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Topic:
Pronto RF interference from Plasmas
This thread has 7 replies. Displaying all posts.
Post 1 made on Friday April 8, 2005 at 19:22
Bimal Lakshman
Lurking Member
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March 2005
8
At a project I have a Panasonic Plasma TV. When the TV is turned on I lose reception on all AM channels on my tuner. Also, I have a Pronto Pro TSU-7000, with an RF extender, again, when the TV is turned on, I lose communication between the Pronto handheld and the RF extender. I have never experienced this phenomenon before, nor did I ever foresee it. Any insight or solutions will be highly appreciated.

Thanks
Bimal ('B') Lakshman
[email protected]
Post 2 made on Friday April 8, 2005 at 20:03
Greg C
Super Member
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October 2002
2,589
Is your plasma a commercial model or a consumer model?
CEDIA University Designer CAT Team Member
CEDIA University Instructor
CEDIA Registered Outreach Instructor
OP | Post 3 made on Saturday April 9, 2005 at 01:04
Bimal Lakshman
Lurking Member
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8
It is a Panasonic Viera 50" ... TH-50PX20
Bimal ('B') Lakshman
[email protected]
Post 4 made on Saturday April 9, 2005 at 11:21
Dawn Gordon Luks
Founding Member
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September 2001
1,178
Bimal,

Try moving the RF transmitter as far away as possible from the plasma display. Also, you might want to change the channel ID on the Pronto and RF unit to see if that helps. Also, I'm assuming you're using the emitters that came with the Pronto, if not try the Pronto emitters.

In addition, use black electrical tape to cover the main IR emitter on the RFX main transmitter unit.

Dawn


Dawn
Post 5 made on Saturday April 9, 2005 at 11:58
2nd rick
Super Member
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August 2002
4,521
On 04/09/05 11:21 ET, Dawn Gordon Luks said...
In addition, use black electrical tape to cover
the main IR emitter on the RFX main transmitter
unit.

It may not be the RF system, it may be the plasma flooding each of the components. Unless the equipment is behind closed doors or in another room, the RF solution cannot prevent the plasma from flooding the IR receivers on the front panels of the individual components.

Emitters are supposed to pass IR through them as well as emitting their own signal, this is so the remote works line of sight as well. If there are no doors, block the front of the components with cardboard or somthing similar that totally covers the front panels from every possible angle.

Imagine the plasma as a 4 bulb flourescent fixture facing out into the room, wherever light would shine and reflect in that example, crap in the IR spectrum is going to be from your plasma.

Xantech makes a mouse shield, but thy are ugly and sometimes the entire window on the front panel needs to be covered with strips of electrical tape to keep IR spectrum noise out of the receiver.
Rick Murphy
Troy, MI
Post 6 made on Saturday April 9, 2005 at 17:37
dickybird
Long Time Member
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Posts:
November 2004
136
Are there wireless headphones attached to the system?
Dicky Bird
Post 7 made on Saturday April 9, 2005 at 18:45
Jay In Chicago
Founding Member
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Posts:
December 2001
1,658
AM is a four letter word when they are near Plasmas.. I love AM... Some receivers are better than others...

Cee also Crane.
Jet Rack ... It's what's for breakfast
OP | Post 8 made on Saturday April 9, 2005 at 19:01
Bimal Lakshman
Lurking Member
Joined:
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March 2005
8
Duckybird... No there is no wireless headphone system
Bimal ('B') Lakshman
[email protected]


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