t 10 db less clean than was technically
> practical.
>
> Like it or not, Sherwood's recent QST article applies to Elecraft.
>
> Dave AB7E
>
>
>
> On 11/4/2019 4:20 PM, Wayne Burdick wrote:
>> Hi all,
>>
>> We've chosen to have the K4 continue t
You're right, Joe: you don't want to push predistortion to the max available
power out on a given band. It may be a little less than 100 W to ensure
headroom under all load conditions.
And these days, predistortion is done with DSP. The K4 has a lot more
horsepower in this regard than the
> On Nov 4, 2019, at 4:29 PM, Bob McGraw K4TAX wrote:
>
> The continued insistence on 12V radios should be limited to mobile or
> portable type and configured radios.
Like the K4 :)
Wayne
N6KR
>
> 73
>
> Bob, K4TAX
>
>
> On 11/4/2019 3:31 PM, Graydon (N7RXL) wrote:
>> I'm grateful
oes way up, precluding the use
of standard 20/25-A power supplies and making the radio a lot less portable.
73,
Wayne
N6KR
> On Nov 4, 2019, at 4:45 PM, Joe Subich, W4TV wrote:
>
> On 2019-11-04 6:20 PM, Wayne Burdick wrote:
>> At home, use 13.8 to 14.2 V for lowest IMD. In the
We went to great lengths to create an ideal sigmoidal (raised cosine) rise/fall
characteristic for our CW keying envelope. It is set at approximately 5 ms and
will not be shortened for any reason. Elecraft rigs don't click.
We also ensure that ALC never interferes with the CW keying waveform.
Hi all,
We've chosen to have the K4 continue to be a field-capable radio, inheriting
the characteristics that have always made the K3/K3S (and the K2 before it) the
preferred rig for FD, DXpeditions, and multi-transmitter stations. Thanks to a
lightweight but rigid internal aluminum frame, the
ant Youngman wrote:
>> Well, that???s very good news. Unless I???ve missed it, this is first note
>> I've seen that confirms predistortion corrections in the K4.
>>
>> Grant NQ5T
>>
>>> On Nov 4, 2019, at 10:58 AM, Wayne Burdick wrote:
>>>
>>
There are at least three factors making fires both more intense and more
frequent in recent years:
1. Our power companies (including PG) have not been diligent about clearing
trees away from residential and HV lines. In my own neighborhood I've spotted
many houses with power feeds that are
ns in the K4.
>
> Grant NQ5T
>
>> On Nov 4, 2019, at 10:58 AM, Wayne Burdick wrote:
>>
>> This is why the K4 (and a small number of other transceivers) include
>> "active predistortion" capability in hardware. It adapts the drive power to
>> the
This is why the K4 (and a small number of other transceivers) include "active
predistortion" capability in hardware. It adapts the drive power to the
response curve of the PA stage. The K4 also has an TX sample input to include
an external amplifier in the correction loop. (The KPA1500 has a TX
We Californians are used to unboring. We love it here.
Disasters? Bring it. Great for KX2/3 testing :)
Wayne
N6KR
elecraft.com
> On Nov 2, 2019, at 6:35 PM, Doug Renwick wrote:
>
> The big question is 'how much longer can Elecraft survive in California and
> have to move elsewhere".
>
No impact that I know of.
Wayne
N6KR
> On Nov 2, 2019, at 12:19 PM, Jim H via Elecraft
> wrote:
>
> Hi,
>
> Just wondering how the CA fires are affecting Elecraft?
> Jim h.k7...@aol.com
> __
> Elecraft mailing list
> Home:
> David Stout wrote:
>
> I would like to see a comparison of the P3 and K4 in full screen mode. Is the
> K4 scope faster, higher res?
Hi David,
The K4's LCD has nearly 3x the area of the P3's, and 5x as many pixels. The
resolution (pixels per inch) is about 30% greater. It's faster as well
Yes.
Wayne
N6KR
elecraft.com
> On Oct 28, 2019, at 9:57 AM, w2bvh wrote:
>
> Will K4 have a low level transverter interface? I have vhf+ bands to 6M -
> 2.3G with 3.4 on the way. Can they connect to a K4 ?
>
> 73,
>
> --Lenny W2BVH
>
> K2 #1520
>
>
The K4 uses the same machined knob and rubber band as the K3S.
