[Boatanchors] 813 grid to filament short

rbethman rbethman at comcast.net
Thu Oct 1 13:44:38 EDT 2015


On 10/1/2015 1:22 PM, Ron Youvan wrote:
>  On 10/01/2015 12:51 PM, Rob Atkinson wrote:
>
>> Glen you can go on to your heart's content about "present FCC
>> regulations" but it doesn't mean doo doo to any real AM operator who
>> isn't all wrapped up in slopbucketese.  I expect you to immediately
>> notify FCC and come clean if your carrier is 375.01 watts or more.  By
>> the way, I don't want you exceeding the speed limit on our public
>> roads either.
>
>   We can legally transmit a 500 or 800 watt carrier as long as we don't
> amplitude modulate the carrier past 1,500 Watts ERP, no one says we
> must modulate the carrier fully.  So a 400 Watt carrier is not a
> problem unless we modulate (that we have) past 1.5 kW.
> I have no experience with any of the modern PEP power meters, but their
> rated accuracy seems to be helpful to our cause.
>
>> I'm now hearing ops say things like "I run X watts peaking at such and
>> such PEP."  How sad.
>> I wonder why I never hear of power limits for AM broadcast stations
>> expressed in PEP.
>
>   AM stations are rated as "mV per meter" (at some distance) because of
> interference they cause to other other stations on the same frequency.
ERP is NOT what we are held to!

That is an entirely different animal than power out of our radios.

Repeaters and certain bands for experimental use get into ERP.

This is a herring tossed into the morass that is way off base.

N0DGN


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