Re: [Elecraft] KX3 headset recommendation

[paulb]

Interesting to see this thread..
the K2 and K3 owned here have bags of
audio transmit gain. This allows the heavy 
bass vowel sounds to be rolled off below about
300 hz. The KX3 seems to be slightly lacking in
TX audio; the not-so-great fix here has been to 
construct a very small outboard single transistor
mic amp. It is powered from a small 9 volt battery.

I have tried using the mic bias directly to drive the 
mic preamp but got into rf feedback troubles.

cheers 

Paul 
zl1ajy



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[Elecraft] K2UI for Mac

[Nick Garner]

Hello Everyone,
I decided to round out the K#UI line of Mac Apps with K2UI.  It works with
Piglet as well. I should have a windows version in a bit.

https://itunes.apple.com/us/app/k2ui/id662821836?mt=12

73,
Nick
N3WG
http://pignology.net
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[Elecraft] KX3 ATU

[Richard Thorpe]

When keying the KX3 microphone after switching bands the ATU indicator on the 
KX3 display flickers then stops.  This only happens with the initial transmit 
keying per band.  Is this normal?  Thank you.

K6CG/VE1
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Re: [Elecraft] KX3 headset recommendation

[Christian AK4VV]

You need the ACC2 breakout cable from Elecraft. The PTT switch from
Aircraft Spruce just plugs straight into that. You need to configure the
menu item to say you want the contact closure to enable PTT.

73,
Christian
AK4VV
On Jul 12, 2013 3:48 AM, "KF5TEU"  wrote:

> I ordered the aircraftsp
> What headset/mic/adapter were you using ?
> Thanks for the info.ruce PTT but I want to be sure I understand...you
> attached this PTT to the ACC2 port on the KX3 and youyou had a
> microphone/headset pluged into where exactly, mic in mic, headset in Phones
> or what ?
> Like others I'm looking for a wireless solution which may just be this PTT
> plus a musician style headset with mic and a pass-through wireless
> receiver/tx on the back of the KX3 that has a built in VOX to allow it to
> send and receive based on input either direction. No models yet but
> looking.
>
>
>
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> View this message in context:
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Re: [Elecraft] KX3 headset recommendation

[Richard Neese]

On 7/13/2013 10:28 AM, Christian AK4VV wrote:

You need the ACC2 breakout cable from Elecraft. The PTT switch from
Aircraft Spruce just plugs straight into that. You need to configure the
menu item to say you want the contact closure to enable PTT.
you dont need the breakout cable to put a foot/hand ptt switch. you need 
a mono 2.5 mm headphone jack. and you need to fo into the menu and put 
the acc2 port into ptt_low.


but if you plan to use a ptt and the amp then you need the breakout cable

*KX3-PCKT Accessory Cable Set*

   The KX3-PCKT cable set interfaces between the Elecraft KX3 and
   personal computers, and provides convenient connection to an
   external foot switch and RF power amplifier./KX3-PCKT Instructions/
   


   19.95

is well woth the money . yoou get all the needed cabl for the kx3.


73,
Christian
AK4VV
On Jul 12, 2013 3:48 AM, "KF5TEU"  wrote:


I ordered the aircraftsp
What headset/mic/adapter were you using ?
Thanks for the info.ruce PTT but I want to be sure I understand...you
attached this PTT to the ACC2 port on the KX3 and youyou had a
microphone/headset pluged into where exactly, mic in mic, headset in Phones
or what ?
Like others I'm looking for a wireless solution which may just be this PTT
plus a musician style headset with mic and a pass-through wireless
receiver/tx on the back of the KX3 that has a built in VOX to allow it to
send and receive based on input either direction. No models yet but
looking.



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[Elecraft] K3 and wireless intruder alarm

[David Andrews]

I'm thinking of installing a wireless home security system running on 868
MHz (FM). I run up to 100 watts through the built-in ATU, into an Elecraft
balun, open wire feeder and 88ft dipole at 30ft. Has anyone any experience
they can share please? Am I likely to trigger the alarm?

 

Thanks

 

David G4CWB

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Re: [Elecraft] Off Topic -- Yagi Antenna SWR measurement ?

[Tom H Childers]

All,

There is an antenna reflector that would be more appropriate for the
is post.  Try it out.

Welcome to the anten...@mailman.qth.net mailing list! Antennas is a
mailing list (reflector) devoted to discussing, comparing,
evaluating,
designing, and constructing antennas (aerials) of all types,
especially for amateur radio, SWL, scanning, and monitoring.

 * Design and Evaluation
 * Modeling, Optimizing
 * Analysis Software
 * MF, HF, VHF, UHF, SHF
 * Construction Projects
 * Anything Else Antenna Related


This list (reflector) is devoted entirely to the topic of antennas.
Anything related to antennas operation is appropriate.

On Fri, 12 Jul 2013 07:50:43 -0700, Phil Hystad 
wrote:

73,
Tom
Amateur Radio Operator N5GE
Licensed since 1976
ARRL Lifetime Member
QCWA Lifetime Member

>I know this is OT but there are so many knowledgable people on this reflector
>that I can't pass it up.
>
>A friend has a Yagi antenna (HF tri-bander) that he wants to measure the SWR
>before he raises the antenna up on the tower.
>
>Question:  is this accurate or does the proximity of ground (maybe two feet 
>high)
>so strongly affect the SWR reading that the measurement is not accurate.
>
>73, phil, K7PEH
>
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Re: [Elecraft] K3 and wireless intruder alarm

[David Christ]

Both I and K0CF have wireless home security systems that I think run on 900 MHz 
or so.  We both run in excess of 500 watts to K4KIO hexagonal beams at 35 to 40 
feet.  Our towers are bracket to the house.  Neither of us have experienced any 
problems.

