Some possible faults include:
- you must provide DC blocking capacitors on the input and output so that you don't upset the bias inside the IC
- output impedance is fairly high, so if you try to measure output with a 50 ohm meter or instrument, you would likely lose most of the output signal and it may then not be measurable. Use a high impedance meter, or an impedance buffer or matching circuit of some sort.
- this is a high frequency circuit, so you must construct it on pcb, using good RF practice like for example, keeping connections short. It cannot be constructed on solderless plugboard.
- the simplest input circuit is shown in the Philips data sheet, Figure 5c. this should work ok for you. The simplest output circuit would be to ac couple from pin 5 to an impedance buffer amp, or to a matching circuit or RF transformer. See Figure 6 for ideas.