Re: Noise on Wireless Transmitter
- From: "BillW50" <BillW50@xxxxxxx>
- Date: Fri, 14 Oct 2005 18:00:18 GMT
"jakdedert" <jakdedert@xxxxxxxxxxxxx> wrote in message news:yFR3f.3164$BF5.882@xxxxxxxxxxxxxxxxxxxxxxxxx
Date: Fri, 14 Oct 2005 12:20:16 -0500
> John Davis wrote:
> > Hi,
> >
> > I'm an electronics neophyte, but went out and bought a 2.4 Ghz wireless
> > audio/video transmitter/receiver set from Radio Shack. Trouble is, I can
> > hear the music I'm transmitting from my PC to the sound system, but there's
> > a steady ticking noise. I'm wondering if I'm supposed to put a filter on the
> > device, or is the one I bought just a cheapo?
> >
> > Cheers
> >
> >
> There's about a million things in that 2.4 gHz band. Microwave ovens
> are the worst offenders, but they are intermittant, unless you live near
> a restaurant...telephones, wifi...all sorts of things.
>
> The best you can hope for is to carefully orient the antennas for the
> best reception. There are highly directional antennas available--both
> pre-built and plans...several use a Pringle's potato chip can as a
> waveguide--but these require some soldering ability to implement.
>
> With the above, however, you probably 'could' get a narrow enough
> coverage angle to mechanically filter out any interference.
>
> Google "homebrew 2.4 gHz antennas" or "pringles can antenna" for links.
>
> jak
I get the same problem (ticking sound) between my cordless Siemens
Gigiset 2430 2.4G and my wireless 2.4 video/audio setup. And the
video/audio transmitter limits the range of my WiFi setup (also
using 2.4G) and sometimes WiFi doesn't work at all.
Turn off the video/audio transmitter, the other two 2.4G gets along
just fine. I have another really cheap 2.4G cordless phone and it
knocks out the WiFi really badly. Good thing I stuck it in the
closet for now. Although the Siemens works with the WiFi really
nicely. As the phone can be right next to the WiFi antenna and both
continues just fine.
The 2.4G standard is supposed to be really great for multiple
devices using these frequencies. As it is supposed to be nice to
other devices. As they seek a clear channel and then do there stuff.
And they are supposed to switch channels if the one its using has
some outside interference.
Well this works in many cases, but others it doesn't so well. I
guess one could have too many devices for one. Also I don't believe
those video/audio transmitters ever follow the rules anyway. At
least the RCA one that I have (WVS150) doesn't. As it will only
transmit on 4 available channels and you must select one of them
manually.
The interference between the video/audio receiver and the cordless
phone might be do to the Siemens is supposed to change (hop) 100
channels per second. This is supposed to be a security feature. Thus
the ticking sound.
I bet as jak already mentioned that some other device is causing
your problem. If not you, then someone or something nearby.
__________________________________________________
Bill (using a Toshiba 2595XDVD under Windows 2000)
-- written and edited within WordStar 5.0
.
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