David K0LUM

On Jul 13, 2013, at 12:25 PM, David Andrews wrote:

> I'm thinking of installing a wireless home security system running on 868
> MHz (FM). I run up to 100 watts through the built-in ATU, into an Elecraft
> balun, open wire feeder and 88ft dipole at 30ft. Has anyone any experience
> they can share please? Am I likely to trigger the alarm?
> 
> 
> 
> Thanks
> 
> 
> 
> David G4CWB
> 
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Re: [Elecraft] K3 and wireless intruder alarm

[Jim Brown]

On 7/13/2013 10:25 AM, David Andrews wrote:

Am I likely to trigger the alarm?


Alarm systems in general, at least in North America, are notoriously bad 
for RF susceptibility. The coupling mechanisms are primarily poorly 
filtered signal wiring, Pin One Problems, poor circuit layout, and poor 
shielding.  To the extent that it has less external wiring, a wireless 
system MIGHT be less problematic, but those other mechanisms are still 
there.  Suppression methods are addressed in http://k9yc.com/RFI-Ham.pdf


73, Jim K9YC
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Re: [Elecraft] K3 and wireless intruder alarm

[David Christ]

Don't know what his system will be like, but the system I have as absolutely no 
wiring between any of the components.  Everything is wireless.  Experience of 
two of us has been no problems while running high power levels using good 
equipment into well designed antennas.

These data points only involve one brand of security system however.  

David K0LUM
On Jul 13, 2013, at 12:37 PM, Jim Brown wrote:

> On 7/13/2013 10:25 AM, David Andrews wrote:
>> Am I likely to trigger the alarm?
> 
> Alarm systems in general, at least in North America, are notoriously bad for 
> RF susceptibility. The coupling mechanisms are primarily poorly filtered 
> signal wiring, Pin One Problems, poor circuit layout, and poor shielding.  To 
> the extent that it has less external wiring, a wireless system MIGHT be less 
> problematic, but those other mechanisms are still there.  Suppression methods 
> are addressed in http://k9yc.com/RFI-Ham.pdf
> 
> 73, Jim K9YC
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Re: [Elecraft] K3 and wireless intruder alarm

[Jim Bennett]

David,

I suspect that you'll probably be OK going wireless, especially running only 
100 watts. Our security system is about 22 years old and is a WIRED system, 
meaning a lot of wires (antennas!) running through the walls of our two story 
home. With my K3 running barefoot at 100 watts, I experienced NO interference 
to the system when using either my ground mounted Hustler 5BTV or my 88-foot 
long doublet at 40 feet. However, when I purchased the KPA500 and ran 500+ 
watts to the vertical, it was a different story. Had lots of interference to 
the security system and a few other in-home devices. I wound up placing several 
ferrite beads on each end of every wire going into the control box of the 
security system  - a couple at the box, and a couple more at the "operator 
panels" on the doors. Seemed to resolve the problem. With your wireless system, 
you "shouldn't" have those problems at 100 watts. If you get an amp, all bets 
are off!!!

73 & GL, Jim / W6JHB


On   Saturday, Jul 13, 2013, at  Saturday, 10:25 AM, David Andrews wrote:

> I'm thinking of installing a wireless home security system running on 868
> MHz (FM). I run up to 100 watts through the built-in ATU, into an Elecraft
> balun, open wire feeder and 88ft dipole at 30ft. Has anyone any experience
> they can share please? Am I likely to trigger the alarm?
> 
> 
> 
> Thanks
> 
> 
> 
> David G4CWB
> 
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Re: [Elecraft] KPA-500 in Contest Conditions

[iw1ayd - Salvatore Irato]

Hi all.
The KPA is a good performer. Even when it get at 70C temperature, it 
doesn't crank down the power.
It's noisy that's right compared to no noise there is some when it is 
hot. But with my previous experience with a 1K-FA by SPE it is much 
silent than that. Power is comparable in between the two is comparable, 
as the SPE have the specification for RTTY at the same 500W as the 
KPA500. But the SPE loose power over time, the KPA500 instead doesn't 
lose any power.
It maybe that the noise of the KPA500 is much better as Elecraft use a 
big fan, that when scream have a lower pitched tone the the SPE. The SPE 
use 8 smallest fan, it have inside much more modules, 3 instead of one, 
of the KPA500.
That's why I switched over the two to the Elecraft one amp and I am not 
regretting it.


Activity here is substantially only in RTYY: DXing doesn't produce any 
remarkable noise; Contesting RTTY make it sounding for sure. But way 
better than my older one SPE. You could survive without headphone with 
the KPA500.
I have engaged several times the overtemp protection in the SPE in over 
4 years of use. I tried to engage the same protection on the KPA500, 
RTTY Contest CQing cycle, but after fifteen minutes at 70C I stopped the 
test. That's not a scientific and repeatable test, maybe, but it's quite 
enough for me.


I don't have a great station here at home but sometime RTTY RUN times 
are really interesting as it was on the latest DLDX and before on one of 
the 75 baud contest.


Take care also that the late season was 28C to 35C, it's pretty hot here 
down with relevant humidity. I am speaking of almost one month since the 
switch of the PAs.


For serious RTTY Contesting at legal power limit I would use a vacuum 
tube PA.


Not to mention one sure thing, the way as the KPA500 is engineered leave 
all the space for a great serviceability. It's not the same for several 
other SS PAs.


73 de iw1ayd Salvo
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Re: [Elecraft] K3 and wireless intruder alarm

[Reginald J Mackey SR]

We have ADT wireless and no problems

Reggie k6xr
Amateur radio 58 years
DXCC, RCC, WAC

Sent from my iPad

On Jul 13, 2013, at 10:37 AM, Jim Brown  wrote:

> On 7/13/2013 10:25 AM, David Andrews wrote:
>> Am I likely to trigger the alarm?
> 
> Alarm systems in general, at least in North America, are notoriously bad for 
> RF susceptibility. The coupling mechanisms are primarily poorly filtered 
> signal wiring, Pin One Problems, poor circuit layout, and poor shielding.  To 
> the extent that it has less external wiring, a wireless system MIGHT be less 
> problematic, but those other mechanisms are still there.  Suppression methods 
> are addressed in http://k9yc.com/RFI-Ham.pdf
> 
> 73, Jim K9YC
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Re: [Elecraft] K3 and wireless intruder alarm

[Keith Heimbold]

I have Protection 1 and noticed an increase in noise level once the system was 
installed especially on 6m. I moved my antenna from above the house to my tower 
that is away from the house and the noise reduced significantly. Other bands 
did not seem as affected. The antenna was above my house and not far from other 
homes and residences so this might be coincidental to my neighbor installing a 
new plasma or something like that too.

