date:20171015

Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Brad J. Butler via Elecraft

Hi everyone,

I've wrestled with this too.  My 9 year old son really enjoyed learning how to 
send his name perfectly in CW while being graded by the KX2's decoder.  He 
wouldn't stop until he got it perfect - no spaces or anything!  But my 11 year 
old gave up sorta quickly.  I drag them on SOTA activations and they quickly 
get bored at the summits, and they don't quite enjoy the hikes yet (less 
entertaining than video games).  Even the super tall ones.  I'd try a couple 
different aspects of the hobby and see which one sticks.  The Raspberry Pi idea 
is great, the CW thing took for one of my kids (could maybe sell it as a code 
you can talk in that nobody will know) but not really the other, contesting 
might grab an older competitive kid, and other kids might dig amateur radio 
satellites.  They're all different.  In the age of smart phones, Skype, and 
email, it can be hard to compete.  Skip's comment about getting friends 
interested too is pretty smart.

As far as other hikers during SOTA, I always try to operate out of the way with 
a small footprint (AlexLoop and KX2 with earphones).  I get more questions and 
probably do more good PR for ham radio than bad PR.  Lots of folks I meet while 
doing SOTA think it's interesting.  I usually mention how much power I'm using 
and which states/countries I reached.  Never had anyone complain.

-Brad Butler
W6BJB/JS6TQS

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Fred Jensen
Sent: Sunday, October 15, 2017 8:38 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur 
Radio and Electronics

www.sotawatch.org is the main site.  Like everything else, one size does not 
fit all.  The programme [it started in the UK] offers a number of awards which 
attract some but not all folks.  Some are just outdoor folks who would be 
hiking/camping anyway.  Some don't hike but derive pleasure from working the 
QRP/antenna challenged stations from home. They're called chasers and I am one, 
old injuries plus the accumulation of birthdays that followed tend to restrict 
me physically.  There are drive-up summits and I've done a few of them.  One 
very active summiteer runs up the mountains.  Another [WG0AT] uses pack goats.

In all the times I've been on a summit, I've met a number of other hikers.  I'm 
CW only, but I've activated with others on SSB and none of the "visitors" have 
been upset.  SOTA almost universally takes place on the summit itself, not the 
trail.

But SOTA was just an example for Ted.  The primary point was that success with 
his grandson, if success means the kid getting interested in ham radio, will 
likely be enhanced if he can couple the radio part up with some interest the 
boy already has and enjoys.  Double points if his grandson can include his 
friends in the activities.

73,

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

On 10/15/2017 2:21 PM, ab2tc wrote:
> I hate to be a wet blanket, but I am not sure if I understand the joy of
> activating peaks on ham radio. How do other hikers react to this? I know I
> am extremely annoyed by people gabbing on their cell phones on the trail. Is
> ham radio that much different?
>
> Knut - AB2TC
>

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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Fred Jensen

www.sotawatch.org is the main site.  Like everything else, one size does 
not fit all.  The programme [it started in the UK] offers a number of 
awards which attract some but not all folks.  Some are just outdoor 
folks who would be hiking/camping anyway.  Some don't hike but derive 
pleasure from working the QRP/antenna challenged stations from home.  
They're called chasers and I am one, old injuries plus the accumulation 
of birthdays that followed tend to restrict me physically.  There are 
drive-up summits and I've done a few of them.  One very active summiteer 
runs up the mountains.  Another [WG0AT] uses pack goats.


In all the times I've been on a summit, I've met a number of other 
hikers.  I'm CW only, but I've activated with others on SSB and none of 
the "visitors" have been upset.  SOTA almost universally takes place on 
the summit itself, not the trail.


But SOTA was just an example for Ted.  The primary point was that 
success with his grandson, if success means the kid getting interested 
in ham radio, will likely be enhanced if he can couple the radio part up 
with some interest the boy already has and enjoys.  Double points if his 
grandson can include his friends in the activities.


73,

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

On 10/15/2017 2:21 PM, ab2tc wrote:

I hate to be a wet blanket, but I am not sure if I understand the joy of
activating peaks on ham radio. How do other hikers react to this? I know I
am extremely annoyed by people gabbing on their cell phones on the trail. Is
ham radio that much different?

Knut - AB2TC



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[Elecraft] FS: Elecraft K3/K3s Main and VFO B Knob Combo, Black With Finger Dimple

2017-10-15 Thread Dave AD6A

For Sale - one Elecraft K3/K3s Main and VFO B Knob Combo, Black With Finger
Dimple, mint condition, with Allen key.

 

Unobtainable new. This is the first version of the combo knobs shown here:

 

http://www.73cnc.com/ProductDetails.asp?ProductCode=K3COMBOBLK

 

Note: these knobs have smooth milled out finger dimples - they are NOT the
newer version with ball bearing dimples, but they spin real nice all the
same.

 

$150 shipped (Priority Mail) conus - PayPal only

 

Cheers es 73,

Dave Fifield

AD6A

 



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Re: [Elecraft] KX2 Batt

2017-10-15 Thread K9MA

Yes, I meant separate batteries, NOT the Elecraft battery.  I should have made 
that clear. 

One possibility I've considered to reduce weight is a three cell battery holder 
for AA Li-ion batteries, good for about 800 mAh, as I have used with the KX1.  
With the KX2, they would be good for about 2 hours of CW contest operation at 
5W.

73,
Scott K9MA 
--

Scott Ellington

 --- via iPad

> On Oct 15, 2017, at 3:15 PM, Don Wilhelm  wrote:
> 
> Scott,
> 
> The stock battery pack is sealed as one unit, not 3 individual cells.
> Perhaps you are talking about a possible alternative battery supply and not 
> the one sold by Elecraft.
> 
> 73,
> Don W3FPR
> 
>> On 10/15/2017 3:59 PM, K9MA wrote:
>> One possibility would be to get a 3-cell battery holder, and charge the 
>> cells independently.  A charger which charges several cells simultaneously, 
>> but independently, would assure balance.  Unless you use smaller cells, 
>> however, the will have to be external.

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[Elecraft] K2 PLL range test fails

2017-10-15 Thread Mike Maiorana

Since fixing my BFO range issue I started going through a full alignment. I
roughly set the BFO for all the filters. I noticed my frequency display was
off about 1500 Hz, so I re-set the 4MHz oscillator, then tried to run CAL
PLL. The CAL PLL started, but never finished. It just sat right around
12.1MHz.

I went back and tried the "PLL Reference Oscillator Range Test", which had
passed the first time I went through calibration. Now, it is "stuck" on
12.097MHz. What is strange is that it will jump briefly when I press Band+
and Band-, but it settles back to 12.097MHz.

I put a volt meter on pin 1 of U6 on the RF board to check the control
voltage. When I press Band- I can see the voltage briefly drop to near
zero. When I press Band+ it jumps to 7.5V or so, then goes back to the
original value.

If I rotate the VFO knob I can see the PLL frequency and the control
voltage vary over a range of about 5kHz on the VFO.

It seems that the PLL is moving with the control voltage, but the Band+ and
Band- keys during Cal FCTR don't seem to be doing what they should. Is it
possible that I fouled up another part of the calibration that is causing
this weird behavior? It sure feels like I'm doing something wrong, but I
can't figure it out.

