[SADXA] 30M question- pt 2

[Richard Solomon]

It's those big yagi's (wink, wink).
Or, as we called them back during the Loran
limits on 160 ... Active Antenna Tuners !

73, Dick, W1KSZ

On Sun, May 10, 2020 at 1:47 PM Jim KF7E <jim_kf7e at cox.net> wrote:

>      The PEP reference came from :
>
>
>
> digital
>
>
>         United States[edit
>         <
> https://en.wikipedia.org/w/index.php?title=WARC_bands&action=edit&section=17
> >]
>
> License class   10.100-10.150
> Ext., Adv., Gen. (200 watts)    CW, narrow-band digital
>
> The USA (Region 2) limits amateur radio users to 200 watts peak envelope
> power <https://en.wikipedia.org/wiki/Peak_envelope_power> on this
> band.^[9] <https://en.wikipedia.org/wiki/WARC_bands#cite_note-9> ^[10]
> <https://en.wikipedia.org/wiki/WARC_bands#cite_note-10>
>
>
>      `Which was on this source: https://en.wikipedia.org/wiki/WARC_bands
>
>      References (9 (10) :
>
>      I know the restrictions on the USA 60m band are EIRP, but I've seen
> it quoted both ways in different sources for 30m...
>
>      Since there a lot of gain antennas in use in USA for 30m, I will
> assume the correct spec is PEP.
>
>      BTW I hear crashes as of 2045Z and see the lightning map is active
> in AZ. Keep your weather eyes open.
>
> Jim
>
>
>
> On 10-May-20 09:52, Jim W wrote:
> > On 5/10/2020 7:16 AM, Jim KF7E wrote:
> >> GM Bill:
> >>
> >>     I believe the ITUs World Administrative Radio Conference in 1979
> >> created the 12, 17, 30m bands, and the implementation of allowable
> >> modes and power was left up to the countries comprising ITU Zones 1,2,3.
> >>
> >>     USA (ITU Region 2) adopted the 200w PEP output limit out of
> >> consideration for interference to other (primary) users still
> >> operating there at the time of adoption.
> >>
> >> Jim  KF7E
> >>
> >>
> >> On 10-May-20 06:21, Bill Mullin wrote:
> >>> I have a question for the low band guru's among us - why is there a
> >>> 200W limit on this band?
> >>>
> >>> 73, Bill  AA4M
> >>>
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> >>
> > I think Jim meant to say ERP (Effective Radiated Power) rather than
> > PEP (Peak Envelope Power).
> >
> > 73,  Jim  W9FI
> >
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