Good luck!

Keith 
AK6ZZ

Sent from my iPhone please excuse typos

On Jul 13, 2013, at 11:01 AM, "Reginald J Mackey SR"  wrote:

> We have ADT wireless and no problems
> 
> Reggie k6xr
> Amateur radio 58 years
> DXCC, RCC, WAC
> 
> Sent from my iPad
> 
> On Jul 13, 2013, at 10:37 AM, Jim Brown  wrote:
> 
>> On 7/13/2013 10:25 AM, David Andrews wrote:
>>> Am I likely to trigger the alarm?
>> 
>> Alarm systems in general, at least in North America, are notoriously bad for 
>> RF susceptibility. The coupling mechanisms are primarily poorly filtered 
>> signal wiring, Pin One Problems, poor circuit layout, and poor shielding.  
>> To the extent that it has less external wiring, a wireless system MIGHT be 
>> less problematic, but those other mechanisms are still there.  Suppression 
>> methods are addressed in http://k9yc.com/RFI-Ham.pdf
>> 
>> 73, Jim K9YC
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Re: [Elecraft] K3 and wireless intruder alarm

[Steve Glickstein]

I've used a wireless home alarm system for 13 years with hf/vhf/uhf 
antennas in the attic of a 3 story townhouse.  The documentation doesn't 
include specs. The antenna on the master unit is approximately 13 cm.  
Depending on whether that's a quarter wave or full wave, it's in the 
bottom or top of the microwaves.  Using my K3 at 100w all bands doesn't 
affect the system.  Running 50w on 70cm does affect my 5.8 GHz wireless 
telephone system.  I'm guessing that it's crunching the receiver front 
end or getting rfi into the master's control circuitry.


73, Steve W4FMD


On 7/13/2013 1:25 PM, David Andrews wrote:

I'm thinking of installing a wireless home security system running on 868
MHz (FM). I run up to 100 watts through the built-in ATU, into an Elecraft
balun, open wire feeder and 88ft dipole at 30ft. Has anyone any experience
they can share please? Am I likely to trigger the alarm?

  


Thanks

  


David G4CWB

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.



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Re: [Elecraft] Trade off PR6 vs PR6-10 pre-amp

[John Buck]

Lou, I have received no other replies to my message.  Additional comments would 
be welcome.

In attempting to answer my own question, I suspect that the antenna bandwidth 
on 6M would limit out of band issues.  The slightly higher gain of the PR6-10 
with the same noise figure then might be an advantage by helping overcome cable 
loss.  At least as long as strong signals are not overloading the front end.

I will probably not switch.  I presently have a good antenna on 24 and 28 MHz 
and do not really feel the need for more gain there.  Perhaps if I did not have 
the trusted PR6 I might purchase the PR6-10 instead.

73, John Kh7t

Lou,  wrote 7/12/2913:

John, did anyone reply to your questions? Have you made a decision? I am also 
wondering if making making the switch will compromise 6M performance.

73,

Lou, W0FK


KH7T wrote

I have the PR6 mounted on the K3.  Did successful JT65 6M moon bounce
with 11 element antenna,1000 watts, 110 foot BuryFlex coax, and
appropriate switching.  So this setup worked.

I note that the specification for the PR6-10 has about 2dB more gain
than the PR6.  The MDS and dynamic range specs are the same.

Would the 6 meter performance with the K3 using the PR6-10 be better or
worse than the PR6 because of:

1. Wider pass band?  More opportunity for out of band noise?

2. More gain?  Impact on overall dynamic range and noise figure?

My real question is should I sell my PR6 and get a PR6-10?  I do not
want to lose anything on 6 meters but perhaps could stand some
improvement on 10.

Aloha,
John KH7T, Unrepentant Engineer



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Re: [Elecraft] K3 and wireless intruder alarm

[Jim - KE8G]

My alarm system uses a combination of wires, for the doors, and wireless for 
all windows and motion detectors.  I usually run the K3 with the KPA500 at 
around 450-500 watts and have no problems whatsoever!

73 de Jim - KE8G


 David Christ  wrote: 
> Both I and K0CF have wireless home security systems that I think run on 900 
> MHz or so.  We both run in excess of 500 watts to K4KIO hexagonal beams at 35 
> to 40 feet.  Our towers are bracket to the house.  Neither of us have 
> experienced any problems.
> 
> David K0LUM
> 
> On Jul 13, 2013, at 12:25 PM, David Andrews wrote:
> 
> > I'm thinking of installing a wireless home security system running on 868
> > MHz (FM). I run up to 100 watts through the built-in ATU, into an Elecraft
> > balun, open wire feeder and 88ft dipole at 30ft. Has anyone any experience
> > they can share please? Am I likely to trigger the alarm?
> > 
> > 
> > 
> > Thanks
> > 
> > 
> > 
> > David G4CWB
> > 
> > __
> > Elecraft mailing list
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[Elecraft] KX3 Mic gain ?

[F5vjc]

Well, I don't whisper but I hate to have to shout into a mic to provide
adequate drive. I'm well used to close talking a headset microphone,  I use
the CM500 all the time on my K3 and there is loads of mic gain in reserve.
I have the latest firmware 1.50 in the KX3 and I still find the mic gain is
maxed out to give (almost) the recommended ALC action. What is your ALC
showing? I have tried mic bias On and OFF with no apparent difference. I
set the compression as advised. It sounds fine but I feel there is not
enough mic gain.This is the same, as I said, with another headset mic. When
I have time I will try my CM500 on the KX3 to see what that does.

Anyone else seeing lack of audio drive on their KX3?

