Re: [Elecraft] K3 Filter NORM

[Stephen Prior]

Ah, that's perfectly clear now, thanks Iain.

73 Stephen G4SJP



On 06/11/2008 00:00, "Iain MacDonnell - K6IAM" <[EMAIL PROTECTED]> wrote:

> 
> 
> 
> Stephen Prior wrote:
>> Perhaps I've got the wrong end of the stick, and it's only for curiosity's
>> sake I mention this, but I did not think it was possible to independently
>> set crystal filter and dsp bandwidth.  As I alter the width control, filters
>> kick in at the appropriate points, and if I use the XFIL button I just jump
>> between the crystal filter widths and the dsp comes along for the ride.
>> 
>> Have I missed something?  Or maybe misunderstood what is being said...
> 
> The DSP width can be adjusted within the range of the currently selected
> filter, though. The issue is that the NORM function reverts back to the
> default filter for the current mode, rather than reverting the DSP to
> the normalised width for the currently selected filter. I find this
> unintuitive too.
> 
>  ~Iain
> 
> 
> 
>> On 05/11/2008 09:49, "GM0ELP" <[EMAIL PROTECTED]> wrote:
>> 
>>> 
>>> 
>>> The memories are a great feature, but I still think it could be augmented.
>>> 
>>> 1) The last thing I expect to happen when normalising (1/2 sec press basic
>>> function of the Norm button) is for the radio to switch filters, there is an
>>> XFIL button for that if I need it. I think this has a negative effect on the
>>> user friendliness of the transceiver.
>>> 
>>> In firmware:
>>> instead of,
>>> Change to default roofing filter for that mode and normalise DSP around it.
>>> 
>>> replace with,
>>> Determine current roofing filter in use and normalise DSP around it.
>>> 
>>> 2) When using the norm memories, I've noticed that if you memorise a 1KHz
>>> roofing filter and 700Hz DSP, then recall that memory, you get the 'wings'
>>> on the filter display associated with the passband being normalised when
>>> clearly it is not.
>>> 
>>> 
>>> 
>> 
>> 
>> 
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> 



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[Elecraft] K3 - SSB & Filtering in a tough operating environment

[David Wilburn]

There was some discussion recently about the capabilities of the K3 on 
SSB.  I had some concerns about the rigs capabilities.  What I 
experienced made complete sense when properly explained.


But earlier this week, I was truly impressed by the K3's SSB 
capabilities.


During a state wide bi-weekly 80m SSB emergency net, the band changed 
drastically in a very short time.  Net control went from an S5 to down 
in the noise in a matter of 10 minutes.  I listened for a bit, could 
tell that he was talking but that was it.  Nothing was intelligible. 
To top it all off there were round tables going on 80m where each 
person, though located near to each other, was running considerable 
wattage.  One of these were within 2kHz of our frequency.  Then throw 
in the normal intentional QRM the net experiences.  It was truly 
miserable conditions.


Then I started tweaking.  Auto-notch knocked down the intentional QRM. 
 I have the 1.8k filter.  I brought the width into 1.8 so it kicked 
in.  I then started playing with the shift.  A little bit of NR, and I 
could copy net control.  He wasn't S9, but I had good copy, no fading. 
 Station after station could not hear net control call them.  When 
the adjacent station in my county was called and he didn't reply, I 
gave him a quick heads up.  He replied and finished the net, as did I.


In event of a real emergency, this would have made all the difference 
in the world.  I am not a big gun station.  We are talking about a low 
dipole, setup as an inverted vee.


The sense of accomplishment, and the confidence in what I can do with 
the radio went through the roof.


This is an amazing rig Elecraft.  A big thanks to all the folks who 
had a hand in bringing us this impressive product.

--

David Wilburn
NM4M
http://www.nm4m.com

P.S. - CQ WW SSB was were I honed these skills, and started learning 
what all I could get out of this radio.  Just two weeks ago.  This is 
how contesting can pay off.




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[Elecraft] Squelch

[Bernd Wendpaap]

GM.
Are there any future plans to extend the squelch feature to SSB?
73
HS0ZIK VK6WO SA6AZG
-- 
Bernd Wendpaap
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Re: [Elecraft] OT: Vertical antenna ground systems

[Don Wilhelm]

Alan,

LB Cebik and UN4UN (Low Band DXing) had some information on using tuned 
radials - this is a situation that is covered under the topic of 'raised 
radials'.  The tuning technique is to tune each radial with the vertical 
monopole separately - tune for reactance (X) = zero which is the 
resonant condition  without respect to the actual SWR or resistance 
part.  Tune each radial in  turn (one at a time), and when all have been 
tuned, connect them all together to form the 'ground plane'.  After that 
resonance tuning is complete, one can design a matching network to match 
the resistive portion of the feedpoint to the feedline characteristic 
impedance for best power transfer.


The conditions found by someone else in his particular situation may or 
may not be applicable to the situation that your antenna exists in.


73,
Don W3FPR

Alan Bloom wrote:

N6LF has done some wonderful experimental work on vertical antennas.

He found that a radial laid on the ground experiences a velocity factor
similar to coax cable.  A quarter wavelength is only about 60% of its
free space value.  If you make the radials a physical quarter wavelength
long, they are actually closer to a half-wave electrical length
(anti-resonant).

With 4 radials he actually got about a 3 dB improvement by making them
SHORTER!

For my next vertical I will definitely plan to tune the radials.  I
think I'll try laying out a 1/2-wave dipole on the ground and then trim
it to resonance.  Then cut all the radials to equal the length of one
half of the dipole.