Wayne
N6KR
elecraft.com
> On Oct 28, 2019, at 9:53 AM, Gary Smith wrote:
>
> I have one of the apparently discontinued
> CNC machined knobs on my K3s, the one with
> the bearing for the finger dimple. I
> really find that
Yes.
Wayne
N6KR
elecraft.com
> On Oct 28, 2019, at 4:48 AM, Paul Kiciak wrote:
>
> Hi All,
>
> Will the K4 support a keyboard and mouse being connected using only one of
> its USB ports
> as would occur with a KVM switch?
>
> Tnx and 73,
> Paul N2PK
>
This was intended to allow the PX3 to be placed on either side of the radio,
etc. Have you tried tucking the excess underneath the KX3?
Wayne
N6KR
> On Oct 24, 2019, at 11:27 AM, w4sc wrote:
>
>
> Has anyone located SHORTER cables for interconnects KX3 – PX3. With the
> lengths supplied
Yes.
Wayne
N6KR
elecraft.com
> On Oct 22, 2019, at 3:39 AM, E.H. Russell wrote:
>
> Does the K4 have binaural pitch mapping?
>
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net On
> Behalf Of Wayne Burdick
> Sent: Mo
At Pacificon I discovered that some long-time KX2 and KX3 users were not aware
of the Morse-audio feedback feature. This was provided for blind operators, but
it's also useful for mobile, as well as too-tired-to-look-at-the-panel mode
(e.g., halfway through Field Day).
To turn on Morse control
The KX3, like the K3/K3S and KX2, has full stereo audio. But it has one special
audio effects mode the others don't: binaural-audio pitch mapping.
When pitch-mapping is in effect, stations lower in frequency are mapped lower
in audio pitch, and higher-frequency signals are mapped higher in
>> On Oct 21, 2019, at 2:13 PM, Dan Atchison via Groups.Io wrote:
>>
>> Well, the weekend is over and I haven't seen any news or video on the dual
>> panadapter. Did I miss something either here or the K3/K3S reflector?
>>
>> Dan -- N3ND
> From: "N6KR via Groups.Io"
>
> I can give you
inal Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of hawley, charles j jr
> Sent: 18 October 2019 18:04
> To: Wayne Burdick
> Cc: Elecraft Reflector; elecraft...@groups.io
> Subject: Re: [Elecraft] Dual panadapter on K4
Hi all,
I'd like to thank the moderators for successfully transitioning the original
KX3 Yahoo group to "Elecraft-KX" on groups.io. This has been a long process.
While we post everything of general interest to the Elecraft reflector on
QTH.net, the new "KX" list will be an excellent place for
gt;
>> On Oct 17, 2019, at 11:06 AM, Wayne Burdick wrote:
>>
>
> Hi all,
>
> Someone recently told me that he'd benefitted throughout his life from
> learning Morse code as a teen. Ham radio helped him cope. He's gone on to
> promote Morse because it can h
One of many K4 features we're putting the finishing touches on is the dual
panadapter display, which will make its debut at Pacificon. Please stop by our
booth this weekend if you get a chance.
73,
Wayne
N6KR
__
Elecraft mailing list
Hi all,
Someone recently told me that he'd benefitted throughout his life from learning
Morse code as a teen. Ham radio helped him cope. He's gone on to promote Morse
because it can help kids with certain cognitive or social issues. Such problems
are exacerbated by social media, these days. We
Standard.
73,
Wayne
N6KR
elecraft.com
> On Oct 15, 2019, at 7:06 PM, Jim Miller wrote:
>
> I see there’s a external reference knockout on the K4 back panel but is it a
> option or is the feature part of the base K4?
>
> 73
>
> Jim ab3cv
>
Yes.
Wayne
N6KR
elecraft.com
> On Oct 13, 2019, at 5:56 AM, Ken Chandler wrote:
>
> Hi guys
> On the new K4, is there a built in facility to protract the waterfall onto a
> large PC screen!
>
> Cheers
>
> Ken.. G0ORH
>
> Sent from my iPad
>
>
>
Hi Rob,
I can't speak for the Japanese (my guess is they're not affected by tariffs at
all). But yes, anyone developing electronic products in the US is definitely
impacted.