I did a factory reset (hold 4,5,6 and power on), but I'm still seeing the
same issue with the PLL.

Any help will be greatly appreciated.

Thanks and 73
Mike M.
KU4QO
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[Elecraft] FS: Weighted Tuning Knob with Ball Bearing Dimple & Aluminum Inlay for Elecraft KX3

2017-10-15 Thread Dave AD6A

For Sale - one Weighted Tuning Knob with Ball Bearing Dimple & Aluminum
Inlay for Elecraft KX3, mint condition, with Allen key.

 

Unobtainable new. See
http://www.73cnc.com/ProductDetails.asp?ProductCode=KX3DELUXE

 

$100 shipped (Priority Mail) conus - PayPal only

 

Cheers es 73,

Dave Fifield

AD6A

 



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Re: [Elecraft] K3 silent on power up

2017-10-15 Thread Steve Webre

Folks,


Have a K3 (#8829) that has been spectacular to date with one exception.  Since 
first put together, about 10% of the time when powering up, the radio remains 
silent with the P3 flat lining.  All front panel lights and the main display 
come on as normal with no error messages displayed.   Turning the K3 off, 
waiting several seconds and turning back on restores normal operation with no 
other glitches/problems observed.


All software in both the K3 and P3 is current and both update without issue.   
Unit is always shut down by the radio power switch and seems to work flawlessly 
otherwise.

Any others see this condition?


-Steve-
AF5VR


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Re: [Elecraft] Software Additions

2017-10-15 Thread Joe Subich, W4TV




Could the Elecraft radio software be changed so that K3/KSs radios
(equipped with the proper AM or FM filter) have a "WDATA" mode that 
allows receiving and transmitting this 5 kHz bandwidth?

The K3 has a 4.25 KHz hardware audio filter following the ADC.  Using
either the AM or FM filter, bandwidth can already be set to 4 KHz
(Shift=2.10, Width=4.00).

73,

   ... Joe, W4TV


On 10/15/2017 4:01 PM, John Hendricks wrote:

As I grow older with hearing loss I have become interested in the multitude
of digital modes that are available because they don't rely on good
hearing.  A bandwidth of up to 5 kHz is used by the popular WSJT-X
software.  Could the Elecraft radio software be changed so that K3/KSs
radios (equipped with the proper AM or FM filter) have a "WDATA" mode that
allows receiving and transmitting this 5 kHz bandwidth?  It would also be
nice too do the same thing for the KX3/KX2 but it might not be possible
after looking at the radio design.

John K7JLT
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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread David Shoaf

I'm with Fred.  I gave both of my grandsons a  Kano and they have just love
them   .  This is, essentially, a  Raspberry Pi with a
custom-built Linux operating system   .  

They've learned Scratch, a procedural-type of programming language that uses
building blocks to create the procedures.  They've also learned how to use
programming to make things go faster when playing  Minecraft
  .  

The kids don't know they're learning process, procedure and logic but they
do.  When they're introduced to more formal programming, however, they'll be
well up the learning curve.  This is the introduction to the Maker movement
for them.  They've since been to a robot summer camp and they ate that up,
too.

Why do I suggest this first rather than take them up to a mountain top and
send morse code with them?  Its the hook.  Once they see how we merge
computers and the digital modes, I'm expecting the grandsons to have a
better sense of what I'm doing.  They see me doing things with a Raspberry
Pi and an Arduino with ham radio.  That's the bridge.

It is all about pulling them along, folks.

Cheers,

David/KG6IRW



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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Cady, Fred

It sounds to me like the makerspace idea is pretty cool.  I may have to join 
one here in Bozeman cause project space (and projects) are seriously limited in 
the new digs.

Googling makerspace for Denver looks like there are number of places.  Maybe 
some would be better than others for your grandson.


Might be a good idea on 40m but I don't have a mobile antenna for that band.


Cheers,

Fred



From: elecraft-boun...@mailman.qth.net  on 
behalf of Dauer, Edward 
Sent: Sunday, October 15, 2017 9:46 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio 
and Electronics

Looking for suggestion about books or kits or whatever else that might interest 
a ten year old to electronics and to amateur radio.  He is adept at mechanical 
things and pretty bright.  What else could he be?  He’s my grandson.

But his understanding of electronics is well insulated by contemporary smart 
phones and games and the like, about the innards of which one can learn nothing 
in the old way – the way we did it, by taking the family radio apart and then 
having to learn how to put it back together.

Any other grandpas or grandmas out there have experiences to share?

Thanks in advance,

Ted, KN1CBR

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Re: [Elecraft] K2 BFO test failed

2017-10-15 Thread Mike Maiorana

Don,
My replacement BFO crystals arrived today and I installed them. My BFO
range is now 5.66 kHz. FIXED! Thank you!

I have to add a note about what I call "Elecraft Mojo". The crystals were
back ordered so there was a delay before they could be shipped. The package
was sent Friday from California on its way to Florida. USPS web page said
that the package would deliver on Monday. I checked the tracking info this
morning (Sunday) and it said that the package was at the local sorting
facility. So, on track for a Monday delivery. I went out to the mailbox to
drop off an outgoing letter this afternoon and I was surprised to see a
Priority Mail box inside. Sure enough, it was my Elecraft parts order,
delivered by the USPS ON SUNDAY!!! To make sure I wasn't losing my mind I
checked the tracking info again and sure enough, it was sorted and
delivered today. I have NEVER received regular mail on a Sunday. Just more
of that Elecraft Mojo.

And, of course, my tiny little order was treated with the same urgency and
respect as when I bought the radio new. What a great company.

Now, off to finish the alignment!
Thanks again and 73
Mike M.
KU4QO

On Sat, Sep 30, 2017 at 10:53 PM, Mike Maiorana  wrote:

> Don,
> Thank you again for your very detailed response. I think I've found the
> problem.
> After doing the visual checks you suggested I wanted to try and isolate
> the crystals to see if the problem was there.
> I left L33 alone and carefully removed the BFO crystal that was accessible
> without removing the inductor. Now CAL FCTR showed the BFO frequency as
> 0. Interesting.
>
> I then removed L33 and the second BFO crystal. Using a simple crystal
> tester/oscillator I have showed the second crystal (the one under L33) did
> not oscillate. The other crystal seemed to oscillate fine. So, it looks
> like an order for a pair of BFO crystals should get me back in business, or
> at least let me continue the alignment. Hopefully this was the only problem.
>
> Thanks again Don for your expert advice. I'll follow up when I get the
> replacement parts.
> Best regards and 73
> Mike M.
> KU4QO
>
>>
>>> I'm having an issue at the BFO test. The BFO high frequency is
>>> 4916.04 kHz
>>> and the low frequency is 4913.82 kHz. That's a difference of
>>> 2.19 kHz, well
>>> below the 3.6 kHz stated minimum.
>>>
>>>
>>>
>>
>
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Re: [Elecraft] P3 not showing anything

2017-10-15 Thread Keith Onishi

Congratulations to your having found the cause.
I have experienced similar but from different cause, which was unstable 
connection inside the IF interface cable supplied with P3.
After replacing the coaxial cable with my home made one, my P3 started working 
perfectly again.

