Re: [Elecraft] VFO NR

[Mark Petiford via Elecraft]

 Re:  "But here's the trick: hold the RATE(KHZ) button. It should unlock. 
Don'task how I figured this out."


It is in the Owners Manual at the top of the "Menu Functions" table.  Page 35 
in manual revisions B5 thru C5.  It says:

"To change any tech-mode parameter, you must first unlock it by holding KHZ for 
about 3 seconds.  This turns off the lock symbol."

If you have the optional KXFL3 filter board installed, it can be the source of 
much of the tuning noise on the early serial number units.  A simple mod to the 
roofing filter board is described here:

http://www.elecraft.com/manual/KX3%20Tuning%20Noise%20Mod%20rev%20B3.pdf


I highly recommend that mod.  Before I did it, I could not hear any signals 
while tuning across the band on 28mhz and higher.  It is simple, and probably 
took me less than 15 minutes.  It eliminated almost all the tuning noise on my 
s/n 3500 KX3.

Mark,
KE6BB


   
  
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Re: [Elecraft] OT: Re: Baker Island - Tnx Elecraft!

[Wes Stewart]

I only needed KH1 on 17, 30 and 160.  I didn't much care about 17 and 30 but 160 
is my newest interest. My station is modest, particularly on Topband, where I 
use on both TX and RX, an inverted-l with 55' vertical and the top wire sloping 
down to about 45'. At the moment about twenty 55' radials laid on the ground.  A 
K3S and KPA500 round out the station.


I first heard and worked them at 1134Z on 6/27.  That is just beginning my 
sunrise.  They were weak and in the noise, but I eked out a marginal contact.  
Ten minutes later they were way out of the noise and I considered making an 
insurance contact but didn't want to get on their bad side, so I refrained.  A 
couple of days later on the 29th I thought I would get some insurance.  This 
time I worked them @0618Z which was their morning twilight.  The enhancement 
peak was amazing.  They boomed in for ten minutes or more and then started 
fading into my noise, but they were still readable when I believe they gave up.  
My first QSO didn't show up in Clublog at first so I was glad for the 
insurance.  Later it did show up along with an extra one.  They show me making 
three Qs but I only made 2.


Maybe they're making up for 20-meters where I called and they came back to 
N7WH.  I sent my call twice and he finally sent it correctly but must have left 
the log wrong.  So I worked them again.  I did also get them on 30 and after 
working them on 17 CW and SSB, I broke down and let my computer work them on FT8.


Wes  N7WS


On 7/6/2018 5:34 PM, David Olean wrote:
I would echo the comments about the Baker/ Howland Island DXpedition and 
Elecraft. I am only on two HF bands: 160 and 10 meters. I figured that ten 
meters was a stretch, but that 160 meter CW was possible from Maine with a 
little luck. I was away from my shack for most of the operating period, but 
managed to get home on July 3rd and set my clock alarm for 4AM on July 4th for 
about the last chance to work them.  When I got on and listened at 0800 UT I 
heard nothing. No KH1 and no callers either. I parked on 1822.5 and set my TX 
up 1 kHz. I heard static crashes and white noise for about an hour. No signals 
heard at all!! I was all set to give up, and was reading an article on the 
web, when, all of a sudden, KH7Z popped out of the noise, weak but fairly 
audible calling CQ and UP.  I was startled by how fast they peaked up from 
nothing and called them once. Imagine my surprise when they answered my first 
call. (Someone had really good ears!) I could not believe it and called them 
again. This time I was sure they heard my call and we completed the contact.  
I just sat there in awe contemplating the fact that I had them in my log 
within one minute after they first appeared out of the noise on 160 meters. 
The contact took place right at sunrise.  I suspect that the KPA-1500 was 
working overtime on 160 M. Thanks Elecraft for the support of the operation, 
and thanks for making such a nice receiver that is the K3! I used diversity 
reception with two beverages. The TX antenna is a single vertical.  All I can 
say is WOW!


Dave K1WHS 


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Re: [Elecraft] VFO NR

[Detrick Merz]

Maybe you're pushing the wrong button. When I tried this myself, I first
tried to use the 'freq ent' button (because, after all, the radio tells you
'to unlock, hold freq for 3 sec' and that's the only 'freq' button I see).
But here's the trick: hold the RATE(KHZ) button. It should unlock. Don't
ask how I figured this out.

I forget what all (and expect someone else on the list will fill in), but
there were some updates made after those earlier serial numbers. I think
some of those updates can be applied to the older models, but not sure if
all can. I *am* curious to hear whether the VFO NR helps you or not, and
also curious to hear if your radio can be brought up to the current spec.

gl es 73,

-detrick
K4IZ

On Fri, Jul 6, 2018 at 6:07 PM, Sean Hayden  wrote:

> Hi all,
>
> I have a new to me KX3 that produces VFO dial noise on a few bands.  I see
> there is a VFO NR option enabled in tech mode, but the setting is locked
> and pressing the freq ent button for 3 seconds doesn't do anything (other
> than beep twice).  The serial number of the unit is 968.  I have updated
> the firmware to the latest version.
>
> Thanks,
> Sean
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Re: [Elecraft] [OT] Legal Data Bandwidths

[Kevin Cozens]

On 2018-07-06 06:00 PM, Bill Frantz wrote:
This rule allows some really interesting options. As I understand "symbol 
rate" it is the rate at which the signal changes from one symbol (BAUD) to 
another. What is not limited is the number of bits sent with each symbol.


To present an example I hope never to see on the air, on 15M we are 
permitted to send digital data between 21.0 to 21.2 MHz. Someone could come 
up with a digital mode that used 200 KHz of bandwidth
Have I misunderstood the above? I would find it very surprising that the FCC 
does not specify bandwidth limits on signal in the amateur bands, regardless 
of mode. IIRC, there are limits set on signal bandwidths in Canada.


--
Cheers!

