Re: [Elecraft] OT Learning Morse anew

[Erik Basilier]

I learned morse by copying from 78 rpm phongraph records, gradually
increasing the speed, but I believe modern methods based of Farnsworth are
far superior. 

My club asked me to think about how the club could conduct cw training. I
searched for resources online, and was very impressed when I found the cwops
program some time ago. Students must participate in a series of lessons
where they each both receive and transmit, always at 20 wpm, but with extra
space between characters a la Farnsworth. 3 courses are conducted each year,
via Skype, with students from around the globe. You can easily find that out
online, but here is some additional detail. I asked cwops if they would let
me teach their curriculum locally to our club members, with a time schedule
of our own choosing, and over an FM repeater rather than Skype. The answer
was yes. So, if their schedule doesn't fit you, do ask them, and maybe you
can get something going with your club. Neither instructor nor students need
to be or become cwops members. So far, nothing has come of these ideas in my
club. The requirements that students obtain paddles and keyers suitable for
sending at 20 wpm, and commit to attend the full series of lessons, may be a
strumbling block. Nevertheless I think the program looks great, and I would
be very interested to hear about the experiences of others that have
actually used the cwops program. 

Another thought: For copy practice, you want to listen to speeds faster than
what you are currently comfortable with. That can be frustrating if there is
no way to compare what you caught with the full and correct text. Here is a
way to get that access to the corect answer. Participate in a contest such
as Field Day, where a given station's exchange is the same for every qso.
Find a station using the desired speed that is running CQ on a frequency.
Listen to a few of his qso's until you have copied his callsign and exchange
information (something like 3A SFL, which stands for class 3A in the Section
of South Florida; you should already know the corresponding info for your
own station). Once you are at that point, give him a call when he is done
with a qso. You know that it is time to call him when he sends something
like QRZ or FD or CONTEST. Don't send his callsign, only your own, and don't
bother with K or BK or variations thereof. It is ok to send at a lower speed
as long as you don't send any unneeded info in addition to your callsign.
Once you hear him send your callsign, send your own exchange information.
Etc.  Repeats are often requested by AGN (send it all again) or CLS (send
your class) or SEC (send your section). The qso is over when both stations
have sent R or QSL or some equivalent. The whole qso is so short that you
don't need to send your own callsign again at the end; when you sent it at
the beginning, that also counts as the end. The fact that you can take
plenty of time to copy his information, and that the information is short
and follows a predictable pattern, makes you comfortable communicating at a
speed higher than your normal capability, and meanwhile your brain is
getting used to the sound of high speed morse. 

73,
Erik K7TV

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dgb
Sent: Sunday, June 11, 2017 3:37 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] OT Learning Morse anew

Yes, the best is

http://www.cwops.org/cwacademy.html

73 Dwight NS9I


On 6/11/2017 5:25 PM, Jim Sr Sturges wrote:
> I think I learned code all wrong. Can't ever seem to get my speed up.
>
> Surely some of the astute among you _know_ The Perfect Method, and I 
> hope you will share?
>
> To complete the OT-ness of this msg, I recently completed the QRP Labs 
> Ultimate WSPR/QRSS kit and re-learned the joys of soldering iron 
> burns, again. Certainly nothing wrong with Hans' excellent kits, and 
> the price is amazing for the functionality, design, and quality.
>
> Then I installed the PAE heat sink end panels on my KX2. The latter is 
> not for the faint of heart! I STRONGLY recommend the somewhat buried 
> hint in PAE's instructions to remove the AT board before attaching the 
> PA transistors to the heat sink. Tried it the other way and 
> re-discovered that my micromanipulation skills are right up there with 
> my CW -- maybe better, which is damned depressing.
>
> So, any help mastering Morse?
>
> Thanks in advance and 73,
>
> Jim N3SZ
>

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Re: [Elecraft] mic - David Clark

[Wes Stewart]

I have and have used a David Clark H10-30 headset on my TS870.  The microphone 
element is an amplified dynamic.  I don't recall what the original mic connector 
was; I cut if off and used the Kenwood standard 8-pin.  The headphones use a 
standard 1/4" mono plug.  I always got good audio reports but then I was using a 
TS870.


I have some documentation around here some place but I can say a gentleman at 
David Clark was very helpful and sent me plenty of information.


The main problem for me was that the phones really clamp your head and they're 
pretty heavy, which can get tiring.


Wes  N7WS

6/11/2017 2:44 PM, Fred Jensen wrote:
Hmmm ... I've had it for several years and it saw some use before I got it but 
I doubt it's old enough to be a carbon mic like the WW2 T-17.


I just assumed the "noise cancelling" part applied to the headphones.  I 
didn't know it might apply to the mic.  There's no external noise in my shack 
to cancel anyway.


The connector is round and the contacts stick out of the face.  I think there 
are 6, maybe Headphones, Mic, and PTT?  There's a push-switch in the cable.  
It looks like the connector fits over the panel connector and you twist is to 
lock it ... like a BNC.  I don't think the headphones are stereo which is a 
big negative with my K3.


I was just curious.  This sounds like a project for some time when I have 
exactly nothing else to do. [:-)  Thanks for the info


73,

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


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Re: [Elecraft] mic

[Walter Underwood]

I was only talking about the ear portions of the CM500. Those are still not 
outstanding. Did I even suggest that there was a mic on the Grado headphones?

If you want to add an electret boom mic to your favorite headphones, use a 
ModMic.

https://antlionaudio.com/ 

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

> On Jun 11, 2017, at 7:55 PM,   wrote:
> 
> I have not tired the Yamaha CM500 but if I recall correctly it does not have
> any replaceable parts. Where is the mic on the Grado SR-60?  For mic-less
> contests I use the Sony MDR 7506 that K9YC recommends and I could not be
> happier.
> 
> John KK9A
> 
> 
> Walter Underwood wrote: 
> Sun Jun 11 19:28:53 EDT 2017
> 
> Not sure I'd rate the Yamaha CM500 headset drivers as "outstanding". When my
> Grado SR-60 headphones died (after 15 years), I tried using the CM500 for
> music. That idea lasted about a day before I ordered new Grado phones. The
> current SR60e model is $80, so not that different from the Yamaha in terms
> of cost.
> 
> The CM500 is perfectly fine for voice communication work.
> 
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
> 
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[Elecraft] mic

[john]

I have not tired the Yamaha CM500 but if I recall correctly it does not have
any replaceable parts. Where is the mic on the Grado SR-60?  For mic-less
contests I use the Sony MDR 7506 that K9YC recommends and I could not be
happier.

John KK9A


Walter Underwood wrote: 
Sun Jun 11 19:28:53 EDT 2017

Not sure I'd rate the Yamaha CM500 headset drivers as "outstanding". When my
Grado SR-60 headphones died (after 15 years), I tried using the CM500 for
music. That idea lasted about a day before I ordered new Grado phones. The
current SR60e model is $80, so not that different from the Yamaha in terms
of cost.

The CM500 is perfectly fine for voice communication work.

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

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Re: [Elecraft] 6m off-frequency

[Ron D'Eau Claire]

On my few excursions into SSB land, I've actually had operators answer my CQ
saying I was "off frequency" because I was not aligned exactly on some
multiple of 500 kHz. 

I apologize for any confusion and state that I am on XXX.440 or some similar
"non 500" frequency. And then return to CW. 

I do remember the days of a 10 minute long CQ followed by ten more minutes
of tuning across the Novice band looking for an answer. I often miss those
days and the ops I met back then. 

73, Ron AC7AC


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Rhodes
Sent: Sunday, June 11, 2017 6:10 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] 6m off-frequency

...would certainly be interesting to set those operators who tune for the
"zeros" down in front of a vintage rig with a tuning dial - although I think
Erik alluded to that a bit in his post. Better yet, how about a stint in the
crystal controlled Novice band where you tuned from one end of the band to
the other in search of an answer to your call.

Mike / W8DN
Yes, a crusty OT

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Re: [Elecraft] mic

[Dwayne Rohmer]

Skip,

I converted an '80's era H10-40A David Clark aviation headset. Adapting 
it for use with the K3 required a complete rebuild. The microphone isn't 
the only issue. The headband, domes, and mike boom can be salvaged, but 
you may want to consider replacing the remaining parts.


The original aviation spec microphone is not a good match for amateur 
radio. Consider replacment with an Acousticom 5730-CA electret, a 
communications mike that works well with the K3. It's an easy fit to the 
David Clark wire boom, not expensive, and produces good audio with TX EQ 
settings set to "0".


The original earphones were wired for 150 ohms (300 ohms each, wired in 
parallel, mono audio). They were replaced with original David Clark 19 
ohm, Part# 10376G-30, available on ebay for $12.00 each. The earphone 
frequency response is 200 - 5500 Hz, excellent for CW and SSB, forget 
the ipod.


To use the two speaker output of the K3, you'll have to replace the 
original headset wiring to provide separate audio to each earphone. 
Acousticom also has a wire assembly with microphone wires and stereo 
speaker wires in one outer jacket, separated on one end to attach two 
3.5mm plugs that you need for the K3.


The original foam ear seals were broken down from age. They didn't seal 
well, and extended wear caused ear pain. They were replaced with the gel 
filled type.  Gel seals won't compress, are more comfortable, and 
provide a better seal from noise.


I wouldn't recommend this if you have to purchase an old headset, but if 
you already have one and want to put it to use, the rebuild may be worth 
considering. When you get done, you'll have a decent headset that can be 
used in a noisy environment.


73,

Dwayne WV5I


On 6/11/2017 3:29 PM, Fred Jensen wrote:
Just curious ... I inherited a David Clark noise cancelling aviation 
headset/mic from a neighbor who was a US Forest Service pilot. I've 
never tried it, the connector is strange.  I'm not even sure I know 
where it is right now.  Will it work with my K3 if I can find it and 
get the connector compatible?  I know they're expensive.


Maybe it will cancel the powerline noise on 80? [:-))

73,

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

On 6/11/17 12:55 PM, Joe Subich, W4TV wrote:


On 6/11/2017 2:45 PM, kevino z wrote:

Although headsets like my Heil Pro 7 may be more money, am I really
"wasting" money on buying a "fancy brand name"  considering the
unit consists of mic and incredible speakers?


Yes, at about $250 retail (plus adapter cable), the Pro 7 is more than
five times as expensive as the Yamaha CM-500 (electret mic), Koss SB40
(dynamic mic) or SB45 (electret mic) headsets.   Both the Yamaha and
Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
rated at 96dB/mW and microphones well tailored for voice work. Heil
does not even publish the impedance or sensitivity for their headset
drivers!

For the price of a Heil Pro 7 one could get a Broadcast headset like
the Audio Technica BPHS1 ($199), Sennheiser HMD280 ($249) or Shure
BRH440M ($249) - all of which are significantly higher quality than
the Pro7 (and field proven).

73,

   ... Joe, W4TV


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Re: [Elecraft] mic - David Clark

[Randy Farmer]

This thread has drifted into a discussion of headsets, so I'll throw in 
my 2 cents worth and QRT. I realize they're pricey, but I use and love 
the Radiosport headsets. I have both a RS-60CF headset with the electret 
mic element and a RS-20 receive-only headset. When properly adjusted 
both are extremely comfortable -- they're the only phones I've ever used 
that I can wear for a full contest weekend over my glasses with no 
problem whatsoever. They're NOT hi-fi phones; my understanding is that 
they were originally designed for auto racing pit communications, and 
the transducers are tailored for voice communication. They also have 
superb isolation from outside noise, somewhere around 28 dB. I can't 
hear the phone on my radio desk ring when I have them on. I also have a 
Yamaha CM-500 set, and the Radiosports blow them away, as well they 
should at almost 5X the price. For me, the substantial price difference 
is worth every cent. YMMV.


73...
Randy, W8FN

On 6/11/2017 8:32 PM, John Severyn wrote:

Hi Fred,
Aviation headsets come with a variety of mikes, some dynamic, but most
today are electret.  "Noise Cancelling" in aviation lingo usually means
some sort of seal over or in the ear.  "Electronic Noise Cancelling"
means the earpieces have active noise cancelling circuitry in addition
to the ear-seal.  (the seal can be over the ear or in the ear, like a
hearing aid, but most David Clark models are "over the ear").  The
microphone is also most probably of a noise cancelling design.

The David Clark line is considered to be fairly high quality and has
been around for a long time, since 1941.  They make a wide variety of
gear, from G-suits, high altitude pressure suits, helmets, headsets etc.

http://www.davidclarkcompany.com/aviation/fixed-wing-passive.php

Various connectors are available, from LEMO to larger phone jacks and
some specialized models.

The above link is for their present line of fixed wing headsets.  I have
several pairs of older H10-40 units, no longer made.  The mike is a
electret with very good noise cancelling and made to perform in a very
high noise environment, with passive noise reduction, over the ear
seals.  Fidelity is not the goal.  Voice communication in a very high
noise environment of a piston engine propellor aircraft is the goal.

Other models are made for helicopter use (different connector became
standard in helicopters).

No connection to David Clark.  Just a satisfied customer.

73
John AF6QO

On 6/11/2017 2:44 PM, Fred Jensen wrote:

Hmmm ... I've had it for several years and it saw some use before I got
it but I doubt it's old enough to be a carbon mic like the WW2 T-17.

I just assumed the "noise cancelling" part applied to the headphones.  I
didn't know it might apply to the mic.  There's no external noise in my
shack to cancel anyway.