73 de JH3SIF, Keith

Kiichiro (Keith) Onishi
Sent from iPad

2017/10/16 0:53、Andrew Holman  のメッセージ:

> Thanks Don, I decided to take a look again at the inside of the radio.
> Re-seated all the cards and then took the bottom off. Guess what, that
> single cable that attaches to the bottom of the board was disconnected,
> probably from when I was putting the filter in.  I connected that up and
> all is right with the world again.
> 
> Thanks for all the help and always remember to check that cable on the
> bottom of the radio :)
> 
>> On Sun, Oct 15, 2017 at 5:31 PM, Don Wilhelm  wrote:
>> 
>> Andy,
>> 
>> Do you have another receiver?  If so, connect it to the K3 IF OUT.  If you
>> hear signals, then the K3 is working fine, look at the P3 for the problem.
>> 
>> OTOH, if you do not hear signals, review the work you have done - was a
>> cable left unplugged inside the K3 or other "silly" stuff like that.
>> 
>> The IF takeoff is before the roofing filters, but the BPF3 is before the
>> IF takeoff.  Check your work with the KBPF3 installation.
>> 
>> 73,
>> Don W3FPR
>> 
>> 
>>> On 10/15/2017 5:16 PM, NB8F wrote:
>>> 
>>> NOTE I have also tried removing everything in-line and just having the
>>> antenna, radio and P3 connected.
>>> 
>>> I also tried removing the new board, but I did not try removing the 6khz
>>> filter. This all worked fine before today.
>>> 
>> 
> 
> 
> -- 
> --
> NB8F
> Andy Holman
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Re: [Elecraft] KX2 Batt

2017-10-15 Thread Bill Johnson

To directly answer the question, the balancing circuitry is built into the 
battery for the KX2.  Typical for these types of enclosed batts.  The balancing 
device fits within the depression of the cells.  

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Sunday, October 15, 2017 2:05 PM
To: Tony G6GLP ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX2 Batt

Tony,

The battery must be removed for charging.
The charger and battery are from the same manufacturer and I figure they have 
"done it right" whether that be a balancing circuit in the battery pack or some 
device in the charger.

73,
Don W3FPR

On 10/15/2017 2:36 PM, Tony G6GLP wrote:
> Hi All,
> Decision made  now and I am going for the KX2 but now I have a 
> question about the Batt Li-ion. The charger looks like it charges down 
> the power lead and I am wondering how the balancing is done. Does the 
> pack have its own balancing circuit or what.
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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Tox

One of the past speakers at Pacificon sold it at a private high school as
teaching how to talk to the ISS and satellites. Everything else came
following that hook.

On Oct 15, 2017 2:46 PM, "Richard Thorne"  wrote:

> Hi Knut,
>
> I've operated a couple SOTA's this year.
>
> So far other hikers have been quite interested in what I was doing and
> didn't seemed to be annoyed, just curious in what I was doing.
>
> Rich - N5ZC
>
> On 10/15/2017 4:21 PM, ab2tc wrote:
>
>> Hi again,
>>
>> Not a bad idea. We were very successful in getting our four children
>> interesting in the outdoors. The oldest daughter and her husband are even
>> into backpacking in the back country (Algonquin park), something we never
>> got into. The other three are very good hikers, too.
>>
>> I hate to be a wet blanket, but I am not sure if I understand the joy of
>> activating peaks on ham radio. How do other hikers react to this? I know I
>> am extremely annoyed by people gabbing on their cell phones on the trail.
>> Is
>> ham radio that much different?
>>
>> Knut - AB2TC
>>
>>
>> Gary Hawkins wrote
>>
>>> I'll try a completely different tack.
>>>
>>> If you like the outdoors, how about Summits-on-the-Air (SOTA)? You'll get
>>> to spend time planning your SOTA adventure, and taking the hike to the
>>> peak.  He'll get to see you operating and hopefully that will encourage
>>> him to be interested as well. He can help you to build things like
>>> portable antennas and battery packs. If you get really adventurous one
>>> day
>>> adventures can turn into weekend camping.
>>>
>>> My daughter is 3 years old. We have started her on short hikes and I
>>> hopeful next year she can do her first small peaks. Not sure how I'll
>>> keep
>>> her entertained on the summit but I'll cross that bridge when I get
>>> there.
>>>
>>> 73's Gary K6YOA
>>>
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Re: [Elecraft] P3 not showing anything

2017-10-15 Thread Andrew Holman

Thanks Don, I decided to take a look again at the inside of the radio.
Re-seated all the cards and then took the bottom off. Guess what, that
single cable that attaches to the bottom of the board was disconnected,
probably from when I was putting the filter in.  I connected that up and
all is right with the world again.

Thanks for all the help and always remember to check that cable on the
bottom of the radio :)

On Sun, Oct 15, 2017 at 5:31 PM, Don Wilhelm  wrote:

> Andy,
>
> Do you have another receiver?  If so, connect it to the K3 IF OUT.  If you
> hear signals, then the K3 is working fine, look at the P3 for the problem.
>
> OTOH, if you do not hear signals, review the work you have done - was a
> cable left unplugged inside the K3 or other "silly" stuff like that.
>
> The IF takeoff is before the roofing filters, but the BPF3 is before the
> IF takeoff.  Check your work with the KBPF3 installation.
>
> 73,
> Don W3FPR
>
>
> On 10/15/2017 5:16 PM, NB8F wrote:
>
>> NOTE I have also tried removing everything in-line and just having the
>> antenna, radio and P3 connected.
>>
>> I also tried removing the new board, but I did not try removing the 6khz
>> filter. This all worked fine before today.
>>
>


-- 
--
NB8F
Andy Holman
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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Richard Thorne


Hi Knut,

I've operated a couple SOTA's this year.

So far other hikers have been quite interested in what I was doing and 
didn't seemed to be annoyed, just curious in what I was doing.


Rich - N5ZC

On 10/15/2017 4:21 PM, ab2tc wrote:

Hi again,

Not a bad idea. We were very successful in getting our four children
interesting in the outdoors. The oldest daughter and her husband are even
into backpacking in the back country (Algonquin park), something we never
got into. The other three are very good hikers, too.

I hate to be a wet blanket, but I am not sure if I understand the joy of
activating peaks on ham radio. How do other hikers react to this? I know I
am extremely annoyed by people gabbing on their cell phones on the trail. Is
ham radio that much different?

Knut - AB2TC


Gary Hawkins wrote

I'll try a completely different tack.

If you like the outdoors, how about Summits-on-the-Air (SOTA)? You'll get
to spend time planning your SOTA adventure, and taking the hike to the
peak.  He'll get to see you operating and hopefully that will encourage
him to be interested as well. He can help you to build things like
portable antennas and battery packs. If you get really adventurous one day
adventures can turn into weekend camping.

My daughter is 3 years old. We have started her on short hikes and I
hopeful next year she can do her first small peaks. Not sure how I'll keep
her entertained on the summit but I'll cross that bridge when I get there.

