Re: [Elecraft] K1-2-Band-Module for sale on eBay...

2018-01-17 Thread K9FD 
Your wrong,  priority mail packages have insurance,  the same flat rate 
price to

Hawaii or any place in the USA.
Plus if you wish insurance you just ask for it and you pay, I pay it all 
the time if

I want extra coverage.
Who in the world told you you cant insure a package in the USA ??
Hawaii and Alaska are USA,  not foreign.
I find many people have no clue that a flat rate priority box is the 
same price for

any weight to any place in the US,  yea Hawaii and Alaska is the US.
Out of the US and CONUS are two different things.


I occasionally sell on eBay and I have one simple reason for Conus only.
Packages sent out of the US cannot be insured, at least through USPS, so if
they are lost or damaged you have no recourse.
Maybe that’s not true of private shippers I don’t know.
As far as PayPal protection they almost always side the buyer, not the
seller. I don’t believe they offer any help if your package is lost or
seriously damaged, in fact it’s usually the  opposite, if a buyer gets
something damaged then you as the seller are forced to refund all the
money. So, if it is uninsured because you can’t get insurance if it’s
shipped out of the US, your out the item and have to pay the buyer back.
73,
Tom, k2bew


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Re: [Elecraft] K1-2-Band-Module for sale on eBay...

2018-01-17 Thread Don Wilhelm 

Tom,

You might want to change your designation from "CONUS" to "United States 
addresses".
CONUS restricts it to the 'lower 48', and does not include Alaska, 
Hawaii, and Puerto Rico.
Shipping to those states and US possessions is no different than 
shipping to your next door neighbor - at least that is true for USPS 
shipments.


73,
Don W3FPR

On 1/17/2018 9:09 PM, K2bew wrote:

I occasionally sell on eBay and I have one simple reason for Conus only.
Packages sent out of the US cannot be insured, at least through USPS, so if
they are lost or damaged you have no recourse.

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Re: [Elecraft] K1-2-Band-Module for sale on eBay...

2018-01-17 Thread K2bew 
I occasionally sell on eBay and I have one simple reason for Conus only.
Packages sent out of the US cannot be insured, at least through USPS, so if
they are lost or damaged you have no recourse.
Maybe that’s not true of private shippers I don’t know.
As far as PayPal protection they almost always side the buyer, not the
seller. I don’t believe they offer any help if your package is lost or
seriously damaged, in fact it’s usually the  opposite, if a buyer gets
something damaged then you as the seller are forced to refund all the
money. So, if it is uninsured because you can’t get insurance if it’s
shipped out of the US, your out the item and have to pay the buyer back.
73,
Tom, k2bew
-- 
Sent from my iPad Gmail
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Re: [Elecraft] K1-2-Band-Module for sale on eBay...

2018-01-17 Thread Lynn W. Taylor, WB6UUT 

If I'm not mistaken, PayPal payments are revocable -- they can be reversed.

Recovering the item or getting your money is easier if you can do it 
under the same legal system -- if you don't have to deal with 
international law.


Most of us have no desire to commit fraud, so it isn't an issue.

That doesn't explain Alaska or Hawaii, especially if the buyer is 
willing to cover shipping.


73 -- Lynn


The other possibility is that they do not want to deal with payment from
all over the world, but PayPal makes that seemless in most cases.

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Re: [Elecraft] K1-2-Band-Module for sale on eBay...

2018-01-17 Thread Edward R Cole 

Don,

This is one of my biggest gripes.  So many sellers (and not just 
hams) that will not ship to AK/HI or outside the US (48-states).


I handle all international sales of preamps for (Pete-WA2ODO) since 
most want to use PayPal for its ease of currency exchange.  I also 
handle any US sales that want to use PayPal to purchase Pet's 
preamps.  MY point is that I am doing custom's paperwork and the 
differences in insurance for different countries a lot.  The form is 
not difficult:  They want both address of sender and receiver, 
description of package, weight, value of package, and shippers code 
(a drop down menu) which for most will be the under $2500 
category.  If you do the form at the PO they will help 
you.  Insurance coverage differs by country so sipping expensive 
items might not be attractive by international mail.  UPS/FedEx are 
an alternative but an expensive one; typically 2x or more what 
flat-rate priority mail will cost.