The connector is round and the contacts stick out of the face.  I think
there are 6, maybe Headphones, Mic, and PTT?  There's a push-switch in
the cable.  It looks like the connector fits over the panel connector
and you twist is to lock it ... like a BNC.  I don't think the
headphones are stereo which is a big negative with my K3.

I was just curious.  This sounds like a project for some time when I
have exactly nothing else to do. [:-)  Thanks for the info

73,

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

On 6/11/17 1:51 PM, Jack Spitznagel wrote:

Fred,

I have a widget that adapts a Sennheiser S1 av-noise canceler to my
KX3. Use it for hi noise situations and it works like charm, even
Massey-Ferguson mobile.🙂
Try it with the David Clarks.
Was connector a mismatched size pair of phone jacks or a complex
military looking connector?

Jack -KD4IZ



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Re: [Elecraft] mic

[Dwight Anderson]

Hello Fred;

I did not find much information on the web about using aviation headsets on
ham radios.   However if you search for using these headsets with gamming
computers, there is a lot more information.

Eventually I found the following information.

I was surprised how much I like the noise cancellation and the quality of
the sound.  I have a window fan running in my shack in the summer. 

I found the following adapter that worked for my KX3 and a Bose Aviation
headset.  At least for my headset the noise cancelation is only the
earphones not the microphone.  


http://www.sportys.com/pilotshop/general-aviation-twin-plugs-to-pc-headset-a
dapter.html?___SID=U

http://www.pilotshop.com/catalog/pspages/pilotUSA40.php

or here

I did find a schematic on the web but never tried to build it.

https://www.flightsim.com/vbfs/content.php?1985-How-ToAdapt-Aviation-Headset
s-To-Computers

Much Regards
Dwight
WM5F

snip **
Just curious ... I inherited a David Clark noise cancelling aviation
headset/mic from a neighbor who was a US Forest Service pilot.  I've never
tried it, the connector is strange.  


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Re: [Elecraft] mic - David Clark

[John Severyn]

Hi Fred,
Aviation headsets come with a variety of mikes, some dynamic, but most 
today are electret.  "Noise Cancelling" in aviation lingo usually means 
some sort of seal over or in the ear.  "Electronic Noise Cancelling" 
means the earpieces have active noise cancelling circuitry in addition 
to the ear-seal.  (the seal can be over the ear or in the ear, like a 
hearing aid, but most David Clark models are "over the ear").  The 
microphone is also most probably of a noise cancelling design.

The David Clark line is considered to be fairly high quality and has 
been around for a long time, since 1941.  They make a wide variety of 
gear, from G-suits, high altitude pressure suits, helmets, headsets etc.

http://www.davidclarkcompany.com/aviation/fixed-wing-passive.php

Various connectors are available, from LEMO to larger phone jacks and 
some specialized models.

The above link is for their present line of fixed wing headsets.  I have 
several pairs of older H10-40 units, no longer made.  The mike is a 
electret with very good noise cancelling and made to perform in a very 
high noise environment, with passive noise reduction, over the ear 
seals.  Fidelity is not the goal.  Voice communication in a very high 
noise environment of a piston engine propellor aircraft is the goal.

Other models are made for helicopter use (different connector became 
standard in helicopters).

No connection to David Clark.  Just a satisfied customer.

73
John AF6QO

On 6/11/2017 2:44 PM, Fred Jensen wrote:
> Hmmm ... I've had it for several years and it saw some use before I got 
> it but I doubt it's old enough to be a carbon mic like the WW2 T-17.
> 
> I just assumed the "noise cancelling" part applied to the headphones.  I 
> didn't know it might apply to the mic.  There's no external noise in my 
> shack to cancel anyway.
> 
> The connector is round and the contacts stick out of the face.  I think 
> there are 6, maybe Headphones, Mic, and PTT?  There's a push-switch in 
> the cable.  It looks like the connector fits over the panel connector 
> and you twist is to lock it ... like a BNC.  I don't think the 
> headphones are stereo which is a big negative with my K3.
> 
> I was just curious.  This sounds like a project for some time when I 
> have exactly nothing else to do. [:-)  Thanks for the info
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
> On 6/11/17 1:51 PM, Jack Spitznagel wrote:
>> Fred,
>>
>> I have a widget that adapts a Sennheiser S1 av-noise canceler to my 
>> KX3. Use it for hi noise situations and it works like charm, even 
>> Massey-Ferguson mobile.🙂
>> Try it with the David Clarks.
>> Was connector a mismatched size pair of phone jacks or a complex 
>> military looking connector?
>>
>> Jack -KD4IZ
>>
>>
> 
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Re: [Elecraft] 6m off-frequency

[Mike Rhodes]

...would certainly be interesting to set those operators who tune for 
the "zeros" down in front of a vintage rig with a tuning dial - although 
I think Erik alluded to that a bit in his post. Better yet, how about a 
stint in the crystal controlled Novice band where you tuned from one end 
of the band to the other in search of an answer to your call.


Mike / W8DN
Yes, a crusty OT

On 6/11/2017 5:41 PM, Erik Basilier wrote:

Ian,

I don't have any suggestions for a solution beyond what others have already
mentioned, but as a side note I would like to discuss the concept of "off
frequency".

It seems to me that these days, on the HF bands that I frequent, more and
more people tune SSB to where the displayed frequency is on an 500 Hz
boundary, and their rigs have sufficient frequency accuracy that excellent
copyability results without any further adjustment. This approach is much
faster than tuning by listening for most natural voice, which for me takes a
few moments. When I look over the shoulder of operators at Field Day, a
surprising percentage of people take a long time trying to tune for natural
voice, and still don't end up even close to correct tuning, so they should
be helped even more by just "going for the zeroes". While I haven't used 6m
recently, I would guess that the "zeroes" approach has become common there,
although the average rig may not be as frequency-accurate there as it would
be on the lower bands. Further to how to tune in other stations quickly, I
just found another way to minimize SSB tuning time when scanning the bands.
I configured the K3 to use the RIT knob to act as a coarse tuning knob
(CONFIG: VFO OFS), with 500 Hz steps (CONFIG: VFO CRS). I also set the main
tuning knob to a 500 Hz boundary. After setting things up this way, I use
the P3 with a span of +- 25 kHz to identify the next SSB station up or down
the band, then turn the RIT knob to put the passband over it. That puts me
close enough that only one more 500 Hz step will tune to perfect voice
clarity, and many times I will be tuned perfectly with no adjustment at all.
Much, much faster than cranking the VFO knob, first to approximate frequency
and then fine adjustment by listening. Occasionally it happens that the
station is not on a 500 Hz boundary, and I have to turn on RIT and fine
adjust by the RIT knob. Then I will usually soon hear that the station
saying that he is using an older rig. That is becoming rather rare, though.
After I am finished listening to the "off frequency" station, I just turn
off the RIT, and the RIT knob lets me tune in the next station quickly using
500 Hz steps, while leaving the main tuning knob alone. Now tuning SSB
stations is a bit like tuning FM "channels". I am not advocating
"channelizing" the HF bands, as we should have the freedom to select our
frequenciy according to the situation, but a lot of times, using a frequency
ending in zeroes saves time and effort.

73,
Erik K7TV

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ian Kahn
Sent: Sunday, June 11, 2017 8:46 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] 6m off-frequency

All,

I've been operating a little in the ARRL VHF contest this weekend, on 6m,
and I'm having an interesting, and not good, experience. Everyone I try to
work is reporting that I'm off frequency by about 500 Hz. I don't have
RIT/XIT enabled. My K3, s/n 281, went to Elecraft earlier this year for some
upgrades and a tune-up, and came back with a clean bill of health and
meets/exceeds specs.

I admit, I am new to 6m operation, but this constant report of being
off-frequency concerns me. Is there some calibration step, specific to 6m,
that I missed? I don't get this report on any other band, and have never
gotten it in over 6 years of operating this rig. My assumption is that if it
came back from the Mother Ship clean, and I've never used 6m before, that it
should be properly calibrated.

Any guidance/advice is greatly appreciated.

Thanks and 73,

--Ian
Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624  North Georgia Chapter #2038 PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468
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Re: [Elecraft] mic

[Brian Denley]

I agree on the Koss.  It cost me less than $40 and audio reports are all good.  
BTW, I also like my old Astatic 10DA on SSB.

Brian 
KB1VBF
Sent from my iPad

> On Jun 11, 2017, at 3:55 PM, Joe Subich, W4TV  wrote:
> 
> 
>> On 6/11/2017 2:45 PM, kevino z wrote:
>> Although headsets like my Heil Pro 7 may be more money, am I really
>> "wasting" money on buying a "fancy brand name"  considering the
>> unit consists of mic and incredible speakers?
> 
> Yes, at about $250 retail (plus adapter cable), the Pro 7 is more than
> five times as expensive as the Yamaha CM-500 (electret mic), Koss SB40
> (dynamic mic) or SB45 (electret mic) headsets.   Both the Yamaha and
> Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
> rated at 96dB/mW and microphones well tailored for voice work.  Heil
> does not even publish the impedance or sensitivity for their headset
> drivers!
> 
> For the price of a Heil Pro 7 one could get a Broadcast headset like
> the Audio Technica BPHS1 ($199), Sennheiser HMD280 ($249) or Shure
> BRH440M ($249) - all of which are significantly higher quality than
> the Pro7 (and field proven).
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
>> On 6/11/2017 2:45 PM, kevino z wrote:
>> Although headsets like my Heil Pro 7 may be more money, am I really 
>> "wasting" money on buying a "fancy brand name"  considering the unit 
>> consists of mic and incredible speakers? It is a complete package. Besides 
>> the amazing electret mic, the sound from the headphones helps me to enjoy 
>> the hobby more and allows me to pick out signals I would not be able to 
>> without them. I don't think you meant to, but your post came off as if we 
>> bought some snake oil.
>> -Kevin (KK4YEL)
>> No trees were killed in the sending of this message. However, a large number 
>> of electrons were terribly inconvenienced !
>>> On Jun 11, 2017, at 10:41, Joe Subich, W4TV  wrote:
>>> 
>>> 
>>> Bob and Jim have excellent points.
>>> 
>>> There is one advantage for the electret mic compared to a dynamic
>>> mic.  Electrets are generally 26 dB "hotter" than a dynamic mic
>>> and thus are much more resistant to common mode RF feedback and
>>> magnetic coupling.  However, that assumes the transceiver is

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Re: [Elecraft] OT Learning Morse anew

[Rod Hardman(VA3ON)]

Jim 
I'll endorse your experience with the installation PAE's excellent heatsink for 
the KX2.
I jumped into that operation with a Swiss Army knife and a set of forceps at 
the hotel while at Dayton hamvention. 
Holding on the two washers, nut and bolt simultaneously in a confined space is 
playing "Twister" with your fingers!
That said, I love the kit - combined with the Lexan cover, the kit is both 
functional and attractive.
Fun to get an installation challenge from time to time!!
/Rod VA3ON

On Jun 11, 2017, at 18:25, Jim Sr Sturges  wrote:

I think I learned code all wrong. Can't ever seem to get my speed up.

Surely some of the astute among you _know_ The Perfect Method, and I hope
you will share?

To complete the OT-ness of this msg, I recently completed the QRP Labs
Ultimate WSPR/QRSS kit and re-learned the joys of soldering iron burns,
again. Certainly nothing wrong with Hans' excellent kits, and the price is
amazing for the functionality, design, and quality.

Then I installed the PAE heat sink end panels on my KX2. The latter is not
for the faint of heart! I STRONGLY recommend the somewhat buried hint in
PAE's instructions to remove the AT board before attaching the PA
transistors to the heat sink. Tried it the other way and re-discovered that
my micromanipulation skills are right up there with my CW -- maybe better,
which is damned depressing.

So, any help mastering Morse?

Thanks in advance and 73,

Jim N3SZ

-- 
Jim Sturges, N3SZ
Amateur Radio operators do it with frequency.
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[Elecraft] OT - Callsign Prefix VR20

[Johnny Siu via Elecraft]

Dear Elecrafters,
To celebrate the 20th anniversary of the establishment of the Hong Kong SAR, 
hams in Hong Kong are permitted to use VR20 as call sign prefix from 1 Jul 2017 
to 30 June 2018.
Therefore, in the coming IARU contest, you may hear some VR20 stations.
73
Johnny VR2XMC / VR20XMC
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Re: [Elecraft] 6m off-frequency

[Jim - N4ST]

I think it is not that difficult to be 500 Hz off on 6M.  I am frequently
200Hz off with the a K3S with the KTCX03-1 option factory installed.  Never
paid too much attention until the last few months when I started using
MSK144 on 6 Meters.  Now I can see that on 6M my frequency is typically off
by 50-70Hz from one day to the next and as much as 200 Hz if I let it go for
a month or so.  I figured that with a 0.5ppm (typical) KTCX03-1, it would
only vary 25 Hz from day to day.  Yes, I have adjusted REF CAL to beat with
WWV.  I've also performed the Norm/Rev CW tone adjustment and even the WSJTX
frequency cal.

___
73,
Jim - N4ST

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Erik Basilier
Sent: Sunday, June 11, 2017 17:42
To: 'Ian Kahn' ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] 6m off-frequency

Ian,

I don't have any suggestions for a solution beyond what others have already
mentioned, but as a side note I would like to discuss the concept of "off
frequency". 