73, Denis F5VJC
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[Elecraft] ERR FW2

[aa4nc]

Operating the IARU contest and a previously solid K3 would cease putting out 
power, although it remained in transmit. After an hour of doing this 
intermittently, I started getting an ERR FW2. Power off/on would clear this. 
After another hour, I received a prompt on the front panel that mentioned 
something to the effect of "Use  K3 utlity program". After it locked up with 
the ERR FW2, I downloaded the latest utility and all new software - MCU 04.67, 
FPF 1.15, DSP1 2.81, DSP2 2.81. 


It worked for an hour and I started receiving the ERR FW2 again. 


Any ideas??

73/TNX,

Will AA4NC 
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Re: [Elecraft] KX3 Mic gain ?

[Richard Neese]

Hold down the push down the keyer/mic/pwr knob  to where it saws swr/rf 
and turn it up and down till its at the mic gain level you need.

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Re: [Elecraft] ERR FW2

[Ron D'Eau Claire]

Per the Owner's manual the next step after reinstalling firmware is to
reinitialize the parameters and reload your configuration file (pg 66 of the
manual).

73, Ron AC7AC

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of aa...@aol.com
Sent: Saturday, July 13, 2013 1:07 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] ERR FW2

Operating the IARU contest and a previously solid K3 would cease putting out
power, although it remained in transmit. After an hour of doing this
intermittently, I started getting an ERR FW2. Power off/on would clear this.
After another hour, I received a prompt on the front panel that mentioned
something to the effect of "Use  K3 utlity program". After it locked up with
the ERR FW2, I downloaded the latest utility and all new software - MCU
04.67, FPF 1.15, DSP1 2.81, DSP2 2.81. 


It worked for an hour and I started receiving the ERR FW2 again. 


Any ideas??

73/TNX,

Will AA4NC 
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Re: [Elecraft] Trade off PR6 vs PR6-10 pre-amp

[Wayne Burdick]

John Buck  wrote:

> 
> In attempting to answer my own question, I suspect that the antenna bandwidth 
> on 6M would limit out of band issues.  

That, plus the K3's multi-section 6-meter low-pass filter (assuming you're 
connecting the PR6-10 between RX ANT IN and OUT).


> The slightly higher gain of the PR6-10 with the same noise figure then might 
> be an advantage by helping overcome cable loss.  At least as long as strong 
> signals are not overloading the front end.

Unlikely; both the PR6 and 6-10 are very high-intercept amplifiers.


> I will probably not switch.  I presently have a good antenna on 24 and 28 MHz 
> and do not really feel the need for more gain there.  

That is probably the case for most K3 owners. We had some requests for 10/12 
meter coverage and realized we could create a PR6-10 with a few circuit 
changes, but the rig's sensitivity on these bands is adequate for the vast 
majority of operators.

* * *

Earlier, KH7T wrote:

> 
> Would the 6 meter performance with the K3 using the PR6-10 be better or
> worse than the PR6 because of:
> 
> 1. Wider pass band?  More opportunity for out of band noise?
> 
> 2. More gain?  Impact on overall dynamic range and noise figure?

The differences in specs will be insignificant in nearly all cases.


> My real question is should I sell my PR6 and get a PR6-10? 

Only if you need to hear butterfly wings flapping 10,000 miles away on 10 and 
12 meters.

73,
Wayne
N6KR



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Re: [Elecraft] K2/100 Locks Up

[Don Wilhelm]

Jim,

I can't point to any particular component, but first check to see if you 
have an RF-in-the-shack problem
Transmit into a dummy load.  If it does not fail, then look carefully at 
your antenna system.


Assuming it fails with the dummy load as well as the antenna, then my 
best guess is that the problem in somewhere in the KPA100 T/R switch area.


73,
Don W3FPR

On 7/13/2013 12:07 AM, Jim Campbell wrote:


For about a year I have been using my K2 in digital modes. For about 
the first six months I used JT65 and then switched to JT9. For North 
America I usually use 10 watts and for the rest of the world I use 20 
watts. In both modes the transmitter is on continuously for one minute 
followed by a minute off then another minute on, etc.


This has worked well for me especially considering that I have a low 
88-ft dipole fed with ladder line, usually described as a 
"cloud-warmer." Using JT65 I accomplished WAS and eWAS as well as 50 
countries and 6 continents confirmed. (Being near the peak of the 
solar cycle probably helped.)


My problem is that if I am running 10 watts and hear a United Arab 
Emirates station calling CQ (as I did this afternoon) and I crank the 
power up to 20 watts the K2 locks up. And no, this isn't done while 
transmitting. By locks up I mean that the only button-press that works 
is power-off. When I power on everything is back to normal.


The K2 is number 2268 and I believe that all updates have been 
applied. The 100 watt amplifier was added later in the top of the K2. 
I am using a KAT100 in its own case just below the K2.


Any suggestions will be much appreciated.

73, Jim - W4BQP
Licensed in 1953

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Re: [Elecraft] KPA-500 in Contest Conditions

[Robert G Strickland]

I can add a few cents to this one. I've used the KPA500 in the usual big 
and in some of the small contests. It works transparently. When running 
stations on cw, the temp tends to rise to the mid-to-high 30's C. While 
I have no doubt that the temp sensitive fan would speed up to meet the 
challenge, I always increase the base fan speed when I know the temp 
will be going up, usually to the #4 speed. I believe in prevention 
rather than wait for the cure. The fan is loud at #5/#6 speeds. However, 
I'm always under the headphones, so I don't hear it at all. The only way 
to reduce fan noise would be to use a bigger fan, and that wouldn't be 
consistent with the small form factor for the amp. In all, it's a nifty 
500w amp that I can live with for the duration. And, needless to say, 
it's backed up by Elecraft and this list. IMHO, these last two factors 
place it head and shoulders above the rest.