73, Ed - KL7UW
on the third moon orbiting Saturn (which you call Alaska)!  BTW 
Alaska is on the NA continent (not an island floating off Catalina Is 
as shown on some maps).


I don't understand why some sellers insist on CONUS only.  I can
understand if they do not want to fill out the customs forms, but that
is not difficult.  The amount of insurance can be limited depending on
which country the item is being shipped to, and that can be a factor for
high value items.

Of course, many sellers do not seem to realize that shipping to Alaska,
Hawaii, and Puerto Rico is the same as shipping to the continental US
and so they specify "CONUS" when it is not necessary.

The other possibility is that they do not want to deal with payment from
all over the world, but PayPal makes that seemless in most cases.

73,
Don W3FPR


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


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Re: [Elecraft] K3S Microphone Cable

2018-01-17 Thread Jim Brown 
The only environmental issues that could affect audio are 1) magnetic 
fields developed by faults in the power wiring in your home or leakage 
flux from big power transformers; 2) a variable-speed motor controller 
very nearby; 3) difference in potential between interconnected equipment 
that creates leakage currents on cable shields.


Cable shields have NO effect on magnetic coupling at audio frequencies. 
Twisting, however, is VERY resistant to magnetic coupling. #2 is by 
magnetic coupling if the source is nearby. The cure for #3 is BONDING.


Magnetic coupling also occurs in loops that are part of the signal path, 
like cable shields in unbalanced circuits. Coupling is proportional to 
the area of the loop, so keeping bonding conductors as short as possible 
helps.  Also, by virtue of the difference in the resistance of cable 
shields and bonding conductors, a beefy #10 or #12 bonding conductor 
will carry far more of any induced current than cable shields that are 
typically #18 - #22 gauge.


73, Jim K9YC

 On 1/17/2018 4:35 AM, Clay Autery wrote:
Frankly...  the electromagnetic environment in my home vicinity 
prrsently is like trying to manage airspace in a war zone during a 
major offensuve.




Sent from my Verizon, Samsung Galaxy smartphone

 Original message 
From: Garry VE7PNQ 
Date: 1/16/18 22:09 (GMT-06:00)
To: j...@audiosystemsgroup.com, elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S Microphone Cable

Back in my broadcast years I worked at the low budget end of the 
industry where we did what ever it took to get on the air at the 
lowest cost possible. In  small market stations where Radio Shack was 
our primary local parts supplier we abused unbalanced lines to the 
extreme as long as the cable length was not too long and the nearest 
transmitter was not too close. Low cost mixers had 3 pin connectors 
but with two pins grounded to accommodate a broad range of low cost 
mics, cables and adaptors.


Later in life when I had more money, the cost of mixers, differential 
amps etc was lower and the distance to high powered amateur radio 
transmitters was inches rather than miles, I adopted a more rigid 
adherence to broadcast standard low impedance cables even over 
relatively short cable lengths of a few inches or feet. As good as the 
noise rejection of new pre-amplifiers are, I still find separation of 
shield grounding and the minus side of a mic input important with 
modern radios. This has become more important in the era of huge 
numbers RFI sources such as digital radios, local residential RFI from 
IOT, LED lamps, cheap switching power supplies, thermostats and people 
still using compact fluorescent lights.


OK honest truth, how many of us only have one radio operating at a 
time? How often do you need your HF rig to reject RFI from your 
VHF/UHF transmitter, computer accessories or switching power supplies 
in our energy saving appliances.


I may be showing my age but physics doesn't change. Shielding external 
noise before it reaches the input to the pre-amplifier is still an 
effective strategy. I still use balanced lines when ever I can.


Garry
VE7PNQ





-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown

Sent: Tuesday, January 16, 2018 9:49 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S Microphone Cable

The nature of the shield matters a lot. Back in 1994, Neil Muncy, 
ex-W3WJE (SK), published the landmark AES paper in which he exposed 
both The Pin One Problem and Shield Current Induced Noise (SCIN). The 
Pin One Problem is the (now) well known equipment design defect, 
whereby the cable shield fails to contact the shielding enclosure, 
first going to the circuit board, where shield current is coupled to 
the circuitry. SCIN is a defect in the construction of "rack cable" 
having a foil/drain shield, whereby the drain wire is twisted at the 
same rate as the signal pair and is much closer (along the cable) to 
one signal conductor than the other. This causes shield current to 
induce a differential voltage on the signal pair.


