date:20160426

Sorry Freudian slip near the end corrected..   direct conversion changed to 
direct sampling ;-).

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Chris 
Tate - N6WM
Sent: Tuesday, April 26, 2016 9:08 PM
To: Joe Subich, W4TV ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Sherwood's receiver performance table updated

Joet, interesting comments but perhaps misses a few conditions of the higher 
end Direct conversion systems.  And thanks to Eric for allowing a relatively 
architecturally agnostic discussion on the reflector.

My responses below.  I will stick to my guns that both platforms have different 
advantages and disadvantages..   and its probably most accurate to leave it at 
that.

While I do not know for sure, I suspect K9CT is using bandpass filters and 
stubs to prevent inter-station interference in his multi-multi operation just 
as he did when he used conventional transceivers.  With properly designed 
bandpass filters, stubs and the preselectors in his 6700s he's not likely to 
have a severe overload issue unless he happens to be close to some high power 
AM stations (on 160 meters) and even then indications are that a good highpass 
filter and 10 to 15 dB of attenuation will resolve the problems with a 16 bit 
ADC.

N6WM-  Most certainly.  I have operated a flex 6500 in one major multi-op 
contest at N6RO and a 6700 in another one.  In both cases external filtering 
was used.  It was unbothered by near field interstation interference any more 
or less than a K3, and I did operate 40m for WPX SSB (and nearly broke the 
station record for that band).

I have not heard any reports of large multi-multi stations switching to direct 
sampling transceivers in areas of Europe where the 40 meter SW broadcast was a 
problem for many decades.

N6WM- This is a good point I would be interested in hearing data or testing on 
this.

The point is that direct conversion receivers need either good filters *ahead 
of the ADC*, attenuation or both to prevent problems.  When one uses a Flex 
6300 *which has no preselector*,  Flex 6500 on multiple bands (which bypasses 
the preselector), an ELAD DUO which has no preselector, etc. one must make a 
choice between sensitivity and dynamic range.  The ARRL lab tests show that, 
Sherwood's tests show that, Adam Farson's noise power ratio testing shows that, 
and other reviewers hint at the problem but they simply don't understand direct 
sampling well enough to recognize its limits when they see them.

N6WM- ah a good point.  These options are available in one form or another 
(external filtering)  and of course we use this with our K3's or any radio in a 
multi.  Also, many of the high end ones have 2 scu (6700) allowing dual band 
operation simultaneously without disengaging the band preselectors.

One needs to understand the nature of direct sampling receivers and the way 
they react to overload to recognize the behavior but the test data is 
unequivocal.  16 bit ADCs are probably 4 to 6 bits "short" of being able to 
handle worst case signal levels while simultaneously providing maximum 
sensitivity (MDS of -135 to -140 dBm in 500 Hz) and fully broad band 
performance (multiple slice receivers on multiple amateur bands).

N6WM-  This does create some limits, but In the case of the 6700 you can have 
multiple slices on 2 simultaneous bands and avoid disengaging the 
preselectors  how many does one need to operate at a time?  2 needed for 
SO2R.

N6WM- these are different architectures with different challenges.  The Direct 
conversion architecture is the new kid on the block and many of the features to 
enhance them are not there yet or are in an infant state.  That does not say 
that the technology is unusable or if one or the other is better.. they are 
just different.   

Make no mistake.. I love my Elecraft K line.  It has won me many contests and 
has served me well for (omg!) 8 years. I remember all the different mods we 
needed to add to the K3 in the beginning.. and the numerous software updates 
that fixed bugs and added features I also find the higher end Direct 
sampling systems fascinating as they solve a number of challenges I have run 
into over the years and they are on the fast track to coming of age.   

 Also make no mistake..  despite the differences in architecture, challenges 
and advantages, both the systems in this email are competition grade 
transceivers.  Check 3830. 

Ineresting stuff!

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Home:

Re: [Elecraft] Sherwood's receiver performance table updated

Joet, interesting comments but perhaps misses a few conditions of the higher 
end Direct conversion systems.  And thanks to Eric for allowing a relatively 
architecturally agnostic discussion on the reflector.


My responses below.  I will stick to my guns that both platforms have different 
advantages and disadvantages..   and its probably most accurate to leave it at 
that.


While I do not know for sure, I suspect K9CT is using bandpass filters and 
stubs to prevent inter-station interference in his multi-multi operation just 
as he did when he used conventional transceivers.  With properly designed 
bandpass filters, stubs and the preselectors in his 6700s he's not likely to 
have a severe overload issue unless he happens to be close to some high power 
AM stations (on 160 meters) and even then indications are that a good highpass 
filter and 10 to 15 dB of attenuation will resolve the problems with a 16 bit 
ADC.

N6WM-  Most certainly.  I have operated a flex 6500 in one major multi-op 
contest at N6RO and a 6700 in another one.  In both cases external filtering 
was used.  It was unbothered by near field interstation interference any more 
or less than a K3, and I did operate 40m for WPX SSB (and nearly broke the 
station record for that band).

I have not heard any reports of large multi-multi stations switching to direct 
sampling transceivers in areas of Europe where the 40 meter SW broadcast was a 
problem for many decades.

N6WM- This is a good point I would be interested in hearing data or testing on 
this.

The point is that direct conversion receivers need either good filters *ahead 
of the ADC*, attenuation or both to prevent problems.  When one uses a Flex 
6300 *which has no preselector*,  Flex 6500 on multiple bands (which bypasses 
the preselector), an ELAD DUO which has no preselector, etc. one must make a 
choice between sensitivity and dynamic range.  The ARRL lab tests show that, 
Sherwood's tests show that, Adam Farson's noise power ratio testing shows that, 
and other reviewers hint at the problem but they simply don't understand direct 
sampling well enough to recognize its limits when they see them.

N6WM- ah a good point.  These options are available in one form or another 
(external filtering)  and of course we use this with our K3's or any radio in a 
multi.  Also, many of the high end ones have 2 scu (6700) allowing dual band 
operation simultaneously without disengaging the band preselectors.

One needs to understand the nature of direct sampling receivers and the way 
they react to overload to recognize the behavior but the test data is 
unequivocal.  16 bit ADCs are probably 4 to 6 bits "short" of being able to 
handle worst case signal levels while simultaneously providing maximum 
sensitivity (MDS of -135 to -140 dBm in 500 Hz) and fully broad band 
performance (multiple slice receivers on multiple amateur bands).

N6WM-  This does create some limits, but In the case of the 6700 you can have 
multiple slices on 2 simultaneous bands and avoid disengaging the 
preselectors  how many does one need to operate at a time?  2 needed for 
SO2R.

N6WM- these are different architectures with different challenges.  The Direct 
conversion architecture is the new kid on the block and many of the features to 
enhance them are not there yet or are in an infant state.  That does not say 
that the technology is unusable or if one or the other is better.. they are 
just different.   

Make no mistake.. I love my Elecraft K line.  It has won me many contests and 
has served me well for (omg!) 8 years. I remember all the different mods we 
needed to add to the K3 in the beginning.. and the numerous software updates 
that fixed bugs and added features I also find the higher end Direct 
conversion systems fascinating as they solve a number of challenges I have run 
into over the years and they are on the fast track to coming of age.   

 Also make no mistake..  despite the differences in architecture, challenges 
and advantages, both the systems in this email are competition grade 
transceivers.  Check 3830. 

Ineresting stuff!




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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Barry LaZar


Joe,
I agree with you basically. I think it's just the manor in which you 
state the problem.


You touch on the real problem 14-16 bits of sampling vice having 
more bits in the sample. It's not specifically the direct sampling 
architecture. I think the radio companies just can't get 24 bit ADCs 
fast enough to do direct sampling at commodity pricing which would allow 
direct sampling with out the baggage. If I can do 24 bit sampling and 
high and low pass filtering, I can simplify receiver design AND have a 
an acceptable dynamic range. Multiple instances of DSP processing of the 
24 bit samples will allow as many virtual receivers, slices, as 
processor power will allow. My guess is we are on the verge of getting 
to where we would like to be.


Flex is using a 16 bit ADC and I'm not sure what the 7300 is using, 
but I infer it, too, is 16 bit. I do believe that the Elecraft 
architectures are all based on 24 bit sampling. The Elecraft designs 
should be tolerant to serious environmental abuse short of a local 
thunderstorm.


Our comments reflect a rigorous tech discussion. But, there is 
another issue that has not been discussed in anything I've read so far, 
ultimate filter rejection. Flex, Kenwood, and Elecraft have filtering 
that runs in the 100 db region, or a little better. I saw that the 
IC-7300 is about 20 db worse. What that means if you are a CW operator, 
serious or otherwise, and there is a pile up on a DX station, a contest, 
or just a really busy weekend, you may have problems from strong 
stations not too far away while you are trying to work an S1-3 station. 
SSB operators have other problems like splatter and no amount of superb 
design will fix that.


I'm pleased there is a vigorous discussion on the new radios. It 
helps push the designers and the technology.


73,
Barry
K3NDM


-- Original Message --
From: "Joe Subich, W4TV" 
To: elecraft@mailman.qth.net
Sent: 4/26/2016 10:10:32 PM an
Subject: Re: [Elecraft] Sherwood's receiver performance table updated


On 4/26/2016 8:08 PM, Kevin Stover wrote:

Everybody is ignoring W4TV's 800lb Gorilla, ADC overload.


I can't take credit for that ... the warning comes from some of the
best RF designers in the world.  Direct sampling receivers are very
good in controlled situations.  Unfortunately, those who are used to
analog superhetrodyne receivers do not recognize the symptoms of ADC
overload/overflow in many cases.

The overflow can show up as an occasional click or pop if the number
and strength of signals continues to increase conditions go down hill
very rapidly.  The best 16 bit ADC based SDRs can and do show very
significant overload issues when run without effective front end
bandpass filtering in high RF environments (160 meters near AM BC
stations, 40 meters in Europe, 160 meters in New England during a
contest, etc.).

One can apply filtering (which Icom seems to have done in the 7300),
apply attenuation (which Flex seems to have done in the 6000 series)
or both.  Filtering limits the number and width of "slice receivers"
while attenuation kills weak signal performance.

I find Icom's implementation interesting in that they are using the
technology as a single band, single channel receiver (they could have
added Dual RX within the same band at practically no hardware cost) - 
an application where, with tight bandpass filtering, direct sampling

may be ready to compete as indicated by the fact that Sherwood's tests
place the 7300's above some "good" conventional rigs like the Ten-Tec
Eagle, Kenwood TS-590SG and TS-990 in MDS, LO Phase noise and IMD DR.

However, for the ultimate multi-channel receiver, ADC technology is
still 4 to 6 bits short as witnessed by the need for 12 to 20 dB of
attenuation in the Flex 6000 or the 0 to 30 dB electronically stepped
attenuators in some of the other products like the Anan, Hermes, etc.
Sherwood's results hint at this when comparing the MDS with the
preamp on and preamp off ... even with its preamp on the Flex 6700
MDS is the same as the K3S with *no preamp*!

73,

   ... Joe, W4TV

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Re: [Elecraft] Wattmeter for K3s Calibration


Clay,

I see nothing in the K3 manual about Tune PWR calibration.
There is the wattmeter calibration for which you need a good 50 ohm 
dummy load and a wattmeter that you can trust.
The other is the TX Gain Calibration which needs only a good 50 ohm 
dummy load.


If those are both done, then your TUNE PWR setting will be accurate.

73,
Don W3FPR

On 4/26/2016 11:15 PM, Clay Autery wrote:

Not referring to the XMTR Gain cal...  talking about the Tune PWR cals...




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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Joe Subich, W4TV

On 4/26/2016 10:15 PM, Robert Vargas-KP4Y via Elecraft wrote:

Just that you know, K9CT has one of the finest contesting station in

> the US. He has switched to direct-sampling SDRs (Flex-6700). Just ask
> him if this architecture is 5 years away from being competitive.

While I do not know for sure, I suspect K9CT is using bandpass filters
and stubs to prevent inter-station interference in his multi-multi
operation just as he did when he used conventional transceivers.  With
properly designed bandpass filters, stubs and the preselectors in his
6700s he's not likely to have a severe overload issue unless he happens
to be close to some high power AM stations (on 160 meters) and even
then indications are that a good highpass filter and 10 to 15 dB of
attenuation will resolve the problems with a 16 bit ADC.

I have not heard any reports of large multi-multi stations switching to
direct sampling transceivers in areas of Europe where the 40 meter SW
broadcast was a problem for many decades.

The point is that direct conversion receivers need either good filters
*ahead of the ADC*, attenuation or both to prevent problems.  When one
uses a Flex 6300 *which has no preselector*,  Flex 6500 on multiple
bands (which bypasses the preselector), an ELAD DUO which has no
preselector, etc. one must make a choice between sensitivity and
dynamic range.  The ARRL lab tests show that, Sherwood's tests show
that, Adam Farson's noise power ratio testing shows that, and other
reviewers hint at the problem but they simply don't understand direct
sampling well enough to recognize its limits when they see them.

One needs to understand the nature of direct sampling receivers and the
way they react to overload to recognize the behavior but the test data
is unequivocal.  16 bit ADCs are probably 4 to 6 bits "short" of being
able to handle worst case signal levels while simultaneously providing
maximum sensitivity (MDS of -135 to -140 dBm in 500 Hz) and fully broad
band performance (multiple slice receivers on multiple amateur bands).

73,

  ... Joe, W4TV

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Re: [Elecraft] Wattmeter for K3s Calibration

Not referring to the XMTR Gain cal...  talking about the Tune PWR cals... 

