Maybe a new feature
A way to step through or set power out putsay at 5 - 25 - 50 - 75 - 100. I
do like to run barefoot as much as possible, but when the dx shows up and I
have
to tune the amp (into a dummy load) I like to be able to switch quickly to 25
watts without cranking the
Lee -
You can create a macro for each power level, and assign it to a button. I have
one
that sets the power at 45 watts for use with the amp (buttton M4), and another
to set
it to 100 watts (button M1) when I don't use the amp. And then there is the
tune setting.
The K3 utility has a very
...@mailman.qth.net] On Behalf Of Mike
Sent: Saturday, March 12, 2011 1:01 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Power Control Setting Steps
Lee -
You can create a macro for each power level, and assign it to a button. I
have one that sets the power at 45 watts for use with the amp
: [Elecraft] Power Control Setting Steps
I think Lee was asking for one stateful button. Press it once, it goes
to
the first stop. Press it again, it goes to the next stop. Maybe
after
three or four stops it cycles around.
I am thinking of some sort of mechanism that allows successive button
Lee,
If that is your only goal --
There is a built-in key that will drop you power back to some preset
level - and that is the TUNE button.
Set the CONFIG: TUN PWR menu parameter to the power level you want - no
macro needed.
73,
Don W3FPR
On 3/12/2011 3:28 PM, Lee Buller wrote:
Maybe a
For what it is worth, mine (1740) does the same thing on 6 meters. For
example, I can't set the power to 10 watts on 6. The same does not happen on
80 meters.
I also notice that the receive gain is lower in the dead band between 8 and 13
watts.
73 de W6BK
On Aug 14, 2010, at 8:05 AM, k4pi
Just finished installing the DSP board after the return from Aptos and then
loading the latest program updates. I know when turning the power control
there is a known dead spot between 8 and 13 watts which I hope them can
correct soon, but I noticed that there is an increase in the receive
I know when turning the power control there is a known dead spot
between 8 and 13 watts
That only happens on Six Meters and is documented in the manual.
When I turn the Power knob from 8 to 13 in receive mode the
receive gain jumps up 1 S unit almost like the preamp was turned on.
I
Wayne wrote:
We switch the KPA3 out at lower power levels to optimize the drive,
ensuring a high carrier-to-noise ratio at lower-level stages.
In any case, IMD should be quite respectable on 6 m even with the LPA
by itself.
Understood; but the simple term IMD covers a wide range of issues. It
On all other bands, increasing the power level goes in 0.1W steps up 12watts
and then in one watt steps above this.
I'm sure this used to happen on 50MHz as well. However, now the power
increases in 0.1W steps to 8 watts and then jumps to 13W before increasing
in 1W steps. So I can't set an
...@irdixon.plus.com
To: elecraft@mailman.qth.net
Sent: Fri, June 11, 2010 9:59:44 AM
Subject: [Elecraft] Power control on 50MHz
On all other bands, increasing the power level goes in 0.1W steps up 12watts
and then in one watt steps above this.
I'm sure this used to happen on 50MHz as well
Roger,
That is the way it is - at least for the time being. The Low Power
amplifier is limited to 8 watts on 6 meters, as I recall because of IMD
performance.
Wayne has said he will do something to allow the KPA3 to begin above 8
watts on 6 meters, but I have no idea about the schedule for
Don Wilhelm-4 wrote:
That is the way it is - at least for the time being. The Low Power
amplifier is limited to 8 watts on 6 meters, as I recall because of IMD
performance.
The IMD of my LPA is quite bad on 10m as well, at least if my KK7UQ PSK IMD
meter is to be believed. It's worse
I also would like to see this option! As solid state amps become more
prevalent,
more folks will be wanting to be able to adjust the power in that range to make
sure
they do not overdrive their amplifiers. VY 73, Lance
On 6/11/2010 4:26 PM, Julian, G4ILO wrote:
I would really, really like
I would really, really like the option to disable this switching out of the
100W PA altogether. It seems to be an utterly pointless extra complication.
Part of the point is that the DAC used to create the signal at 15 kHz,
which is upconverted, is using fewer bits at lower output levels.
Hi Julian,
We switch the KPA3 out at lower power levels to optimize the drive,
ensuring a high carrier-to-noise ratio at lower-level stages.
In any case, IMD should be quite respectable on 6 m even with the LPA
by itself. If it isn't, we'd be happy to swap LPAs with you so we can
see
My KDSP2 arrived late last week, and as I read the instructions
I realized that I really wanted to upgrade my firmware (to get
to the quick-access keys for turning the denoiser off/on). And
since I was doing that, I should also install the keying
bandwidth mod kit to be a good citizen of the
Can anyone describe how the power output control actually works?
I traced the circuit to the bank 1 part, I have no idea what bank 1 is.
The cpu seems to have some control over the power output, looking
at the output power sense circuit to display output power
on the bar graph and as a digital
Brett,
The power output is totally controlled by the microprocessor.
The power knob (think of it as 'power requested') setting is known to
the microprocessor (full stop of thought here).
When the transmitter is tuned or keyed, the output is measured by the RF
detector (or wattmeter if
Stewart G3RXQ wrote:
It would be very helpful if someone could check
their K2/KPA100/KAT100 and see
if they get the same results.
Yes, my K2/KPA100/KAT100 does the same thing.
Thatr being said: I never tried the DISPLAY/TUNE
feature before to see what the rig will do full-bore,
nor would
On Fri, 31 Dec 2004 06:51:20 -0800 (PST), Steve Jackson wrote:
Stewart G3RXQ wrote:
It would be very helpful if someone could check
their K2/KPA100/KAT100 and see
if they get the same results.
Yes, my K2/KPA100/KAT100 does the same thing.
Thatr being said: I never tried the DISPLAY/TUNE
Stewart Baker wrote,
Since my original mail I have found that this anomaly only occurs when on
transmit, and is independent of whether RF is being generated or not.
I quite often vary my power during a transmission to get signal reports
on different station configurations e.g speech
22 matches
Mail list logo