Al N1AL


On Tue, 2008-11-04 at 19:10, Ken Kopp wrote:
  
Of potential interest to those who use verticals with their Elecraft 
rigs.


 http://www.antennasbyn6lf.com/


73!  Ken Kopp - K0PP
  [EMAIL PROTECTED] 


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No virus found in this incoming message.
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Re: [Elecraft] OT: Vertical antenna ground systems

[George Badger]

Al
The worst length for a raised radial is a resonant quarter wave. Two together 
form a half wavelength. The problem is that the ground on one side of the 
"dipole" is not exactly the same as the ground on the other side so the 
"dipole" has a life of it's own and becomes a slightly off-center 
driven resonant dipole.
It will radiate some of your energy because of it's stored energy. Energy will 
be wasted because it will be radiated so close to ground.
 The radials should be shorter or longer than a quarter wave so they do not 
form resonant dipoles. Bring the overall antenna system to resonance by 
adjusting the length of the monopole or adding appropriate reactance.
This is very well covered by Moxon [SK] in his book 'HF Antennas For All 
Locations' and elsewhere in the amateur press.
73
Good luck on your project.
George Badger     W6TC


- Original Message 
From: Alan Bloom <[EMAIL PROTECTED]>
To: Ken Kopp <[EMAIL PROTECTED]>
Cc: elecraft@mailman.qth.net
Sent: Wednesday, November 5, 2008 8:47:39 AM
Subject: Re: [Elecraft] OT: Vertical antenna ground systems

N6LF has done some wonderful experimental work on vertical antennas.

He found that a radial laid on the ground experiences a velocity factor
similar to coax cable.  A quarter wavelength is only about 60% of its
free space value.  If you make the radials a physical quarter wavelength
long, they are actually closer to a half-wave electrical length
(anti-resonant).

With 4 radials he actually got about a 3 dB improvement by making them
SHORTER!

For my next vertical I will definitely plan to tune the radials.  I
think I'll try laying out a 1/2-wave dipole on the ground and then trim
it to resonance.  Then cut all the radials to equal the length of one
half of the dipole.

Al N1AL


On Tue, 2008-11-04 at 19:10, Ken Kopp wrote:
> Of potential interest to those who use verticals with their Elecraft 
> rigs.
> 
>          http://www.antennasbyn6lf.com/
> 
> 
> 73!  Ken Kopp - K0PP
>      [EMAIL PROTECTED] 
> 
> ___
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> 
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[Elecraft] Long Time Pending Status

[connectmenow]

I am in a long holding pattern for pending status for mail. I can post and get 
messages on Nabble.com/elecraft but I keep getting pending status. Please let 
me know what I have to do.

Thanks,
Greg
N3TU
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[Elecraft] Long Time Pending Status

[connectmenow]

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[Elecraft] Re: re elecraft mics

[Erik N Basilier]

Hello Fern,
I rarely use the voice modes (except at FD), so having one good hand mike 
(and yes, I did adjust the tx eq) is quite enough for me.
However I'd be happy to listen to your two mikes on the air if that is what 
you have in mind.

73,
Erik K7YV

- Original Message - 
From: "Fern Rivard" <[EMAIL PROTECTED]>
To: "Erik N Basilier" <[EMAIL PROTECTED]>; "Elecraft Reflector" 


Sent: Wednesday, November 05, 2008 8:17 AM
Subject: re elecraft mics


Good morning Erik:  If you would like a good comparison between a dynamic 
mic and the MH-2 electret mic, I would be glad to do it with you. I am using 
a dynamic mic normally used with a commercial vhf/uhf mobile which also has 
the UP/DOWN keys and have compared with the electret MH-2 hand mic and there 
is really no comparison. With the MH-2, I have to fiddle around with the 
transmit audio equilizer while the  dynamic mic is perfect as is.Now a 
problem with the MH-2 is that the curly cord is way too stiff while the 
dynamic mic that I use has a nice long super flexible curly cord. I have 
also tried a Kenwood dynamic hand mic but found that the audio from that mic 
really sucked as it has way to much bass which can be compensated some but 
it still is no match for my commercial hand mic.  73 from Fern with K3 #412



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[Elecraft] Suspend from mailing list, please?

[Tim Soxman]

Hello - my husband, W3ZVT, Tim Soxman, is currently in the hospital (has 
been since 10/13) and his inbox is filling at an alarming rate. Any 
chance you can take him off your mailing list until he is home and can 
read his mail again?


Thank you.

No virus found in this outgoing message.
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Re: [Elecraft] K3 Filter NORM

[Iain MacDonnell - K6IAM]

Stephen Prior wrote:

Perhaps I've got the wrong end of the stick, and it's only for curiosity's
sake I mention this, but I did not think it was possible to independently
set crystal filter and dsp bandwidth.  As I alter the width control, filters
kick in at the appropriate points, and if I use the XFIL button I just jump
between the crystal filter widths and the dsp comes along for the ride.

Have I missed something?  Or maybe misunderstood what is being said...


The DSP width can be adjusted within the range of the currently selected
filter, though. The issue is that the NORM function reverts back to the
default filter for the current mode, rather than reverting the DSP to
the normalised width for the currently selected filter. I find this
unintuitive too.

~Iain




On 05/11/2008 09:49, "GM0ELP" <[EMAIL PROTECTED]> wrote:




The memories are a great feature, but I still think it could be augmented.

1) The last thing I expect to happen when normalising (1/2 sec press basic
function of the Norm button) is for the radio to switch filters, there is an
XFIL button for that if I need it. I think this has a negative effect on the
user friendliness of the transceiver.