Kevin.

http://www.ve3syb.ca/   | "Nerds make the shiny things that
https://www.patreon.com/KevinCozens | distract the mouth-breathers, and
| that's why we're powerful"
Owner of Elecraft K2 #2172  |
#include  | --Chris Hardwick
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Re: [Elecraft] [OT] Legal Data Bandwidths

[Joe Subich, W4TV]

On 2018-07-06 6:00 PM, Bill Frantz wrote:


The ARRL recommended to the FCC that modes be regulated by bandwidth, 
and not just the mode. The FCC said no. However, that kind of regulation 
would solve this problem.


ARRL have *never* made a coherent proposal that included regulation by
bandwidth.  The only time they proposed maximum bandwidths for specific
modes they screwed it up so badly that it languished for several years 
and ARRL withdrew their proposal.


The Commission has never taken a stance on either regulation by
bandwidth or regulation of bandwidth.  Their only (private) statements
is that they are waiting on ARRL to provide a coherent proposal that
represents a consensus among all stake holders.

73,

   ... Joe, W4TV
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Re: [Elecraft] OT: Re: Baker Island - Tnx Elecraft!

[Joe K2UF]

My 2 cents.  Thanks Baker group and Elecraft for number 329 CW

73  Joe K2UF 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of AB4IQ
Sent: Friday, July 06, 2018 8:49 PM
To: 'David Olean'; elecraft@mailman.qth.net
Subject: Re: [Elecraft] OT: Re: Baker Island - Tnx Elecraft!

I'm in far Western KY just about 30 miles from the Mississippi river and I
worked them on FT8 at 10:33 UTC on the 3rd and got my 160 CW contact on the
4th at 10:33 UTC.  Amazing both contacts at the same time on both days.
They were super loud on the 4th and my KPA1500 did the job on CW.  I was
running 100 watts on the FT8 contact.

Ed.. AB4IQ

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Olean
Sent: Friday, July 6, 2018 7:34 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] OT: Re: Baker Island - Tnx Elecraft!

I would echo the comments about the Baker/ Howland Island DXpedition and
Elecraft. I am only on two HF bands: 160 and 10 meters. I figured that ten
meters was a stretch, but that 160 meter CW was possible from Maine with a
little luck. I was away from my shack for most of the operating period, but
managed to get home on July 3rd and set my clock alarm for 4AM on July 4th
for about the last chance to work them.  When I got on and listened at 0800
UT I heard nothing. No KH1 and no callers either. I parked on 1822.5 and set
my TX up 1 kHz. I heard static crashes and white noise for about an hour. No
signals heard at all!! I was all set to give up, and was reading an article
on the web, when, all of a sudden, KH7Z popped out of the noise, weak but
fairly audible calling CQ and UP.  I was startled by how fast they peaked up
from nothing and called them once. Imagine my surprise when they answered my
first call. 
(Someone had really good ears!) I could not believe it and called them
again. This time I was sure they heard my call and we completed the contact.
I just sat there in awe contemplating the fact that I had them in my log
within one minute after they first appeared out of the noise on 160 meters.
The contact took place right at sunrise.  I suspect that the KPA-1500 was
working overtime on 160 M. Thanks Elecraft for the support of the operation,
and thanks for making such a nice receiver that is the K3! I used diversity
reception with two beverages. The TX antenna is a single vertical.  All I
can say is WOW!

Dave K1WHS



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Re: [Elecraft] OT: Re: Baker Island - Tnx Elecraft!

[AB4IQ]

I'm in far Western KY just about 30 miles from the Mississippi river and I 
worked them on FT8 at 10:33 UTC on the 3rd and got my 160 CW contact on the 4th 
at 10:33 UTC.  Amazing both contacts at the same time on both days.  They were 
super loud on the 4th and my KPA1500 did the job on CW.  I was running 100 
watts on the FT8 contact.

Ed.. AB4IQ

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Olean
Sent: Friday, July 6, 2018 7:34 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] OT: Re: Baker Island - Tnx Elecraft!

I would echo the comments about the Baker/ Howland Island DXpedition and 
Elecraft. I am only on two HF bands: 160 and 10 meters. I figured that ten 
meters was a stretch, but that 160 meter CW was possible from Maine with a 
little luck. I was away from my shack for most of the operating period, but 
managed to get home on July 3rd and set my clock alarm for 4AM on July 4th for 
about the last chance to work them.  When I got on and listened at 0800 UT I 
heard nothing. No KH1 and no callers either. I parked on 1822.5 and set my TX 
up 1 kHz. I heard static crashes and white noise for about an hour. No signals 
heard at all!! I was all set to give up, and was reading an article on the web, 
when, all of a sudden, KH7Z popped out of the noise, weak but fairly audible 
calling CQ and UP.  I was startled by how fast they peaked up from nothing and 
called them once. Imagine my surprise when they answered my first call. 
(Someone had really good ears!) I could not believe it and called them again. 
This time I was sure they heard my call and we completed the contact.  I just 
sat there in awe contemplating the fact that I had them in my log within one 
minute after they first appeared out of the noise on 160 meters. The contact 
took place right at sunrise.  I suspect that the KPA-1500 was working overtime 
on 160 M. Thanks Elecraft for the support of the operation, and thanks for 
making such a nice receiver that is the K3! I used diversity reception with two 
beverages. The TX antenna is a single vertical.  All I can say is WOW!

Dave K1WHS



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Re: [Elecraft] OT: Re: Baker Island - Tnx Elecraft!

