FM Boosters: The Next Source of Originated Programming?
FCC invites preliminary comment on Geo Broadcasting proposal for program origination by FM boosters.
Now that the DTV transition has been in effect for almost three years, multi-channel TV broadcasting is fairly commonplace. But what about FM radio? Thanks to digital FM technology designed by iBiquity and authorized by the FCC, FM stations have for years been able to provide up to two additional programming streams beyond their main channel. And yet, development of an economically sound model for multi-channel audio services has been much slower than on the TV side.
Enter Geo Broadcasting Solutions, LLC (Geo). The folks at Geo have come up with an alternative approach to multi-channel FM service. They are proposing that on-channel analog FM boosters be permitted to originate programming separately from the parent station. The concept is that each booster could transmit hyper-local material to the audience in its immediate vicinity – mostly commercial spots, but also other material if a licensee so desired.
Boosters are like translators – low-power transmitters that permit licensees of full-power stations to improve the coverage of their full-power stations within their already protected contours. The difference between boosters and translators is that a booster operates on the same frequency as the full-power station whose signal it is “boosting”. Translators, of course, operate on different frequencies from their primary stations. (Boosters are authorized only to the licensee of the primary station and may not expand the primary station’s service area. Commercial translators funded by the primary station also may not expand the primary station’s service area – a restriction that does not apply to non-commercial translators or independently-funded commercial translators.)
Since boosters are on the same channel as the primary station, booster operation generally poses considerable potential for interference. That’s one reason why boosters have not been widely used over the years, even though the FCC’s rules have provided for them for more than four decades. In recent years, however, modern computer control techniques allowing precise synchronization of the parent and booster signals have improved performance. A quick glance at the FCC’s database indicates that a few hundred FM boosters are currently authorized.
Geo claims to hold patents on techniques that shape signal coverage to avoid interference both (a) between a booster and its parent station and (b) between multiple boosters each rebroadcasting the same parent. According to Geo, its technology will allow the insertion of separate material into the programming on each booster. In other words, a licensee with multiple boosters could include different programming on each separate booster – allowing the licensee to direct different content to specific areas within its main station’s primary contour.
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