On Thu, 28 Jan 2010 17:34:00 -0800, artie
wrote:

In article
,
" wrote:

On Jan 28, 3:10?pm, highlandham wrote:
Probably like many of you I just received the following message from FCC
:
? Under a new FCC rule, anyone who uses a wireless microphone that
operates in the 700 MHz Band must stop operating their wireless
microphone no later than June 12, 2010. ?All users of 700 MHz Band
wireless microphones (and similar devices) - including theaters,
churches, schools, conference centers, theme parks, and musicians --
will need to retune (where possible) or replace their wireless
microphone equipment with other microphone devices no later than June
12, 2010. This action helps complete an important component of the DTV
Transition by clearing the 700 MHz band to enable the rollout of
communications services for public safety and the deployment of next
generation 4G wireless devices for consumers.

For further information, please visit the website
atwww.fcc.gov/cgb/wirelessmicrophones

My question : ?Can these wireless devices be re-tuned ,or have they now
become obsolete. The 700 MHz band is from 698 -806 MHz.

For many organisations like churches this might become an expensive ruling.

Frank ? GM0CSZ / KN6WH

Frank

Thanks for this post. I have care of ca. a dozen wireless
microphones. Fortunately they are in two bands at ca. 500MHz.

My guess is that it will be difficult to retune these devices to
another band, and it will have to be looked at on a case by case
basis. The Shure programmable units offer many channels in a
relatively small bandwidth. This presumably makes front-end
filtering, and PA matching easier.

73 John KC0G

This has been in the works for some time. A number of mic
manufacturers are offering trade-in and trade-up programs for folks
with mics in the 700 MHz band.

On the flip side of this ruling, the FCC has admitted that requiring
licenses for wireless mics (on other bands) is futile at best and for
the time being at least, is throwing up their collective hands.

The NPRM is FCC-10-16A1.pdf, available at:

http://hraunfoss.fcc.gov/edocs_publi...CC-10-16A1.pdf

The FCC is seeking comments on the nature of licenses, license
requirements, and the whole enchilada going forward -- so more changes
are in store in the future for wireless mics.

But for now, other than clearing the 700 MHz band, churches, schools,
theatres, and bands are safe using their wireless kit.


Not necessarily...They maybe for an indeterminate time, but as soon as
some one is using that portion of the band they will be liable if they
create any interference. OTOH the likely hood of creating
interference is slim even after these segments become populated,
*unless* they find public safety using them in their area.
I'd not expect to see anything actually active in less than a year and
maybe two. It's rare something like this moves quickly and
particularly with government.

There is a possibility of these being looked at like part 15 devices.
No interference, no worry. Interference means immediate stop, but that
appears to be well in the future.

Roger

A good site to watch on these matters is:

http://www.commlawblog.com/

it's published by a law firm that does FCC stuff. I'm not associated
with it; I find it useful.