It seems to me that these days, on the HF bands that I frequent, more and
more people tune SSB to where the displayed frequency is on an 500 Hz
boundary, and their rigs have sufficient frequency accuracy that excellent
copyability results without any further adjustment. This approach is much
faster than tuning by listening for most natural voice, which for me takes a
few moments. When I look over the shoulder of operators at Field Day, a
surprising percentage of people take a long time trying to tune for natural
voice, and still don't end up even close to correct tuning, so they should
be helped even more by just "going for the zeroes". While I haven't used 6m
recently, I would guess that the "zeroes" approach has become common there,
although the average rig may not be as frequency-accurate there as it would
be on the lower bands. Further to how to tune in other stations quickly, I
just found another way to minimize SSB tuning time when scanning the bands.
I configured the K3 to use the RIT knob to act as a coarse tuning knob
(CONFIG: VFO OFS), with 500 Hz steps (CONFIG: VFO CRS). I also set the main
tuning knob to a 500 Hz boundary. After setting things up this way, I use
the P3 with a span of +- 25 kHz to identify the next SSB station up or down
the band, then turn the RIT knob to put the passband over it. That puts me
close enough that only one more 500 Hz step will tune to perfect voice
clarity, and many times I will be tuned perfectly with no adjustment at all.
Much, much faster than cranking the VFO knob, first to approximate frequency
and then fine adjustment by listening. Occasionally it happens that the
station is not on a 500 Hz boundary, and I have to turn on RIT and fine
adjust by the RIT knob. Then I will usually soon hear that the station
saying that he is using an older rig. That is becoming rather rare, though.
After I am finished listening to the "off frequency" station, I just turn
off the RIT, and the RIT knob lets me tune in the next station quickly using
500 Hz steps, while leaving the main tuning knob alone. Now tuning SSB
stations is a bit like tuning FM "channels". I am not advocating
"channelizing" the HF bands, as we should have the freedom to select our
frequenciy according to the situation, but a lot of times, using a frequency
ending in zeroes saves time and effort.

73,
Erik K7TV

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ian Kahn
Sent: Sunday, June 11, 2017 8:46 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] 6m off-frequency

All,

I've been operating a little in the ARRL VHF contest this weekend, on 6m,
and I'm having an interesting, and not good, experience. Everyone I try to
work is reporting that I'm off frequency by about 500 Hz. I don't have
RIT/XIT enabled. My K3, s/n 281, went to Elecraft earlier this year for some
upgrades and a tune-up, and came back with a clean bill of health and
meets/exceeds specs.

I admit, I am new to 6m operation, but this constant report of being
off-frequency concerns me. Is there some calibration step, specific to 6m,
that I missed? I don't get this report on any other band, and have never
gotten it in over 6 years of operating this rig. My assumption is that if it
came back from the Mother Ship clean, and I've never used 6m before, that it
should be properly calibrated.

Any guidance/advice is greatly appreciated.

Thanks and 73,

--Ian
Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624  North Georgia Chapter #2038 PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468
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Re: [Elecraft] 6m off-frequency

[Nr4c]

How recently did you calibrate your P3 frequency reference?

Sent from my iPhone
...nr4c. bill


> On Jun 11, 2017, at 12:16 PM, Ian Kahn, KM4IK  wrote:
> 
> Ron/All,
> 
> As I state in my original email, I don't have this issue on any other band.
> The first couple of times other ops reported me off frequency a bit, I
> thought the issue to be as you suggest - differences in how different ops
> hear the signal, a 1-2 Hz difference, etc. However, EVERY operator I tried
> to contact reported the same thing - that I am off frequency by about 500
> Hz, that I need to adjust my RIT (which is not enabled), etc. That's why I'm
> concerned about a possible issue. I was also using my P3 to tune to signals,
> so I feel fairly certain that I was, in fact, on frequency as my receiver
> saw it.
> 
> Thanks and 73
> 
> Ian Kahn, KM4IK
> Roswell, GA  EM74ua
> km4ik@gmail.com
> 10-10 #74624  North Georgia Chapter #2038
> PODXS 070 #1962
> K3 #281, P3 #688 KAT500 #860, KPA500 #1468
> 
> -Original Message-
> From: Ron Manfredi [mailto:wa2...@optonline.net] 
> Sent: Sunday, June 11, 2017 11:55 AM
> To: Ian Kahn ; elecraft@mailman.qth.net
> Subject: Re: [Elecraft] 6m off-frequency
> 
> Have you experienced this on other bands, during casual operating since the
> rig was returned to you?
> 
> I find that when I am on SSB, I tune until my ear may likes what I am 
> hearing , and as such,  I may not be exactly on their frequency.   (that 
> is one reason for RIT!)  Also, I have found that some ops feel that they 
> have to be tuned to an even frequency on their digital display.   For 
> them, if you are on 14.219.8 and not on 14.220.0  then you are off

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[Elecraft] FS : K3 that is LOADED with 2nd Receiver, USB Upgrade, XVTR, General Coverage, 2M module and Ext 10MHZ

[mikelee0531]

Unit is in Nearly-New Condition - non-Smoking environment and cared-for by an
FCC Licensed Tech (FCC First Class Radio Telephone and Telegraph, with Radar
and Avionics)

Serial Number  # 6397

Has the following Options:

K3 Chassis

100w Amp
KAT3A Tuner
2nd receiver
TCXO (although I normally use the external 10MHz reference)
10MHz Reference Lock board
KIO3B USB Upgrade (super sweet.!!!)

Transverter Interface
DVR
1st Receiver Filters : 13.0, 2.8, 1.8, 700, 400 - all 8-pole
2nd Receiver Filters: 2.8, 1.8, 700, 400 - all 8-pole
General Coverage Receive module
2-meter module
2m RefLock for frequency stability
K-Pod (never used)

Total value (new) over $5,820.
Asking $3,200.00 + $75 shipping (insured, from Florida)

NO KNOWN DEFECTS - Unit works perfectly. The only “problem" is that it doesn’t
get used very much, except to check-in on occasional nets. Never dropped or
abused. Single owner, single operator - never lent out to individuals or groups.

Contact me off list at aa...@arrl.org

I am a long-time Elecraft user, having two (2) complete K-Lines, as well as
KX3’s (2) and a K2, so I know the quality of these products. I am also a former
Vice Director of ARRL’s SouthEastern Division - and am a 100% reliable seller.

Payment by Cashier’s Check or Postal Money Order ONLY

Thanks for looking,

Mike - AA6ML
aa...@arrl.org

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Re: [Elecraft] mic

[GRANT YOUNGMAN]

In one way or another I agree with all sides of this discussion.

As to audio quality on a typical ham SSB transceiver, whether you have a 
Neumann M150 Tube or a  3+ orders of magnitude less costly $5 RatShack (when 
there was a RatShack) condenser cartridge, it’s unlikely the guy on the other 
end will notice the difference, since his bandwidth is probably set to 2.x KHz 
and the band is not pristinely quiet.  You may feel better, you might sound 
absolutely fabulous on your audio chain or local transmit monitor, but the 
other guy isn’t going to care or notice.

Building something that you like?  Modifying something to work better for you?  
Whether it’s a mic or anything else .. that’s a good thing.  It’s instructive, 
personally satisfying, and can keep you busy and out of “low”places, which is 
something my wife highly encourages :-)

At any mic price point, no matter how fancy the external audio chain, I just 
wish there was a way to cure the age old issue (renewed emphasis on the 
Wouff-Hong perhaps?) of mic gain set too high on a rig overdriving an amp.  And 
in the midst of that, ops insisting on “eating” the microphone while speaking 
after having finely adjusted their TX EQ while NOT trying to swallow the mic.  
In so many ways, knowing how to USE a mic, is more important than how big the 
diaphragm is … 

At one time, I had a very large collection of microphones — cheap, expensive, 
condenser, dynamic, Elvis, not Elvis, new, vintage. Used them all here and 
there.   I’m down to 3 or so.  An RE-20 that I’ve had forever and was used for 
all of my now disassembled “studio n” AM/SSB stations through a Rane splitter, 
a D-104 because …. D-104 … and some day I might buy another Ranger, and the 
MH2/3 depending on which radio I’m using.  Oh, and a CM500 headset which I 
like, but which I rarely use because earbuds and the MH(x) hand mics are just 
less bulk to deal with on an outing to the beach.  


> On Jun 11, 2017, at 7:16 PM, Art Peters  wrote:
> 
> Jim,
> 
> I know better than to disagree with someone who knows what he is talking 
> about, to be open, I've read, studied and benefited from your work.  
> 

Grant NQ5T
K3 #2091, KX3 #8342



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Re: [Elecraft] mic

[Walter Underwood]

> On Jun 11, 2017, at 12:55 PM, Joe Subich, W4TV  wrote:
> 
> […] Both the Yamaha and
> Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
> rated at 96dB/mW and microphones well tailored for voice work.

Not sure I’d rate the Yamaha CM500 headset drivers as “outstanding”. When my 
Grado SR-60 headphones died (after 15 years), I tried using the CM500 for 
music. That idea lasted about a day before I ordered new Grado phones. The 
current SR60e model is $80, so not that different from the Yamaha in terms of 
cost.

The CM500 is perfectly fine for voice communication work.

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

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Re: [Elecraft] mic

[Bill Frantz]

As Jim says, "For most cases...", But.

When I help provide communication for the Los Gatos Children's 
Holliday Parade, it is not "most cases". When operating next to 
the parade route, there is frequently a high school marching 
band going full blast just 20 feet away. The problem isn't in 
the RF link, which is 2M FM. It's in the AF link with QRM for 
both transmit and receive. The David Clark headset might be just 
the right thing for this kind of environment.


When foot mobile along the parade route, I use Sennenheiser 
noise canceling headphones plugged into a Yaesu MH-34 speaker 
mike which seems to be "good enough". The CM-500 headset works 
well for the net control station, which is a bit further away 
from the parade route.


73 Bill AE6JV

On 6/11/17 at 1:44 PM, j...@audiosystemsgroup.com (Jim Brown) wrote:

True "noise cancelling" mics sound awful. They work on the 
principle of cancelling noise more than an inch or two from the 
mouth. SUPER noisy places like aircraft are the ONLY place to 
use them.


Most hams who have too much background noise either don't work 
the mic close enough (it should be an inch or two above and 
alongside the mouth), or have processing and/or mic gain turned 
up way too high.


---
Bill Frantz|"Web security is like medicine - trying to 
do good for

408-356-8506   |an evolved body of kludges" - Mark Miller
www.pwpconsult.com |

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Re: [Elecraft] KX2 water resistant case

[Bill Frantz]

I have used Pelican cases for many years for carrying equipment 
in caves. Since this sometimes involves swimming, you need a 
waterproof case. The Pelicans have worked very well.


I have also used Otter boxes. I have one made out of transparent 
plastic to hold a photographic strobe with an optical slave to 
trigger it from a camera flash. It has been swimming and also 
held under water to light up pools. It also has been very 
reliable about keeping the contents dry.


I would recommend both Pelican and Otter waterproof cases for 
those looking for water protection and protection against being 
dragged through mud, banged on rocks and other misuse.


73 Bill AE6JV

-
Bill Frantz| When it comes to the world | Periwinkle
(408)356-8506  | around us, is there any choice | 16345 
Englewood Ave
www.pwpconsult.com | but to explore? - Lisa Randall | Los Gatos, 
CA 95032


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Re: [Elecraft] mic

[Art Peters]

Jim,

I know better than to disagree with someone who knows what he is talking about, 
to be open, I've read, studied and benefited from your work.  

The point that I'll say is that the Yamaha headset, which I did buy largely 
from your raving reviews, did a fine job, but were never as comfortable as my 
other headsets.  I do use them as a spare and for guest ops. In fact, if I wear 
them for more than a couple hours, I get a rather nasty headache...

So, I'd like to add to this conversation.  While we have great ability to 
leverage a wide variety of mics, for me at least, fit and comfort are equal.  


73 es God Bless,

Art / K0ACP

Sent from my iPhone

> On Jun 11, 2017, at 3:06 PM, Jim Brown  wrote:
> 
>> On Sun,6/11/2017 11:45 AM, kevino z wrote:
>> I don't think you meant to, but your post came off as if we bought some 
>> snake oil.
> 
> Heil IS snake oil. As audio professionals say about Bose, "better sound 
> through marketing."
> 
> The Yamaha CM500 and Koss SB45 are at least as good, and cost a LOT less.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] Field use of Counerpiose

[Ron D'Eau Claire]

Agree with Don 100%. Keep in mind that the power is divided between the
counterpoise and the end fed antenna wire. The power divides according to
their impedances; if the impedances are equal, you lose 3 dB (half of the
power) in the counterpoise. So the idea is to have the counterpoise present
the lowest impedance possible and the antenna present the highest impedance
possible.

Usually the easiest first step is to raise the impedance the antenna
presents. That's usually limited by the range of the tuner you are using to
match the system to your transmitter but the ideal length is an electrical
1/2 wave of wire. Get a close as the tuner have can find a match.  

Next you lower the impedance of the counterpoise - the more wires the better
although the advantage of more than 6 or 8 wires is pretty small. As Don
noted, that also keeps the RF voltage at the rig low. 

Those are the ideals for an end fed wire. Most of us have to settle for
something less for a variety of reasons. 

73, Ron AC7AC

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Sunday, June 11, 2017 3:11 PM
To: Gerry Miller; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Field use of Counerpiose

Gerry,

If your purpose for your "counterpoise" is simply to complete the antenna,
then it does not make much difference whether it is grounded or not.
But if its purpose is to keep RF off the enclosure of the rig, there is a
difference.  If it is 1/4 wavelength long, then it should not be grounded -
just like any 1/4 wavelength wire, it is a low impedance point at the
'shack' end.
OTOH, if it is 1/2 wavelength long, ground it to produce a low impedance at
the 'shack end.