I have a decent dummy load I think...  It's a Navy DA-412/U (50-Ohm,
600W continuous, 900 W for 15 minutes).  It has no measurable reactance
0-30 MHz, and less than 2 Ohm up to 400MHz...  at least according to the
analyzer I had access to.
Will likely get a precision 50-Ohm dummy load for cal purposes since it
only needs to be 5 and 50 W for the cals...

I'm a bit OCD on certain things...  like eliminating variables on basic
cals so I don't have to worry about my end during ops.


__
Clay Autery, KG5LKV
MONTAC Enterprises
(318) 518-1389

On 4/26/2016 9:57 PM, Ron D'Eau Claire wrote:
> For the Transmitter Gain calibration, all you need is a decent dummy load.
> The LP-100A is not a dummy load. My 20-year old inexpensive MFJ dummy load
> does a good job for that. (But note it has never been abused, such as
> running power into it until it gets hot or smells.) A well designed dummy
> load will have very little reactance from stray capacitance or inductance.
> That leaves only the value of the resistive element, which you can check
> with your DMM. It's the resistive element that is most susceptible to damage
> from overheating it, just like any other resistor.  
>
> For calibrating the wattmeter in your K3S beyond the factory setting,
> whatever makes you happy is perfect. There is no operational or performance
> advantage to "improving" the factory settings. The LP-100A claims 3% power
> display accuracy which is much better than most (if the claims are true).
> For example, the ARRL lab is quoted in their manual saying "They specify
> their measurement error for power as +/- 5%, and for PEP power, +/- 8%."
> Note the +/- meaning the power error may vary by 10% for constant carrier
> and 16% PEP. Those are much more typical values for good, even lab quality
> power measurement equipment.   
>
> 73, Ron AC7AC 
>
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Clay
> Autery
> Sent: Tuesday, April 26, 2016 6:50 PM
> To: Elecraft Reflector
> Subject: [Elecraft] Wattmeter for K3s Calibration
>
> Would the LP-100A meet the accuracy/precision requirements to do the power
> cals outlined in the K3s Manual?
>
> If not, please supply recommendation for one that will do the job
> adequately.
>
> Thanks!
>
> --
> __
> Clay Autery, KG5LKV
> MONTAC Enterprises
> (318) 518-1389
>
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>

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Re: [Elecraft] [KX3] More Macro Buttons

2016-04-26 Thread Buddy Brannan

Of course, having extras available doesn't mean you have to use them, or even 
set up a macro key as a "more macros" key. Heck, why not be able to set up both 
PF keys as "more macros" keys and have 20? Well, except perhaps for storage. 
The KX3 already stores up to 8 macros, but only two can be accessed from the PF 
keys. Well, OK, that isn't strictly true if you use Wayne's (or whichever 
clever person's) self-modifying PF key definitions trick as I have done. With 
that trick, my next trick is remembering where in the sequence I last left 
things. Anyway, as for me, I'd find it handy for accessing those menu functions 
I can't really access because they're not implemented in the morse UI. 

Which reminds me. Anyone know what the programming syntax is for the battery 
charger in the KX3? I had a macro to turn the charger on, but it seems to not 
work anymore. :-( So I have a KX3 full of dead NiMH batteries. 

--
Buddy Brannan, KB5ELV - Erie, PA
Phone: 814-860-3194 
Mobile: 814-431-0962
Email: bu...@brannan.name




> On Apr 26, 2016, at 10:36 PM, Ryan Noguchi via Elecraft 
>  wrote:
> 
> Then what Jim suggested would use the one button you don't even use. I would 
> use every single one of those new macro slots and more.
> 73, Ryan AI6DO
> 
> 
> 
>  On Tue, Apr 26, 2016 at 19:48, Don Wilhelm wrote:   
> Here is my vote *against* having many macro buttons.
> There is a problem with remembering which buttons play which macros.
> A limited number is fine with me, but there is a break-even point when 
> you cannot keep track of them in your head and a 'cheat sheet' is 
> needed.  I just don't want to get to the point where that cheat sheet is 
> needed.
> In general, I prefer to tap out the functions needed on the regular 
> buttons because I can remember what those do.  I have only a few 
> occasions when it is helpful to activate a sequence of buttons 
> automatically.
> The only macro that I use is to go split and up 2. I can remember that 
> one easily.
> 
> 73,
> Don W3FPR
> 
> On 4/26/2016 9:01 PM, Jim Kutsch, KY2D wrote:
>> I'd find this very useful too. If it was possible to set one of the PF 
>> buttons to a "more macros" feature, then not only 0 through 9 but 
>> essentially every other button and knob could be used to activate a 
>> different macro. It would just be necessary to push the PF key followed by 
>> the desired other button or knob.
>> 
>> Jim, KY2D
>> 
>> 
> 
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Re: [Elecraft] Wattmeter for K3s Calibration

2016-04-26 Thread Ron D'Eau Claire

For the Transmitter Gain calibration, all you need is a decent dummy load.
The LP-100A is not a dummy load. My 20-year old inexpensive MFJ dummy load
does a good job for that. (But note it has never been abused, such as
running power into it until it gets hot or smells.) A well designed dummy
load will have very little reactance from stray capacitance or inductance.
That leaves only the value of the resistive element, which you can check
with your DMM. It's the resistive element that is most susceptible to damage
from overheating it, just like any other resistor.  

For calibrating the wattmeter in your K3S beyond the factory setting,
whatever makes you happy is perfect. There is no operational or performance
advantage to "improving" the factory settings. The LP-100A claims 3% power
display accuracy which is much better than most (if the claims are true).
For example, the ARRL lab is quoted in their manual saying "They specify
their measurement error for power as +/- 5%, and for PEP power, +/- 8%."
Note the +/- meaning the power error may vary by 10% for constant carrier
and 16% PEP. Those are much more typical values for good, even lab quality
power measurement equipment.   

73, Ron AC7AC 

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Clay
Autery
Sent: Tuesday, April 26, 2016 6:50 PM
To: Elecraft Reflector
Subject: [Elecraft] Wattmeter for K3s Calibration

Would the LP-100A meet the accuracy/precision requirements to do the power
cals outlined in the K3s Manual?

If not, please supply recommendation for one that will do the job
adequately.

Thanks!

--
__
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MONTAC Enterprises
(318) 518-1389

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Re: [Elecraft] [KX3] More Macro Buttons

2016-04-26 Thread Ryan Noguchi via Elecraft

Then what Jim suggested would use the one button you don't even use. I would 
use every single one of those new macro slots and more.
73, Ryan AI6DO

  On Tue, Apr 26, 2016 at 19:48, Don Wilhelm wrote:   
Here is my vote *against* having many macro buttons.
There is a problem with remembering which buttons play which macros.
A limited number is fine with me, but there is a break-even point when 
you cannot keep track of them in your head and a 'cheat sheet' is 
needed.  I just don't want to get to the point where that cheat sheet is 
needed.
In general, I prefer to tap out the functions needed on the regular 
buttons because I can remember what those do.  I have only a few 
occasions when it is helpful to activate a sequence of buttons 
automatically.
The only macro that I use is to go split and up 2. I can remember that 
one easily.

73,
Don W3FPR

On 4/26/2016 9:01 PM, Jim Kutsch, KY2D wrote:
> I'd find this very useful too. If it was possible to set one of the PF 
> buttons to a "more macros" feature, then not only 0 through 9 but essentially 
> every other button and knob could be used to activate a different macro. It 
> would just be necessary to push the PF key followed by the desired other 
> button or knob.
>
> Jim, KY2D
>    
>

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Re: [Elecraft] Wattmeter for K3s Calibration


Clay,

An LP-100A calibrated to N8LP's NIST traceable standards is about the 
best you are going to find at a price that is palatable to most hams.  
Used in conjunction with a precision 50 ohm dummy load, the calibration 
results will be better than most other wattmeters.
The LP-100A.  I have one at the workbench that serves as the secondary 
standard for all my other wattmeters.  With NIST tracable calibration 
it's accuracy is typically 3% of the reading.


The Elecraft W2 is also good for that task and should be sufficiently 
accurate with its +/- 0.5dB Accuracy specification.


73,
Don W3FPR

On 4/26/2016 9:49 PM, Clay Autery wrote:

Would the LP-100A meet the accuracy/precision requirements to do the
power cals outlined in the K3s Manual?

If not, please supply recommendation for one that will do the job
adequately.




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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Robert Vargas-KP4Y via Elecraft

> On Apr 26, 2016, at 8:08 PM, Kevin Stover  wrote:

> I'm curious why is direct sampling SDR's like the 7300 are supposed to be the 
> second coming why Icom stuck with the traditional superhet architecture on 
> it's "flagship" 7851? Maybe they realize the technology is at least 5 years 
> away from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC 
> overload.

What suggests you that direct-sampling SDRs are 5 years away from being 
competitive? Elecraft will likely have moved to this architecture in less time 
than that to remain competitive. I suspect that one of the reason Icom stuck 
with the superheat on the IC-7851 is because this product was already in 
production by the time they made the decision to design a direct-sampling SDR. 
Now this is all speculation. What matters is that many of us who have high-end 
direct-sampling SDRs haven't experienced the overload issues. I don't doubt 
some operators have (maybe W4TV one of them), but these are probably isolated 
case. BTW, all receivers have weakness (every design has trade-offs), including 
the ones designed by Elecraft (I can hear images on KX3 sometimes). Just that 
you know, K9CT has one of the finest contesting station in the US. He has 
switched to direct-sampling SDRs (Flex-6700). Just ask him if this architecture 
is 5 years away from being competitive.

73,
Robert-KP4Y/W4
Sent from my iPhone

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Joe Subich, W4TV


On 4/26/2016 8:08 PM, Kevin Stover wrote:

Everybody is ignoring W4TV's 800lb Gorilla, ADC overload.


I can't take credit for that ... the warning comes from some of the
best RF designers in the world.  Direct sampling receivers are very
good in controlled situations.  Unfortunately, those who are used to
analog superhetrodyne receivers do not recognize the symptoms of ADC
overload/overflow in many cases.

The overflow can show up as an occasional click or pop if the number
and strength of signals continues to increase conditions go down hill
very rapidly.  The best 16 bit ADC based SDRs can and do show very
significant overload issues when run without effective front end
bandpass filtering in high RF environments (160 meters near AM BC
stations, 40 meters in Europe, 160 meters in New England during a
contest, etc.).

One can apply filtering (which Icom seems to have done in the 7300),
apply attenuation (which Flex seems to have done in the 6000 series)
or both.  Filtering limits the number and width of "slice receivers"
while attenuation kills weak signal performance.

I find Icom's implementation interesting in that they are using the
technology as a single band, single channel receiver (they could have
added Dual RX within the same band at practically no hardware cost) - an 
application where, with tight bandpass filtering, direct sampling

may be ready to compete as indicated by the fact that Sherwood's tests
place the 7300's above some "good" conventional rigs like the Ten-Tec
Eagle, Kenwood TS-590SG and TS-990 in MDS, LO Phase noise and IMD DR.

However, for the ultimate multi-channel receiver, ADC technology is
still 4 to 6 bits short as witnessed by the need for 12 to 20 dB of
attenuation in the Flex 6000 or the 0 to 30 dB electronically stepped
attenuators in some of the other products like the Anan, Hermes, etc.
Sherwood's results hint at this when comparing the MDS with the
preamp on and preamp off ... even with its preamp on the Flex 6700
MDS is the same as the K3S with *no preamp*!

73,

   ... Joe, W4TV

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[Elecraft] Wattmeter for K3s Calibration

Would the LP-100A meet the accuracy/precision requirements to do the
power cals outlined in the K3s Manual?

If not, please supply recommendation for one that will do the job
adequately.

Thanks!

-- 
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MONTAC Enterprises
(318) 518-1389

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Re: [Elecraft] [KX3] More Macro Buttons


Here is my vote *against* having many macro buttons.
There is a problem with remembering which buttons play which macros.
A limited number is fine with me, but there is a break-even point when 
you cannot keep track of them in your head and a 'cheat sheet' is 
needed.  I just don't want to get to the point where that cheat sheet is 
needed.
In general, I prefer to tap out the functions needed on the regular 
buttons because I can remember what those do.  I have only a few 
occasions when it is helpful to activate a sequence of buttons 
automatically.
The only macro that I use is to go split and up 2. I can remember that 
one easily.


73,
Don W3FPR

On 4/26/2016 9:01 PM, Jim Kutsch, KY2D wrote:

I'd find this very useful too. If it was possible to set one of the PF buttons to a 
"more macros" feature, then not only 0 through 9 but essentially every other 
button and knob could be used to activate a different macro. It would just be necessary 
to push the PF key followed by the desired other button or knob.

Jim, KY2D
   



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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Robert Vargas-KP4Y via Elecraft

> I'm curious why is direct sampling SDR's like the 7300 are supposed to be the 
> second coming why Icom stuck with the traditional superhet architecture on 
> it's "flagship" 7851? Maybe they realize the technology is at least 5 years 
> away from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC 
> overload



What suggests you that direct-sampling SDRs are 5 years away from being 
competitive? Elecraft will likely have moved to this architecture in less time 
than that to remain competitive. I suspect that one of the reason Icom stuck 
with the superheat on the IC-7851 is because this product was already in 
production by the time they made the decision to design a direct-sampling SDR. 
Now this is all speculation. What matters is that many of us who have high-end 
direct-sampling SDRs haven't experienced the overload issues. I don't doubt 
some operators have (maybe W4TV one of them), but these are probably isolated 
case. BTW, all receivers have weakness (every design has trade-offs), including 
the ones designed by Elecraft (I can hear images on KX3 sometimes). Just that 
you know, K9CT has one of the finest contesting station in the US. He has 
switched to direct-sampling SDRs (Flex-6700). Just ask him if this architecture 
is 5 years away from being competitive.