Neil did his work on how these mechanisms coupled at audio 
frequencies, but in multiple bar conversations when we met at 
conventions, he said that both were also very strong causes of RFI, 
and that Pin One was the dominant cause. In 2003, I did research that 
confirmed this. Audio old-timers may recall that in the late '80s and 
early '90s, Mackie mixers were almost certain to pick up AM broadcast 
stations that were on the high end of the band. My work on 
susceptibility of equipment showed that they suffered both from Pin 
One Problems AND that the bandwidth of their audio circuitry extended 
past 1 MHz!  In attempting to use one of these mixers to test 
condenser mics for RFI from FM and TV broadcast, I found that these 
mixers themselves strongly detected RF from TV channel 2, and were 
thus unusable!


I

Re: [Elecraft] K1-2-Band-Module for sale on eBay...

2018-01-17 Thread G4GNX 

Couldn't agree more, Don.

73,

Alan. G4GNX

-Original Message- 
From: Don Wilhelm 
Sent: Wednesday, January 17, 2018 5:25 PM 
To: Petr, OK1RP/M0SIS ; elecraft@mailman.qth.net 
Subject: Re: [Elecraft] K1-2-Band-Module for sale on eBay... 


Petr,

I don't understand why some sellers insist on CONUS only.  I can 
understand if they do not want to fill out the customs forms, but that 
is not difficult.  The amount of insurance can be limited depending on 
which country the item is being shipped to, and that can be a factor for 
high value items.


Of course, many sellers do not seem to realize that shipping to Alaska, 
Hawaii, and Puerto Rico is the same as shipping to the continental US 
and so they specify "CONUS" when it is not necessary.


The other possibility is that they do not want to deal with payment from 
all over the world, but PayPal makes that seemless in most cases.


73,
Don W3FPR

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Re: [Elecraft] K1-2-Band-Module for sale on eBay...

2018-01-17 Thread Don Wilhelm 

Petr,

I don't understand why some sellers insist on CONUS only.  I can 
understand if they do not want to fill out the customs forms, but that 
is not difficult.  The amount of insurance can be limited depending on 
which country the item is being shipped to, and that can be a factor for 
high value items.


Of course, many sellers do not seem to realize that shipping to Alaska, 
Hawaii, and Puerto Rico is the same as shipping to the continental US 
and so they specify "CONUS" when it is not necessary.


The other possibility is that they do not want to deal with payment from 
all over the world, but PayPal makes that seemless in most cases.


73,
Don W3FPR

On 1/17/2018 11:54 AM, Petr, OK1RP/M0SIS wrote:

Hi,

I found the auction for K1 2-Bands module on eBay which ended for $45...
https://www.ebay.com/itm/Elecraft-K1-Transceiver-2-Band-Module-Only-20-amp-40M-/372184649724?nma=true=vAbaG%252FvidlpdaVrb24QBH%252F2719M%253D_cvip=true=nc&_trksid=p2047675.l2557
...no way to ship outside US condition by seller set so impossible to
bidding on that for me in EU.

Another seller from Italy offered the quite same 2-Bands module for over
$250 and this auction was ended w/o bids of course.
https://www.ebay.it/itm/Elecraft-module-KFL1-2-modulo-K1-80-17-meters-/152860914572

Is there someone who is understanding to the differences of the prices and
"CONUS only" requirements please?

Thanks for comments as I would like to understand it too.

BTW: Still looking for KAT1 and KFL1-2 or KFL1-4 built/un-built kits for my
sons K1...:)
73 - Petr, OK1RP



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Re: [Elecraft] KPA500 Firmware

2018-01-17 Thread Michael Eberle 
The KPA500 utility will find v1.54.  It is on the website but without an 
obvious link to it.  You have to go to the beta FW folder 
(ftp://ftp.elecraft.com/KPA/firmware/beta/) and then click "[parent 
directory]" at the top of the page.  There you will find the 
KPA500FP0154.hex and the kpafwnotes.rtf for 1.54.  I had to save the 
kpafwnotes.rtf to my desktop and open it with Wordpad.


73, Mike KI0HA


On 1/16/2018 21:21, Dennis Moore wrote:

But I agree, the Elecraft site does not show 1.54 as being available.

