Re: [Elecraft] How to download firmware into K4

[Tim Tucker]

I plan to buy one of these to interface the K4 ethernet to my home Wifi:

https://www.amazon.com/IOGEAR-Ethernet-2-WiFi-Universal-Wireless-GWU637/dp/B018YPWORE



On Thu, Jan 14, 2021 at 7:02 AM Bill Frantz  wrote:

> It sounds like I might be in trouble since the only Internet
> access in my shack is via Wifi on my phone. Guess why I'm always
> contesting as unassisted.
>
> 73 Bill AE6JV
>
> On 1/13/21 at 2:37 AM, n...@arrl.net (Bob Wilson, N6TV) wrote:
>
> >Yes, you connect the K4 Ethernet port to your Router or Ethernet switch,
> >then software updates may be downloaded on demand direct from the Internet
> >by tapping Fn > UPDATE and following the prompts.
> ---
> Bill Frantz| If you want total security, go to prison.
> There you're
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Re: [Elecraft] Difference between a K3 and a K3S

[Tim Tucker]

The new I/O board was also an option that was sold separately as an upgrade
to the K3, as was the KXV3B, where the pre-amp was located.  If you find a
K3 with all those upgrades plus the synth (like mine ;), it's pretty close
to the same thing as the K3S.

On Mon, Jan 25, 2021 at 7:48 AM AB1DD  wrote:

> Mike,
>
> You don't get the new knob and bezel!
>
> Seriously, You don't have the new i/o board, with it's sound card built
> in and USB connectivity. There are a couple other things changed on the
> mother board that you can't get anyway with out buying a K3S. They
> weren't showstoppers for me. There is a second preamp, more att. levels,
> built it ATU will bypass, better speaker amp, Fast rx/tx switching,
> extended 630 and 2200 meter bands. There might be more that I can't
> remember, but the synth and i/o board are the biggest. There was a chart
> on the Elecraft website but I don't know where it is now.
>
> Hope this helps
>
> 73,
> Carl
> AB1DD
>
> Resistance is futile.
> (don't know about reactance, though)
>
>
>
> On 1/25/2021 10:29 AM, NJMike wrote:
> > If a K3 has been upgraded to the latest synthesizer - the KSYN3A -
> what's the
> > difference between it and the K3S?
> >
> > Thanks,
> > Mike NJ2OM
> >
> >
> >
> > --
> >
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Re: [Elecraft] Occasional second radio use with KPA500

[Tim Tucker]

W2IHY has switch box solutions that should do the trick.

Tim


On Thu, Feb 4, 2021 at 11:57 AM Lou W0FK  wrote:

> NJ8M wrote
> >> Ideally, I could turn off the K3S, switch the feedline from the K3S to
> >> the
> >> 101ZD, and have use of both the tuner and amp.  Is there an easy way to
> >> do
> >> this?  Perhaps one of those breakout boxes?  Any hints appreciated!
>
> I use a StationProII, which unfortunately is no longer in production, but
> there's a decent resale market for them.
>
> http://www.w8zr.net/stationpro/
>
> I currently have 2 amps and 2 radios, but have had more at one time or
> another. The SPII allows me to swap in any radio and amp combination I
> want,
> and it transfers control lines so you don't have the issue you mentioned.
> When I had my K3S connected to my KPA1500 via the Elecraft control
> connections, I could use another radio without any issues.
>
> 73, Lou W0FK
>
>
>
>
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Re: [Elecraft] K3S RF/SQL Adjustment

[Tim Tucker]

Adjusting the AGC threshold and slope on my K3 to my liking made all the
difference for me.  I did the same on the KX3 and KX2, as well.

Tim

On Wed, Feb 17, 2021 at 11:21 AM Don Wilhelm  wrote:

> Mike and Brett,
>
> Go to my webpage www.w3fpr.com and scroll the left column to the "Noisy
> K3" article for assistance in adjusting the AGC Threshold and slope.
>
> 73,
> Don W3FPR
>
> On 2/17/2021 1:57 PM, NJMike wrote:
> > Brett, I am new to the K3S.  I set mine according to the Fred Cady book.
> > Mine are slightly different from yours.   But I don't have a good
> > understanding of how the settings affect the performance.  Sometimes I
> think
> > the rig is very noisy, even when connected to a dummy load.
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Re: [Elecraft] Have a K-2 SN 01049

[Tim Tucker]

Once you figure it out and if you do sell, please let us know what you get
for it. A local here has a loaded K2/100 that he's been trying to sell for
a while but has only received what he perceives as low offers.  I'm
interested to find out where the market for these is at.

Tim
AE6LX

On Tue, May 31, 2022 at 1:55 PM George Paul Linehan III via Elecraft <
elecraft@mailman.qth.net> wrote:

> Considering selling but need to figure out what is installed, as I haven’t
> used the rig much after purchase. Elecraft is missing a block of records.
> They suggest opening up & taking pics. Any others thoughts appreciated.
> It’s the QRP version with a tuner. Thanks. Paul WA6YCA
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Re: [Elecraft] Have a K-2 SN 01049

[Tim Tucker]

Thanks Don.  He says that you're the one that built it for him and has been
back to you a couple of times (for what, I'm not sure). I'll ask him for
the serial number; it's the K2/100 with DSP and SSB, as well as the KAT100
to go with it.

Tim

On Tue, May 31, 2022 at 2:46 PM Don Wilhelm  wrote:

> Tim,
>
> There are several variations of a K2, so the fair price depends on the
> state of the upgrades (as well as the options installed).  If it is
> above SN3000 and if the KPA100 has been upgraded, it should bring a fair
> price.
> He should state which upgrades and options have been installed.
> If it is below SN3000, and has not been upgraded, it will have a low
> price, but if above 3000 with all upgrades he should get a good price.
> There is a good list of upgrades in the K2AtoB instructions for the base
> K2 (except for the upgraded IF Crystals).
>
> I have a K2 SN 00020 that has been FULLY upgraded, and it performs just
> like a new one.
> Serial numbers above 6400 have all updates included already, but the one
> Chris asked about is SN 1049 and may need a lot of options.  When I was
> working on the K2 a full set of options was price at about $500 and
> likely is higher now.
>
> 73,
> Don W3FPR
>
> On 5/31/2022 5:14 PM, Tim Tucker wrote:
> > Once you figure it out and if you do sell, please let us know what you
> get
> > for it. A local here has a loaded K2/100 that he's been trying to sell
> for
> > a while but has only received what he perceives as low offers.  I'm
> > interested to find out where the market for these is at.
> >
> > Tim
> > AE6LX
> >
> > On Tue, May 31, 2022 at 1:55 PM George Paul Linehan III via Elecraft <
> > elecraft@mailman.qth.net> wrote:
> >
> >> Considering selling but need to figure out what is installed, as I
> haven’t
> >> used the rig much after purchase. Elecraft is missing a block of
> records.
> >> They suggest opening up & taking pics. Any others thoughts appreciated.
> >> It’s the QRP version with a tuner. Thanks. Paul WA6YCA
> >> __
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>
>

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Re: [Elecraft] New K4 Beta Software Available (Release 30/Beta 2)

[Tim Tucker]

Lol, yep. That's why code coverage is a necessary metric in unit testing.

