I still miss that 500 kHz chatter
73,
Arie PA3A
Sparks on several ships using the good old ARRL deluxe keyer
Non-revenue chatter on the marine CW frequencies in the 50's ran
anywhere from 10 to 35-40 WPM. The Company urged revenue traffic in
the 18-20 WPM range.
Is there any way to make the manual notch filter really narrow to keep morons
running legal limit on FT8 from wiping out my waterfall and making my ears
bleed?
Well, the K3's nothfilter may not be the best for FT8. Besides that,
when the notch is engaged, the AGC is still responding to
K3 (with the S-mods) and K3S are still strong going and competitive
superhets if you have all the necessary filters and use the items in the
menu (like AGC-settings etc). It's fast, no delays, easy to use, the
panadapterdisplay is already on my computerscreen (don't need a P3 for
that) and
Hi Bob,
I've been playing with the RSP1A at the IF of my K3 and HDSDR and SDR
Uno as panadapter software. I also had Omnirig running for this. Never
bumped into the kind of problem you describe. I can reproduce your
problem though, by setting up omnirig with wrong RTS/DTR setting. One
thing
and PA3A is a happy man.
(By the way, this is not the first time in the life of #1255 that its
TMP-cables needed a little push.)
Cheers and 73 to all,
Arie Kleingeld PA3A
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Sid,
Using the normal 13.8V powersupply for that, which is also used for my K3.
The 12V connection on the backside of the K3 I use for a panadapter.
73
Arie PA3A
Op 24-8-2017 om 5:44 schreef Sid Frissell:
Just got my new KAT/KPA500 on the August Special. I have both units all wired,
Who needs three boxes if it has a switching power supply and the amp
itself has >90% efficiency?
That would be a nice amp in the best Elecraft 'portable' tradition.
This is the only 1.5kW linear I would consider buying as a replacement
for my good old Commander.
73,
Arie PA3A
Op 29-3-2017
Besides the usual things nearly every other hi-end linear has:
- tuner built-in as an option
- really light weight
- at least 90% efficiency
- one, max 2 antenna ports
(these fit into the portable rig philosophy of Elecraft)
73
Arie PA3A
Thanks Ian for bringing all the info back to the list.
My settings: slope 9, thr 12, decay soft, pls nor, hld 0.20 , agc-s 20
to 30 (depends...)
73,
Arie PA3A
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Ed, That kind of pain was part of the K2 fun for me (LOL)
73
Arie PA3A
Op 6-12-2016 om 10:31 schreef Eddy Avila:
Thanks everyone for your sage advice.changing CW pitch sounds like a
pain to me!!
ed ~ k6sdw
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I had the KPA500 PIN diode problem in 2015, and it started on one band
only. And it did not happen all the time. After a while it became worse
and more bands were affected.
So based on my experience with my KPA500 #1497, I suggested the PIN
diode problem as a possiblity.
I wonder what the
This might be a problem with the pin diode T/R switching in the KPA500.
73,
Arie
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Fred,
The cause might be the initialisation of the com port connected to the
K3 (PTT and KEY on pins of RTS and DTR, = pins 4 and 7).
73
Arie PA3A
Op 31-10-2016 om 5:15 schreef Fred Jensen:
This may not be new, I often pay no attention to the radio if I power
it up, but recently I've
Louis,
In my shack I have the KPA-KAT500 combo stacked permanently: KPA500 on
top of the KAT500. It's like since I have them (2013).
During portable use (fieldday etc) the K3 is on top of that. Compact and
easy.
See this short youtube video of the PI4D fieldday how that looks:
Bill,
Maybe it's a hardware problem:
The connector from frontpanel to main rf board for example?
When the temp is low, maybe there are some bad contacts. Take off the
front panel and clean all pins of the connections. Do this thouroughly,
polish all four sides of each connector-pin.
73
Bill,
You could try a nice looking, computer headset with electret mic. You'll
be amazed by the results. The K3 works well with just about any mic.
Well done Elecraft.
I never bought any handmic. But I own several headsets, a $4,50 plastic
one (has a good mic), a Yamaha CM500 ($45, many K3
I think that crowdfunding a KPA1500 would help to get Elecraft going
again on a big amp.
Crowdfunding would also give a good indication on how many KPA1500's you
could sell in the market as it is today.
73
Arie PA3A
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NAP3 + Softrock IF + built-in stereo line in (96kHz samplerate) is best
bang for the buck if you want to see the band, point & click and solid
integration with K3 and other software.
