[RFI] Broadband over Power Line (BPL) radio interference
K4IA at aol.com
K4IA at aol.com
Fri Jul 16 22:16:14 EDT 2004
In a message dated 7/16/2004 14:48:20 PM Eastern Daylight Time,
w1rfi at arrl.org writes:
The few posts I have see from hams offering to "solve" the BPL problem by
parking 500-watt mobile stations under the lines or engaging in some good old
target practice should alert anyone that such information should not be
Ok, clearly shooting out their lights is illegal and subjects you to
criminal penalties but . . .
What is wrong with operating a 500 watt mobile station under their lines?
1. You are exercising your government-given right conferred upon you by the
FCC. Are we supposed to run and hide? Are hams only allowed to operate
where they don't interfere with unlicensed services? Am I to stop transmitting
because my neighbors touch-light is flashing? That turns the rules upside
down. I think not.
2. By operating under their lines, you are giving the BPL proponents chance
to *prove* their system is not going to crash in the presence of other
signals. After all, they make the claim, we are giving them the opportunity to
actually try it out. Seems like we are providing a public service. If they
are right, they have nothing to fear and we won't be bothering them. If they
are wrong, see point 3 below.
3. Widows, pension funds, retirement accounts and others will invest
millions of dollars in this technology only to lose their shirts when it all falls
apart. If the system fails under stress-testing, we provide a valuable
public service and save all those unsophisticated investors serious financial
Seems to me all this nonsense about whether we should measure their signal's
field strengths in micro-volts at 30 meters or 50 meters from the line is
playing into their hands. It is technobabble. No one cares if it interferes
with hams. The system works or it doesn't. If it doesn't work, it is dead.
Fredericksburg, Virginia USA
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