On Wed, Jun 1, 2022, 9:42 PM Walter Underwood  wrote:

> > On Jun 1, 2022, at 7:30 PM, Wayne Burdick  wrote:
> >
> > "There's always another bug," to quote an anonymous sage, but
> please...go for it. We'd love to get hundreds of K4s going on this new
> release, and hopefully promote it to full production status next week.
>
> Q: What does it mean when the Python test suite passes?
> A: It means the test suite is incomplete.
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
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Re: [Elecraft] KX3 and Heatsink

[Tim Tucker]

Several years ago, I published a short article and accompanying video
comparing the original KX3 heat sink to the CoolerKX model including a
basic report on cooling performance. This one has since been discontinued,
but is similar in design to the PAE KX32 model.  I never obtained the
updated Elecraft version, but I would be very (pleasantly) surprised if it
could match the performance of a well designed heat sink such as these.

https://www.worldwidedx.com/threads/cooler-kx-plus-heatsink-for-elecraft-kx3-installation-video.179532/

Tim



On Mon, Jun 13, 2022 at 8:21 PM Jim Brown  wrote:

> On 6/13/2022 7:36 PM, Eric Norris wrote:
> > How difficult is it to install the later factory heatsink on an early
> KX3?
>
> Very easy.
>
> 73, Jim K9YC
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[Elecraft] USB sound recommendations for KX3 I/Q

[Tim Tucker]

Does anyone have a recommendation for a portable-sized USB sound card
adapter to use with the KX3 I/Q?  I had an older Diamond with 192 khz input
that I gave with the sale of K3, but I can't seem to locate any new devices
with 192 khz bandwidth that are also suitable for portable use - like with
a Raspberry Pi 400.  Any ideas?

Thanks!
Tim
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Re: [Elecraft] USB sound recommendations for KX3 I/Q

[Tim Tucker]

Both of the solutions proposed show audio out specs of 192khz, but mic-in
specs of only 48khz.

Tim

On Thu, Jul 7, 2022 at 6:16 AM Gerry Hull  wrote:

>
> https://www.amazon.com/Cubilux-Headphone-Converter-External-Compatible/dp/B08L9C7233/ref=sr_1_5?crid=2NTEYK41W90KM&keywords=192khz+usb+sound+card&qid=1657199725&sprefix=192+Khz+usb+%2Caps%2C75&sr=8-5
> $11, size of a USB plug, 192KHz support.
>
> 73,
>
> Gerry Hull, *W1VE  *Hancock, NH USA
> CWOps #191 | YCCC | CanAm Contest Coalition | Maritime Contest Club
> RadioSport Manitoba | ARRL | RAC | QCWA
> ARCluster dxc.w1ve.com | Telnet or telnet:7373 access | RBN direct feeds
>
>
>
> On Fri, Jul 1, 2022 at 12:26 PM Tim Tucker  wrote:
>
>> Does anyone have a recommendation for a portable-sized USB sound card
>> adapter to use with the KX3 I/Q?  I had an older Diamond with 192 khz
>> input
>> that I gave with the sale of K3, but I can't seem to locate any new
>> devices
>> with 192 khz bandwidth that are also suitable for portable use - like with
>> a Raspberry Pi 400.  Any ideas?
>>
>> Thanks!
>> Tim
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Re: [Elecraft] External Preamp & RX ANT IN/OUT

[Tim Tucker]

I do this with the MFJ 1026 in between the RX IN/OUT.  I can use the 1026
preamp by itself with the RX ANT gain turned to zero or I can put the RX
antenna in line for dual VFO/Band RX or use as a diversity RX setup. There
is another thread about the effectiveness of diversity RX - I was playing
around with this setup last nite on 20m (propagation was pretty good) and
was hearing stations from HI to the East coast on the 80m RX loop almost as
good as the inverted V and some were better.   Plus, this setup gives me
the option to null out unwanted interference and on lower bands (40m seems
most effective) reduce QSB.

Tim

On Wed, Aug 31, 2022 at 9:52 PM Jim Brown  wrote:

> On 8/31/2022 5:33 AM, John Stengrevics wrote:
> > I was told that a preamp can be connected across the RX ANT IN/OUT jacks
> and that certain settings are then changed to make this work.
>
> Connect Ant Out to Preamp Input, Preamp Out to RX In.  Tap RX Ant to
> toggle between the Ant direct and the Preamp.
>
> 73, Jim K9YC
>
>
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Re: [Elecraft] KPA1500 ATU question

[Tim Tucker]

The easiest way is to set the defaults per band in the KPA1500 Utility.

Tim

On Tue, Sep 13, 2022 at 10:11 AM Jorge Diez - CX6VM 
wrote:

> hello
>
> How can I use the KPA1500 to remember what bands need ATU IN and what bands
> need ATU BYP?
>
> I have ATU IN on HF bands, but when I change to 6 mts I need that KPA1500
> change to ATU BYP
>
> Is this possible?
>
> thanks!
> --
> 73,
> Jorge
> CX6VM/CW5W
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Re: [Elecraft] KXPA100 70 to 80w out Max with KX3 drive at 15W???

[Tim Tucker]

Assuming the Power Supply is sufficient, the next thing you should do is
the KX3 + KXPA100 Power calibration. I did this for a fellow ham and it
solved a similar situation:
https://ftp.elecraft.com/KX3/Mod%20Notes%20Alerts/KXPA100+KX3%20Power%20Cal%20rev%20A.pdf

Tim

On Wed, Oct 26, 2022 at 9:10 AM Greg Troxel  wrote:

> [reposted because the list blocked an OpenPGP/MIME signature]
>
> Kyle Krieg  writes:
>
> > In more troubleshooting, I'm finding that when I switch my KX3 to PA mode
> > ON, the KX3 is only putting out around 2 to 3 watts output to the
> KXPA100.
> >
> > But then when I swtich the PA mode to off and change the power button to
> 5
> > to 15W output, the correct amount of RF is output from the KX3.
> >
> > Is there a setting to boost the power when PA mode is on?
>
> There is a feedback loop on output power, and I would expect drive to be
> adjusted for that.  It seems like the KXPA100 is perceiving that output
> power is higher than it is.  Either that or your power meter is off the
> other way.
>
> What happens if you command the output power to 20W, 50W, 75W when using
> the KXPA100?
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Re: [Elecraft] KPA1500 RELIABILITY

[Tim Tucker]

Mine has worked flawlessly for the year or so that I've had it.  I've
pushed it pretty hard and for pretty long durations with some digital
modes, as well.  So far, so good.

Tim

On Mon, Oct 31, 2022 at 3:18 PM Frank Scolaro 
wrote:

> Of the 5 people I know with the KPA1500, 3 of them have made a return trip
> for LDMOS failure.  Also had my RF-Kit blow up twice.  Will have to fix my
> old Henry 3k!
>
> Frank W2YK
>
> -Original Message-
> From: Wes 
> Sent: Oct 31, 2022 6:02 PM
> To: 
> Subject: Re: [Elecraft] KPA1500 RELIABILITY
>
> In my modest station (120V 20A)  I run a KPA500, which has been fine, if
> noisy.
>
> If I was to QRO I think I would opt for tubes.  Less expensive, more
> reliable, better linearity and quieter.
>
> Wes  N7WS
>
> ps.  Thanks for the J68HQ Qs
>
>
>
> On 10/31/2022 1:40 PM, Dr. William J. Schmidt wrote:
> > --- Thinking of going back to tube amps because they are much more
> > forgiving!
> >
> >
> > Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ
> PJ2/K9HZ
> > VP2EHZ
> >
>
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Re: [Elecraft] KPA1500 and K2

[Tim Tucker]

Is your K2 one with a PA Key out?  If so, just an RCA cable and a coax
jumper.