A large fraction of the parts we -- and everyone else -- use come from
countries subject to current US tariffs. And in
I was visiting a sister last weekend who lives *really* deep in the woods, 50
miles from anywhere in northern California. She's completely off the grid, thus
unconcerned about PG's power lines. But she also has very spotty cellphone
reception.
During a moment when none of us had any bars, I
Correct, Tim. K4 in-box capabilities will supplement -- not replace -- the use
of external computers.
Given its horsepower, the K4 will have far more versatility than the K3/K3S
when running both internal and external applications.
73,
Wayne
N6KR
> On Oct 7, 2019, at 11:49 AM, Tim N9PUZ
Yes. The K4 will provide multiple transverter band displays, and each cam
display the target RF band. This is similar to what the K3/K3S and KX-Line
radios provide.
73,
Wayne
N6KR
> On Oct 6, 2019, at 9:21 AM, Dimitry Borzenko <4z...@bezeqint.net> wrote:
>
>
> Hello
>
> And additional
We're too busy to move to IO, even if we had enough fuel to get there.
Wayne
> On Sep 30, 2019, at 5:50 PM, Bill wrote:
>
> Leave it like it is. Sure am not impressed by .io.
>
> Stick to building and improving radios.
>
__
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
>> On Sep 29, 2019, at 9:19 AM, Wayne Burdick wrote:
>>
>> Hi Bob,
>>
>> The KX2's RF band-pass filters cover all popular SWL bands. You can use
>> direc
Hi Bob,
The KX2's RF band-pass filters cover all popular SWL bands. You can use direct
frequency entry to jump to specific frequencies, or just tune the VFO. It can
copy AM signals in either AM or SSB modes. Use the FIL switch to adjust the
audio passband.
You may want to set the VFO tuning
> tks
>
> 73
> Frank
> W3LPL
>
>
>
>
>
> > Forwarded Message
> > Subject: Re: [Elecraft] K4 Question
> > Date: Thu, 19 Sep 2019 12:17:54 -0700
> > From: Wayne Burdick
> > To: Elecraft Reflector
> >
> >
Just in case there's any doubt, the K4 has a complete, multiplatform-compatible
sound card interface via its USB-B connector, with two virtual control ports
and stereo digital audio. That's in addition to three USB-A ports, true RS232
via DE9 for legacy station interfaces, full analog audio
Joel,
The K4 will receive on all LF and MF bands down to 100 kHz. In TX mode, it can
put out a few dBm at the XVTR OUT jack for use with external low-band
transverters.
Since the K4 also has provisions for an *internal* transverter, we could in
theory offer one in for these bands. Power
Hi Bryan,
> On Sep 12, 2019, at 12:25 PM, Bryan Brauer wrote:
>
> I received my new AXE1 yesterday, and today deployed the antenna with the
> AX1, connected directly to my KX2 a la HT. I stretched out the
> counterpoise wire and tied the end to the branch of a bush, suspending it
> about 4
> What is the BEST antenna to use with my K???
Rhombic or Sterba curtain. Unless you're doing pedestrian mobile, in which
case...AX1 :)
> September has been fairly quiet
Speaking strictly for all of us, the Elecraft Elves are so busy K4ing that some
aren't posting as often as usual.
> On Sep 10, 2019, at 8:30 AM, Josh Fiden wrote:
>
> Elecraft’s reply is exactly accurate. We are governed by FCC part 97. Amateur
> Service only requires certification for amplifiers. Read it!!
>
> If the other products you’re looking at are also used outside ham radio, that
> would explain
>
>
>
> On 9/3/2019 6:26 PM, Wayne Burdick wrote:
>> Mike -- do you think there's a market for a lighter KX2 color scheme? Maybe
>> a seafoam camo, or marzipan, or chrome with fractal filigree? I'm g
> Mike Morrow wrote:
>
> ... [a] characteristic that is adverse to outdoor operation is its very dark
> color scheme. That makes it an effective heat sink for solar
> radiation...never a good thing unless operating in polar regions. :-)
> Unfortunately Icom is **not alone** with the
> On Aug 31, 2019, at 3:25 PM, Charlie T wrote:
>
> Well, it IS some significant competition, especially since the "PX3" is
> built-in eh?
>
>
> Charlie k3ICH
>
It's an interesting radio for those who need built-in VHF/UHF.
