[Elecraft] General Coverage Board for K3s

2022-04-20 Thread Richard
Have you a KBPF3A General Coverage Board you’d sell?

Cheers,

Richard Kunc
W4KBX
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[Elecraft] General Purpose Outputs on KX2

2020-08-15 Thread Ken Simmons
Is anyone using the General Purpose Outputs on the KX2 that comes with the 
KXIO2 board? It says they are user programmable, but to what extent?

Thanks.
Ken
WR7D



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Re: [Elecraft] General Coverage Module (K3)

2016-06-06 Thread Phil Wheeler

Hunter,

My instinct would be to remove and re-seat that 
board. That could solve the problem. A defect in 
the board is unlikely.


All this assumes you have the correct mode in your 
K3 (e.g., not listening to BC band in CW mode).


73, Phil W7OX



On 6/6/16 1:40 PM, Hunter Ellington wrote:

I have the General Coverage Module in my K3, serial number 6969.  Recently, 
whenever I listen to the broadcast band, the signals will drop out, or 
significantly down and an occasion audio will distort.  I do not notice this in 
any other mode, or on the ham bands.  Any thoughts?



Hunter Ellington, K0GFY

Sent using Hushmail

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Re: [Elecraft] General Coverage Module - List Courtesy

2016-06-06 Thread Mike Morrow

> I have the General Coverage Module in my K3, serial number 6969... Any 
> thoughts?

Any???  Any at all???

Yes.  I'm thinking:  "It would be useful and courteous if postings to this list 
indicated ***in the SUBJECT line*** to what Elecraft product the posting 
applies!"

Mike / KK5F

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[Elecraft] General Coverage Module

2016-06-06 Thread Hunter Ellington
I have the General Coverage Module in my K3, serial number 6969.  Recently, 
whenever I listen to the broadcast band, the signals will drop out, or 
significantly down and an occasion audio will distort.  I do not notice this in 
any other mode, or on the ham bands.  Any thoughts?



Hunter Ellington, K0GFY

Sent using Hushmail

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Re: [Elecraft] General coverage bandpass module

2013-03-11 Thread hawley, charles j jr
Main receiver. Didn't think about it, could move it if a reason came up.


Sent from my iPad
Chuck, KE9UW 
(Jack for BMW motorcycles)

On Mar 10, 2013, at 9:58 PM, Harlan hsherr...@reagan.com wrote:

 For those with the sub receiver and only one bandpass module...
 
 Which receiver is it assigned to and why did you pick that receiver?
 
 Harlan
 NC3C
 
 Sent from my Verizon Wireless 4G LTE DROID
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[Elecraft] General coverage bandpa

2013-03-11 Thread Edward R Cole

Harlan,

I chose the main receiver since I assumed most casual listening 
outside the ham bands would not involve both Rx.  Also, I use the 
main receiver on the 500-KHz band for operating with an experimental 
license.  The general coverage board is required to operate out of a 
ham band in TEST mode.  That is how I transmit on the 600 meter band; 
taking 1mw level RF to drive a modified surplus NDB transmitter (the 
K3 replaces the original xtal osc.).


But I guess it would reduce to a personal decision for deciding which 
receiver to install it in.


73, Ed - KL7UW

From: Harlan hsherr...@reagan.com
To: Elecraft Email elecraft@mailman.qth.net
Subject: [Elecraft] General coverage bandpass module
Message-ID: ryi94mxyxvb12xk8ndr13xd9.1362970670...@email.android.com
Content-Type: text/plain; charset=utf-8

For those with the sub receiver and only one bandpass module...

Which receiver is it assigned to and why did you pick that receiver?

Harlan
NC3C

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Re: [Elecraft] General coverage bandpa

2013-03-11 Thread Joe Subich, W4TV


I put BPF boards in both receivers but if I had only one it would
go in the sub RX.  1) I am more likely to use the out of band Rx
for listening to the AM Band and using the Sub RX with a separate
antenna eliminates the losses associated with the pin diode T/R switch.
2) I am likely to want to use the main RX for normal ham operations
while listening to something else (WWV, route weather, SW BC, etc.)
and having the second RX available for the SWLing even when using the
transceiver normally just makes sense.