Tim

On Wed, Jan 11, 2023 at 4:03 PM Karin Johnson 
wrote:

> Hello Group:
>
> Can I use a Elecraft KPA1500 with a Elecraft K2???
>
> What accessory cable will I require
>
>
>
> Karin Anne Johnson  K3UU
>
> Palm Harbor, Florida
>
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Re: [Elecraft] New Bands

[Tim Tucker]

How about the KX3?  I tried to dial it up there and it bounced to 44.000.

Tim

On Wed, Jan 25, 2023 at 12:14 PM Wayne Burdick  wrote:

> The K3, being a superhet that involves mixers, uses very narrow-band
> transmit band-pass filtering that doesn't allow operation midway between 10
> and 6 meters. So it is excluded in firmware.
>
> That said, the K3 provides very versatile support for external
> transverters.
>
> 73,
> Wayne
> N6KR
>
>
> > On Jan 25, 2023, at 11:22 AM, Christopher Hoover 
> wrote:
> >
> > What about the K3 for RX on 8m?   Mine bounces me to 44.000 MHz if I try
> to enter 40.662 MHz via CAT or front panel.
> >
> > 73 de AI6KG
> >
> >
> >
> > On Thu, Jun 27, 2019 at 3:39 PM Wayne Burdick  wrote:
> > 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 not trivial.
> > >
> > > On Thu, Jun 27, 2019, 17:36 Dennis Moore  wrote:
> > >
> > >> SDR, should just be a modification to the firmware.
> > >>
> > >> Dennis NJ6G
> > >>
> > >> On 6/27/2019 13:44, David Gilbert wrote:
> > >>> A friend just advised me of a new FCC Petition for Rule Making that
> > >>> requests the creation of a new amateur band for 8m somewhere between
> > >>> 40 and 41 MHz.
> > >>>
> > >>> https://ecfsapi.fcc.gov/file/105260090923685/8%20meter%20PRM.pdf
> > >>>
> > >>> I doubt it gets any traction, but it makes me curious if any mods
> > >>> (software or hardware) would be practical to allow the K3 or K3s or
> K4
> > >>> to cover that range.  I suspect the upper low pass band filter would
> > >>> preclude that possibility.
> > >>>
> > >>> 73,
> > >>> Dave  AB7E
> >
> >
> >
> >
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[Elecraft] KPA1500 Tx sample

[Tim Tucker]

Is there an ETA on when the TX Sample output on the KPA1500 will be enabled
for Pure Signal?

Thx,
AE6LX
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Re: [Elecraft] KPA1500 Tx sample

[Tim Tucker]

Ah...so this means us Elecraft users are waiting on this feature to be
implemented in the K4...got it, thanks!

Tim

On Sun, Feb 19, 2023, 3:56 AM David Decoons  wrote:

> The sample output on the amp is already enabled. You just need a radio
> that supports adaptive predistortion.
>
> Dave wo2x
>
> Sent from my iPad
>
> > On Feb 19, 2023, at 1:19 AM, Tim Tucker  wrote:
> >
> > Is there an ETA on when the TX Sample output on the KPA1500 will be
> enabled
> > for Pure Signal?
> >
> > Thx,
> > AE6LX
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[Elecraft] Modifying the AX2

[Tim Tucker]

For those of you who have successfully modified the AX2 for a higher band,
do you have any tips for disassembly of the coil?  Desoldering the top
looks like it is easily accessible, but I can't quite tell how to get at
the bottom of the coil to desolder it for removal. Is there a simple trick
I'm overlooking?

Tim

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Re: [Elecraft] KX3 2M amp

[Tim Tucker]

Yes, of course. Works fine.

On Sun, Dec 3, 2023, 8:37 AM Steve McKee  wrote:

> Hello,
> I’ve have the 2 meter module in my KX3, and am wondering if I can hook a
> small VHF amplifier to it, to increase power output??
> I’m planning on purchasing the KXPA 100 for the HF side….
> Course these are both for in home use, not in the field…QRP in the field…
>
> Thank You, 73’s
>
>
> null
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Re: [Elecraft] K4 missing features, was OT: The 4-track mind

[Tim Tucker]

I got tired of waiting for special subtraction NR and decided to do
something about the lousy K4 NR on SSB. I bought the BHI Dual Inline NR
module and the results are impressive. I will publish a video soon. Anyone
who says that better NR won't help you make more weak signal contacts,
especially if you're in the big city, doesn't know what they are talking
about on this subject. That plus the decreased fatigue factor...

The last thing we heard from Wayne about missing features was that the
Remote Software would be released as Beta in Q1 2024. Every other ask about
other features has been met with radio silence for months. Expect more of
the same at this point.

Tim

On Sun, Dec 10, 2023, 11:34 AM George Danner  wrote:

> 4. Transmit Monitor
>
> 73 George AI4VZ
>
> On Sun, Dec 10, 2023 at 11:29 AM Dave  wrote:
>
> > Wayne, if you can return to a single track mind for a moment, any update
> on
> > when the K4 missing features will be finished?
> >
> > In no particular order:
> > 1. General coverage, the button still does nothing.
> > 2. Pre-distortion
> > 3. Remote operation via Ethernet
> >
> > In addition, with the K3 there was an update to the firmware which
> allowed
> > VOX to be turned off when the radio was turned off/on. I keep forgetting
> > and accidentally catching my paddles on my K4...
> >
> > Now that higher data rates have been approved for the USA, any chance of
> > fixing the issue where the K4 struggles with Pactor (dropping PTT results
> > in truncated data transmissions due to TX to RX timing issue), The fix is
> > to add a 20 mS PTT hold on delay and consider speeding up the throughput
> to
> > reduce latency too. The same issue with the K3 was fixed in a week of
> being
> > reported.
> >
> > 73 Dave
> > __
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Re: [Elecraft] KX-3/2M transverter

[Tim Tucker]

Assuming you're using the Elecraft mic with the up/down buttons - turn the
buttons off in the radio settings.  There is a known and reported bug in
both the KX3 and KX2 that has never been fixed that causes this problem.

Tim

On Mon, Feb 26, 2024 at 1:40 PM  wrote:

> I have heard of that happening on HF in transmit-perhaps RF getting
> back into the mic when the antenna is rather close to the rig? I don't
> xmit on 2m with mine, I only use it for satellite listening.
> 72
> Howard Kraus, K2UD
>
> -From: "Steve McKee"
> To: elecraft@mailman.qth.net
> Cc:
> Sent: Monday February 26 2024 11:29:44AM
> Subject: [Elecraft] KX-3/2M transverter
>
>  Hi all, I've got the 2M transverter installed and it works great. I
> have a
>  35W amp inline so I use it a lot on 2M locally.
>  But the issue I'm having is it randomly shifts 5khz on me. Seem to do
> it
>  when I put the mic down, so bought a new one. It didn't help still
> have the
>  problem.
>  I haven't noticed if it does it on the HF side as I haven't spent a
> lot of
>  time on it.
>  Anyone have this experience??!
>
>  Steve//KE0RSI
>
>  null
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[Elecraft] OT: W9WDX Racing in the Air at Pennzoil 400

[Tim Tucker]

Hi all,

I'm activating the Pennzoil 400 at Las Vegas Motor Speedway usingrhe
Elecraft KX3 and KXPA100.  I'll mostly be around 14.6mhz for a few hours
during the day all weekend if you'd like to make the contact.

