[Elecraft] New KX3 field-test firmware -- improvements for PX3; misc.

2014-10-06 Thread Wayne Burdick
This is a bug-cleanup release, rev. 2.25, that will appeal to specific KX3 
users. Changes are listed below. 

This release also supports text display on the PX3 (requires PX3 rev. 1.12), 
and DUAL RX (dual watch) even with RX SHFT=8.0. Both have been extensively 
tested at this point.

If you're interested in trying the new field-test release right away, please 
email me (directly, rather than via a list reply). I'll get it out to you 
tomorrow. 

By the way: Thanks, everyone, for the ongoing help with new releases. We're 
trying wrap up KX3 work so we can spend some time on the K3's firmware task 
list.

Thanks,

Wayne
N6KR

* * *

MCU 2.25 / DSP 1.30, 10-5-2014

* PX3 NOW DISPLAYS VFO B PASSBAND CORRECTLY: The PX3 was showing the wrong VFO 
B filter bandwidth or passband location when using DATA modes or DUAL RX (dual 
watch). 

* DUAL RX DOES NOT FORCE OFS/B KNOB TO BE USED AS VFO B: The operator’s OFS/B 
knob assignment is no longer lost when DUAL RX is in effect.

* FAST-PLAY DISPLAY ERROR FIXED: With fast-play enabled (1-touch message play 
using BAND+/- and FREQ ENT.), a band change originating from a PC application 
no longer flashes “END” on VFO B.

* CW SPEED DISPLAY TIME INCREASED WHEN TEXT DECODE IS ON: In CW mode, speed is 
now displayed for 1.0 sec. In FSK-D and PSK-D modes, it's .5 sec. The time is 
shorter for DATA modes because character transmission rates are usually faster, 
and the operator might miss important text due to the speed display.

* PA BYPASS METERING FIXED: If the KXPA100 goes to bypass because of an error 
condition, the KX3 drops to 5 W. The RF meter is now  correctly set to low 
range.

* TEXT DECODE LOCKOUT FIX: Adjustment of NR, NB, NTCH, etc. no longer causes 
loss of CW/DATA text decode on the VFO B display.

* HOST COMMANDS “UP”, “DN”, and “DT” are now working with the PX3.

* * *

Other recent releases:

MCU 2.24 / DSP 1.30, 10-1-2014

* SUPPORT FOR PX3 TEXT DISPLAY: To enable text decode on the PX3, hold LABELS 
switch to switch to text-decode mode (requires PX3 rev. 1.12 or later). Text 
decode must also be enabled at the KX3.

MCU 2.23 / DSP 1.30, 9-24-2014

* DUAL RX NOW ALLOWED WITH RX SHFT=8.0. In this case, VFO A can be from -7 
below VFO B to +23 above it  (vs. +/- 15 for RX SHFT=NOR).



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Re: [Elecraft] [K2] How much AF volts at 1kHz to get full RF power using KSB2?

2014-10-06 Thread Jim Brown

On Mon,10/6/2014 1:56 PM, Don Wilhelm wrote:
You should find between 200 and 400 mV peak to peak (dependent on the 
particular speech patterns) from an electret microphone such as the 
Elecraft MH2.  That is 70 to 140 mV RMS.

That is sufficient to drive the SSB output to pull power.


I once owned a pair of K2/100s and used them for contesting. I found the 
audio chain rather gain-starved and with excessive low-frequency 
bandwidth, so I changed a few resistor and capacitor values to increase 
the gain and reduce the LF. I think I managed about 6 dB. I believe that 
I passed those mods along to you, Don. The changes allowed me to hit the 
Limiter a bit harder, increasing its compression ratio.


73, Jim K9YC
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[Elecraft] FS: KAT100/KPA100 in EC-2 enclosure

2014-10-06 Thread PHILIP GRAITCER
Get 100 watts out of your K2!

In excellent condition with cables and manual, KAT100 amplified, KPA100 antenna 
tuner installed in separate enclosure and built by me in December 2009 and used 
up until a few months ago. With this amplified/antenna tuner, it is a simple 
matter to run the K2 at QRP and 100 watt levels.

Selling because, it is surplus to my needs since I have a second K3.

As a kit, Elecraft sells this for $729.85 plus shipping. I am asking $500.00 
plus shipping.

I also have an MFJ259B antenna analyzer for sale, $160.00

Phil, W3HZZ
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Re: [Elecraft] Looking for a K3

2014-10-06 Thread Bruce Beford
Again? Really?