[David Olean]

I would echo the comments about the Baker/ Howland Island DXpedition and 
Elecraft. I am only on two HF bands: 160 and 10 meters. I figured that 
ten meters was a stretch, but that 160 meter CW was possible from Maine 
with a little luck. I was away from my shack for most of the operating 
period, but managed to get home on July 3rd and set my clock alarm for 
4AM on July 4th for about the last chance to work them.  When I got on 
and listened at 0800 UT I heard nothing. No KH1 and no callers either. I 
parked on 1822.5 and set my TX up 1 kHz. I heard static crashes and 
white noise for about an hour. No signals heard at all!! I was all set 
to give up, and was reading an article on the web, when, all of a 
sudden, KH7Z popped out of the noise, weak but fairly audible calling CQ 
and UP.  I was startled by how fast they peaked up from nothing and 
called them once. Imagine my surprise when they answered my first call. 
(Someone had really good ears!) I could not believe it and called them 
again. This time I was sure they heard my call and we completed the 
contact.  I just sat there in awe contemplating the fact that I had them 
in my log within one minute after they first appeared out of the noise 
on 160 meters. The contact took place right at sunrise.  I suspect that 
the KPA-1500 was working overtime on 160 M. Thanks Elecraft for the 
support of the operation, and thanks for making such a nice receiver 
that is the K3! I used diversity reception with two beverages. The TX 
antenna is a single vertical.  All I can say is WOW!


Dave K1WHS



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Re: [Elecraft] help wiring a mic?

[n3...@coastside.net]

   Kind of make you wonder. Just how many questions don’t get asked. I know 
I’ve been on this reflector for a while now and have yet to dare ask anyone 
anything.
If you use the wrong punctuation or mis-spell something! You could get lynched 
or tarred and feathered and run out of town. 
   We won’t even broach the subject of differing opinions. 
 Ron Genovesi
   N3ETA
Sent from my iPhone

> On Jul 6, 2018, at 8:00 AM, Walter Underwood  wrote:
> 
> I looked up the mic on Amazon, and it is a $20 studio look-alike. I’m sure it 
> has a twenty-five cent electret element under all that stuff, but cheap 
> electret mics are very good.
> 
> So it probably is a decent mic and it isn’t too expensive. If you like the 
> look of it and can power it, why not? The detailed info on Amazon says it 
> works with 5 V bias. One reviewer says the response rolls off under 150 Hz, 
> which would be good for communications use.
> 
> https://www.amazon.com/Neewer-Professional-Broadcasting-Recording-Microphone/dp/B00XBQ8UGG/
> 
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
> 
>> On Jul 6, 2018, at 5:16 AM, Bob McGraw K4TAX  wrote:
>> 
>> Operator mike technique is very important with regard to good to great 
>> audio. 
>> 
>> I've found that my $20 Behringer 8500 sounds as good as my $100  Shure SM 
>> 58.  Likewise my $200 Heil PR 781 needs for one to pay special attention to 
>> mike-to-mouth distance in order to control proximity effect. 
>> 
>> Price and type do not assure one of "great audio".  OTOH - I find most hand 
>> mikes supplied with radios sound "plastic" with various resonances and 
>> rattles and squeaks, noticeable on the air. 
>> 
>> Bob, K4TAX
>> 
>> 
>> Sent from my iPhone
>> 
>> On Jul 6, 2018, at 6:48 AM, Charlie T  wrote:
>> 
 This mic is intended for studio and recording work. It is a very poor 
 choice for ham radio.
 
 73, Jim K9YC
>>> 
>>> 
>>> I feel Jim's choice of the term "poor" is correct, but in a monetary sense.
>>> 
>>> Yes, you may be able to get the mike to communications quality with racks of
>>> audio processing equipment etc.,
>>> but you will probably spend more for all that when you add the cost of the
>>> mike, than radio costs by itself.
>>> 
>>> Seem a tad wasteful to me when the radio already has a good EQ and a mike
>>> costing a fraction of the fancy "studio" mike will sound the same on the
>>> other end of the QSO.
>>> 
>>> I don't under the fascination (or logic?) of using a wide response and
>>> expensive microphone just to narrow it down to 300 to 2800 Hz, unless you're
>>> H3LL bent on putting out a 10 kHz wide VOA grade signal that is frankly,
>>> illegal anyway.
>>> 
>>> Yeah, yeah I know,  you're voice is "different" and you need all that stuff
>>> to make it sound "right".
>>> If that's what you want, then by all means go for it.
>>> It's the same logic as using your (insert $200k car) to make daily commuter
>>> runs mostly stuck in traffic.
>>> 
>>> 73, Charlie k3ICH
>>> 
>>> 
>>> 
>>> __
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>>> Message delivered to rmcg...@blomand.net
>>> 
>> 
>> 
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[Elecraft] XG3 SIGNAL GENERATER

[William Sallee]

For sale XG3 signal generater that I  no longer need. It comes with the SUB 
cable and manual. Shipped to you for $200. I bought it in April this year and 
it is a handy device. Text me 619 518 2547

Sent from Yahoo Mail on Android
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Re: [Elecraft] KX3 Temperature Compensation

[Don Wilhelm]

Hans,

While the KX3 is sufficiently stable for FT8 on 160 thru 10 meters, I 
believe it is marginal on 6 meters - but that depends on the power level.


Look at the temperature rise during an FT8 transmission - it should be 
much smaller than your drift from 52C to 38C.


The "cure" for temperature rise during transmit is to reduce the power 
output, or put an aftermarket heatsink on the KX3.


73,
Don W3FPR

On 7/6/2018 6:50 AM, Hans J Rasmusen OZ7BQ via Elecraft wrote:

Hello,
Thanks to Gary of Elecraft I have been able to perform the temperature 
compensation procedure on my KX3, sn 18xx.However, because it is a rather time 
consuming process, I would appreciate advice on when the compensation is good 
enough for FT8 on 6 meters?
My measurements indicate that the frequency drift now is approx. 50 Hz when the 
oscillator temperature increase from 25C to 52C. Most of the drift happens 
between 45C to 52C. As far as I can measure there is about 25 Hz hysteresis 
during cooling down from 52C to 38C (where the stand by temperature stabilize).
I can make FT8 contacts, but 6 M conditions are currently marginal here, so 
performance is difficult to evaluate.
Do I have to do the compensation one more time?
73 OZ7BQ, Hans Jørgen



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Re: [Elecraft] K3S HI SIGNAL

[aj4tf]

Radio is back at Elecraft in que for service. Thanks to all and especially to
N6KR.  You guys rock.