...robert

On 7/13/2013 17:59, iw1ayd - Salvatore Irato wrote:

Hi all.
The KPA is a good performer. Even when it get at 70C temperature, it
doesn't crank down the power.
It's noisy that's right compared to no noise there is some when it is
hot. But with my previous experience with a 1K-FA by SPE it is much
silent than that. Power is comparable in between the two is comparable,
as the SPE have the specification for RTTY at the same 500W as the
KPA500. But the SPE loose power over time, the KPA500 instead doesn't
lose any power.
It maybe that the noise of the KPA500 is much better as Elecraft use a
big fan, that when scream have a lower pitched tone the the SPE. The SPE
use 8 smallest fan, it have inside much more modules, 3 instead of one,
of the KPA500.
That's why I switched over the two to the Elecraft one amp and I am not
regretting it.

Activity here is substantially only in RTYY: DXing doesn't produce any
remarkable noise; Contesting RTTY make it sounding for sure. But way
better than my older one SPE. You could survive without headphone with
the KPA500.
I have engaged several times the overtemp protection in the SPE in over
4 years of use. I tried to engage the same protection on the KPA500,
RTTY Contest CQing cycle, but after fifteen minutes at 70C I stopped the
test. That's not a scientific and repeatable test, maybe, but it's quite
enough for me.

I don't have a great station here at home but sometime RTTY RUN times
are really interesting as it was on the latest DLDX and before on one of
the 75 baud contest.

Take care also that the late season was 28C to 35C, it's pretty hot here
down with relevant humidity. I am speaking of almost one month since the
switch of the PAs.

For serious RTTY Contesting at legal power limit I would use a vacuum
tube PA.

Not to mention one sure thing, the way as the KPA500 is engineered leave
all the space for a great serviceability. It's not the same for several
other SS PAs.

 73 de iw1ayd Salvo
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--
Robert G Strickland, PhD ABPH - KE2WY
rc...@verizon.net.usa
Syracuse, New York, USA
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Re: [Elecraft] Trade off PR6 vs PR6-10 pre-amp

[Mike Reublin]

That is going to greatly benefit us Floridians. Those wingbeats are what starts 
hurricanes, you know!

73, Mike NF4L

> 
> Only if you need to hear butterfly wings flapping 10,000 miles away on 10 and 
> 12 meters.
> 
> 73,
> Wayne
> N6KR
> 
> 
> 
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[Elecraft] [K2] N1MM Logger with KPA100

[K1FFX]

N1MM can not establish connection with K2/100.  My PC has a real hardware COM
port.  I ran the Hyperterminal validation procedure on page 61 of the KPA100
manual.  Test 1 successfully transmitted a frequency string from the K2 to
Hyperterminal.  However, test 2 fails; the K2 is not responding to commands
(like SW01; as suggested in the KPA100 manual).  I tried both 1 and 2 stop
bits.

Any suggestions would be much appreciated.

- Bruce K1FFX




-
Bruce Rosen
K1FFX
K2/100 6982 KSB2 KAT100-1

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Re: [Elecraft] KX3 Mic gain ?

[paulb]

 Interested in this thread..
 the KX-3 seems a tad low on TX audio gain.

 I use the same mic/headsets on my K2 and K3 with
 stacks of audio. 
 
 Temp fix has been making an audio preamp 
 powered from small battery

 Tried using the +3.5 volt mic-bias supply but 
 got into all sorts of RF feedback problems. Didn't 
 pursue this, probably could be sorted out. 
 

  cheers

  Paul b
  zl1ajy



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Re: [Elecraft] KX3 Mic gain ?

[Richard Neese]

what version of the firmware are you running ?

you might try updating to this firmware

ftp://ftp.elecraft.com/KX3/firmware/beta


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Re: [Elecraft] KX3 Mic gain ?

[John_N1JM]

KX3 needs a mic with a lot of gain such as the CM500 and other electret mics.
My Heil headset with an HC-5 element won't cut it. Most dynamic mics will
not either.


Deni F5VJC wrote
> Well, I don't whisper but I hate to have to shout into a mic to provide
> adequate drive. I'm well used to close talking a headset microphone,  I
> use
> the CM500 all the time on my K3 and there is loads of mic gain in reserve.
> I have the latest firmware 1.50 in the KX3 and I still find the mic gain
> is
> maxed out to give (almost) the recommended ALC action. What is your ALC
> showing? I have tried mic bias On and OFF with no apparent difference. I
> set the compression as advised. It sounds fine but I feel there is not
> enough mic gain.This is the same, as I said, with another headset mic.
> When
> I have time I will try my CM500 on the KX3 to see what that does.
> 
> Anyone else seeing lack of audio drive on their KX3?
> 
> 73, Denis F5VJC
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-
73, John N1JM
K3 #5986
P3 #1752
KPA500 #596
KAT500 #575
KX3 #926
XG3
XG1

sent from my MacBook Pro
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Re: [Elecraft] KX3 Mic gain ?

[Geoffrey Downs]

Can't get enough drive using a Heil HC4 (dynamic) mic which has relatively 
low output but no problems with a Heil IC (electret) which has higher 
output.


73

Geoff
G3UCK

-Original Message- 
From: F5vjc

Sent: Saturday, July 13, 2013 8:58 PM
To: Elecraft Reflector
Subject: [Elecraft] KX3 Mic gain ?


Anyone else seeing lack of audio drive on their KX3?

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Re: [Elecraft] [K2] N1MM Logger with KPA100

[K1FFX]

Followup with some additional info: I inserted a breakout box (yes ... I
still have one!) to verify that my cable is OK ... and it is.  The PC's TXD
signal (pin 2) is showing up on the K2 end of the cable.  One other piece of
info: the cable is actually a Y-cable ... I built the KAT100 this past March
and it is on-line.

Thanks -

Bruce K1FFX




-
Bruce Rosen
K1FFX
K2/100 6982 KSB2 KAT100-1

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Re: [Elecraft] [K2] N1MM Logger with KPA100

[Don Wilhelm]

Bruce,

The KAT100 cable does not use the RXD, TXD and Signal Ground RS-232 
signal lines, so unless your cable has a fault (a short between 
conductors at the K2 end) the KAT100 connection is not to blame.


Both the TXD and RXD signals are used when attempting the Hyperterminal 
Test 1, so I would figure that the KPA100 RS-232 communications is working.