73's Gary K6YOA

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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Edward R Cole


I got started in 1958 (almost 60 years ago).

There was no Internet, google, personal computers, or even hand 
calculators (unless you include the pencil).


I was not introduced by a mentor (elmer) or any ham.  It was some 
neighbor kids family table Zenith Ocean-O-Graphic radio.  I was 
twelve and visiting a couple friends and noticed the radio had 
several bands and one said "police".  I asked if they ever listened 
to the police on the radio; they hadn't. So I suggested giving it a 
try.  Well we heard no police at 5-MHz but after tuning lower 
encountered a lot of people talking (it was below 4-MHz).  I later 
found out that was ham radio.


I suppose there was some books at the community library (I was kinda 
strange as I frequented the library looking things up in the 
encyclopedia and reading magazines).  I was building model rockets 
with stuff from the hardware store at least a couple years before Sputnik.


As I said there were no local hams in our little farm community.  But 
sometime later I found out about an evening class on ham radio at a 
nearby town.  I got my dad to drive me there over several weeks and 
the teacher was a young HS music teacher who became my elmer giving 
me my Novice Exam.


I had listened late at night to AM stations from far away so guess 
that also contributed to my interest.  But I had to build my first 
radio from a kit (Knight kit Ocean Hopper).  I saved up allowance for 
half a year and did not even have any tools (my dad bought me a 
solder gun for my birthday).  He also bought my first transmitter 
(DX35) from my elmer who wanted to upgrade to a DX100.  My license 
arrive Nov. 11, 1958.

http://www.kl7uw.com/1958%20HamStation.jpg

I built my first antenna from TV twinlead (40m folded dipole).  After 
we moved to a larger community (2000) there was a TV shop so I 
frequented that (owner and one of the technicians were hams).


The rest was history "as they say".  There were $15 WWII surplus 
radios, old TV towers, more HB antenna, and Heathkit.  My CW key came 
by mail order from a store in Connecticut called the radio shack (way 
before the chain existed).


So many more ways to get started these days.  In the end its the 
kid's own curiosity and interest that will bring him into ham radio.


73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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Re: [Elecraft] P3 not showing anything

2017-10-15 Thread NB8F

Tested the cable and shield to shield, showed 0, pin to pin showed 0 and pin
to shield showed 1. 

The cable appears to be OK.



-
NB8F - Andy
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Elecraft owner since June 2017
Ham since March 2015
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Re: [Elecraft] P3 not showing anything

2017-10-15 Thread Don Wilhelm


Andy,

Do you have another receiver?  If so, connect it to the K3 IF OUT.  If 
you hear signals, then the K3 is working fine, look at the P3 for the 
problem.


OTOH, if you do not hear signals, review the work you have done - was a 
cable left unplugged inside the K3 or other "silly" stuff like that.


The IF takeoff is before the roofing filters, but the BPF3 is before the 
IF takeoff.  Check your work with the KBPF3 installation.


73,
Don W3FPR

On 10/15/2017 5:16 PM, NB8F wrote:

NOTE I have also tried removing everything in-line and just having the
antenna, radio and P3 connected.

I also tried removing the new board, but I did not try removing the 6khz
filter. This all worked fine before today.

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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread ab2tc

Hi again,

Not a bad idea. We were very successful in getting our four children
interesting in the outdoors. The oldest daughter and her husband are even
into backpacking in the back country (Algonquin park), something we never
got into. The other three are very good hikers, too.

I hate to be a wet blanket, but I am not sure if I understand the joy of
activating peaks on ham radio. How do other hikers react to this? I know I
am extremely annoyed by people gabbing on their cell phones on the trail. Is
ham radio that much different?

Knut - AB2TC


Gary Hawkins wrote
> I'll try a completely different tack.
> 
> If you like the outdoors, how about Summits-on-the-Air (SOTA)? You'll get
> to spend time planning your SOTA adventure, and taking the hike to the
> peak.  He'll get to see you operating and hopefully that will encourage
> him to be interested as well. He can help you to build things like
> portable antennas and battery packs. If you get really adventurous one day
> adventures can turn into weekend camping.
> 
> My daughter is 3 years old. We have started her on short hikes and I
> hopeful next year she can do her first small peaks. Not sure how I'll keep
> her entertained on the summit but I'll cross that bridge when I get there.
> 
> 73's Gary K6YOA
> 
> __
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Re: [Elecraft] P3 not showing anything

2017-10-15 Thread NB8F

NOTE I have also tried removing everything in-line and just having the
antenna, radio and P3 connected. 

I also tried removing the new board, but I did not try removing the 6khz
filter. This all worked fine before today. 



-
NB8F - Andy
Elecraft K3S - #11282 / KX2 - #1791
Elecraft owner since June 2017
Ham since March 2015
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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Fred Jensen

Number of wives: 1.  Number of wives interested in ham radio: 0.  We 
have 4 kids, 11 grandkids, and 5 great grandkids [so far].  Number 
showing any interest in my ham radio: essentially zero.  Joe, at perhaps 
14, came in and asked what I was doing.  When I told him I was competing 
in a contest, he got a bit excited and his next question was, "How do 
you win?" His interest did not extend past that question.


A number of resources have been suggested [kits, projects, etc] but in 
my experience, those "work" only if they can tap into an interest area 
your grandson already has.  For example, a good friend has a now 14 yr 
old grandson who was somewhat immersed in Scouting, and really liked 
outdoors activities [hiking, camping, etc].  My friend ran into Summits 
on the Air when grandson was about 10.


Radio and SOTA added a new dimension to outdoor things and had the added 
advantage that he and his grandson could take advantage of shorter time 
periods than camping required to activate a summit. He bought a used 
FT-817 for grandson who now has a General.  Kids today carry the "Magic 
of Radio" around in the pockets of their cargo shorts, and a home-brewed 
station is exceedingly rare. Everything is pretty much just plug-N-play, 
like everything else in their lives.


Good luck, I hope you can find an avenue

73,

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

On 10/15/2017 8:46 AM, Dauer, Edward wrote:

Looking for suggestion about books or kits or whatever else that might interest 
a ten year old to electronics and to amateur radio.  He is adept at mechanical 
things and pretty bright.  What else could he be?  He’s my grandson.

But his understanding of electronics is well insulated by contemporary smart 
phones and games and the like, about the innards of which one can learn nothing 
in the old way – the way we did it, by taking the family radio apart and then 
having to learn how to put it back together.

Any other grandpas or grandmas out there have experiences to share?

Thanks in advance,

Ted, KN1CBR



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Re: [Elecraft] P3 not showing anything

2017-10-15 Thread Andrew Holman

I did. In the video, it shows me receiving a CW signal. I can receive and
transmit fine on both of my antennas. I have been listening to the PA QSO
Party all afternoon as well. For whatever reason it still doesn't show any
signals on the P3.