73,
Robert-KP4Y/W4


Sent from my iPhone

> On Apr 26, 2016, at 8:08 PM, Kevin Stover  wrote:
> 
> Ditto we still don't use them.
> Our users have a choice of laptop or iPad/Surface other than a desktop thin 
> client on our VM Ware network.
> 90% choose the Win7 laptop. They're more expensive, slower, and break more 
> often than the thin client but not as often as the iPads. The Surface's are 
> new so no experience base with them yet. Our hardware group absolutely hate 
> touch screens. I'm a Network Engineer...I have no use for them either.
> 
> My brother does IT for a school district that equipped all of their middle 
> school kids with cutting edge iPads. 700 of them. My brother had to get good 
> at replacing the very expensive coated touch screens that the evil empire 
> said mere mortals couldn't replace. He got no help from Apple other than 
> expensive parts. That experiment lasted three years and they switched to 
> Chrome books.
> 
> I guarantee as sure as I'm sitting here *that touch screen will fail within a 
> year...if not sooner*, and you've got no chance to fix it yourself. I can 
> order parts from Elecraft for all my rigs and fix them. No sweat.
> 
> I'm curious why is direct sampling SDR's like the 7300 are supposed to be the 
> second coming why Icom stuck with the traditional superhet architecture on 
> it's "flagship" 7851? Maybe they realize the technology is at least 5 years 
> away from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC 
> overload.
> 
>> On 4/26/2016 5:28 PM, Clay Autery wrote:
>> Coat it however you want...  Doesn't stop dirt and grime being put on
>> the screen possibly scratching and/or gooping up the corners and edges...
>> 
>> I've been in IS/IT for 25+ years...  Screens are not for touching.
>> 
>> Bottom Line...  I'll stick with buttons, dials, and switches, thank you.  :)
>> 
>> __
>> Clay Autery, KG5LKV
>> MONTAC Enterprises
>> (318) 518-1389
> 
> 
> -- 
> R. Kevin Stover
> AC0H
> ARRL
> FISTS #11993
> SKCC #215
> NAQCC #3441
> 
> 
> 
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
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Re: [Elecraft] Sherwood's receiver performance table updated

Would not use an Apple product if it was given to me free...   ;-)

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MONTAC Enterprises
(318) 518-1389

On 4/26/2016 7:43 PM, Wes wrote:
> My son is the IT Manager for a midsized nationwide corporation.  He
> doesn't like touch screens either.
>
> But he uses iPhones and iPads.  Go figure.
>
> On 4/26/2016 3:28 PM, Clay Autery wrote:
>> Coat it however you want...  Doesn't stop dirt and grime being put on
>> the screen possibly scratching and/or gooping up the corners and
>> edges...
>>
>> I've been in IS/IT for 25+ years...  Screens are not for touching.

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Re: [Elecraft] Sherwood's receiver performance table updated

Are you trying to be obtuse, or is it an accident.

I carry a smart phone, too.  For a manageable sized phone, the touch
screen is a necessity, and the crap on the screen STILL bugs the crap
out of me.

I do NOT however carry and HF-6M radio around in my pocket, so it does
NOT need a touch screen, and one isn't desired.

I never SAID there was a FLAW in the "concept".  The concept is fine, I
just don't like them... and I have LOTS of company.

You want a touch screen... cool, buy one  but I wouldn't be your
IS/IT support...  I HIGHLY discourage the use of touch screens by my
clients... and charge a premium to those who INSIST on using them.

"That's why they have vanilla and chocolate ice cream."  -- Mamaw Autery
in response to a discussion about preferences on one thing or another.

__
Clay Autery, KG5LKV
MONTAC Enterprises
(318) 518-1389

On 4/26/2016 7:20 PM, Tony Estep wrote:
>> "25+ years  Screens are not for touching..."
>
> H. By one estimate, there were more than 2.5 billion smartphones in use
> last year (and more today, of course), all with touchscreens. If each
> screen is used just for a few minutes a day, the total usage-years is in
> the hundreds of millions.
>
> Touchscreen-equipped devices, including phones and tablets, are among the
> most widely-used consumer electronic devices of all time. If there is some
> undiscovered flaw in the concept of a touchscreen, it hasn't shown up so
> far.
>
> Tony KT0NY

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Re: [Elecraft] JT65 with KX3


Brian,

The XG50 is not really expensive and is a good stable source.  It is 
'cheap' compared to the frustration factor involved with trying to use 
other methods.
If you have access to an instrument lab with highly stable signal 
sources in the 50MHz range, then you are all set, but most are not so 
fortunate.


The problem in justifying the price is that it is seldom used once you 
do the KX3 calibration.  Maybe we should create a 'ham sharing XG50' 
network to allow each to pay a portion of the total cost of the XG50.  
That would work fine if you have several locals with a KX3 - check with 
your local club.


73,
Don W3FPR

On 4/26/2016 3:37 PM, Brian Waterworth wrote:

I would agree with the ext temp compensation.  It is the right thing to do
and let's the onboard computer handle the drift variations for you.  I
don't have the xg50, which is recommended.  I tried the wwv approach and
that did not work, even when wwv was coming in fairly strong at s7.  I
watched the collection on the kx3utility and it was good on the third try,
no gaps or fades that caused the beat frequency to be read incorrectly.

However, I have returned to the standard compensation as opposed to what I
attempted to do with wwv and the extended temp compensation.  I did it
three times and all results were worse than the standard.

I will try to build a stable frequency oscillator or perhaps purchase the
xg50 so I can do the temp compensation properly.


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Re: [Elecraft] [KX3] More Macro Buttons

2016-04-26 Thread Jim Kutsch, KY2D

I'd find this very useful too. If it was possible to set one of the PF buttons 
to a "more macros" feature, then not only 0 through 9 but essentially every 
other button and knob could be used to activate a different macro. It would 
just be necessary to push the PF key followed by the desired other button or 
knob.

Jim, KY2D
  

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joel Black
Sent: Monday, April 25, 2016 5:54 AM
To: Elecraft Reflector Reflector
Subject: [Elecraft] [KX3] More Macro Buttons

I wonder if it would be feasible to have more macro buttons in a future F/W 
release. Perhaps using the one of the PF buttons to put the radio into “macro” 
mode and use the number buttons for the macros?

Just a thought. Don’t know if it’s possible or not.

73,
Joel - W4JBB
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Chortek Bob via Elecraft

 blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px 
#715FFA solid !important; padding-left:1ex !important; background-color:white 
!important; }  Depends how many times you drop it.


Sent from Yahoo Mail for iPhone


On Tuesday, April 26, 2016, 5:32 PM, Gary  wrote:

Hmmhow long is the life expectancy of a smart phone?

My k3 ain't goin anywhere
Gary

-Original Message-
From: "Tony Estep" 
Sent: ‎27/‎04/‎2016 10:21 AM
To: "Elecraft" 
Subject: Re: [Elecraft] Sherwood's receiver performance table updated

> "25+ years  Screens are not for touching..."


H. By one estimate, there were more than 2.5 billion smartphones in use
last year (and more today, of course), all with touchscreens. If each
screen is used just for a few minutes a day, the total usage-years is in
the hundreds of millions.

Touchscreen-equipped devices, including phones and tablets, are among the
most widely-used consumer electronic devices of all time. If there is some
undiscovered flaw in the concept of a touchscreen, it hasn't shown up so
far.

Tony KT0NY
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Re: [Elecraft] [Bulk] Re: Sherwood's receiver performance table updated

2016-04-26 Thread Tom McCulloch


Heath DX-60= Model A


On 4/26/2016 8:48 PM, Chris Tate - N6WM wrote:

Maybe apples and oranges is not the best comparison.. how about this

Elecraft K3s = Porsche
Flex 6000 = Tesla
IC-7300 = Nissan Leaf
Kenwood TS-590 =Toyota pickup

~C./WM







-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kevin 
Stover
Sent: Tuesday, April 26, 2016 5:08 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Sherwood's receiver performance table updated

Ditto we still don't use them.
Our users have a choice of laptop or iPad/Surface other than a desktop thin 
client on our VM Ware network.
90% choose the Win7 laptop. They're more expensive, slower, and break more 
often than the thin client but not as often as the iPads. The Surface's are new 
so no experience base with them yet. Our hardware group absolutely hate touch 
screens. I'm a Network Engineer...I have no use for them either.

My brother does IT for a school district that equipped all of their middle 
school kids with cutting edge iPads. 700 of them. My brother had to get good at 
replacing the very expensive coated touch screens that the evil empire said 
mere mortals couldn't replace. He got no help from Apple other than expensive 
parts. That experiment lasted three years and they switched to Chrome books.

I guarantee as sure as I'm sitting here *that touch screen will fail within a 
year...if not sooner*, and you've got no chance to fix it yourself. I can order 
parts from Elecraft for all my rigs and fix them.
No sweat.

I'm curious why is direct sampling SDR's like the 7300 are supposed to be the second 
coming why Icom stuck with the traditional superhet architecture on it's 
"flagship" 7851? Maybe they realize the technology is at least 5 years away 
from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC overload.

On 4/26/2016 5:28 PM, Clay Autery wrote:

Coat it however you want...  Doesn't stop dirt and grime being put on
the screen possibly scratching and/or gooping up the corners and edges...

I've been in IS/IT for 25+ years...  Screens are not for touching.

Bottom Line...  I'll stick with buttons, dials, and switches, thank
you.  :)

__
Clay Autery, KG5LKV
MONTAC Enterprises
(318) 518-1389



--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441



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--

In democracy it’s your vote that counts; In feudalism it’s your count that 
votes.

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[Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Johnny Siu via Elecraft

Well, Chris, I like my Tesla Model S 70D very much.  Hong Kong is good for EV 
because we are a small city.
73
Johnny VR2XMC

  寄件人︰ Chris Tate - N6WM 
 收件人︰ "elecraft@mailman.qth.net"  
 傳送日期︰ 2016年04月27日 (週三) 8:48 AM
 主題︰ Re: [Elecraft] Sherwood's receiver performance table updated

Maybe apples and oranges is not the best comparison.. how about this

Elecraft K3s = Porsche 
Flex 6000 = Tesla
IC-7300 = Nissan Leaf
Kenwood TS-590 =Toyota pickup

~C./WM

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kevin 
Stover
Sent: Tuesday, April 26, 2016 5:08 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Sherwood's receiver performance table updated

Ditto we still don't use them.
Our users have a choice of laptop or iPad/Surface other than a desktop thin 
client on our VM Ware network.
90% choose the Win7 laptop. They're more expensive, slower, and break more 
often than the thin client but not as often as the iPads. The Surface's are new 
so no experience base with them yet. Our hardware group absolutely hate touch 
screens. I'm a Network Engineer...I have no use for them either.

My brother does IT for a school district that equipped all of their middle 
school kids with cutting edge iPads. 700 of them. My brother had to get good at 
replacing the very expensive coated touch screens that the evil empire said 
mere mortals couldn't replace. He got no help from Apple other than expensive 
parts. That experiment lasted three years and they switched to Chrome books.

I guarantee as sure as I'm sitting here *that touch screen will fail within a 
year...if not sooner*, and you've got no chance to fix it yourself. I can order 
parts from Elecraft for all my rigs and fix them. 
No sweat.

I'm curious why is direct sampling SDR's like the 7300 are supposed to be the 
second coming why Icom stuck with the traditional superhet architecture on it's 
"flagship" 7851? Maybe they realize the technology is at least 5 years away 
from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC 
overload.

On 4/26/2016 5:28 PM, Clay Autery wrote:
> Coat it however you want...  Doesn't stop dirt and grime being put on 
> the screen possibly scratching and/or gooping up the corners and edges...
>
> I've been in IS/IT for 25+ years...  Screens are not for touching.
>
> Bottom Line...  I'll stick with buttons, dials, and switches, thank 
> you.  :)
>
> __
> Clay Autery, KG5LKV
> MONTAC Enterprises
> (318) 518-1389
>

--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Mike Dodd


On 4/26/2016 8:35 PM, Nr4c wrote:

Hmmm.  A 100 Watt KX3 isn't that far from the price of a 100 Watt K3S.


Indeed. However, after using my KX3/PX3/KPXA100 for thousands of Qs, I 
bought a K3s.


The KX3 is retired into shielded wrappings, in case of an emergency. I 
sold the PX3 and KXPA100.


The K3s has features that make it far nicer for me than the KX3 setup:

1. Built-in amp with temperature-controlled cooling fans. The KXPA100 
was OK, but I never liked the exposed heat sink as the sole means of 
cooling.


2. Front/rear mic/speaker/phones jacks. I use a Heil boom mic and a 
Yamaha headset. With the KX3, I needed to unplug/plug the mic/phones 
connections on the side panel. Then I had to turn on/off the mic bias 
and adjust the mic gain for the currently plugged mic. never more with 
the K3s.


Plus I had to crawl under my desk to swap the foot switch plug into a 
cable jack to match the current mic. The K3's rear panel PTT jack 
eliminates this hassle.


To use AFSK-A with the KX3, I needed to unplug/plug yet another pair of 
mic/phones plugs to the SignaLink USB codec. The K3's built-in codec is 
wonderful!


Bottom line: If I'd had the money and if the "s" were available in 2013, 
I would have gone with the K3s. I'm not sorry I started with the KX3 
gear, but the K3s setup gives me a lot more.