Tim must have the record for the most number of K3s bought and then sold,
over the last several years.

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[Elecraft] Looking for a K3

2014-10-06 Thread Tim Cook
Anyone have a K3 for sale, if so please send details to include serial number, 
options, etc. also best price shipped to zip 45324. Can pay by PayPal.
Thanks
Tim
NZ8J



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Re: [Elecraft] Split N/A

2014-10-06 Thread Joe Subich, W4TV


The problem isn't drivers or anything like that, it is attempting
to deal with application software that does not handle the K3's
unique interface.

For example, WSJTX 1.4 when controlling *any rig* via DXLab Suite's
CI-V Commander sets the frequency (VFO A), turns on split, then sets
the transmit frequency (VFO B).  In monitoring TCP commands between
the two applications, I don't even see an attempt to set the mode of
VFO A, much less VFO B - but that's moot because the software turns
on Split before even setting transmit frequency.

If the K3 were to force VFO B to the same frequency and mode as VFO A
when split were enabled (if VFO A is in DATA or on a different band
than VFO B) software like WSJT-X that apparently caters to the lowest
common denominator in rig control interfaces would not be able to send
the K3 off into the weeds.  Remember, software like this generally
does not have user programmable band change/frequency set macros - it
is not a matter of "user responsibility".  This is more a matter of
surviving software with limited sophistication when it comes to rig
control.

73,

   ... Joe, W4TV


On 2014-10-06 7:58 PM, Fred Jensen wrote:

Don't know if "bad drivers" is the right term, possibly "new drivers"
might be better.  I agree however that trying to fool proof can lead to
all sorts of problems.  Although I thought [in the early 80's] that this
cellular telephone business wouldn't catch on [heavy phone-in-a-bag] ...
I am now on my 9th phone, this one a Verizon Samsung Galaxy 5 [I also
told my wife that ATM's would be a loser for banks :-)].

The Galaxy 5 attempts to think for me in many places [spell check and
auto-complete are only two small examples], and, with 29 yr old
grandson's help, I'm slowly turning off the ones that I can.  I'm
totally capable to learn how to do something with it on my own. Likewise
with my KX1, K2, K3, KPA500, KAT500, and P3.

I'm not surprised how picky many have become, the technology we take for
granted today is light-years beyond what we used in the 50's and we're
used to pushing "popcorn" to nuke a bag to perfection [if it's correct
side down].  I *am* glad however that Elecraft monitors this list [and
likely others], and is very careful about implementing a suggestion from
what could be a customer-base of one.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2015 Cal QSO Party 3-4 Oct 2015
- www.cqp.org

On 10/3/2014 5:06 AM, david Moes wrote:

Im not sure I would like this at all.  sometimes I think that
fool-proofing a rig is the wrong way to go as it take the ownership away
from the operator to pay attention to what they are doing and panders to
the shall I say the bad drivers.


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Re: [Elecraft] Split N/A

2014-10-06 Thread Fred Jensen
Don't know if "bad drivers" is the right term, possibly "new drivers" 
might be better.  I agree however that trying to fool proof can lead to 
all sorts of problems.  Although I thought [in the early 80's] that this 
cellular telephone business wouldn't catch on [heavy phone-in-a-bag] ... 
I am now on my 9th phone, this one a Verizon Samsung Galaxy 5 [I also 
told my wife that ATM's would be a loser for banks :-)].


The Galaxy 5 attempts to think for me in many places [spell check and 
auto-complete are only two small examples], and, with 29 yr old 
grandson's help, I'm slowly turning off the ones that I can.  I'm 
totally capable to learn how to do something with it on my own. 
Likewise with my KX1, K2, K3, KPA500, KAT500, and P3.


I'm not surprised how picky many have become, the technology we take for 
granted today is light-years beyond what we used in the 50's and we're 
used to pushing "popcorn" to nuke a bag to perfection [if it's correct 
side down].  I *am* glad however that Elecraft monitors this list [and 
likely others], and is very careful about implementing a suggestion from 
what could be a customer-base of one.


73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2015 Cal QSO Party 3-4 Oct 2015
- www.cqp.org

On 10/3/2014 5:06 AM, david Moes wrote:

Im not sure I would like this at all.  sometimes I think that
fool-proofing a rig is the wrong way to go as it take the ownership away
from the operator to pay attention to what they are doing and panders to
the shall I say the bad drivers.


