[Lowfer] Last Chance on 136 kHz Rulemaking

[Warren K2ORS]

Craig,
         What you are forcing me to do is file reply comments that 
basically say you don't know what you are talking about.

         How long exactly have you been transmitting on 137kHz?

73 Warren K2ORS & WD2XGJ since 2003!



On 3/26/2013 1:08 PM, craig wasson wrote:
> Warren - you are thinking with common sense.   Remember - this is the
> government and power company lawyers involved here...
>
> I expected to get flamed for my reply comments.  I took a very
> conciliatory approach trying to address every concern raised by the
> power companies so the FCC would have a hard time saying no.  I didn't
> specify how much power would need to be reduced, and since the odds
> are about 1 in 50 that a given power line has a PLC carrier in or
> adjacent to the band, most likely you would not have any restriction.
> I don't know what EIRP it would take to couple 5 millivolts into the
> transmission line as received at the nearest substation, but I'd think
> it would take more than 1 watt.
>
> We all know that interference is difficult to impossible to happen by
> accident.  If you were near a PLC with a carrier right in the band you
> would see it on your receiver and know to avoid it.  The 4 kHz guard
> band they talk about has more to do with crosstalk at substations
> where there may be many lines going in and out and you would want the
> frequencies you transmit on to be separated from ones you receive on.
>>From what I've seen the signal itself is only a few hundred Hz wide
> and I'm sure they use very narrow filters to dig it out of all the
> noise on the power lines.  So if you were a few hundred Hz away even
> with your antenna right under a power line in reality I wouldn't
> expect any interference.
>
> But in the forum of these comments and replies unless you are a PLC
> system engineer it is difficult to make that logical of an argument.
> So I offer the world to the utilities knowing we are not really giving
> away anything.
>
> I hope my sarcasm came across when I addressed their concerns that
> they might have to start obeying the FCC part 15 regulations.  We know
> that to them the FCC part 15 rules are just so much noise.  (pun
> intended)
>
> Personally I think the odds of getting the new band granted are slim
> and I'd rather have an allocation locked in with some temporary
> meaningless restrictions that we could more easily have amended away
> than no band at all.
>
> On a side note - the utilities pretty much said they would be fine
> with a ham allocation at 73 kHz and 600M so that is good going
> forward.
>
> Craig - N6IO
>
>
>
>
>
> On Tue, Mar 26, 2013 at 12:34 PM, Warren K2ORS <k2ors at verizon.net> wrote:
>> Well Craig I'm out of luck if they accept your proposal, I'm 900' from a
>> power line.  I believe that Dex is even closer.
>> I think it's best not to propose additional restrictions especially since I
>> have a decade of operation which PROVES that they are not necessary!
>>
>> 73 Warren
>>
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