--
73, Mike N4CF
Louisa County, VA USA
Elecraft K3s/100
Carolina Windom up 45'
http://n4cf.mdodd.com
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Re: [Elecraft] Sherwood's receiver performance table updated

Maybe apples and oranges is not the best comparison.. how about this

Elecraft K3s = Porsche 
Flex 6000 = Tesla
IC-7300 = Nissan Leaf
Kenwood TS-590 =Toyota pickup

~C./WM

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kevin 
Stover
Sent: Tuesday, April 26, 2016 5:08 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Sherwood's receiver performance table updated

Ditto we still don't use them.
Our users have a choice of laptop or iPad/Surface other than a desktop thin 
client on our VM Ware network.
90% choose the Win7 laptop. They're more expensive, slower, and break more 
often than the thin client but not as often as the iPads. The Surface's are new 
so no experience base with them yet. Our hardware group absolutely hate touch 
screens. I'm a Network Engineer...I have no use for them either.

My brother does IT for a school district that equipped all of their middle 
school kids with cutting edge iPads. 700 of them. My brother had to get good at 
replacing the very expensive coated touch screens that the evil empire said 
mere mortals couldn't replace. He got no help from Apple other than expensive 
parts. That experiment lasted three years and they switched to Chrome books.

I guarantee as sure as I'm sitting here *that touch screen will fail within a 
year...if not sooner*, and you've got no chance to fix it yourself. I can order 
parts from Elecraft for all my rigs and fix them. 
No sweat.

I'm curious why is direct sampling SDR's like the 7300 are supposed to be the 
second coming why Icom stuck with the traditional superhet architecture on it's 
"flagship" 7851? Maybe they realize the technology is at least 5 years away 
from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC 
overload.

On 4/26/2016 5:28 PM, Clay Autery wrote:
> Coat it however you want...  Doesn't stop dirt and grime being put on 
> the screen possibly scratching and/or gooping up the corners and edges...
>
> I've been in IS/IT for 25+ years...  Screens are not for touching.
>
> Bottom Line...  I'll stick with buttons, dials, and switches, thank 
> you.  :)
>
> __
> Clay Autery, KG5LKV
> MONTAC Enterprises
> (318) 518-1389
>

--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Wes

My son is the IT Manager for a midsized nationwide corporation.  He doesn't like 
touch screens either.


But he uses iPhones and iPads.  Go figure.

On 4/26/2016 3:28 PM, Clay Autery wrote:

Coat it however you want...  Doesn't stop dirt and grime being put on
the screen possibly scratching and/or gooping up the corners and edges...

I've been in IS/IT for 25+ years...  Screens are not for touching.




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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Walter Underwood

IBM has been rolling out Macs as fast as they can, about 2000 per week. The 
tech support savings are massive. And Macs have long been at the top of the 
list for most reliable laptops. 

http://www.computerworld.com/article/2998315/apple-mac/every-mac-we-buy-is-making-and-saving-ibm-money-ibm.html
 


Our family has been using iPhones and iPads for a decade and never had a 
touchscreen failure, even with our developmentally-disabled adult son. He’s a 
wizard with the touch screen, but tough on hardware.

Also, please sign with your call sign.

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

> On Apr 26, 2016, at 5:08 PM, Kevin Stover  wrote:
> 
> Ditto we still don't use them.
> Our users have a choice of laptop or iPad/Surface other than a desktop thin 
> client on our VM Ware network.
> 90% choose the Win7 laptop. They're more expensive, slower, and break more 
> often than the thin client but not as often as the iPads. The Surface's are 
> new so no experience base with them yet. Our hardware group absolutely hate 
> touch screens. I'm a Network Engineer...I have no use for them either.
> 
> My brother does IT for a school district that equipped all of their middle 
> school kids with cutting edge iPads. 700 of them. My brother had to get good 
> at replacing the very expensive coated touch screens that the evil empire 
> said mere mortals couldn't replace. He got no help from Apple other than 
> expensive parts. That experiment lasted three years and they switched to 
> Chrome books.
> 
> I guarantee as sure as I'm sitting here *that touch screen will fail within a 
> year...if not sooner*, and you've got no chance to fix it yourself. I can 
> order parts from Elecraft for all my rigs and fix them. No sweat.
> 
> I'm curious why is direct sampling SDR's like the 7300 are supposed to be the 
> second coming why Icom stuck with the traditional superhet architecture on 
> it's "flagship" 7851? Maybe they realize the technology is at least 5 years 
> away from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC 
> overload.
> 
> On 4/26/2016 5:28 PM, Clay Autery wrote:
>> Coat it however you want...  Doesn't stop dirt and grime being put on
>> the screen possibly scratching and/or gooping up the corners and edges...
>> 
>> I've been in IS/IT for 25+ years...  Screens are not for touching.
>> 
>> Bottom Line...  I'll stick with buttons, dials, and switches, thank you.  :)
>> 
>> __
>> Clay Autery, KG5LKV
>> MONTAC Enterprises
>> (318) 518-1389
>> 
> 
> 
> -- 
> R. Kevin Stover
> AC0H
> ARRL
> FISTS #11993
> SKCC #215
> NAQCC #3441
> 
> 
> 
> ---
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Nr4c

Hmmm.  A 100 Watt KX3 isn't that far from the price of a 100 Watt K3S. 

Sent from my iPhone
...nr4c. bill


> On Apr 26, 2016, at 8:28 PM, Bill Frantz  wrote:
> 
> I think it is better to compare the IC-7300 with the KX3 rather than the 
> K3(S) as their price and performance are a bit closer.
> 
> As for touchscreens, they don't like my fingers and frequently don't 
> recognize when I them. (My fingers are big so where is another problem.) 
> Working with my iPhone is always a bit painful compared with the mouse on my 
> computer.
> 
> 73 Bill AE6JV
> 
> ---
> Bill Frantz| Since the IBM Selectric, keyboards have gotten
> 408-356-8506   | steadily worse. Now we have touchscreen keyboards.
> www.pwpconsult.com | Can we make something even worse?
> 
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Bill Frantz

I think it is better to compare the IC-7300 with the KX3 rather 
than the K3(S) as their price and performance are a bit closer.


As for touchscreens, they don't like my fingers and frequently 
don't recognize when I them. (My fingers are big so where is 
another problem.) Working with my iPhone is always a bit painful 
compared with the mouse on my computer.


73 Bill AE6JV

---
Bill Frantz| Since the IBM Selectric, keyboards have gotten
408-356-8506   | steadily worse. Now we have touchscreen keyboards.
www.pwpconsult.com | Can we make something even worse?

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Gary

Hmmhow long is the life expectancy of a smart phone?

My k3 ain't goin anywhere
Gary

-Original Message-
From: "Tony Estep" 
Sent: ‎27/‎04/‎2016 10:21 AM
To: "Elecraft" 
Subject: Re: [Elecraft] Sherwood's receiver performance table updated

> "25+ years  Screens are not for touching..."

H. By one estimate, there were more than 2.5 billion smartphones in use
last year (and more today, of course), all with touchscreens. If each
screen is used just for a few minutes a day, the total usage-years is in
the hundreds of millions.

Touchscreen-equipped devices, including phones and tablets, are among the
most widely-used consumer electronic devices of all time. If there is some
undiscovered flaw in the concept of a touchscreen, it hasn't shown up so
far.

Tony KT0NY
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Tony Estep

> "25+ years  Screens are not for touching..."


H. By one estimate, there were more than 2.5 billion smartphones in use
last year (and more today, of course), all with touchscreens. If each
screen is used just for a few minutes a day, the total usage-years is in
the hundreds of millions.

Touchscreen-equipped devices, including phones and tablets, are among the
most widely-used consumer electronic devices of all time. If there is some
undiscovered flaw in the concept of a touchscreen, it hasn't shown up so
far.

Tony KT0NY
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Richard Fjeld


Here is a YouTube video of a K3 with a touch screen monitor.

https://www.youtube.com/watch?v=6usy-0257NQ

Dick, n0ce


On 4/26/2016 4:16 PM, John Kramer wrote:

Phil, in reality having a touch screen is not all that bad as you make out. You 
really need
to try it. An advantage is that it reduces the clutter on the front panel of a 
rig, by assigning
knobs/buttons to the display screen. The one used in the IC-7300 is really good 
- sensitive
to the touch, but not quite as sensitive as some smartphones. The display of 
the 7300 is
a major leap forward from older generation 7600, 7700 rigs. Very clear and 
responsive.
And smear marks on the screen ? absolutely not - I have had my 7300 for 2 weeks 
now,
and have not yet had the need to clean the display - the display is not that 
glossy mirror
finish like smart phones have. Besides…I prod my touch phone FAR more than I 
touch the
screen of my 7300, and I have no problem with finger marks on my phone….maybe 
once a
month I might clean my phone with a lint cloth…no big deal. Perhaps I might 
clean my 7300
display once every 3 months at this rate…no biggie

73
John







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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Kevin Stover


Ditto we still don't use them.
Our users have a choice of laptop or iPad/Surface other than a desktop 
thin client on our VM Ware network.
90% choose the Win7 laptop. They're more expensive, slower, and break 
more often than the thin client but not as often as the iPads. The 
Surface's are new so no experience base with them yet. Our hardware 
group absolutely hate touch screens. I'm a Network Engineer...I have no 
use for them either.


My brother does IT for a school district that equipped all of their 
middle school kids with cutting edge iPads. 700 of them. My brother had 
to get good at replacing the very expensive coated touch screens that 
the evil empire said mere mortals couldn't replace. He got no help from 
Apple other than expensive parts. That experiment lasted three years and 
they switched to Chrome books.


I guarantee as sure as I'm sitting here *that touch screen will fail 
within a year...if not sooner*, and you've got no chance to fix it 
yourself. I can order parts from Elecraft for all my rigs and fix them. 
No sweat.


I'm curious why is direct sampling SDR's like the 7300 are supposed to 
be the second coming why Icom stuck with the traditional superhet 
architecture on it's "flagship" 7851? Maybe they realize the technology 
is at least 5 years away from being competitive. Everybody is ignoring 
W4TV's 800lb Gorilla, ADC overload.


On 4/26/2016 5:28 PM, Clay Autery wrote:

Coat it however you want...  Doesn't stop dirt and grime being put on
the screen possibly scratching and/or gooping up the corners and edges...

I've been in IS/IT for 25+ years...  Screens are not for touching.

Bottom Line...  I'll stick with buttons, dials, and switches, thank you.  :)

__
Clay Autery, KG5LKV
MONTAC Enterprises
(318) 518-1389




--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441



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Re: [Elecraft] JT65 with KX3

2016-04-26 Thread Edward R Cole

I ran the KX3 temp compensation procedure twice (the first run was a 
learning  experience so feel I got a good run on #2).  I used my AG3 
coupled with a very good freq counter.


JT65 is a synchronous code so that demands good frequency control 
(<+/- 10 Hz) and near perfect timing (< 1 second).  Both are 
essential to good decodes of very weak signals.  There is no casual 
relationship between them.  If either is off very much signals are not decoded.


I just performed frequency calibration for one of my transverter 
customers and got the 144-MHz transverter within 3-Hz (tuned heated 
xtal osc.).  The K3 shows frequency within 1-Hz at 28-MHz (using 
EXREF + ext OCXO).  Both were run for two hours before calibrating.


73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Edward R Cole

Date: Tue, 26 Apr 2016 16:12:54 -0400
From: "James D. (Jimmy) Walker, Jr." 
To: Elecraft Reflector 
Subject: [Elecraft] Sherwood's receiver performance table updated
Message-ID: 
Content-Type: text/plain; charset=utf-8

Just addressing the direct frequency entry issue:

I can do that with my K3 by use of Trakbox sw written by 
IK7EZN.  When coupled with the panoramic display of MAP65 I can click 
on a signal in the waterfall and click a box in MAP65 to transfer 
that to the K3.  Its not a finger touch screen but does the task 
pretty effectively.  MAP65 is a widescreen adaptation of JT65 for 
2m-eme.  MAP65 displays up to 90-KHz of bandwidth at a time and 
simultaneously decodes all JT65 signals in that bw.

Soo...I would guess all that is needed is sw to be able to accomplish 
this for HF users (maybe even that exists?? - I do so little HF).

General reply:  Found the comparison interesting.  As long as K3 has 
Elecraft support for innovation and upgrade - I have no reason to buy 
anything else - ditto KX3.

Sidenote:  Many VHF/microwave hams have tried the Flex1500 and 
abandoned it subsequently. Appears not all Flex is  of equal 
utility.  Direct VHF SDR are coming on the scene so this may affect 
the VHF-mw/eme market eventually.

For now the combo of very good HF transceiver with very good 
transverter is still setting the standards of performance for 
VHF+.  None of the all-band HF/VHF/UHF in a box come close, though 
many use them (including me in the past).

73, Ed - KL7UW
K3/10 SN 4340
KX3 SN 475
KXPA-100 SN1865
previously owned: FT-847, FT-817, FT-840, Tentec-Scout, Argonaut405, 
TS180S, IC211, SB110, etc.

==snip

What interests me most in the IC-7300 is the ability for direct entry 
of a frequency by touching the waterfall display. The P-3 does not 
offer that feature, and I?m told that it will not be available. With 
due regard to the superior performance of the K-3 receivers, I 
believe that state of the art now requires a more responsive 
Panadapter for the casual operator. BTW, I?m not expecting to part 
with my K-3.

Jimmy, WA4ILO

73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] Sherwood's receiver performance table updated

Coat it however you want...  Doesn't stop dirt and grime being put on
the screen possibly scratching and/or gooping up the corners and edges...

I've been in IS/IT for 25+ years...  Screens are not for touching.