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Re: [Elecraft] [K2] How much AF volts at 1kHz to get full RF power using KSB2?

2014-10-06 Thread Don Wilhelm

Gareth,
You should find between 200 and 400 mV peak to peak (dependent on the 
particular speech patterns) from an electret microphone such as the 
Elecraft MH2.  That is 70 to 140 mV RMS.

That is sufficient to drive the SSB output to pull power.

73,
Don W3FPR

On 10/6/2014 3:57 PM, Gareth - M5KVK wrote:

I want to remove the Mic as a source of variability but I don’t know what
AF voltage should cause 100% of the set o/p power.




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[Elecraft] Elecraft SSB net results for 10/05/2014

2014-10-06 Thread Phil Shepard
Here is the net report for the Elecraft SSB net from October 5, 2014. Peter, 
ZL1PWD, checked in for the first time in quite awhile.  We had 29 participants.

Station NameQTH Rig S/N

K4GCJ   Gerry   NC  K3  1597
WB9JNZ  EricIL  K3  4017
K7BRR   BillAZ  K3  5545
WV5IDwayne  TX  K3  5287
W2RWA   DickNY  K3  2603
KC9LIF  KentIL  K2  6896
QRP
WO1IDickMA  K3  911
W8OVDaveTX  K3  3139
KF5IMA  Bruce   MS  K2  3575
K5LAD   Jim OK  K3  1068
W6NIA/m MattNM  KX3 6
W4RKS   Jim TX  K3  3618
W0CZKen ND  K3  457
W4DML   DougTN  KX3 2915QRP
WW4JF   JohnTN  KX3 159
W7QHD   KurtAZ  K2  1538
KE7HGE  Ken WA  KX3 4540
QRP
AB7CE   Roy MT  KX3 115 
QRP
ZL1PWD  Peter   NZ  K3  139
KD0HII  Brian   IA  K3  3672
KF5YBE/mLee TX  TS480HX
K4STN   BillGA  KX3 4330
N4WCQ   RickKY  K3  8160
WN8AJim MI  K3  3480
N6JWJohnCA  K3  936
KB0MM   BurtMN  Yaesu   
QRP
NC3ZGaryMD  KX3 6721
KD0MOA  JohnCO  KX3 3560
QRP
NS7PPhilOR  K3  1826


73,
Phil, NS7P
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Re: [Elecraft] [K2] How much AF volts at 1kHz to get full RF power using KSB2?

2014-10-06 Thread Gareth - M5KVK
I’m rapidly getting nowhere with this problem. I need to understand how the
overall circuit works and what I should expect to see on the ‘scope.

My understanding is that RF Power is basically under the control of a
feedback loop controlled by the VRFDET circuit on the RF board.

The front panel PWR OUT is simply an input to Control Board U8, which
generates V PWR via U8. V PWR sets the target level in the ALC block and
affects V ALC. V ALC goes to Q24 and controls the o/p level of the BFO,
which then flows through filters etc to the PA, where VREFDET is generated.

In CW mode, that’s all there is, and it works. Varying PWR OUT varies the
RF power generated. The problem comes in SSB mode.

With the KSB2 installed, and in CW mode, the BFO signal goes in and out of
the KSB2 via Q3. All OK. In SSB mode, the KSB2 has an additional ALC
circuit block that uses VRFDET, ALC THR and PWR CTRL to throttle the SSB
generated on the KSB2 which then goes back out via Q2. This doesn’t work.

In SSB mode, the AF mixes in the balanced modulator but changing PWR OUT
has no effect. If my understanding is correct, the problem would seem to
lie in one of two places: a) the ALC circuit block on the KSB2 or b) the AF
compressor circuit.

I want to remove the Mic as a source of variability but I don’t know what
AF voltage should cause 100% of the set o/p power.

