# [CQ-Contest] What's with the power = 0 watts exchange?

John Geiger af5cc2 at gmail.com
Sun Feb 18 19:44:05 EST 2018

```I worked 2 of those 0 and 00 stations also. Both were from KP4. Missed the
10 meter opening today, did hear V51YJ yesterday on 15 but didn't get him.
Nice to hear 15 open to other hemispheres at this point in the solar cycle.

On Sun, Feb 18, 2018 at 12:58 PM, John W <xnewyorka at hotmail.com> wrote:

> I'm playing a little in the ARRL DX contest and I've noticed something new
> that I don't recall from previous years.  Several DX stations have sent
> their power as zero watts.  I've received  5NN T,   5NN TT,  and 5NN TTT
>  so far.
>
> (For some reason, nobody is sending something more precise like 0.0
> (would that be  TRT?)
>
>
> What is the reason for this?   I must have missed the memo.
>
>
> At least one of the stations was in Puerto Rico. So I was wondering if his
> zero meant that he has no commercial power at his station.  Maybe I'm
> reading into it too much?
>
>
> And one South American sent "LP" for his power.  So does that mean he is
> using a generator that runs on Liquid Propane?  😉
>
>
> The rules at http://www.arrl.org/arrl-dx say:
>
>
> 4.2 DX stations send signal report and power (number or abbreviation
> indicating approximate transmitter output power).
>
>
> Where I come from, transmitter power is measured in units called WATTS.
>
> So I would expect the exchange to be either a number, or an abbreviation
> for a number, for example using 'cut' numbers.   "LP" is not exactly that.
>  But I get it - it probably means 100 watts, or at least "no amplifier".
>  But what does TTT mean?  That must mean "approximately 0.499 watts or
> less".   Yet the guy was 10 dB over S9, so I doubt that.
>
>
> Ahh well, got to do something to keep it interesting when condx are in the
> toilet.
>
>
> Hope everybody caught the brief but glorious 10m opening this afternoon.
>
> P40W was 15 dB over S9 in NNJ for more than 10 minutes!
>
>
> 73,
>
>
> John
>
> W2ID
>
>
>
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```