On the other hand, if I had a need to *transmit* outside the ham bands
I would have no choice other than to put the BPF in the main RX.

73,

   ... Joe, W4TV


On 3/11/2013 3:15 PM, Edward R Cole wrote:

Harlan,

I chose the main receiver since I assumed most casual listening outside
the ham bands would not involve both Rx.  Also, I use the main receiver
on the 500-KHz band for operating with an experimental license.  The
general coverage board is required to operate out of a ham band in TEST
mode.  That is how I transmit on the 600 meter band; taking 1mw level RF
to drive a modified surplus NDB transmitter (the K3 replaces the
original xtal osc.).

But I guess it would reduce to a personal decision for deciding which
receiver to install it in.

73, Ed - KL7UW

From: Harlan hsherr...@reagan.com
To: Elecraft Email elecraft@mailman.qth.net
Subject: [Elecraft] General coverage bandpass module
Message-ID: ryi94mxyxvb12xk8ndr13xd9.1362970670...@email.android.com
Content-Type: text/plain; charset=utf-8

For those with the sub receiver and only one bandpass module...

Which receiver is it assigned to and why did you pick that receiver?

Harlan
NC3C

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[Elecraft] General coverage bandpass module

2013-03-10 Thread Harlan
For those with the sub receiver and only one bandpass module...

Which receiver is it assigned to and why did you pick that receiver?

Harlan
NC3C

Sent from my Verizon Wireless 4G LTE DROID
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Re: [Elecraft] general coverage receive on KX3

2012-07-16 Thread Wayne Burdick
webrehm wrote:

 The RF band-pass filters are used for both transmit and receive.  
 Filters are
 selected with low-loss CMOS RF switches. The band pass filters  
 significantly
 attenuate receive signals at harmonics of the RX frequency,  
 particularly the
 odd harmonics.

This is true.


 These filters can seriously degrade SWL sensitivity at non-ham band  
 regions.

Not true. The band-pass filters overlap, so sensitivity is good on  
virtually all SWL bands. It may be a few dB worse in isolated cases.

73,
Wayne
N6KR



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[Elecraft] general coverage receive on X3

2012-07-14 Thread webrehm
wiil the KX3 receive at ~8.5 MHz or ~12 MHz without diminished sensitivity?
If the sensitivity is diminished, by how much?

tks

Dennis



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[Elecraft] general coverage receive on KX3

2012-07-14 Thread Johnny Siu
To my understanding, KX3 is a direct conversation SDR radio.  There is no such 
8Mhz IF, so no need to reduce sensitivity in 8Mhz.


TNX  73,


Johnny VR2XMC

寄件人︰ webrehm dere...@yahoo.com
收件人︰ elecraft@mailman.qth.net 
傳送日期︰ 2012年07月14日 (週六) 2:44 PM
主題︰ [Elecraft] general coverage receive on X3

wiil the KX3 receive at ~8.5 MHz or ~12 MHz without diminished sensitivity?
If the sensitivity is diminished, by how much?

tks

Dennis



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Re: [Elecraft] general coverage receive on KX3

2012-07-14 Thread webrehm
I am not talking about the need to desense because of an IF frequency but
that the front end ham band filters may still be active when doing SWL.   It
is my understanding that the K2 can receive SWL but its front end filters
are ham band only so if you are between any ham bands the sensitivity falls
off, perhaps quite a bit due to the ham band filtering.  so I am really
asking if the front end filters of the KX3 can change/switch to accomodate
SWL across the most common range of 3-16 MHz.

tks

Dennis


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Re: [Elecraft] general coverage receive on KX3

2012-07-14 Thread webrehm

the kx3 manual describes these front end filters as follows

The relay-switched low pass filters are used during both transmit and
receive. A few of the filters are dedicated to one band but most cover two
bands. The signal on the antenna side of the filters pass through a
forward/reflected power and SWR bridge to the HF-6 meter antenna jack (BNC),
or to the optional KXAT3 automatic antenna tuner. Latching relays are used
to minimize power consumption.

The RF band-pass filters are used for both transmit and receive. Filters are
selected with low-loss CMOS RF switches. The band pass filters significantly
attenuate receive signals at harmonics of the RX frequency, particularly the
odd harmonics.