73

Gareth - M5KVK

On 1 October 2014 22:10, Gareth - M5KVK  wrote:

> Thanks for the help Don.I really appreciate it.
> Apart from finding that R7 was not fitted (how many times had I looked at
> the board?), I can see nothing untoward. Fitting it made no difference.
>
> I note that these were the ones changed in the Rev E errata. Relevant?
> Mine is a Rev D board and (e.g.) R9 is 10k rather than 3.9k as per the Rev
> D manual.
>
> The receive audio is slightly down with OP1 but not a lot. Diodes are all
> the right way around and T2 appears to be OK, no shorts and buzzes through
> OK.
>
> I did see a suspicious poor solder joint with R69 on the RF board, but
> again it made no difference.
>
> On 1 October 2014 18:16, Don Wilhelm  wrote:
>
>>  Gareth,
>>
>> The PWR CTRL on the KSB2 does not do much at all, so what you are seeing
>> is about right.
>> The power control is done from the VRFDET feeding the base of Q1.  It
>> causes Q1 to conduct and alters the voltage to the base of Q2.  The SSB
>> signal is 'throttled' after the signal is generated and passed through the
>> OP1 filter.  The BFO injection should not change for SSB operation like it
>> does for CW mode.
>>
>> Check resistors R4 and R9 for proper values and good soldering.  Check
>> the orientation of D2.
>>
>> If you are still not getting adequate signal at D4, then you may have a
>> problem with T2 or a solder bridge on one of the capacitors in the filter
>> area that is dragging the signal down.
>> How does the OP1 filter behave in receive.  If the RX signal is
>> attenuated more than with the variable filter, that problem may be related
>> to your TX problem.
>>
>> The VRFDET signal level is a level determined by the actual power output
>> of the K2 - it comes from the wattmeter forward power detection in either
>> the KAT2 or the KPA100 - without either of those options, it comes from the
>> RF Detector D9 on the RF Board.
>>
>> 73,
>> Don W3FPR
>>
>>
>> On 10/1/2014 11:17 AM, Gareth - M5KVK wrote:
>>
>> Don, Yes, D4 seems to be OK
>>
>> I've done some further probing and I'm wondering if the problem lies in
>> the ALC circuit. Basically, the power doesn't vary as I change the POWER
>> control.
>>
>>  Scoping U2. There is data on pin 8, but only the second nibble changes.
>> ALC THR goes up as I change POWER, but PWR CTRL stays stuck at about 5.6V
>> regardless of where POWER is set or what AF there is.
>>
>>  What is the purpose of PWR CTRL? Should it be changing?
>>
>>  Gareth - M5KVK
>>
>> On 29 September 2014 21:45, Don Wilhelm  wrote:
>>
>>> Gareth,
>>>
>>> Is D4 mounted with the correct orientation. - the line on the silkscreen
>>> points to the cathode end.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>>
>>> On 9/29/2014 4:16 PM, Gareth - M5KVK wrote:
>>>
 Thanks, Don
 I'm getting more or less the same as you except for the RF out on U5
 pin 4.
 I'm seeing the BFO of about 400mV pp with no AF, and then going up to
 800mV
 pp when I whistle into the Mic.

 Doh!

 I thought I had the carrier balance right, but obviously not. Switching
 on
 the SSBA=BAL shows a bif signal on U5 pin 4. I've adjusted that down to
 almost zero on the 'scope, but I'm still not getting much RF out.
 73,


>>>
>>
>>
>
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[Elecraft] KPA500 band change problem

2014-10-06 Thread Mark
Hi

I run a Kenwood TS-2000, KAT 500 Tuner and KPA 500 amp.

In the last few months I have been having an intermittent issue with my
amp.  On some occasions when I have changed bands it will not follow the
band changes like the ATU does.  So if I am on say 14MHz and change to 7Mhz
the ATU changes antenna/band but the amp remains on 14Mhz.  Changing it
manually, changes the display on the amp to 7Mhz but the amp will not
operate on that band (or any other I subsequently change to).

Reinstalling the firmware (1.38) seems to fix the problem but every now and
then the same thing happens again without warning (although normally when I
am looking to work something I need the amp for quickly).

Has anyone else struck this and if so did you find a solution?

73

Mark ZL3AB
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[Elecraft] KX3 Mic/Phone Adapter Question

2014-10-06 Thread James Bennett
I've got a KX3 that so far has only been used on CW or data, and have been 
using fairly bulky Sony headphones with it. Those phones work fine, but aren't 
exactly something I want to use in a portable / car camping environment. 
Yesterday while at Fry's electronics I saw a lightweight headset with attached 
mic that looked like a "junior" version of the Yamaha CM500 that I use with my 
K3. It has a single, 4-connector TRRS plug.

Does anyone know of a supplier of an adapter that breaks out the mic and audio 
into two separate cables/plugs like the CM500 has?

Or. is there a lightweight "junior" version of the CM500 on the market - 
one that has two separate cables: mic and phones?