73, David AJ4TF



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[Elecraft] VFO NR

[Sean Hayden]

Hi all,

I have a new to me KX3 that produces VFO dial noise on a few bands.  I see
there is a VFO NR option enabled in tech mode, but the setting is locked
and pressing the freq ent button for 3 seconds doesn't do anything (other
than beep twice).  The serial number of the unit is 968.  I have updated
the firmware to the latest version.

Thanks,
Sean
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[Elecraft] [OT] Legal Data Bandwidths

[Bill Frantz]

[Thread renamed to have some relation to the discussion.]

This rule allows some really interesting options. As I 
understand "symbol rate" it is the rate at which the signal 
changes from one symbol (BAUD) to another. What is not limited 
is the number of bits sent with each symbol.


To present an example I hope never to see on the air, on 15M we 
are permitted to send digital data between 21.0 to 21.2 MHz. 
Someone could come up with a digital mode that used 200 KHz of 
bandwidth and use up all the digital allocation on 15M. It would 
have to remain within the symbol rate limitation, but it could 
send many bits with each symbol. The performance might be quite 
spectacular with the right choice of data rate, forward error 
correction, and error checking.


The ARRL recommended to the FCC that modes be regulated by 
bandwidth, and not just the mode. The FCC said no. However, that 
kind of regulation would solve this problem.


73 Bill AE6JV

On 7/6/18 at 2:10 PM, k6...@foothill.net (Fred Jensen) wrote:

A data transmission could occupy any BW so long as its symbol 
rate remains at or below 300.


---
Bill Frantz| "The only thing we have to   | Periwinkle
(408)356-8506  | fear is fear itself." - FDR  | 16345 
Englewood Ave
www.pwpconsult.com | Inaugural address, 3/4/1933  | Los Gatos, 
CA 95032


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Re: [Elecraft] help wiring a mic?

[hawley, charles j jr]

Good answer. A friend once petitioned the FCC to disallow AM. The answer he got 
from the FCC was that Amateur Radio was an experimental medium and as such, 
disallowing emission types was counterintuitive.

The word experimental tends to question some of the hard and fast rules that 
come up from time to time..

Chuck
 Amateur Radio, KE9UW

From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on 
behalf of Fred Jensen [k6...@foothill.net]
Sent: Friday, July 06, 2018 4:10 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] help wiring a mic?

It depends on the emission type.  From 47CFR97.307:

"(a) No amateur station transmission shall occupy more bandwidth than
necessary for the information rate and emission type being transmitted,
in accordance with good amateur practice."

At 97.307, there follow numerous specific limits on spurious emissions,
limits on various forms of angle modulation, and an [in]famous symbol
rate limit of 300 on data emissions.  Thus:

If you're transmitting voice using AM, an occupied bandwidth of between
5 and 6 KHz would be compliant [nominal 0-2.5 KHz audio BW].  For SSB,
it would be roughly 2.5-3.0 KHz.  If you're transmitting CW, the
occupied bandwidth would need to be something around 0.1 KHz.  A data
transmission could occupy any BW so long as its symbol rate remains at
or below 300.

The rules are a little ambiguous as a result of the phrase, "for the
information rate and emission type being transmitted".  If ESSB is
considered to be an independent emission type, then it is compliant ...
it fills the BW it was intended to.  If it is considered to be a form of
standard, communications-quality SSB, then it may not totally compliant.

73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 7/6/2018 9:16 AM, hawley, charles j jr wrote:
> What is the "legal" bandwidth allowed on amateur radio?
>
> Chuck
> KE9UW
>

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Re: [Elecraft] help wiring a mic?

[W2xj]

True, Wayne

This list has been excessively active over the very long weekend. Also, 
hostility on a number of discussions. Maybe too much holiday cheer?

Sent from my iPad

> On Jul 6, 2018, at 4:31 PM, Wayne Burdick  wrote:
> 
> Overall this is one of the most civilized ham forums out there, or so we’ve 
> been told hundreds of times. 
> 
> But it’s easy for many of us to occasionally get defensive, testy, or even 
> indignant when our long-held beliefs are challenged. Myself included. It 
> doesn’t mean we're not sincerely trying to help.
> 
> The only way people on *any* list can get along is to be forgiving. We’ve all 
> said things we wished we could take back. We feel even worse when things 
> escalate for reasons having nothing to do with the original thread.
> 
> My advice:
> 
> If you’re turning red and slapping the keys hard when you respond to 
> something--on this list, or anywhere else--wait a few minutes. Take a breath. 
> 
> Help us keep things fun and interesting here.
> 
> 73,
> Wayne
> N6KR
> 
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Re: [Elecraft] help wiring a mic?

[Grant Youngman]

Can we please not start the bandwidth discussion (er, wars?), yet again?

Perhaps it’s time to help the poor fellow wire his mic?  Which is all he asked. 
 Maybe we can’t do that.  Fine.  It’ll probably work out of the box.  And even 
if it doesn’t, it’s $20 … for goodness sake.  Cheaper than an Elecraft hand mic 
(which are perfectly good microphones, actually, and have no “plastic" sound to 
them that I’ve ever discerned).

Grant NQ5T
K3 #2091, KX3 #8342

> 
> If you're transmitting voice using AM, an occupied bandwidth of between 5 and 
> 6 KHz would be compliant [nominal 0-2.5 KHz audio BW].  For SSB, it would be 
> roughly 2.5-3.0 KHz.  
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Re: [Elecraft] help wiring a mic?

[Fred Jensen]

It depends on the emission type.  From 47CFR97.307:

"(a) No amateur station transmission shall occupy more bandwidth than 
necessary for the information rate and emission type being transmitted, 
in accordance with good amateur practice."


At 97.307, there follow numerous specific limits on spurious emissions, 
limits on various forms of angle modulation, and an [in]famous symbol 
rate limit of 300 on data emissions.  Thus:


If you're transmitting voice using AM, an occupied bandwidth of between 
5 and 6 KHz would be compliant [nominal 0-2.5 KHz audio BW].  For SSB, 
it would be roughly 2.5-3.0 KHz.  If you're transmitting CW, the 
occupied bandwidth would need to be something around 0.1 KHz.  A data 
transmission could occupy any BW so long as its symbol rate remains at 
or below 300.


