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Re: LF: declared power on WSPR

To: <[email protected]>
Subject: Re: LF: declared power on WSPR
From: "Graham" <[email protected]>
Date: Tue, 5 Feb 2013 23:10:09 -0000
Importance: Normal
In-reply-to: <72D88C6C0DAA4B379CBBCA695EF47BF0@White>
References: <CAKvcm2es=Zhf-LRz4vSF2mnNXTFJm0XYHyB8EK-x2hW7Fu8UDA@mail.gmail.com> <72D88C6C0DAA4B379CBBCA695EF47BF0@White>
Reply-to: [email protected]
Sender: [email protected]
1 watt  ?     you  can  have  fun in the  data  base , in  comparing  the  various 1 watt  erp's  to see  who has the  best  1 watt  signal ,   a sort of  my  'one'  is better  than  your  'one'  !
 
UK is  set  to  5  watts  : )
 
G..

Sent: Tuesday, February 05, 2013 10:57 PM
Subject: Re: LF: declared power on WSPR

Hi Dimitris,
 
unlike HF, antenna efficiencies at LF can differ vastly from one site to another. So it makes much more sense to state radiated power (ERP) than TX power.
 
Note that under current regulations, ERP's beyond one watt are simply nonexistent, per definitionem ;-)
 
Best 73,
Markus (DF6NM)
 
Sent: Tuesday, February 05, 2013 11:22 PM
Subject: LF: declared power on WSPR

Hi group,

I was browsing the WSPR database for MF and noticed that I am the only
one declaring a 50 W power. My TX power output is 50 W, however the
radiate power is just a tiny fraction of 1 W. What is the protocol for
WSPR? Advertise the Pout or the EIRP?

73, Dimitris VK1SV

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