[SADXA] DIgital QSO

[Lawrence Godek]

I typically run my K3 @ 25 W out.  The fan pulling air out of the PA
compartment never gets more than a slight rise in temp even at 40W.  If you
look at the JTAlertX screen there is a place where you can specify your
power level although i don't think it affects the radio but in any case the
highest power level indicated is only 40W.  It's a lot of fun working the
DX with a 20 or 25W signal.  Save the higher power for CW or SSB if you are
so inclined.  I never run more than 100W, just don't need it and i don't
have to be #1 or #1000 in a pileup!  As long as i get thru and make a
single contact, it's ok.  If i miss a DX station, my life will not be any
shorter.

I few days back i worked SV5 in the Dodecanese, along with numerous
Europeans, Belarus and Kzakhistan were among the DX with only 25W of FT8.
You gotta be there when the band is open if you want to get thru.  Or run
high power where you can burn your own path, as some folks are known to do!

Larry
W0OGH


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On Sat, Jul 29, 2017 at 6:30 AM, Wes Stewart <wes_n7ws at triconet.org> wrote:

> It's a weak-signal mode, it's not a low power mode.
>
> The OP discussed with me wanting to make (maybe still does) a 20-meter QSO
> over an 80-mile path.  That's a QRO path length.
>
> My K3 plus KPA500 happily runs at 400-500 W out.  As long as there are
> stations who don't answer me on the first call I'm sure not going to reduce
> power:-)
>
> This is a DX club after all.
>
> Wes  N7WS
>
> On 7/29/2017 4:45 AM, Dave Burnett wrote:
>
>> Which is a good argument for running as little power as needed when
>> running digital modes.  I know there are stations running 50-100 watts (and
>> maybe more) on FT8 right now.  In my opinion it defeats the purpose of
>> weak-signal digital modes (EME, meteor, etc. notwithstanding).  I almost
>> always run 5 watts from my FLEX-1500.  I may not work them all, but I work
>> most.
>>
>> 73,
>> -Dave
>> WD8KRV
>>
>> On 7/28/2017 8:55 PM, Ron Jones wrote:
>>
>>> I'm sure you know this, but remember that the digital modes are almost
>>> all 100% duty cycle. A long transmission of over about 20 watts can put
>>> your rig into thermal shutdown.  We have all been guilty of forgetting!!
>>> Ron. K7RJ
>>>
>>
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