These filters can seriously degrade SWL sensitivity at non-ham band regions. 
Wayne or another designer will be able to answer this question if they are
watching this.

Dennis

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Re: [Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-06-07 Thread Rex Lint
Jim,

It was possible to hear whistlers from storm centers long before you
could hear the thunder.

I doubt the whistlers you heard was from a storm that was close enough to
hear the thunder:

Very low frequency (VLF) radio waves shoot past the ionosphere and into the
next region of space, the magnetosphere.

Here, the atmosphere is completely ionized. The Earth's magnetic field
controls the motions of charged particles, creating channels of ions aligned
with the horseshoe-shaped magnetic field lines. These channels trap VLF
radio waves, guiding them between opposite hemispheres along a path that
reaches up to 15,000 miles from the surface.
http://news.stanford.edu/news/2011/may/robert-helliwell-obit-052011.html 

I visited the lab when I was a freshman (before the advent of dirt) as part
of the tour they gave incoming engineering students.

  -Rex-
 
   K1HI
   Rex Lint
   Merrimack, NH
   WWW.QRZ.COM/db/k1hi 


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[Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-05-26 Thread Oliver Johns
For your information.

--O. Johns W6ODJ

Begin forwarded message:

 --
 This article was sent to you by someone who found it on SFGate.
 The original article can be found on SFGate.com here:
 http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2011/05/23/BABK1JIVEQ.DTL
 -
 Monday, May 23, 2011 (SF Chronicle)
 Robert Helliwell, radio science pioneer, dies
 mailto:dperl...@sfchronicle.com;David Perlman, Chronicle Science Editor
 
 
   When Robert A. Helliwell, a Stanford electrical engineer, heard a
 mysterious series of high-pitched, drawn-out whistles coming from his
 laboratory's radio receiver more than 60 years ago, his curiosity led him
 to a pathbreaking series of experiments exploring Earth's magnetic field
 and the belt of energetic particles beyond it.
   With great delight over the years, he regularly welcomed visitors to his
 lab to listen to what he called his whistlers, the eerie electrical
 warbling generated by lightning flashes in Canada's Arctic and that had
 sped for thousands of miles through the ionosphere to Stanford.
   Professor Helliwell, a distinguished radio science researcher, died May 3
 in Palo Alto of complications from dementia. He was 90.
   During his research, Professor Helliwell once enlisted a powerful Navy
 transmitter to send signals from Annapolis, Md., to a Chilean listening
 post in a lighthouse at Cape Horn. It led him to discover that Earth's
 ionosphere was not 200 miles thick, as scientists had believed, but
 extended at least as high as 20,000 miles.
   Continuing that research, Professor Helliwell sent radio transmitters into
 space aboard NASA satellites to explore the radio properties of the Van
 Allen Belt, where highly energetic electrons and protons trigger the
 aurora borealis, the brilliant northern lights.
   In Antarctica, where the atmosphere was unsullied by radiation from urban
 power lines and radio noise, Professor Helliwell and his students
 installed a very low frequency transmitter at Siple Station, a research
 base 900 miles from the South Pole, and deployed an antenna array 13 miles
 long.
   It sent radio signals to Canada and, because the Antarctic ice sheet is 1
 1/2 miles thick, the antenna in effect was 1 1/2 miles high above Earth.
 Little of the very low frequency radio energy, therefore, was absorbed by
 the ground and the signal from Siple was able to follow Earth's magnetic
 field lines far out into space before returning to Earth in Roberval,
 Canada.
   It was like a lab experiment in space, recalled Donald Carpenter, an
 emeritus professor of electrical engineering at Stanford and one of
 Professor Helliwell's former students.
   He was always a very curious guy, Carpenter said, and if you came to
 him with a question, he'd answer, but you'd come away with still more
 questions. He was a gold mine of insights into the behavior of the
 ionosphere and the magnetosphere, and the Van Allen radiation belts.
   Professor Helliwell's radio frequency experiments at Siple Station were
 his crowning achievements, Carpenter said.
   The scientific world honored him for his work there, and in 1966 the
 government's Board of Geographic Names named a stretch of mountains along
 the coast of Antarctica's Victoria Land as the Helliwell Hills.
   Professor Helliwell was born in Red Wing, Minn., and joined the Stanford
 faculty in 1946 after earning all his university degrees there.
   His high school sweetheart, Jean Perham, also graduated from Stanford. And
 when Professor Helliwell joined the fencing team as an undergraduate, she
 did too - going on to become the university's first female fencing coach.
 Mrs. Helliwell died in 2001.
   Professor Helliwell is survived by his sons, Bradley of Sedona, Ariz.,
 David of Arcata (Humboldt County), and Richard of Colorado Springs; a
 daughter, Donna of Sunnyvale; four grandchildren; and one
 great-great-grandchild.
   A memorial service will be held at the Stanford Memorial Church on June 7
 at 3 p.m. E-mail David Perlman at dperl...@sfchronicle.com. 
 --
 Copyright 2011 SF Chronicle
 