The rules are a little ambiguous as a result of the phrase, "for the 
information rate and emission type being transmitted".  If ESSB is 
considered to be an independent emission type, then it is compliant ... 
it fills the BW it was intended to.  If it is considered to be a form of 
standard, communications-quality SSB, then it may not totally compliant.


73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 7/6/2018 9:16 AM, hawley, charles j jr wrote:

What is the "legal" bandwidth allowed on amateur radio?

Chuck
KE9UW



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Re: [Elecraft] help wiring a mic?

[Jim Brown]

On 7/6/2018 12:53 PM, Bill wrote:
Al, you are so right. I have been victimized by some of these folks in 
the past. I asked a question and was flamed on and off list.


My response was NOT a flame. Saving someone $400 dollars is FRIENDLY 
ADVICE, not criticism. I took the trouble to search for a data sheet for 
the mic, found nothing that would even tell me what connector was used, 
what powering configuration it had, or how the mic was wired.


Pro electret mics used a balanced form of powering called "phantom," and 
must work into a circuit that feeds + to both sides of a balanced output 
and negative to the shield. The electret mics used with unbalanced 
inputs get their bias in a very different way. The two systems are NOT 
compatible, and phantom power is built into preamps and mixers. W2IHY 
has built this into his 8-band equalizer. At $299, it's the lowest cost 
box I could find on his website that does it. AND -- if you have a K3, 
K3S, KX2, or KX3 there's a VERY good equalizer built in, so you're 
spending $299 plus shipping on the mic interface.


Bottom line -- with these radios, you don't need anything that W2IHY sells.

If you must use a pro (balanced) electret mic with ham gear, Radio 
Design Labs sells some relatively low cost mic preamps, but by the time 
you buy the preamp and the power supply(ies) you've spent some bucks 
there too.


http://www.rdlnet.com/search.php?searchquery=mic+preamp

But we don't know which powering interface the mic uses -- nothing I've 
found on the internet tells me. IF there is access to the capsule 
itself, it can be wired directly to the KX3 input.


73, Jim K9YC


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Re: [Elecraft] help wiring a mic?

[Wayne Burdick]

Overall this is one of the most civilized ham forums out there, or so we’ve 
been told hundreds of times. 

But it’s easy for many of us to occasionally get defensive, testy, or even 
indignant when our long-held beliefs are challenged. Myself included. It 
doesn’t mean we're not sincerely trying to help.

The only way people on *any* list can get along is to be forgiving. We’ve all 
said things we wished we could take back. We feel even worse when things 
escalate for reasons having nothing to do with the original thread.

My advice:

If you’re turning red and slapping the keys hard when you respond to 
something--on this list, or anywhere else--wait a few minutes. Take a breath. 

Help us keep things fun and interesting here.

73,
Wayne
N6KR

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Re: [Elecraft] help wiring a mic?

[hawley, charles j jr]

I thought that too. Lectures on everything but the tech.

Chuck KE9UW
c-haw...@illinois.edu

Sent from my iPad

> On Jul 6, 2018, at 2:53 PM, Bill  wrote:
> 
> Al, you are so right. I have been victimized by some of these folks in the 
> past. I asked a question and was flamed on and off list. Not a friendly bunch!
> 
> Go to this site, and just a few lines down is your answer (I hope):
> 
> http://www.qsl.net/g4wpw/date.html
> 
> Good luck and best wishes with your new mic. I hope you enjoy it to its 
> fullest.
> 
> Bill W2BLC K-Line
> 
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Re: [Elecraft] help wiring a mic?

[Bill]

Al, you are so right. I have been victimized by some of these folks in 
the past. I asked a question and was flamed on and off list. Not a 
friendly bunch!


Go to this site, and just a few lines down is your answer (I hope):

http://www.qsl.net/g4wpw/date.html

Good luck and best wishes with your new mic. I hope you enjoy it to its 
fullest.


Bill W2BLC K-Line

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Re: [Elecraft] KX3 Using FLDigi to send CW

[Joan via Elecraft]

And, Aaron, all you really need to transmit-by-typing any of of the digital 
text modes integrated into the KX2 firmware (at present: CW, PSK31 & 63, and 
FSK45 [RTTY]) is the KX2 utility (with your computer connected via the ACC 
[RS232 serial] buss) 

I’ve sent CW that way on my Mac—and then had fldigi listening in the background 
passively transcribing both sides of the conversation

Joan KX2CW 


Darmok and Jalad at Tanagra, said Piglet.
Shaka, when the walls fell, said Pooh.

> On Jul 5, 2018, at 16:11, Neil Zampella  wrote:
> 
> Aaron,
> 
> you really don't need the Signalink, just two stereo audio cables (I used the 
> ones in the KX3-PCKT cable set) a good soundcard in your PC or an external 
> USB soundcard, and the KXUSB cable that comes with the KX3.
> 
> This gives you the audio input/output you need, and the CAT control needed.   
>This is the only setup I use with my KX3 for all digital modes.
> 
> 
> Neil, KN3ILZ
> 
> 
>> On 7/5/2018 3:54 PM, Aaron wrote:
>> A year or so ago, someone told me how I can send CW with a KX3 using FLDigi
>> and a SignaLink USB Sound Card. Does someone know how this is
>> accomplished?  I like CW and can decode it pretty decent, however I have a
>> neurological issue that is keeping me from sending.
>> Thank You
>> Aaron K5ATG
>> 
> 
> 
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Re: [Elecraft] help wiring a mic?

[Al Lorona]

The poor guy who started this thread just wanted to know how to wire a mic. It 
quickly became a discussion of whether he should even use that mic. I don't 
believe we have that right. The question is about an XLR connector. We should 
either answer his question or lay out.

Al  W6LX 
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Re: [Elecraft] Expert 1.3 to KX3

[Ignacy]

I used KX3 + 1.3k with Dan's cables during expedition to CE0Y in CQ.  Read
about experiences in CQ Magazine (Oct 2017?).  



