hello everyone.

i'm looking into having my video monitor go wireless. will this
interfere with sensitive condenser microphone recordings?

my basic instincts say to avoid it since it would put some sort of RF
into the air. but someone who actually knows something about
electronics would be able to say if it's in a different frequency
band.

right now i have my kvm on an rj-45 remote setup, but I'd like to go
wireless so i can take the stuff back and forth into an iso booth
easily.

will the real EE's please stand up, please stand up, please stand up.

question for EE's on rec.

Group: rec.audio.pro Date: Sat, Nov 20, 2004, 6:49pm (EST-3) From:
(xy)
hello everyone.
i'm looking into having my video monitor go wireless. will this
interfere with sensitive condenser microphone recordings?
my basic instincts say to avoid it since it would put some sort of RF
into the air. but someone who actually knows something about electronics
would be able to say if it's in a different frequency band.
right now i have my kvm on an rj-45 remote setup, but I'd like to go
wireless so i can take the stuff back and forth into an iso booth
easily.
will the real EE's please stand up, please stand up, please stand up.


Lots of variables. Depends on the transmitter output, distance from the
mic, some mics are more susceptable than others. Why not try it and see
what works for you.

Eric

Eric's response is right, but generally there should be no problem with
higher quality condenser mics, a lot of them are used with wireless cameras,
monitors, etc. There are a few bad old studio mics out there that have
serious rf problems but only a few. Most modern condenser mics have good
filtering for all but high power rf.

--
Josephson Engineering / Santa Cruz CA / www.josephson.com

Eric's response is right, but generally there should be no problem with
higher quality condenser mics, a lot of them are used with wireless cameras,
monitors, etc. There are a few bad old studio mics out there that have
serious rf problems but only a few. Most modern condenser mics have good
filtering for all but high power rf.

--
Josephson Engineering / Santa Cruz CA / www.josephson.com

question for EE's on rec.

Group: rec.audio.pro Date: Sat, Nov 20, 2004, 6:49pm (EST-3) From:
(xy)
hello everyone.
i'm looking into having my video monitor go wireless. will this
interfere with sensitive condenser microphone recordings?
my basic instincts say to avoid it since it would put some sort of RF
into the air. but someone who actually knows something about electronics
would be able to say if it's in a different frequency band.
right now i have my kvm on an rj-45 remote setup, but I'd like to go
wireless so i can take the stuff back and forth into an iso booth
easily.
will the real EE's please stand up, please stand up, please stand up.


Lots of variables. Depends on the transmitter output, distance from the
mic, some mics are more susceptable than others. Why not try it and see
what works for you.

Eric

standing up

While a neophyte at the rap game, I can tell you that you may run into
some problems depending on the technology used. It has to do with
these new 802.11g wireless "double the speed" base stations (the ones
with two antennas). While the normal single channel devices will
present no lower frequency noise, the two antennas together at slightly
diferent requencies might creat some noise that you could pick up.
This is similar to a beat frequency in the audio spectrum.

Hope this helps,

Girmann

On 2004-11-20 21:49:23 -0500, (xy) said:

hello everyone.

i'm looking into having my video monitor go wireless. will this
interfere with sensitive condenser microphone recordings?

my basic instincts say to avoid it since it would put some sort of RF
into the air. but someone who actually knows something about
electronics would be able to say if it's in a different frequency
band.

right now i have my kvm on an rj-45 remote setup, but I'd like to go
wireless so i can take the stuff back and forth into an iso booth
easily.

will the real EE's please stand up, please stand up, please stand up.

I'm looking into having my video monitor go wireless. Will this
interfere with sensitive condenser microphone recordings?

My basic instincts say to avoid it since it would put some sort
of RF into the air. But someone who actually knows something
about electronics would be able to say if it's in a different
frequency band.

There's always "some sort of RF into the air" -- radio and TV stations, computer
equipment, etc. Whether it interferes with a particular piece of equipment
depends on the susceptibility of that equipment.

