----- Original Message -----
From: "VE6WZ_Steve"
> Hello All:
>
> Thank you to everyone that responded to my question both on and off the
> reflector.
> My summary from the many responses is that the effected TV probably has
> capacity (touch) controls.
> I suspect this is true, but I have been unable to visit my neighbor to
> check
> this and do any further tests.
> Unfortunately, my neighbors are leavening tonight for a sunny week in 6Y,
> so
> I will be unable to check and undertake further testing until they get
> back.
> I promise to report back to the reflector with my findings as soon as
> possible.
> I must confess I am somewhat concerned that if proximity-capacity switches
> are the culprit, a solution might not be found.
>
> de steve ve6wz.
>
> --------------------------------------------------
> From: "R March"
>
>> Steve, I have had problems with Samsung monitors because they have
>> capacitive switches built in to the panel body. The capacitive touch
>> switches are extremely sensitive to RF and are often stimulated directly.
>> If the TV uses the same switches, I will give you ten to one odds that is
>> the problem. There is nothing that can be done except return the TV. I
>> had to return my monitor. Good Luck, Bob N7UA
>>
>> On 12/31/2011 12:51 PM, VE6WZ_Steve wrote:
>>> Thanks for the few responses I have received already.
>>>
>>> I repeat as stated in my original post....I have isolated ALL
>>> connections
>>> going to the TV.....there is NOTHING connected to the TV except the
>>> power.
>>> I understand the common mode problem, and have much experience using
>>> torroids for RFI ingress. I am well supplied with various Type 31
>>> material snap-ons and large torroids.
>>> This "seems" like a unique situation were ingress is not via external
>>> connection, but I will try a brute force filter in case ingress is via
>>> differential mode on the power line....tnx Dave.
>>>
>>> BTW...This is a new problem, and I have no problem with any TVs in my
>>> house...it is just my neighbors which is a very late model (only one
>>> month old) unit.
>>>
>>> A bit more info on the station:
>>>
>>> My antenna is perfectly resonant homebrew 2 el. Yagi at 100'.
>>> There are 2 very robust choke baluns in series at the feedpoint, (one
>>> solenoid and another material 31 torroid).
>>> The antenna is matched at the feedpoint to accommodate the narrow
>>> bandwidth
>>> of the Yagi.
>>> http://www.qsl.net/ve6wz/intro.htm
>>>
>>>
>>> Steve ve6wz.
>>>
>>>
>>> From: David Bowker
>>>
>>>
>>> Steve,
>>>
>>> A bit more info would be helpful to assist in diagnosing the possible
>>> methods of ingress of RF into the TV, such as:
>>>
>>> * Does the TV receive it's input signal from CATV, SATELLITE DISH, or
>>> OTA
>>> antenna?
>>>
>>> * Does it turn ON/OFF and VOL change with the (antenna/CATV/satellite)
>>> TV
>>> signal input disconnected?
>>>
>>> A toroid choke on the power line entrance to the TV may not be effective
>>> if the RF is entering into the power utility system as a differential
>>> mode signal traveling on the utility entrance to the dwelling. If this
>>> is the case, only a brute force power line filter would be effective.
>>>
>>> I have a Samsung 37" LCD TV and run 1.5 kW to 4 element vertical arrays
>>> on 80M& 40M which are 150' from my DirecTV satellite dish and when the
>>> array is pointing directly at the dish (~ 6 kW ERP) I do not experience
>>> any abnomalies.
>>>
>>> 73, Dave, K1FK
>>> Fort Kent, ME
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