Re: [Elecraft] Kpa 500 problem when auxiliary cable connected ...

[Jack Brindle]

Oops. That should be the RADIO setting in the KPA500…

- Jack, W6FB

> On Aug 12, 2016, at 8:14 PM, Jack Brindle  wrote:
> 
> Make sure the RADIO setting in the K3 didn’t get changed away from K3. More 
> specifically, it sounds like it was changed to ANALOG without having the 
> proper pin connected to the Icom’s analog band data signal.
> 
> If that isn’t the problem, then I’ll have more questions to see how we might 
> fix the issue.
> 
> 73!
> 
> - Jack Brindle, W6FB
> Elecraft Engineering
> 
> 
>> On Aug 12, 2016, at 7:23 PM, Jorge Mejia P  wrote:
>> 
>> 
>> 
>> Para: Elecraft@mailman.qth.net
>> Asunto: Kpa 500 problem when auxiliary cable connected ... 
>> 
>> I had been successfully using my KPA500 with an Icom and a  K3 , 
>> alternatively with the use of the Key Line interrupter and a separate key 
>> line. 
>> Suddenly I cannot change bands on theKPA500  or go on Tx, even though the  
>> auxiliary cable  is well seated and the Key line interrupter is well screwed 
>> to the K3 . The kpa500 works fine with the K3 alone, or when I disconnect 
>> the auxiliary cable from the K3 ,then I can change bands and use it with the 
>> Icom as long as I turn it off and the on again .
>> 
>> This happens even when the K3  is off . I have also tried disconnecting the 
>> k3s serial cable to the computer and even from the PS ,  but no luck. 
>> 
>> Wonder if any one has experienced such a problem.
>> 
>> Any ideas?
>> 
>> Thank you
>> Jorge HK4CZE
>> 
>> 
>> __
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> 
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Re: [Elecraft] KX3 Meter Display Question

[Don Wilhelm]

Jim,

No, the display will normally go back to displaying the RF level.

After setting the audio level to the KX3 (K3 or K3S), that level is not 
going to change unless you make some changes to the computer audio 
level.  If you do that, just change the MIC GAIN knob a little bit and 
the display will revert to the ALC/COMP display.


73,
Don W3FPR


On 8/12/2016 10:02 PM, James Bennett wrote:

OK - I’m officially stumped. How does one keep the meter display showing ALC 
continuously instead of RF output? When I operate the digital modes, in DATA-A, 
I want to have the ALC displayed so that I can keep an eye on making sure that 
5th bar is just flickering. There is a difference in setting the Mic gain 
between JT65 and JT9, so this is something I like to monitor. However, after 
setting the MIC gain to the proper ALC level the display insists on jumping 
back to RF output. Is there a way to stop this from happening?



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Re: [Elecraft] Kpa 500 problem when auxiliary cable connected ...

[Jack Brindle]

Make sure the RADIO setting in the K3 didn’t get changed away from K3. More 
specifically, it sounds like it was changed to ANALOG without having the proper 
pin connected to the Icom’s analog band data signal.

If that isn’t the problem, then I’ll have more questions to see how we might 
fix the issue.

73!

- Jack Brindle, W6FB
Elecraft Engineering


> On Aug 12, 2016, at 7:23 PM, Jorge Mejia P  wrote:
> 
> 
> 
> Para: Elecraft@mailman.qth.net
> Asunto: Kpa 500 problem when auxiliary cable connected ... 
> 
> I had been successfully using my KPA500 with an Icom and a  K3 , 
> alternatively with the use of the Key Line interrupter and a separate key 
> line. 
> Suddenly I cannot change bands on theKPA500  or go on Tx, even though the  
> auxiliary cable  is well seated and the Key line interrupter is well screwed 
> to the K3 . The kpa500 works fine with the K3 alone, or when I disconnect the 
> auxiliary cable from the K3 ,then I can change bands and use it with the Icom 
> as long as I turn it off and the on again .
> 
> This happens even when the K3  is off . I have also tried disconnecting the 
> k3s serial cable to the computer and even from the PS ,  but no luck. 
> 
> Wonder if any one has experienced such a problem.
> 
> Any ideas?
> 
> Thank you
> Jorge HK4CZE
> 
> 
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Re: [Elecraft] K160RX

[Mark E. Musick]

Frank,
I have an unassembled K160RX complete still in the K160RX Elecraft bag.
I'll have to look for it. 
Contact me off list and we can negotiate price and delivery.