--
Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] [KX3] QSO of the week (and a re-learned QRP SSB tip

[Dave New, N8SBE]

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Re: [Elecraft] help wiring a mic?

[Jim Brown]

On 7/6/2018 2:10 AM, Sean Hayden wrote:
This is simply untrue Jim.  Many hams use xlr connected microphones 
with phantom power.  A w2ihy iBox and a cheap behringer mixer will 
quickly disprove your assertion.  I know of many hams that use such 
setups for broadcast AM transmitters moved to amateur radio frequencies.


Just because you can doesn't mean you should. Of course you can throw 
money at the problem by buying these products. A fool and his money are 
easily separated. :)


Very good sounding mics built into gaming headsets like the Yamaha CM500 
and a similar Koss model plug straight into the K3 and KX3 and sound great.


I looked up this mic and tried to find specs. There's nothing there -- 
it's all silly putty.  Every place I looked said something different. 
:)  There's no response graph, not even a description of what connector 
is used and how it is wired!  Inside that mic is a cheap (maybe a buck) 
electret capsule. The shiny enclosure is simply designed to facilitate 
the separation process noted above.


I'm retired from a career in pro audio, A Fellow of the Audio 
Engineering Society, and have a closet full of REAL pro mics that I use 
for recording music. The only one I'd consider using (and have used) for 
ham radio is an RE16, a variable-D dynamic with a good blast filter.  I 
used it because, at the time, I didn't have anything better, because the 
variable-D construction eliminates the LF boost of proximity effect, 
and, because it's a dynamic, all I had to do was solder up a cable to a 
connector that mated with the rig.


List members K4TAX and W4TV are also retired broadcast engineers, and 
I'm sure there are others.


73, Jim K9YC



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[Elecraft] DCS codes with KX3

[Ronnie Hull]

I understand that even width the  2M module in my newly acquired KX3 that it 
can’t generate a DCS code in TX or RX
Dang I can’t use it with my own repeater!
Is this something that can be added in a software upgrade in the future?

Thanks and God bless

Ronnie W5SUM

Sent from my iPhone
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Re: [Elecraft] help wiring a mic?

[hawley, charles j jr]

What is the "legal" bandwidth allowed on amateur radio?

Chuck 
KE9UW

From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on 
behalf of Charlie T [pin...@erols.com]
Sent: Friday, July 06, 2018 6:48 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] help wiring a mic?

> This mic is intended for studio and recording work. It is a very poor
> choice for ham radio.
>
> 73, Jim K9YC


snip
I don't under the fascination (or logic?) of using a wide response and
expensive microphone just to narrow it down to 300 to 2800 Hz, unless you're
H3LL bent on putting out a 10 kHz wide VOA grade signal that is frankly,
illegal anyway.
snip
73, Charlie k3ICH



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Re: [Elecraft] help wiring a mic?

[tnnyswy--- via Elecraft]

 >>> if you like the look of it and can power it, why not? <<<

Walter. Thank you! For approaching the question with an " Open Mind 
"!!!Many, many years ago, over 2000 years since, someone who happens to be 
a whole smarter than I, once said. 
" Religion was made for Man, and not Man for Religion " end of quote! 
Maybe, we should remind ourselves that this is just an Hobby! 
HOBBY - An activity or interest, pursued for pleasure!Hence, lets adopt the 
ETHOS " Ham Radio was made for Man, and not Man for Ham Radio "Just my $0.02 
worth.
(((73))) Milverton / W9MMS.

On Friday, July 6, 2018, 10:05:41 AM CDT, Walter Underwood 
 wrote:  
 
 I looked up the mic on Amazon, and it is a $20 studio look-alike. I’m sure it 
has a twenty-five cent electret element under all that stuff, but cheap 
electret mics are very good.

So it probably is a decent mic and it isn’t too expensive. If you like the look 
of it and can power it, why not? The detailed info on Amazon says it works with 
5 V bias. One reviewer says the response rolls off under 150 Hz, which would be 
good for communications use.

https://www.amazon.com/Neewer-Professional-Broadcasting-Recording-Microphone/dp/B00XBQ8UGG/

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jul 6, 2018, at 5:16 AM, Bob McGraw K4TAX  wrote:
> 
> Operator mike technique is very important with regard to good to great audio. 
> 
> I've found that my $20 Behringer 8500 sounds as good as my $100  Shure SM 58. 
>  Likewise my $200 Heil PR 781 needs for one to pay special attention to 
> mike-to-mouth distance in order to control proximity effect. 
> 
> Price and type do not assure one of "great audio".  OTOH - I find most hand 
> mikes supplied with radios sound "plastic" with various resonances and 
> rattles and squeaks, noticeable on the air. 
> 
> Bob, K4TAX
> 
> 
> Sent from my iPhone
> 
> On Jul 6, 2018, at 6:48 AM, Charlie T  wrote:
> 
>>> This mic is intended for studio and recording work. It is a very poor 
>>> choice for ham radio.
>>> 
>>> 73, Jim K9YC
>> 
>> 
>> I feel Jim's choice of the term "poor" is correct, but in a monetary sense.
>> 
>> Yes, you may be able to get the mike to communications quality with racks of
>> audio processing equipment etc.,
>> but you will probably spend more for all that when you add the cost of the
>> mike, than radio costs by itself.
>> 
>> Seem a tad wasteful to me when the radio already has a good EQ and a mike
>> costing a fraction of the fancy "studio" mike will sound the same on the
>> other end of the QSO.
>> 
>> I don't under the fascination (or logic?) of using a wide response and
>> expensive microphone just to narrow it down to 300 to 2800 Hz, unless you're
>> H3LL bent on putting out a 10 kHz wide VOA grade signal that is frankly,
>> illegal anyway.
>> 
>> Yeah, yeah I know,  you're voice is "different" and you need all that stuff
>> to make it sound "right".
>> If that's what you want, then by all means go for it.
>> It's the same logic as using your (insert $200k car) to make daily commuter
>> runs mostly stuck in traffic.
>> 
>> 73, Charlie k3ICH
>> 
>> 
>> 
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> 
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Re: [Elecraft] KX3 Using FLDigi to send CW

[Neil Zampella]

Only answering the gentleman's question ... there may be a perfectly 
good reason he doesn't want to use the KX3 utility, as FLDidgi does a 
lot of digital modes.