Tim
AE6LX
W9WDX Amateur Radio Club
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Re: [Elecraft] OT: W9WDX Racing in the Air at Pennzoil 400

[Tim Tucker]

Sorry, 14.260

On Fri, Mar 1, 2024, 10:25 AM Tim Tucker  wrote:

> Hi all,
>
> I'm activating the Pennzoil 400 at Las Vegas Motor Speedway usingrhe
> Elecraft KX3 and KXPA100.  I'll mostly be around 14.6mhz for a few hours
> during the day all weekend if you'd like to make the contact.
>
> Tim
> AE6LX
> W9WDX Amateur Radio Club
>
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Re: [Elecraft] OT: W9WDX Racing in the Air at Pennzoil 400

[Tim Tucker]

If interested, here's a short video I made of the event, which also
showcases the KX3 and KXPA100

https://youtu.be/s_7H2Z6rpQE?si=xZ1XnbDaUnXMXS0L

On Fri, Mar 1, 2024, 12:17 PM Tim Tucker  wrote:

> Sorry, 14.260
>
> On Fri, Mar 1, 2024, 10:25 AM Tim Tucker  wrote:
>
>> Hi all,
>>
>> I'm activating the Pennzoil 400 at Las Vegas Motor Speedway usingrhe
>> Elecraft KX3 and KXPA100.  I'll mostly be around 14.6mhz for a few hours
>> during the day all weekend if you'd like to make the contact.
>>
>> Tim
>> AE6LX
>> W9WDX Amateur Radio Club
>>
>
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Re: [Elecraft] Amplifier

[Tim Tucker]

And yet they certified it.
http://www.radio-ham.eu/Download/FCC-Certification.pdf


On Tue, Aug 10, 2010 at 1:13 PM, Robert Friess  wrote:

> If the SPE does that, which is 17dB gain, then it does not conform to FCC
> rules that limit gain to 15dB.
>
> Bob, N6CM
>
> On Tue, Aug 10, 2010 at 12:37 PM, W4GRJ  wrote:
>
> > Depends on the Amplifier, I have a SPE Expert 1K-FA.10watts drive =
> 500
> > watts out
> >
> > Jack
> > W4GRJ
> >
> >
> > -Original Message-
> > From: elecraft-boun...@mailman.qth.net
> > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lyle Johnson
> > Sent: Tuesday, August 10, 2010 1:33 PM
> > To: elecraft@mailman.qth.net
> > Subject: Re: [Elecraft] Amplifier
> >
> >
> > > ...I presently have a K3 10 and am wondering if the 10 watts will be
> > enough to kick the new amp
> >
> > Yes, it will.  You'll likely get more than 100 watts but less than 200
> > watts output with 10 watts of drive.  If you want the full 500+ watts,
> > then you'll probably need 30W to 40W of drive.
> >
> > 73,
> >
> > Lyle KK7P
> >
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Re: [Elecraft] Amplifier

[Tim Tucker]

If it has, it hasn't hit the FCC website yet.  I just searched.



On Tue, Aug 10, 2010 at 1:35 PM, Phil LaMarche  wrote:

>
> Does any one know if the KPA500 has been certified yet?
>
> Phil
>
>
> Philip LaMarche
>
> LaMarche Enterprises, Inc
> p...@lamarcheenterprises.com
> www.LaMarcheEnterprises.com
>
> 727-944-3226
> 727-937-8834 Fax
> 727-510-5038 Cell
>
> www.w9dvm.com
>
> K3 #1605
>
> CCA 98-00827
> CRA 1701
> W9DVM
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Tim Tucker
> Sent: Tuesday, August 10, 2010 4:31 PM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Amplifier
>
> And yet they certified it.
> http://www.radio-ham.eu/Download/FCC-Certification.pdf
>
>
> On Tue, Aug 10, 2010 at 1:13 PM, Robert Friess  wrote:
>
> > If the SPE does that, which is 17dB gain, then it does not conform to
> > FCC rules that limit gain to 15dB.
> >
> > Bob, N6CM
> >
> > On Tue, Aug 10, 2010 at 12:37 PM, W4GRJ  wrote:
> >
> > > Depends on the Amplifier, I have a SPE Expert 1K-FA.10watts
> > > drive =
> > 500
> > > watts out
> > >
> > > Jack
> > > W4GRJ
> > >
> > >
> > > -Original Message-
> > > From: elecraft-boun...@mailman.qth.net
> > > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lyle Johnson
> > > Sent: Tuesday, August 10, 2010 1:33 PM
> > > To: elecraft@mailman.qth.net
> > > Subject: Re: [Elecraft] Amplifier
> > >
> > >
> > > > ...I presently have a K3 10 and am wondering if the 10 watts will
> > > > be
> > > enough to kick the new amp
> > >
> > > Yes, it will.  You'll likely get more than 100 watts but less than
> > > 200 watts output with 10 watts of drive.  If you want the full 500+
> > > watts, then you'll probably need 30W to 40W of drive.
> > >
> > > 73,
> > >
> > > Lyle KK7P
> > >
> > > __
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Re: [Elecraft] Amplifier

[Tim Tucker]

The FCC Certified it, so who cares?  If you spend all your time trying to
figure out why our government has rules that it routinely ignores, you're
going to drive yourself crazy.

The speed limit on the national highway system is 75mph.  Yet the NTSB has
no problem with manufacturers that sell cars that go twice that fast.
Meanwhile, you're surprised that the FCC ignores the 15db gain rule?
Really?  Anyone could come up with a thousand examples.


On Tue, Aug 10, 2010 at 7:51 PM, Brett Howard wrote:

> Why be sorry I'm only wondering... I'd thought that over 15dB of gain
> was against the rules.  10W is 40dBm thus +15dBm is 55dBm or a little
> over 300Watts.
>
> Lyle's aforementioned 35 watts would be 45dBm +15 gives you 60dBm
> which the KPA500 aint a gonna do...  Guess the KPA500 is probably only
> going to provide around 12dB of gain.  While if your measurements are
> correct the SPE Expert 1K-FA is giving you 17dB of gain.
>
> Not challenging you I was just wondering.
>
> ~Brett (N7MG)
>
> On Tue, Aug 10, 2010 at 5:58 PM, W4GRJ  wrote:
> > The Expert 1K-FA is FCC Certified.maybe my meter is not accurate
> >
> > In any event, I am sorry I ever commented on this reflector with such
> > responses.
> >
> > Jack
> > W4GRJ
> >
> >
>
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Re: [Elecraft] K3 : SSB modulation

[Tim Tucker]

Are any of you guys driving your K3 with W2IHY or other audio rack gear?  If
so, I'm curious as to the settings you ended up with on the rig.  I'm still
waiting for my K3 to get back from the factory, but I plan on running the
full stack of W2IHY gear with a Heil GM-5 Mic.  I imagine I will probably
end up with the comp and EQ on the rig turned off, but I'd like to hear what
others do.