Bottom Line...  I'll stick with buttons, dials, and switches, thank you.  :)

__
Clay Autery, KG5LKV
MONTAC Enterprises
(318) 518-1389

On 4/26/2016 5:24 PM, Walter Underwood wrote:
> Good touch screens have lipophobic coatings that repel finger oil. Apple 
> started using them in 2009. Some screens still don’t have them. They make a 
> big difference.
>
> https://en.wikipedia.org/wiki/Lipophobicity 
> 
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
>> On Apr 26, 2016, at 3:01 PM, Clay Autery  wrote:
>>
>> Yep... Jim has it correct
>>
>> I regularly use Marker A and B to set frequencies.  If I am doing it
>> right, it sets to the exact frequency even though the P3 only shows
>> to the 10 Hz resolution.
>>
>> And I don't have to put fingerprints on my screen/bezel...
>>
>> Why ANYONE wants to touch the screen they are VIEWING data on escapes me
>> COMPLETELY.  I want my screen ABSOLUTELY clean...
>>
>> __
>> Clay Autery, KG5LKV
>> MONTAC Enterprises
>> (318) 518-1389
>>
>>

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Walter Underwood

Good touch screens have lipophobic coatings that repel finger oil. Apple 
started using them in 2009. Some screens still don’t have them. They make a big 
difference.

https://en.wikipedia.org/wiki/Lipophobicity 


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

> On Apr 26, 2016, at 3:01 PM, Clay Autery  wrote:
> 
> Yep... Jim has it correct
> 
> I regularly use Marker A and B to set frequencies.  If I am doing it
> right, it sets to the exact frequency even though the P3 only shows
> to the 10 Hz resolution.
> 
> And I don't have to put fingerprints on my screen/bezel...
> 
> Why ANYONE wants to touch the screen they are VIEWING data on escapes me
> COMPLETELY.  I want my screen ABSOLUTELY clean...
> 
> __
> Clay Autery, KG5LKV
> MONTAC Enterprises
> (318) 518-1389
> 
> On 4/26/2016 3:29 PM, Jim Brown wrote:
>> On Tue,4/26/2016 1:12 PM, James D. (Jimmy) Walker, Jr. via Elecraft
>> wrote:
>>> What interests me most in the IC-7300 is the ability for direct entry
>>> of a frequency by touching the waterfall display.
>> 
>> To the accuracy of the width of your finger. :)   I looked at the 7300
>> at Visalia. Nice LOOKING radio at an entry level price.
>> 
>>>  The P-3 does not offer that feature,
>> 
>> While it doesn't have a touch screen, direct frequency entry can be
>> done by moving the marker to the blip on the screen and pushing the
>> Menu button. And to FAR greater precision.
>> 
>> 73, Jim K9YC
> 
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Re: [Elecraft] KX3 - How to enable RF output meter? Stuck in ALC display

2016-04-26 Thread David Anderson via Elecraft

Hi David,

I use SSB+CW all the time here, as it is so useful to be an,e to use the rig on 
SSB and just hit the key to transmit CW. Sorry my explanation was a big wordy, 
but it is possible to use SSB+CW and
you can switch to DATA mode then change meter scales between ALC and RF by 
tapping Keyer/mic knob then go back to SSB.

It's one of the most non intuitive features of the KX3 and I always have to 
refer to my notes each time this comes up.

73 from David GM4JJJ

> On 26 Apr 2016, at 21:06, David Orman  wrote:
> 
> Perfect, I'm positive I have SSB+CW enabled right now. I'll go disable and 
> test again. Thank you so much for the quick answer!
> 
> Respectfully,
> David
> 
>> On Tue, Apr 26, 2016 at 12:58 PM, David Anderson  wrote:
>> David,
>> 
>> This happens when SSB + CW is enabled.  In CW WGHT menu tap 1 to toggle 
>> between SSB+CW (enabled) and SSB -  CW
>> 
>> Tapping Keyer/Mic knob toggles between Keyer speed and Mic Gain rather than 
>> Meter Scales  CMP/ALC and SWR/RF. The CMP/ALC scale is still shown 
>> temporarily when CMP or Mic Gain are adjusted.
>> 
>> You can switch to DATA mode then change meter scales by tapping Keyer/mic 
>> knob then go back to SSB.
>> 
>> 
>> 73 from David GM4JJJ
>> 
>> > On 26 Apr 2016, at 16:54, David Orman  wrote:
>> >
>> > Hi,
>> >
>> > I tried tapping the keyer/mic button to change the display to RF output
>> > from ALC while in USB and LSB modes, and it doesn't switch over. I seem to
>> > remember this working before. I am on the latest firmware. Is there a trick
>> > to this I'm missing?
>> >
>> > Thank you,
>> > David
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[Elecraft] Updated KX3 rig controller

2016-04-26 Thread Edouard Lafargue

 Hi everyone,

Just a quick word to let you know that the update to Wizkers:Radio in the
Play store (https://goo.gl/ngcRXe) and the Chrome store (
https://goo.gl/SzpjII) just went live.

Two major new features in this version:

- Enhanced KX3 settings. Including an experimental KX3 memory viewer,
pending a complete editor in the next revision. This is, as far as I know,
the very first non-windows KX3 memory viewer. It is just a viewer at this
stage, and I am doing more tests before turning it into a full blown editor
soon.

- XML-RPC option in "Data Outputs": in plain english, this means that you
can now use Wizkers:Radio as a drop-in replacement for flrig !

As always, looking forward to your comments. I would be especially
interested to hear whether you can read your KX3 memories with the viewer.
The more people test, the more robust the editor will be once I make it
read-write.

I will release walk-through videos of the app over the next few days,
nothing like a simple video to help new users.

73 de ed w6ela
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Re: [Elecraft] Sherwood's receiver performance table updated

Yep... Jim has it correct

I regularly use Marker A and B to set frequencies.  If I am doing it
right, it sets to the exact frequency even though the P3 only shows
to the 10 Hz resolution.

And I don't have to put fingerprints on my screen/bezel...

Why ANYONE wants to touch the screen they are VIEWING data on escapes me
COMPLETELY.  I want my screen ABSOLUTELY clean...

__
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MONTAC Enterprises
(318) 518-1389

On 4/26/2016 3:29 PM, Jim Brown wrote:
> On Tue,4/26/2016 1:12 PM, James D. (Jimmy) Walker, Jr. via Elecraft
> wrote:
>> What interests me most in the IC-7300 is the ability for direct entry
>> of a frequency by touching the waterfall display.
>
> To the accuracy of the width of your finger. :)   I looked at the 7300
> at Visalia. Nice LOOKING radio at an entry level price.
>
>>   The P-3 does not offer that feature,
>
> While it doesn't have a touch screen, direct frequency entry can be
> done by moving the marker to the blip on the screen and pushing the
> Menu button. And to FAR greater precision.
>
> 73, Jim K9YC

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Rick WA6NHC


On 4/26/2016 1:45 PM, Wayne Burdick wrote:

The P3 also has far more screen height dedicated to the spectrum and waterfall displays, 
I believe. Aren't the 7300's displays a total of only 1/2" or 1" tall, 
depending on the display mode?

Wayne

Something around that size yes (played with one but not here yet to 
verify).  But that brings up another issue not mentioned.


Most rigs sit on a table for easy access by the operator hand.  That 
location does allow comfortable continuous viewing of the display for 
long term, even if the bale tips the radio up (for that it should be eye 
level).  One can equate this to the KX3 on a tabletop.  The 7300 display 
is a cute feature that should have had an external video out port.  [A 
single antenna port is another shortcoming for HF/6M operations.]


But that brings up a feature of the 7300; for $100 more (the one time 
expense of software shared with many other Icom radios) the display can 
be seen on a computer screen and the waterfall can be separate to the 
display.  In fact the waterfall can be moved to a second computer screen 
while running the control software on the primary screen.  The other 
added costs here are the computer and second screen, not trivial but 
ballpark of the P3 with SVGA and monitor.  [One can use a sound card and 
the IQ from the KX3 too, cheaper still.]


I like a filled toolbox and Elecraft is clearly my favorite brand. For 
home, I use the entire K3 line with reasonable DX success (272 entities 
worked from a dipole over the last few years).  It's a well integrated 
collection that plays EXTREMELY well.  While it isn't 'cheap' it is well 
worth the expense and I won't give it up (well maybe shift to a K3S 
later but for now no).


While I'd love to duplicate the home station in the RV (sometimes as 
brutal traveling conditions as many DXpeditions), it's more practical 
(because of antenna limitations, weight, space and budget) to use 
something else.  I considered the K3S/100 for the home station and 
moving the (stripped down) K3/100 with tuner to the RV. I looked at the 
KX3, PX3 and the amp (or even another amp brand).  I looked at other 
brands too.  The end goal is a decent, basic 100 watt radio that was low 
budget for FD and portable use with ability to use nearly anything for 
the antenna.


The IC-7300 ($1425) with the AH-4 ($239) tuner (matches nearly any 23'+ 
wire 80-6M and if enough wire or near resonance for 160M, there too) 
compares to a K3S/100 with tuner for just above half the cost. Of course 
there are other options, brands etc.  But unless something negative 
appears suddenly from the folks using them (i.e. if it barely meets 
transmitter cleanliness, horrendous key clicks) makes the Icom package 
hard to beat for a portable 100 watt second station (RV) given the 
current prices.  For that environment, I'd rather beat up a cheaper 
radio in the RV than one that costs more.  So it meets the needs; it's 
the correct tool for my need.


[If the antenna is resonant, the internal tuner can be used; another 
7300 feature is that at half power, the tuner is rated for 10:1 mismatch.]


I don't expect the stellar K3 performance from the 7300; it's NOT 
Elecraft.  However, I expect it to be more than 'adequate' and on the 
very rare occasion that I'm the DX, it will be fine.  It may well have 
to be Elecraft on the other end to complete that QSO, we'll see.  :-)


If it turns out to be a poor choice, I can sell it at a slight loss or 
(more likely) I can put it in my kids place for his use and I'll operate 
it remotely.  In any case, it's fun to play.


73,
Rick wa6nhc




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[Elecraft] FOR SALE: P3 with P3SVGA & P3TXMON

2016-04-26 Thread George Rebong

P3 Panadapter with P3SVGA & P3TXMON installed. Comes with HF 2000W Max
directional coupler.
Good condition. Selling to pay Medical bills. $950 shipped and insured.
Call 916-600-2717 or Email me ke...@arrl.net.

-- 
George Rebong
  KE6TE
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Re: [Elecraft] KX3 2m Install

2016-04-26 Thread Ron D'Eau Claire

Thanks Bruce: If that capacitor is no longer an issue we don’t want to be 
asking builders to look for it, Hi! 

 

I’ll look into the TO-220 issue. As long as it’s tightly clamped by the screw, 
it should provide good heat transfer to the case. 

 

73, Ron AC7AC

 

From: Bruce Nourish [mailto:w0...@w0mbt.net] 
Sent: Monday, April 25, 2016 8:55 PM
To: Ron D'Eau Claire; Elecraft Reflector
Subject: Re: [Elecraft] KX3 2m Install

 

Yes, sorry, C180, not C120. Not that I'm complaining, its absence made assembly 
easier.

 

Re: TO-220. If you look at Fig 24 (bottom of p28) in the instructions, you'll 
see TO-220 "leaning back" inwards from the side of the case, loosely held by 
the nylon screw. My TO-220 looked like that before I inserted the module -- so 
far so good. 

 

When I inserted the module, the transistor heat sink went into the gap between 
the top of TO-220 and the case. I wiggled it a bit until the hole in the heat 
sink, and the top hole of TO-220 approximately lined up. I was able to screw in 
the metal Phillips screw fine, so the heat sink should have a good connection 
to the case. But TO-220 was still "leaning back", meaning that the bottom hole 
of TO-220 was still at an angle. I tried unscrewing both screws, but the 
heatsink had wedged TO-220 firmly at that angle.

 

Bruce

 

On Mon, Apr 25, 2016 at 8:17 PM Ron D'Eau Claire  wrote:

Hi Bruce:

Are talking about C180 near J4? I'll check into it. It won't be the first
time the engineers made a change and didn't realize it impacted the assembly
instructions (I'm 600 miles from Watsonville, but only milliseconds by voice
and e-mail. Still that can be "light years" at times, Hi!)

I'm not sure what could put the TO-220 screw at an angle. The TO-220 heat
sink simply slips in between the retainer, which is then pulled tightly
against the TO-220 heat sink and the side of the case. That's the critical
part - good mechanical and thermal contact between the TO-220 heat sink and
the side of the case.

Have you tried loosening both screws and then re-tightening them? What comes
to mind is that in tightening the top screw, the retainer might have turned
slightly, misaligning the bottom screw in the hole. With everything in
place. Loosen both screws a bit, then retighten the bottom (nylon) screw to
hold the retainer, then tighten the top screw and see if things line up
better.

I'd appreciate hearing if that works either at my address on this message or
r...@elecraft.com.

73. Ron AC7AC

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bruce
Nourish
Sent: Monday, April 25, 2016 5:37 PM
To: Elecraft Reflector
Subject: [Elecraft] KX3 2m Install

Hi folks,

Last night I installed and configured a KX3 2m module following the current
instructions on the website (Rev C). My KX3 is a recent factory build.
Everything seems to be working fine; I haven't actually tried it on-air yet
(need to finish my 2m Moxon), but at least I didn't blow my rig up.

I encountered one difference with the instructions: When installing the LO
coax on J4, I could not find any capacitor C120 to avoid. My KX3 simply
doesn't have C120 or R81 on that PCB. Has something changed in recent KX3s?

The only hard part was the final installation, specifically clamping the
heatsink lug properly with retainer TO-220. It seems like the clamping
arrangement unavoidably puts the nylon bottom screw at a weird angle. I
double-checked the orientation of TO-220 and redid these steps over several
times, and couldn't figure out any other way to make it work. Is this right?
If so, a clarification in the instructions would help.