The combo here is:
- software: N1MM logger + NAP3 + LP-bridge
- hardware: Softrock-IF, built-in soundcard on 5
Hi David,
Elecraft probably did not communicate it to you. I had a TR-switch
problem in my KPA500. After a good search and some correspondence with
Elecraft I found the cause of the problem. And Presto, there was
standard mod for it and they did not tell me that beforehand. I had to
Sorry.
Arie PA3A
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Please help support
Ben,
Full tracking (freq, mode, filter etc) is enabled with diversity on.
Frequency tracking alone and leave the rest open, that is in the menu:
config: VFO LINK
I use them both under different circumstances, but that is not what you
are asking.
73
Arie PA3A
Op 6-5-2016 om 15:50
Ed,
I did the Synth upgrade (= improvement) and the 2nd preamp for the
higher bands (= a very necessary feature)
That's it for me.
73
Arie PA3A
Op 2-5-2016 om 20:49 schreef Ed via Elecraft:
I have had my K3 for a few years and have always kept it up to date. It seems
cheaper than
No more issues
K3 #1255
73
Arie PA3A
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K-pod:
Interesting feature. Could be the first part to connect to the K4.
73
Arie PA3A
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Sverre,
just curious, why would you like to route the 2nd RX through the KAT3?
What is it that you trying to accomplish?
Arie PA3A
Op 1-4-2016 om 19:56 schreef Sverre Holm (LA3ZA):
When I built my K3 some years ago I routed the second receiver's AUX antenna
input to the rear panel BNC
Wow, a touch screen. Wow? Come on, it's just an interface between man
and machine.
Just some ( and I mean /some/) thoughts:
A touch screen can be a cheap set of programmable buttons.
Could be nice for a user and maybe a cost reduction for the
manufacturer. Nothing special and I'm not
Hello Bill,
During normal operation there a no clicks when changing a filter.
My K3 is an older one, but ever since I have the NEW SYNTH's on board,
there's a lot of clicking going on when I change the width of the
filters in Diversity mode.
Nothing to worry about. I think the relays are on
I that Elecraft needs a new very good product that will sell at
least 10.000 pieces in the next 3 or 4 years.
If not a PA, what product would that be? That would be a logical strategy.
(My two cents worth or maybe even less.)
73
Arie PA3A
Hajo,
Whatever you do, the skimmer screen shows on the screen what it is
'listening to'. So set the offset in the settings of skimmer so that
skimmer shows you what you hear in the KX3.
(I use the K3 with a real softrock and I can adjust the offset right on
the spot.)
Arie PA3A
Op
Hi Dick,
Just do it. If you need a certain bandwidth for a certain mode, use the
narrowest roofer you have in there; just like in any other conventional
transceiver.
So if you want 350Hz as bandwidth, use that 250 filter (which is
actually 370). That's common sense.
Don't let the 250Hz tag on
No luck with the NB, trying SSB with the FM-roofer.
The NB already did a good job on the eletric fence 'ticks' using a
normal filter.
As for the other noise from the neighbourhood: I have not yet been able
to produce a good result using this method.
73,
Arie PA3A
Tim,
About the line-in / mic in a simple laptop:
Before going through the process of buying a super usb external
soundcard, check the windows configuration - sound of your laptop and
look at recording devices.
You'll probably find the mic. Then check the properties of that
connection. In the
Irwin,
The PA temp calibration is, as Don already stated, in the manual.
Just wondering, do your fans actually run?
The fans can be tested in de menu: KPA3.
If set to 'PA nor' then the fans are temp controlled.
If you turn the main dial, PA Fn1 - Fn4 will come on the display, You
should
K3 #1255 with all mods: response as flat as a pancake up till 4 kHz.
(line-out into pc-soundcard)
73
Arie PA3A
Op 22-12-2015 om 14:56 schreef Joe Subich, W4TV:
On 12/22/2015 8:48 AM, on4iq wrote:
Listening via 6Khz filter
there is 15k 6k 2.8k installed
I just tried to listen in FM, useless,
Nothing that improves the formidable K3 performance.
But still:
I could run the audio over USB instead of analog,
I could sell the usb-serial converter for CAT
For me the over the top price is a showstopper.
I'll keep my very cheap usb serial converter and audio cables. This old
concept is a
In your case there's one RX to receive one frequency at the time.
To monitor two freqs /at the same time/, you will need the Sub RX.
