Hello Dave,
I have a K1 that I’m looking to sell, and took a look at the power output
before listing it. Power output is as follows:
40 meters 5.2 watts
30 meters 4.5 watts
20 meters 1.3 watts
17 meters 0.7 watts
These are obviously not the expected power output levels. Power supply
Numbers using the Elecraft 20 watt dummy load rather than resonated antennas:
40 M 4.8 W
30 M 5.5 W
20 M2.0 W
15 M1.7 W
Dave K9SW
> On May 11, 2023, at 6:52 PM, DAVID MOORMAN wrote:
>
> I have a K1 that I’m looking to sell, and took a look at the power output
> before
Hello David,
The same issue also exists in my two K1. Waiting for help
73,
Vincent BH5HTF
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Post:
The K1 should develop greater than 5 watts on any band as long as the
power supply during transmit is greater than 12 volts.
I suggest turning to the Troubleshooting section of the Owner's manual
and doing the Transmit Signal Tracing procedures to determine which
stage is failing. Once that
Two watts is about what I get on 15-m and I use a 12v laptop PS. It barely gets
5 watts on 40-m. When using the station 13.8v PS it gets 7 watts on 40-m.
I'm looking for a 14v laptop brick. I've seen them but need to capture one
72,
Brian, K0DTJ
the K1 has the ability to produce only slightly less power on 15m.
AND it has the ability to handle up to 15v input.. which helps make more power
on 15m.
Most K1s that I've had here can make 4+ watts on 15m. However, at that same
time
the reception difference between 2 to 4 watts out.. is
> What should the power output be from a K1 set to maximum power on 15 meters?
> I can only get 2 watts. This seems too low.
> ...Any suggestions where to look?
My 15-year-old K1 serial 175 (R.I.P...lightening strike!) with 13.8vdc supply
could easily produce 6 watts on 15m, using either a
John,
Even a software guy may be able to read a schematic - at least to the
extent that it shows 'which is connected to what'.
Do check the schematic and you should see that the only thing between
RFC5 and the collector of Q6 is T3. Check that toroid carefully for
poorly tinned and soldered
One experiment to try is to transmit into a dummy load of 75 -100 or so
ohms. The idea is to produce a consistent SWR other than 1:1 to see how
things behave in non-ideal, but consistent circumstances. I am not sure
what you will see, but the results might help with understanding.
Elwood C.
Elwood,
The K1 (without the KAT1) uses a diode detector to determine the amount
of RF Voltage at the output (just like using an RF Probe). The power is
calculated in the microprocessor with the assumption that the load is 50
ohms resistive.
Of course, your antenna is not likely to be 50
Ted,
That is about normal for a good K1. 5 watts or more on all bands is to
be expected - most will do more.
73,
Don W3FPR
Ted Holland wrote:
Hi folks:
Just finished a 4-band k1, and thought I had low power out on all
bands. Turns out the cable from rig to meter was open on the ground
I will echo what was already mentioned. Your measurements are about the same
as what I get on my K1. 15 meters has always been a bit lower than the
other bands.
One other thing I have noticed is that the power readout on the K1 is not
linear across the bands. I checked mine with a fairly
:[EMAIL PROTECTED] On Behalf Of WA6L
Sent: Monday, January 28, 2008 1:06 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K1 power output question
I will echo what was already mentioned. Your measurements are about the
same
as what I get on my K1. 15 meters has always been a bit lower than
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