Bruce
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Re: [Elecraft] Sherwood's receiver performance table updated

Jim,

The problem with your question is that the answer really is "it all
depends".
If the feedline from the antenna is short and relatively low loss, then
the ATU in the shack is fine.
Or if the feedline is very low loss (say open wire line, well supported
and away from conductors), then the length of the feedline does not
matter much at all, and again the ATU in the shack is the more
convenient answer.

OTOH, if the feedline is coax, and the length is for instance 150 feet,
then you would want to consider something at the antenna. Whether that
is a remote ATU, or some type of fixed matching section to bring the
antenna feedpoint impedance down to a range of 30 to 150 ohms would be
in order. With the fixed matching section (antenna loading), you would
also want to have an ATU in the shack.

I have generalized on the antenna type - but the answer remains the same
no matter what the antenna type. Look at a beam with a matching section
at the driven element - that is one example of a fixed matching section,
it will not likely be flat SWR over the entire band and an ATU in the
shack can keep the PA transistors working into a 50 ohm load as you QSY.

Another example of a fixed matching section is a matching inductor (and
possibly capacitor) that is used on many of the popular 43 foot
verticals - but you still need an ATU in the shack.

One solution for a vertical antenna is to feed it with low loss parallel
feedline. Before you scream 'heresy' because the vertical is
unbalanced, there is nothing wrong with using a parallel feedline for a
vertical, the RF will figure it out - the radials are merely the "other
half" of the monopole. If your feedline run is long, consider using
open wire line if you can, or ladderline as a close second. Yes, you
need a current choke at the vertical antenna, and that takes care of the
'balance' situation - use a 1:1 choke, you are simply choking common
mode current and not trying to match the impedance of the feedline.

73,
Don W3FPR

On 4/26/2016 4:09 PM, Jim Rodenkirch wrote:

Don: requiring a wide ranging ATU is half of the question, Don!! What is
truly "significant" is this - many hams, new or otherwise, fail to
understand whether they really need an ATU in the shack or do they really,
REALLY need an ATU out at the antenna. For me, THAT's the mystifying piece
of the "ATU question" that always shows up.

71.5/72 de Jim Rodenkirch K9JWV

Don Wilhelm wrote

Wunder,

The only reason I can understand is that they can get away by stating
that they have an internal ATU. Sadly many hams (particularly newer
hams) gloss over the significance of the need for a wide range ATU.
They don't discover that they need an external tuner for their
"multiband" antenna until after they buy the transceiver and discover
that it is inadequate.

73,
Don W3FPR

On 4/25/2016 7:25 PM, Walter Underwood wrote:

On Apr 25, 2016, at 4:08 PM, Wayne Burdick

n6kr@
wrote:

- *Wide-range ATU (> 10:1 at 100 W; > 20:1 at low power) and two
antenna jacks

I am really mystified about why transceivers include a 3:1 range ATU. It
adds $150-200 to the end cost to get an external ATU. It might add $50-75
to make the internal ATU wide-range. It is especially odd for an
entry-level rig, where people are likely to be using a low-slung dipole.
OK, it is very strange for the IC-7851, too.

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread John Kramer

Phil, in reality having a touch screen is not all that bad as you make out. You 
really need
to try it. An advantage is that it reduces the clutter on the front panel of a 
rig, by assigning 
knobs/buttons to the display screen. The one used in the IC-7300 is really good 
- sensitive
to the touch, but not quite as sensitive as some smartphones. The display of 
the 7300 is
a major leap forward from older generation 7600, 7700 rigs. Very clear and 
responsive.
And smear marks on the screen ? absolutely not - I have had my 7300 for 2 weeks 
now,
and have not yet had the need to clean the display - the display is not that 
glossy mirror 
finish like smart phones have. Besides…I prod my touch phone FAR more than I 
touch the 
screen of my 7300, and I have no problem with finger marks on my phone….maybe 
once a 
month I might clean my phone with a lint cloth…no big deal. Perhaps I might 
clean my 7300
display once every 3 months at this rate…no biggie

73
John




On 26 Apr 2016, at 9:40 PM, Phil Hystad  wrote:

I find it interesting that a “touch” interface seems to be popular with radios 
and some users.  It is certainly useful on a device like a smart phone and even 
a pad and some other kinds of interfaces (e.g. bank ATM screen).  But, a touch 
screen for a radio that already has uses for actual dials and buttons seems to 
me to be unnecessary.  And, that does not even consider the fact that touch 
screens need to be periodically cleaned from oily finger prints.

Of course, this is indeed an unsolicited opinion and comment.

73, phil, K7PEH


> On Apr 26, 2016, at 1:29 PM, Jim Brown  wrote:
> 
> On Tue,4/26/2016 1:12 PM, James D. (Jimmy) Walker, Jr. via Elecraft wrote:
>> What interests me most in the IC-7300 is the ability for direct entry of a 
>> frequency by touching the waterfall display.
> 
> To the accuracy of the width of your finger. :)   I looked at the 7300 at 
> Visalia. Nice LOOKING radio at an entry level price.
> 
>> The P-3 does not offer that feature,
> 
> While it doesn't have a touch screen, direct frequency entry can be done by 
> moving the marker to the blip on the screen and pushing the Menu button. And 
> to FAR greater precision.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread John Kramer


Jim, you don’t have to use your finger, you can use a stylus if you are 
pedantic about accuracy :)
and if you are a few hertz off, it just takes a gentle nudge of the VFO to get 
it spot on.


73
John


On 26 Apr 2016, at 9:45 PM, Wayne Burdick  wrote:

The P3 also has far more screen height dedicated to the spectrum and waterfall 
displays, I believe. Aren't the 7300's displays a total of only 1/2" or 1" 
tall, depending on the display mode?

Wayne

On Apr 26, 2016, at 1:29 PM, Jim Brown  wrote:

> On Tue,4/26/2016 1:12 PM, James D. (Jimmy) Walker, Jr. via Elecraft wrote:
>> What interests me most in the IC-7300 is the ability for direct entry of a 
>> frequency by touching the waterfall display.
> 
> To the accuracy of the width of your finger. :)   I looked at the 7300 at 
> Visalia. Nice LOOKING radio at an entry level price.
> 
>> The P-3 does not offer that feature,
> 
> While it doesn't have a touch screen, direct frequency entry can be done by 
> moving the marker to the blip on the screen and pushing the Menu button. And 
> to FAR greater precision.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread John Kramer

I own Elecraft, Flex and for the past few weeks an IC-7300. Yes, Jim, it is a 
fine radio,
I have personally experienced this and own a KX3 and 3 Flex rigs to compare it 
with.
And, for what it costs, it is a damn fine rig. I don’t know of any other rig 
currently available
that is such good value for money. 
Perhaps the K3S would be better in terms of performance…but for the money, the 
IC-7300 is very capable, and has a brilliant UI.

73
John





How do we KNOW that it's a "fine radio?" I haven't seen a review by ARRL or 
RSGB. We have only Rob's measurements of the RECEIVER.


73, Jim K9YC
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Wayne Burdick

The P3 also has far more screen height dedicated to the spectrum and waterfall 
displays, I believe. Aren't the 7300's displays a total of only 1/2" or 1" 
tall, depending on the display mode?

Wayne

On Apr 26, 2016, at 1:29 PM, Jim Brown  wrote:

> On Tue,4/26/2016 1:12 PM, James D. (Jimmy) Walker, Jr. via Elecraft wrote:
>> What interests me most in the IC-7300 is the ability for direct entry of a 
>> frequency by touching the waterfall display.
> 
> To the accuracy of the width of your finger. :)   I looked at the 7300 at 
> Visalia. Nice LOOKING radio at an entry level price.
> 
>>  The P-3 does not offer that feature,
> 
> While it doesn't have a touch screen, direct frequency entry can be done by 
> moving the marker to the blip on the screen and pushing the Menu button. And 
> to FAR greater precision.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Phil Hystad

I find it interesting that a “touch” interface seems to be popular with radios 
and some users.  It is certainly useful on a device like a smart phone and even 
a pad and some other kinds of interfaces (e.g. bank ATM screen).  But, a touch 
screen for a radio that already has uses for actual dials and buttons seems to 
me to be unnecessary.  And, that does not even consider the fact that touch 
screens need to be periodically cleaned from oily finger prints.

Of course, this is indeed an unsolicited opinion and comment.

73, phil, K7PEH


> On Apr 26, 2016, at 1:29 PM, Jim Brown  wrote:
> 
> On Tue,4/26/2016 1:12 PM, James D. (Jimmy) Walker, Jr. via Elecraft wrote:
>> What interests me most in the IC-7300 is the ability for direct entry of a 
>> frequency by touching the waterfall display.
> 
> To the accuracy of the width of your finger. :)   I looked at the 7300 at 
> Visalia. Nice LOOKING radio at an entry level price.
> 
>>  The P-3 does not offer that feature,
> 
> While it doesn't have a touch screen, direct frequency entry can be done by 
> moving the marker to the blip on the screen and pushing the Menu button. And 
> to FAR greater precision.
> 
> 73, Jim K9YC
> 
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Re: [Elecraft] Sherwood's receiver performance table updated


On Tue,4/26/2016 1:12 PM, James D. (Jimmy) Walker, Jr. via Elecraft wrote:

What interests me most in the IC-7300 is the ability for direct entry of a 
frequency by touching the waterfall display.


To the accuracy of the width of your finger. :)   I looked at the 7300 
at Visalia. Nice LOOKING radio at an entry level price.



  The P-3 does not offer that feature,


While it doesn't have a touch screen, direct frequency entry can be done 
by moving the marker to the blip on the screen and pushing the Menu 
button. And to FAR greater precision.


73, Jim K9YC

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread James D. (Jimmy) Walker, Jr. via Elecraft


On Tue,4/26/2016 12:53 PM, Doug Turnbull wrote:

Dear OMs and YLs,
  I think Bob says it well.  How can you compare a fine radio like the
7300 with a loaded K3.


How do we KNOW that it's a "fine radio?" I haven't seen a review by ARRL 
or RSGB. We have only Rob's measurements of the RECEIVER.



  They are not the same yet the 7300 will probably
work most of the DX that the K3 will for less money.A Cadillac is no
more functional than a Chevy.   They both go from A to B.   Okay, I would
prefer a Porsche but it does the same thing but in a more stylish and
exciting manner.   Your pocketbook decides.


Yep.


   A good few hams have both Flex and Elecraft radios - we are fortunate
to see these newer USA companies providing such good products.   For now I
am an Elecraft man and suspect this will be the case till the pine box but
different strokes for different folks.A TS930 will still do a good job
on HF CW.   Let us not seriously compare an entry level radio with the K3
and at the same time do not let the previous KX3 and K3 Sherwood ratings
lead one to believe that the KX3 is a better radio than the K3.   One needs
to consider the whole package and yes Elecraft provides the magic of
allowing access to the principle design engineers.


Well said, Doug.

73, Jim K9YC
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[Elecraft] Sherwood's receiver performance table updated

I’ve enjoyed this thread comparing the K-3 line with the IC-7300. Have the K-3 
with the P-3 Panadapter. However, I’m going to try purchase the IC-7300 in 
Dayton. What interests me most in the IC-7300 is the ability for direct entry 
of a frequency by touching the waterfall display. The P-3 does not offer that 
feature, and I’m told that it will not be available. With due regard to the 
superior performance of the K-3 receivers, I believe that state of the art now 
requires a more responsive Panadapter for the casual operator. BTW, I’m not 
expecting to part with my K-3. 

Jimmy, WA4ILO

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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Jim Rodenkirch

Don: requiring a wide ranging ATU is half of the question, Don!! What is
truly "significant" is this - many hams, new or otherwise, fail to
understand whether they really need an ATU in the shack or do they really,
REALLY need an ATU out at the antenna. For me, THAT's the mystifying piece
of the "ATU question" that always shows up.

71.5/72 de Jim Rodenkirch K9JWV


Don Wilhelm wrote
> Wunder,
> 
> The only reason I can understand is that they can get away by stating 
> that they have an internal ATU.  Sadly many hams (particularly newer 
> hams) gloss over the significance of the need for a wide range ATU.  
> They don't discover that they need an external tuner for their 
> "multiband" antenna until after they buy the transceiver and discover 
> that it is inadequate.
> 
> 73,
> Don W3FPR
> 
> On 4/25/2016 7:25 PM, Walter Underwood wrote:
>>> On Apr 25, 2016, at 4:08 PM, Wayne Burdick 

> n6kr@

>  wrote:
>>>
>>>- *Wide-range ATU (> 10:1 at 100 W; > 20:1 at low power) and two
>>> antenna jacks
>> I am really mystified about why transceivers include a 3:1 range ATU. It
>> adds $150-200 to the end cost to get an external ATU. It might add $50-75
>> to make the internal ATU wide-range. It is especially odd for an
>> entry-level rig, where people are likely to be using a low-slung dipole.
>> OK, it is very strange for the IC-7851, too.
>>
>>
> 
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Re: [Elecraft] KX3 - How to enable RF output meter? Stuck in ALC display

2016-04-26 Thread David Orman

Perfect, I'm positive I have SSB+CW enabled right now. I'll go disable and
test again. Thank you so much for the quick answer!