Mark Musick, WB9CIF

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
kg9hfr...@gmail.com
Sent: Saturday, August 13, 2016 1:46 AM
To: elecraft 
Subject: [Elecraft] K160RX

Anyone have a K160RX   they
want to get rid of?  KG9H
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[Elecraft] Kpa 500 problem when auxiliary cable connected ...

[Jorge Mejia P]

Para: Elecraft@mailman.qth.net
Asunto: Kpa 500 problem when auxiliary cable connected ... 

I had been successfully using my KPA500 with an Icom and a  K3 , alternatively 
with the use of the Key Line interrupter and a separate key line. 
Suddenly I cannot change bands on theKPA500  or go on Tx, even though the  
auxiliary cable  is well seated and the Key line interrupter is well screwed to 
the K3 . The kpa500 works fine with the K3 alone, or when I disconnect the 
auxiliary cable from the K3 ,then I can change bands and use it with the Icom 
as long as I turn it off and the on again .

This happens even when the K3  is off . I have also tried disconnecting the k3s 
serial cable to the computer and even from the PS ,  but no luck. 

Wonder if any one has experienced such a problem.

Any ideas?

Thank you
Jorge HK4CZE


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Re: [Elecraft] K160RX

[Don Wilhelm]

Frank,

Don't forget that in addition to the K160RX board, you will need the 
capacitors for the 80/160m bandpass filter, the standoff, the header (it 
is taller than normal) and the BNC jack.


There is more to the K160RX kit than just the board.  The Elecraft kit 
has all the components required.


73,
Don W3FPR

On 8/12/2016 9:46 PM, kg9hfr...@gmail.com wrote:

Anyone have a K160RX   they 
want to get rid of?  KG9H



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[Elecraft] KX3 Meter Display Question

[James Bennett]

OK - I’m officially stumped. How does one keep the meter display showing ALC 
continuously instead of RF output? When I operate the digital modes, in DATA-A, 
I want to have the ALC displayed so that I can keep an eye on making sure that 
5th bar is just flickering. There is a difference in setting the Mic gain 
between JT65 and JT9, so this is something I like to monitor. However, after 
setting the MIC gain to the proper ALC level the display insists on jumping 
back to RF output. Is there a way to stop this from happening?

Tnx & 73, Jim / W6JHB
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[Elecraft] K160RX

[kg9hfr...@gmail.com]

Anyone have a K160RX   they 
want to get rid of?  KG9H
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Re: [Elecraft] FS: KXPA100 **SOLD**

[n1ix]

KXPA100 has been sold.
Thanks 
Dave N1IX

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
n...@n1ix.com
Sent: Friday, August 12, 2016 5:23 PM
To: 'Elecraft Reflector' 
Subject: [Elecraft] FS: KXPA100

 

KXPA100 with antenna tuner. Excellent condition, non-smoker. Comes with
cable for connection to a KX3. $875 shipped. Paypal accepted.

 

Dave N1IX

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[Elecraft] KPod Programming

[Dauer, Edward]

Just learned that my KPod is being shipped today, for arrival late next week.  
Has anyone officially or unofficially been gathering up suggested programming 
functions and associated macros that the K3 community thinks of greatest 
interest or use?

Ted, KN1CBR

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Re: [Elecraft] Suggested antennas for the KX-2 for portable ops

[Don Wilhelm]

Jack,

A part of the answer to what constitutes a "good portable antenna" is 
going to depend on the supports available.  BTW, this information 
pertains to any portable antenna choice, not just the KX2.  It is all 
about what you are willing to 'tote' to your operating position and what 
'sky-hooks' are available.


If there are 'natural' supports available, and your KX2 has the internal 
tuner, the possibilities are large.  Bruce Prior (one of the KX2 field 
testers who does SOTA) has found that a 58 foot radiator thrown into a 
tree and a 13 foot counterpoise laid along the ground is quite effective 
- used with a BNC to binding post adapter.


End Fed Half Wave antennas can be effective, but some matching sections 
need to have some length of coax attached to act like a short counterpoise.


If you are not backpacking, you can use a telescoping fiberglass pole 
for a support for those antennas.


You will likely find a lot of specialized antenna systems that utilize 
loaded antenna elements - like the Buddipole system that can be erected 
in a variety of ways.  In general, those are not as efficient as a full 
length wire.