A bit of study on antennas and feedline characteristics may be helpful. 
The 'counterpoise' acts like an antenna wire.

73,
Don W3FPR

On 6/11/2017 4:44 PM, Gerry Miller wrote:
> 
> Does one ground to earth, the far end of an HF counterpoise or just let it
float above ground at a field location?  I had always believed it should not
be grounded.

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Re: [Elecraft] OT Learning Morse anew

[Ron D'Eau Claire]

Hi Jim:

I KNOW I learned Morse all wrong, according to today's experts. Listened to
ARRL bulletins, code practice tapes a neighbor Ham made for me and a buddy
and practiced sending on a straight key focusing on proper spacing at all
times. 

I can copy 40 to 45 wpm in my head, 35 wpm on a keyboard and 20 wpm on
paper. Since 99.9% of QSO's I encounter on the air are at around 20 wpm I've
never pushed much beyond that for routine operating. 

So the obvious questions are:

What speed do you want to attain? 

What technique are you using to raise your speed? (My "technique" has always
been to copy a LOT of CW and try to find stations sending at about my upper
limit. I don't need to work them. In fact not having to copy is an
advantage. I just want to "read the mail".) 

What is a PAE heat sink, an after-market heat sink?

73 Ron AC7AC



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Sr Sturges
Sent: Sunday, June 11, 2017 3:25 PM
To: Elecraft Reflector
Subject: [Elecraft] OT Learning Morse anew

I think I learned code all wrong. Can't ever seem to get my speed up.

Surely some of the astute among you _know_ The Perfect Method, and I hope
you will share?

To complete the OT-ness of this msg, I recently completed the QRP Labs
Ultimate WSPR/QRSS kit and re-learned the joys of soldering iron burns,
again. Certainly nothing wrong with Hans' excellent kits, and the price is
amazing for the functionality, design, and quality.

Then I installed the PAE heat sink end panels on my KX2. The latter is not
for the faint of heart! I STRONGLY recommend the somewhat buried hint in
PAE's instructions to remove the AT board before attaching the PA
transistors to the heat sink. Tried it the other way and re-discovered that
my micromanipulation skills are right up there with my CW -- maybe better,
which is damned depressing.

So, any help mastering Morse?

Thanks in advance and 73,

Jim N3SZ

--
Jim Sturges, N3SZ
Amateur Radio operators do it with frequency.
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Re: [Elecraft] OT Learning Morse anew

[dgb]

Yes, the best is

http://www.cwops.org/cwacademy.html

73 Dwight NS9I


On 6/11/2017 5:25 PM, Jim Sr Sturges wrote:

I think I learned code all wrong. Can't ever seem to get my speed up.

Surely some of the astute among you _know_ The Perfect Method, and I hope
you will share?

To complete the OT-ness of this msg, I recently completed the QRP Labs
Ultimate WSPR/QRSS kit and re-learned the joys of soldering iron burns,
again. Certainly nothing wrong with Hans' excellent kits, and the price is
amazing for the functionality, design, and quality.

Then I installed the PAE heat sink end panels on my KX2. The latter is not
for the faint of heart! I STRONGLY recommend the somewhat buried hint in
PAE's instructions to remove the AT board before attaching the PA
transistors to the heat sink. Tried it the other way and re-discovered that
my micromanipulation skills are right up there with my CW -- maybe better,
which is damned depressing.

So, any help mastering Morse?

Thanks in advance and 73,

Jim N3SZ



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[Elecraft] OT Learning Morse anew

[Jim Sr Sturges]

I think I learned code all wrong. Can't ever seem to get my speed up.

Surely some of the astute among you _know_ The Perfect Method, and I hope
you will share?

To complete the OT-ness of this msg, I recently completed the QRP Labs
Ultimate WSPR/QRSS kit and re-learned the joys of soldering iron burns,
again. Certainly nothing wrong with Hans' excellent kits, and the price is
amazing for the functionality, design, and quality.

Then I installed the PAE heat sink end panels on my KX2. The latter is not
for the faint of heart! I STRONGLY recommend the somewhat buried hint in
PAE's instructions to remove the AT board before attaching the PA
transistors to the heat sink. Tried it the other way and re-discovered that
my micromanipulation skills are right up there with my CW -- maybe better,
which is damned depressing.

So, any help mastering Morse?

Thanks in advance and 73,

Jim N3SZ

-- 
Jim Sturges, N3SZ
Amateur Radio operators do it with frequency.
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Re: [Elecraft] Field use of Counerpiose

[Don Wilhelm]

Gerry,

If your purpose for your "counterpoise" is simply to complete the 
antenna, then it does not make much difference whether it is grounded or 
not.
But if its purpose is to keep RF off the enclosure of the rig, there is 
a difference.  If it is 1/4 wavelength long, then it should not be 
grounded - just like any 1/4 wavelength wire, it is a low impedance 
point at the 'shack' end.
OTOH, if it is 1/2 wavelength long, ground it to produce a low impedance 
at the 'shack end.


A bit of study on antennas and feedline characteristics may be helpful. 
The 'counterpoise' acts like an antenna wire.


73,
Don W3FPR

On 6/11/2017 4:44 PM, Gerry Miller wrote:


Does one ground to earth, the far end of an HF counterpoise or just let it 
float above ground at a field location?  I had always believed it should not be 
grounded.

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Re: [Elecraft] Field use of Counerpiose

[Jim Brown]

On Sun,6/11/2017 2:28 PM, Fred Jensen wrote:

An elevated counterpoise is just another element in your antenna.


That's true of ANY counterpoise, whether on the ground or not. In 
general, higher is better. The closer any part of an antenna is to the 
ground the more power the ground sucks up that won't be radiated.


There is both capacitive and inductive coupling to the earth. Both cause 
loss. That's why higher is better, and why an earth connection is NOT 
usually a good thing for signal strength. It IS a good thing at the base 
of an antenna for lightning safety.


73, Jim K9YC

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Re: [Elecraft] mic - David Clark

[Fred Jensen]

Hmmm ... I've had it for several years and it saw some use before I got 
it but I doubt it's old enough to be a carbon mic like the WW2 T-17.


I just assumed the "noise cancelling" part applied to the headphones.  I 
didn't know it might apply to the mic.  There's no external noise in my 
shack to cancel anyway.


The connector is round and the contacts stick out of the face.  I think 
there are 6, maybe Headphones, Mic, and PTT?  There's a push-switch in 
the cable.  It looks like the connector fits over the panel connector 
and you twist is to lock it ... like a BNC.  I don't think the 
headphones are stereo which is a big negative with my K3.


I was just curious.  This sounds like a project for some time when I 
have exactly nothing else to do. [:-)  Thanks for the info


73,

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

On 6/11/17 1:51 PM, Jack Spitznagel wrote:

Fred,

I have a widget that adapts a Sennheiser S1 av-noise canceler to my KX3. Use it 
for hi noise situations and it works like charm, even Massey-Ferguson mobile.🙂
Try it with the David Clarks.
Was connector a mismatched size pair of phone jacks or a complex military 
looking connector?

Jack -KD4IZ




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Re: [Elecraft] 6m off-frequency

[Erik Basilier]

Ian,

I don't have any suggestions for a solution beyond what others have already
mentioned, but as a side note I would like to discuss the concept of "off
frequency". 

It seems to me that these days, on the HF bands that I frequent, more and
more people tune SSB to where the displayed frequency is on an 500 Hz
boundary, and their rigs have sufficient frequency accuracy that excellent
copyability results without any further adjustment. This approach is much
faster than tuning by listening for most natural voice, which for me takes a
few moments. When I look over the shoulder of operators at Field Day, a
surprising percentage of people take a long time trying to tune for natural
voice, and still don't end up even close to correct tuning, so they should
be helped even more by just "going for the zeroes". While I haven't used 6m
recently, I would guess that the "zeroes" approach has become common there,
although the average rig may not be as frequency-accurate there as it would
be on the lower bands. Further to how to tune in other stations quickly, I
just found another way to minimize SSB tuning time when scanning the bands.
I configured the K3 to use the RIT knob to act as a coarse tuning knob
(CONFIG: VFO OFS), with 500 Hz steps (CONFIG: VFO CRS). I also set the main
tuning knob to a 500 Hz boundary. After setting things up this way, I use
the P3 with a span of +- 25 kHz to identify the next SSB station up or down
the band, then turn the RIT knob to put the passband over it. That puts me
close enough that only one more 500 Hz step will tune to perfect voice
clarity, and many times I will be tuned perfectly with no adjustment at all.
Much, much faster than cranking the VFO knob, first to approximate frequency
and then fine adjustment by listening. Occasionally it happens that the
station is not on a 500 Hz boundary, and I have to turn on RIT and fine
adjust by the RIT knob. Then I will usually soon hear that the station
saying that he is using an older rig. That is becoming rather rare, though.
After I am finished listening to the "off frequency" station, I just turn
off the RIT, and the RIT knob lets me tune in the next station quickly using
500 Hz steps, while leaving the main tuning knob alone. Now tuning SSB
stations is a bit like tuning FM "channels". I am not advocating
"channelizing" the HF bands, as we should have the freedom to select our
frequenciy according to the situation, but a lot of times, using a frequency
ending in zeroes saves time and effort.

73, 
Erik K7TV

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ian Kahn
Sent: Sunday, June 11, 2017 8:46 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] 6m off-frequency

All,

I've been operating a little in the ARRL VHF contest this weekend, on 6m,
and I'm having an interesting, and not good, experience. Everyone I try to
work is reporting that I'm off frequency by about 500 Hz. I don't have
RIT/XIT enabled. My K3, s/n 281, went to Elecraft earlier this year for some
upgrades and a tune-up, and came back with a clean bill of health and
meets/exceeds specs.

I admit, I am new to 6m operation, but this constant report of being
off-frequency concerns me. Is there some calibration step, specific to 6m,
that I missed? I don't get this report on any other band, and have never
gotten it in over 6 years of operating this rig. My assumption is that if it
came back from the Mother Ship clean, and I've never used 6m before, that it
should be properly calibrated.

Any guidance/advice is greatly appreciated.

Thanks and 73,

--Ian
Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624  North Georgia Chapter #2038 PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468
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Re: [Elecraft] Field use of Counerpiose

[Fred Jensen]

A counterpoise on the ground or buried a short distance [~5-10 cm] is a 
low resistance path in parallel with the much higher ground resistance 
for the return current for unbalanced antennas [verticals, end-fed 
wires, etc.]  They're often called radials or ground-screens, and in 
general, more is better, but one is a whole lot better than none.  The 
return current decreases rapidly away from the antenna so more shorter 
radials is usually better than a few longer ones.  Such a counterpoise 
wire is effectively grounded regardless of what you do at the end.  If 
it feels better to tie it to a stake in the ground, by all means do so.


An elevated counterpoise is just another element in your antenna. Length 
matters.  For a single wire fed at the end, if the counterpoise is the 
same length as the wire and elevated, it's a center-fed dipole again 
[whether or not it is resonant].  In the field, mine lays on the ground 
and is about 1.5 ft longer than the wire [~25 ft].


If you're next to salt water, toss it in.  MF survival radios [500 Kcs] 
from WW2 had a balloon or kite to raise the wire, and a weighted braid 
to toss over the side of your raft.


73,

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

On 6/11/17 1:44 PM, Gerry Miller wrote:

Does one ground to earth, the far end of an HF counterpoise or just let it 
float above ground at a field location?  I had always believed it should not be 
grounded.
Gerry Miller, AA2ZJ
aa...@juno.com

1 Simple Trick Removes Eye Bags & Lip Lines in Seconds
Fit Mom Daily
http://thirdpartyoffers.juno.com/TGL3141/593dabef2922e2bef0e3cst02vuc
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Re: [Elecraft] mic

[Clay Autery]

I was simply answering the question that the man asked, Jim.  
Don't reckon I even alluded to it "working well".

__
Clay Autery, KY5G

On 6/11/2017 3:48 PM, Jim Brown wrote:
> On Sun,6/11/2017 1:39 PM, Clay Autery wrote:
>> If you can get the pinout, I don't see why it could not be made to
>> work
>
> It can be made to connect, no problem. But if it's a true
> noise-cancelling mic, it will sound awful. :)
>
> That's very different from a DIRECTIONAL mic, which has the
> approximate pattern of a 2-el Yagi. So it receives 3-6 dB less noise,
> but it also boosts the bass, which is a bad thing for audio "punch."
>
> The boom headset mics we've been discussing are omni-directional mics
> (all-directional). And no bass boost.
>
> 73, Jim K9YC
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Re: [Elecraft] mic settings for PR 781

[George Thornton]

I just got my K3 back from the factory after a repair and upgrade and have to 
re-set up my microphone.

I have the PR 781 microphone.  I was wondering what settings (mic gain, 
compression, TX equalization) people with this microphone have used for best 
results
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown
Sent: Sunday, June 11, 2017 1:44 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] mic

True "noise cancelling" mics sound awful. They work on the principle of
cancelling noise more than an inch or two from the mouth. SUPER noisy
places like aircraft are the ONLY place to use them.

Most hams who have too much background noise either don't work the mic
close enough (it should be an inch or two above and alongside the
mouth), or have processing and/or mic gain turned up way too high.