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Re: [Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-05-26 Thread Jim Dunstan
At 10:49 AM 5/26/2011 +0100, you wrote:

With great delight over the years, he regularly welcomed visitors to his
  lab to listen to what he called his whistlers, the eerie electrical
  warbling generated by lightning flashes in Canada's Arctic and that had

Hi,

Just a short line (off elecraft topic ... forgive me) ... when I was15 
years old I bought my first CK-721 transistors (Raytheon) and built a 
'whistler receiver after reading a Scientific American article.  Maybe 
the article  was written by Professor Helliwell ... I can't recall.

The receiving setup is a large 4' diameter loop of many turns (maybe 30-50) 
of copper wire (salvaged from old transformers) connected to a diode 
detector and high gain audio amplifier.  Essentially an audio frequency 
crystal set followed by a high gain audio amplifier.  I hung the loop 
vertically in the attic.  It was possible to hear whistlers from storm 
centers long before you could hear the thunder.  Whistlers appear to be 
electromagnetic waves that fall within the the audio frequency spectrum, 
but they cannot be detected directly by the ear.

By the way the CK-22 which I originally ordered was priced at over $20.00 
... by time I sent away for one, similar CK-721's were already surplus and 
I could get a handful for $5.00 ... an early indication of the speed of 
technological change !!



Back to Elecraft topics hi

Jim

VE3CI


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Re: [Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-05-26 Thread Mike Cox
  Just for a bit of nostalgia, I also had a CK722 (back in the day) 
which I paid about $10 for. My 2N107's legs had previously fallen off 
and this was what I replaced it with. I still have it so here's a 
picture of one of the prettiest transistors ever made sitting on the 
screen of a current production version of a truely classic scientific 
calculator.

http://ab9v.us/a1DSC_2047-1024.jpg

73,
Mike, AB9V


On 5/26/2011 13:42 PM, Jim Dunstan wrote:
 At 10:49 AM 5/26/2011 +0100, you wrote:

With great delight over the years, he regularly welcomed visitors to his
 lab to listen to what he called his whistlers, the eerie electrical
 warbling generated by lightning flashes in Canada's Arctic and that had
 Hi,

 Just a short line (off elecraft topic ... forgive me) ... when I was15
 years old I bought my first CK-721 transistors (Raytheon) and built a
 'whistler receiver after reading a Scientific American article.  Maybe
 the article  was written by Professor Helliwell ... I can't recall.

 The receiving setup is a large 4' diameter loop of many turns (maybe 30-50)
 of copper wire (salvaged from old transformers) connected to a diode
 detector and high gain audio amplifier.  Essentially an audio frequency
 crystal set followed by a high gain audio amplifier.  I hung the loop
 vertically in the attic.  It was possible to hear whistlers from storm
 centers long before you could hear the thunder.  Whistlers appear to be
 electromagnetic waves that fall within the the audio frequency spectrum,
 but they cannot be detected directly by the ear.

 By the way the CK-22 which I originally ordered was priced at over $20.00
 ... by time I sent away for one, similar CK-721's were already surplus and
 I could get a handful for $5.00 ... an early indication of the speed of
 technological change !!



 Back to Elecraft topics hi

 Jim

 VE3CI


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Re: [Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-05-26 Thread Tony Estep
On Thu, May 26, 2011 at 1:35 PM, Mike Cox m...@ab9v.us wrote:

 ...I also had a CK722...here's a picture...


