave radio to receive in Europe as the transmitters only use 50kW.Coil Details:
My Tuned Circuit page has some useful calculators for both the tuned circuit and to calculate inductance values.
Some experimentation will be necessary and you may find that you also need an external aerial to receive broadcasts. coil or via a series capacitor value between 10pF and 100pF.
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