Dennis


On 1/16/2018 19:19, Dennis Moore wrote:
Using the KPA Utility I just upgraded mine from 1.47 to 1.54, so it 
is there.


73, Dennis NJ6G 


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[Elecraft] K1-2-Band-Module for sale on eBay...

2018-01-17 Thread Petr, OK1RP/M0SIS 
Hi,

I found the auction for K1 2-Bands module on eBay which ended for $45...
https://www.ebay.com/itm/Elecraft-K1-Transceiver-2-Band-Module-Only-20-amp-40M-/372184649724?nma=true=vAbaG%252FvidlpdaVrb24QBH%252F2719M%253D_cvip=true=nc&_trksid=p2047675.l2557
...no way to ship outside US condition by seller set so impossible to
bidding on that for me in EU.

Another seller from Italy offered the quite same 2-Bands module for over
$250 and this auction was ended w/o bids of course. 
https://www.ebay.it/itm/Elecraft-module-KFL1-2-modulo-K1-80-17-meters-/152860914572

Is there someone who is understanding to the differences of the prices and
"CONUS only" requirements please?

Thanks for comments as I would like to understand it too.

BTW: Still looking for KAT1 and KFL1-2 or KFL1-4 built/un-built kits for my
sons K1...:)
73 - Petr, OK1RP



-
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[Elecraft] SCOUT PACKAGE for sale or possible trade. .for Elecraft K2

2018-01-17 Thread Alan KB7MBI via Elecraft 
SCOUT PACKAGE for sale or possible trade. .
 
GOOD WORKING CONDITION. . 

 
Package includes:
-TT 555 Scout
-TT PS (937)
-TT 291  Antenna Coupler
-Band Modules  160m, 20m, 17m, 15m 10m)
 
-Gregoir T-2000 Headset/boom Mic Several Electret  desk and hand mics 
including TT705 desk mic., 
-DOWNLOADED MANUALS
 
 
 $700  (CONUS ONLY)   OR TRADE FOR  ELECRAFT K2
 
Alan KB7MBI


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Re: [Elecraft] K3s - KPA500

2018-01-17 Thread George Danner 

Buck,
Configure  PWR SET = Per Band

73  George AI4VZ

-Original Message- 
From: Nr4c

Sent: Tuesday, January 16, 2018 10:48 PM
To: Buck
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3s - KPA500

I think you have to set the power to required setting in Operate mode the 
first time. The radio will reset to full or low when amp Mode is selected 
after that.


Sent from my iPhone
...nr4c. bill



On Jan 16, 2018, at 10:11 PM, Buck  wrote:

Someone please help me out because I can't find the answer.

K3s and KPA500 - I know there is a setting so the K3 will know the amp is 
in OPER state and automatically reduce the drive to 25 or so watts. Then 
when you put the amp in STBY of OFF, the K3 will go to 100 watts.


My Amp and K3 are talking to each other for band changes etc but I can't 
get the power to automatically reduce as described.


What am I missing?  Point me to the page in the manual


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Re: [Elecraft] K3S Microphone Cable

2018-01-17 Thread Clay Autery 
Frankly...  the electromagnetic environment in my home vicinity prrsently is 
like trying to manage airspace in a war zone during a major offensuve.


Sent from my Verizon, Samsung Galaxy smartphone
 Original message From: Garry VE7PNQ  Date: 
1/16/18  22:09  (GMT-06:00) To: j...@audiosystemsgroup.com, 
elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S Microphone Cable 
Back in my broadcast years I worked at the low budget end of the industry where 
we did what ever it took to get on the air at the lowest cost possible. In  
small market stations where Radio Shack was our primary local parts supplier we 
abused unbalanced lines to the extreme as long as the cable length was not too 
long and the nearest transmitter was not too close. Low cost mixers had 3 pin 
connectors but with two pins grounded to accommodate a broad range of low cost 
mics, cables and adaptors. 

Later in life when I had more money, the cost of mixers, differential amps etc 
was lower and the distance to high powered amateur radio transmitters was 
inches rather than miles, I adopted a more rigid adherence to broadcast 
standard low impedance cables even over relatively short cable lengths of a few 
inches or feet. As good as the noise rejection of new pre-amplifiers are, I 
still find separation of shield grounding and the minus side of a mic input 
important with modern radios. This has become more important in the era of huge 
numbers RFI sources such as digital radios, local residential RFI from IOT, LED 
lamps, cheap switching power supplies, thermostats and people still using 
compact fluorescent lights. 