Col! I well remember those little blue gadgets, and the circuits I made
to experiment with them, powered by big fat dry-cell batteries.

Tony KT0NY
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Re: [Elecraft] Elecraft General Interest: SFGate: Robert Helliwell, radio science pioneer, dies

2011-05-26 Thread Ron D'Eau Claire
The transmitting station SAQ in Sweden regularly puts their big transmitter
on the air at 17 kHz. The transmitter is an Alexanderson Alternator - a
fascinating mechanical beast that did an excellent job generating pure CW
back in the days when most stations were running spark. Google will turn up
a wealth of information and photos of it.

Of course electromagnetic waves are not sound waves. You can't hear them
with only your ears even at such low frequencies.  

Back in the early days of radio the consensus among the experts was that
the longer the wavelength (the lower the frequency) the longer the range, so
much effort was put into very low frequency systems that operated in the
same frequency range in which we hear sounds. And electromagnetic waves at
those frequencies do penetrate earth and water better (Navies still use them
to communicate with submerged submarines). It was that flawed thinking that
got us Hams pushed onto the useless Short Wave bands were the experts were
certain we'd never get out of our own backyards running only a kilowatt or
less. 

Ron AC7AC

-Original Message-

The receiving setup is a large 4' diameter loop of many turns (maybe 30-50) 
of copper wire (salvaged from old transformers) connected to a diode 
detector and high gain audio amplifier.  Essentially an audio frequency 
crystal set followed by a high gain audio amplifier.  I hung the loop 
vertically in the attic.  It was possible to hear whistlers from storm 
centers long before you could hear the thunder.  Whistlers appear to be 
electromagnetic waves that fall within the the audio frequency spectrum, 
but they cannot be detected directly by the ear.


Back to Elecraft topics hi

Jim

VE3CI



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Re: [Elecraft] General Digital Contesting Help

2011-02-12 Thread Pete Smith
I'd suggest you take a look at some of the sample macro files that K8UT 
has put on the N1MM Logger web site, at 
http://n1mm.hamdocs.com/tiki-list_file_gallery.php?galleryId=13.  As 
an aid to deciphering, F1 is your CQ message, F2 is your exchange, F3 is 
the TU message used at the end of the QSO, and F4 is reserved for your 
call.  F5 is his call.  In N1MM, your call is represented by * or 
{MYCALL} and his call by !. The rest of the stuff in curly brackets is 
additional automation provided by N1MM.

73, Pete N4ZR

The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at 
reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000



On 2/11/2011 9:22 PM, gold...@charter.net wrote:
 Group,

 I would like to attempt to try and do some digital contesting with my
 K3.

 It took me a long time to get HRD and its associated software working
 and I finally can use the DM780 software fairly good.

 What I am not able to figure out is the proper set of calls and
 responses that contestors are looking for.

 So can someone point me in the proper direction on how to go about
 understanding how contesting works and how to log.   I have been trying
 to read up on the internet, but I am missing some basic points of
 knowledge to pull it together.

 Thanks in advance for your help.

 Don
 KD8NNU


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Re: [Elecraft] General Digital Contesting Help

2011-02-12 Thread goldtr8
Thank you Pete, this is a tremendous amout of help at the sites listed. 
I can go at my reading pace to understand what is going on.

Don
KD8NNU


On Sat, Feb 12, 2011 at 7:05 AM, Pete Smith wrote:

 I'd suggest you take a look at some of the sample macro files that 
 K8UT has put on the N1MM Logger web site, at 
 http://n1mm.hamdocs.com/tiki-list_file_gallery.php?galleryId=13.  As 
 an aid to deciphering, F1 is your CQ message, F2 is your exchange, F3 
 is the TU message used at the end of the QSO, and F4 is reserved for 
 your call.  F5 is his call.  In N1MM, your call is represented by * or 
 {MYCALL} and his call by !. The rest of the stuff in curly brackets is 
 additional automation provided by N1MM.