But there are major differences between the KX2/KX3 and '705 for
Great DX, Philippe! Was the whip attached directly to the KX3, or used with a
tripod?
Wayne
N6KR
> On Aug 30, 2019, at 9:29 AM, berub...@focusnature.ch wrote:
>
> Hello,
> Last night I made a qso with my KX3 (15w ssb) and your AX1 MULTI-BAND
> WHIP ANTENNA. I made a contact from the fields
It's a poorly kept secret that the AXE1 40 meter extender for the AX1 whip is
now available...info at:
https://elecraft.com/products/axe1_40-meter-antenna-extender
I've been using a prototype AXE1 all summer, so I thought I'd share my
experience.
The AX1 (with or without the extender) is
Either would work, especially since you need an ATU to match on 40 and 30
meters anyway.
The ATU requirement is clearly spelled out in the product info -- hope no one
missed this :) Short whips can be very narrow banded.
Wayne
N6KR
> On Aug 28, 2019, at 4:36 PM, MaverickNH wrote:
>
> I
Hi Kent,
This is a feature of the tuner in the K3/K3S as well.
Wayne
On Wed, Aug 28, 2019 at 2:58 PM Kent Olsen wrote:
> I ordered mine.
>
> Looking at the instructions, "If you’re using the ATU in a KX2 or KX3,
> note that tapping ATU TUNE a
> second time within 5 seconds may find a better
And I've worked all over the world with 5 or 10 watts doing it :)
Wayne
> On Aug 27, 2019, at 4:07 PM, Wayne Burdick wrote:
>
> I'm generally walking when I use the AX1 (pedestrian mobile, or /PM). It
> isn't possible to elevate the radial under these circumstances; it drags on
I'm generally walking when I use the AX1 (pedestrian mobile, or /PM). It isn't
possible to elevate the radial under these circumstances; it drags on the
ground. The whip is the radiator.
Wayne
N6KR
> On Aug 27, 2019, at 3:05 PM, David Gilbert wrote:
>
>
> I'll try not to beat this into
The high-value, low-temperature-coefficient trimmer capacitors leveraged in the
design are no longer available. Unfortunately we don't have staff available to
redesign the board to do it in another way, and demand is low.
The transverter interface by itself could live on a smaller board.
It’s designed for /PM and stealth ops. In many other situations, of course, a
longer/higher antenna will be more efficient.
73,
Wayne
N6KR
elecraft.com
> On Aug 26, 2019, at 9:26 PM, David Gilbert wrote:
>
>
> I think users of the AX1 would be better off thinking of IT as the
>
Is it possible you have MENU:TX ESSB turned on? Compression is not allowed in
ESSB mode.
Wayne
N6KR
elecraft.com
> On Aug 25, 2019, at 1:56 PM, k1oj wrote:
>
> No, definitely just a tap... Thought maybe I had something set wrong in the
> menus but cannot find anything...
> OJ k1oj
>
>
one of these and I'd be interested in what you find out. Did you
> transmit into it by mistake?I'm pretty sure MFJ doesn't manufacture these
> but I would contact their customer service and see what they say.73,Gary
> K9GS
> Original message ----From: Wayne Burdick
> Date: 8/22/19
My MFJ-223 VNA took a dive (cause unknown). The SWR readings are very high
regardless of load.
Has anyone found a schematic for this thing? The manual also mentions an MCU
reset switch, but I'm guessing that's outdated. No such switch.
tnx
Wayne
N6KR
The K4 will work with all K3 accessories:
- MH4 microphone
- SP3 (but we'll also be offering an SP4)
- KPA500
- KAT500
- KPA1500
- Kpod (connects to a USB port on the K4)
The K4HD uses the same style of crystal filters used in the K3, so it may be
possible to reuse some of
Even a basic K4 can have the two receivers as far apart as you'd like,
including on two different bands.
The K4D (or a K4 with the KRX4 option added later on) gives you a second set of
band-pass filters and the ability to use two different antennas.
Wayne
N6KR
> On Aug 20, 2019, at 5:08
This will work with either a K4 or a K4D. The VFOs can be on the same or
different bands.