In firmware:
instead of,
Change to default roofing filter for that mode and normalise DSP around it.

replace with,
Determine current roofing filter in use and normalise DSP around it.

2) When using the norm memories, I've noticed that if you memorise a 1KHz
roofing filter and 700Hz DSP, then recall that memory, you get the 'wings'
on the filter display associated with the passband being normalised when
clearly it is not.







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Re: [Elecraft] K3 Northwest Workshop!!!

[Lyle Johnson]

Here is an update for those interested.

Please, if you wish to attend, it is important that you RSVP.  If you 
just show up on the day, you may be disappointed :-(


We have a total of 18 people who have RSVPed for the presentations, plus 
2 non-technical attendees, making 20.  There are also 3 maybes.


I can fit in 3 more people before I have to request the "maybes" to 
commit or free up their tentative space.


The event will *not* be video-recorded, or streamed on the 'net.  There 
is a possibility that the *presentations* may be audio-recorded.  This 
is not yet decided.


Attendees are welcome to bring cameras to take still photos.  Some 
attendees may object to having their photo taken, so if you attend and 
want to take a photo that may include a recognizable image of someone, 
please request that person's permission.  Similarly, if you do not want 
your photo taken, it is up to you to make your objection known.


Looking forward to seeing you on the 22nd,

Lyle KK7P
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[Elecraft] N6BV report on K3 in SS

[Andrew Faber]

With Dean's permission, I am posting to the Elecraft reflector the report by 
Dean Straw, N6BV, regarding his use of the K3 at K6TA in SS CW.  As you can 
see, he is a convert!

 73, andy, ae6y




[Report by N6BV]:
My primary motivation for operating SS CW for the last 10 years has been to
contribute to the NCCC effort to get/retain the gavel for the Unlimited Club
competition.

This year I also wanted to give K6TA's new Elecraft K3 a real run for its
money on CW, comparing it directly with a Yaesu FT1000MP. I had used a pair
of FT1000MPs in SO2R for seven years operating at the K6TA station.

RECEIVER SETUP

I had used a K3 at the semi-serious CQWW Phone competition at N6RO's place
at the end of October and I was very impressed with it (especially with the
1.8 kHz roofing filter -- SSB sounded very good even with this narrow
bandwidth). But I consider the CW SS as a much higher stress test for any
receiver, because of all the super-strong domestic signals crowding each and
every kHz of any band that happens to be open.

The K3 at K6TA had two roofing filters installed: a 2.8 kHz 8-pole filter
and a 400 Hz 8-pole filter. The venerable FT1000MP had 500 and 250 Hz
filters in both the 8 MHz and 455 kHz IFs.

For both radios I set the AGC decay time constant to "fast." The AGC
constants available in the setup configuration menu were left at factory
defaults in the K3.

I operated the K3 with the preamp "on," but on the FT1000MP I was forced to
set the IPO to "off" (the equivalent of preamp off) to hold down overload.

RECEIVER OVERLOAD

During the CW SS, even on a clear frequency, the FT1000MP has always showed
annoying low levels of what I call "diddley boops" -- more commonly referred
to as "IMD products" -- created somewhere in the receiver chain. (I've been
told that the IMD is better in FT1000MPs that have had the Inrad roofing
filter modification installed, but this had not been done for the FT1000MP
at K6TA.) In SSB operation and in casual CW operation, I've never been
bothered by FT1000MP IMD. But the CW SS is a different sort of animal, as I
said.

By contrast, the K3 exhibited no IMD, even when I opened up the receive
bandwidth to 2.8 kHz and discovered that I was surrounded by S9+30 dB
signals. No "diddley boops" at all. Furthermore, the number of signals with
objectionable key clicks was far less than I heard using the FT1000MP,
especially when the rain static on Saturday night rose to S9+20 dB and I was
forced to use the Noise Blanker on each radio to try to knock down the
noise. The K3's Noise Blanker, used with non-aggressive settings for both
hardware and DSP noise blanking, did help knock down rain static (to only S8
or so) while creating far less overload problems than did the 'MP's Noise
Blanker.

Interestingly, the K3's 400 Hz filter sounded somehow narrower than the 500
Hz filters in the 'MP, more than the nominal difference between the rated
filter bandwidths. I used the 250-Hz filters in the 'MP when I used it for
S&P in SO2R on the second band, while I kept the K3 bandwidth (both roofing
and DSP) set to 400 Hz 95% of the time I used it as the CQ radio. And I didn
't find that I had to use the RIT very often with the 400 Hz filter, while I
did have to use the RIT often when I had to narrow the DSP filtering down to
250 Hz while CQing.

COPYING THE FULL EXCHANGE

The quality of the K3's audio, the lack of overload and the action of the
AGC seemed to make copying a full exchange much easier for me. I feel like I
required less fills on the K3 than on the FT1000MP. (We'll see after log
checking whether my UBN report is actually better.) Even when a QRP station
faded considerably, the K3 had enough gain reserve and sensitivity so that
the station didn't disappear altogether.

In fact, the "presence" of signals on the K3 reminds me of the way my old
Collins 75S3B used to work, with strong signals sounding stronger (without
blasting your ears), while weak signals sounded weaker, but still copiable.
I think Elecraft has gotten the "AGC slope" characteristics right in the K3.
(That refers to the curve of output audio level versus input RF signal to
the receiver.)