Neil, KN3ILZ


On 7/5/2018 9:31 PM, Bill Rowlett wrote:
Yes, but why bother with FLDidgi when it is not needed for CW, RITTY 
or PSK. Keep it simple.


73 and good DX

KC4IM

On Jul 5, 2018, at 9:27 PM, Neil Zampella > wrote:


Bill,

true, but he was asking about FLDidgi to send CW ...

Neil, KN3ILZ


On 7/5/2018 9:25 PM, Bill Rowlett wrote:
With the Elecraft USB cable, your computer, you send CW from your 
keyboard. The beauty of the KX3.



On Jul 5, 2018, at 7:11 PM, Neil Zampella > wrote:


Aaron,

you really don't need the Signalink, just two stereo audio cables 
(I used the ones in the KX3-PCKT cable set) a good soundcard in 
your PC or an external USB soundcard, and the KXUSB cable that 
comes with the KX3.


This gives you the audio input/output you need, and the CAT control 
needed.  This is the only setup I use with my KX3 for all 
digital modes.



Neil, KN3ILZ


On 7/5/2018 3:54 PM, Aaron wrote:
A year or so ago, someone told me how I can send CW with a KX3 
using FLDigi

and a SignaLink USB Sound Card. Does someone know how this is
accomplished?  I like CW and can decode it pretty decent, however 
I have a

neurological issue that is keeping me from sending.
Thank You
Aaron K5ATG


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07/05/18


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[Elecraft] FS: XV-50 6 meter transverter

[Mike Keller]

Selling my XV-50 transverter that I used with my K2. 
Has been on the shelf since I added the K3S. (Keeping K2 of course!)
I am the original owner and it is in Excellent condition
$235 plus postage from MA or local delivery/pickup

73
Mike W1BNC

Sent from Mail for Windows 10

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Re: [Elecraft] help wiring a mic?

[Walter Underwood]

I looked up the mic on Amazon, and it is a $20 studio look-alike. I’m sure it 
has a twenty-five cent electret element under all that stuff, but cheap 
electret mics are very good.

So it probably is a decent mic and it isn’t too expensive. If you like the look 
of it and can power it, why not? The detailed info on Amazon says it works with 
5 V bias. One reviewer says the response rolls off under 150 Hz, which would be 
good for communications use.

https://www.amazon.com/Neewer-Professional-Broadcasting-Recording-Microphone/dp/B00XBQ8UGG/

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Jul 6, 2018, at 5:16 AM, Bob McGraw K4TAX  wrote:
> 
> Operator mike technique is very important with regard to good to great audio. 
> 
> I've found that my $20 Behringer 8500 sounds as good as my $100  Shure SM 58. 
>  Likewise my $200 Heil PR 781 needs for one to pay special attention to 
> mike-to-mouth distance in order to control proximity effect. 
> 
> Price and type do not assure one of "great audio".  OTOH - I find most hand 
> mikes supplied with radios sound "plastic" with various resonances and 
> rattles and squeaks, noticeable on the air. 
> 
> Bob, K4TAX
> 
> 
> Sent from my iPhone
> 
> On Jul 6, 2018, at 6:48 AM, Charlie T  wrote:
> 
>>> This mic is intended for studio and recording work. It is a very poor 
>>> choice for ham radio.
>>> 
>>> 73, Jim K9YC
>> 
>> 
>> I feel Jim's choice of the term "poor" is correct, but in a monetary sense.
>> 
>> Yes, you may be able to get the mike to communications quality with racks of
>> audio processing equipment etc.,
>> but you will probably spend more for all that when you add the cost of the
>> mike, than radio costs by itself.
>> 
>> Seem a tad wasteful to me when the radio already has a good EQ and a mike
>> costing a fraction of the fancy "studio" mike will sound the same on the
>> other end of the QSO.
>> 
>> I don't under the fascination (or logic?) of using a wide response and
>> expensive microphone just to narrow it down to 300 to 2800 Hz, unless you're
>> H3LL bent on putting out a 10 kHz wide VOA grade signal that is frankly,
>> illegal anyway.
>> 
>> Yeah, yeah I know,  you're voice is "different" and you need all that stuff
>> to make it sound "right".
>> If that's what you want, then by all means go for it.
>> It's the same logic as using your (insert $200k car) to make daily commuter
>> runs mostly stuck in traffic.
>> 
>> 73, Charlie k3ICH
>> 
>> 
>> 
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Re: [Elecraft] RFI Snapshots...

[Dave Cole (NK7Z)]

That is a very good idea, and I have, and if I get sound with an SDR 
image, I add it to the site...


As you said though, bandwidth, etc., tend to make things sound different 
depending on who uploads.  The real useful thing about the spectrograms 
are that they can be used as a site survey tool as well.  The snapshot 
page was basically and offshoot of this page:


https://www.nk7z.net/sdr-rfi-survey-p1/

which uses an SDRPlay RSP-1 as the SDR engine for a way to characterize, 
or survey your RFI environment.


I ended up with a lot of spectrograms as a result of the site survey 
page, and it occurred to me they might be useful to others in IDing 
RFI...  Now there are almost fifty different shots of RFI there.


73s and thanks,
Dave
NK7Z
https://www.nk7z.net

On 07/06/2018 05:18 AM, Al Scanandoah wrote:

Dave

Have you considered including sound clips with the snapshots as well? 
Being able to see *and* hear the RFI can go a long way toward making a 
positive ID. Of course, RX mode and bandwidth info would need to be 
included as well.


