-boun...@flex-radio.biz] On Behalf Of Alfred Green
Sent: Friday, February 18, 2011 4:46 PM
To: flexradio@flex-radio.biz
Subject: Re: [Flexradio] How do you keep the house alarm from chirping
On 2/16/2011 12:05 PM, Gary Warner wrote:
Mike,
Too bad I was not into amateur radio when the house was
, February 18, 2011 4:46 PM
To: flexradio@flex-radio.biz
Subject: Re: [Flexradio] How do you keep the house alarm from chirping
On 2/16/2011 12:05 PM, Gary Warner wrote:
> Mike,
>
> Too bad I was not into amateur radio when the house was built. That
> is going to be a bit difficult to
On 2/16/2011 12:05 PM, Gary Warner wrote:
Mike,
Too bad I was not into amateur radio when the house was built. That
is going to be a bit difficult to do now.
My suggestion would be to disconnect the alarm system and get a couple
of pitbulls. My babies don't chirp no matter how much power I
Everyone is thinking that it may be RFI, and that's still a possibility.
However, is there a chance that the linear is drawing too much current on
the household AC when you tune over 500 watts? Some of the smoke alarms
sense power line faults.
--
Steve Miller
W6SDM
__
Craig,
I am going to raise the antenna first, but it may get to installing a
whole bunch of ferrites.
Gary
WG1I
On 2/16/2011 8:39 PM, Craig Sande wrote:
I had the same problem with chirping smoke detectors and burglar alarm
system when I operated with my amplifier. I remedied the situation
I had the same problem with chirping smoke detectors and burglar alarm
system when I operated with my amplifier. I remedied the situation by using
snap on ferrite beads on each sensor and the wires into and out of the alarm
box as well as at each control pad.
Craig, AE7I
_
Ha!
Reminded me of a single chip keyer I built back in my 'post novice' days.
Tiny little chip, 9 volt battery
and
30lbs of .01 disc caps.
man you couldn't op at any power level without the rf locking that keyer on.
On 2/16/2011 2:37 PM, Ray - K9DUR wrote:
I had the same problem with my electro
Ray,
Thanks. This sounds like something that is easily doable. I am
hoping this will solve the problem
Gary
On 2/16/2011 12:46 PM, Ray - K9DUR wrote:
Gary,
Yes, if the wiring is in the walls, running shielded cable would be a bit
difficult, but that should not be necessary. As I said i
Gary,
Yes, if the wiring is in the walls, running shielded cable would be a bit
difficult, but that should not be necessary. As I said in my earlier post,
liberal use of some .01 uF by-pass capacitors on the sensor lines right at
the control panel would be a good start. If that doesn't take care
I had the same problem with my electronic door bell @ 100 Watts. Every time
I transmitted on 40m, I rang the door bell. Solution was a .01 uF capacitor
across the button contacts.
In your case, try some by-pass capacitors (.01 uF is a good start) across
the inputs to your alarm system. Should n
Clamp-on ferrite can help a lot.
If there is slack in the cable, you
might get two or three turns through
the core.
On 02/16/2011 02:05 PM, Gary Warner wrote:
Mike,
Too bad I was not into amateur radio when the house was built.
That is going to be a bit difficult to do now.
Gary
WG1I
___
Mike,
Too bad I was not into amateur radio when the house was built. That is
going to be a bit difficult to do now.
Gary
WG1I
On 2/16/2011 10:37 AM, AA8K73 GMail wrote:
Those alarm wires are excellent antennas.
It's hard to make those radio waves stop
at the house walls.
For my house ala
The antenna is a horizontal dipole that is 140 feet long. It runs over
the house, and is at present about 20 feet higher than our two story
house at the lowest point. I plan to raise the antenna another 40 up
as soon as my pneumatic launcher gets here. All power in my
neighborhood is unde
I'm a retired FF, and have Smokes and CO's on every level of my basement
+ 2 storie home.
And my tower is on the back wall and the 80/40 dipole hangs just 10'
above the ridge of my house.
I went through a couple of brands and now use 'FireX' purchased at Home
Depot.
No false alarms. They are
Those alarm wires are excellent antennas.
It's hard to make those radio waves stop
at the house walls.
For my house alarm system, I ran shielded
wire to each sensor and have ferrite on
each cable where it enters the alarm panel.
No RFI problems with the house alarm yet.
I also have shielded ca
Is your antenna close to house wiring? Is you antenna running close to and
parallel to incoming power lines?
73,
Ken W2DTC
"Everything works wonderfully, except now my house alarm keeps chirping like it
is going from electric
company power to battery backup when I transmit above about 500 wa
To all,
I know that this is a bit off the Flex Radio prime topic, but I just
added an amplifier to my Flex 3000. Everything works wonderfully,
except now my house alarm keeps chirping like it is going from electric
company power to battery backup when I transmit above about 500 watts.
In f
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