I also like the way the K3's RF Gain control works like a conventional AGC
system (the FT1000MP does also), with the S meter rising as the RF Gain
control is backed off, in effect setting the AGC threshold level. (I dislike
the way the RF Gain control works in my Orion I, but that's another story.)

K3 TRANSMITTER

K6TA is located relatively close to N6RO, and he was using two K3s in SO2R
this SS CW. I tuned across Ken's S9+30 dB signal numerous times and marveled
at his complete lack of key clicks. Elecraft got this right on the K3, for
sure. I still heard far too many weaker signals ("only" S9) with really
objectionable key clicks.

Before the contest, K6TA marveled at how the Alpha 87 "enjoyed" the RF
coming from the K3 -- with no leading-edge spikes in power that would
occasionally shut off the amplifier while using the FT1000MP.

[Elecraft] K3 problem with distorted audio on AM receive

[Frank R. Oppedijk]

Guys,

I'm experiencing a strange behavior on AM receive of strong 
medium-wave broadcast stations. My K3 is equipped with the FM roofing 
filter in the FL1 position. It uses this filter for AM receive.


Before the problem occurred, I had set VFO A to 1.008 kHz by direct 
frequency entry. There's a strong (S-9+40 dB) broadcast station 
there. At that moment the sound quality was  good. Then I moved the 
VFO A dial a couple of kHz and then moved back. This led to the audio 
becoming very distorted. I could only undo the distortion by 
re-loading firmware. (I've noticed this problem with the 2.63 
firmware, but I see it also with the 2.58 amd 2.45 versions...)


Some further investigation learned me that the amount that I can move 
VFO A before the problem starts occurring depends on the settings of 
the DSP filter:


(1) With LO=0.00, HI=3.00, FC=1.50 and BW=6.00, the problem occurs as 
soon as move VFO A more then 2.0 kHz from the start frequency of 1.008 kHz.
(2) With LO=0.00, HI=2.95, FC=0.45 and BW=10.00, the problem occurs 
as soon as move VFO A more then 0.90 kHz from the start frequency of 1.008 kHz.


Has anyone else experienced this? Any ideas as to the cause of it?

73,

Frank PA4N

P.S. Another strange thing, that may or may not be related and which 
I don't understand: why isn't the DSP BW value displayed equal to HI 
- LO ? Can anyone enlighten me?



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Re: [Elecraft] Synchronous detection

[Lyle Johnson]

Incidentally, is synchronous detection for AM still on the todo list?


Yes.

73,

Lyle KK7P
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[Elecraft] Synchronous detection

[Richard S. Lindzen]

Incidentally, is synchronous detection for AM still on the todo list?

Dick Lindzen, KA1SA
301 Lake Avenue
Newton, MA 02461 USA

1-617-332-4342 


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[Elecraft] K3 #843 in CW SS

[John Unger]

I operated in the CW SS this past weekend as an unassisted, SO2R station. I 
had my K3 as the main  radio and was using it for running most of the time; 
I used my TenTec Orion as the S&P second radio. It gave me an excellent 
opportunity to compare the two rigs under fire.


The biggest thing I noticed was how much easier it was to listen to K3 
compared to the Orion. When you are listening to one radio in each ear, you 
notice things like this... One feature of the Orion that did come in handy 
was using the "Sweep" display to make a quick check for activity on a 
"dead" band while still running on the K3.


However, if I had to get rid of one radio, the Orion would be the one to 
go... The K3 is a wonderful contest rig!


73 - John, W4AU


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Re: [Elecraft] K3 Filter NORM

[Stephen Prior]

Perhaps I've got the wrong end of the stick, and it's only for curiosity's
sake I mention this, but I did not think it was possible to independently
set crystal filter and dsp bandwidth.  As I alter the width control, filters
kick in at the appropriate points, and if I use the XFIL button I just jump
between the crystal filter widths and the dsp comes along for the ride.

Have I missed something?  Or maybe misunderstood what is being said...

73 Stephen G4SJP


On 05/11/2008 09:49, "GM0ELP" <[EMAIL PROTECTED]> wrote:

> 
> 
> 
> The memories are a great feature, but I still think it could be augmented.
> 
> 1) The last thing I expect to happen when normalising (1/2 sec press basic
> function of the Norm button) is for the radio to switch filters, there is an
> XFIL button for that if I need it. I think this has a negative effect on the
> user friendliness of the transceiver.
> 
> In firmware:
> instead of,
> Change to default roofing filter for that mode and normalise DSP around it.
> 
> replace with,
> Determine current roofing filter in use and normalise DSP around it.
> 
> 2) When using the norm memories, I've noticed that if you memorise a 1KHz
> roofing filter and 700Hz DSP, then recall that memory, you get the 'wings'
> on the filter display associated with the passband being normalised when
> clearly it is not.
> 
> 
> 



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Re: Re[Elecraft] quest

[Stephen Prior]

Thanks Ian

Done that, broke off the white wire to the electret in the process but all
fixed and working now.  No more aching thumb I hope!

I agree about the lack of suppression components, but I have no problems
with it, and 'if it ain't broke don't fix it' comes to mind!

73 Stephen

On 05/11/2008 09:34, "Ian White GM3SEK" <[EMAIL PROTECTED]> wrote:

> 
> Stephen Prior wrote:
>> This has been exactly my experience too.  The MH-2 is superb and
>> regularly receives unsolicited reports of excellent audio.  My only
>> criticism of it is that the ptt spring is too strong!
>> 
> 
> Cut about two turns off the spring. If that feels too light, stretch the
> spring a little.
> 
> While you have the mic open, notice that it contains no RFI/transient
> suppression components (none needed here, but YMMV).
> 
> Reassembly is much easier if you don't have to fight a compressed
> spring, so squeeze the retaining latch on the PTT button and slide it
> part-way out. Then screw the case together and click the PTT button back
> into place.
> 



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Re: [Elecraft] K3 Beta firmware rev. 2.63: Switch-press tones

[Dave G4AON]

Can we have carrier level displayed for power instead of "peak" - it 
means more to most and matches the power setting arrangement of many 
other transceivers. Compression would be nice too!