Arie PA3A
Op 30-11-2015 om 13:16 schreef simon m0vky via Elecraft:
hi
recently purchased and built a k3S, without the SUB RX.
i was under the impression that
Frank,
This looks like the problem I had with my KPA500 that turned out to be a
fault in the T/R switch. My troubles also started on 7MHz.
There's a modkit for that: E850607. I installed it myself.
This has been in the reflector before. Look e.g. for the thread on
KPA500 troubles of last
Failing pin diode switch ? (not the PIN diode itself, but the
semiconductor switching it)
73
Arie PA3A
Op 19-10-2015 om 14:20 schreef W4GRJ:
All of a sudden my KPA500 is misbehaving. It sounds like it is arcing inside
and smells the
classic something is burning smell. SWR LED's are
What do I think?
I think (repeat: THINK) that many K3 owners want the best performing
transceiver, for whatever reason or just want to have the transceiver
that's at the top of the chart of 'he whose name must not be mentioned'.
I upgraded my K3 -1255 with the SYN3A for future LF-reception and
Touch screen on a transceiver:
- a vertical screen is not so easy to tap
- a touchscreen probably drives down cost
Arie PA3A
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The versatility/flexibility of the K3 is unmatched.
The nice thing about the ic7300 is that it uses direct RF sampling,
which is probably the way to go in the future. I'm not sure if the
touchscreen will add real value for operating. I'll have to try.
As I wrote before, I expect that the K4
Ingo,
I totally agree on your statement. One reflector with productname in
subject line.
(Filtering options in my e-mail program (thunderbird) do the rest.)
With multiple reflectors, think about all that moderation... ;-)
73
Arie PA3A
Ingo Meyer, DK3RED schreef op 23-8-2015 om 17:30:
Hello
Thanks for your support Guy.
I have addressed this subject several times in the past (with no
success). I often use diversity in contests (ever since I have my K3,
which carries #1255).
Now that the K3 runs the diversity form one VFO and the problem of the
filter offsets seems to be solved,
which is the best to hear.
When you have the audio set to A-A or b-b, you are hearing the audio
from only one receiver, and by definition, that is not diversity
reception.
73,
Don W3FPR
On 8/3/2015 10:30 AM, Arie Kleingeld PA3A wrote:
Don,
to set things up, I use a macro programmed
Bob,
This is how I often use the diversity of my K3 (it has the sub RX, and
similar filters in Man and Sub RX)
- on 20m: one 3-el beam to NW on Main and a 5-el mono to NE on Sub
- on 160m: vertical on Main and receive 4-square on Sub
- on 40m: 3 el beam on Main, vertical on Sub
(It depends a
) with the RX ANT switch on.
73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/
On 2 Aug 2015 17:34, Arie Kleingeld PA3A wrote:
Hi all,
I might be one of few people who use the Linked VFO's in diversity, not
that I want to, but because I have to.
When listening to diversity I am stuck
be in SPLIT to do what you are doing. Is that true?
73,
Don W3FPR
On 8/2/2015 10:34 AM, Arie Kleingeld PA3A wrote:
Hi all,
I might be one of few people who use the Linked VFO's in diversity,
not that I want to, but because I have to.
When listening to diversity I am stuck with the L-MIX-R
Dale,
That would be a nice work around, introducing another device :-) I am
limiting the number of devices as much as possible.
Having it under the F-keys is just so nice. I wonder why no one asked
for this before. At the club the K3 is really showing off when people
use it this way.
73
Hi all,
I might be one of few people who use the Linked VFO's in diversity, not
that I want to, but because I have to.
When listening to diversity I am stuck with the L-MIX-R setting to A-b.
Some times I want to switch from A-b to A-A or b-b and back again.
It is used when I need to
Cascading:
The only cascading filtering is first the xtal filter and then the DSP
filter. (So there's only one xtal filter)
400Hz-500Hz:
Yes listening to a wider DSP filter than Xtal filter is pointless.
Although (if configured correctly) the K3 will switch to a wider Xtal
filter (if there
Johnny,
I have done that mod.
Reason was that my KPA500 had high SWR at the input and barely any gain.
Tracked the problem down to the TR circuit. One of the switching Fet's
(that switch the TR PIN-diodes) had died.
It proved to be an error that happened before, because for a lousy 12
bucks
I installed two new SYN3A's yesterday in K3 #1255
A very positive surprise: The diversity mode has improved a lot. The
'woosh' during tuning has competely gone! Super.
A negative surprise: Tuning noise on 40m (S3 !) plus birdies.