 73, Pete N4ZR

 The World Contest Station Database, updated daily at 
 www.conteststations.com
 The Reverse Beacon Network at http://reversebeacon.net, blog at 
 reversebeacon.blogspot.com,
 spots at telnet.reversebeacon.net, port 7000



 On 2/11/2011 9:22 PM, gold...@charter.net wrote:
 Group,

 I would like to attempt to try and do some digital contesting with my
 K3.

 It took me a long time to get HRD and its associated software working
 and I finally can use the DM780 software fairly good.

 What I am not able to figure out is the proper set of calls and
 responses that contestors are looking for.

 So can someone point me in the proper direction on how to go about
 understanding how contesting works and how to log.   I have been 
 trying
 to read up on the internet, but I am missing some basic points of
 knowledge to pull it together.

 Thanks in advance for your help.

 Don
 KD8NNU


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 Elecraft mailing list
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[Elecraft] General Digital Contesting Help

2011-02-11 Thread goldtr8
Group,

I would like to attempt to try and do some digital contesting with my 
K3.

It took me a long time to get HRD and its associated software working 
and I finally can use the DM780 software fairly good.

What I am not able to figure out is the proper set of calls and 
responses that contestors are looking for.

So can someone point me in the proper direction on how to go about 
understanding how contesting works and how to log.   I have been trying 
to read up on the internet, but I am missing some basic points of 
knowledge to pull it together.

Thanks in advance for your help.

Don
KD8NNU


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[Elecraft] GENERAL COMMENTS FROM WB8IDY

2011-01-07 Thread Brian McInerney
I usually don’t comment on these types of forums, and invariably someone
will find fault with your comments and take you to task. However; in spite
of that I feel burden to share the following perspectives with this group.

I have had 69 years of experience, many levels of electronic maintenance,
from vacuum type electronics, in the 1950 through large scale integration
using computers and digital logic. Through this time the following has
happened to me.

1. I have seen the following go out of business – Heathkit, Collins, Drake,
and many others. As companies grew larger, they forgot their roots and those
things which made their product so great.

2. I have IC 821 that was a great radio. Company after 6years has
decided not to support the radio can’t get parts. Solution: Throw it way and
buy another radio. The same manufacture has decided not to sell another
produce last year because they new they had a lot of field problems because
of the complaints of the customer. Their solution was to not support the
radio any more. I ask you is that  customer service ? We all now the answer.

3. Some manufactures have proprietary hardware chips and software.  When you
have problems and they have chosen at the corporate  level not to support or
move support services overseas to off shore companies, what happens. We have
all had this happen to us with some computer companies. It is ex-asperating.


I could go on, on and on, so here is my point.  Elecraft Company is doing it
right. Bring jobs back from over seas back to USA. Designing a great
product.  It appears they won’t leave you in the dark. Your support and
further purchases depend on your satisfaction. So lets continue to help
support in all ways to make this company stay in business.

Brian Mc Inerney
WB8IDY
CF 989-859-9374


-- 
Brian McInerney WB8IDY
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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

2011-01-07 Thread george fritkin
Brian, I will only take a small issue with you.  I agree we should support 
any company that brings good, cost effective products to the HAM market.  And 
yes the company should support these products for a reasonable period of time. 
 But as soon as these products become non competitive, just because they are 
from a US company, does not mean we should buy their products.

George, W6GF




From: Brian McInerney wn8...@gmail.com
To: 
Sent: Fri, January 7, 2011 1:28:45 PM
Subject: [Elecraft] GENERAL COMMENTS FROM WB8IDY

I usually don’t comment on these types of forums, and invariably someone
will find fault with your comments and take you to task. However; in spite
of that I feel burden to share the following perspectives with this group.

I have had 69 years of experience, many levels of electronic maintenance,
from vacuum type electronics, in the 1950 through large scale integration
using computers and digital logic. Through this time the following has
happened to me.

1. I have seen the following go out of business – Heathkit, Collins, Drake,
and many others. As companies grew larger, they forgot their roots and those
things which made their product so great.

2. I have IC 821 that was a great radio. Company after 6years has
decided not to support the radio can’t get parts. Solution: Throw it way and
buy another radio. The same manufacture has decided not to sell another
produce last year because they new they had a lot of field problems because
of the complaints of the customer. Their solution was to not support the
radio any more. I ask you is that  customer service ? We all now the answer.

