Don makes an excellent point.
I started with a minimal K3 and built it out "under the XYL's
radar", enjoying it every step of the upgrade path. The second
receiver was the killer upgrade for trying to work DX with big
pileups. (I already had the P3.)
The other big advantage of the modular ap
w0mu wrote
> What happens when you turn the AGC off and ride the rf gain? Do these
> setting still have some effect or should they be set up differently?I
> assume when you use 12/8/soft most people are using AGC-F?
Ken,
When you experienced the mush, did you have the AGC ON, but the RF Gain set
I was itching to build another kit so I picked up a K2 kit; It's been enjoyable
to see it take shape over the past few weeks.
I even wound up ordering a bunch of the options so I can stretch out the
building process a bit more.
I had forgotten how nice of a Kit the K2 was (I built my last one
If I recall the 100w PA switches on when you go over 10w
From: "j...@kk9a.com"
To: Jim Miller
Cc: Elecraft Reflector ; jtmille...@gmail.com
Sent: Thursday, February 23, 2017 5:31 PM
Subject: Re: [Elecraft] Product Idea - 25 Watt PA for the K3
Maybe so. I think it would be nice if
PX3 firmware revision 1.48 is now available for download as a general release
using the PX3 Utility. This version is essentially the previous beta 1.45
along with a few minor fixes and one additional feature. There is a new
version of the PX3 Programmer's Reference (rev A6) as well a new errata
(
Maybe so. I think it would be nice if you could control when the 100w PA
switches on or perhaps just have it one all of the time.
John KK9A
On 2017-02-23 09:50, Jim Miller wrote:
> I'll take a guess.
>
> All transmitters have multiple stages to get to 100-200 watts. Tapping off
> the 10w st
Running DC input voltage close to the specified limit of 15.0 V will improve
IMD. Perhaps the results you posted were with lower input voltage.
73, Bill W4ZV
--
View this message in context:
http://elecraft.365791.n2.nabble.com/High-Tx-IMD-with-new-K3s-10-tp7627317p7627318.html
Sent from th
The only measurements I have seen are from N0CU:
1W-36dB
4W-31dB
4,5W-33dB
6W-34dB
8W-25dB
10W-21dB
Several anwers said this IS NOT normal.
Are there measures which ARE normal?
I am looking for a midway 4...6W values to feed
kW amplifier withou
The hardware AGC engages at about -45 (S9 + 20 dB). That is most
certainly the final flattening you are seeing in the transfer
characteristic.
Otherwise the slope for each slp setting will generate roughly parallel
transfer curves from the threshold point (witness the parallel curves
for all of
I like that the K3 is modular so I buy the options I want (though it seems like
I want all of them eventually).
I came pretty close to buying a second K3 and keeping it at 10 watts for use
with Transverters (may still happen someday).
I'd like to see Elecraft update their Transverters to matc
I originally purchased a K3/10 which limits output at 12w (how
linear?). Then a year ago I bought the KXPA100 which drives to 100w
with about 5w which is 42% of max output and should be much more
linear out of the K3. I haven't determined the drive required for
25w output from the KXPA100 but
http://www.ke7x.com/home/miscellaneous-k3-information/agc-4-51
The transfer characteristic is pretty linear from an input signal of nearly
-120 dBm to about -45 dBm with AGC off. Signals above that are being clipped
by some other non-linear process, probably the hardware AGC.I don't
remem
That's surprising.
The most I need its 20 watts to get 500 watts out
From: Jim Miller
To: donw...@embarqmail.com
Cc: Elecraft Reflector ; "j...@kk9a.com"
Sent: Thursday, February 23, 2017 9:59 AM
Subject: Re: [Elecraft] Product Idea - 25 Watt PA for the K3
And 25w isn't suffi
On Feb 23, 2017, at 5:11 AM, Carter Craigie wrote:
> New owner here of an Elecraft KX2.
> I would enjoy seeing any pictures of the LowePro CS60 (the larger of the two
> suggested bags) all packed and ready to go, including the rig, paddles,
> antenna connection and two 25'-long ant and gnd wir
That is correct. While typically in the 25-35 W range, It can require up to the
low 40 W range in some cases.
Eric
/elecraft.com/
On 2/23/2017 6:59 AM, Jim Miller wrote:
And 25w isn't sufficient to drive the KPA to full power on all bands.
jim ab3cv
On Thu, Feb 23, 2017 at 9:53 AM, Don Wilhe
I think this issue of distortion when driving amps at near their limit was
highlighted early on by a change Elecraft made on the K3. Initially the K3
could be dialed up to 110 watts. However, IMD got pretty rough at that
level. So, Elecraft dropped the maximum down to just 100 watts, and the
Just by way of an update to the screen printing disappearing, the UK dealer
is going to replace the front panel of the KX2 for me.