73, Jim K9YC

On Sun,6/11/2017 1:29 PM, Fred Jensen wrote:
> Just curious ... I inherited a David Clark noise cancelling aviation
> headset/mic from a neighbor who was a US Forest Service pilot. I've
> never tried it, the connector is strange. I'm not even sure I know
> where it is right now. Will it work with my K3 if I can find it and
> get the connector compatible? I know they're expensive.
>
> Maybe it will cancel the powerline noise on 80? [:-))
>
> 73,
>
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
>
> On 6/11/17 12:55 PM, Joe Subich, W4TV wrote:
>>
>> On 6/11/2017 2:45 PM, kevino z wrote:
>>> Although headsets like my Heil Pro 7 may be more money, am I really
>>> "wasting" money on buying a "fancy brand name" considering the
>>> unit consists of mic and incredible speakers?
>>
>> Yes, at about $250 retail (plus adapter cable), the Pro 7 is more than
>> five times as expensive as the Yamaha CM-500 (electret mic), Koss SB40
>> (dynamic mic) or SB45 (electret mic) headsets. Both the Yamaha and
>> Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
>> rated at 96dB/mW and microphones well tailored for voice work. Heil
>> does not even publish the impedance or sensitivity for their headset
>> drivers!
>>
>> For the price of a Heil Pro 7 one could get a Broadcast headset like
>> the Audio Technica BPHS1 ($199), Sennheiser HMD280 ($249) or Shure
>> BRH440M ($249) - all of which are significantly higher quality than
>> the Pro7 (and field proven).
>>
>> 73,
>>
>> ... Joe, W4TV
>
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> j...@audiosystemsgroup.com
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gthorn...@thorntonmostullaw.com


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Re: [Elecraft] mic

[Jack Spitznagel]

Fred,

I have a widget that adapts a Sennheiser S1 av-noise canceler to my KX3. Use it 
for hi noise situations and it works like charm, even Massey-Ferguson mobile.🙂 
Try it with the David Clarks. 
Was connector a mismatched size pair of phone jacks or a complex military 
looking connector?

Jack -KD4IZ 

Sent from my iPhone

> On Jun 11, 2017, at 15:29, Fred Jensen  wrote:
> 
> Just curious ... I inherited a David Clark noise cancelling aviation 
> headset/mic from a neighbor who was a US Forest Service pilot.  I've never 
> tried it, the connector is strange.  I'm not even sure I know where it is 
> right now.  Will it work with my K3 if I can find it and get the connector 
> compatible?  I know they're expensive.
> 
> Maybe it will cancel the powerline noise on 80? [:-))
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
>> On 6/11/17 12:55 PM, Joe Subich, W4TV wrote:
>> 
>>> On 6/11/2017 2:45 PM, kevino z wrote:
>>> Although headsets like my Heil Pro 7 may be more money, am I really
>>> "wasting" money on buying a "fancy brand name"  considering the
>>> unit consists of mic and incredible speakers?
>> 
>> Yes, at about $250 retail (plus adapter cable), the Pro 7 is more than
>> five times as expensive as the Yamaha CM-500 (electret mic), Koss SB40
>> (dynamic mic) or SB45 (electret mic) headsets.   Both the Yamaha and
>> Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
>> rated at 96dB/mW and microphones well tailored for voice work. Heil
>> does not even publish the impedance or sensitivity for their headset
>> drivers!
>> 
>> For the price of a Heil Pro 7 one could get a Broadcast headset like
>> the Audio Technica BPHS1 ($199), Sennheiser HMD280 ($249) or Shure
>> BRH440M ($249) - all of which are significantly higher quality than
>> the Pro7 (and field proven).
>> 
>> 73,
>> 
>>   ... Joe, W4TV
> 
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Re: [Elecraft] mic

[Jim Brown]

On Sun,6/11/2017 1:39 PM, Clay Autery wrote:

If you can get the pinout, I don't see why it could not be made to
work


It can be made to connect, no problem. But if it's a true 
noise-cancelling mic, it will sound awful. :)


That's very different from a DIRECTIONAL mic, which has the approximate 
pattern of a 2-el Yagi. So it receives 3-6 dB less noise, but it also 
boosts the bass, which is a bad thing for audio "punch."


The boom headset mics we've been discussing are omni-directional mics 
(all-directional). And no bass boost.


73, Jim K9YC

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[Elecraft] Field use of Counerpiose

[Gerry Miller]

Does one ground to earth, the far end of an HF counterpoise or just let it 
float above ground at a field location?  I had always believed it should not be 
grounded.
Gerry Miller, AA2ZJ
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1 Simple Trick Removes Eye Bags & Lip Lines in Seconds
Fit Mom Daily
http://thirdpartyoffers.juno.com/TGL3141/593dabef2922e2bef0e3cst02vuc
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Re: [Elecraft] mic

[Jim Brown]

True "noise cancelling" mics sound awful. They work on the principle of 
cancelling noise more than an inch or two from the mouth. SUPER noisy 
places like aircraft are the ONLY place to use them.


Most hams who have too much background noise either don't work the mic 
close enough (it should be an inch or two above and alongside the 
mouth), or have processing and/or mic gain turned up way too high.


73, Jim K9YC

On Sun,6/11/2017 1:29 PM, Fred Jensen wrote:
Just curious ... I inherited a David Clark noise cancelling aviation 
headset/mic from a neighbor who was a US Forest Service pilot.  I've 
never tried it, the connector is strange.  I'm not even sure I know 
where it is right now.  Will it work with my K3 if I can find it and 
get the connector compatible?  I know they're expensive.


Maybe it will cancel the powerline noise on 80? [:-))

73,

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

On 6/11/17 12:55 PM, Joe Subich, W4TV wrote:


On 6/11/2017 2:45 PM, kevino z wrote:

Although headsets like my Heil Pro 7 may be more money, am I really
"wasting" money on buying a "fancy brand name"  considering the
unit consists of mic and incredible speakers?


Yes, at about $250 retail (plus adapter cable), the Pro 7 is more than
five times as expensive as the Yamaha CM-500 (electret mic), Koss SB40
(dynamic mic) or SB45 (electret mic) headsets.   Both the Yamaha and
Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
rated at 96dB/mW and microphones well tailored for voice work. Heil
does not even publish the impedance or sensitivity for their headset
drivers!

For the price of a Heil Pro 7 one could get a Broadcast headset like
the Audio Technica BPHS1 ($199), Sennheiser HMD280 ($249) or Shure
BRH440M ($249) - all of which are significantly higher quality than
the Pro7 (and field proven).

73,

   ... Joe, W4TV


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Re: [Elecraft] mic

[Clay Autery]

If you can get the pinout, I don't see why it could not be made to
work...  Just put the right connector on it...  I'd put a Y and two
connectors on it so I could plug it in the back...  I dig the clean
front face look.

My guess is that the connector was a proprietary one matching the
connector in his aircraft.  I've seen some odd ones.  :-)

__
Clay Autery, KY5G

On 6/11/2017 3:29 PM, Fred Jensen wrote:
> Just curious ... I inherited a David Clark noise cancelling aviation
> headset/mic from a neighbor who was a US Forest Service pilot.  I've
> never tried it, the connector is strange.  I'm not even sure I know
> where it is right now.  Will it work with my K3 if I can find it and
> get the connector compatible?  I know they're expensive.
>
> Maybe it will cancel the powerline noise on 80? [:-))
>
> 73,
>
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
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Re: [Elecraft] mic

[Matt Zilmer]

It might work, Fred.  Check this page: 
http://www.acousticom.com/2015/aviation-headset-information-specs/


I always thought that aviation headsets met some earlier mic standard 
(carbon?), but this page says that's not right.  Note that the actual 
headset speakers/transducrers have a rather high impedance, though I 
suspect they may work with a K3S anyway.


Someone else can chime on a load of 300 ohms using the K3S's headphone 
driver circuit. My DCs are way too buried to find and check this right now.


73,

matt W6NIA

On 6/11/2017 1:29 PM, Fred Jensen wrote:
Just curious ... I inherited a David Clark noise cancelling aviation 
headset/mic from a neighbor who was a US Forest Service pilot.  I've 
never tried it, the connector is strange.  I'm not even sure I know 
where it is right now.  Will it work with my K3 if I can find it and 
get the connector compatible?  I know they're expensive.


Maybe it will cancel the powerline noise on 80? [:-))

73,

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

On 6/11/17 12:55 PM, Joe Subich, W4TV wrote:


On 6/11/2017 2:45 PM, kevino z wrote:

Although headsets like my Heil Pro 7 may be more money, am I really
"wasting" money on buying a "fancy brand name"  considering the
unit consists of mic and incredible speakers?


Yes, at about $250 retail (plus adapter cable), the Pro 7 is more than
five times as expensive as the Yamaha CM-500 (electret mic), Koss SB40
(dynamic mic) or SB45 (electret mic) headsets.   Both the Yamaha and
Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
rated at 96dB/mW and microphones well tailored for voice work. Heil
does not even publish the impedance or sensitivity for their headset
drivers!

For the price of a Heil Pro 7 one could get a Broadcast headset like
the Audio Technica BPHS1 ($199), Sennheiser HMD280 ($249) or Shure
BRH440M ($249) - all of which are significantly higher quality than
the Pro7 (and field proven).

73,

   ... Joe, W4TV


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--
"A delay is better than a disaster."
-- unknown

Matt Zilmer, W6NIA
[Shiraz]

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Re: [Elecraft] mic

[Fred Jensen]

Just curious ... I inherited a David Clark noise cancelling aviation 
headset/mic from a neighbor who was a US Forest Service pilot.  I've 
never tried it, the connector is strange.  I'm not even sure I know 
where it is right now.  Will it work with my K3 if I can find it and get 
the connector compatible?  I know they're expensive.


Maybe it will cancel the powerline noise on 80? [:-))

73,

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

On 6/11/17 12:55 PM, Joe Subich, W4TV wrote:


On 6/11/2017 2:45 PM, kevino z wrote:

Although headsets like my Heil Pro 7 may be more money, am I really
"wasting" money on buying a "fancy brand name"  considering the
unit consists of mic and incredible speakers?


Yes, at about $250 retail (plus adapter cable), the Pro 7 is more than
five times as expensive as the Yamaha CM-500 (electret mic), Koss SB40
(dynamic mic) or SB45 (electret mic) headsets.   Both the Yamaha and
Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
rated at 96dB/mW and microphones well tailored for voice work. Heil
does not even publish the impedance or sensitivity for their headset
drivers!

For the price of a Heil Pro 7 one could get a Broadcast headset like
the Audio Technica BPHS1 ($199), Sennheiser HMD280 ($249) or Shure
BRH440M ($249) - all of which are significantly higher quality than
the Pro7 (and field proven).

73,

   ... Joe, W4TV


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Re: [Elecraft] 6m off-frequency

[Fred Jensen]

Indeed!  The huge gulf between "precision" and "accuracy."   A display 
with gobs of decimal places can be colossally but precisely wrong.  It 
is also true that frequencies that end in .000 are "better" for many 
people so I avoid them when looking for a run frequency. [:-)


This problem on 6 meters sure sounds like XIT or maybe SPLIT is engaged 
for that band and has been remembered.  Years ago, 30 meters went dead 
with infinite SWR on my K3 -- all the rest were fine.  Wayne finally 
telephoned me and his first question was, "Which antenna is selected?"  
Antenna selection is remembered by band.


73,

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

On 6/11/17 11:28 AM, Bob McGraw K4TAX wrote:


Also, the advent of digital readouts can cause this type of discussion 
to arise.  Seems that everyone thinks the digital display is 
absolutely accurate.  In most cases it is not a frequency measuring 
system but rather a frequency display based on certain accepted 
oscillator frequencies {which may or may not be absolute}  and math 
calculations if the firmware.   It seems that we've migrated to 
setting the radio with the display to be on a specific indicated value.


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Re: [Elecraft] mic

[Bill]

After having tinkered with many different kinds of mics on the K3 - I 
feel very confident in saying that a K3 can make ANY mic sound great. It 
is all about learning to use the menu settings and not about how much 
you spend for the microphone.


This is not to say that some microphones are not physically better 
built, or may look better to the beholder. It is only about how they can 
be made to sound.


Bill W2BLC K3-Line

--
Many of life's problems can be solved by simply deciding what
we can do without. - John Dolan

--
Many of life's problems can be solved by simply deciding what
we can do without. - John Dolan

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Re: [Elecraft] mic

[Joe Subich, W4TV]

On 6/11/2017 2:45 PM, kevino z wrote:

Although headsets like my Heil Pro 7 may be more money, am I really
"wasting" money on buying a "fancy brand name"  considering the
unit consists of mic and incredible speakers?


Yes, at about $250 retail (plus adapter cable), the Pro 7 is more than
five times as expensive as the Yamaha CM-500 (electret mic), Koss SB40
(dynamic mic) or SB45 (electret mic) headsets.   Both the Yamaha and
Koss headsets have outstanding 120 Ohm headset drivers with sensitivity
rated at 96dB/mW and microphones well tailored for voice work.  Heil
does not even publish the impedance or sensitivity for their headset
drivers!

For the price of a Heil Pro 7 one could get a Broadcast headset like
the Audio Technica BPHS1 ($199), Sennheiser HMD280 ($249) or Shure
BRH440M ($249) - all of which are significantly higher quality than
the Pro7 (and field proven).