Tim
AE6LX

On Fri, Aug 20, 2010 at 7:57 AM, Philippe Trottet  wrote:

> Hi James,
> I'm using MH2 also for Field day opertions and almost same as you, set
> MIC=2 & COMP=20  TX equalizer has been adjust to my loud voice given
>  preferential to medium high audio. Great
> 73's
> Philippe A65BI
> K3#3616
>
> >>>  20-08-2010 18:54 >>>
> Who uses the Elecraft hand mic? I do and mic gain has to be set low; i.e.
> around 8 or 9 to prevent clipping and flat topping  as viewed on a monitor
> scope.  This is with mic sensitivity set to low in the menu.  I was once
> told that the hand mics are a tad hot, but mine seems to be excessively so.
>
> Regardless, my comp is set to 15 or 20 and I get excellent audio reports.
>
> James K2QI
> Sent via BlackBerry from T-Mobile
>
> -Original Message-
> From: Stephen  Prior 
> Sender: elecraft-boun...@mailman.qth.net
> Date: Fri, 20 Aug 2010 10:21:00
> To: elecraft
> Subject: Re: [Elecraft] K3 : SSB modulation
>
> I use the Heil MD2 microphone which has an electret element.  I have both
> compression and mic gain set to 25, and mic set to front panel low with
> bias.
>
> I have far more 'talk power' than I have enjoyed with any previous radio.
>
> 73 Stephen G4SJP
>
>
> On 20/08/2010 04:24, "Joseph Trombino, Jr"  wrote:
>
>
> >> Hi
> >>
> >> We are the proud owners of 6 K3/100 used at the FY5KE contest station.
> >> These radios has been delivered around mid-2008 and their serial numbers
> >> are in the 012xx range.
> >>
> >> After using mostly these rigs for SSB contesting in FY5KE or in other
> >> places, we are still facing a lack of "dynamics", "punch",
> >> "penetration", "power", whatever you call it. In other words, when
> >> comparing this rig to our radios we previously used (TS-850), with the
> >> same microphone (Heil HC-4 element) and the same output RF power, the K3
> >> is clearly way behind in term of "average power" we can read on the Bird
> >> wattmeter wired on its RF output. Even if observing the wattmeter needle
> >> is not a very scientific measurement (we admit it), various comparative
> >> reports on the air do confirm our feeling.
> >>
> >> We spent time on various available settings (mic gain, compressor level,
> >> etc), with no luck, excepted a very distorted and awful audio to roughly
> >> reach the same level, which is not acceptable.
> >>
> >> After a little Googling, it appears that other contesters suffers the
> >> same issue (e.g. www.bavarian-contest-club.de/projects/K3_english.pdf
> >> pages 6 and 10).
> >>
> >> Some questions :
> >>
> >> - Do other contesters (or not) here have noted the same problem ?
> >> - What settings did you modified (or not) to achieve a good result ?
> >> - Is there any possible HW or SW upgrade we aren't aware of, that could
> >> help us ?
> >>
> >> We must confess we are currently preparing our next contest season, and
> >> we are seriously considering reselling these radios and bring others
> >> Japanese models if we can't solve this problem, despite we really
> >> appreciate them in many other aspects (size, weight, etc.).
> >>
> >> 73
> >>
> >> For the FY5KE/Win-Test team,
> >>
> >> Larry - F6FVY
> >
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Re: [Elecraft] K3: Low speaker output problem

[Tim Tucker]

Because of this thread I decided to do a quick comparison of my K3 to
another rig.  I have the W2IHY iPlus hooked up to both the K3 and 746 Pro
using the Icom SP-21 speaker.  For those that aren't familiar with the
iPlus, it allows you (among other things) to switch your audio stack and
output speaker between two rigs.  I switched both rigs back and forth on
some strong 75m stations tonight with both rigs' NB and NR turned off and RF
gain turned to max on each.  Both rigs AGC were set to slow for posterity's
sake.  I'm using the proper speaker cables on both rigs running to the iPlus
switch and then from the iPlus to the SP-21.

I tested the entire AF range of both rigs which switching back and forth on
the same RX stations.  The results of this test show me that the Icom 746
Pro audio output is significantly greater than the K3.  I don't have any
test equipment to measure this, but I could probably make an audio recording
if desired.  The K3's audio wasn't too low and was generally very
comfortable, but the 746 Pro did have more output potential if desired.  I
could see how the greater volume potential would be desired by those who are
hard of hearing.  Keep in mind that this test is using a MONO speaker.  I
could do the test again using some stereo headphones output from the iPlus
if there is any interest.

Tim
AE6LX

On Tue, Sep 7, 2010 at 8:35 PM, Joe Subich, W4TV  wrote:

>
> Dave,
>
> Check to confirm that you are using a 3.5mm plug on your speaker
> cable and not a 1/8" plug.  The difference is slight *BUT* it can
> cause the "sloppy fit" behavior you are seeing.
>
> 73,
>
>... Joe, W4TV
>
>
> On 9/7/2010 7:50 PM, David Lankshear wrote:
> > I've had several bouts of no output and a couple of low output from
> > my K3 #1122.  It's been down to the speakers jack socket seemingly
> > being a very sloppy fit with every one of several changes of jack
> > plug.
> >
> > I thought I'd tamed it by taping the speaker wires to another firmly
> > secured cable in the hope that would keep all well and truly
> > together, but on switching on after a few weeks of lack of use, my
> > outboard speakers were "at it" again, and a good wiggling of the jack
> > plug was required to alleviate the problem.
> >
> > I don't know if this is a common problem or a unique one, but it is a
> > minor irritant, especially if one speaker goes out and then comes
> > back on as the other goes off.  I kind of "wobble" on my chair when
> > that happens HI!
> >
> > 73 all.  Dave  G3TJP
> > __
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[Elecraft] line in/line out question

[Tim Tucker]

Is there a way to configure the rear mic and rear speakers to work as an
additional line in/out while the front mic is also active (similar to the
regular line in/out).

Here's the situation:  I have the line in/out rigged up to the PC for
soundcard modes.  However, I would also like to hook up a TNC for
Amtor/Pactor ARQ modes.  It wasn't very long ago that it was quite common on
our MARS nets to pass traffic in both Soundcard (MT63) modes and then again
in ARQ (Amtor or Pactor) for stations that needed it.  Under this scenario,
the operator must be able to address the net by voice and quickly change to
the other modes as needed or requested, and then back to voice; there is no
time for fooling around with menu options to switch mic inputs.  I can see
this also being necessary for any operator that needs to operate MARS
digital nets using both a Pactor III modem and Winmor (soundcard tnc) modes.


On my Icom 746 Pro, I have more than one AF in/out on the rear panel, so
having both a TNC and soundcard hooked up and using them both within seconds
of each other is trivial.  Is there a way to do this with the K3?

Thanks for any suggestions,

Tim
AE6LX
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[Elecraft] clear a programmable function?

[Tim Tucker]

I accidentally set a menu config to programmable function M1, overwriting
the macro I had stored there.  I've tried clearing M1 by tapping REC, M1,
REC, but it is not working.  I know this because when I try to write the
macro back to M1 using the K3 utility, M1 still behaves in the way I don't
want it to.  BTW, I accidentally programmed M1 for both the press and hold
function, so I'm trying to reset both.

Any insight?
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Re: [Elecraft] SSB transmit audio - Where's the punch?