And lastly (for me) are the magnetic loop antennas (like the Alexloop) 
that can be easily set up, but must be tuned to the frequency of 
operation and once tuned, the bandwidth is quite small.


Consider your desired operation and then make whatever compromises are 
suitable for that situation.


73,
Don W3FPR


On 8/12/2016 4:58 PM, Jack Colson wrote:

I am sure that there are many ideas as to good antennas for the KX-2 in 
portable use.  I’d like to hear some!



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Re: [Elecraft] Suggested antennas for the KX-2 for portable ops

[Mel Farrer via Elecraft]

Just on the scene, Look up: Aerial 51.
Mel, K6KBE




  From: Jack Colson 
 To: elecraft@mailman.qth.net 
 Sent: Friday, August 12, 2016 1:58 PM
 Subject: [Elecraft] Suggested antennas for the KX-2 for portable ops
   
I am sure that there are many ideas as to good antennas for the KX-2 in 
portable use.  I’d like to hear some!
73, Jack, W3TMZ
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Re: [Elecraft] Suggested antennas for the KX-2 for portable ops

[Kevin - K4VD]

KX3 portable I use the EF-40/20 from LNR. It would probably work on the KX2
also. ;)

It was real easy to tune for 40 and 20 and has done a great job for me at
Field Day, an NPOTA and out on my back deck. Very forgiving about the setup.

Kevin K4VD

On Fri, Aug 12, 2016 at 4:58 PM, Jack Colson 
wrote:

> I am sure that there are many ideas as to good antennas for the KX-2 in
> portable use.  I’d like to hear some!
> 73, Jack, W3TMZ
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[Elecraft] New KX2 Arrived

[Paul Smith]

The UPS truck delivered my new KX2. I have been reading and playing. This is a 
BLAST!
Thanks
de Paul N0NBD 
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[Elecraft] FS: KXPA100

[n1ix]

 

KXPA100 with antenna tuner. Excellent condition, non-smoker. Comes with
cable for connection to a KX3. $875 shipped. Paypal accepted.

 

Dave N1IX

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[Elecraft] [SOT] N1NK solar array system RFI mitigation

[Jim Spears]

SOT = Semi Off Topic

 

But I suspect this will be of interest to some who either have or are
contemplating installation of a solar array system.  I do own 3 K3
transceivers and 2 P3 panadaptors.

 

I had a 6KW solar energy system installed by Sungevity back in June.  This
system is based on LG solar panels, SolarEdge Central Inverter and SolarEdge
Power Optimizers.  These are the primary components of the system.

Unfortunately I missed the article by Tony Brock-Fisher, K1KP, in April QST
and quickly came to regret this omission as my system started producing
copious amounts of RFI even before installation was complete.  Tony
described his mitigation upgrade to his solar array system which is based on
the same SolarEdge components.

I did review the article at this point and quickly determined that I needed
to either fix the system or remove it if I was to continue daytime ham radio
activities.

Fortunately Sungevity agreed with the first option and we embarked on a
joint effort to implement K1KP's approach.

I met with Tony, a fellow member and president of the Yankee Clipper Contest
Club,  and we reviewed how he went about mitigating his RFI problem on his
similar set of hardware.  He does an excellent job of describing the
shortcomings of the SolarEdge based design as implemented by SunGevity in
the article.  He and Chuck Counselman, W1HIS, did an excellent job of
researching the problem and designing a solution.

I did not feel it necessary to repeat the analysis part of Chuck and Tony's
effort but went directly into the design effort for my system with Tony's
assistance.

My system has two strings of 11 solar panel/power optimizer sets for a total
of 22 sets plus one Central Inverter.  

Once I had obtained all of the line filter and ferrite core hardware, I met
with the local Sungevity field manager and installation team.  I explained
to them what the problem was and how we were going to mitigate it.

The installation team showed up a few days later and spent 2 days
implementing the upgrades to the originally installed system.  There was a
certain amount of learning curve to be climbed and inadvertently introduced
errors to be found and corrected.  

The results are amazing!  

 The initial check was with the Central Inverter off (it must have 240 VAC
from the utility feed to sense utility voltage, frequency and phase to
operate).  This meant that only the solar panels and their associated power
optimizers were active.  

