[SADXA] 30M question- pt 2
Jim KF7E
jim_kf7e at cox.net
Sun May 10 16:46:52 EDT 2020
The PEP reference came from :
digital
United States[edit
<https://en.wikipedia.org/w/index.php?title=WARC_bands&action=edit§ion=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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