[Elecraft] K3 power reduction due to high SWR

2012-04-04 Thread David Stratton
At what point does the SWR have to rise up to before

the K3/10 output power begins to decrease? 

I have been using a TS-830 which is not bothered by 

SWR up to at least 3:1. I cannot get the tuner now so

will I be forced to run very low power if my SWR is 2

or 3 to 1? What about the K3/100? 

 

My antennas are resonant fan dipoles (80, 40, 20, 17)

fed with 250 feet of 72 ohm cable TV coax. 

 

Dave - KO4KL

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[Elecraft] Wrong reference in KX3 Preliminary Owner's Manual

2012-03-16 Thread David Stratton
The reference on page 27 of the KX3 preliminary Owner's Manual 

concerning remote control software leads to an error 404 that the page

does not exist on this site. I assume the link has changed or is wrong

in the manual. I would like to know the correct link and if this also is

the location where one can get the KX3 Utility software.

 

Dave - KO4KL

 

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[Elecraft] KX3 travel/portable protection

2012-03-15 Thread David Stratton
It would be nice if someone would develop

a rubber like slip-on covering for the KX3

like they have for multi-meters.  It would

need openings in the appropriate places and

lettering for the opening designations that it

covers up. Also nice would be a mating plastic

snap-on cover (clear?) that fits over the display

and controls. All this would help keep the KX3 from

damage because the smaller and  more portable

a radio is the more likely it could suffer damage

during travel/portable operations. 

 

Dave - KO4KL

 

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[Elecraft] KX3 and Data modes

2012-03-13 Thread David Stratton
I have not had any experience using data modes in

low power radios. Will the KX3 be nearly as effective

using data modes as it will be using CW? From what I

read in the preliminary manual I guess it is possible to

connect a portable PC with data software to use the

data modes in addition to the self-contained capability.

I would assume SSB to be the least effective mode of

operation among the KX3 modes.

 

Dave - KO4KL

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[Elecraft] K3/100 or KX3 with all the options?

2012-03-13 Thread David Stratton
This question has been going around in my head

and I would like some feedback from Elecraft owners

for I have never had any Elecraft radio equipment.

Which is better to have a K3/100 kit or a KX3 with all

the options including the forthcoming 100 watt PA?

I'm assuming the cost will be about the same.

 

Dave - KO4KL

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[Elecraft] K3/100 or KX3 with all the options

2012-03-13 Thread David Stratton
My radio needs are very modest for I am not a contester,

or DXer, or even one who makes a lot of contacts but I

do listen quite a bit. I do like to have a fine radio and

presently own one - the Kenwood TS-830S. I have no 

intention of parting with it. As far as modes go I operate 

HF primarily SSB and PSK31. I am trying to improve 

my CW ability however I have a problem with CW. Just

like some people have mic fright I have CW contact fright.

I like CW but I just can't do it and enjoy it. The final bit of

information is the fact that my wife hates amateur radio,

which causes me to occasionally put my radio in storage.

 

I will digest all the thoughtful comments many of you made

and make my decision. Although I do operate from home,

you can see that for me perhaps getting away to the local 

state park or some other place away from home might provide 

me with the best operating enjoyment. Doing that would be 

best accomplished with the KX3.

 

Dave - KO4KL

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[Elecraft] KX3 versatility

2012-03-12 Thread David Stratton
I think the versatility of the KX3 is its best-selling point.  It can work
as a complete base station radio with or without the 100 watt amp. It can be
used in the car with its own batteries or connected to the car power jack
(with both + and - fused). It can be used while taking a walk or taking a
vacation. It can be thrown into a briefcase when you go on a business trip.
It can be taken with you to a nursing home or to an assisted living
facility. It can be taken to Field Day and run off solar power.  It can be
taken with you while you're waiting in the car for your wife to do her
shopping - how long does that take?  It can be used in all these situations
and more yet not sacrifice any features you may want or need at any time.
You may not be able to have an antenna to transmit in all these cases but
you can always connect a length of wire and listen. Many hams have multiple
radios for different purposes, but most of us can't afford to do that.  So
for those who can only afford one radio and so needs it to serve them in
many different ways, the KX3 would seem to be just the radio they need to
have.  

Dave - KO4KL

 

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[Elecraft] Understanding the KX3 Block Diagram

2012-03-07 Thread David Stratton
Hoping that I may not be the only Ham puzzled by the block diagram of the
KX3 I am asking that someone please explain it because it is so different
from the superheterodyne radio concept I have become accustomed to in
current amateur radios. I understand direct conversion radios but what is
all the stuff that's there besides the mixer-oscillator and audio amplifier
needed by a direct conversion radio? It seems to me the KX3 block diagram
looks a lot like radios put forth some time ago by Rick Campell KK7B. Pardon
my saying so but the KX3 radio looks like it has a weak front end and a
heavy back end that hopes to make up for the weak front end!

Dave - KO4KL

 

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[Elecraft] Using KX3 and PSK31 with a computer

2012-03-06 Thread David Stratton
The KX3 manual has instructions for using PSK31

and printing text on the display, however nothing is

said about using PSK31 and a computer.  There are

instructions for Data A and AFSK A using a PC but

no instructions about using a PC with PSK D. 

 

Dave - KO4KL

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