73 Dave, G4AON
K3/100 #80


That said, we're looking into further improvements in AM transmit.

73,

Lyle KK7P
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Re: [Elecraft] future ham gear and Sound perception

[Dave G4AON]

Glad to say the K3 does pretty much all I want, lets not try to 
fix/modify something that ain't broke!


73 Dave, G4AON
K3/100 #80
---
Future ham gear, given our advancing ages, should include:
-larger and single function buttons for Parkinsons folks, and
everyone else, too.

-high freq audio boost and eq. and "balance" control to feed
more to one ear than the other.
-footswitch option is easy to add (feet work, hands do not).
-LARGE dial and large clear-contrast print on sw labels.
-Big RTTY/data readout on front pannel for those that can not
hear much anymore or for those whose speech is now impaired.
-Lots of automatic functions for often-repeated items.

Notice now few of these factors are on the K3, sad to say.

73,

Charles Harpole
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Re: [Elecraft] K3 Beta firmware rev. 2.63: Switch-press tones

[dalspaugh]

Yes that's exactly what I observed here. Glad your looking at it. 



73 Doug N3QW 


- Original Message - 
From: "Lyle Johnson" <[EMAIL PROTECTED]> 
To: [EMAIL PROTECTED] 
Cc: "Elecraft Reflector" , "wayne burdick" <[EMAIL 
PROTECTED]> 
Sent: Wednesday, November 5, 2008 1:38:36 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [Elecraft] K3 Beta firmware rev. 2.63: Switch-press tones 

>> * AM TRANSMIT: CONFIG:TXG VCE no longer affects AM transmit. 
> 
> Is there now going to be a new AM carrier adjustment? 

We had several complaints about TXG VCE messing up AM power levels, 
which resulted in the change. 

The way it works now is that the carrier will initially typically be a 
little on the low side. As you send audio through it, the 
peak-detecting ALC will take over and make the final adjustment to 
transmit power. This results in the peak power management with high 
modulation while not overdriving someone's attached linear amplifier's 
input protection circuitry. 

That said, we're looking into further improvements in AM transmit. 

73, 

Lyle KK7P 
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Re: [Elecraft] K3 Beta firmware rev. 2.63: Switch-press tones

[Lyle Johnson]

* AM TRANSMIT: CONFIG:TXG VCE no longer affects AM transmit.


Is there now going to be a new AM carrier adjustment?  


We had several complaints about TXG VCE messing up AM power levels, 
which resulted in the change.


The way it works now is that the carrier will initially typically be a 
little on the low side.  As you send audio through it, the 
peak-detecting ALC will take over and make the final adjustment to 
transmit power.  This results in the peak power management with high 
modulation while not overdriving someone's attached linear amplifier's 
input protection circuitry.


That said, we're looking into further improvements in AM transmit.

73,

Lyle KK7P
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[Elecraft] OT - L. B. Cebik (sk) website - Antenna related testing and design

[Jim Miller]

L.B. Cebik(sk) was the technical editor for AntennaX magazine for many
years.  He is now silent key but his website is now being hosted by the
magazine in his memory.  There is a tremendous amount of information there.
He ahs also authored many books on antenna subjects including antenna
modeling that you will also find available on the website.  This is a huge
information recourse.  His books are great.  His antenna testing and
analysis posted on the website is invaluable.

www.cebik.com

Take a look,
73, de Jim KG0KP

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[Elecraft] K3 234 and 752 in SS CW

[Bob Evans]

I had a ball in SS CW this past weekend.  The K3s are connected with an MK2R
and I use N1MM software in full SO2R mode.  I had 1260 Qs and 80 sections
over 24 hours in the SOHP category.  HP for me is 750W from my old
Clipperton-Ls until the KPA-1500 comes out ( soon, I hope? hint hint  ;-)  )
I had no glitches from the K3s and was actually more relaxed and rested than
I had ever been after an SS adventure.  I used the AFX on both rigs and I
think it really helped the fatigue factor.  There were very few stations
that I had to work hard to pull through and QRP stations were noticeably
higher in count that I remember from years past.  My biggest thrill was
having a VE4 and a VE8 call me consecutively at about 5 PM local on Sunday.
I had completely given up on getting a sweep this year, so when my last 2
sections popped up as I was CQing, that made my contest right there.   

 

I hope I worked you!  See you during the SSB weekend.

 

73,

Bob K5WA

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[Elecraft] SOLD:KAF2 Kit Unbuilt $65 Incl Shipping

[Curt]

The kit has sold
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Re: [Elecraft] OT: Vertical antenna ground systems

[Alan Bloom]

N6LF has done some wonderful experimental work on vertical antennas.

He found that a radial laid on the ground experiences a velocity factor
similar to coax cable.  A quarter wavelength is only about 60% of its
free space value.  If you make the radials a physical quarter wavelength
long, they are actually closer to a half-wave electrical length
(anti-resonant).

With 4 radials he actually got about a 3 dB improvement by making them
SHORTER!