Respectfully,
David

On Tue, Apr 26, 2016 at 12:58 PM, David Anderson  wrote:

> David,
>
> This happens when SSB + CW is enabled.  In CW WGHT menu tap 1 to toggle
> between SSB+CW (enabled) and SSB -  CW
>
> Tapping Keyer/Mic knob toggles between Keyer speed and Mic Gain rather
> than Meter Scales  CMP/ALC and SWR/RF. The CMP/ALC scale is still shown
> temporarily when CMP or Mic Gain are adjusted.
>
> You can switch to DATA mode then change meter scales by tapping Keyer/mic
> knob then go back to SSB.
>
>
> 73 from David GM4JJJ
>
> > On 26 Apr 2016, at 16:54, David Orman  wrote:
> >
> > Hi,
> >
> > I tried tapping the keyer/mic button to change the display to RF output
> > from ALC while in USB and LSB modes, and it doesn't switch over. I seem
> to
> > remember this working before. I am on the latest firmware. Is there a
> trick
> > to this I'm missing?
> >
> > Thank you,
> > David
> > __
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Doug Turnbull

Dear OMs and YLs,
 I think Bob says it well.  How can you compare a fine radio like the
7300 with a loaded K3.   They are not the same yet the 7300 will probably
work most of the DX that the K3 will for less money.A Cadillac is no
more functional than a Chevy.   They both go from A to B.   Okay, I would
prefer a Porsche but it does the same thing but in a more stylish and
exciting manner.   Your pocketbook decides.

  A good few hams have both Flex and Elecraft radios - we are fortunate
to see these newer USA companies providing such good products.   For now I
am an Elecraft man and suspect this will be the case till the pine box but
different strokes for different folks.A TS930 will still do a good job
on HF CW.   Let us not seriously compare an entry level radio with the K3
and at the same time do not let the previous KX3 and K3 Sherwood ratings
lead one to believe that the KX3 is a better radio than the K3.   One needs
to consider the whole package and yes Elecraft provides the magic of
allowing access to the principle design engineers.   I sure do like this
company.

   73 Doug EI2CN

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob
Sent: 26 April 2016 18:34
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Sherwood's receiver performance table updated

I think Chris has hit it on the head.  Looking at a high-performance direct
sampling rig vs. a high-performance superhet with digital features is
looking at "definitely different animals".  Exactly the same sort of
problem that comes from a question that begins "if you could have only
one...".

I love my K3, but own a Flex 1500 as well (dipped my toe in to test the
water).  I could happily live with only the K3.  However, I haven't jumped
into the different world of the Flex 6700.  I suspect if I did, I wouldn't
want to part with either of them.  They are different tools -- each excels
in certain situations.

The key thing that strikes me as a real advantage of Elecraft is how well
an old K3 performs when upgraded. You can't do that to a Flex
1500/3000/5000.  Elecraft is the only company that consistently looks after
their customer base by providing continuous improvements.

73, Bob, WB4SON
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[Elecraft] Emailing: IMG_3138

2016-04-26 Thread will...@zendamateur.nl

Dear Elecraft team 

Consider This K2 with serial 06073 build...
Still standard, options wil follow
Have had already lots of fun.

Regards William PE1BSB 


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Re: [Elecraft] JT65 with KX3

2016-04-26 Thread Brian Waterworth

I would agree with the ext temp compensation.  It is the right thing to do
and let's the onboard computer handle the drift variations for you.  I
don't have the xg50, which is recommended.  I tried the wwv approach and
that did not work, even when wwv was coming in fairly strong at s7.  I
watched the collection on the kx3utility and it was good on the third try,
no gaps or fades that caused the beat frequency to be read incorrectly.

However, I have returned to the standard compensation as opposed to what I
attempted to do with wwv and the extended temp compensation.  I did it
three times and all results were worse than the standard.

I will try to build a stable frequency oscillator or perhaps purchase the
xg50 so I can do the temp compensation properly.  The standard
compensation seems to work ok.  There is still drift, but not as bad.  Once
the oscillator has warmed up, the standard compensation seems to do a
decent job.  But, my experience is like yours, I can see the drift on the
wsjtx program waterfall and in some cases it is 8-11hz.  I have to pay
attention when I run wsjtx as the person I am calling may not answer me on
the frequency I answered them on.

P.S.  My clock is set from the Internet and I am not sure how that equates
to drift that one sees on the waterfall.  Most of those I return a call to
are only out by 0.2 - 1.2 seconds.  The clock sync doesn't seem to have
anything to do with drift that one sees on the waterfall.  But I am
prepared to be educated if someone can demonstrate drift to time sync
correlation.

Regards
Brian
VE3IBW

On Monday, 25 April 2016, Don Wilhelm  wrote:

> Keith,
>
> Have you done the Extended Temperature Compensation procedure on that KX3?
> If not, you should do that.  It should reduce that drift due to
> temperature significantly.
>
> 73,
> Don W3FPR
>
> On 4/25/2016 6:34 PM, Keith Onishi wrote:
>
>> I am experiencing some frequency drift on operating JT65 with KX3 +
>> KXPA100. I was reported that my signal drifted 5 to 8Hz drift during my
>> transmission and noticed almost same amount of drift during my receiving
>> period.
>> Output power was 20W with KXPA100. OSC temp shows 36C on receiving and
>> 39C on transmitting.
>>
>>
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Re: [Elecraft] KX3 Suggested External Battery

Hi Dave,

Most batteries from this company and all from Bioenno Power include the 
electronics to balance charge between the cells. For Battery Space, 
study the poop sheet for the battery you're looking at to confirm that 
it's there. LiFePO4 batteries need specially designed chargers, and both 
companies will sell you one if you want it.  Both also sell chargers for 
use with solar panels. I strongly recommend the Genasun charge 
regulators, which are RF quiet. Buy them direct from Genasun for the 
lowest price.

73, Jim K9YC

On Tue,4/26/2016 11:18 AM, TFJM via Elecraft wrote:

Do you know if this battery includes Battery Mgmt System?

Sent from my iPhone

>On Apr 26, 2016, at 1:01 PM, Jim Brown-10 [via 
Elecraft]  wrote:
>
>On Tue,4/26/2016 6:44 AM, N5XL . wrote:

> >Here is my recommendation.
> >
> 
>http://www.batteryspace.com/lifepo4-26650-battery-12-8v-6-6ah-84wh-20a-rate-in-aluminum-box-with-pcb-7-92.aspx

>
>My neighbor, W6GJB, bought a 20Ah battery from them a year ago and was
>quite pleased both with the battery and the company. Their quality,
>range, and cost of their products, as well as their attitude, are quite
>comparable to Bioenno Power, the other one cited.
>

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Re: [Elecraft] KX3 Suggested External Battery

2016-04-26 Thread thelastdb

No Batteryspace.com batteries are balanced unless you specifically request a 
custom pack with balancing. But they call it equilibrium. 
Myron WVØHPrinted on Recycled Data  Original message From: TFJM 
via Elecraft  Date: 4/26/2016  12:18 PM  (GMT-07:00) 
To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 Suggested External 
Battery 
Thanks Jim

Do you know if this battery includes Battery Mgmt System?

Sent from my iPhone

> On Apr 26, 2016, at 1:01 PM, Jim Brown-10 [via Elecraft] 
>  wrote:
> 
> On Tue,4/26/2016 6:44 AM, N5XL . wrote: 
> > Here is my recommendation. 
> > 
> > http://www.batteryspace.com/lifepo4-26650-battery-12-8v-6-6ah-84wh-20a-rate-in-aluminum-box-with-pcb-7-92.aspx
> 
> My neighbor, W6GJB, bought a 20Ah battery from them a year ago and was 
> quite pleased both with the battery and the company. Their quality,   
> range, and cost of their products, as well as their attitude, are quite 
> comparable to Bioenno Power, the other one cited. 
> 
> 73, Jim K9YC 
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> If you reply to this email, your message will be added to the discussion 
> below:
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Re: [Elecraft] KxAtu and T1 VSWR?

2016-04-26 Thread Hajo Dezelski

Thanks Don,

thanks for your prompt replay. I already thought, that it would not be so
easy.
So I have to understand the formula and afterwards will do the math ...
this may take a while.

73 de

Hajo
 DL1SDZ


---
Cela est bien dit, mais il faut cultiver notre jardin.
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread Bob

I think Chris has hit it on the head.  Looking at a high-performance direct
sampling rig vs. a high-performance superhet with digital features is
looking at "definitely different animals".  Exactly the same sort of
problem that comes from a question that begins "if you could have only
one...".

I love my K3, but own a Flex 1500 as well (dipped my toe in to test the
water).  I could happily live with only the K3.  However, I haven't jumped
into the different world of the Flex 6700.  I suspect if I did, I wouldn't
want to part with either of them.  They are different tools -- each excels
in certain situations.

The key thing that strikes me as a real advantage of Elecraft is how well
an old K3 performs when upgraded. You can't do that to a Flex
1500/3000/5000.  Elecraft is the only company that consistently looks after
their customer base by providing continuous improvements.

73, Bob, WB4SON
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Re: [Elecraft] KxAtu and T1 VSWR?


Hajo,

The T1 tuner has a wide range.  The total matching range will be greater 
on high bands and less on lower bands.


Both the T1 and the KXAT1 (and other tuners) specify the matching range 
in terms of the maximum L and C available.  That is a more exact way of 
stating the range than stating SWR capability.


The KXAT1 is the most limited because it has only 3 inductors and 3 
capacitors to choose from.  It is optimized for the antenna shown in the 
KXAT1 manual.  On 80 meters it may need some extra help with a series or 
parallel inductor or capacitor external to the tuner.


If you are really ambitious, you could take the maximum inductance and 
capacity and run it through the formulas for an L network and obtain the 
matching capability for any frequency.  The inductors are series 
elements and the capacitors are shunt elements which can be switched 
from either the input side or the output side.


73,
Don W3FPR

On 4/26/2016 1:50 PM, Hajo Dezelski wrote:

Hello,

in another thread was said, that the auto-tuner of the new Icom had a 3:1
VSWR. I was looking up and down the net and didn't find any comparable
figures for the KxATu and the T1.

I know that I can match a wet towel, so could someone enlighten me and give
some numbers?




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Re: [Elecraft] KX3 Suggested External Battery

2016-04-26 Thread TFJM via Elecraft

Thanks Jim

Do you know if this battery includes Battery Mgmt System?

Sent from my iPhone

> On Apr 26, 2016, at 1:01 PM, Jim Brown-10 [via Elecraft] 
>  wrote:
> 
> On Tue,4/26/2016 6:44 AM, N5XL . wrote: 
> > Here is my recommendation. 
> > 
> > http://www.batteryspace.com/lifepo4-26650-battery-12-8v-6-6ah-84wh-20a-rate-in-aluminum-box-with-pcb-7-92.aspx
> 
> My neighbor, W6GJB, bought a 20Ah battery from them a year ago and was 
> quite pleased both with the battery and the company. Their quality,   
> range, and cost of their products, as well as their attitude, are quite 
> comparable to Bioenno Power, the other one cited. 
> 
> 73, Jim K9YC 
> __ 
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> 
> 
> If you reply to this email, your message will be added to the discussion 
> below:
> http://elecraft.365791.n2.nabble.com/KX3-Suggested-External-Battery-tp7616683p7616722.html
> To unsubscribe from KX3 Suggested External Battery, click here.
> NAML




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View this message in context: 
http://elecraft.365791.n2.nabble.com/KX3-Suggested-External-Battery-tp7616683p7616732.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] Subjecting W2 V/UHF Sensor to more than 200W


David,

I doubt that Elecraft has subjected it to destructive testing, but rates 
their products on the conservative side.


I would guess that it will survive occasional excessive power (like 
accidental short term), but I would not subject it to those levels on a 
regular basis.


73,
Don W3FPR

On 4/26/2016 1:55 PM, David Ferrington, M0XDF wrote:

I don’t know, potentially by 100W, but I’m looking to know what might be ok.



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Re: [Elecraft] Sherwood's receiver performance table updated

Interesting conversation.  There are 2 800 lb gorillas at the top of the list 
one of them is Elecraft and many Elecraft peripherals such as the KPA500 and 
KAT500, W2 etc work great with the other.  I own several radios  from both 
companies.  they are both awesome. They both have similar management and 
engineer interaction and support.  Neither of them are Yaesu, Kenwood or Icom. 

They are both great in their own right but they are definitely different 
animals (or fruits.. as in apples and oranges) and have different advantages 
and disadvantages.

IC 7300 is in a completely different class.

I am fortunate to have both top platforms to play with.

I am looking forward to playing with a Kpod soon!

Chris
N6WM

From: Elecraft [elecraft-boun...@mailman.qth.net] on behalf of Jim Brown 
[j...@audiosystemsgroup.com]
Sent: Tuesday, April 26, 2016 10:02 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Sherwood's receiver performance table updated

On Tue,4/26/2016 9:31 AM, EricJ wrote:
> I stand by what I said. Comparisons between Elecraft and other amateur
> manufacturers are unfair, apples to oranges, in large part because of
> the personal interaction of Eric and Wayne with those of us who enjoy
> their products.

I don't think the comparison is at all unfair -- the owners of ICOM,
Yaesu, and Kenwood can just as easily have the same level of
communication with their customers IF THEY WANT TO.