Make certain that the COM port is set to 4800 baud.  Try another 
computer if possible.


73,
Don W3FPR

On 7/13/2013 7:28 PM, K1FFX wrote:

Followup with some additional info: I inserted a breakout box (yes ... I
still have one!) to verify that my cable is OK ... and it is.  The PC's TXD
signal (pin 2) is showing up on the K2 end of the cable.  One other piece of
info: the cable is actually a Y-cable ... I built the KAT100 this past March
and it is on-line.

Thanks -

Bruce K1FFX




-
Bruce Rosen
K1FFX
K2/100 6982 KSB2 KAT100-1

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Re: [Elecraft] Trade off PR6 vs PR6-10 pre-amp

[Oliver Dröse]

Am 13.07.2013 21:09, schrieb John Buck:


The slightly higher gain of the PR6-10 with the same noise figure
then might be an advantage by helping overcome cable loss.


How should that work if the preamp is mounted at the K3 between RXANT in 
& out? It's after the cable then, isn't it? ;-) If you want to overcome 
cable loss buy a mast-mounted preamp.


73, Olli - DH8BQA

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Re: [Elecraft] Trade off PR6 vs PR6-10 pre-amp

[Don Wilhelm]

Olli,

I agree if the frequency is higher than 6 meters, but at 50 MHz and 
down, the cable loss does not appreciable degrade the noise figure 
(unless the feedline is exceptionally long).  That does not equate to 
those frequencies above the 50 MHz band.


The real answer depends on your particular situation (antenna gain and 
feedline loss).


73,
Don W3FPR

On 7/13/2013 8:03 PM, Oliver Dröse wrote:


Am 13.07.2013 21:09, schrieb John Buck:


The slightly higher gain of the PR6-10 with the same noise figure
then might be an advantage by helping overcome cable loss.


How should that work if the preamp is mounted at the K3 between RXANT 
in & out? It's after the cable then, isn't it? ;-) If you want to 
overcome cable loss buy a mast-mounted preamp.




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Re: [Elecraft] [K2] N1MM Logger with KPA100

[K1FFX]

Thanks, Don.  I went and tried it with my previous PC and it worked fine. 
So, I went back to the
KPA100 manual to look at how the pinouts were specified.  The manual
recommended looping CTS to
RTS on the PC side, which I did when I first built the KPA100 and it worked
fine with the PC that was current at that time.  But not with new PC!  I
pulled the jumper out and it now works fine with N1MM logger on the new PC.

So, KPA100 serial cable builders ... keep an eye out for this one ... that
jumper may disable K2 to PC communications.

Thanks again, Don.

- Bruce K1FFX




-
Bruce Rosen
K1FFX
K2/100 6982 KSB2 KAT100-1

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Re: [Elecraft] Trade off PR6 vs PR6-10 pre-amp

[Joe Subich, W4TV]

Don,

> I agree if the frequency is higher than 6 meters, but at 50 MHz and
> down, the cable loss does not appreciable degrade the noise figure
> (unless the feedline is exceptionally long).

Cable loss *always* degrades noise figure because it increases the
system noise figure on a dB for dB basis just like *any* attenuator
present before the first amplifier.  The question is whether that
increased noise figure is significant in the upper HF (20 - 30 MHz)
range ... and I would argue "it can be".

ITU/CCIR studies show man made noise levels between 15 and 20 dB
higher, on average, than thermal noise in that range - meaning
background noise will run from -127 to -132 dBm in 500 Hz or -120 to
-125 dBm in 2.4KHz.  Sherwood measured the K3's MDS at -130 dBm
(presumably at 400 Hz) with preamp off which equates to a noise
figure of 17 dB.  3dB of feedline loss (200 feet of "RG8X" - not
"exceptionally long") ahead of that would directly impact performance.

Even with the K3's stock internal preamp (NF= 7.5 dB, gain 12 dB),
3 dB added to the 9.5 dB system noise figure (MDS= -138 dBm @ 500 Hz)
could reduce system sensitivity to a point that it was insufficient
in an exceptionally quiet location.

73,

   ... Joe, W4TV


On 7/13/2013 8:14 PM, Don Wilhelm wrote:

Olli,

I agree if the frequency is higher than 6 meters, but at 50 MHz and
down, the cable loss does not appreciable degrade the noise figure
(unless the feedline is exceptionally long).  That does not equate to
those frequencies above the 50 MHz band.

The real answer depends on your particular situation (antenna gain and
feedline loss).

73,
Don W3FPR

On 7/13/2013 8:03 PM, Oliver Dröse wrote:


Am 13.07.2013 21:09, schrieb John Buck:


The slightly higher gain of the PR6-10 with the same noise figure
then might be an advantage by helping overcome cable loss.


How should that work if the preamp is mounted at the K3 between RXANT
in & out? It's after the cable then, isn't it? ;-) If you want to
overcome cable loss buy a mast-mounted preamp.



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[Elecraft] [K1] 2 band for 17 & 12M

[Curt]

Last year I bought a two-band module for 20 & 17, then used component values 
found on this reflector to build it for 12 & 10M.

It works very well, except power output on 10M was only about 1.5W.  There were 
mods others had made to the RF board
to improve that output, but I didn't make those changes.   Of course 1W is 
pretty adequate for 10M DX.  And, looks like the
cycle is on the downward slide anyway.

73, Curt KB5JO
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Re: [Elecraft] KX3 headset recommendation

[KF5TEU]

O.K.
I have the KPA100 ordered and the 500 hust got here so I will need the cable 
and I have it, came with my order as I addedvit in.
I have the Heil headset as well for base use.
So the PTT switch plugs into the ACC2 cable, that into ACC2 jack.
Where are you using the mono 2.5mm headphone mono jack ?
I have stereo headphones plugged into Phones.

What are using for a mic, the little condenser type plugged directly into the 
Nic hack or a mic on the headsetvor what ?
When menu is set to PTT kow , VOX isvoff then whenvyou push PTT does the mic 
become open for TX  that iplugged in to Mic ?
This means it has to be a buttonless nic ( no PTT ) so can I use a headset 
microphone like on standard cell phone or even Icom style ( different plug but 
maybe gain is high enough ) and just plug it's line into Mic ?


