Re: RFI and DSC systems

["Crash Gordon" <webmaster@xxxxxxxxxxxxxxxxxxxxx>]

I'd stay away from a cap, but nice big ferrite couldn't hoit.


"MikeSus" <mikesus@xxxxxxxxx> wrote in message
news:1183584602.564370.212950@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| Thats a good thought on the keypad runs.  Can I safely put a cap
| across the data line?
|
| I did try the old wrap around the screwdriver trick on the cable to
| the keypad with the 433 receiver and it seemed to help.  A couple more
| snap on ferrite's and I might be good to go...
|
| On Jul 4, 1:49 pm, "Bob La Londe" <nos...@xxxxxxxxx> wrote:
| > "Crash Gordon" <webmas...@xxxxxxxxxxxxxxxxxxxxx> wrote in message
| >
| > news:468bc1b8$0$497$815e3792@xxxxxxxxxxxxxxxxx
| >
| > > ot... hot enough for ya?
| > > sheesh...my pool water is 92f this morning!
| >
| > The water temp in the river was hoverng around 80 last weekend.  I may
go do
| > a little fishing today.
| >
| >
| >
| >
| >
| > > "Bob La Londe" <nos...@xxxxxxxxx> wrote in message
| > >news:468bb469$0$16402$88260bb3@xxxxxxxxxxxxxxxxxxxx
| > > |
| > > | "Crash Gordon" <webmas...@xxxxxxxxxxxxxxxxxxxxx> wrote in message
| > > |news:468ba7e0$0$502$815e3792@xxxxxxxxxxxxxxxxx
| > > | > Not that familiar with DSC, but if the panic fire is from the
| > > keypad..have
| > > | > you hardened the keypad run?
| > > | > Ground only one side of the shield...but you would know that being
a
| > > ham.
| > > | >
| > > |
| > > | And all grounds go to the same point.
| > > |
| > > |
| > > | >
| > > | >
| > > | >
| > > | >
| > > | > "MikeSus" <mike...@xxxxxxxxx> wrote in message
| > > | >news:1183549011.863308.169320@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| > > | > | Has anyone hardened a DSC System against RFI?  I am an amateur
radio
| > > | > | operator and had a problem on almost all frequencies until I put
in
| > > .
| > > | > | 001 mfd caps on each loop, and put a snap on choke around the
| > > hardwire
| > > | > | lines.  Now the only problem is when I transmit on 80m
(3.700Mhz)
| > > | > | After a short while of transmitting, I get an expansion module
| > > failure
| > > | > | message and then a panic fire.  I do have the wireless Fire
Alarm
| > > and
| > > | > | thought it could be gating, but that would not explain the
expansion
| > > | > | module failure message.  Any ideas?
| > > | > |
| > > | >
| > > | >
| > > |
| > > |
| > > |
| > > | --
| > > | Posted via a free Usenet account fromhttp://www.teranews.com
| > > |
| >
| > --
| > Posted via a free Usenet account fromhttp://www.teranews.com
|
|