I will install the tuning noise reduction mod (of 2009) now and
Yep,
That's how to do it. Followed the same strategy here and worked him 21 up.
73,
Arie PA3A
Don Butler schreef op 10-3-2015 om 19:31:
I apologize ...but sent the wrong link in previous email. This is the link
to show monitoring the K1N pileup with KRX3 and P3:
https://vimeo.com/119076467
Jim,
On 160m
For TX: 5/8 wave inverted L
For diversity RX: RX-4-square
73
Arie PA3A
Jim Miller schreef op 18-2-2015 om 1:17:
What are folks using for their two antennas to provide improved reception
on 160m? I have a recently installed 2 element vertical RX array and
thought the next step
Vic,
When the K3 is in diversity, it is in diversity, meaning that Main RX is
on left ear and Sub Rx on right ear. This cannot be changed.
Often, it is convenient to switch to only one antenna and one audio
instead of two. So if a signal is really good on the Sub RX, I switch to
B-B, meaning
Wayne,
Please do not take out LINK. I'm using it a lot in contests and in
DXpedition work
Just to give you and others the idea:
With both main and sub RX's on the same freq, mode and BW I link them
with LINK.
But here comes the fun part. When working with the N1MM logger I use
F9-F12 to
Tony
LINK ties both VFO's to the mail freq dial en keeps them insync when you
turn the dial knob.
So both receivers keep working on the same freq.
What I often use i diversity listening so with two receivers and two
antennas on the samen freq.
Diversity puts the main RX audio on the left ear
Wayne,
That sounds interesting. Before investing in two modules I'd like to
know how much the dynamic range will change. Could you share some
relevant measurements?
73
Arie PA3A
Wayne Burdick schreef op 13-2-2015 om 7:07:
* ULTRA-LOW PHASE NOISE
The KSYN3A significantly improves the
Bruce,
There are a few top-of-mind options:
- the connected antennas to the two RX's (AUX and MAIN)
- the use of the RX ant port
- RF and AF settings of both RX's
73
Arie PA3A
I checked and double checked the settings for both RX to ensure I didn't
have something turned on the Main that was
Hi all,
Starting this week, my K3 #1255 (year 2008) started showing ERR messages
when I swithed it on. First ERR message was ERR BP1.
After pressing any button of the K3 the following messages appeared:
ERR LPF, IO3, IF1, XV3, AT3, PA1 and BP3.
After cycling through these messages, they are
Did you send didit dahdah or diditdahdah?
The second should work.
73
Arie PA3A
Stephen Reichlyn schreef op 22-1-2015 om 17:08:
I'd love to know the secret of defeating the long tail after a rtty
transmission. Ive been told to send the prosign IM but it has
never worked. Any hints?
73,
No need for another list.
Sort on names or subject works just fine.
73
Arie PA3A
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John,
My standard setup here is:
Software:
- CWskimmer
- NAP3
- N1MM logger
- a simple piece of software called ' clusterjoin'
- LP Bridge
- systems: Win XP (until last month) and Win Vista (present time)
Hardware:
- K3
- Softrock -IF
- 6 yr old pc with 192kHz soundcard
Way of operation:
-
Dick,
Now that you are 'on the air'...
Pressing the tune button on the KAT500 means that I want to tune.
Wouldn't it be nice if the K3 (automatically) gives a tune signal when I
do that?
Is that somewhere on the list? Or will this never become reality?
73
Arie
Dick Dievendorff schreef
Vic,
Cannot really tell what's happening, but I have a suggestion for your BC
bandfilter.
Connect the filter to the RX ANT in and out connectors, and switch on
the RX ANT.
Now you can transmit the normal way and use the filter for receive only.
73
Arie PA3A
Vic Rosenthal 4X6GP/K2VCO
Alan,
Lots of anwers have been given.
One more: Usually those electrets have 3,5 mm connectors. Use the back
panel as an entrance for the mic. No need for a front panel microphone plug.
Actually, I never used one with my K3. I have had several mics
connected to it, all with a 3,5mm connector.
Hello Ted,
When I need to be on zero beat within one Hz, I always switch on the
spot on the K3 and set the received signal to the same volume.
Once I hear the combination of both increase and decrease slowly, I know
that I am within a Hz. It's also the way I calibrate the K3 against a
Mike,
Only when calibrating the K3 freq I tune within one Hz. Performing the
Ref-Cal.
That's all.
73
Arie PA3A
Mike Harris schreef op 5-10-2014 13:49:
Any particular reason to need to zero beat to 1Hz? I find the auto
tune function works perfectly well. In fact if I'm one of many
Hi all,
My serial number 12xx is not as low as some, but I had my share of mods
in the K3.
