Ever think about turning podcasting into normal FM-band broadcasting?

A low cost device to get rid of the earphones and
share your podcast content to a wider audience.
Cost: just HKD$85 !!

Wireless FM transmitter (no brand)

transmission range: around 20 feet (battery operation)
transmission duration (battery): to be tested
frequency band: 4 selectable FM tuning (106.7, 107.1, 107.5, 107.9Mhz) hard-switched
mode: stereo, analogue
input interface: standard 3.5mm stereo mini-jack
indcators: power LED; flashing frequency LED
power source: 2x 1.5V AAA battery
or power adaptor (car lighter port)

Application:

In-car podcast on FM-radio (coach, mini-bus, private car with FM-receiver)
Large group audience via FM radio reception
Podcasting in outdoors situation for group with FM radio receivers

Evaluation:

Reception quality is satisfactory for good signal-to-noise and stereo. The in-car FM radio sound is virtually indistinguishable from normal FM radio stations. Bass signals is even better. Transmission range, for the small size portable unit running on batteries, is adequate for home-use.

Not test in open-environment yet. Stay tuned.

For build & design, this gadget is agan highly recommended. The LED display is easy to comprehend. RED for power on, and green LED flashing. The power-button is a toggle between in-car adaptor or battery operation. So there is no need to take out the batteries when using a power adaptor.

The white plastic enclosure is neat. Only complaint is the rather short and thick cable for the 3.5mm input signal plug.

Last but not least, the legal issue! Despite the fact that the tested device does not interfere with any existing FM-radio stations, the transmission on that frequency spectrum is an unauthorised act. Use at your own risk.

Other models:
iTrips (from Griffin Technology, specifically for iPod connectivity)
Kensington (for mini-iPod connectivity)
Belkin TuneCast Mobile FM Transmitter (similar to the one mentioned above)
Belkin TuneCast II Mobile FM Transmitter (with continuous frequency setting & 4 memory)