Re: Ferrite use on weather stations
- --- In firstname.lastname@example.org, "John Angell" <kb7lyd@...>
> Ferrite - "Snap choke cores" or "ferrite beads" - You see these on
> if items. Anytime you see a large round thing at the end of an adaptorappliance
> cable or device cable for your computer - these are ferrites and are
> designed to suppress unwanted interference ranging from noise from
> use (such as blenders) to suppressing radio frequency interferenceor "RFI"
> Even if you use your station in wireless mode, these may help on thecables
> from your rain bucket & your anemometer to yourtemp/hydro/transmitter unit.
> As I said, I have these at both ends of each cable and can easilyrun 100
> watts on my HF radio with no interference problems. You can get them atthrough
> Radio Shack (cat # 273-069). You want to wrap the cable twice going
> the ferrite, then snap it shut. Have the ferrite as close to theend of the
> cable as possible. I have one located near both the rain bucket &to the
> anemometer on their cables & also located where the cables plug in
> temp/hydro/transmitter unit. Also, I have a cable running from thisunit to
> the weather station (faster sampling of data including wind speed &Hi John, good to see you on the group.
> direction). I have a ferrite located where the cable leaves the
> temp/hydro/transmitter unit and another where it plugs into the weather
> station - so a total of six ferrites.
> If your weather station is affected by any kind of RF or electrical
> interference, these might fix the problem.
> Good luck!
> 73 de John / KB7LYD
> John Angell
> Kirkland Billing
I have a weather station here, and sometimes when I key up on HF
depending on the frequency, the rain gauge goes nuts.
I didn't know Radio Shack sold ferrites. Now I'll have to go
there and pick up a few. Thanks for the tip old man.
You need to check into the Intertie weather net on Thursdays.
So if I get this straight, you have a bead on each end of the
--Deeply Shrouded & Quiet
--Central Control! D-Dial #49