For my next vertical I will definitely plan to tune the radials.  I
think I'll try laying out a 1/2-wave dipole on the ground and then trim
it to resonance.  Then cut all the radials to equal the length of one
half of the dipole.

Al N1AL


On Tue, 2008-11-04 at 19:10, Ken Kopp wrote:
> Of potential interest to those who use verticals with their Elecraft 
> rigs.
> 
>  http://www.antennasbyn6lf.com/
> 
> 
> 73!  Ken Kopp - K0PP
>   [EMAIL PROTECTED] 
> 
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[Elecraft] K2 # 06602 alive

[Marinus, ZL2ML]

Finished building the K2 #6602 together with KAF2 and KNB2. Was easier than
expected and certainly easier than bringing my Omni 546-C to life after it
had been stored for 28 years. 

No serious problems were encountered, only a couple of small ones which came
down to operator error of driving the menus. For one the answer was found
ont he reflector and for the other I had to write to support and I had a
fast reply from Elecraft telling me what to do and why things happened. This
support is what makes Elecraft great.

Adjusting the reference oscillator and the filters took more time than
expected and spectogram was very usefull here. The instructions and write up
by N0SS were very usefull and the K2 filter and reference frequency
adjustments became next to perfect. I did change the filter bandwidths for
CW however to widths more to my liking: 1.3 Khz, 650 Hz, 400 Hz and 250 Hz. 

Time to get back on the air again, 73, Marinus, ZL2ML


-- 
View this message in context: 
http://n2.nabble.com/K2---06602-alive-tp1460782p1460782.html
Sent from the Elecraft mailing list archive at Nabble.com.

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[Elecraft] Commercial mic?

[Ken Kopp]

Hi Fern,

I'm -sure- many would like to know what "commercial
microphone" you're referring to! (:-))  Many of us are 
involved in the commercial radio field and would likely

have it readily available.

I agree about the stiff cord on the hand microphone.  It's capable
of dragging the radio off the desk!

73! Ken Kopp - K0PP
 [EMAIL PROTECTED]
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[Elecraft] re elecraft mics

[Fern Rivard]

Good morning Erik:  If you would like a good comparison between a dynamic mic 
and the MH-2 electret mic, I would be glad to do it with you. I am using a 
dynamic mic normally used with a commercial vhf/uhf mobile which also has the 
UP/DOWN keys and have compared with the electret MH-2 hand mic and there is 
really no comparison. With the MH-2, I have to fiddle around with the transmit 
audio equilizer while the  dynamic mic is perfect as is.Now a problem with the 
MH-2 is that the curly cord is way too stiff while the dynamic mic that I use 
has a nice long super flexible curly cord. I have also tried a Kenwood dynamic 
hand mic but found that the audio from that mic really sucked as it has way to 
much bass which can be compensated some but it still is no match for my 
commercial hand mic.  73 from Fern with K3 #412
- Original Message - 
From: "Erik N Basilier" <[EMAIL PROTECTED]>
To: "elecraft" 
Sent: Wednesday, November 05, 2008 12:57 AM
Subject: Re: Re[Elecraft] quest


When I received my MH-2, I almost put it up for sale because it is so bulky 
in the
hand, especially with the non-removable hanger, and yes, the ptt button is a 
bit of
a pain. Then I listened to it with the monitor and found that the sound 
quality is
much better than the dynamic Kenwood mike I was comparing it to. The MH-2
stays! In fact in other audio applications I have always found that an 
electret mike
is superior to a dynamic.

Erik K7TV

- Original Message - 
From: "Stephen Prior" <[EMAIL PROTECTED]>
To: "elecraft" 
Sent: Wednesday, November 05, 2008 12:33 AM
Subject: Re: Re[Elecraft] quest


> This has been exactly my experience too.  The MH-2 is superb and regularly
> receives unsolicited reports of excellent audio.  My only criticism of it 
> is
> that the ptt spring is too strong!
>
> 73 Stephen G4SJP
> K3, K2, KX-1
>
>
> On 05/11/2008 05:37, "-.-.  --.-N3TU -.-.  --.-" 
> <[EMAIL PROTECTED]>
> wrote:
>
>>
>>
>> I found out that the hand mic from Elecraft works best on the EQ. I have
>> tried different "studio" style mics and it seems like the EQ goes wider 
>> with
>> the one from Elecraft. (MH2). The next best mic in second place was one 
>> of
>> the gamers mics with the foot pedal. The Kenwood and the ADI radio plugs
>> work on Elecraft if you use a headset with a foot pedal. It's amazing 
>> that I
>> can get more lows and highs from the little hand mic and had confirmed my
>> findings over air. The stations I've talked told me that the hand mic 
>> sounds
>> deeper, richer and more brilliant on the EQ than the other mics that were
>> adjusted again on the EQ again. I think the money was well spent on the 
>> hand
>> mic and have no regrets.
>>
>>
>>
>>
>> Phil LaMarche-2 wrote:
>>>
>>> I'm considering he purchase of a K3 to replace my 756 Pro III.  I have
>>> wonderful audio with the Icom and would like some comments on the K3 
>>> audio
>>> and microphone recommendations for the best audio w/o external help. I'm
>>> going to get it pretty well loaded.
>>>
>>> Thanks
>>>
>>> Phil
>>>
>>>
>>> Philip LaMarche
>>> LaMarche Enterprises, Inc.
>>> www.instantgourmetspices.com 
>>>
>>> www.w9dvm.com 
>>> 800-395-7795 pin 02
>>> 727-944-3226
>>> FAX 727-937-8834
>>> NASFT 30210
>>> W9DVM
>>>
>>>
>>>
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>>>
>>>
>
>
>
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> 


