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Re: [Amps] FT8 power with the KPA1500

To: amps@contesting.com
Subject: Re: [Amps] FT8 power with the KPA1500
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Thu, 8 Jul 2021 13:47:36 -0700
List-post: <mailto:amps@contesting.com>
Hi Tom,

WSJT modes are WEAK SIGNAL modes, NOT LOW POWER modes. Yes, the 35-40W suggestions are for operation on HF, are entirely appropriate -- UNLESS more power is needed to get over the RX noise level of the station that you're trying to work.

These levels are NOT appropriate for 6,000 mile paths on 160M (for me, Northern Cal to EU), or the wildly variable propagation on 6M, where the signal to noise ratio can go from +30 dB to -20 dB over the course of a few minutes.

And I've been a CW op for 65 years! I regularly contest around 30wpm

73, Jim K9YC

On 7/8/2021 1:31 PM, Thomas Walsh wrote:
Well if you read the ft8 manual, it suggested not running more than say 35 or 
40w,
this is (or was) a low power weak signal mode! With all you guys running legal 
limit
it has become the channel 19 of the ham bands. Sure glad I'm proficient on CW!
Where the real DX is..

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