I've done them all myself including adding the LPF on the DSP board
(which was an improvement in my case).
Implementing the mods was never a problem, thanks to the good
documentation on the elecraft
Well,
You defenitely need those filters in the K3.
When signals are strong and the band is busy, signals coming through the
roofing filter (line S9+20dB) is said to pump the hardware AGC, even if
you have the DSP filtering set to a small BW. Anyway, you can certainly
hear that.
Try it on CW,
Hi Buck,
You are talking about Line-out of the K3.
First question is: is it working ok with your headset on? So can you
hear the subRX that way?
If that is working as it should then do the next check:
First thing to look at: To what is the line-out connected?
If you connect it to a stereo
Nice try TJ,
No need for that here though.
73
Arie PA3A
TJ Campie schreef op 24-4-2014 22:07:
Can we get one of these?
73, W0EA
TJ
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Hi Mark,
Yes, if the skimmer is hooked up via audio, that's what will be decoded.
Line-out here is set to 10. Ok in my case.
Experiment a bit withe the soundcard volume/level settings and it will
work for you.
73
Arie PA3A
pastor...@verizon.net schreef op 10-4-2014 1:15:
Good Evening, I
Hi Mark,
A very simple and unexpensive solution that I use is:
- IF-softrock connected to the K3
- ASUS xonar D1 soundcard capable of 192kHz sampling, but a 96kHz rig
will do
- Software: LP bridge and NAP3-sdr
I connected the skimmer to a LP bridge internal comport, did the same
with N1MM
Ron,
This sounds like the 12V ERR which is caused bij bad connectors between
the final 100W PA and the rest of the K3.
Older K3's can run into this error (my #1255 also about one year ago).
It can be resolved easily.
73
Arie PA3A
N6SC schreef op 3-3-2014 22:43:
Elecraft K3 – The radio
I think I found a little thing to improve.
the KAT500 can miss a frequency update from the K3 in a certain situation
To replicate:
- Switch everything on and operate the KAT/KPA/K3 combo as usual with
KAT500 in manual mode
- Activate the KAT500 utility for monitoring the KAT500 and select the
Yes,
The KAT500 needed to be powered first. I also used to do that. That was
in the 'older firmware times'.
With the current FW, up till now I never bumped into any issue no
matter which device was turned on first.
Arie PA3A
Jack Brindle schreef op 21-2-2014 20:34:
The KAT500 needs to
Yep.
My top 3 as well.
(BTW: The KXV3 is very useful, also when you have no intention to add a P3)
73
Arie PA3A
Dave Perry schreef op 21-2-2014 5:55:
K3/100
KAT3 Auto tuner plus second antenna port
KXV3A RX Ant., IF Out and Xverter Interface -- for adding a P3 later
400 Hz 8 pole filter for
Lyle,
What are you saying here?
The DSP filtering as a second IF would do (and I quote you) a /terrible/
job. :-)
73,
Arie PA3A
Lyle Johnson schreef op 5-2-2014 16:35:
snip
The center of the passband to the nominal pitch value only occurs at
higher pitches and/or narrower passbands.
KAT500 FW 01.54 beta
KAT500 Utility 1.13.5.12 for Win.
As far as I know I could set the VSWR thresholds for Autotune and Bypass.
These show up empty when I connect the KAT500 Utily to the KAT500 and
tried to change the settings.
73
Arie PA3A
Don,
I understand this.
Let me explain my thoughts.
Let's suppose we have the different IF's. One analog, the 8Mhz stuff,
and then a DSP IF which is fed by the second 15kHz IF.
I am not a DSP expert. But I would expect that the DSP filter would
filter out whatever bandwidth I would want it
No, not interested.
73,
Arie PA3A
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Bill,
Thanks for sharing this.
Anyway, stray rf or no stray rf, it must be solved. We'll see what the
engineers of Elecraft come up with.
73
Arie PA3A
Bill W2BLC schreef op 10-1-2014 13:09:
snip
Just for grins, I connected my faithful properly designed mil-spec 50
Ohm dummy load to
Steve,
the subRX of the K3 has its protection (an rf triggered relay if the
power coming into the rx is too high).
I've used the K3-KPA500 on a beam and I had a diversity vertical
connected to the subrx quite next to it. No problem at all.
It all depends on the coupling of the antennas. Try
HNY all,
A receive-splitter is a thing that is easily built guys.