73,

   ... Joe, W4TV


On 6/11/2017 2:45 PM, kevino z wrote:

Although headsets like my Heil Pro 7 may be more money, am I really "wasting" money on 
buying a "fancy brand name"  considering the unit consists of mic and incredible 
speakers? It is a complete package. Besides the amazing electret mic, the sound from the headphones 
helps me to enjoy the hobby more and allows me to pick out signals I would not be able to without 
them. I don't think you meant to, but your post came off as if we bought some snake oil.

-Kevin (KK4YEL)

No trees were killed in the sending of this message. However, a large number of 
electrons were terribly inconvenienced !


On Jun 11, 2017, at 10:41, Joe Subich, W4TV  wrote:


Bob and Jim have excellent points.

There is one advantage for the electret mic compared to a dynamic
mic.  Electrets are generally 26 dB "hotter" than a dynamic mic
and thus are much more resistant to common mode RF feedback and
magnetic coupling.  However, that assumes the transceiver is
designed for the higher input level and properly reduces gain
before the mic gain control.

Mics of any kind - dynamic or condenser/electret - with wide frequency
response are completely wasted for amateur radio (or any communications
application).  You really want a clean 200 Hz - 4 Hz response.  Lower
frequencies cause distortion and waste power, higher frequencies are
simply lost in the "channel noise".

Like Bob and Jim, I spent my professional life in the recording and
broadcast industries.  Amateurs waste far too much on over spec'd
microphones and fancy "brand name" advertising campaigns.

73,

   ... Joe, W4TV



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[Elecraft] NorCal 40a

[Mark Glenn]

Wayne & Eric,

 

I listened to Eric Guth's interview of Wayne on the QSO Today podcast where the
NorCal 40a was discussed, along with   David B.
Rutledge's book.  It looks like the NorCal 40a is no longer available in kit
form.  I was wondering if Elecraft would consider bringing that kit back to
general availability.  It seems that there could be a market for it in the
education space, particularly if sold along with Prof. Rutledge's book. 

 

73,

Mark Glenn

K7MJG

 

K3/KX3 & KXPA100/KX1 (2)/K1

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Re: [Elecraft] mic

[Jim Brown]

On Sun,6/11/2017 11:45 AM, kevino z wrote:

I don't think you meant to, but your post came off as if we bought some snake 
oil.


Heil IS snake oil. As audio professionals say about Bose, "better sound 
through marketing."


The Yamaha CM500 and Koss SB45 are at least as good, and cost a LOT less.

73, Jim K9YC

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Re: [Elecraft] mic

[kevino z]

Although headsets like my Heil Pro 7 may be more money, am I really "wasting" 
money on buying a "fancy brand name"  considering the unit consists of mic and 
incredible speakers? It is a complete package. Besides the amazing electret 
mic, the sound from the headphones helps me to enjoy the hobby more and allows 
me to pick out signals I would not be able to without them. I don't think you 
meant to, but your post came off as if we bought some snake oil.

-Kevin (KK4YEL)

No trees were killed in the sending of this message. However, a large number of 
electrons were terribly inconvenienced !

> On Jun 11, 2017, at 10:41, Joe Subich, W4TV  wrote:
> 
> 
> Bob and Jim have excellent points.
> 
> There is one advantage for the electret mic compared to a dynamic
> mic.  Electrets are generally 26 dB "hotter" than a dynamic mic
> and thus are much more resistant to common mode RF feedback and
> magnetic coupling.  However, that assumes the transceiver is
> designed for the higher input level and properly reduces gain
> before the mic gain control.
> 
> Mics of any kind - dynamic or condenser/electret - with wide frequency
> response are completely wasted for amateur radio (or any communications
> application).  You really want a clean 200 Hz - 4 Hz response.  Lower
> frequencies cause distortion and waste power, higher frequencies are
> simply lost in the "channel noise".
> 
> Like Bob and Jim, I spent my professional life in the recording and
> broadcast industries.  Amateurs waste far too much on over spec'd
> microphones and fancy "brand name" advertising campaigns.
> 
> 73,
> 
>   ... Joe, W4TV
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Re: [Elecraft] 6m off-frequency

[Bob McGraw K4TAX]

You say RIT is not engaged, but what about XIT?   Either of these being 
ON can cause an issue in this regard.Additionally, the way one 
person tunes to a SSB station may cause some frequency disparity between 
two stations.   Excercise: with eyes closed, tune to a station and then 
look at the display.


Also, the advent of digital readouts can cause this type of discussion 
to arise.  Seems that everyone thinks the digital display is absolutely 
accurate.  In most cases it is not a frequency measuring system but 
rather a frequency display based on certain accepted oscillator 
frequencies {which may or may not be absolute}  and math calculations if 
the firmware.   It seems that we've migrated to setting the radio with 
the display to be on a specific indicated value.


73

Bob, K4TAX




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Re: [Elecraft] mic

[Jim Brown]

On Sun,6/11/2017 11:20 AM, Brian Denley wrote:

Bob:
I actually need the preamp with some mics, especially the dynamics  I don't 
have a K3.   My K2 doesn't have much mic gain.  My other rigs do.


Yes, that's a known issue. MANY years ago I worked out a simple mod for 
the K2 to add 6-8 dB of gain for a dynamic mic and add some LF rolloff. 
I think W3FPR has notes on it. There are other mods further along the 
signal chain, but they are not as simple.


73, Jim K9YC

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Re: [Elecraft] mic

[Brian Denley]

Bob:
I actually need the preamp with some mics, especially the dynamics  I don't 
have a K3.   My K2 doesn't have much mic gain.  My other rigs do.

Brian 
KB1VBF
Sent from my iPad

> On Jun 11, 2017, at 9:29 AM, Bob McGraw K4TAX  wrote:
> 
> On Jim's points, I fully agree.  It seems hams are prone to over complicate a 
> rather simple issue.  There's more than adequate mike gain in the K3S, thus I 
>  find no technical reason for the use of an external preamp.   The internal 
> EQ of the K3S again is most adequate to correctly tailor communications 
> audio, even ESSB.
> 
> I've found mike technique to be a very important factor in good quality 
> audio.  From personal observations, many hams have and use poor mike 
> technique.The mike-to-mouth position is most critical and will vary with 
> different mikes.
> 
> Like Jim, I'm a retired recording studio engineer and a live stage 
> performance engineer.  Nothing but experience and learning from the experts 
> will improve what you do.
> 
> 73
> Bob, K4TAX
> 
> 
> 
>> On 6/11/2017 1:06 AM, Jim Brown wrote:
>>> On Sat,6/10/2017 8:02 PM, Clay Autery wrote:
>>> Customized large capsule condenser mic on a Heil PL2T boom using ONYX
>>> Blackjack for power supply/control.
>> 
>> Sorry, but you guys are WAY over the edge on this. As a retired recording 
>> engineer, I own a bunch of great large and small diaphragm mics, both 
>> condensers and dynamics, that put these mics to shame, but I wouldn't waste 
>> any of them in a ham station. I'm VERY happy with a Yamaha CM500 since W6XU 
>> turned me on to it around 2009, at a fraction of the cost. It's plugged 
>> straight into the rear panel mic jack of my K3s (plural, not the new K3S). 
>> Any decent electret will work as well, especially with the EQ built into a 
>> K3, K3S, KX3, KX2. Those large diaphragm mics are great for when I'm 
>> recording a symphony orchestra or a great jazz big band, but they are a 
>> waste in the ham shack.
>> 
>> 73, Jim K9YC
> 
> 
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Re: [Elecraft] [KX3] HI CUR error with 2m module

[Steve Ward]

Tried it again today and worked FB.  Suspect some cruft in the right angle
adaptor or the antenna itself. Some canned air and maybe some DeOxit might
be tried if problem reappears...

73,

On Sun, Jun 11, 2017 at 4:31 AM Don Wilhelm  wrote:

> Steve,
>
> Do you have a dummy load that is good up through 148MHz?
> If so, Connect it and see if you get the same error.
> If not, investigate your antenna and feedline.
> If it is still present, contact K3support.
>
> 73,
> Don W3FPR
>
> On 6/10/2017 8:08 PM, Steve Ward wrote:
> > I'm pretty sure I've seen something about this before.  I just got my
> > KX3-2M that I ordered at Sea-Pac, and installed it in my radio tonight.
> > Everything seems OK except when I try to transmit I get a HI CUR error
> > unless I keep output power below 1.2 watts.  I'm running from a 35A
> > linear PS so supply isn't the issue...
> >
> > The only thing I saw in the archive was a mention about a loose SMA
> > connector, but everything looks OK in that respect.  Any thoughts?
> >
> > Thanks,
> >
> > Steve
> > AD7OG
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> >
>
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Re: [Elecraft] 6m off-frequency

[Ian Kahn, KM4IK]

Thanks, Don. I'll give that a try and post results here later.

73 de,

--Ian
Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624  North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468

-Original Message-
From: Don Wilhelm [mailto:donw...@embarqmail.com] 
Sent: Sunday, June 11, 2017 12:55 PM
To: Ian Kahn, KM4IK ; 'Ron Manfredi' 
; elecraft@mailman.qth.net
Subject: Re: [Elecraft] 6m off-frequency

Ian,

Can you receive any station at a known frequency.  Here in the US it is easy to 
use WWV, but other standard frequency stations exist around the world.

Tune to the standard frequency station and do the Reference Oscillator 
Calibration.  K3 manual page 50.  Use Method 2.

I cannot guarantee it will fix the problem, but it is the first thing to try.

73,
Don W3FPR

On 6/11/2017 12:16 PM, Ian Kahn, KM4IK wrote:
> Ron/All,
> 
> As I state in my original email, I don't have this issue on any other band.
> The first couple of times other ops reported me off frequency a bit, I 
> thought the issue to be as you suggest - differences in how different 
> ops hear the signal, a 1-2 Hz difference, etc. However, EVERY operator 
> I tried to contact reported the same thing - that I am off frequency 
> by about 500 Hz, that I need to adjust my RIT (which is not enabled), 
> etc. That's why I'm concerned about a possible issue. I was also using 
> my P3 to tune to signals, so I feel fairly certain that I was, in 
> fact, on frequency as my receiver saw it.
> 

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Re: [Elecraft] 6m off-frequency

[Don Wilhelm]

Ian,

Can you receive any station at a known frequency.  Here in the US it is 
easy to use WWV, but other standard frequency stations exist around the 
world.


Tune to the standard frequency station and do the Reference Oscillator 
Calibration.  K3 manual page 50.  Use Method 2.


I cannot guarantee it will fix the problem, but it is the first thing to 
try.


73,
Don W3FPR

On 6/11/2017 12:16 PM, Ian Kahn, KM4IK wrote:

Ron/All,

As I state in my original email, I don't have this issue on any other band.
The first couple of times other ops reported me off frequency a bit, I
thought the issue to be as you suggest - differences in how different ops
hear the signal, a 1-2 Hz difference, etc. However, EVERY operator I tried
to contact reported the same thing - that I am off frequency by about 500
Hz, that I need to adjust my RIT (which is not enabled), etc. That's why I'm
concerned about a possible issue. I was also using my P3 to tune to signals,
so I feel fairly certain that I was, in fact, on frequency as my receiver
saw it.


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Re: [Elecraft] mic

[Milverton M. Swire via Elecraft]

Am I the only one here that is thinking.Why the CHASTISEMENT?!!!Clay did a 
little bit of "Experimenting" and! He is quickly, and promptly reminded thathe 
has broken PROTOCOL!
Isn't Ham Radio about Experimenting? 

73 Milverton / W9MMS.

  From: Clay Autery 
 To: elecraft@mailman.qth.net 
 Sent: Sunday, June 11, 2017 10:01 AM
 Subject: Re: [Elecraft] mic
   
Jim, we've already had this discussion.  

Man asked me what I was running, and I told him.  I like it.  It's a
wonderful mic.  It does the job. well!
I like nice things.  Not like I'm trying to use it on a DXpedition. 

I find pleasure in having, using, and BUILDING nice things.  It's not
about the money or doing the job If I wanted that, I'd still be
working a J-O-B.

As my Mamaw used to say, "Clay, that's why they make different flavors
of ice cream."

Have a great day!  

73,

__
Clay Autery, KY5G

On 6/11/2017 1:06 AM, Jim Brown wrote:
> On Sat,6/10/2017 8:02 PM, Clay Autery wrote:
>> Customized large capsule condenser mic on a Heil PL2T boom using ONYX
>> Blackjack for power supply/control.
>
> Sorry, but you guys are WAY over the edge on this. As a retired
> recording engineer, I own a bunch of great large and small diaphragm
> mics, both condensers and dynamics, that put these mics to shame, but
> I wouldn't waste any of them in a ham station. I'm VERY happy with a
> Yamaha CM500 since W6XU turned me on to it around 2009, at a fraction
> of the cost. It's plugged straight into the rear panel mic jack of my
> K3s (plural, not the new K3S). Any decent electret will work as well,
> especially with the EQ built into a K3, K3S, KX3, KX2. Those large
> diaphragm mics are great for when I'm recording a symphony orchestra
> or a great jazz big band, but they are a waste in the ham shack.
>
> 73, Jim K9YC

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Re: [Elecraft] 6m off-frequency

[Ian Kahn, KM4IK]

Ron/All,

As I state in my original email, I don't have this issue on any other band.
The first couple of times other ops reported me off frequency a bit, I
thought the issue to be as you suggest - differences in how different ops
hear the signal, a 1-2 Hz difference, etc. However, EVERY operator I tried
to contact reported the same thing - that I am off frequency by about 500
Hz, that I need to adjust my RIT (which is not enabled), etc. That's why I'm
concerned about a possible issue. I was also using my P3 to tune to signals,
so I feel fairly certain that I was, in fact, on frequency as my receiver
saw it.

