Ken et al:
From the K3S manual, page 8, I find: "Duty Cycle CW and SSB modes,
100% 10 minutes key-down at 25 degrees C. There are some additions
restrictions for 6 meters. This does not seem to agree with the
information of W1HKJ.
I've been regularly running my K3S, s/n 10163 since 8/2015 at rated
output, 100 watts, on all modes, SSB, CW, FT-8, and a couple of others
with out any issues or concerns. I also run the power supply voltage
at 14.5 at the radio during transmit and 14.8 during receive.
73
Bob, K4TAX
On 10/12/2023 7:33 AM, elecraft-requ...@mailman.qth.net wrote:
Message: 16 Date: Wed, 11 Oct 2023 23:20:47 -0400 From: Ken WA8JXM
<wa8...@gmail.com> To: ken.k...@gmail.com Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Digital mode power handling for KAT3
Message-ID:
<CAABDLm2a8Kq1Cs5m4BevKnNcv6Cgv=Zt=nd3oqravvbmm06...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8" Not just the tuner, the K3
is not rated for full power on 100% duty cycle modes. Just like it's
not rated or 100% key down CW. But realize that many of the modes are
half transmit and half listen. Different digital modes have different
duty cycles. >From the W1HKJ.com website: 100% duty cycle: Olivia,
MFSK,RTTY 80%: BPSK, MT63 44% CW 22%:FieldHell There are more modes on
Dave's website, but those are some of the major ones. IDK if Joe
Taylor has similar information on his website for the modes he
supports. It loioks like his modes may require full duty cycle. Ken
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