OK honest truth, how many of us only have one radio operating at a time? How 
often do you need your HF rig to reject RFI from your VHF/UHF transmitter, 
computer accessories or switching power supplies in our energy saving 
appliances.

I may be showing my age but physics doesn't change. Shielding external noise 
before it reaches the input to the pre-amplifier is still an effective 
strategy. I still use balanced lines when ever I can.

Garry
VE7PNQ





-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown
Sent: Tuesday, January 16, 2018 9:49 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S Microphone Cable

The nature of the shield matters a lot. Back in 1994, Neil Muncy, ex-W3WJE 
(SK), published the landmark AES paper in which he exposed both The Pin One 
Problem and Shield Current Induced Noise (SCIN). The Pin One Problem is the 
(now) well known equipment design defect, whereby the cable shield fails to 
contact the shielding enclosure, first going to the circuit board, where shield 
current is coupled to the circuitry. SCIN is a defect in the construction of 
"rack cable" having a foil/drain shield, whereby the drain wire is twisted at 
the same rate as the signal pair and is much closer (along the cable) to one 
signal conductor than the other. This causes shield current to induce a 
differential voltage on the signal pair.

Neil did his work on how these mechanisms coupled at audio frequencies, but in 
multiple bar conversations when we met at conventions, he said that both were 
also very strong causes of RFI, and that Pin One was the dominant cause. In 
2003, I did research that confirmed this. Audio old-timers may recall that in 
the late '80s and early '90s, Mackie mixers were almost certain to pick up AM 
broadcast stations that were on the high end of the band. My work on 
susceptibility of equipment showed that they suffered both from Pin One 
Problems AND that the bandwidth of their audio circuitry extended past 1 MHz!  
In attempting to use one of these mixers to test condenser mics for RFI from FM 
and TV broadcast, I found that these mixers themselves strongly detected RF 
from TV channel 2, and were thus unusable!

I also tested the RF rejection of quad cables, including Canare, and found that 
they were inferior in that regard to a good braid-shielded cable like Belden 
8412. Gotham Audio cable (an EU cable then imported by the Neumann distributor) 
also performed quite well.

All of that work was published as AES papers. You can buy them for $10 each at 
aes.org, or you can download them without the AES logo from my website for 
free. :)  k9yc.com/publish.htm  Scroll down to find the AES papers.

As to the Heil cable -- I've never seen it, don't know its construction. 
As Don notes, additional conductors can be useful for control functions.

73, Jim K9YC

On 1/16/2018 8:59 AM, Don Wilhelm wrote:
> The Heilwire is IMHO the best wire for ham applications because it 
> contains additional conductors for PTT as well as a shielded twisted 
> pair and is soft and flexible.


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Post:

Re: [Elecraft] Antistatic Silicon Mat?

2018-01-17 Thread Petr, OK1RP/M0SIS 
Thanks for comment Alan,

we still have some of them as we had to purchase large role of that material
in order to get nice price from the seller.
So we cut them for these mats and completed the set which they are fit to
labs as same as to kitchen :)
Some of these set are still available in radioclub.

After ordering and arrival I decided to make several tests:

Several oils, greases and different solvents and mat survived without
any damages.

The flare-up point and it seems to be higher than 1000 C which is
corresponding to almost 2000 F. (I was limited by temp sensors and
thermometer
over here)

The burning thru temperature and it survived 450 C for 2mins which is
corresponding to 850 F. (I was limited by my soldering station, hi)

The max of the temp without any noticeable damage of the top layer. It
survived 200 C for 2mins which is corresponding to 400 F.

Best regards,
73 - Petr, OK1RP



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Re: [Elecraft] KPA500 Questions about power and efficiency

2018-01-17 Thread Richard Lamont 
On 16/01/18 23:52, Don Wilhelm wrote:

> Bottom line, the Elecraft amplifiers will do maximum power at a 50% duty
> cycle all day long.  You should reduce the power for long winded AM
> transmissions, but otherwise you can run maximum power.

If you're running AM, 500W PEP is what you get with 125W carrier and
100% modulation. Run over 125W carrier and you will flat top and
splatter. (In theory. I don't use AM so haven't tried it.)

73,
Richard G4DYA

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