These are some of my favorite internet sources for pirate radio FM broadcasting equipment which I put together for reference in my own pirate radio forums. Thought I'd pass it along here:Sources for FM transmitters, amplifiers, antennas, equipment
One should bear in mind that if you live in the United States, most US-based companies may refuse to sell you an assembled FM transmitter, as that violates FCC regulations. However, they may sell it in kit form. Other countries may have the same restrictions. Luckily, with today's global internet market, it should be quite easy to find a source in a different country who will be only too happy to sell you what you need in assembled form.FM Broadcast Transmitters, Amplifiers and Other Equipmenthttp://www.freeradio.org/http://www.veronica-kits.co.uk/http://www.aareff.com/http://www.wavemach.com/http://www.progressive-concepts.com/http://www.pcs-electronics.com/http://www.broadcastconcepts.com/FM Broadcast Antennashttp://www.aareff.com/en/5-8-fm-transmitter-antenna.htmhttp://fmbroadcastantenna.com/dominator.htmlhttp://www.fmdxantenna.com/products.php?cat=FM+Transmitter+Antennashttp://www.jpole-antenna.com/antennas/low-power-fm-broadcast-antenna/FM Broadcasting Equipment on eBay
eBay can be one of the best sources for low-power pirate FM broadcasting equipment, and in many cases you can expect to pay less there than you would buying from the websites above. "HLLY" transmitters are particularly low in price and are sold from China-- but may suffer from harmonics/spurs, so 'buyer beware'. As with any other FM transmitting equipment, they should not be used without a low-pass filter (which may not solve the entire problem). But there are plenty of other makes/models.
The eBay searches below will show what is available at any given time:
FM Broadcast Transmitterhttp://www.ebay.com/sch/i.html?_trksid=p4712.m570.l1313&_nkw=FM+broadcast+transmitter&_sacat=0
FM Broadcast Antennahttp://www.ebay.com/sch/i.html?_sacat=0&_nkw=fm+broadcast+antenna
FM Broadcast Amplifierhttp://www.ebay.com/sch/i.html?_nkw=fm+broadcast+amplifier&_sacat=0&_odkw=fm+broadcast+antenna&_osacat=0
FM Low-pass filterhttp://www.ebay.com/sch/i.html?_trksid=p5197.m570.l1313&_nkw=fm+low+pass+filter&_sacat=0