Edward KL7UW wrote:
As an alternative, might you consider a small amplifier? TAPR is
offering a 20w HF/6m amplifier called the Pennywhistle.
http://www.tapr.org/kits_pw.html
drives with 1/4w and runs on 12vdc.
An external amp in a clamp-on case that fits on the bottom might be a good
Sorry, guys, the KX3's internal ATU isn't going to be accessible for
patching through an external amp. It will safely handle 12 W (max KX3
power on most bands), but 20 W is pushing it.
I routinely work the world with 10 W SSB and marginal antennas, hence
the KX3's 10-W nominal power-output
May 2011 13:07:44 -0700 (PDT)
From: AA1QG terjearnt...@hotmail.com
Subject: Re: [Elecraft] Still lacking
To: elecraft@mailman.qth.net
Message-ID: blu0-smtp16759290e251f63b7603f63db...@phx.gbl
Content-Type: text/plain; charset=UTF-8
Ok, you win, I?ll order a KX3 when it arrives!
I have quite a few
Lyle hit it head on. All QRP radios that really need punch lack don't have RF
speech processor or an equalizer. With speech processor, KX3 can sound like
a 4 times stronger radio. With poor mic that Kx3 can equalize, even more
than that. My guestimate 10W of KX3 may approach readability of IC-7000
My guess about the batteries is ease of field replacement, ability to use
standard AA cells instead of rechargeable if needed, and number of discharge
cycles. Li-ion batteries only have about 500 charge/discharge cycles. Anyway,
while LiPo or Li-Ion batteries may be lighter weight, I'm
Must disagree with the limits of 10w on SSB! I have never mastered CW, thus
90% of my operating, which is ALL QRP is on fone. Yea, maybe there are
times a bit more power could help, but the speech processor should take care
of that. More like after all the effort and calling, and waiting, etc,
I'd suggest LiFePO4 batteries, as they can source the current necessary for
the transmitter easily, and are safer in operation than Lithium Polymer.
They can be safely charged on a portable solar panel if you disconnect once
the voltage reaches 14.4v, and that's pretty much what the SLA charge
K7TV wrote:
The battery can provide very high output current for a short time, I
believe enough to power a 100 W transmitter briefly.
Yes, LiFePO4 has a high power density but not as high energy density as
LiPoly or the typical Li-Ion (laptop) batteries. It was chosen for the One
Laptop
Hi Terje,
The KX3 is a completely different radio from the Vertex 1210. It is
much smaller, lighter, and has far less current drain. It can even be
used hand-held. There's simply no room for a 20-W PA and/or a large
battery.
The 1210 is a channelized man pack radio, which definitely has
Wayne, biased??
Naah! never! G
So it's really an apples/oranges comparison, in my heavily-biased
opinion :)
Wayne Burdick
Mon, 30 May 2011 10:47:47 -0700
--
Dave G KK7SS
DN06ig Richland, WA
'59 Morris Minor 1000
'65 Sprite - in process
'76 Midget - shared with my #4 son.
'06 Honda
Ok, you win, I´ll order a KX3 when it arrives!
I have quite a few 5-10w portable radios gathering dust unless I plan to
operate CW. My trusty K2 has the 100W PA, which I usually run at 25-50 watts
using a 14AH battery and an K1 tuner (which tackles 50W well in spite of being
rated lower). The
...@hotmail.com
To: elecraft@mailman.qth.net
Sent: Mon, May 30, 2011 1:07:44 PM
Subject: Re: [Elecraft] Still lacking
Ok, you win, I´ll order a KX3 when it arrives!
I have quite a few 5-10w portable radios gathering dust unless I plan to
operate
CW. My trusty K2 has the 100W PA, which I usually run
K2, K3??? WTF.
Sent from my iPhone
.
Please consider a KX3 Heavy Duty version, with a lithium battery and higher
power output (25W) in a bigger box.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Note that the KX3 will have an effective SSB
clipper/compressor/processor to give an average of at least 6 dB of
talk power without significant impairment of the speech quality,
making 10W seem like 25 or more to the receiving station.
73,
Lyle KK7P
...
Please consider a KX3 Heavy Duty
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