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-- 
No virus found in this incoming message.
Checked by AVG. 
Version: 7.5.549 / Virus Database: 270.8.5/1762 - Release Date: 11/2/2008 9:51 
AM


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[Elecraft] K3 - KRX3 shipping status

[Bruce Meier]

A recent posting was asking for RXV3 shipping information - 


K3 order date:   January 21, 2008

K3 Ship date: June 9, 2008   (Serial # 1062)

KRX3 Katie Gram:  November 4, 2008



One more to go for K3 #1193


73,
Bruce - N1LN
(aka: NC4KW)
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Re: [Elecraft] K3 Beta firmware rev. 2.63: Switch-press tones

[Doug Alspaugh]

After upgrading I set to AM mode on 20 mtrs. At first the carrier went only 
to 20 watts. When I modulated I got about 75 watts voice peaks. The more I 
modulated the higher the carrier got till it went up to 35 watts and the 
modulated carrier peaked at 100 watts. Turning the rig off resets the power 
out to 20 watts and modulating it a few times returns to full power. Strange 
behavior for sure.



73 Doug N3QW






- Original Message - 
From: "Joe Subich, W4TV" <[EMAIL PROTECTED]>
To: "'wayne burdick'" <[EMAIL PROTECTED]>; "'Elecraft Reflector'" 


Sent: Tuesday, November 04, 2008 11:53 PM
Subject: RE: [Elecraft] K3 Beta firmware rev. 2.63: Switch-press tones




* AM TRANSMIT: CONFIG:TXG VCE no longer affects AM transmit.


Is there now going to be a new AM carrier adjustment?

With TXG VCE "lost" on AM, my carrier output is well below
what it should be (and was with TXG VCE = 1.0 or 1.5 depending
on the which K3 I was using).  With previous firmware the same
value of TXG VCE that equalized the SSB PEP output with CW
resulted in 22 to 28 watts of AM carrier when the power level
was set for 100 watts.  With TXG VCE disabled in FW 2.64, I now
get only 14 to 15 Watts of carrier.

73,

  ... Joe, W4TV






-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of wayne burdick
Sent: Tuesday, November 04, 2008 8:52 PM
To: Elecraft Reflector
Subject: [Elecraft] K3 Beta firmware rev. 2.63: Switch-press tones


K3 beta-test firmware revision 2.63 (with DSP rev 1.95) is now
available. Please send any problem reports to [EMAIL PROTECTED]
For instructions on how to load beta firmware, please see:

   http://www.elecraft.com/K3/k3_software.htm

Highlights:

* Audio tones on switch press (if CONFIG:SW TONE is set to ON)

* 1 kHz AM COARSE VFO TUNING RANGE ADDED

* Many new remote-control commands for use by PC software applications

Full details appear below.

73,
Wayne
N6KR

* * *

MCU 2.63 / DSP 1.95, 11-04-2008

* SWITCH TONES NOW AVAILABLE: If CONFIG:SW TONE is set to ON,
tapping or holding switches produces audio tones
corresponding to the switch
state. This
supplements the normal tactile feedback of the switches.

* NORM SWITCH ALLOWED DURING TX: The “NORM” switch function
(receive passband normalization, e.g. 400 Hz in CW mode) can
now be accessed
during
transmit. It takes effect after the K3 returns to receive
mode. This is
especially useful for CW contest operation.

* COMPRESSION RANGE: Some operators asked for a higher “CMP” (speech
compression) setting to add “punch” under certain conditions. It can
now be
set from 0-40. We still recommend lower settings (0-20) for normal
operation.

* AM COARSE VFO TUNING RATES: Now 1, 5, 9, and 10 kHz.

* AM TRANSMIT: CONFIG:TXG VCE no longer affects AM transmit.

* SPLIT COMBINATIONS AVAILABLE: Cross-mode SPLIT operation is
possible with any combination of CW and SSB for VFO A and B.
Same-mode SPLIT is possible in all modes except PSK-D.

* CROSS-MODE SPLIT INDICATION: If you turn on SPLIT with VFO
A and B in different legal modes (e.g. CW and SSB), the K3
will remind you of VFO B’s mode by flashing it (as well as
the VFO B TX arrow). This
reminder
can be cancelled by tapping any switch, key, or PTT. The
reason for the “reminder” is that operators usually enter
cross-mode split by
accident. If so,
cancel the reminder flash, then use BSET to change VFO B’s
mode, or tap
A>B to copy mode A to mode B.

For software developers:

* “FW$” ADDED (direct sub/VFO B filter bandwidth).

* “SM$” ADDED (direct sub-receiver S-meter read).

* "DV" (DIVERSITY) COMMAND:  DV0 (off), DV1 (on). Also turns sub
off/on. To turn
on the sub but not diversity, use an “SWT” command (verify SUB status
with “DS”).

* COMMANDS AVAILBLE DURING BSET: "IF", "FA", "FB", "MD”,
“MD$", and "DT" (GET only). “FW” and “FW$” work in BSET
except during diversity (TBD).


---

http://www.elecraft.com


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[Elecraft] FS:KAF2 Kit Unbuilt $65 Incl Shipping

[Curt]

I bought too many option kits with my K2.
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Re: [Elecraft] K3 Northwest Workshop!!!

[Lyle Johnson]

Is there are possibility of streaming video of the proceedings...


Sorry, no.

It's going to be tricky enough accommodating the physical attendees!