The odds are pretty good that 802.11g equipment will have no effect on your
mics, or anything else.

William Sommerwerck wrote:
I'm looking into having my video monitor go wireless. Will this
interfere with sensitive condenser microphone recordings?

My basic instincts say to avoid it since it would put some sort
of RF into the air. But someone who actually knows something
about electronics would be able to say if it's in a different
frequency band.

There's always "some sort of RF into the air" -- radio and TV stations, computer
equipment, etc. Whether it interferes with a particular piece of equipment
depends on the susceptibility of that equipment.

The odds are pretty good that 802.11g equipment will have no effect on your
mics, or anything else.

Just a second... since when have "wireless video monitors" used 802.11g?
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

There's always "some sort of RF into the air" -- radio and TV stations,
computer
equipment, etc. Whether it interferes with a particular piece of equipment
depends on the susceptibility of that equipment.

The odds are pretty good that 802.11g equipment will have no effect on your
mics, or anything else.

Just a second... since when have "wireless video monitors" used 802.11g?

Agreed, but that's what he said he was using. I don't believe 802.11g (which is
actually a unit that can handle all the 802.11 frequencies and formats) has
sufficient bandwidth.

William Sommerwerck wrote:
There's always "some sort of RF into the air" -- radio and TV stations,
computer
equipment, etc. Whether it interferes with a particular piece of equipment
depends on the susceptibility of that equipment.

The odds are pretty good that 802.11g equipment will have no effect on your
mics, or anything else.

Just a second... since when have "wireless video monitors" used 802.11g?

Agreed, but that's what he said he was using. I don't believe 802.11g (which is
actually a unit that can handle all the 802.11 frequencies and formats) has
sufficient bandwidth.

It's also specifically a packet-switching format, not something that can
be easily adapted for wideband video.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

William, not ^entirely^ true.

802.11g can handle 802.11g and 802.11b only. It cannot handle the
802.11a formats or frequencies. If you were to saturate the 54mb/s
stream, you could get 800x600 video at 14fps and 8 bit color without
compression. Of course, the entire channel isn't usable but there's
plenty of bandwidth there. Heck, just doing a back of the hand
calculation shows that a 9.6GB DVD (like the ones you get at the video
store) hold 2 hours of video (compressed) translates into 1.3MB/s or
10.6Mb/s. That is roughly 1/5 of an 802.11g stream - plenty of
headroom.

--Girmann

On 2004-11-26 08:38:13 -0500, "William Sommerwerck" said:

There's always "some sort of RF into the air" -- radio and TV stations,
computer
equipment, etc. Whether it interferes with a particular piece of equipment
depends on the susceptibility of that equipment.

The odds are pretty good that 802.11g equipment will have no effect on your
mics, or anything else.

Just a second... since when have "wireless video monitors" used 802.11g?

Agreed, but that's what he said he was using. I don't believe 802.11g (which is
actually a unit that can handle all the 802.11 frequencies and formats) has
sufficient bandwidth.

Scott,

He said that he had his KVM hooked up through RJ-45. I assumed
(incorrectly?) that he meant Ethernet and that he could use wireles
ethernet to connect to this and the video monitors. I wasn't trying to
imply that that is what he was using - just identifying a rare case
that ^might^ get him into trouble.

--girmann

On 2004-11-26 09:30:49 -0500, (Scott Dorsey) said:

William Sommerwerck wrote:
I'm looking into having my video monitor go wireless. Will this
interfere with sensitive condenser microphone recordings?

My basic instincts say to avoid it since it would put some sort
of RF into the air. But someone who actually knows something
about electronics would be able to say if it's in a different
frequency band.

There's always "some sort of RF into the air" -- radio and TV stations,
computer
equipment, etc. Whether it interferes with a particular piece of equipment
depends on the susceptibility of that equipment.

The odds are pretty good that 802.11g equipment will have no effect on your
mics, or anything else.