If the two receivers were on different bands, and you only had one antenna,
you'd want to make VFO A the higher-frequency band. This is because with a
single antenna, both receivers would be sharing the
,
Wayne
N6KR
> On Aug 19, 2019, at 9:16 AM, Wayne Burdick wrote:
>
> If you're a potential user of our soon-to-be-released AXE1 40 meter extender
> for the AX1 antenna, and you have a bit of time to review some documentation,
> please email me directly. If I don't get back to you
If you're a potential user of our soon-to-be-released AXE1 40 meter extender
for the AX1 antenna, and you have a bit of time to review some documentation,
please email me directly. If I don't get back to you it means we got too many
volunteers :)
tnx
Wayne
N6KR
Hi Jim,
There will definitely be an improvement along these lines to make it easier to
use the 630 meter band.
Wayne
N6KR
elecraft.com
> On Aug 11, 2019, at 9:47 AM, Jim Miller wrote:
>
> Will transmission on 630m still require “TEST” mode like the K3? Or will a
> 0hz IF be
ut, really glad I did not sell the T1 on several occasions of thinking
>> about selling it. I have not used my T1 since I sold my KX1 almost three
>> years ago.
>>
>> phil, K7PEH
>>
>>> On Aug 7, 2019, at 10:23 AM, Wayne Burdick wrote:
>>>
>>
I think a T1 at the base would make a noticeable difference if the coax were
more than a few feet long and the whip's resonance well removed from the target
operating frequency. Short whips can be extremely narrow-banded.
Wayne
> On Aug 7, 2019, at 7:40 AM, Don Wilhelm wrote:
>
> Bret,
>
Bob, K5WA wrote:
> I have a rather specific question. When I operate locally with a K4, I need
> an RS-232 connection to the local computer/accessories but when I'm remote,
> I will only need the K4's ethernet connection. Can the K4 have BOTH enabled
> simultaneously?
Yes. The K4 can be
Wes,
The HD model will include per-receiver hardware noise blanker modules, similar
to a dual-receive K3S.
All models will have enhanced DSP-based blanking, supplemented by fast-pulse
blanking in the FPGA, which is similar to the function of hardware blanker.
And yes, the UI will be
Yes. All ACC connections are the same.
73,
Wayne
N6KR
elecraft.com
> On Jul 31, 2019, at 8:10 AM, W0FK wrote:
>
> Will the K4 output band data through the ACC 15-pin jack the same as the
> K3/K3S?
>
> 73
>
> Lou, W0FK
>
>
>
> -
> St. Louis, MO
>
> "The difference between
At present the AF limiter only applies when AGC is off. We could add a separate
AGC-on limiter setting if needed.
Wayne
N6KR
elecraft.com
> On Jul 25, 2019, at 6:41 PM, Rich wrote:
>
> Does the AF Limit always keep the audio level at the given setting or just
> when the AGC is OFF?
>
Standard.
Wayne
elecraft.com
> On Jul 24, 2019, at 1:04 PM, Grant Youngman wrote:
>
> Does anyone know (or perhaps Elecraft could chime in) whether the EXREF
> equivalent is a “standard feature” of the K4 or an option? And if it is an
> option, whether it will be available at the
Yes.
Wayne
elecraft.com
> On Jul 24, 2019, at 7:48 AM, Drew AF2Z wrote:
>
> Will we be able to adjust the pitch of a CW signal in "real time"? (Unlike
> the K3.)
>
> 73,
> Drew
> AF2Z
>
>
>> On 07/23/19 12:21, Wayne Burdick wrote:
We're using a newer part that works correctly with Windows computers. Also, the
K4 provides a superset of K3S I/O functionality generally.
73,
Wayne
N6KR
> On Jul 23, 2019, at 8:09 AM, Nr4c wrote:
>
> Probably not. There is 4 to 5 years between radios and I expect some
> advancement in this
Yes. So is the EQ on our other transceivers.
EQ on the K4 will be more easily adjustable, with a much better user interface,
thanks to the large LCD.
73,
Wayne
N6KR
elecraft.com
> On Jul 23, 2019, at 8:35 AM, Richard Donner wrote:
>
> Does anyone know if the equalizer on the K4 is
3 with, 1 without.
Wayne
elecraft.com
> On Jul 7, 2019, at 7:16 AM, Dick Dickinson wrote:
>
> I'm not always the best at reading between the lines. With and without the
> internal antenna tuner, how many ports are available for Transmit?