Thanks, Jim / W6JHB
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[Elecraft] FS K3/10

2014-10-06 Thread Frankie Hunt
For sale  K3/10 serial 16xx.   $1550 plus shipping.  Smoke free environment.
I purchased this rig new and it has seen minimal usage.  myc...@arrl.net

Frankie  K4TEN

 

Has the following options:


K3/10

K3 10W Xcvr. (Assembled)

$1799.95 


KBPF3

K3 Gen. Cov. RX Module

$169.95 


KFL3A-2.8_2.7sw

2.8 for 2.7 kHz swap

$129.95 


KFL3A-6K

K3 6 kHz, 8 pole filter

$139.95 


KXV3A

K3 RX Ant, IF Out & Xvrtr Intf.

$129.95 

$2369.75

 

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[Elecraft] HI RFI HI CUR above 12 Watts on K3 Screen, RX shuts down for a minute .

2014-10-06 Thread Hugh Valentine
Problem originated on 6M(affects all bands) when ATU was being used to Tweak 
SWR from 2.4 to 1.0:1. ATU constantly moved up and down tuning, never resting 
on 1.0:1Power output was intermittent(100W) would go to zero then back to 100 
as ATU was looking for match.  Then, HI SWR,  RFI scrolls across screen as no 
power is coming out of K3.   Affects Ant 1 and Ant 2 SO239s on back of chassis. 
 Affects with RX antenna unplugged.  Any Band, any Mode.  Either VFO A or B. 
Finally,  HI SWR, HI Cur, RFI scrolls across screen after power goes above 
12W.(Never shows ANY power on the LED screen, only one Bar each time I 
transmit. Uploaded new Firmware and reset K3. On all bands...with or without 
ATU(eventually uninstalled it) on any antenna or on Dummy Load,  Rig shows Zero 
Power output as I go from 0-12.5 W then at any power over 12 Watts, the RX 
makes a variable warbling noise and normal receive is bypassed.  After a few 
seconds, the RX may come back on. I just installed a K9AY RX system
  not too far from XMIT ant.  But have been using it all bands no problem for 2 
months. ATU always has difficulties matching low SWR on 160 and 6M. Any 
suggestions as to what is gong on?Anyone experience this before?  73ValN4RJ  


Fast, Secure, NetZero 4G Mobile Broadband. Try it.
http://www.netzero.net/?refcd=NZINTISP0512T4GOUT2
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Re: [Elecraft] Strange "Ticking" sound with K3/0 Mini to RemoteRigfor remotely controlling K3.

2014-10-06 Thread Igor Sokolov
Exactly. This is computer polling. Put as much ferrite  on the USB (serial 
port) cable as you can.


73, Igor UA9CDC

- Original Message - 
From: "K4ia via Elecraft" 

To: 
Cc: "Elecraft Reflector" 
Sent: Monday, October 06, 2014 4:19 AM
Subject: Re: [Elecraft] Strange "Ticking" sound with K3/0 Mini to 
RemoteRigfor remotely controlling K3.



USB or serial port polling?  Try a different adapter or one that uses an 
optoisolater


Craig Buck


On Oct 5, 2014, at 5:36 PM, "Brian F. Wruble"  wrote:

Hi All:

The symptom I am describing persists despite changing routers, internet
systems, and cities.  In a QSO this morning, the other parties reported a
ticking sound on my transmitted signal --- faint but noticeable --- and I
could also hear it in XMIT Monitor.  I was operating my remote gear as a
test --- in the same room as the K3, and on the same LAN.

I have now set myself up 110 miles away, and the sound persists.  I am 
able
to work others, get good signal reports, but I can hear the tick tick 
tick,

about 2 per second.

In testing, I find the sound is there even if I power down the gear ---  
the

radio and the control end.  It persists if I remove 12VDC from the K3/0
mini.  Also if I remove the wifi module from the RemoteRig control box.

If I remove power from the RemoteRig, it goes away.  With power to the 
RR,

the ticking goes away if I unplug the "TTL" line from the K3/0 mini.
Unplugging the other lines makes no difference, though it becomes fainter
if I unplug "Aux/Mic." It persists if I remove the ethernet cable
connecting the RemoteRig to my router.  It persists if I unplug the USB
line from the RemoteRig to my PC.

This symptom appeared after a good period of time when everything worked.
And all functionality is still there --- just this maddening tick tick 
tick

--- like something from Edgar Allan Poe.

All ideas gratefully accepted.

73 de Brian W3BW

*Brian F. Wruble, C.F.A.
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