3. Some manufactures have proprietary hardware chips and software.  When you
have problems and they have chosen at the corporate  level not to support or
move support services overseas to off shore companies, what happens. We have
all had this happen to us with some computer companies. It is ex-asperating.


I could go on, on and on, so here is my point.  Elecraft Company is doing it
right. Bring jobs back from over seas back to USA. Designing a great
product.  It appears they won’t leave you in the dark. Your support and
further purchases depend on your satisfaction. So lets continue to help
support in all ways to make this company stay in business.

Brian Mc Inerney
WB8IDY
CF 989-859-9374


-- 
Brian McInerney WB8IDY
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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

2011-01-07 Thread Bruce McLaughlin
I couldn't agree with you more strongly.

Bruce - W8FU

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian McInerney
Sent: Friday, January 07, 2011 4:29 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] GENERAL COMMENTS FROM WB8IDY

I usually don't comment on these types of forums, and invariably someone
will find fault with your comments and take you to task. However; in spite
of that I feel burden to share the following perspectives with this group.

I have had 69 years of experience, many levels of electronic maintenance,
from vacuum type electronics, in the 1950 through large scale integration
using computers and digital logic. Through this time the following has
happened to me.

1. I have seen the following go out of business - Heathkit, Collins, Drake,
and many others. As companies grew larger, they forgot their roots and those
things which made their product so great.

2. I have IC 821 that was a great radio. Company after 6years has
decided not to support the radio can't get parts. Solution: Throw it way and
buy another radio. The same manufacture has decided not to sell another
produce last year because they new they had a lot of field problems because
of the complaints of the customer. Their solution was to not support the
radio any more. I ask you is that  customer service ? We all now the answer.

3. Some manufactures have proprietary hardware chips and software.  When you
have problems and they have chosen at the corporate  level not to support or
move support services overseas to off shore companies, what happens. We have
all had this happen to us with some computer companies. It is ex-asperating.


I could go on, on and on, so here is my point.  Elecraft Company is doing it
right. Bring jobs back from over seas back to USA. Designing a great
product.  It appears they won't leave you in the dark. Your support and
further purchases depend on your satisfaction. So lets continue to help
support in all ways to make this company stay in business.

Brian Mc Inerney
WB8IDY
CF 989-859-9374


-- 
Brian McInerney WB8IDY
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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

2011-01-07 Thread k6rb
I don't disagree with Brian's plaudits for Elecraft's focus on customer
service but that wasn't the primary reason that the companies he sited
went out of business. In a book entitled The Innovator's Dilemma, the
author showed that large companies get caught when technologies change.
Heath, Drake, Collins and others were leaders before solid-state
technology advanced. They were simply not quick enough on their feet to
make the switch to solid state that allowed Yaesu, Icom and Kenwood to eat
their lunch. And, now, that software-defined radio has moved from
edge-of-the-art to state-of-the-art, those companies are being surpassed
as leaders by companies like Elecraft. Historically, leaders in one
technology are not able to make the leap as quickly as new innovators who
don't have the legacy baggage to drag behind them. IBM led in mainframes,
but DEC and HP led in minicomputers, and so on. Nokia led in cell phones,
but is having its lunch eaten by Apple, HTC, LG and Samsung in
smartphones. Customer service is just one part of the complex reasons why
new leaders emerge.

Rob K6RB

 I usually don’t comment on these types of forums, and invariably someone
 will find fault with your comments and take you to task. However; in spite
 of that I feel burden to share the following perspectives with this group.

 I have had 69 years of experience, many levels of electronic maintenance,
 from vacuum type electronics, in the 1950 through large scale integration
 using computers and digital logic. Through this time the following has
 happened to me.

 1. I have seen the following go out of business – Heathkit, Collins,
 Drake,
 and many others. As companies grew larger, they forgot their roots and
 those
 things which made their product so great.

 2. I have IC 821 that was a great radio. Company after 6years has
 decided not to support the radio can’t get parts. Solution: Throw it way
 and
 buy another radio. The same manufacture has decided not to sell another
 produce last year because they new they had a lot of field problems
 because
 of the complaints of the customer. Their solution was to not support the
 radio any more. I ask you is that  customer service ? We all now the
 answer.