Thanks and 73

Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624  North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468

-Original Message-
From: Ron Manfredi [mailto:wa2...@optonline.net] 
Sent: Sunday, June 11, 2017 11:55 AM
To: Ian Kahn ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] 6m off-frequency

Have you experienced this on other bands, during casual operating since the
rig was returned to you?

I find that when I am on SSB, I tune until my ear may likes what I am 
hearing , and as such,  I may not be exactly on their frequency.   (that 
is one reason for RIT!)  Also, I have found that some ops feel that they 
have to be tuned to an even frequency on their digital display.   For 
them, if you are on 14.219.8 and not on 14.220.0  then you are off
frequency.


Ron  WA2EIO


On 6/11/2017 11:45 AM, Ian Kahn wrote:
> All,
>
> I've been operating a little in the ARRL VHF contest this weekend, on 6m,
> and I'm having an interesting, and not good, experience. Everyone I try to
> work is reporting that I'm off frequency by about 500 Hz. I don't have
> RIT/XIT enabled. My K3, s/n 281, went to Elecraft earlier this year for
> some upgrades and a tune-up, and came back with a clean bill of health and
> meets/exceeds specs.
>
> I admit, I am new to 6m operation, but this constant report of being
> off-frequency concerns me. Is there some calibration step, specific to 6m,
> that I missed? I don't get this report on any other band, and have never
> gotten it in over 6 years of operating this rig. My assumption is that if
> it came back from the Mother Ship clean, and I've never used 6m before,
> that it should be properly calibrated.
>
> Any guidance/advice is greatly appreciated.
>
> Thanks and 73,
>
> --Ian
> Ian Kahn, KM4IK
> Roswell, GA  EM74ua
> km4ik@gmail.com
> 10-10 #74624  North Georgia Chapter #2038
> PODXS 070 #1962
> K3 #281, P3 #688 KAT500 #860, KPA500 #1468
> __
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> Message delivered to wa2...@optonline.net
>


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Re: [Elecraft] KX2 water resistant case

[Michael Walker]

I just checked my case.

Pelican 1200 and it hold everything I need without being too big.

For $40, it is a great deal
https://www.amazon.com/Pelican-1200-Case-Foam-Black/dp/B0002INQT2/ref=sr_1_1?ie=UTF8&qid=1497196900&sr=8-1&keywords=pelican+1200

Mike va3mw


On Sun, Jun 11, 2017 at 11:55 AM, Peter LaBissoniere  wrote:

> It depends on your needs. This $6 watertight case seems to fit for me. I
> will put this into my small Kelty sling bag (now they call it a tactical
> sling) and have plenty more space for extras, and carry hands free on my
> back. The big Pelican case is way too big and overkill in this scenario.
>
>
> > On Jun 10, 2017, at 11:02 PM, Augie Gus Hansen 
> wrote:
> >
> >
> >> On 6/10/2017 8:23 PM, kevino z wrote:
> >> I think the Pelican 1200 is a better fit for the KX2 or KX3, since it
> gives room for the Mic and the paddle (and heatsink if you have one).
> >
> > Agreed. I use the Pelican 1200 for the KX2 plus accessories, and the
> manual that I need to refer to from time to time fits perfectly, too.
> >
> > Gus Hansen
> > KB0YH
> >
> > __
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Re: [Elecraft] KX2 water resistant case

[Peter LaBissoniere]

It depends on your needs. This $6 watertight case seems to fit for me. I will 
put this into my small Kelty sling bag (now they call it a tactical sling) and 
have plenty more space for extras, and carry hands free on my back. The big 
Pelican case is way too big and overkill in this scenario.


> On Jun 10, 2017, at 11:02 PM, Augie Gus Hansen  
> wrote:
> 
> 
>> On 6/10/2017 8:23 PM, kevino z wrote:
>> I think the Pelican 1200 is a better fit for the KX2 or KX3, since it gives 
>> room for the Mic and the paddle (and heatsink if you have one).
> 
> Agreed. I use the Pelican 1200 for the KX2 plus accessories, and the manual 
> that I need to refer to from time to time fits perfectly, too.
> 
> Gus Hansen
> KB0YH
> 
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Re: [Elecraft] Counterpoises and Grounding

[David Cutter]

Hello Stan

My note is a little off topic because I like to remove the counterpoise all 
together by addressing the issue of common mode current.


I thought that, rather than getting embroiled with definitions, I would 
offer something different. You don't say what bands you operate but your 
crucial point is you are up in the sky so to speak and I've been there and 
suffered accordingly.


*Until recently* no commercial antenna manufacturer had conquered the mighty 
common mode current problem of the off-centre-fed dipole.  Since you run QRP 
you don't need anything big or heavy duty, you might consider the offerings 
from Spiderbeam. They currently do a 40m version which covers all bands to 
6m and your KX3 will handle any slight mis-match with ease.  A friend of 
mine ran one of these as a sloper out of his window using a KX3 and got 
excellent results.  No external tuning box or counterpoise is necessary, 
it's all handled in the special dual choke balun.  I understand they are 
working on an 80m version. I have no commercial connection with the company.


If you prefer to build your own aerials, then you can see the website for 
DJ0IP who in my opinion is now the world authority on these aerials having 
done more research and *practical testing* than anyone.  I doubt if that's 
an exaggeration.  On his website you will see how to make your own quite 
inexpensively.  There is also a lively and progressive forum dedicated to 
the ocfd.


If you would like to know more, do get in touch.

73

David
G3UNA

ps I use a special version of the ocfd called the end-connected off centre 
fed dipole.


- Original Message - 
From: "Stan GW3SRM" 

To: 
Sent: Saturday, June 10, 2017 7:40 PM
Subject: [Elecraft] Counterpoises and Grounding


I note that the subject of counterpoises has been debated many times in 
this

forum but I have not seen the subject of tuneable artificial grounds
discussed. As no doubt many are aware, operating from a location remote 
from
the ground has its problems in ensuring effective grounding, especially 
with

end fed wire antennas. I have this problem as I operate from an upstairs
shack. I have overcome the difficulty by using a tuneable counterpoise
arrangement in conjunction with my end fed wire antenna. The EFW antenna 
is

approximately 66ft (20m) long and the counterpoise wire 16ft (5m).

Using my homebrew AGT and my KX3 is a simple process to tune for 
resonance.
a) Tune to the desired frequency using the internal KX3 auto tuner. b) 
Tune
for maximum current using the AGT meter (low power recommended for 
tuning).

Repeat the process as necessary to obtain best match. Usually 1:0 or 1:1
(KX3 reading). I only operate with 5 or 10 Watts. Apart from overcoming
grounding problems you get a resonate grounding system not an 
approximately

resonate one as used in most circumstances. This in my view, is a suitable
compromise in overcoming difficult grounding conditions, although I do not
advocate it in preference to an extensive grounding system where 
conditions

permit. One point to note is that if an external power supply is used the
output must be isolated from ground and suitable precautions taken against
lighting strikes. Many designs for simple homebrew AFT projects are
available on the web and MFJ also do one commercially. Obviously different
or different multiple lengths of counterpoise wires can be used to get the
best setup with your antenna.



73 Stan GW3SRM



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Re: [Elecraft] 6m off-frequency

[Ron Manfredi]

Have you experienced this on other bands, during casual operating since 
the rig was returned to you?


I find that when I am on SSB, I tune until my ear may likes what I am 
hearing , and as such,  I may not be exactly on their frequency.   (that 
is one reason for RIT!)  Also, I have found that some ops feel that they 
have to be tuned to an even frequency on their digital display.   For 
them, if you are on 14.219.8 and not on 14.220.0  then you are off 
frequency.



Ron  WA2EIO


On 6/11/2017 11:45 AM, Ian Kahn wrote:

All,

I've been operating a little in the ARRL VHF contest this weekend, on 6m,
and I'm having an interesting, and not good, experience. Everyone I try to
work is reporting that I'm off frequency by about 500 Hz. I don't have
RIT/XIT enabled. My K3, s/n 281, went to Elecraft earlier this year for
some upgrades and a tune-up, and came back with a clean bill of health and
meets/exceeds specs.

I admit, I am new to 6m operation, but this constant report of being
off-frequency concerns me. Is there some calibration step, specific to 6m,
that I missed? I don't get this report on any other band, and have never
gotten it in over 6 years of operating this rig. My assumption is that if
it came back from the Mother Ship clean, and I've never used 6m before,
that it should be properly calibrated.

Any guidance/advice is greatly appreciated.

Thanks and 73,

--Ian
Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624  North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468
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[Elecraft] KPA500 in host/server mode - intermittent failures

[Michael Walker]

I am having an issue with the KPA500 software.

It works fine on one PC, but when you use it in client/server mode, which I
do a lot, It randomly fails on the the client PC.  I can see what it is
doing, but no joy for any commands.  It has worked at times.  it is also
not a timeout issue.

The network is both devices on the same subnet plugged into the same switch
with 3ft cables.  Other applications like PSTRotatorAZ work fine when doing
something similar.

The ports and ip addresses are correct.  One other ham friend of mine
reports the same intermittent failure.

Is anyone else using this mode and having similar issues?

Mike va3mw

ps.  I would include screen shots, but the small image size restriction
makes is hard to do.
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[Elecraft] 6m off-frequency

[Ian Kahn]

All,

I've been operating a little in the ARRL VHF contest this weekend, on 6m,
and I'm having an interesting, and not good, experience. Everyone I try to
work is reporting that I'm off frequency by about 500 Hz. I don't have
RIT/XIT enabled. My K3, s/n 281, went to Elecraft earlier this year for
some upgrades and a tune-up, and came back with a clean bill of health and
meets/exceeds specs.

I admit, I am new to 6m operation, but this constant report of being
off-frequency concerns me. Is there some calibration step, specific to 6m,
that I missed? I don't get this report on any other band, and have never
gotten it in over 6 years of operating this rig. My assumption is that if
it came back from the Mother Ship clean, and I've never used 6m before,
that it should be properly calibrated.

Any guidance/advice is greatly appreciated.

Thanks and 73,

--Ian
Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624  North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468
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Re: [Elecraft] mic

[Clay Autery]

See my earlier responses to both gentlemen.  

1) Frequency response  yep, understand and agree.  One of the things
I learned from one of Jim's papers as a matter of fact.  Which is why I
modified the mic design slightly to produce a frequency response curve
more suited to amateur radio and as clean as I could possibly make it
within my resources.  Thanks, Jim.
2) Also why I use Jim's recommendations for TX EQ on the K3s as a
starting place to NOT waste power.  Thanks again, Jim!

I don't consider it EVER a "waste" when I 1) learn new stuff, and 2)
have fun... which of of course my primary motivation for doing ANY of
this in the first place.
And the "brand name" on my microphone is "Autery" or "KY5G".  

Have a super Sunday!!

__
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389

On 6/11/2017 9:39 AM, Joe Subich, W4TV wrote:
> Mics of any kind - dynamic or condenser/electret - with wide frequency
> response are completely wasted for amateur radio (or any communications
> application).  You really want a clean 200 Hz - 4 Hz response.  Lower
> frequencies cause distortion and waste power, higher frequencies are
> simply lost in the "channel noise".
>
> Like Bob and Jim, I spent my professional life in the recording and
> broadcast industries.  Amateurs waste far too much on over spec'd
> microphones and fancy "brand name" advertising campaigns.
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Re: [Elecraft] mic

[Raymond Sills]

Hi Gang:


I'll add my agreement with what other professionals have said.  And, I'm a 
retired Technical Supervisor for Audio and Post Production at CBS-TV.  We had a 
ton of really good microphones at our disposal.  But I use the MH3 with my KX3 
for those rare times I use a voice mode.  Most of the time, I operate CW.  :)  
If I did more voice operating, I'd get that Yamaha headset/mic combo.


73 de Ray
K2ULR
KX3 #211






-Original Message-
From: Joe Subich, W4TV 
To: elecraft 
Sent: Sun, Jun 11, 2017 10:40 am
Subject: Re: [Elecraft] mic


Bob and Jim have excellent points.

There is one advantage for the electret mic compared to a dynamic
mic.  Electrets are generally 26 dB "hotter" than a dynamic mic
and thus are much more resistant to common mode RF feedback and
magnetic coupling.  However, that assumes the transceiver is
designed for the higher input level and properly reduces gain
before the mic gain control.

Mics of any kind - dynamic or condenser/electret - with wide frequency
response are completely wasted for amateur radio (or any communications
application).  You really want a clean 200 Hz - 4 Hz response.  Lower
frequencies cause distortion and waste power, higher frequencies are
simply lost in the "channel noise".

Like Bob and Jim, I spent my professional life in the recording and
broadcast industries.  Amateurs waste far too much on over spec'd
microphones and fancy "brand name" advertising campaigns.