-Andy

On Sun, Oct 15, 2017 at 5:11 PM, Ian Kahn  wrote:

> Andy,
>
> This may be a dumb question, but did you reconnect your antenna feed line?
> I can't tell you how many times I've made that mistake. :-)
>
> 73 de,
>
> Ian, KM4IK
>
> On Oct 15, 2017 3:51 PM, "NB8F"  wrote:
>
>> Today I went about upgrading my K3S with the KBPF3 board and a 6khz
>> filter.
>> I moved all my filters down one slot and put the 6khz filter in the first
>> slot. I installed the KBPF3 board, turned it on in the config etc.
>>
>> I then went to the K3 utility and configured my filters, all seemed to go
>> well.
>>
>> I turned the radio on after connecting all the cables and the pan adapter
>> does not show any signals. It is getting frequency information and changes
>> as I move the dial.
>>
>> I have the cable connected into IF OUT on the radio and IF IN on the P3,
>> and
>> I have tried both of the serial cables that came with the radio.
>>
>> Connection to the computer works, the radio itself boots with no errors,
>> but
>> nothing shows on the panadapter.
>>
>> See video attached for any help.
>> https://youtu.be/Md3ILmdJLDI
>>
>> Thanks in advance for any help.
>>
>> Andy (NB8F)
>>
>>
>>
>> -
>> NB8F - Andy
>> Elecraft K3S - #11282 / KX2 - #1791
>> Elecraft owner since June 2017
>> Ham since March 2015
>> --
>> Sent from: http://elecraft.365791.n2.nabble.com/
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>


-- 
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Andy Holman
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Re: [Elecraft] P3 not showing anything

2017-10-15 Thread Ian Kahn

Andy,

This may be a dumb question, but did you reconnect your antenna feed line?
I can't tell you how many times I've made that mistake. :-)

73 de,

Ian, KM4IK

On Oct 15, 2017 3:51 PM, "NB8F"  wrote:

> Today I went about upgrading my K3S with the KBPF3 board and a 6khz filter.
> I moved all my filters down one slot and put the 6khz filter in the first
> slot. I installed the KBPF3 board, turned it on in the config etc.
>
> I then went to the K3 utility and configured my filters, all seemed to go
> well.
>
> I turned the radio on after connecting all the cables and the pan adapter
> does not show any signals. It is getting frequency information and changes
> as I move the dial.
>
> I have the cable connected into IF OUT on the radio and IF IN on the P3,
> and
> I have tried both of the serial cables that came with the radio.
>
> Connection to the computer works, the radio itself boots with no errors,
> but
> nothing shows on the panadapter.
>
> See video attached for any help.
> https://youtu.be/Md3ILmdJLDI
>
> Thanks in advance for any help.
>
> Andy (NB8F)
>
>
>
> -
> NB8F - Andy
> Elecraft K3S - #11282 / KX2 - #1791
> Elecraft owner since June 2017
> Ham since March 2015
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Gary Hawkins


I'll try a completely different tack.

If you like the outdoors, how about Summits-on-the-Air (SOTA)? You'll get to 
spend time planning your SOTA adventure, and taking the hike to the peak.  
He'll get to see you operating and hopefully that will encourage him to be 
interested as well. He can help you to build things like portable antennas and 
battery packs. If you get really adventurous one day adventures can turn into 
weekend camping.

My daughter is 3 years old. We have started her on short hikes and I hopeful 
next year she can do her first small peaks. Not sure how I'll keep her 
entertained on the summit but I'll cross that bridge when I get there.

73's Gary K6YOA

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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread ab2tc

Hi all,

Interesting OT thread. It's getting closed to the limit for OT threads, but
I'll risk another entry anyway. It reverberates with me since I just became
a grandfather. Of course I have another 10 years or so before I have to
really start thinking about this.

On G3RJV's book. It is very interesting, but dates back to 1972! All
semiconductors are germanium and Eurocentric to boot. I used the glass
encapsulated OC45 and OC71 as a teenager way back in Norway. I don't think
these were ever sold in NA. OC45 is an RF transistor (of sorts) and in his
final design it's used as both an RF amplifier and first stage AF amplifier.
He doesn't mention this in the text. The design is strikingly similar to the
one in my first spring terminal based trainer kit, probably around
1965-1970. On the OC transistors, they were glass encapsulated with a black
lacquer coating. One had to be very careful not to injure this coating as
they would become sensitive to light if you did. With lamp lighting you'd
get hum. Don't ask how I know this.

On the OPs question, for a 10 year old I think the "trainer" style kits
would be more appropriate as they come with all materials needed. The
posting prior to Don's had what appears to be a good suggestion, but Amazon
had only one left in stock last time I checked.

AB2TC - Knut


Don Wilhelm wrote
> Ted,
> 
> G3RJV - the Reverend George Dobbs has spent a lot of time and energy 
> creating easy to build radios.  He has also done a lot with children to 
> help their interest in building and radio.
> His name is familiar to most QRPers and until last year has presented at 
> FDIM - always quite interesting.
> 
> He has publish many articles and books, but one that may be of interest 
> is available online at 
> http://www.mds975.co.uk/Content/george_dobbs_trf_radio.html.
> 
> Inexpensive materials and easy to build are two things that George 
> always adhered to.
> 
> 73,
> Don W3FPR
> 





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[Elecraft] Antipode prop revisted

2017-10-15 Thread cx7tt

Further research shows articulate article (sorry, could'nt resist) by
renown author K9LA:

http://k9la.us/Propagation_to_the_Antipode_Revisited.pdf

Enjoy y 73

Tom
HP1XT
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Re: [Elecraft] KX2 Batt

2017-10-15 Thread Don Wilhelm


Scott,

The stock battery pack is sealed as one unit, not 3 individual cells.
Perhaps you are talking about a possible alternative battery supply and 
not the one sold by Elecraft.


73,
Don W3FPR

On 10/15/2017 3:59 PM, K9MA wrote:
One possibility would be to get a 3-cell battery holder, and charge the 
cells independently.  A charger which charges several cells 
simultaneously, but independently, would assure balance.  Unless you use 
smaller cells, however, the will have to be external.

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Re: [Elecraft] 630 meter band approvals ...

2017-10-15 Thread Edward R Cole


New website (under construction): http://www.kl7uw.com/630m.htm


73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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[Elecraft] Lat/Long map

2017-10-15 Thread cx7tt

Hi Bill,

Thanks for putting out the lat/long link. The best part for me was the
antipode link found on that web site. So much easier to figure out the
A/P rather than playing with DXAtlas to find.

As CX7TT, my A/P was in the Yellow Sea...draw line from Seoul to
Shanghai and that's where it was...explains why at greyline I could
always hear the JAs

Now, as HP1XT, A/P is direct line from VK9 Xmas to VK9 Coco K and
slightly north...explains why YB is very easy from herejust SW of
Jakarta...

We read about greyline/SS/SR enhancement prop but would like to see
article on antipode propagation.

73
Tom
HP1XT
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[Elecraft] Software Additions

2017-10-15 Thread John Hendricks

As I grow older with hearing loss I have become interested in the multitude
of digital modes that are available because they don't rely on good
hearing.  A bandwidth of up to 5 kHz is used by the popular WSJT-X
software.  Could the Elecraft radio software be changed so that K3/KSs
radios (equipped with the proper AM or FM filter) have a "WDATA" mode that
allows receiving and transmitting this 5 kHz bandwidth?  It would also be
nice too do the same thing for the KX3/KX2 but it might not be possible
after looking at the radio design.

