[Lowfer] Last Chance on 136 kHz Rulemaking

[craig wasson]

What specifically do you disagree with?   If I'm wrong, please do file
while there is time!


Craig - N6IO


On Tue, Mar 26, 2013 at 1:25 PM, Warren K2ORS <k2ors at verizon.net> wrote:
> 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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