73,

Lyle KK7P
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Re: [Elecraft] K3 Beta firmware rev. 2.63: Switch-press tones

[drewko]

Yes, indeed. I like the high and low tones for long push on/off.

73,
Drew
AF2Z


On Wed, 05 Nov 2008 08:29:16 +, Ian J Maude, G0VGS wrote:

>Thankyou!!!  I know it seems such a simple thing but the tones make 
>operating the radio sooo much easier for me!  I have been hoping 
>this would come along.
>
>Many thanks :)
>
>Ian

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[Elecraft] K3 Northwest Workshop!!!

[David Pratt]

I'm afraid that Lyle's K3 workshop on November 22 will be just a tad too 
far for me to travel from North-East England, UK ;-(


I do hope it goes well.

Is there are possibility of streaming video of the proceedings being 
sent to the internet so that those of us too far away may benefit from 
Lyle's experience?


73
--
David G4DMP
Leeds, England, UK
--


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[Elecraft] K3 Pan Adapter

[Gary Gregory]

Just a thought?

How about Elecraft produce an external accessory that provides a band scope,
spectrum analyser and any other "toys" they think appropriate so that those
of us who do NOT require such toys can enjoy our K3's and allow Elecraft to
work on release of various other products such as the KPA-800/1500
amplifiers?

I would like to see Elecraft go down this road rather than try to cram some
of the rather strange features we see posted on the reflector as "wish it
had this" instead of accepting that the K3 was not designed to knock off
radios such as the FTdx9000D, IC-7800 etc..etc. These radios are full of
features that go mostly unused when you sit down and watch the owner
actually use these radios. I sold my 9000D as I never used the majority of
the features anyway. I can also add that the band scope and audio trace
(receive only) on the 9000D is pretty hopeless, totally inaccurate and the
host of items on the menu list are near impossible to read with anything
much less than normal 20/20 vision.

I have yet to find another radio that beats the K3 in all areas that the K3
does well. The receiver is tops, the audio reports are great and for field
and shack use the K3 stands apart from all the rest.

Just a couple of cents worth...(given the exchange rate lately it is more
likely a 1/2 cents worth)

73's
Gary
K3 S/N 679
I just got lost in thought. It was unfamiliar territory
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Re: [Elecraft] K3 Filter NORM

[GM0ELP]

The memories are a great feature, but I still think it could be augmented.

1) The last thing I expect to happen when normalising (1/2 sec press basic
function of the Norm button) is for the radio to switch filters, there is an
XFIL button for that if I need it. I think this has a negative effect on the
user friendliness of the transceiver.

In firmware:
instead of,
Change to default roofing filter for that mode and normalise DSP around it.

replace with,
Determine current roofing filter in use and normalise DSP around it.

2) When using the norm memories, I've noticed that if you memorise a 1KHz
roofing filter and 700Hz DSP, then recall that memory, you get the 'wings'
on the filter display associated with the passband being normalised when
clearly it is not.




-- 
View this message in context: 
http://n2.nabble.com/K3-Filter-NORM-tp1456939p1459379.html
Sent from the Elecraft mailing list archive at Nabble.com.

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Re: Re[Elecraft] quest

[Ian White GM3SEK]

Stephen Prior wrote:
This has been exactly my experience too.  The MH-2 is superb and 
regularly receives unsolicited reports of excellent audio.  My only 
criticism of it is that the ptt spring is too strong!




Cut about two turns off the spring. If that feels too light, stretch the 
spring a little.


While you have the mic open, notice that it contains no RFI/transient 
suppression components (none needed here, but YMMV).


Reassembly is much easier if you don't have to fight a compressed 
spring, so squeeze the retaining latch on the PTT button and slide it 
part-way out. Then screw the case together and click the PTT button back 
into place.



--

73 from Ian GM3SEK
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Re: [Elecraft] K3 Beta firmware rev. 2.63: Switch-press tones

[Ian Maude]

wayne burdick wrote:
K3 beta-test firmware revision 2.63 (with DSP rev 1.95) is now 
available. Please send any problem reports to [EMAIL PROTECTED] 
For instructions on how to load beta firmware, please see:


  http://www.elecraft.com/K3/k3_software.htm

Highlights:

* Audio tones on switch press (if CONFIG:SW TONE is set to ON)
Thankyou!!!  I know it seems such a simple thing but the tones make 
operating the radio sooo much easier for me!  I have been hoping 
this would come along.


Many thanks :)

Ian

--

Ian J Maude, G0VGS
SysOp GB7MBC DX Cluster
Member RSGB, GQRP
K2 #4044 |K3 #455
http://www.amateurradiotraining.org 


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Re: [Elecraft] future ham gear and Sound perception

[Ian Maude]

Charles Harpole wrote:

Future ham gear, given our advancing ages, should include:

-larger and single function buttons for Parkinsons folks, and 


everyone else, too.

-high freq audio boost and eq. and "balance" control to feed

more to one ear than the other.

-footswitch option is easy to add (feet work, hands do not).

-LARGE dial and large clear-contrast print on sw labels.

-Big RTTY/data readout on front pannel for those that can not

hear much anymore or for those whose speech is now impaired.

-Lots of automatic functions for often-repeated items.

Notice now few of these factors are on the K3, sad to say.

73,
  
Charles, as you much prefer yout FT-9000 and the buttons and screen on 
the K3 are not to your liking, it makes me wonder why you simply do not 
sell your K3!


73 Ian

--

Ian J Maude, G0VGS
SysOp GB7MBC DX Cluster
Member RSGB, GQRP
K2 #4044 |K3 #455
http://www.amateurradiotraining.org 


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