>
>
>
>
>
> As ever,
>
> Dick - KA5KKT
>
Nr4c wrote:
>> How many ports does a K4D have without the ATU.
1 main antenna jack and 2 receive antenna inputs.
>>
>> I know the K4 only has one I think the ATU ads 2 more for total of three.
Yes. Also, any one of the ATU antenna jacks can be designated as a third
receive antenna input
; Sampling mode.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
>> On Jul 4, 2019, at 11:18 AM,
>> wrote:
>>
>> Wayne,
>>
>> May I ask how would I use direct sampling mode in the K3?
>>
>> -Original Message-
>> From
The other day someone asked me whether we might add remote antenna rotator
control to the K4 front panel. This is a good time to point out a
characteristic that's baked into the K4's user interface: extensibility.
For example, we included a dedicated switch function called REM ANT. (This is
> On Jul 3, 2019, at 7:46 AM, RALPH TURK wrote:
>
> Will the k4 with Mars software transmit from 1.8 through 30 Mhz with no band
> stop
> like the K3 has at the IF freq?
The K3 will transmit and receive in the 8 MHz range as long as you're using
direct sampling mode. The HDR module (in the
Not.
Wayne
> On Jun 29, 2019, at 1:04 PM, JP Douglas wrote:
>
> Hi all!
>
> While having a QSO yesterday from my mobile to a QRP station on 20 meters,
> the gentleman I was chatting with mentioned that the KX3 now does up to 20
> watts of power. Never heard this before and wondering if
> On Jun 27, 2019, at 2:10 PM, Doug Turnbull wrote:
>
> The K4 will display time and date; I have seen this on one image. Is there
> any chance that in the new design the 24 hour clock and date will hold their
> accuracy over prolonged periods?
Yes. In addition they'll automatically
The K4 should work at 40-41 MHz without modification, though I wouldn't
guarantee specs without performance testing.
73,
Wayne
N6KR
> On Jun 27, 2019, at 2:52 PM, Ed K1EP wrote:
>
> Maybe for RX. For TX, you have to consider spurs, harmonics, filters and
> other technicalities. So, it is
>From George, KJ6VU, at the Bay-Net FD operation:
* * *
The K4 was exactly what I expected to see. The combination of my K3's great
performance with super smooth CW keying and the P3 pan adapter all rolled into
one. It's great to see everything in a single package with a large display. I
Meanwhile, some CW stations were running contacts at a rate of several per
minute. With no automation :)
Wayne
N6KR
> On Jun 25, 2019, at 8:25 AM, Carl Jón Denbow wrote:
>
> Peter,
>
> I am curious how you got FT8 to do the proper FD exchange? I read a post
> where some hams were
George (KJ6VU), John (KJ6K) and I operated a basic K4 for several hours as the
20 meter CW station at the Bay-Net Field Day site east of San Jose. This was
the K4's first outdoor shake-down. The stakes were high, since the K4 has to
pick up where the K3S/P3 leave off, fulfilling a dual role as
Phil,
I'll send you a dimensioned drawing.
73,
Wayne
N6KR
> On Jun 23, 2019, at 6:42 PM, Phil Hystad via Elecraft
> wrote:
>
> I just ordered the AX-1 antenna Tripod Adapter but I am wondering if it fits
> the camera tripod that we have. I need about two inches of clearance (i.e.
>
4-40
elecraft.com
> On Jun 23, 2019, at 7:09 AM, MaverickNH wrote:
>
> My AX1 came with a nut embedded in the plate opposite of the BCN connectors.
> It seems the right place to add a knurled-head screw to affix the
> counterpoise(s) during use. I went to the hardware store and the clerk
L Mobile Mail
> Get the new AOL app: mail.mobile.aol.com
>
> On Friday, June 21, 2019, Wayne Burdick wrote:
>
> We'll have one K4 at the Bay-Net Field Day site near San Jose this year. On
> Saturday we'll be using the club call, K6SRA. On Sunday I'll be operating
> from ano
We'll have one K4 at the Bay-Net Field Day site near San Jose this year. On
Saturday we'll be using the club call, K6SRA. On Sunday I'll be operating from
another location to be determined using my own call.