Before implementing the RFI mitigation upgrade, the power optimizers (which
are, in effect, switching mode power supplies) would produce strong signals
at multiples of the switching frequencies during daylight.  This resulted in
numerous large and messy noise spikes across all of the HF ham bands roughly
every 20 KHz.  These spikes were, of course, absent at night.

After implementing the RFI mitigation upgrade, the noise spikes have
disappeared to the point of not being detectable in the ambient noise level
here.  As I noted previously, these results are amazing!

In order to configure and test the Central Inverter with the line filter
module and ferrite cores that we introduced, the installation team
temporarily installed a dummy production meter which connects the Central
Inverter to the utility line through the line filter complex.

Limited system operation with the Central Inverter active  before the RFI
mitigation upgrade did show strong noise spikes at roughly the same
frequency as reported by Tony.  These were spaced roughly every 200 KHz but
were difficult for me to discriminate against the Power Optimizer noise
spikes.

Little time was available to investigate the effects of the line filter
complex on Central Inverter noise spike production after the RFI mitigation
upgrade was complete but the previously obvious Central Inverter
contribution to the noise environment was substantially reduced.

At this point in time, the final step in bringing the system to full
operational status is installation of the production meter by my utility,
National Grid.  This should take place in a few days.  

At this point in time, the solar panels and power optimizers are active
during daylight hours and I am not seeing any of the Power Optimizer
produced noise spikes that were present before the RFI mitigation upgrade.
I am declaring the RFI mitigation upgrade a conditional success.

As far as how I implemented the upgrade, Tony's fine article provides the
bulk of the detail and rationale.  

Here is a brief summary:

1.  For each Solar Panel we wound its output wires through a 2.4" OD ferrite
core and added a new choke wound on a 2.0" ferrite core before connecting to
its Power Optimizer.  Pairs of wires were twisted.

2.  For each Power Optimizer we wound its output wires through a 2.4" OD
ferrite core.

3. The DC loop connecting all Power Optimizers in each string was
reconfigured in accordance with Figure 2 in Tony's article.  Pairs of wires
were twisted and a 2.4" ferrite core was 

[Elecraft] Suggested antennas for the KX-2 for portable ops

[Jack Colson]

I am sure that there are many ideas as to good antennas for the KX-2 in 
portable use.  I’d like to hear some!
73, Jack, W3TMZ
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Re: [Elecraft] Real 2" x 4" Lumber

[Eric Swartz - WA6HHQ, Elecraft]

And with that, let's close this thread. Its a bit too far OT.

Must be a slow HF propagation day! ;-)

73

Eric
Your moderator, really!
/elecraft.com/

On 8/12/2016 11:42 AM, Phil Wheeler wrote:

A fun retrospective, Jim -- except for the corn part!

Phil W7OX

On 8/11/16 10:29 AM, Jim Brown wrote:
Indeed the finished dimension of lumber HAS changed. Renovating the wood 
frame home I owned in Chicago, built around the turn of the century, after 
the Great Chicago Fire, I found REAL 2" x 4" and 2" x 6" lumber.


I also removed at least 100 ft of gas pipe used for lighting. When first 
wired for electricity, wiring was run through those pipes and light fixtures 
replaced the gas lights. Obviously, they were first disconnected from the gas 
line, which was still used for heat. :)


Another thing that's changed is the sweet corn that we can buy in the market 
-- it's now much sweeter with little real corn taste. As long as I've been 
eating it, corn was always hybridized for taste, but it always tasted like 
corn. What we get now is hybridized and genetically engineered stuff that 
resists the chemicals used to kill weeds.  It  looks like corn, but tastes 
like a sugar bowl.  Small farmers used to harvest their own seeds to plant 
next year's crop, and to grow corn that tasted the way they and their 
customers wanted. But when that chemical resistant stuff was invented 
something like 10 years ago, Monsanto, the big seed company that invented it, 
sued those farmers, claiming that some of their patented stuff had 
cross-fertilized those corn plants, and within a few years, that phony corn 
is all we can buy. I used to buy a half dozen ears, steam them, and eat them 
for lunch. I haven't been able to do that for years.


73, Jim K9YC

 On Thu,8/11/2016 9:17 AM, Charlie T, K3ICH wrote:

Bad analogy.  The 2 X 4 inch measurement of a piece of construction lumber
is before planning, or rough cut lumber.  The finished dimension is more
like 3½ X 1½ which hasn't changed.


