the cheapest RF meter, for high frequency, is the HF Detektor II Profi, but
it costs US 150,-
(At Lessemf.)
But I would prefer then the HF Analyser HF 35C or the Com Monitor.
They cost in Germany Euro 240, alt Euro 254, excl VAT and postage.
Look at www.priggen.de.vu under Online shop,
than Umwelt-Messgeraete, than Eelektromagn. Felder (HF).
For US 35, there are no meters that can measure high frequency.
Perhaps you may rent a meter for a week or so.
Greetings,
Charles Claessens
member Verband Baubiologie
http://members.rott.chello.nl/cclaessens/checked by Norton Antivirus