This is largely an experimental first FD effort for the K4, running early
software,
It may not be explicitly stated in the FAQ, but there's no reason not to
provide both orientations. Side-by-side provides more waterfall height
(optimizing for time), while top-bottom provides more span (optimizing for
frequency).
The reason we're emphasizing side-by-side initially is that it
The KFL3A is an 8-pole filter.
The KFL3C is a 6-pole filter. In a 400 Hz bandwidth, performance will be
virtually indistinguishable from the 8-pole.
73,
Wayne
N6KR
> On Jun 18, 2019, at 8:21 AM, j...@kk9a.com wrote:
>
> The new Elecraft site is a little vague regarding roofing filters so
ted question re a single ADC K4 -Will it be possible to select
> different RX BW's
> (and modes) for the main and sub-RX's?
>
> Thaks and 73.,
> Paul N2PK
>
>> On 6/8/2019 1:03 PM, Wayne Burdick wrote:
>> Paul (N2PK) wrote:
>>
>>> Will the single ADC K4, w
Paul (N2PK) wrote:
> Will the single ADC K4, without the KAT4, support an RX antenna?
Yes. Even without a KAT4, you'd have two RX antenna inputs to choose from (RX
ANT IN1 and RX ANT IN2). The selection is stored per-band.
73,
Wayne
N6KR
While I appreciate the sentiments, I don't think we'd want to authorize a clone
of the K1. In addition to the copyrighted PCBs, there's a lot of IP in the
firmware needed to run the radio, band modules, ATU, etc.
Wayne
N6KR
>
>
>> On Jun 7, 2019, at 11:29 AM, Glen Torr wrote:
>>
>> Petr,
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick
> Sent: 06 June 2019 21:54
> To: n...@windstream.net
> Cc: Elecraft Reflector
> Subject: Re: [Elecraft] K4 Questions
>
>
>> On Jun 6, 2019, at 2:28 PM
Yes.
Wayne
elecraft.com
> On Jun 6, 2019, at 3:20 PM, William Osborne wrote:
>
> Sorry, if this is already answered, but I cannot find it. With the K4 is
> there an I/Q output to PC that will support CW Skimmer in wide band mode
> (not audio)? I am a 6600M user who is getting
> On Jun 6, 2019, at 2:28 PM, wrote:
>
> 1.I understand that the K4HD will have a selectable feature that would
> allow it to use either the direct sampling or the superhet front end. If I
> had a K4HD, why would I ever want to switch from the better superhet front
> end to SDR -
I miss the good ol' days, e.g. high school, when my quick 'n' dirty transceiver
projects were built by twisting component leads together. No PCB, no chassis,
nothing but raw parts. Hook up a 9 V battery and a shamelessly untuned wire
antenna. Work DX. Repeat.
Wayne
N6KR
> On Jun 6, 2019, at
To quote the K4 product brochure:
Modular, upgradeable architecture
The K4 is our radio for the present and foreseeable future, extensible in both
software and hardware.
Wayne
N6KR
> On Jun 6, 2019, at 10:53 AM, Grant Youngman wrote:
>
> Certainly agree. And you never know — if the K4
Correct on both counts.
Trust me, as the designer of both the K1 and KX1 I have a soft spot for them
and would love to bring them back. But several of the critical parts became
impossible to source, and a substantial redesign would be required to work
around them.
The good news: the KX2 is
The superhet module buys a lot of BDR improvement. But also -- a subtlety I've
failed to mention so far -- the superhet module is intended to somewhat improve
2 kHz IMDDR3 *and* make this figure more repeatable.
Q: Say what?
A: As Rob Sherwood noted many times before finally immortalizing
The K4 has internal and external TX waveform monitoring built in. It should
directly support any amp that has a TX sample output, such as the KPA1500.
Wayne
N6KR
elecraft.com
> On Jun 3, 2019, at 5:09 PM, Marty Koszewski wrote:
>
> Hi Brian,
> I understand that the panadapter is
Hi Drew,
You'll be able to connect a keyboard (wired or wireless) directly to any of the
K4's USB-A jacks for direct control, or in conjunction with the rig's built-in
data modes.
73,
Wayne
N6KR
> On Jun 2, 2019, at 10:25 AM, Drew AF2Z wrote:
>
> I hope we may be able to operate the K4 by
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