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Re: [Elecraft] Real 2" x 4" Lumber

[Phil Wheeler]

A fun retrospective, Jim -- except for the corn part!

Phil W7OX

On 8/11/16 10:29 AM, Jim Brown wrote:
Indeed the finished dimension of lumber HAS 
changed. Renovating the wood frame home I owned 
in Chicago, built around the turn of the 
century, after the Great Chicago Fire, I found 
REAL 2" x 4" and 2" x 6" lumber.


I also removed at least 100 ft of gas pipe used 
for lighting. When first wired for electricity, 
wiring was run through those pipes and light 
fixtures replaced the gas lights. Obviously, 
they were first disconnected from the gas line, 
which was still used for heat. :)


Another thing that's changed is the sweet corn 
that we can buy in the market -- it's now much 
sweeter with little real corn taste. As long as 
I've been eating it, corn was always hybridized 
for taste, but it always tasted like corn. What 
we get now is hybridized and genetically 
engineered stuff that resists the chemicals used 
to kill weeds.  It  looks like corn, but tastes 
like a sugar bowl.  Small farmers used to 
harvest their own seeds to plant next year's 
crop, and to grow corn that tasted the way they 
and their customers wanted. But when that 
chemical resistant stuff was invented something 
like 10 years ago, Monsanto, the big seed 
company that invented it, sued those farmers, 
claiming that some of their patented stuff had 
cross-fertilized those corn plants, and within a 
few years, that phony corn is all we can buy. I 
used to buy a half dozen ears, steam them, and 
eat them for lunch. I haven't been able to do 
that for years.


73, Jim K9YC

 On Thu,8/11/2016 9:17 AM, Charlie T, K3ICH wrote:
Bad analogy.  The 2 X 4 inch measurement of a 
piece of construction lumber
is before planning, or rough cut lumber.  The 
finished dimension is more

like 3½ X 1½ which hasn't changed.


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Re: [Elecraft] K3 -TX test not sticky

[Ron D'Eau Claire]

It's hard to get used to "magic buttons", but that's what enough people want
so Elecraft supports it. 

Us "old school" types are used to throwing a switch that does what it's
labeled and expect nothing else to happen. If I change the mode switch from
SSB to CW and then change bands, I expect the mode to still be CW, no matter
what I selected for that band last time I operated there. The same goes for
turning the rig off, then on again. 

But then most of us who stumble over that aren't focused on saving a few
milliseconds in a contest or chasing a DX pileup by having the K3 "remember"
our last setup for that band. 

TX TEST is a particular issue because it's like a MODE. And MODE is sticky.
If you turn the rig off in SSB, when you turn it on again it will still be
in SSB. Even if one selected ALT (on the other end of the MODE switch from
TEST) to reverse sidebands, that will be remembered through a power cycle,
but not TEST on the other end of the same switch. 

So I've learned that when I turn the rig on or I change anything, such as
the band, I check *everything* to make sure I'm transmitting using the right
mode on the right antenna, etc., and confirm the SWR and RF output are good
while thinking "Welcome to the 21st Century" Hi! 

73 Ron AC7AC


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Re: [Elecraft] [OT] NEC wire size requirements

[Eric Swartz - WA6HHQ, Elecraft]

Folks, let's wind down and close this thread. We are at 14 posts on an OT thread 
in a short time, well in excess of our list soft limit. As I noted earlier, 
please keep these OT threads short and sweet.


While we do not prohibit OT topics, please self moderate as the primary focus of 
this list is for Elecraft products and their use etc.  Excessive OT posts as we 
have seen lately, will overload the majority of our readers who are focuses on 
our products and their use etc.


73,
Eric
Moderator
/elecraft.com/


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Re: [Elecraft] [OT] NEC wire size requirements

[Jim Brown]

On Fri,8/12/2016 7:22 AM, Cortland Richmond wrote:
That's the famous power-factor- harmonics-in-the-neutral problem.  Got 
some attention, that did; electrical fire in a high-rise will do that. 


Yes. When I went through EE, power factor was the phase relationship 
between V and I. After harmonics were recognized as a BIG DEAL, the 
definition was expanded to include them.