[Tim Tucker]

"Setting the compression that high really makes a huge difference in average
output "

It makes *some* difference in average output.  There is nothing I have been
able to do to get the K3's average output anywhere close to what my Icom 746
Pro would do.  The best average power numbers I have seen on my K3 with
various mic and settings combos are about 40-45 watts on specific syllables
or words.  Typically I see about 30 watts with normal speaking.   I have
tried with the built-in processing, with outboard compression, a combination
of the two, various mics, etc.  On my Icom 746 Pro, I see 65 watts AVG with
the same mic and outboard compression.   I spent hours doing the tests into
a dummy load, even comparing adding a Yaesu 897D into the mix for comparison
purposes.

The K3 sounds great IMO, but it does not have the same AVG SSB output power
of some other rigs available.  That may or may not be important to you, so
decide for yourself how much stock you put in that.  There are more details
of my findings here:
http://www.worldwidedx.com/hf-bands-hf-rigs/73806-elecraft-k3-review-2.html#post228882.
Personally, I think it would be interesting to see someone do the same tests
using some better test bench gear.  I've sold most of mine...

Tim



On Mon, Oct 4, 2010 at 11:13 AM, Rob May  wrote:

>
> The K3 has sufficient equalization to tailor the sound of any microphone,
> the external equalizer is completely unneeded in my opinion.  My cheap-o
> computer gaming headset sounds really good (through the monitor) and gets
> great reports on the air.  When chasing DX or during a contest I'll turn the
> compression up to 25.  I've heard my signal through a couple of different
> radios that have their output online.  The audio is surprisingly good.
>  Setting the compression that high really makes a huge difference in average
> output and it makes a big difference on the other end.
> Rob
> NV5E
>
>
> > From: w...@verizon.net
> > To: elecraft@mailman.qth.net
> > Date: Mon, 4 Oct 2010 13:41:06 -0400
> > Subject: [Elecraft] SSB transmit audio - Where's the punch?
> >
> > I need some advice in how to get the same punch my fellow contester gets
> on
> > his FT-1000MP.  He claims the K-3 audio will never be as good as Yaesu,
> > Kenwood, or ICOM.
> >
> >
> >
> > Yesterday we spent several hours between ourselves and several European
> > stations tuning and testing.  I never got a bad audio report, BUT I never
> > got a report I had the same PUNCH!!!  He reduced power and still
> overtalked
> > me.
> >
> >
> >
> > I have tried HC-4, HC-5, and HC-6 using W2IHY eight band EQ with the
> EQPlus
> > with some compression from the K-3.
> >
> >
> >
> > I need some ideas before the next contest.
> >
> >
> >
> > 73, Dick, WN3R
> >
> >
> >
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Re: [Elecraft] SSB transmit audio - Where's the punch?

[Tim Tucker]

Not to anyone that has actually heard it on the air.  I have a screen print
of what it looks like on a P3 around here somewhere.  Yep, you're "just
guessing" :) :)

On Mon, Oct 4, 2010 at 12:37 PM, Grant Youngman  wrote:

>
> On Oct 4, 2010, at 2:00 PM, Tim Tucker wrote:
>
> > "Setting the compression that high really makes a huge difference in
> average
> > output "
> >
> > On my Icom 746 Pro, I see 65 watts AVG with
> > the same mic and outboard compression.   I spent hours doing the tests
> into
> > a dummy load, even comparing adding a Yaesu 897D into the mix for
> comparison
> > purposes.
>
> Just guessing here, but  65 watts of "average" power out with 100 watts
> peak must sound pretty awful  ..
>
> Grant/NQ5T
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[Elecraft] K3 Feature Request

[Tim Tucker]

For AM users, could we get the ability to invert the voice phase as a
feature of the K3?  This would allow us to make sure that the audio phase
orientation is correct where the positive peaks are always greater than the
negative peaks.  Even better, it would be cool if the rig could auto detect
an incorrect phase orientation and invert it automatically for us.

Thanks for considering it...
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Re: [Elecraft] K3 Feature Request

[Tim Tucker]

OK, thanks for the education.  I'm not an RF engineer, but every product on
the market I've come across (doesn't mean much) and discussion I've read
(start with http://www.nu9n.com/am.html) calls what I'm talking about as
phase inversion.  They could all be using the wrong term for all I know.

I currently am able to achieve what I'm looking for by using the W2IHY iPlus
in the audio chain driving the K3.  You just flip the Invert Phase switch
when you need it.  There are Behringer products that do the same thing.  You
can SEE the difference it makes on a scope or even a simple AVG reading
power meter when you have correct phase.  For example, on an AVG reading
meter, with negative or incorrect phase, you actually see negative
deflection on the meter needle.  When you have it correct, you see positive
deflection on the meter needle.  It's more obvious on the scope, as pointed
out on NU9N's site. I don't currently have a scope, but I've done the same
tests in the past.

It would be really cool if the K3 could do this too.



On Tue, Oct 5, 2010 at 5:39 PM, Jim Brown  wrote:

>  On 10/5/2010 5:11 PM, Tim Tucker wrote:
> > incorrect phase orientation
>
> The correct word to say what you mean is POLARITY, NOT PHASE.  Phase is
> a continuously valued function, and has the units of degrees. Polarity
> is the word that describes whether the waveform is inverted or not.
> Changing the phase of a signal is VERY different from changing its
> polarity.
>
> What you're asking for is a very good idea. Circuits that sense which
> part of the signal is hotter and reverses it if necessary to keep the
> hottest part on top (to prevent carrier cutoff) have been around since
> at least the 50s.
>
> 73, Jim K9YC
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Re: [Elecraft] K3 Feature Request

[Tim Tucker]

Yep, that's exactly what I'm thinking.  You either do it automatically or
give the user the ability to switch it themselves.  For the UI, it could be
as simple as an additional option in the EQ settings for AM mode (press and
hold 1 to Invert Phase, or something like that...).

I think you guys get the idea.  I thought about this because I noticed the
problem on my own station and was able to correct it with the iPlus box and
thought it would be SWEET if it was built into the rig.



On Tue, Oct 5, 2010 at 8:44 PM, Joe Subich, W4TV  wrote:

>
> Or Lyle could simply include the "phase scrambler" (phase rotation)
> function in the DSP.  IIRC, the Kahn box simply ran the audio through
> a filter that caused a frequency dependent phase rotation resulting
> in audio that had symmetric positive and negative peaks and avoided
> issues with microphone polarity that was voice specific (e.g., one
> DJ's voice was "positive dominant" while another was "negative."
>
> 73,
>
>... Joe, W4TV
>
>
> On 10/5/2010 10:41 PM, Luis V. Romero wrote:
> > Or, he could scour E-Bay for a Kahn Symetra-Peak!
> >
> > -lu-w4lt-
> >
> > Message: 37
> > Date: Tue, 05 Oct 2010 17:39:37 -0700
> > From: Jim Brown
> > Subject: Re: [Elecraft] K3 Feature Request
> > To: elecraft@mailman.qth.net
> > Message-ID:<4cabc549.6000...@audiosystemsgroup.com>
> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> >
> >On 10/5/2010 5:11 PM, Tim Tucker wrote:
> >> incorrect phase orientation
> >
> > The correct word to say what you mean is POLARITY, NOT PHASE.  Phase is
> > a continuously valued function, and has the units of degrees. Polarity
> > is the word that describes whether the waveform is inverted or not.
> > Changing the phase of a signal is VERY different from changing its
> > polarity.
> >
> > What you're asking for is a very good idea. Circuits that sense which
> > part of the signal is hotter and reverses it if necessary to keep the
> > hottest part on top (to prevent carrier cutoff) have been around since
> > at least the 50s.
> >
> > 73, Jim K9YC
> >
>
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Re: [Elecraft] SSB transmit audio - Where's the punch?

