[mcp6453[_2_]]

I have a Sennheiser wireless system in one of the old frequency groups.
It's really aggravating because it is brand new, has never been used,
and is now useless. If I use it anyway, what could I expect? I'm not
clear on what services are using the frequencies that this system used.

Sennheiser offered a rebate program for trading in the system, but it's
not that attractive considering how long I've had the system. We just
did a session Thursday, and we used a pocket recorder with a lav. Since
there was only one speaker, that's probably a much better solution
anyway as there is no frequency coordination.

Do wireless systems on the old frequencies have any resale value in
other countries? Mine is still in the box.

[Scott Dorsey]

mcp6453 wrote:
I have a Sennheiser wireless system in one of the old frequency groups.
It's really aggravating because it is brand new, has never been used,
and is now useless. If I use it anyway, what could I expect? I'm not
clear on what services are using the frequencies that this system used.

Which group is it?

Some of the old frequencies you might be able to get away with using
illegally. Some of them (anything in existing TV channels) will be
marginal and interference-prone. Some of them (the 700 MHz public
service band) will get you in big trouble.

Sennheiser offered a rebate program for trading in the system, but it's
not that attractive considering how long I've had the system. We just
did a session Thursday, and we used a pocket recorder with a lav. Since
there was only one speaker, that's probably a much better solution
anyway as there is no frequency coordination.

When did you get the system? The plan for losing the 700 Mhz stuff has
been on file for six years now.

Do wireless systems on the old frequencies have any resale value in
other countries? Mine is still in the box.

Depends which frequencies they are on, and which models they are. Some
of those are type accepted in a lot of places and some aren't.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[mcp6453[_2_]]

Scott Dorsey wrote:
mcp6453 wrote:
I have a Sennheiser wireless system in one of the old frequency groups.
It's really aggravating because it is brand new, has never been used,
and is now useless. If I use it anyway, what could I expect? I'm not
clear on what services are using the frequencies that this system used.

Which group is it?

Some of the old frequencies you might be able to get away with using
illegally. Some of them (anything in existing TV channels) will be
marginal and interference-prone. Some of them (the 700 MHz public
service band) will get you in big trouble.

Sennheiser offered a rebate program for trading in the system, but it's
not that attractive considering how long I've had the system. We just
did a session Thursday, and we used a pocket recorder with a lav. Since
there was only one speaker, that's probably a much better solution
anyway as there is no frequency coordination.

When did you get the system? The plan for losing the 700 Mhz stuff has
been on file for six years now.

Do wireless systems on the old frequencies have any resale value in
other countries? Mine is still in the box.

Depends which frequencies they are on, and which models they are. Some
of those are type accepted in a lot of places and some aren't.
--scott


It's an EM100 G2 C (is that Group C?). The front panel says it's an EW 100 G2.
Freq Range 740-776 MHz. I'm sure it's the worst possible one. I've had it for a
couple of years, I guess.

[philper]

It's an EM100 G2 C (is that Group C?). The front panel says it's an EW 100 G2.
Freq Range 740-776 MHz. I'm sure it's the worst possible one. I've had it for a
couple of years, I guess.

Actually it's a great one right now--there isn't that much going on in
that freq. zone, and there will be even less when the TV broadcasters
move out next month.
My 700MHz+ radios are all working quite well for now. I consulted
with some RF engineers in my area and they confirmed that many of the
potential users of that band (emergency services etc) simply have no
budget to build many of those new systems using that band anytime
soon. If your wireless works, if you can find a clean freq. for it in
your area now, I'd use it until you run into some new interference.
Then you can sell it overseas or whatever having gotten some use out
of it.

Philip Perkins

[Arny Krueger]

"mcp6453" wrote in message


I have a Sennheiser wireless system in one of the old
frequency groups. It's really aggravating because it is
brand new, has never been used, and is now useless. If I
use it anyway, what could I expect?

It will probably work just fine, even though it is running above the 700 MHz
"line of death".

[Scott Dorsey]

mcp6453 wrote:

It's an EM100 G2 C (is that Group C?). The front panel says it's an EW 100 G2.
Freq Range 740-776 MHz. I'm sure it's the worst possible one. I've had it for a
couple of years, I guess.

That's legal for use in Europe.

If you have a broadcast license, you can still legally use 740-805 MHz as a
broadcast auxiliary service on a non-interference basis under FCC part 74.
And, only 763-775 MHz will be allocated to public service use, so even if you
don't have a broadcast license and don't go through SBE coordination, the
740-763 and 775-776 Mhz channels are still only used for private land-mobile
services which are not the kiss of death to interfere with that the public
service bands are.

The FCC frequency allocations can be found at
http://www.fcc.gov/oet/spectrum/table/fcctable.pdf
Read note NG159 with regard to broadcast users. Everybody else is
allowed to use these channels under note NG115.

So... this isn't a GOOD place to have a frequency allocation, but it's
not a terrible place, and under the current regulations you can use it
legally if you're careful. It's best to saty out of 763-775, though.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

[mcp6453[_2_]]

Scott Dorsey wrote:
mcp6453 wrote:
It's an EM100 G2 C (is that Group C?). The front panel says it's an EW 100 G2.
Freq Range 740-776 MHz. I'm sure it's the worst possible one. I've had it for a
couple of years, I guess.

That's legal for use in Europe.

If you have a broadcast license, you can still legally use 740-805 MHz as a
broadcast auxiliary service on a non-interference basis under FCC part 74.
And, only 763-775 MHz will be allocated to public service use, so even if you
don't have a broadcast license and don't go through SBE coordination, the
740-763 and 775-776 Mhz channels are still only used for private land-mobile
services which are not the kiss of death to interfere with that the public
service bands are.

The FCC frequency allocations can be found at
http://www.fcc.gov/oet/spectrum/table/fcctable.pdf
Read note NG159 with regard to broadcast users. Everybody else is
allowed to use these channels under note NG115.

So... this isn't a GOOD place to have a frequency allocation, but it's
not a terrible place, and under the current regulations you can use it
legally if you're careful. It's best to saty out of 763-775, though.
--scott


I took advantage of Sennheiser's rebate program and got a Block B system to
replace my Block C. They gave me $230 for a system that I paid $400 for. That's
not bad.

Thanks for the information, though. It's quite helpful.