Look on W8JI's site and search for combiner or splitter.
I constructed a few magic T splitters myself and they work just fine.
73
Arie PA3A
On 12/31/2013 09:04 PM, als...@nc.rr.com wrote:
A while back there were some
Tony,
I'm using the Heill covers that others use for the headset pro on my CM500
98% fit.
73
Arie PA3A
N2TK, Tony schreef op 26-12-2013 14:20:
Is there such a thing as a noise cancelling black box you can plug in a
headset such as the CM-500 and get good noise canceling? No knobs. Just an
No idea where to get those replacements.
What I did with my earpads is cover the pads with the soft protection
clothing that Heill provides for their earpads. Not a 100% fit but 98%
is just fine.
73
Arie PA3A
Roy Koeppe schreef op 22-12-2013 10:49:
...I ask the same question: Has anyone
Dave,
No noticeble tuning noise in my K3, so I did not do that one. Not in
main, nor subRX.
Seeing how it's done, it should be an easy job.
73
Arie PA3A
Dave Lankshear schreef op 18-11-2013 0:00:
Did you make the VFO tuning noise reduction mod, Arie? My tuning noise was
very bad until
Hi all,
My K3 is a #1255.
I've done all the mods myself. I'll give you a roundup of that , with
the results:
*Solving a problem:*
- K3 Synth ALC = That was a really necessary one, I had that problem and
it needed to be fixed
- K3 external ALC Mod = Necessary since I started to use ALC
Hi all,
Now that we are talking about the tuning of the K3 line. As a matter of
fact, I have the K3-KPA500-KAT500 combo and when tuned, it workes just
fine.All is working as it should but still, this combunation can do much
better. The tuning process is not so smooth as I would expect it to
William,
I know exactly what you mean.
It would be a nice feature that when I press the tune button on the
KAT500, it would key the K3 at the same time and put theKPA500 in
standby (if you have one).
Elecraft shines in clever layed out equipment and firmware. This would
be a logical
Bill,
There were actually pictures of that. The K3/0-mini it was called. It is
an interesting product.
There is a video on youtube, just look for K3/0 mini .
Arie PA3A
Bill W2BLC schreef op 7-11-2013 15:00:
At some point in the past there was a conversation regarding a
removable or remote
John,
That sounds equally good.
Let's hope somebody at Elecraft picks this up. It will smoothen the
operation of the K3-line still more.
BTW, I had the K3-KPA500 combo with me on the TN2MS DXpedition in
October. Without the KAT500 ( not need for it there). That was smooth
operation from
Don,
As always you hit the nail the first time right :-)
In 2012 I built my own SWR meter with a microcontroller readout for Pwr
and SWR. This was one thing i had to fix in the software.
73
Arie PA3A
Op 22-9-2013 21:36, Don Wilhelm schreef:
Jorg,
You said the SWR meter spikes up to and
I think I had the 12V error 10 months ago (K3 #1255).
The 100W PA drops off-line and the K3 falls back to the 12W driver-amp.
Elecraft sent me the necessary parts to cure this problem in the mail.
They also provided me with the quick (not dirty) field fix (6 pictures)
in the e-mail.
Did the
Yes, The NR needs improvement (at least on SSB) and the notch should be
inside the AGC loop. It has been said so many times before.
I know there are people who use the K3/IF - softrock/lp-pan -
comuterSDR-software combo in same cases instead of the K3 SDR. H,
The NB's (DSP and hardware)
The next Elecraft rig will be a real SDR radio (not a hybrid like the K3).
With all the convenience and flexibility of the K3, maybe even better.
Crucial will be the design specs.
I hope that the designspecs will be OK and that the engineers will
listen not only to the hard core contesters,
Hi Milverton,
The K3 has enough software and also in the filtering, but it depends
HEAVILY on the analog IF filtering.
It is a combination, that's why I call it a hybrid.
And for the rest: The next generation radio's will be full DSP, this
technology will come fast. We have already seen
Lynn,
We don't have to worry about processorpower. The hardware is already
there and still developping. And Yes, sampling up to 6m is possible.
Apart from that, the interfacing from the machine to us humans can
certainly do better with some innovation (new ideas) as well.
73,
Arie PA3A
Op
Lynn,
Some filtering ahead or some attenuation or preamp will be there or
better said: are there. What I meant is that the transceiver of the near
future will use an HF A/D converter, so direct digital sampling.
One of the first widely available RX's (at a nice price) was the perseus
RX. Lots
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