73

kF5TEU

Bill"Richard Neese [via Elecraft]"  
wrote:On 7/13/2013 10:28 AM, Christian AK4VV wrote: 
> You need the ACC2 breakout cable from Elecraft. The PTT switch from 
> Aircraft Spruce just plugs straight into that. You need to configure the 
> menu item to say you want the contact closure to enable PTT. 
you dont need the breakout cable to put a foot/hand ptt switch. you need 
a mono 2.5 mm headphone jack. and you need to fo into the menu and put 
the acc2 port into ptt_low. 

but if you plan to use a ptt and the amp then you need the breakout cable 

*KX3-PCKT Accessory Cable Set* 

    The KX3-PCKT cable set interfaces between the Elecraft KX3 and 
    personal computers, and provides convenient connection to an 
    external foot switch and RF power amplifier./KX3-PCKT Instructions/ 
    

 

    19.95 

is well woth the money . yoou get all the needed cabl for the kx3. 

> 73, 
> Christian 
> AK4VV 
> On Jul 12, 2013 3:48 AM, "KF5TEU" <[hidden email]> wrote: 
> 
>> I ordered the aircraftsp 
>> What headset/mic/adapter were you using ? 
>> Thanks for the info.ruce PTT but I want to be sure I understand...you 
>> attached this PTT to the ACC2 port on the KX3 and youyou had a 
>> microphone/headset pluged into where exactly, mic in mic, headset in Phones 
>> or what ? 
>> Like others I'm looking for a wireless solution which may just be this PTT 
>> plus a musician style headset with mic and a pass-through wireless 
>> receiver/tx on the back of the KX3 that has a built in VOX to allow it to 
>> send and receive based on input either direction. No models yet but 
>> looking. 
>> 
>> 
>> 
>> -- 
>> View this message in context: 
>> http://elecraft.365791.n2.nabble.com/KX3-headset-recommendation-tp7564383p7576631.html
>> Sent from the Elecraft mailing list archive at Nabble.com. 
>> __ 
>> Elecraft mailing list 
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>> Post: mailto:[hidden email] 
>> 
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>> Please help support this email list: http://www.qsl.net/donate.html
>> 
> __ 
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> 
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If you reply to this email, your message will be added to the discussion below:
http://elecraft.365791.n2.nabble.com/KX3-headset-recommendation-tp7564383p7576670.html
To unsubscribe from KX3 headset recommendation, click here.
NAML



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View this message in context: 
http://elecraft.365791.n2.nabble.com/KX3-headset-recommendation-tp7564383p7576702.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] ERR FW2

[aa4nc]

I followed that procedure (EE Initialization / restored configuration) with no 
change. I am using the latest 1.13.5.9 K3 utility software.

On SSB, now the radio will transmit about 5-10 seconds, then the power drops to 
zero and the monitored audio goes silent (although the transmit relay stays 
engaged). I am occasionally getting ERR FW2, and once I got a "New K3 UTIL 
software required" message on the front panel. 

I tested the radio on CW, where it performs similarly. After transmitting about 
5 seconds, it goes into a solid keydown (on the sidetone) / no power output / 
transmit relay locked / ERR FW2. 

Anyone have any other ideas or is it time to ship it back to Elecraft?

Tnx,

Will




 

 

 

-Original Message-
From: Ron D'Eau Claire 
To: aa4nc ; elecraft 
Sent: Sat, Jul 13, 2013 4:36 pm
Subject: RE: [Elecraft] ERR FW2


Per the Owner's manual the next step after reinstalling firmware is to
reinitialize the parameters and reload your configuration file (pg 66 of the
manual).

73, Ron AC7AC

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of aa...@aol.com
Sent: Saturday, July 13, 2013 1:07 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] ERR FW2

Operating the IARU contest and a previously solid K3 would cease putting out
power, although it remained in transmit. After an hour of doing this
intermittently, I started getting an ERR FW2. Power off/on would clear this.
After another hour, I received a prompt on the front panel that mentioned
something to the effect of "Use  K3 utlity program". After it locked up with
the ERR FW2, I downloaded the latest utility and all new software - MCU
04.67, FPF 1.15, DSP1 2.81, DSP2 2.81. 


It worked for an hour and I started receiving the ERR FW2 again. 


Any ideas??

73/TNX,

Will AA4NC 
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Re: [Elecraft] KX3 headset recommendation

[Richard Neese]

On 7/13/2013 10:17 PM, KF5TEU wrote:

O.K.
I have the KPA100 ordered and the 500 hust got here so I will need the cable 
and I have it, came with my order as I addedvit in.
I have the Heil headset as well for base use.
So the PTT switch plugs into the ACC2 cable, that into ACC2 jack.

yes

Where are you using the mono 2.5mm headphone mono jack ?
the ptt switch/hand button is a acc2 is a 2.5 mm jack mono it you dont 
have the breakout cable. if you have the breakout cable then its a 3.5mm 
mono jack



I have stereo headphones plugged into Phones.

What are using for a mic, the little condenser type plugged directly into the 
Nic hack or a mic on the headsetvor what ?
When menu is set to PTT kow , VOX isvoff then whenvyou push PTT does the mic 
become open for TX  that iplugged in to Mic ?
This means it has to be a buttonless nic ( no PTT ) so can I use a headset 
microphone like on standard cell phone or even Icom style ( different plug but 
maybe gain is high enough ) and just plug it's line into Mic ?

no you can use a standard desktop mic or a headset with a mic or a 
laptop mini mic. with a standard 3.5mm jack on it.
you just have to change the mic bias setting in the menu to on, for this 
type of mic to work.




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Re: [Elecraft] ERR FW2

[Don Wilhelm]

Err FW2 indicates a firmware problem.  Try reloading the firmware and if 
not successful, contact support/


From the K3 user manual
" Try re-loading MCU firmware first; then
try initializing parameters (pg. 66)".

