radio static

[zirath]

Our lcd computer monitor is causing alot of static on some am radio
stations.

Was wondering what type of capacitor to use to filter?

Thanks.

 

[GregS]

Our lcd computer monitor is causing alot of static on some am radio
stations.

Was wondering what type of capacitor to use to filter?

Thanks.

Taking out the trusty RS Flavor Radio, I find all kinds of trash and birdies near the monitor,
along with power line grundge, computer noise, and flourescent light trash.
Try rotating the radio or monitor ??

greg

 

[Sjouke Burry]

Our lcd computer monitor is causing alot of static on some am radio
stations.

Was wondering what type of capacitor to use to filter?

Thanks.

3 ferrite rings, 2 on the binary/analog cable, and one on the
power cable, and if it has an external supply a fourth one on the
low voltage power cord,close to the body of the monitor.
Also grounding the computer and monitor as well as possible(not
always possible).
Short straight leads to a short ground lead(if available).

 

[terry]

Taking out the trusty RS Flavor Radio, I find all kinds of trash and birdies near the monitor,
along with power line grundge, computer noise, and flourescent light trash.
Try rotating the radio or monitor ??

greg

If the monitor is 'radiating' RFI (Radio Frequency Interference)
capaciors may not be the answer. Separating the two items and or
shielding the monitor with a grounded metal box may reduce it.
If you have the monitor and the radio plugged into the same AC supply
outlet pluging the radio in via a line filter 'might' help.

 

[Stacey Chuffo]

Our lcd computer monitor is causing alot of static on some am radio
stations.

Was wondering what type of capacitor to use to filter?

Thanks.

You'll need to move the AM antenna outside.

 

[ian field]

Our lcd computer monitor is causing alot of static on some am radio
stations.

Was wondering what type of capacitor to use to filter?

Thanks.

AM is very susceptible to this kind of interference so there may not be much
you can do, a while back I was having problems with FM reception - at the
time I had access to split type clip-on ferrite collars from scrap equipment
and clipping these onto the mains leads for everything (including the radio)
got the interference down to a bearable level. It might be worth a try if
you can get hold of some ferrite collars, the one piece non-splittable types
are more common but can only be used on leads with removable plugs, you'll
need some splittable clip-on types for the leads with moulded plugs.