[600MRG] Antenna efficiency question

[Marshall Cross]

Warren, you make a very important point, ERP not EIRP! 73, Marshall W1HK

-----Original Message-----
From: 600MRG [mailto:600mrg-bounces at w7ekb.com] On Behalf Of Warren K2ORS
Sent: Wednesday, April 20, 2016 8:53 PM
To: 600mrg at w7ekb.com
Subject: Re: [600MRG] Antenna efficiency question

Experimental licenses have the option of specifying output power (mean or peak) OR ERP (NOT EIRP).

WE2XGR and WH2XIL are licensed for 1kW ERP

73 Warren





On 4/20/2016 7:32 PM, Jim Miller wrote:
> As a follow up: have the experimental licenses granted so far 
> specified EIRP or ERP?
>
> TIA
>
> 73
>
> jim ab3cv
>
> On Wed, Apr 20, 2016 at 7:26 PM, Jim Miller <jim at jtmiller.com> wrote:
>
>> Is there any "rule of thumb" that would give me a ball park number 
>> for the expected efficiency of my 67x67ft inverted L that I now use 
>> on 160 if I just added a loading coil at the bottom?
>>
>> If it was (or could be) 10% and the FCC only grants 1w ERP when they 
>> give us an official band then a 10W amp would be all that is needed.
>>
>> OTOH, if it is likely to be closer to 1% then 100w would be needed.
>>
>> TIA
>>
>> 73
>>
>> jim ab3cv
>

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