[Tim Tucker]

I wanted to make sure and follow up my AVG power output comments that I made
earlier in this thread because I spent some more time testing.  Several
private emails confirmed my suspicion that others were able to achieve
better results than I was seeing.

Tonight after playing around with the rig some more,  I was actually able to
get the AVG power output real close to 60 watts on on specific syllables or
words by playing with the audio response, audio gain input levels, etc.
Typical voice response produced about 40-45 watts AVG.  This is considerably
better than I reported earlier, all things considered.  What's different
about the K3 is that it's AVG power output seems very sensitive to a lot of
variables, especially your EQ settings.  The K3 CMP setting quickly reached
a point of diminishing returns for me, unlike what others are reporting, but
you probably have to with what works for your voice/mic combination.  I just
can't run that much compression before the audio sounds like trash to me.

This definitely isn't a plug and play rig.  It is probably easier to achieve
certain results with other rigs, but what is nice about the K3 is the
ability to tweak almost everything to your heart's content.



On Tue, Oct 5, 2010 at 7:36 PM, Luis V. Romero  wrote:

> Jim:
>
> Its very mildly cardioid then!  :)  This aint no shotgun, Jim!
>
> I choose not to compensate for the boominess with EQ and not eat this mic
> like an HC4 as it adds to the distortion I hear in the monitor and see on
> the scope.  I would rather run the mic gain a little hotter and put up with
> the room tone than deal with the boominess electronically.  I can always
> gate the room tone.  I have always tried not to "fix stuff in the mix" but
> I'm severely crippled with a very poor operating environment for sound.
> Then again, this is Ham Radio, not work!
>
> And with 12 volt finals, I need all the signal cleanliness I can get  :)
>
> Of course, you are right, but I'm walking a fine line between distortion
> and
> punch.  I find the fatter foam windscreen from an Audio Technica Pro8HEx
> mic
> helps me place the CM-500 capsule at just the right distance from my mouth
> for me.
>
> -lu-
>
>
> Message: 27
> Date: Tue, 05 Oct 2010 14:25:59 -0700
> From: Jim Brown 
> Subject: Re: [Elecraft] SSB transmit audio - Where's the punch?
> To: elecraft@mailman.qth.net
> Message-ID: <4cab97e7.4000...@audiosystemsgroup.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>  On 10/5/2010 2:09 PM, Lu Romero wrote:
> > First, the DX4 is a "close talking" microphone.  You have to
> > almost eat it for it to work right.  The CM-500'ds Electret
> > capsule has a pronounced proximity effect.  You HAVE to keep
> > it AT LEAST an inch from your mouth or it sounds mushy and
> > bassy.  This, combined with its omnidirectional response and
> > the need to run mic gain relatively high to command good
> > peak to average ratios from the K3 processor, cause "much"
> > room noise (not a lot really, but Im picky) to find its way
> > to the transmitter.
>
> The CM500 is NOT an omni-directional mic -- you've noted that it has
> proximity effect, and that's BECAUSE it is a cardioid (directional) mic.
> As to the proximity effect -- you can compensate that the same way that
> virtually ALL vocal mics are compensated within the mic -- with
> additional low end rolloff.
>
> 73, Jim K9YC
>
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>
>
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Re: [Elecraft] K3 SUB AF - NOR or BALANCE?

[Tim Tucker]

BT is a great idea, but to do it right, you wouldn't want to make it
available for only mics & speakers.  Once you have the BT chipset in the K3,
there's no reason why you couldn't implement BT serial connectivity to a
notebook computer, as well.  The P3 and K3 could communicate with each other
via BT.  I strongly believe that ham radio products in general really need
to start rapidly implementing some of the common place technologies found in
every day life to help keep ham radio relevant and interesting to the
younger generation (even the 30 somethings!).  I believe that Elecraft is
one of the companies that is positioned to start to do that, but it has to
start somewhere.  Imagine if the KIO3 board had a USB port and BT chipset
embedded :) :).

BTW, even Cobra Electronics has a BT CB now that integrates with your cell
phone.  I'm not sure that's useful to me, but if a CB company is starting to
find uses for BT technology, I'm sure an amateur radio company could also ;)




> The first would be a Bluetooth adapter for the K3 that would allow use
> of BT stereo headphones.  These devices already exist, it remains merely
> to figure out how to add a module to the K3.  At least one HAM radio
> manufacturer offers this option, so this can't be that difficult.
> There are many high quality stereo BT headphones on the market that cost
> under $100.   I would pay up to $200 for a reliable and stable BT
> adapter for the K3.  If this could be made to work with a BT stereo
> headphone and mic with PTT that would be even better.
>
>
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Re: [Elecraft] Seeking external speaker recommendations

[Tim Tucker]

I used the SP-20 on my K3 for a while, mainly on SSB.  I didn't like it.   I
could never get enough volume out of the speaker without distortion from the
K3 to suit me.  Incidentally, I also used it on a 746 Pro and never
experienced this problem.

I know everyone is going to say get an unpowered speaker, but I purchased
the West Mountain Radio COMspkr for $40 and they work very well and sound
really good to me (use your 8 band RX EQ to tailor the audio) and I've never
experienced RFI problems, even at Kilowatt Plus power levels.  The volume
level issue that bugged me with the SP-20 is also a non-issue, of course.
Powered speakers may not be for everyone, but 40 bucks isn't a lot to spend
after you've plopped down over $3K for a rig, especially you don't want to
hassle with finding the speaker that gives you the volume level that you're
looking for.



On Mon, Oct 25, 2010 at 7:14 AM,  wrote:

> George,
> The back up rig here is an Icom 746Pro that I had also purchased the SP-20.
>  The speaker has twin inputs, so one from the K3/100 & one from the 746Pro.
>
> I can't really attest to the SSB quality, as I never use that mode.  But,
> the sound quality for CW when using the K3 is fantastic.  It has 4
> selectable audio filters.
>
> Best of luck with your search.
>
> 73
> Jim - KE8G
>
>
>  "George A. Thornton"  wrote:
> > I am looking for recommendations on external speakers for the K3.  I am
> > primarily interested in voice modes.
> >
> > I would use these primarily in my shack.  My contesting has thus far
> > been limited to Field Day, but who knows where this might lead.
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Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?

[Tim Tucker]

I have the same experience that Philippe has.  I thought I had one or both
3cx800A7 tubes  going flat in my amp when I had to increase the drive to a
level I never have been close to approaching to get 1KW out.

It's great to hear that you guys are on this new glitch so quickly.

Tim

On Thu, Nov 4, 2010 at 9:54 PM, Wayne Burdick  wrote:

> We're working on the SSB problem.
>
> 73,
> Wayne
> N6KR
>
> On Nov 4, 2010, at 9:49 PM, Philippe Trottet wrote:
>
> > Same thing to me, I was noticed it when put my Amp w/GU84B on, need
> > 20w+ to obtain 500w in ssb instead of my normal 16w...
>
>
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Re: [Elecraft] New K3 Beta Release: APF for CW, "Fast Monitor" & improved TX gate for voice modes

[Tim Tucker]

Well, that was fast.  THANK YOU!!