Just a second... since when have "wireless video monitors" used 802.11g?
--scott

the rj-45 box i'm using now is somewhat surprisingly not ethernet.
it's a belkin box that converts your kvm into a cat-5 signal via a
translator box, then reconverts it on the other end via another
translator box.

it works fine, but my next step is to go wireless so i can track
myself in my iso booth and then bring the stuff back out for mixing.

i'm hoping there will be a wireless keyboard/mouse powerful enough to
go through all that. then it's just a matter of rigging up the
wireless monitor.

they make integrated wireless kvm's, but they seem to cost about
$500-1000.

another idea is to simply put a second monitor, mouse and keyboard in
the iso booth, and simply switch the cat-5 cable whenever i need to go
into the iso booth.

that actually might be a bit easier, since even if I moved the
monitor, i would still have to hook up the power cable inside the iso
booth and go through the hassle of lugging the stuff in and out.

one cool tip that you guys probably already know (because i'm the
relative beginner here), is that LCD monitors don't emit rfi, so they
are good to have in recording situations compared to bulky CRT
monitors.

girmann wrote:

standing up

While a neophyte at the rap game, I can tell you that you may run into
some problems depending on the technology used. It has to do with
these new 802.11g wireless "double the speed" base stations (the ones
with two antennas). While the normal single channel devices will
present no lower frequency noise, the two antennas together at slightly
diferent requencies might creat some noise that you could pick up.
This is similar to a beat frequency in the audio spectrum.

No it isn't actually.


Graham

xy wrote:

hello everyone.

i'm looking into having my video monitor go wireless. will this
interfere with sensitive condenser microphone recordings?

my basic instincts say to avoid it since it would put some sort of RF
into the air. but someone who actually knows something about
electronics would be able to say if it's in a different frequency
band.

right now i have my kvm on an rj-45 remote setup, but I'd like to go
wireless so i can take the stuff back and forth into an iso booth
easily.

will the real EE's please stand up, please stand up, please stand up.

Wireless *video monitors* ?

That must eat up some bandwidth ! Sheesh ! Or are you simply referring to
some form of networking ?

I assume it's using the 2.4GHz ISM ( industrial scientific medical ) band
? Along with wireless networking, bluetooth devices and microwave
ovens. :-)

I doubt that you;'ll have a problem since transmit levels are regulated (
by law - not technology ) to a very low power.


You're more likely to have a problem picking up a local AM station to be
honest.


Graham

In article writes:

I'm getting a 43" LCD month..I need to mix from the center of the room and
still see.

Not that's getting up to about the size of my console. I always said
that when I could get a monitor as large as my console, I'd be
comfortable mixing on it.


--
I'm really Mike Rivers )
However, until the spam goes away or Hell freezes over,
lots of IP addresses are blocked from this system. If
you e-mail me and it bounces, use your secret decoder ring
and reach me he double-m-eleven-double-zero at yahoo

I'm getting a 43" LCD month..I need to mix from the center of the room and
still see.

Not that's getting up to about the size of my console. I always said
that when I could get a monitor as large as my console, I'd be
comfortable mixing on it.


That's kinda the point..plus everyone in the room can see what's going
on..hoping a little visual reinforcement may help everyone be involved and turn
into LONGER mix sessions...hehe!


John A. Chiara
SOS Recording Studio
Live Sound Inc.
Albany, NY
www.sosrecording.net
518-449-1637

I'm getting a 43" LCD month..I need to mix from the center of the room and
still see.

Not that's getting up to about the size of my console. I always said
that when I could get a monitor as large as my console, I'd be
comfortable mixing on it.


That's kinda the point..plus everyone in the room can see what's going
on..hoping a little visual reinforcement may help everyone be involved and turn
into LONGER mix sessions...hehe!


John A. Chiara
SOS Recording Studio
Live Sound Inc.
Albany, NY
www.sosrecording.net
518-449-1637