73, Jim K9YC
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Re: [Elecraft] Subjecting W2 V/UHF Sensor to more than 200W

2016-04-26 Thread David Ferrington, M0XDF

Thank you Bob, that is potentially the max output from the amp - but I’m 
planning on driving it from an XV144 (which I haven’t built yet) and will set 
that for a lower output, so I don’t get more than 200W on the sensor at the 
mast head

73 de David, M0XDF (K3 #174, P3 #108)
-- 
As a well spent day brings happy sleep, so life well used brings happy
death. -Leonardo da Vinci, painter, engineer, musician, and scientist
(1452-1519)

> On 26 Apr 2016, at 19:03, Robert Friess  wrote:
> 
> 300 watts for a second or two will do no harm.
> 
> Bob, N6CM
> 
> Designer of the Sensor
> 
> On Tue, Apr 26, 2016 at 10:55 AM, David Ferrington, M0XDF 
> > wrote:
> I don’t know, potentially by 100W, but I’m looking to know what might be ok.
> Thank everyone who calls out your faults, your anger, your impatience, your 
> egotism; do this consciously, voluntarily.
> -Jean Toomer, poet and novelist (1894-1967) 
> 
>> On 26 Apr 2016, at 17:52, Robert Friess > > wrote:
>> 
>> Exceed by how much?
>> 
>> Bob
>> 
>> On Tue, Apr 26, 2016 at 4:27 AM, David Ferrington, M0XDF 
>> > wrote:
>> Not that I’m planning to do that, but does anyone know it’s max tolerance 
>> over a few seconds if one was to exceed the 200W by mistake?
>> 73 de David, M0XDF (K3 #174, P3 #108)
>> --
>> The nice thing about standards is that there are so many of them to choose
>> from. -Andrew Tannenbaum, computer science professor (1944- )
>> __
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> 
> 

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Re: [Elecraft] Subjecting W2 V/UHF Sensor to more than 200W

2016-04-26 Thread Robert Friess

300 watts for a second or two will do no harm.

Bob, N6CM

Designer of the Sensor

On Tue, Apr 26, 2016 at 10:55 AM, David Ferrington, M0XDF <
m0...@alphadene.co.uk> wrote:

> I don’t know, potentially by 100W, but I’m looking to know what might be
> ok.
> Thank everyone who calls out your faults, your anger, your impatience,
> your egotism; do this consciously, voluntarily.
> -Jean Toomer, poet and novelist (1894-1967)
>
> On 26 Apr 2016, at 17:52, Robert Friess  wrote:
>
> Exceed by how much?
>
> Bob
>
> On Tue, Apr 26, 2016 at 4:27 AM, David Ferrington, M0XDF <
> m0...@alphadene.co.uk> wrote:
>
>> Not that I’m planning to do that, but does anyone know it’s max tolerance
>> over a few seconds if one was to exceed the 200W by mistake?
>> 73 de David, M0XDF (K3 #174, P3 #108)
>> --
>> The nice thing about standards is that there are so many of them to choose
>> from. -Andrew Tannenbaum, computer science professor (1944- )
>> __
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>
>
>
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Re: [Elecraft] KX3 - How to enable RF output meter? Stuck in ALC display

2016-04-26 Thread David Anderson via Elecraft

David,

This happens when SSB + CW is enabled.  In CW WGHT menu tap 1 to toggle between 
SSB+CW (enabled) and SSB -  CW

Tapping Keyer/Mic knob toggles between Keyer speed and Mic Gain rather than 
Meter Scales  CMP/ALC and SWR/RF. The CMP/ALC scale is still shown temporarily 
when CMP or Mic Gain are adjusted.

You can switch to DATA mode then change meter scales by tapping Keyer/mic knob 
then go back to SSB. 


73 from David GM4JJJ

> On 26 Apr 2016, at 16:54, David Orman  wrote:
> 
> Hi,
> 
> I tried tapping the keyer/mic button to change the display to RF output
> from ALC while in USB and LSB modes, and it doesn't switch over. I seem to
> remember this working before. I am on the latest firmware. Is there a trick
> to this I'm missing?
> 
> Thank you,
> David
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Re: [Elecraft] Subjecting W2 V/UHF Sensor to more than 200W

2016-04-26 Thread David Ferrington, M0XDF

I don’t know, potentially by 100W, but I’m looking to know what might be ok.
Thank everyone who calls out your faults, your anger, your impatience, your 
egotism; do this consciously, voluntarily.
-Jean Toomer, poet and novelist (1894-1967) 

> On 26 Apr 2016, at 17:52, Robert Friess  wrote:
> 
> Exceed by how much?
> 
> Bob
> 
> On Tue, Apr 26, 2016 at 4:27 AM, David Ferrington, M0XDF 
> > wrote:
> Not that I’m planning to do that, but does anyone know it’s max tolerance 
> over a few seconds if one was to exceed the 200W by mistake?
> 73 de David, M0XDF (K3 #174, P3 #108)
> --
> The nice thing about standards is that there are so many of them to choose
> from. -Andrew Tannenbaum, computer science professor (1944- )
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[Elecraft] KxAtu and T1 VSWR?

2016-04-26 Thread Hajo Dezelski

Hello,

in another thread was said, that the auto-tuner of the new Icom had a 3:1
VSWR. I was looking up and down the net and didn't find any comparable
figures for the KxATu and the T1.

I know that I can match a wet towel, so could someone enlighten me and give
some numbers?

73 de 

Hajo
 DL1SDZ


---
Cela est bien dit, mais il faut cultiver notre jardin.
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[Elecraft] OT April 17th Solar Flare Captured in 4K by NASA (Video)

2016-04-26 Thread David Ahrendts

So this is the beast that has disrupted everything over the last week!  
http://www.nasa.gov/feature/goddard/2016/sdo-captures-stunning-view-of-april-17-solar-flare
 

  

David A., KK6DA, Los Angeles



David Ahrendts   davidahren...@me.com   




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Re: [Elecraft] Enable/Disable KX3 amplifier keying remotely?


Michael,

The Keyout on most transceivers including the KX3 is active at all 
times, so you will have to invent an external way to open it.  I switch 
in series with the line is the easiest solution I know of.


73,
Don W3FPR

On 4/26/2016 9:31 AM, Michael Blake wrote:

My KX3 keys an Ameritron ALS-600 (modified for low drive) via the ACC2 RCA 
Phono connector.  I have looked but not found a way to enable/disable that 
amplifier keying lead remotely via any type of software command.  Is something 
available within the existing software that I have overlooked?

Michael Blake - K9JRI




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Re: [Elecraft] Sherwood's receiver performance table updated


On Tue,4/26/2016 9:31 AM, EricJ wrote:
I stand by what I said. Comparisons between Elecraft and other amateur 
manufacturers are unfair, apples to oranges, in large part because of 
the personal interaction of Eric and Wayne with those of us who enjoy 
their products. 


I don't think the comparison is at all unfair -- the owners of ICOM, 
Yaesu, and Kenwood can just as easily have the same level of 
communication with their customers IF THEY WANT TO.


73, Jim K9YC
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Re: [Elecraft] KX3 Suggested External Battery


On Tue,4/26/2016 6:44 AM, N5XL . wrote:

Here is my recommendation.

http://www.batteryspace.com/lifepo4-26650-battery-12-8v-6-6ah-84wh-20a-rate-in-aluminum-box-with-pcb-7-92.aspx


My neighbor, W6GJB, bought a 20Ah battery from them a year ago and was 
quite pleased both with the battery and the company. Their quality,  
range, and cost of their products, as well as their attitude, are quite 
comparable to Bioenno Power, the other one cited.


73, Jim K9YC
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Re: [Elecraft] Subjecting W2 V/UHF Sensor to more than 200W

2016-04-26 Thread Robert Friess

Exceed by how much?

Bob

On Tue, Apr 26, 2016 at 4:27 AM, David Ferrington, M0XDF <
m0...@alphadene.co.uk> wrote:

> Not that I’m planning to do that, but does anyone know it’s max tolerance
> over a few seconds if one was to exceed the 200W by mistake?
> 73 de David, M0XDF (K3 #174, P3 #108)
> --
> The nice thing about standards is that there are so many of them to choose
> from. -Andrew Tannenbaum, computer science professor (1944- )
> __
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Re: [Elecraft] Sherwood's receiver performance table updated

2016-04-26 Thread EricJ

Of course it is a big advantage. It's one of the reasons I've owned 
Elecraft rigs since I first became aware of them and currently have two 
K2s and a K1-4. I'd own a K3 if I didn't find the K2 perfectly 
satisfactory for my casual operating interests.


I stand by what I said. Comparisons between Elecraft and other amateur 
manufacturers are unfair, apples to oranges, in large part because of 
the personal interaction of Eric and Wayne with those of us who enjoy 
their products. In 60 years on the air I've had the chance to own or 
operate most of what has been offered. Except for my Drake 2B, my K1 is 
still my personal favorite, and the K2 close behind.


Eric

KE6US



On 4/25/2016 10:00 PM, Jim Brown wrote:
A big advantage of owning an Elecraft radio is that you CAN 
communicate directly with the Owners and Chief Engineer, they will 
listen to what you have to say, and often modify/upgrade their 
products based on what they hear from US!  Try that with ICOM. Or 
Yaesu. Or Kenwood.


73, Jim K9YC

On Mon,4/25/2016 6:19 PM, EricJ wrote:
The fact that you are having this conversation directly with one of 
the owners/designers of Elecraft and not one of the owners of ICOM is 
always going to make comparisons inherently unfair.


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[Elecraft] KX3 - How to enable RF output meter? Stuck in ALC display

2016-04-26 Thread David Orman

Hi,

I tried tapping the keyer/mic button to change the display to RF output
from ALC while in USB and LSB modes, and it doesn't switch over. I seem to
remember this working before. I am on the latest firmware. Is there a trick
to this I'm missing?

Thank you,
David
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Re: [Elecraft] Crowne Plaza Dayton room available

Hi

the room is no more available, I passed the room to the first answer I
received

thanks,
Jorge

2016-04-26 9:04 GMT-03:00 Jorge Diez - CX6VM :

> Hello
>
> I have a room, double bed,  in the Crowne plaza, may 18 to 22
>
> Rate is 145 + taxes
>
> Let me know if you want it and I will pass my reservation for you
>
>
> 73,
> Jorge
> CX6VM/CW5W
>



-- 
73,
Jorge
CX6VM/CW5W
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Re: [Elecraft] KX3 Suggested External Battery

2016-04-26 Thread Walter Underwood

Well, yes, that would be the fundamental difference between rechargeable and 
non-rechargeable batteries. It wasn’t clear whether the original post was about 
car camping or backpacking, so I offered the lightest solution.

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

> On Apr 25, 2016, at 10:44 PM, Jim Brown  wrote:
> 
> On Mon,4/25/2016 10:33 PM, Walter Underwood wrote:
>> You could carry 9 Ah of non-rechargeable AA’s for less weight (12 oz.) than 
>> 3 Ah of rechargeable LiFePO4.
> 
> Yes, BUT -- you can recharge the LiFePO4 batteries 2,000 times. Those 
> non-rechargeable batteries can be used only once.
> 
> 73, Jim K9YC
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[Elecraft] KX3 Suggested External Battery

2016-04-26 Thread N5XL .

Tom,

I use my KX3 for portable SOTA activation extensively. I do not worry
with internal batteries and instead, use a LiFePO4 battery exclusively.
When I did my research a couple years ago, I came to the conclusion that
for my style of operating, LiFePO4 technology is superior to regular
Li-PO batteries when factors such as battery safety and KX3 safety
(terminal voltage output) are taken into consideration. That said,
there are a number of vendors that supply such a battery that would be
suitable for use with the KX3, and you've already received one
recommendation from the list using LiFePO4 technology cells. Here is my
recommendation.

http://www.batteryspace.com/lifepo4-26650-battery-12-8v-6-6ah-84wh-20a-rate-in-aluminum-box-with-pcb-7-92.aspx

I decided on this model because the cells and charge controller are
housed in a extruded aluminum enclosure for extra safety and the bare
wire ends allowed me to configure it with powerpole connectors.
Additionally, the black plastic top to the enclosure is removable should
you ever have to go inside and replace the cells or the charge
controller. I added powerpole connectors as to be able to plug the
battery into something like a rigrunner for a DC power distribution hub
for powering more than just the KX3 when in the field. I have two years
so far on this pack with no problems to date.

I usually get two to three days of SOTA type operation out of this
battery when in field use. If I am powering other power hungry devices
(charging my cell phone for example) simultaneously while using the KX3,
I can easily get a full day plus. Just depends on how you operate and
what you intend to power besides the KX3.

Good luck
73 Dave N5XL
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[Elecraft] Enable/Disable KX3 amplifier keying remotely?

2016-04-26 Thread Michael Blake

My KX3 keys an Ameritron ALS-600 (modified for low drive) via the ACC2 RCA 
Phono connector.  I have looked but not found a way to enable/disable that 
amplifier keying lead remotely via any type of software command.  Is something 
available within the existing software that I have overlooked?

Michael Blake - K9JRI






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[Elecraft] Need KAT500 firmware testers for KAT500 fw 01.75

2016-04-26 Thread Dick Dievendorff

I've updated KAT500 firmware to behave a bit better when the ATU is informed
of frequency change by a serial port F, FA, or MT command.  I need a few
KAT500 owners to verify that I haven't made any additional unplanned
changes.

 

If you're able to help test KAT500 firmware, please send e-mail to me
directly, dick at elecraft.com.

 

Thanks!

73 de Dick, K6KR

 

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[Elecraft] Crowne Plaza Dayton room available

Hello

I have a room, double bed,  in the Crowne plaza, may 18 to 22

Rate is 145 + taxes

Let me know if you want it and I will pass my reservation for you


73,
Jorge
CX6VM/CW5W
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[Elecraft] FS: Green Heron RT-21pp controller

Hello

I have a Green Heron RT-21pp controller for sale. Very few use, like new in
original box

This is the controller you need for the powerful rotor, K7NV Prop Pitch

Asking $ 400.- + shipping from PA ,17543

If interested contact me directly

-- 
73,
Jorge
CX6VM/CW5W
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[Elecraft] FS: DX Doubler SO2R, USB and cables