73, Jim K9YC

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Re: [Elecraft] [OT] NEC wire size requirements

[Cortland Richmond]

On 8/11/2016 14:10, Walter Underwood wrote:

In the late 1980?s, we had some cubicle wiring fires at HP Labs caused by 
computer power supplies. They had to replace


That's the famous power-factor- harmonics-in-the-neutral problem.  Got 
some attention, that did;   electrical fire in a high-rise will do that.


Cortland Richmond

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Re: [Elecraft] KXPA100 Amp Issue

[Bob N3MNT]

It is also possible to accidentally switch if you hold the ATU button to
long.  If you only have one antenna and want to prevent this, connect to the
KXPA100 utility and you can disable ant 2 so it can not be selected by
accident.




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Re: [Elecraft] Common mode chokes - FS RF meter

[w4grj]

FS- I have a RF current meter  MFJ 854 purchased for a project
now available for sale in perfect condition $80 mailed.
Please contact me offline.
Jack
W4GRJ

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of EricJ
Sent: Tuesday, August 09, 2016 5:38 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Common mode chokes

W8JI also describes one and how to calibrate it.

http://w8ji.com/building_a_current_meter.htm

Eric KE6US

On Tue,8/9/2016 1:56 PM, MaverickNH wrote:
>> Just wondering - short of +/- RF Burns and Audible Noice, can one 
>> readily detect/measure Common Mode Current on a coax antenna 
>> feedline?
>

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Re: [Elecraft] Real 2" x 4" Lumber

[WILLIS COOKE via Elecraft]

Even planed lumber has changed.  WW2 era planed 2x4 was 2 3/4 x 1 3/4.  It 
changed sometime in the late 40s.  Renovators should be equipped with a tape 
and measure before buying lumber.

  From: Jim Brown 
 To: elecraft@mailman.qth.net 
 Sent: Thursday, August 11, 2016 12:29 PM
 Subject: [Elecraft] Real 2" x 4" Lumber
   
Indeed the finished dimension of lumber HAS changed. Renovating the wood 
frame home I owned in Chicago, built around the turn of the century, 
after the Great Chicago Fire, I found REAL 2" x 4" and 2" x 6" lumber.

I also removed at least 100 ft of gas pipe used for lighting. When first 
wired for electricity, wiring was run through those pipes and light 
fixtures replaced the gas lights. Obviously, they were first 
disconnected from the gas line, which was still used for heat. :)

Another thing that's changed is the sweet corn that we can buy in the 
market -- it's now much sweeter with little real corn taste. As long as 
I've been eating it, corn was always hybridized for taste, but it always 
tasted like corn. What we get now is hybridized and genetically 
engineered stuff that resists the chemicals used to kill weeds.  It  
looks like corn, but tastes like a sugar bowl.  Small farmers used to 
harvest their own seeds to plant next year's crop, and to grow corn that 
tasted the way they and their customers wanted. But when that chemical 
resistant stuff was invented something like 10 years ago, Monsanto, the 
big seed company that invented it, sued those farmers, claiming that 
some of their patented stuff had cross-fertilized those corn plants, and 
within a few years, that phony corn is all we can buy. I used to buy a 
half dozen ears, steam them, and eat them for lunch. I haven't been able 
to do that for years.

73, Jim K9YC

  On Thu,8/11/2016 9:17 AM, Charlie T, K3ICH wrote:
> Bad analogy.  The 2 X 4 inch measurement of a piece of construction lumber
> is before planning, or rough cut lumber.  The finished dimension is more
> like 3½ X 1½ which hasn't changed.


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[Elecraft] FS: K3s and P3

[Barry N1EU]

I've got a like new K3s that I'm offering with or without a P3:

http://swap.qth.com/search-results.php?keywords=Like+new+Elecraft+K3s+and+P3=titleordesc

Please respond off-list.

Thanks & 73,
Barry N1EU
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Re: [Elecraft] Power has disappeared

[Chris Kimball]

Dear Les,

I don't think it's the same problem as my K3S didn't output any power at the
5 W level of the K3 Utility test (See above). The test was done with and
without the 100 W amplifier, too.

My rig arrived at Elecraft yesterday, 11 Aug, with a predicted turn around
time of 2-3 weeks.

I'll keep all informed as things progress.




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Re: [Elecraft] 100 Ah LiFePo4? was Re: [OT] Zip Wire Misrepresentation?

[Jim Brown]

I bought mine at Bioenne Power. https://www.bioennopower.com/  Not 
cheap. I also have one of their 20Ah batteries for portable use.