BTW, everyone else has commented on the APF, but as a mainly SSB guy, I love
the new Fast monitor and improvements to the noise gate.  Well done!


On Fri, Nov 5, 2010 at 5:48 PM, Lyle Johnson  wrote:

> On 11/5/10 5:44 PM, James Sarte wrote:
> > Hi Lyle,
> > Nice work.  Low SSB output solved on my end with this latest beta.
> :-)
>
> Thanks, James.
>
> Lyle
> > 73 de James K2QI
> >
> > On Fri, Nov 5, 2010 at 7:33 PM, Lyle Johnson  > > wrote:
> >
> > This release fixes a problem with low initial output in SSB Tx.
> >
>
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Re: [Elecraft] K3: Are the birdies really birdies

[Tim Tucker]

I long ago diagnosed several of my RFI problems on ethernet devices
throughout the house.  I tried everything to get rid of it including making
special ethernet jumpers I put at the source devices with ferrite and
by-pass capacitors between the offending pair of wires (the TX/RX wires).
Of course the caps worked, but since the ethernet signal is AC, it also
killed the network, LOL!

Shielded cable on long runs that is grounded at both ends definitely makes a
big difference...at least it did for me.  It doesn't get rid of it entirely,
but it helps.  Some devices are worse than others, and of course it's more
pronounced on some bands than others.

On Tue, Nov 16, 2010 at 4:05 PM, Kok Chen  wrote:

>
> On Nov 16, 2010, at 3:02 PM, Mike K2MK wrote:
>
> > Moving the shack CAT 5 cable away from other radio related cables is
> having a positive effect. Next I'm going to try a shielded CAT 5 cable from
> the wall to the shack PC.
>
> I can attest to the effectiveness of shielded Ethernet cables (for me
> anyway).
>
> After fighting with Ethernet noise, I finally swapped out all the Ethernet
> switches in the house with ones that have metal enclosures (Netgear GS
> series), and replaced all UTP CAT-5 cables to STP CAT-6 cables.  The
> shielded switches by themselves didn't do much until I went to the STP
> cables.
>
> I couldn't find shielded CAT-5 at the local Fry's and just went with CAT-6.
>
> I believe the critical difference is STP (shielded twisted pair) vs UTP
> (unshielded) and not the difference of going from CAT-5 to CAT-6.  If you
> can't find shielded Ethernet switches, perhaps at least look for ones where
> the RJ-45 jack has the metal tab that connects to the shield of the STP CAT
> cable.
>
> I still have a box full of unshielded CAT-5 cables that I have been using
> for controlling remote antenna switches and such :-).
>
> Going to WiFi can also help, but some WiFi routers, like the early Apple
> Airport Express, are themselves very RF noisy in the HF region.  I don't
> know if the newer AirPort Express are any better since I had banned the
> Apple AirPort Express from this QTH :-).
>
> 73
> Chen, W7AY
>
>
>
>
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Re: [Elecraft] K3: USB port

[Tim Tucker]

Count down to thread closure...

USB is Serial comms by definition (Universal SERIAL Bus).  Coding for USB is
not a huge hassle for software developers, at all.  If it was, it never
would have been adopted as a standard in 1996 (almost 15 years ago).
Drivers aren't really a big issue, either, especially if you're just
starting out using it as a serial DB9 replacement.  I've voiced my vote for
a USB port before.  It opens up many other possibilities for use besides
just serial comms.  I realize there are other priorities, but if the other
rig manufacturers can do it, I have no doubt that Elecraft can.  My guess
it's just a matter of "when"



On Thu, Nov 18, 2010 at 4:50 PM, Mike  wrote:

> I'm not sure how you envision moving the audio to USB.
>
> I think putting the USB port in the K3 would open a Pandora's box re:
> drivers.
>
> If you're asking to just move the serial to USB adapter into the rig, there
> is NO gain.
>
> If you're asking to do away with serial port comms entirely and go to USB
> only,
> you're creating a huge hassle for the software authors, as well as opening
> a
> Pandora's box re: drivers for it.
>
> 73, Mike NF4L
>
> On 11/18/2010 7:31 PM, James Sarte (K2QI) wrote:
> > Hello group,
> >
> > I know Wayne has mentioned several times in the past that they had
> > considered all possibilities when it comes to PC interfaces for the K3,
> > including USB.  In fact, he says the following on 16 June, 2009:
> >
> > "The KIO3's digital I/O module could be replaced with one that has USB
> > rather than RS232 -- or better yet, both. We planned for this.
> >
> > The reason we went with RS232 initially is that many hams are still
> > using PCs that have only RS232 ports. Those who prefer to use USB can
> > use an inexpensive USB-to-RS232 adapter. There is no difference in I/O
> > performance between the two methods. "
> >
> > Just wanted to revisit this topic and find out if anyone has heard
> anything
> > more regarding a possible USB interface for the K3.  I know it's not for
> > everyone, but for myself and perhaps others out there, the ability to
> carry
> > all data, including audio on a single cable would be convenient.  Right
> now,
> > I'm using a Keyspan USB to RS232 adapter for data, along with two
> separate
> > stereo cables for audio.  I don't have any real complaints with that
> setup,
> > but could be problematic when transferring the rig around from computer
> to
> > computer.
> >
>
>
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Re: [Elecraft] K3: Latest Beta FW - Vox, TX Gate and Notch

[Tim Tucker]

I'd rather have dual manual notch capability like the IC-7000...



On Wed, Nov 24, 2010 at 12:49 PM, Nate Bargmann  wrote:

> * On 2010 24 Nov 12:40 -0600, Jim Cox wrote:
> > I vote no on this option..
>
> I'd be fine with such an option so long as it is configurable.
>
> 73, de Nate N0NB >>
>
> --
>
> "The optimist proclaims that we live in the best of all
> possible worlds.  The pessimist fears this is true."
>
> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
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[Elecraft] Just purchased a K3 and started the build

[Tim Tucker]

Hi all,

I just purchased K3/100 and started the build process last night.  I'm
taking and posting pictures along the way for others to see and also
hopefully to get some tips and discussion going with other K3 owners.  If
you're interested in this type of thing, I'm publishing the photos of my
progress here:

http://www.worldwidedx.com

My initial reaction to this kit is that it's really nice and very well
thought out.  So far, I'm having a lot of fun just putting it together!  Any
advice is appreciated.

Tim
AE6LX
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[Elecraft] K3 error during synthesizer calibration

[Tim Tucker]

All,

I just finished up the majority of the build and am attempting to do the
Synthesizer calibration.  It goes through the process and reports ERR VCO
5.  I've inspected the cables between the KREF and KSYN3 and also the
TCXO installation as suggested by the manual.  I can't find anything wrong.

The other weird thing is that the unit will never completely power down.
When you try to power off, the display clears but stays lit.  If you unplug
the power and plug it back in, the display lights up with no information
displayed.  I don't believe that it 't started doing this until I tried to
calibrate it.

I've got a call in to tech support but while I'm waiting for a call back,
any ideas?

Tim
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