John K7JLT
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Re: [Elecraft] KX2 Batt

2017-10-15 Thread Don Wilhelm


Tony,

Lithium Ion is a different chemistry than li-po.
I would choose to be safe rather than sorry and buy both the battery and 
charger.
If you are going to be operating portable over a long weekend, consider 
a 2nd battery.


Yes, it can be powered from an external power source through the 2.1mm 
coaxial jack.  For best results, the power supply should have a voltage 
of 13.8 volts or more - up to 15 volts is OK.

BTW - the internal battery can plug into that jack as well.

73,
Don W3FPR

On 10/15/2017 3:17 PM, Tony G6GLP wrote:

Hi Don,
I am sure they have done it correctly but I have a number of different 
charges for li-po and other type batts so was just thinking of either 
not getting the charger or just providing another batt as it only 
seems to connect via 2wire connection for powering the rig.


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Re: [Elecraft] KX2 Batt

2017-10-15 Thread K9MA

One possibility would be to get a 3-cell battery holder, and charge the 
cells independently.  A charger which charges several cells 
simultaneously, but independently, would assure balance.  Unless you use 
smaller cells, however, the will have to be external.


73,
Scott K9MA
On 10/15/2017 14:17, Tony G6GLP wrote:

Hi Don,
I am sure they have done it correctly but I have a number of different 
charges for li-po and other type batts so was just thinking of either 
not getting the charger or just providing another batt as it only 
seems to connect via 2wire connection for powering the rig.


73 de g6glp


On 15/10/2017 20:04, Don Wilhelm wrote:

Tony,

The battery must be removed for charging.
The charger and battery are from the same manufacturer and I figure 
they have "done it right" whether that be a balancing circuit in the 
battery pack or some device in the charger.


73,
Don W3FPR

On 10/15/2017 2:36 PM, Tony G6GLP wrote:

Hi All,
Decision made  now and I am going for the KX2 but now I have a 
question about the Batt Li-ion. The charger looks like it charges 
down the power lead and I am wondering how the balancing is done. 
Does the pack have its own balancing circuit or what.




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--
Scott  K9MA

k...@sdellington.us

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[Elecraft] P3 not showing anything

2017-10-15 Thread NB8F

Today I went about upgrading my K3S with the KBPF3 board and a 6khz filter. 
I moved all my filters down one slot and put the 6khz filter in the first
slot. I installed the KBPF3 board, turned it on in the config etc.

I then went to the K3 utility and configured my filters, all seemed to go
well.

I turned the radio on after connecting all the cables and the pan adapter
does not show any signals. It is getting frequency information and changes
as I move the dial.

I have the cable connected into IF OUT on the radio and IF IN on the P3, and
I have tried both of the serial cables that came with the radio.

Connection to the computer works, the radio itself boots with no errors, but
nothing shows on the panadapter.  

See video attached for any help.
https://youtu.be/Md3ILmdJLDI

Thanks in advance for any help.

Andy (NB8F)



-
NB8F - Andy
Elecraft K3S - #11282 / KX2 - #1791
Elecraft owner since June 2017
Ham since March 2015
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Re: [Elecraft] KX2 Batt

2017-10-15 Thread Tony G6GLP


Hi Don,
I am sure they have done it correctly but I have a number of different 
charges for li-po and other type batts so was just thinking of either 
not getting the charger or just providing another batt as it only seems 
to connect via 2wire connection for powering the rig.


73 de g6glp


On 15/10/2017 20:04, Don Wilhelm wrote:

Tony,

The battery must be removed for charging.
The charger and battery are from the same manufacturer and I figure 
they have "done it right" whether that be a balancing circuit in the 
battery pack or some device in the charger.


73,
Don W3FPR

On 10/15/2017 2:36 PM, Tony G6GLP wrote:

Hi All,
Decision made  now and I am going for the KX2 but now I have a 
question about the Batt Li-ion. The charger looks like it charges 
down the power lead and I am wondering how the balancing is done. 
Does the pack have its own balancing circuit or what.




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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Don Wilhelm


Ted,

G3RJV - the Reverend George Dobbs has spent a lot of time and energy 
creating easy to build radios.  He has also done a lot with children to 
help their interest in building and radio.
His name is familiar to most QRPers and until last year has presented at 
FDIM - always quite interesting.


He has publish many articles and books, but one that may be of interest 
is available online at 
http://www.mds975.co.uk/Content/george_dobbs_trf_radio.html.


Inexpensive materials and easy to build are two things that George 
always adhered to.


73,
Don W3FPR

On 10/15/2017 11:46 AM, Dauer, Edward wrote:

Looking for suggestion about books or kits or whatever else that might interest 
a ten year old to electronics and to amateur radio.  He is adept at mechanical 
things and pretty bright.  What else could he be?  He’s my grandson.

But his understanding of electronics is well insulated by contemporary smart 
phones and games and the like, about the innards of which one can learn nothing 
in the old way – the way we did it, by taking the family radio apart and then 
having to learn how to put it back together.


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Re: [Elecraft] KX2 Batt

2017-10-15 Thread Don Wilhelm


Tony,

The battery must be removed for charging.
The charger and battery are from the same manufacturer and I figure they 
have "done it right" whether that be a balancing circuit in the battery 
pack or some device in the charger.


73,
Don W3FPR

On 10/15/2017 2:36 PM, Tony G6GLP wrote:

Hi All,
Decision made  now and I am going for the KX2 but now I have a question 
about the Batt Li-ion. The charger looks like it charges down the power 
lead and I am wondering how the balancing is done. Does the pack have 
its own balancing circuit or what.

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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Bob Anderson

Companies like Elenco still make the 150-in-1 and 300-in-1 Electronic
Project Labs that let you easily walk through theory and application with
quick results yet still allow you to do the builds and easily modify
circuits. Safely. They have the "Snap Circuits" line of kits for things
like building an FM radio receiver. These kits are very simple to build but
show a result quickly. The labs are better for minds that are ready to
experiment and tinker, but the targeted kits may be a better introduction.
There are also a lot of Arduino kits with different sensors, inputs,
outputs, lights, switches, etc. that can make some fun projects quickly if
there is any interest in programming.

https://www.amazon.com/Elenco-300-in-One-Electronic-Project-Lab/dp/B5K86O
https://www.adafruit.com/product/170

Bob
N8ZVX


On Sun, Oct 15, 2017 at 12:44 PM, Mike Markowski 
wrote:

> Ted,
>
> When my now-21 yr old son was about 14, he had by then earned his
> Technician and learned CW.  At that point he had an iPod and put an iambic
> keyer app on it.  He thought it would be fun to use as a key but I pointed
> out that that would be modulated CW and not actual CW.  Using his interest
> as an opportunity to teach some electronics, here's what we did:
>
> 1. Bought some equal valued resistors.  Then we could use series and
> parallel to get values needed.  A nice simple lesson there explaining why
> that is.
>
> 2. Bought a quad op amp chip.  This is harder to fully teach a kid, of
> course, but we wired up one as an inverting amplifier showing how the
> feedback resistor divided by the input resistor determines the scale factor.
>
> 3. We wired up another as a comparator using a potentiometer.
>
> 4. Used an NPN as a switch to key the rig.
>
> In the end, ipod (now, smart phone!) audio goes to the amplifier.
> Amp out goes to comparator whose output is triggered by cw audio in.
> Comparator output goes to NPN switch to key rig.
>
> And then you have the world's most high tech key.  :-)  We topped it off
> by having him solder together the circuit on perf board and mount it in, of
> course, an Altoids tin.  Maybe a mini project along these lines would work,
> tailored to suit his interests and age.
>
> Good luck!
> Mike ab3ap
>
>
>
>
> On 10/15/2017 11:46 AM, Dauer, Edward wrote:
>
>> Looking for suggestion about books or kits or whatever else that might
>> interest a ten year old to electronics and to amateur radio.  He is adept
>> at mechanical things and pretty bright.  What else could he be?  He’s my
>> grandson.
>>
>> But his understanding of electronics is well insulated by contemporary
>> smart phones and games and the like, about the innards of which one can
>> learn nothing in the old way – the way we did it, by taking the family
>> radio apart and then having to learn how to put it back together.
>>
>> Any other grandpas or grandmas out there have experiences to share?
>>
>> Thanks in advance,
>>
>> Ted, KN1CBR
>>
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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Lynn W. Taylor, WB6UUT


Some of us "homebrew" in software.

Then there is the whole "maker" community that should be a nice fit.

73 -- Lynn

On 10/15/2017 9:20 AM, GRANT YOUNGMAN wrote:

That’s a good question.  Most kids’ grandpas, even it they’re hams, don’t have 
a workbench filled with boat anchors torn down in some state of repair or 
restoration, or aren’t into home brew of much more than getting a relay to 
work, wiring a connector, or something similar.  They may not even know another 
ham that does any of that aside from screwing ‘mysterious' black box radios 
together with preassembled cables, which is too bad in itself, but not the same 
topic.

Maybe something like this thing 
https://www.amazon.com/Elenco-Electronic-Playground-Learning-Center/dp/B0035XSZDI/ref=pd_sim_14_1?_encoding=UTF8_rd_i=B0035XSZDI_rd_r=NGPKH7KZXG9W97CMB6TD_rd_w=VORMc_rd_wg=Gq7yR=1=NGPKH7KZXG9W97CMB6TD
 


Another option is a line of products called Snap Circuits (google it), which 
are pretty slick.  My 9 year old grand daughter has a couple of sets, and has 
done some interesting stuff with them.  Plus, they’re kind of fun … :-)

Grant NQ5T
K3 #2091, KX3 #8342


On Oct 15, 2017, at 11:46 AM, Dauer, Edward  wrote:

Looking for suggestion about books or kits or whatever else that might interest 
a ten year old to electronics and to amateur radio.  He is adept at mechanical 
things and pretty bright.  What else could he be?  He’s my grandson.

But his understanding of electronics is well insulated by contemporary smart 
phones and games and the like, about the innards of which one can learn nothing 
in the old way – the way we did it, by taking the family radio apart and then 
having to learn how to put it back together.

Any other grandpas or grandmas out there have experiences to share?

Thanks in advance,






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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Ron D'Eau Claire

Your foil antenna sounds a great deal like Marconi's first antenna used on the 
family estate to prove radio waves were not just "line-of-sight". 

https://readtiger.com/img/wkp/en/Marconi%27s_first_radio_transmitter.jpg

73, Ron AC7AC

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Nicklas Johnson
Sent: Sunday, October 15, 2017 10:09 AM
To: Dauer, Edward
Cc: Elecraft Reflector Reflector
Subject: Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur 
Radio and Electronics

I second this.  My first foray into electronics in general and radio in 
particular came from the old Radio Shack / Science Fair "160 in one" and
"200 in one" project kits.  Prepare for a spaghetti-wire mess of jumpers 
between spring terminals, but it was a really great means for me to begin to 
understand, and it was a great way for someone of that age (I think I started 
toying with them around the age of 9) to experiment.

My favorite kit build, of course, was the AM Radio transmitter, which led to a 
lot of experimentation with different antennas to see how far around our 
neighborhood I could pick up my signal, trying to find "improvements"
to the circuit, means of using speaker and line-level inputs instead of the 
microphone input so I could play music more easily, etc. etc.  It turned out 
that, for reasons I didn't understand at the time, a 6-foot-long sheet of 
aluminum foil makes a pretty good broadcast band antenna for a toy kit, much 
better than just a wire :-)

Eventually this led to a postal mail conversation with my uncle, who is a Ham, 
who in turn sent me a copy of "Tune in the World with Ham Radio" to help answer 
some questions I had about antennas.  And then, upon doing the calculations, I 
was dismayed to learn that a proper vertical antenna for the frequency I was 
trying to use would need to be over 150 feet high, well beyond the allowed 
length for a Part 15 transmitter.  Someone should have told me about loading 
coils... I bet I could have gotten a little more range out of that aluminum 
foil!

   Nick



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[Elecraft] KX2 Batt

2017-10-15 Thread Tony G6GLP


Hi All,
Decision made  now and I am going for the KX2 but now I have a question 
about the Batt Li-ion. The charger looks like it charges down the power 
lead and I am wondering how the balancing is done. Does the pack have 
its own balancing circuit or what.


73 de Tony G6GLP

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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Nicklas Johnson

I second this.  My first foray into electronics in general and radio in
particular came from the old Radio Shack / Science Fair "160 in one" and
"200 in one" project kits.  Prepare for a spaghetti-wire mess of jumpers
between spring terminals, but it was a really great means for me to begin
to understand, and it was a great way for someone of that age (I think I
started toying with them around the age of 9) to experiment.

My favorite kit build, of course, was the AM Radio transmitter, which led
to a lot of experimentation with different antennas to see how far around
our neighborhood I could pick up my signal, trying to find "improvements"
to the circuit, means of using speaker and line-level inputs instead of the
microphone input so I could play music more easily, etc. etc.  It turned
out that, for reasons I didn't understand at the time, a 6-foot-long sheet
of aluminum foil makes a pretty good broadcast band antenna for a toy kit,
much better than just a wire :-)

Eventually this led to a postal mail conversation with my uncle, who is a
Ham, who in turn sent me a copy of "Tune in the World with Ham Radio" to
help answer some questions I had about antennas.  And then, upon doing the
calculations, I was dismayed to learn that a proper vertical antenna for
the frequency I was trying to use would need to be over 150 feet high, well
beyond the allowed length for a Part 15 transmitter.  Someone should have
told me about loading coils... I bet I could have gotten a little more
range out of that aluminum foil!