73, Jim

On Fri,8/12/2016 1:01 AM, Mark Goldberg wrote:


On Aug 11, 2016 10:12 AM, "Jim Brown" > wrote:


As to resistance -- I use the shortest practical runs of #10 between 
my power source (a big 100Ah LiFePO4 battery)


Ok, I am curious. Where did the 100 Ah LiFePO4 battery come from? I 
may have to replace my Lead Acid Deep Cycles someday. I have two small 
and one 20 Ah LiFePO4 and they are great. I see 100 Ah ones on 
batteryspace.com . Boy they are expensive!


73,

Mark
W7MLG



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[Elecraft] 100 Ah LiFePo4? was Re: [OT] Zip Wire Misrepresentation?

[Mark Goldberg]

On Aug 11, 2016 10:12 AM, "Jim Brown"  wrote:

As to resistance -- I use the shortest practical runs of #10 between my
power source (a big 100Ah LiFePO4 battery)

Ok, I am curious. Where did the 100 Ah LiFePO4 battery come from? I may
have to replace my Lead Acid Deep Cycles someday. I have two small and one
20 Ah LiFePO4 and they are great. I see 100 Ah ones on batteryspace.com.
Boy they are expensive!

73,

Mark
W7MLG
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Re: [Elecraft] K3 -TX test not sticky

[Ian White]

Ed W0YK wrote:
>
>BTW, one could argue for a user-configuration parameter in CONFIG
>to choose between sticky and non-sticky, but I still think that is a 
>waste of Wayne's valuable firmware time for little benefit.
>

If Wayne does decide to visit this area of code, then please remove the
feature that flashes "TX" forever when TX INH has been selected. That is
not needed, and by  flashing all the time, it masks the much more useful
warning that TX TEST has been selected by accident.
 

73 from Ian GM3SEK


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Re: [Elecraft] K3 -TX test not sticky

[Martin]

Yeah.
But then you run into the exact problem, because the TX icon ALWAYS 
flashes when you have TX INHIBIT engaged. You THINK the K3 is in TEST 
MODE, but it isn't. You DONT KNOW if your K3 is in Test Mode or not.
Blinking Icons on a display make me think of something is wrong, in case 
of engaged TX INHIBIT nothing is wrong.


My whish for a future firmware update is to eliminate the blinking of 
the TX led when TX INHIBIT is engaged. It should only blink when the K3 
CAN NOT TX.


Back to 6m.


--

Ohne CW ist es nur CB..

73, Martin DM4iM
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Re: [Elecraft] [OT] Zip Wire Misrepresentation?

[Edward R Cole]

Two more comments:
My station runs on an Astron 50M which I run about 14-foot of #4 
welding wire to the master fuse (30A) and my power distribution 
strips.  I see about 13.7v at the fuse.  My 150w 2m amp gets about 
13.3v under load.


I ran about 35-feet of No.8-4 wire from my ac service to a 60A 
breaker box which I have populated with 40A of breakers.  The nom 
240vac drops less than a volt when I key down my 8877 at 1400w output 
(DC load is 2500w).  I have 15A fuses in the 240v transformer primary 
lines.  The Astron runs at 120vac from the same breaker box.


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

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Re: [Elecraft] [OT] Zip Wire Misrepresentation?

[Edward R Cole]

I have the resistance chart for various wire size but find that the 
voltage drop is usually more than ohms law predicts so I go up one 
size just for insurance.


I included 4-foot No.10 Red/Black zip wire (from Powerwerx) with each 
of my 2M80 amplifiers which typically draw 15 amps key-down CW at 80w 
RF output.  Ohms law predicts .00098*2*4*15 = 0.12 volt drop, but 
generally saw about 0.3v drop (but I had another 6-foot of No. 10 
from the PS to workshop power strip).


I'm wiring my new truck with No.8 awg from battery to distribution 
strip in back seat of the crew cab.  Guessing the run will be at 
least 16-foot.  Theory says .00063*2*16*30 = 0.6 volt drop at 
30A.  Battery runs at 14.2 with engine running so that should get me 
13.6v.  Engine off 13.8v will net 13.2 volts which will lower 
amplifier gain a little.  Largest amp draws 25A for 160w output on 
2m.  I have other equipment connected but only one will be in use at any time.


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

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