I need a little more RF tickling the spider's legs to get them to
move off the open wire feeder :-)
Stewart G3RXQ
On Sat, 03 Jan 2009 21:22:49 -0500, p...@n4lcd.com wrote:
I always use 5W, ... when I tune up my external ATU.
I have my K3 set to use 0.2 Watt for tuning my external LDG
tuner as
No problem Wayne.
I always use 5W, and the LP-100A when I tune up my external ATU.
73
Stewart G3RXQ
On Fri, 2 Jan 2009 10:01:08 -0800, wayne burdick wrote:
Stewart Baker wrote:
The K3 output was from ANT1 using the internal ATU. The ATU was
automatically tuned to 1:1 on all bands.
The
I always use 5W, ... when I tune up my external ATU.
Actually, I use 15 watts for tuning both the internal K3 tuner, as well as
my external MFJ-998 tuner. I do this for two reasons:
1) I get much better SWR agreement between 15 watts and full power than I
do with 5 watts and full power,
One thing I think would be really slick is to see a path in which
someone can insert a watt meter such as the LP-100 into the chain
between the output and the antenna tuner where it belongs. I really
like all of the flexibility that the RX ANT path affords... Would be
really neat to be able to
On Sat, 3 Jan 2009 07:34:13 -0600, Phil Debbie Salas wrote:
I always use 5W, ... when I tune up my external ATU.
Actually, I use 15 watts for tuning both the internal K3 tuner,
as well as
my external MFJ-998 tuner. I do this for two reasons:
1) I get much better SWR agreement between 15
Hot switching RF in an external ATU is not to be recommended for
any radio at any level.
BUT - you DO hot-switch your K3's RF output when using any relay-based
auto-tuner, including the internal K3 auto-tuner. So my reasoning is that
I'd rather hot-switch the 100-watt PA at 15 watts rather
On Sat, 3 Jan 2009 08:58:57 -0600, Phil Debbie Salas wrote:
Hot switching RF in an external ATU is not to be recommended
for
any radio at any level.
BUT - you DO hot-switch your K3's RF output when using any
relay-based
auto-tuner, including the internal K3 auto-tuner. So my
reasoning is
Phil,
There is a huge electrical difference between switching an additional
inductor in series with the load (or a capacitor in parallel) than what
is commonly seen as hot-switching which results in the amplifier
seeing an open circuit until the relay closes. A very high RF voltage
will
There is a huge electrical difference between switching an additional
inductor in series with the load (or a capacitor in parallel) than what
is commonly seen as hot-switching which results in the amplifier
seeing an open circuit until the relay closes. A very high RF voltage
will exist if the
Phil,
It is perfectly OK to do that, but I believe you are being more
conservative than necessary. The KAT3 is designed to 'take it' and the
PAs of the K3 (either high power or low power) are also - if that were
not the case, there would be a big warning statement in the manual.
In
I always use 5W, ... when I tune up my external ATU.
I have my K3 set to use 0.2 Watt for tuning my external LDG tuner as
it will theoretically tune with 0.1 Watt.
Works great.
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You
Michael E Fox (N6MEF) wrote:
My factory-assembled K3 is reading 1.0 SWR while my LP-100A and tuner
both agree on about 1.4-1.5.
The KAT3's stray impedance (in bypass mode) may impact the SWR as seen
by the K3's bridge, since this bridge is between the ATU and the LPFs.
This effect would be
Stewart Baker wrote:
The K3 output was from ANT1 using the internal ATU. The ATU was
automatically tuned to 1:1 on all bands.
The results I got for 2:1 VSWR are as follows:-
LP-100 K3
160 1.991.8
80 1.99
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