73 Stephen, G4SJP
On 20 February 2017 at 05:30, Augie "Gus" Hansen
wrote:
>
> On 2/19/2017 1:42 PM, Stephen Prior wrote:
>
>> Before I take this up with the UK agen
What happens when you turn the AGC off and ride the rf gain? Do these
setting still have some effect or should they be set up differently?
I assume when you use 12/8/soft most people are using AGC-F?
On 2/22/2017 1:54 PM, Irma Linas wrote:
Hi everybody,
Following the advice in one of the po
Hi Dan,
You can go into the AGC SLP menu and then do a sequence of UP; and DN; commands
to arrive at your final value. The strategy for these types of macros is to
drive the parameter to one end, e.g. 15 UP; commands set SLP=15 and then 5 DN;
changes it back to 10, if that's the value you want
Perhaps what I should have said is that the slope of the gain curve for a given
value of SLP changes as THR gets higher. See the curve at
http://www.ke7x.com/home/miscellaneous-k3-information/agc-4-51
As you can see, when THR is 20, the curve for SLP=15, SLP=7, and SLP=0 are
virtually identica
And 25w isn't sufficient to drive the KPA to full power on all bands.
jim ab3cv
On Thu, Feb 23, 2017 at 9:53 AM, Don Wilhelm wrote:
> John,
>
> Historically, Elecraft has always offered options - on the premise that
> "if you don't need/want it, you don't have to buy it".
> As a result, the KPA
Ted,
There already is a difference. K3 Utility figures out which you have
and loads the matching firmware when there is a difference. It should
be seamless whether you have a K3 or K3S.
73,
Don W3FPR
On 2/23/2017 9:51 AM, Ted Edwards W3TB wrote:
As I read of updates -- and one specificall
John,
Historically, Elecraft has always offered options - on the premise that
"if you don't need/want it, you don't have to buy it".
As a result, the KPA3, KAT3, Bandpass filters for general coverage, 2nd
receiver, DVR, extra roofing filters are optional.
For instance, those who want a transc
As I read of updates -- and one specifically saying K3S -- is there going
to be a difference coming between what applies to K3S and the K3 itself?
Thanks!
--
73 de Ted Edwards, W3TB and GØPWW
and thinking about operating CW:
"Do today what others won't,
so you can do tomorrow what others can't.
I'll take a guess.
All transmitters have multiple stages to get to 100-200 watts. Tapping off
the 10w stage was easy to do and makes a nice QRP rig. I used my K3 for
several years as QRP only before getting the 100w amp and eventually the
KPA/KAT combo.
jim ab3cv
On Thu, Feb 23, 2017 at 9:32 AM,
I set the TX GATE to ON 10 and the complaints have been eliminated...although
one fellow is still straining to hear something. I have always had the TX
GATE set to OFF 0 and have over the years gotten complaints of almost
imperceptible "ghosts on the audio", and then this "tiny rattle". Maybe I
alw
I am a little late to the Elecraft party, why does this transceiver use a
separate 100 watt module instead of just having a 100 to 200 watt
transmitter like other manufactures?
John KK9A
Harry Yingst
Seeing how the KPA- 500 tends to need less than 25 watts to drive it to
full output (500 watts)
New owner here of an Elecraft KX2.
I would enjoy seeing any pictures of the LowePro CS60 (the larger of the two
suggested bags) all packed and ready to go, including the rig, paddles, antenna
connection and two 25'-long ant and gnd wires, extra battery, and earphones or
earbuds.
And what do the
Have you done the RF exposure calcs? I have the same issues. It turns out
that on all HF bands, it is difficult to exceed the limits at 100 watts. Just
5 to 10 ft from the antenna provides enough distance.
73 de Brian K3KO
Sent from my iPad
> On Feb 22, 2017, at 10:06 PM, Aaron Lee wrote:
+1 on this.
~25w, (optional) built in battery pack and tuner. Integration with the KX2
,KX3 and maybe the K2 and K3(S) for automatic band changing and so on. That
would be awesome.
73
LA4TTA
Erlend
2017-02-23 10:40 GMT+01:00 Myron Schaffer :
> In keeping with my purchasing habits (I own the K1/2
In keeping with my purchasing habits (I own the K1/2 and KX line) I'd rather
see a compact, efficient, external, 1 W in /25W out (14dB) packer type amp
offered to compliment my very versatile station. Just saying.
72
Myron WVØH
Printed on Recycled Data
> On Feb 23, 2017, at 1:00 AM, Rick WA6NHC
Excellent replies so far.
What we start with is a ten watt radio. We add the KPA3, which provides
a jump in output by 10 db. We can add the KPA500 which provides another
~12 db; because you're now loafing the KPA3, keeping linearity
'manageable'. (Yes, you can push the KPA500 to 600 watts o
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