73 - Al, K2ZN

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[Elecraft] KAT500 "Last Observed" "Tune State"

[ANDY DURBIN]

"What do the numbers displayed after the Tune State mean? "


If this was answered I missed it.  Where can I find the "decoder" for KAT500 
Utility "Tune State".  I thought I could solve it by experiment but not been 
able to yet.


Thanks and 73,

Andy k3wyc
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Re: [Elecraft] RFI Snapshots...

[Al Scanandoah]

Dave

Have you considered including sound clips with the snapshots as well? 
Being able to see *and* hear the RFI can go a long way toward making a 
positive ID. Of course, RX mode and bandwidth info would need to be 
included as well.


73 - Al, K2ZN



On 7/5/2018 4:22 PM, Dave Cole (NK7Z) wrote:
I have compiled a set of snapshots of various RFI sources from a 
number of folks that were kind enough to send them in to me.  They are 
at:


https://www.nk7z.net/rfi-snapshots/

There are close to 50 different images showing various sources there...

I am always looking for a P3 image of RFI of a KNOWN source...


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Re: [Elecraft] help wiring a mic?

[Bob McGraw K4TAX]

Operator mike technique is very important with regard to good to great audio. 

I've found that my $20 Behringer 8500 sounds as good as my $100  Shure SM 58.  
Likewise my $200 Heil PR 781 needs for one to pay special attention to 
mike-to-mouth distance in order to control proximity effect. 

Price and type do not assure one of "great audio".  OTOH - I find most hand 
mikes supplied with radios sound "plastic" with various resonances and rattles 
and squeaks, noticeable on the air. 

Bob, K4TAX


Sent from my iPhone

On Jul 6, 2018, at 6:48 AM, Charlie T  wrote:

>> This mic is intended for studio and recording work. It is a very poor 
>> choice for ham radio.
>> 
>> 73, Jim K9YC
> 
> 
> I feel Jim's choice of the term "poor" is correct, but in a monetary sense.
> 
> Yes, you may be able to get the mike to communications quality with racks of
> audio processing equipment etc.,
> but you will probably spend more for all that when you add the cost of the
> mike, than radio costs by itself.
> 
> Seem a tad wasteful to me when the radio already has a good EQ and a mike
> costing a fraction of the fancy "studio" mike will sound the same on the
> other end of the QSO.
> 
> I don't under the fascination (or logic?) of using a wide response and
> expensive microphone just to narrow it down to 300 to 2800 Hz, unless you're
> H3LL bent on putting out a 10 kHz wide VOA grade signal that is frankly,
> illegal anyway.
> 
> Yeah, yeah I know,  you're voice is "different" and you need all that stuff
> to make it sound "right".
> If that's what you want, then by all means go for it.
> It's the same logic as using your (insert $200k car) to make daily commuter
> runs mostly stuck in traffic.
> 
> 73, Charlie k3ICH
> 
> 
> 
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> 


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Re: [Elecraft] KX2, is the ATU activated when you key the mic?

[rich hurd WC3T]

There's a lot to consider in a transmission line system, and SWR is only a
small piece.   I think that given Elecraft's design conservatism, the rig
would have self-protected if there was a risk of letting the magic smoke
out.

On Fri, Jul 6, 2018 at 00:04 usmcss  wrote:

> Thank you Rich! So my understand that from this info I can say that no harm
> was done because in the scenario the swr was 9.3:1
>
> Thanks!
>
>
>
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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>
-- 
72,
Rich Hurd / WC3T / DMR: 3142737
PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
*FN20is*
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Re: [Elecraft] help wiring a mic?

[Charlie T]

> This mic is intended for studio and recording work. It is a very poor 
> choice for ham radio.
>
> 73, Jim K9YC


I feel Jim's choice of the term "poor" is correct, but in a monetary sense.

Yes, you may be able to get the mike to communications quality with racks of
audio processing equipment etc.,
but you will probably spend more for all that when you add the cost of the
mike, than radio costs by itself.

Seem a tad wasteful to me when the radio already has a good EQ and a mike
costing a fraction of the fancy "studio" mike will sound the same on the
other end of the QSO.

I don't under the fascination (or logic?) of using a wide response and
expensive microphone just to narrow it down to 300 to 2800 Hz, unless you're
H3LL bent on putting out a 10 kHz wide VOA grade signal that is frankly,
illegal anyway.

Yeah, yeah I know,  you're voice is "different" and you need all that stuff
to make it sound "right".
If that's what you want, then by all means go for it.
It's the same logic as using your (insert $200k car) to make daily commuter
runs mostly stuck in traffic.

73, Charlie k3ICH



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[Elecraft] KX3 Temperature Compensation

[Hans J Rasmusen OZ7BQ via Elecraft]

Hello,
Thanks to Gary of Elecraft I have been able to perform the temperature 
compensation procedure on my KX3, sn 18xx.However, because it is a rather time 
consuming process, I would appreciate advice on when the compensation is good 
enough for FT8 on 6 meters?
My measurements indicate that the frequency drift now is approx. 50 Hz when the 
oscillator temperature increase from 25C to 52C. Most of the drift happens 
between 45C to 52C. As far as I can measure there is about 25 Hz hysteresis 
during cooling down from 52C to 38C (where the stand by temperature stabilize).
I can make FT8 contacts, but 6 M conditions are currently marginal here, so 
performance is difficult to evaluate.
Do I have to do the compensation one more time?
73 OZ7BQ, Hans Jørgen



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Re: [Elecraft] help wiring a mic?

[Sean Hayden]

This is simply untrue Jim.  Many hams use xlr connected microphones with
phantom power.  A w2ihy iBox and a cheap behringer mixer will quickly
disprove your assertion.  I know of many hams that use such setups for
broadcast AM transmitters moved to amateur radio frequencies.

On Fri, Jul 6, 2018 at 12:51 AM Jim Brown  wrote:

> On 7/5/2018 3:27 PM, Schumacher, Paul wrote:
> > I have a Neewer NW 800 mic that I want to use with a KX3.
>
> This mic is intended for studio and recording work. It is a very poor
> choice for ham radio.
>
> 73, Jim K9YC
>
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