73,

... Joe, W4TV


On 6/11/2017 9:29 AM, Bob McGraw K4TAX wrote:
> On Jim's points, I fully agree.  It seems hams are prone to over 
> complicate a rather simple issue.  There's more than adequate mike gain 
> in the K3S, thus I  find no technical reason for the use of an external 
> preamp.   The internal EQ of the K3S again is most adequate to correctly 
> tailor communications audio, even ESSB.
> 
> I've found mike technique to be a very important factor in good quality 
> audio.  From personal observations, many hams have and use poor mike 
> technique.The mike-to-mouth position is most critical and will vary 
> with different mikes.
> 
> Like Jim, I'm a retired recording studio engineer and a live stage 
> performance engineer.  Nothing but experience and learning from the 
> experts will improve what you do.
> 
> 73
> Bob, K4TAX
> 
> 
> 
> On 6/11/2017 1:06 AM, Jim Brown wrote:
>> On Sat,6/10/2017 8:02 PM, Clay Autery wrote:
>>> Customized large capsule condenser mic on a Heil PL2T boom using ONYX
>>> Blackjack for power supply/control.
>>
>> Sorry, but you guys are WAY over the edge on this. As a retired 
>> recording engineer, I own a bunch of great large and small diaphragm 
>> mics, both condensers and dynamics, that put these mics to shame, but 
>> I wouldn't waste any of them in a ham station. I'm VERY happy with a 
>> Yamaha CM500 since W6XU turned me on to it around 2009, at a fraction 
>> of the cost. It's plugged straight into the rear panel mic jack of my 
>> K3s (plural, not the new K3S). Any decent electret will work as well, 
>> especially with the EQ built into a K3, K3S, KX3, KX2. Those large 
>> diaphragm mics are great for when I'm recording a symphony orchestra 
>> or a great jazz big band, but they are a waste in the ham shack.
>>
>> 73, Jim K9YC
> 
> 
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Re: [Elecraft] mic

[Clay Autery]

Well, in my admittedly inferior level of "studio engineering" skills and
experience, I must be the proverbial "blind hog", because I seemed to
have "accidentally" "tripped across" a combination and setup that does
the job well.  

As I told Jim, today and the last time we had this discussion.  Man
asked me what I run, and I told him.
For some folks, it's not just about doing it cheaply, not about doing it
efficiently, etc, etc...
Everyone has their own reasons why they do what they do.
I "built" and customized this mic because I wanted to do it.  It was
FUN, and that's why I use my increasingly limited time on this earth in
amateur radio.  To have fun.  

It was an excellent academic and skills exercise, too.  And one simply
cannot argue with the results.  No less than 15 people have offered to
buy the setup sight unseen.

But, don't despair...  I still read everything you smart guys write, and
I use every little tidbit I can.  I've done my best to surround myself
with smart folks all my life.

e.g. in this instance, I used Jim's recommendations as a starting point
to set up the TX EQ on the K3s...  THANK YOU, Jim!  

73 and have a wonderful Sunday!

PS - When the mic project started, I was ALSO building a small studio
setup to do voice-over work.  

__
Clay Autery, KY5G

On 6/11/2017 8:29 AM, Bob McGraw K4TAX wrote:
> On Jim's points, I fully agree.  It seems hams are prone to over
> complicate a rather simple issue.  There's more than adequate mike
> gain in the K3S, thus I  find no technical reason for the use of an
> external preamp.   The internal EQ of the K3S again is most adequate
> to correctly tailor communications audio, even ESSB.
>
> I've found mike technique to be a very important factor in good
> quality audio.  From personal observations, many hams have and use
> poor mike technique.The mike-to-mouth position is most critical
> and will vary with different mikes.
>
> Like Jim, I'm a retired recording studio engineer and a live stage
> performance engineer.  Nothing but experience and learning from the
> experts will improve what you do.
>
> 73
> Bob, K4TAX

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Re: [Elecraft] Counterpoises and Grounding

[Jim Ewing]

As someone relatively unversed in grounding and counterpoises, this thread
has been very useful to me, so thanks to Fred and Jim.

That said, Jesse Colin Young advised us thusly back in the 60's,

Come on people now,
Smile on your brother
Everybody get together
Got to love one another
Right now.

Peace and 73,

Jim Ewing
N4TMM
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Re: [Elecraft] mic

[Clay Autery]

Jim, we've already had this discussion.  

Man asked me what I was running, and I told him.  I like it.  It's a
wonderful mic.  It does the job. well!
I like nice things.  Not like I'm trying to use it on a DXpedition. 

I find pleasure in having, using, and BUILDING nice things.  It's not
about the money or doing the job If I wanted that, I'd still be
working a J-O-B.

As my Mamaw used to say, "Clay, that's why they make different flavors
of ice cream."

Have a great day!  

73,

__
Clay Autery, KY5G

On 6/11/2017 1:06 AM, Jim Brown wrote:
> On Sat,6/10/2017 8:02 PM, Clay Autery wrote:
>> Customized large capsule condenser mic on a Heil PL2T boom using ONYX
>> Blackjack for power supply/control.
>
> Sorry, but you guys are WAY over the edge on this. As a retired
> recording engineer, I own a bunch of great large and small diaphragm
> mics, both condensers and dynamics, that put these mics to shame, but
> I wouldn't waste any of them in a ham station. I'm VERY happy with a
> Yamaha CM500 since W6XU turned me on to it around 2009, at a fraction
> of the cost. It's plugged straight into the rear panel mic jack of my
> K3s (plural, not the new K3S). Any decent electret will work as well,
> especially with the EQ built into a K3, K3S, KX3, KX2. Those large
> diaphragm mics are great for when I'm recording a symphony orchestra
> or a great jazz big band, but they are a waste in the ham shack.
>
> 73, Jim K9YC

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Re: [Elecraft] mic

[Joe Subich, W4TV]

Bob and Jim have excellent points.

There is one advantage for the electret mic compared to a dynamic
mic.  Electrets are generally 26 dB "hotter" than a dynamic mic
and thus are much more resistant to common mode RF feedback and
magnetic coupling.  However, that assumes the transceiver is
designed for the higher input level and properly reduces gain
before the mic gain control.

Mics of any kind - dynamic or condenser/electret - with wide frequency
response are completely wasted for amateur radio (or any communications
application).  You really want a clean 200 Hz - 4 Hz response.  Lower
frequencies cause distortion and waste power, higher frequencies are
simply lost in the "channel noise".

Like Bob and Jim, I spent my professional life in the recording and
broadcast industries.  Amateurs waste far too much on over spec'd
microphones and fancy "brand name" advertising campaigns.

73,

   ... Joe, W4TV


On 6/11/2017 9:29 AM, Bob McGraw K4TAX wrote:
On Jim's points, I fully agree.  It seems hams are prone to over 
complicate a rather simple issue.  There's more than adequate mike gain 
in the K3S, thus I  find no technical reason for the use of an external 
preamp.   The internal EQ of the K3S again is most adequate to correctly 
tailor communications audio, even ESSB.


I've found mike technique to be a very important factor in good quality 
audio.  From personal observations, many hams have and use poor mike 
technique.The mike-to-mouth position is most critical and will vary 
with different mikes.


Like Jim, I'm a retired recording studio engineer and a live stage 
performance engineer.  Nothing but experience and learning from the 
experts will improve what you do.


73
Bob, K4TAX



On 6/11/2017 1:06 AM, Jim Brown wrote:

On Sat,6/10/2017 8:02 PM, Clay Autery wrote:

Customized large capsule condenser mic on a Heil PL2T boom using ONYX
Blackjack for power supply/control.


Sorry, but you guys are WAY over the edge on this. As a retired 
recording engineer, I own a bunch of great large and small diaphragm 
mics, both condensers and dynamics, that put these mics to shame, but 
I wouldn't waste any of them in a ham station. I'm VERY happy with a 
Yamaha CM500 since W6XU turned me on to it around 2009, at a fraction 
of the cost. It's plugged straight into the rear panel mic jack of my 
K3s (plural, not the new K3S). Any decent electret will work as well, 
especially with the EQ built into a K3, K3S, KX3, KX2. Those large 
diaphragm mics are great for when I'm recording a symphony orchestra 
or a great jazz big band, but they are a waste in the ham shack.


73, Jim K9YC



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Re: [Elecraft] mic

[Bob McGraw K4TAX]

On Jim's points, I fully agree.  It seems hams are prone to over 
complicate a rather simple issue.  There's more than adequate mike gain 
in the K3S, thus I  find no technical reason for the use of an external 
preamp.   The internal EQ of the K3S again is most adequate to correctly 
tailor communications audio, even ESSB.


I've found mike technique to be a very important factor in good quality 
audio.  From personal observations, many hams have and use poor mike 
technique.The mike-to-mouth position is most critical and will vary 
with different mikes.


Like Jim, I'm a retired recording studio engineer and a live stage 
performance engineer.  Nothing but experience and learning from the 
experts will improve what you do.


73
Bob, K4TAX



On 6/11/2017 1:06 AM, Jim Brown wrote:

On Sat,6/10/2017 8:02 PM, Clay Autery wrote:

Customized large capsule condenser mic on a Heil PL2T boom using ONYX
Blackjack for power supply/control.


Sorry, but you guys are WAY over the edge on this. As a retired 
recording engineer, I own a bunch of great large and small diaphragm 
mics, both condensers and dynamics, that put these mics to shame, but 
I wouldn't waste any of them in a ham station. I'm VERY happy with a 
Yamaha CM500 since W6XU turned me on to it around 2009, at a fraction 
of the cost. It's plugged straight into the rear panel mic jack of my 
K3s (plural, not the new K3S). Any decent electret will work as well, 
especially with the EQ built into a K3, K3S, KX3, KX2. Those large 
diaphragm mics are great for when I'm recording a symphony orchestra 
or a great jazz big band, but they are a waste in the ham shack.


73, Jim K9YC



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Re: [Elecraft] mic

[Brian Denley]

Agreed Jim but I haven't spent much money on any of the mic stuff and I also 
used a cheap ($40) headset rather frequently.  I do, however, prefer the 
dynamic mics.  The condensers that I have tried seem to pick up way too much 
background noise.

Brian 
KB1VBF
Sent from my iPad

> On Jun 11, 2017, at 2:06 AM, Jim Brown  wrote:
> 
>> On Sat,6/10/2017 8:02 PM, Clay Autery wrote:
>> Customized large capsule condenser mic on a Heil PL2T boom using ONYX
>> Blackjack for power supply/control.
> 
> Sorry, but you guys are WAY over the edge on this. As a retired recording 
> engineer, I own a bunch of great large and small diaphragm mics, both 
> condensers and dynamics, that put these mics to shame, but I wouldn't waste 
> any of them in a ham station. I'm VERY happy with a Yamaha CM500 since W6XU 
> turned me on to it around 2009, at a fraction of the cost. It's plugged 
> straight into the rear panel mic jack of my K3s (plural, not the new K3S). 
> Any decent electret will work as well, especially with the EQ built into a 
> K3, K3S, KX3, KX2. Those large diaphragm mics are great for when I'm 
> recording a symphony orchestra or a great jazz big band, but they are a waste 
> in the ham shack.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] [KX3] HI CUR error with 2m module

[Don Wilhelm]

Steve,

Do you have a dummy load that is good up through 148MHz?
If so, Connect it and see if you get the same error.
If not, investigate your antenna and feedline.
If it is still present, contact K3support.

73,
Don W3FPR

On 6/10/2017 8:08 PM, Steve Ward wrote:
I'm pretty sure I've seen something about this before.  I just got my 
KX3-2M that I ordered at Sea-Pac, and installed it in my radio tonight. 
Everything seems OK except when I try to transmit I get a HI CUR error 
unless I keep output power below 1.2 watts.  I'm running from a 35A 
linear PS so supply isn't the issue...


The only thing I saw in the archive was a mention about a loose SMA 
connector, but everything looks OK in that respect.  Any thoughts?


Thanks,

Steve
AD7OG
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Re: [Elecraft] Counterpoises and Grounding

[Stan GW3SRM]

I note the comments generated by this topic. I must admit the use of the
term 'tuneable artificial ground' generated some controversy but it is
widely used in both amateur and commercial literature. Perhaps 'tuneable
counterpoise' would have been better and the term 'artificial' is
superfluous. Safety earthing (grounding) is of course used for protection in
our 50Hz mains power distribution system, lightning protection etc. The
counterpoise is of course part of the antenna system described and I thought
antenna radiation and earth conductivity were well understood.

I regret that my submission should have created such heated comments.

 

Nuf said.

 

73 Stan GW3SRM

 

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Re: [Elecraft] MH3 rattle?

[Christopher Hoover]

RMA?

On Sun, Jun 11, 2017 at 4:39 PM, Brad J. Butler via Elecraft <
elecraft@mailman.qth.net> wrote:

> Good morning everyone,
>
>
>
> I've got a new MH3 that hasn't ever been dropped.  When I *gently* shake
> it,
> I hear something rattling around in it.like a spring of some sort.  Is that
> normal?  If I "roll" it in all different directions, I don't hear anything
> rolling around on the inside, so there's nothing that has come loose, just
> a
> little something that's shaking around if I gently shake it side to side.
>
>
>
> Thanks!
>
>
>
> -Brad Butler
>
> W6BJB/JS6TQS
>
>
>
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[Elecraft] MH3 rattle?

[Brad J. Butler via Elecraft]

Good morning everyone,

 

I've got a new MH3 that hasn't ever been dropped.  When I *gently* shake it,
I hear something rattling around in it.like a spring of some sort.  Is that
normal?  If I "roll" it in all different directions, I don't hear anything
rolling around on the inside, so there's nothing that has come loose, just a
little something that's shaking around if I gently shake it side to side.

 

Thanks!

 

-Brad Butler

W6BJB/JS6TQS

 

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