   Nick

On 15 October 2017 at 09:20, GRANT YOUNGMAN  wrote:

> That’s a good question.  Most kids’ grandpas, even it they’re hams, don’t
> have a workbench filled with boat anchors torn down in some state of repair
> or restoration, or aren’t into home brew of much more than getting a relay
> to work, wiring a connector, or something similar.  They may not even know
> another ham that does any of that aside from screwing ‘mysterious' black
> box radios together with preassembled cables, which is too bad in itself,
> but not the same topic.
>
> Maybe something like this thing https://www.amazon.com/Elenco-
> Electronic-Playground-Learning-Center/dp/B0035XSZDI/
> ref=pd_sim_14_1?_encoding=UTF8_rd_i=B0035XSZDI_rd_
> r=NGPKH7KZXG9W97CMB6TD_rd_w=VORMc_rd_wg=Gq7yR=1&
> refRID=NGPKH7KZXG9W97CMB6TD  Elenco-Electronic-Playground-Learning-Center/dp/B0035XSZDI/
> ref=pd_sim_14_1?_encoding=UTF8_rd_i=B0035XSZDI_rd_
> r=NGPKH7KZXG9W97CMB6TD_rd_w=VORMc_rd_wg=Gq7yR=1&
> refRID=NGPKH7KZXG9W97CMB6TD>
>
> Another option is a line of products called Snap Circuits (google it),
> which are pretty slick.  My 9 year old grand daughter has a couple of sets,
> and has done some interesting stuff with them.  Plus, they’re kind of fun …
> :-)
>
> Grant NQ5T
> K3 #2091, KX3 #8342
>
> > On Oct 15, 2017, at 11:46 AM, Dauer, Edward  wrote:
> >
> > Looking for suggestion about books or kits or whatever else that might
> interest a ten year old to electronics and to amateur radio.  He is adept
> at mechanical things and pretty bright.  What else could he be?  He’s my
> grandson.
> >
> > But his understanding of electronics is well insulated by contemporary
> smart phones and games and the like, about the innards of which one can
> learn nothing in the old way – the way we did it, by taking the family
> radio apart and then having to learn how to put it back together.
> >
> > Any other grandpas or grandmas out there have experiences to share?
> >
> > Thanks in advance,
> >
>
>
>
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Message delivered to n...@n6ol.us
>

-- 
*N6OL*
Saying something doesn't make it true.  Belief in something doesn't make it
real. And if you have to lie to support a position, that position is not
worth supporting.
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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Rod Hardman

Edward
I’d suggest anything under the Snap Circuits brand
https://www.amazon.com/gp/aw/d/B0002AHQWS/ref=mp_s_a_1_12?ie=UTF8=1508086022=8-12=AC_SX236_SY340_QL65=snap+circuits

The kits are easy to manipulate, marked clearly (with proper symbols) and use 
real components. 

My kids love them

/Rod
VA3ON

On Oct 15, 2017, at 11:46, Dauer, Edward  wrote:

Looking for suggestion about books or kits or whatever else that might interest 
a ten year old to electronics and to amateur radio.  He is adept at mechanical 
things and pretty bright.  What else could he be?  He’s my grandson.

But his understanding of electronics is well insulated by contemporary smart 
phones and games and the like, about the innards of which one can learn nothing 
in the old way – the way we did it, by taking the family radio apart and then 
having to learn how to put it back together.

Any other grandpas or grandmas out there have experiences to share?

Thanks in advance,

Ted, KN1CBR

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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Mike Markowski


Ted,

When my now-21 yr old son was about 14, he had by then earned his 
Technician and learned CW.  At that point he had an iPod and put an 
iambic keyer app on it.  He thought it would be fun to use as a key but 
I pointed out that that would be modulated CW and not actual CW.  Using 
his interest as an opportunity to teach some electronics, here's what we 
did:


1. Bought some equal valued resistors.  Then we could use series and 
parallel to get values needed.  A nice simple lesson there explaining 
why that is.


2. Bought a quad op amp chip.  This is harder to fully teach a kid, of 
course, but we wired up one as an inverting amplifier showing how the 
feedback resistor divided by the input resistor determines the scale factor.


3. We wired up another as a comparator using a potentiometer.

4. Used an NPN as a switch to key the rig.

In the end, ipod (now, smart phone!) audio goes to the amplifier.
Amp out goes to comparator whose output is triggered by cw audio in.
Comparator output goes to NPN switch to key rig.

And then you have the world's most high tech key.  :-)  We topped it off 
by having him solder together the circuit on perf board and mount it in, 
of course, an Altoids tin.  Maybe a mini project along these lines would 
work, tailored to suit his interests and age.


Good luck!
Mike ab3ap



On 10/15/2017 11:46 AM, Dauer, Edward wrote:

Looking for suggestion about books or kits or whatever else that might interest 
a ten year old to electronics and to amateur radio.  He is adept at mechanical 
things and pretty bright.  What else could he be?  He’s my grandson.

But his understanding of electronics is well insulated by contemporary smart 
phones and games and the like, about the innards of which one can learn nothing 
in the old way – the way we did it, by taking the family radio apart and then 
having to learn how to put it back together.

Any other grandpas or grandmas out there have experiences to share?

Thanks in advance,

Ted, KN1CBR

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Re: [Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread GRANT YOUNGMAN

That’s a good question.  Most kids’ grandpas, even it they’re hams, don’t have 
a workbench filled with boat anchors torn down in some state of repair or 
restoration, or aren’t into home brew of much more than getting a relay to 
work, wiring a connector, or something similar.  They may not even know another 
ham that does any of that aside from screwing ‘mysterious' black box radios 
together with preassembled cables, which is too bad in itself, but not the same 
topic.

Maybe something like this thing 
https://www.amazon.com/Elenco-Electronic-Playground-Learning-Center/dp/B0035XSZDI/ref=pd_sim_14_1?_encoding=UTF8_rd_i=B0035XSZDI_rd_r=NGPKH7KZXG9W97CMB6TD_rd_w=VORMc_rd_wg=Gq7yR=1=NGPKH7KZXG9W97CMB6TD

Another option is a line of products called Snap Circuits (google it), which 
are pretty slick.  My 9 year old grand daughter has a couple of sets, and has 
done some interesting stuff with them.  Plus, they’re kind of fun … :-)

Grant NQ5T
K3 #2091, KX3 #8342

> On Oct 15, 2017, at 11:46 AM, Dauer, Edward  wrote:
> 
> Looking for suggestion about books or kits or whatever else that might 
> interest a ten year old to electronics and to amateur radio.  He is adept at 
> mechanical things and pretty bright.  What else could he be?  He’s my 
> grandson.
> 
> But his understanding of electronics is well insulated by contemporary smart 
> phones and games and the like, about the innards of which one can learn 
> nothing in the old way – the way we did it, by taking the family radio apart 
> and then having to learn how to put it back together.
> 
> Any other grandpas or grandmas out there have experiences to share?
> 
> Thanks in advance,
> 

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[Elecraft] Suggestions for Introducing a 10-year-old to Amateur Radio and Electronics

2017-10-15 Thread Dauer, Edward

Looking for suggestion about books or kits or whatever else that might interest 
a ten year old to electronics and to amateur radio.  He is adept at mechanical 
things and pretty bright.  What else could he be?  He’s my grandson.

But his understanding of electronics is well insulated by contemporary smart 
phones and games and the like, about the innards of which one can learn nothing 
in the old way – the way we did it, by taking the family radio apart and then 
having to learn how to put it back together.

Any other grandpas or grandmas out there have experiences to share?

Thanks in advance,

Ted, KN1CBR

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