73,
Don W3FPR

On 7/13/2013 10:19 PM, aa...@aol.com wrote:

I followed that procedure (EE Initialization / restored configuration) with no 
change. I am using the latest 1.13.5.9 K3 utility software.

On SSB, now the radio will transmit about 5-10 seconds, then the power drops to zero and 
the monitored audio goes silent (although the transmit relay stays engaged). I am 
occasionally getting ERR FW2, and once I got a "New K3 UTIL software required" 
message on the front panel.

I tested the radio on CW, where it performs similarly. After transmitting about 
5 seconds, it goes into a solid keydown (on the sidetone) / no power output / 
transmit relay locked / ERR FW2.

Anyone have any other ideas or is it time to ship it back to Elecraft?

Tnx,

Will




  

  

  


-Original Message-
From: Ron D'Eau Claire 
To: aa4nc ; elecraft 
Sent: Sat, Jul 13, 2013 4:36 pm
Subject: RE: [Elecraft] ERR FW2


Per the Owner's manual the next step after reinstalling firmware is to
reinitialize the parameters and reload your configuration file (pg 66 of the
manual).

73, Ron AC7AC

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of aa...@aol.com
Sent: Saturday, July 13, 2013 1:07 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] ERR FW2

Operating the IARU contest and a previously solid K3 would cease putting out
power, although it remained in transmit. After an hour of doing this
intermittently, I started getting an ERR FW2. Power off/on would clear this.
After another hour, I received a prompt on the front panel that mentioned
something to the effect of "Use  K3 utlity program". After it locked up with
the ERR FW2, I downloaded the latest utility and all new software - MCU
04.67, FPF 1.15, DSP1 2.81, DSP2 2.81.


It worked for an hour and I started receiving the ERR FW2 again.


Any ideas??

73/TNX,

Will AA4NC
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Re: [Elecraft] ERR FW2

[Ron D'Eau Claire]

One thing. Make sure there is *nothing* connected to the rig: no logging
program, no computer, etc. Just the power supply, antenna, mic and key. RF
getting into external devices can do weird things. 

 

If that doesn't help,  call Elecraft customer support. The number is in your
manual. They will lead you through any additional troubleshooting and then,
if the problem isn't fixed, give you  the information for returning it for
factory service. 

 

73, Ron AC7AC

 

 

 

 

From: aa...@aol.com [mailto:aa...@aol.com] 
Sent: Saturday, July 13, 2013 7:19 PM
To: r...@cobi.biz; elecraft@mailman.qth.net
Subject: Re: [Elecraft] ERR FW2

 

I followed that procedure (EE Initialization / restored configuration) with
no change. I am using the latest 1.13.5.9 K3 utility software.

On SSB, now the radio will transmit about 5-10 seconds, then the power drops
to zero and the monitored audio goes silent (although the transmit relay
stays engaged). I am occasionally getting ERR FW2, and once I got a "New K3
UTIL software required" message on the front panel. 

I tested the radio on CW, where it performs similarly. After transmitting
about 5 seconds, it goes into a solid keydown (on the sidetone) / no power
output / transmit relay locked / ERR FW2. 

Anyone have any other ideas or is it time to ship it back to Elecraft?

Tnx,

Will



 

 

 

-Original Message-
From: Ron D'Eau Claire 
To: aa4nc ; elecraft 
Sent: Sat, Jul 13, 2013 4:36 pm
Subject: RE: [Elecraft] ERR FW2

Per the Owner's manual the next step after reinstalling firmware is to
reinitialize the parameters and reload your configuration file (pg 66 of the
manual).
 
73, Ron AC7AC
 
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of aa...@aol.com
Sent: Saturday, July 13, 2013 1:07 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] ERR FW2
 
Operating the IARU contest and a previously solid K3 would cease putting out
power, although it remained in transmit. After an hour of doing this
intermittently, I started getting an ERR FW2. Power off/on would clear this.
After another hour, I received a prompt on the front panel that mentioned
something to the effect of "Use  K3 utlity program". After it locked up with
the ERR FW2, I downloaded the latest utility and all new software - MCU
04.67, FPF 1.15, DSP1 2.81, DSP2 2.81. 
 
 
It worked for an hour and I started receiving the ERR FW2 again. 
 
 
Any ideas??
 
73/TNX,
 
Will AA4NC 
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[Elecraft] Elecraft CW Net Announcement

[kevinr]

Good Evening,
   A fine week in the Pacific Northwest.  The dry season is here with 
no rain in sight.  Just the morning fog dropping its normal amount of 
moisture.  The hummingbirds have been very active catching insects 
between the fir branches.  I am also seeing elk sign every time I go for 
a hike.  I never see the sneaky beasts but they are all around me.


   Propagation has been fairly good the times I have tried it. The sun 
has been adding its daily dose of ions with no really big blasts.  I 
have heard some static from it but not enough to limit communications.  
The QSB it causes is more of an impediment.


   Please join us tomorrow afternoon and evening.

1) Hail signs  (first letter or two of the suffix of your call)
2) NCS help  (as well as QSP/QNP  help)

Sunday 2200z (Sunday 3 PM PDT) 14050 kHz
Monday 0100z (Sunday 6 PM PDT)  7045 kHz

   Stay well,
  Kevin.  KD5ONS

-
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[Elecraft] Elecraft SSB net announcement

[Phil Shepard]

The weekly Elecraft SSB net will meet tomorrow (7/14/13) at 1800z on 14.3035 
MHz.  I will be net control from western Oregon.  See you there.

73,
Phil, NS7P


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[Elecraft] Local oscillator off on my xv144

[W0WFH Bill]

I need to set the local oscillator frequency on my
XV144. When used with the K2, I just changed the frequency
display in the K2's menu.  But now I want to use the
transverter with another radio on 28Mhz an the 144Mhz
is 1.5 Khz high in frequency.  Now on the XV50 there is
a variable capacitor to set the frequency but on the XV144
I find nothing am I overlooking something?  Please contact
me direct. w0...@yahoo.com  73, Bill
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