 3. Some manufactures have proprietary hardware chips and software.  When
 you
 have problems and they have chosen at the corporate  level not to support
 or
 move support services overseas to off shore companies, what happens. We
 have
 all had this happen to us with some computer companies. It is
 ex-asperating.


 I could go on, on and on, so here is my point.  Elecraft Company is doing
 it
 right. Bring jobs back from over seas back to USA. Designing a great
 product.  It appears they won’t leave you in the dark. Your support and
 further purchases depend on your satisfaction. So lets continue to help
 support in all ways to make this company stay in business.

 Brian Mc Inerney
 WB8IDY
 CF 989-859-9374


 --
 Brian McInerney WB8IDY
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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

2011-01-07 Thread Lew Phelps K6LMP
I wasn't active in ham radio at the time of Heathkit's demise, so I don't know 
what they were doing or not doing in the ham radio arena, but they certainly 
were't lacking for expertise in solid-state electronics. I built their AR-15 
stereo radio kit while I was on a Navy ammunition ship in Vietnam, and later 
built their H-89 computer, which was state of the art at the time, albeit 
primitive by today's standards. These were very well-designed solid state 
products. Heathkit had many others, including an excellent color TV that had 
only one vacuum tube in it - the picture tube. I know they had solid state ham 
products, such as a two meter amplifier. I have no idea how they stacked up to 
the competition in terms of quality and value.  However, since they were truly 
leading edge with solid state hi-fi and computer kits, among other things, I am 
puzzled by the assertion that Heathkit was not able to move from the vacuum 
tube era to solid state products.

Lew K6LMP



On Jan 7, 2011, at 1:44 PM, k...@baymoon.com wrote:

 I don't disagree with Brian's plaudits for Elecraft's focus on customer
 service but that wasn't the primary reason that the companies he sited
 went out of business. In a book entitled The Innovator's Dilemma, the
 author showed that large companies get caught when technologies change.
 Heath, Drake, Collins and others were leaders before solid-state
 technology advanced. They were simply not quick enough on their feet to
 make the switch to solid state that allowed Yaesu, Icom and Kenwood to eat
 their lunch. And, now, that software-defined radio has moved from
 edge-of-the-art to state-of-the-art, those companies are being surpassed
 as leaders by companies like Elecraft. Historically, leaders in one
 technology are not able to make the leap as quickly as new innovators who
 don't have the legacy baggage to drag behind them. IBM led in mainframes,
 but DEC and HP led in minicomputers, and so on. Nokia led in cell phones,
 but is having its lunch eaten by Apple, HTC, LG and Samsung in
 smartphones. Customer service is just one part of the complex reasons why
 new leaders emerge.
 
 Rob K6RB
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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

2011-01-07 Thread Alan Bloom
I believe Heath and Drake had the first two synthesized HF amateur
transceivers on the market.  (SB-104 and TR-7)  And both had solid-state
gear before that.  I don't think their problems were being late adopting
new technology.

IMO Heathkit went belly-up because of poor execution on a number of
their designs.  The SB-104 for example had multiple issues (horrible
birdies, poor sensitivity, poor dynamic range, intermittent
oscillations, etc.)

The reports of Drake's death are greatly exaggerated.  Although they no
longer manufacture ham equipment the company is alive and well.

Al N1AL


On Fri, 2011-01-07 at 13:44 -0800, k...@baymoon.com wrote:
 I don't disagree with Brian's plaudits for Elecraft's focus on customer
 service but that wasn't the primary reason that the companies he sited
 went out of business. In a book entitled The Innovator's Dilemma, the
 author showed that large companies get caught when technologies change.
 Heath, Drake, Collins and others were leaders before solid-state
 technology advanced. They were simply not quick enough on their feet to
 make the switch to solid state that allowed Yaesu, Icom and Kenwood to eat
 their lunch. And, now, that software-defined radio has moved from
 edge-of-the-art to state-of-the-art, those companies are being surpassed
 as leaders by companies like Elecraft. Historically, leaders in one
 technology are not able to make the leap as quickly as new innovators who
 don't have the legacy baggage to drag behind them. IBM led in mainframes,
 but DEC and HP led in minicomputers, and so on. Nokia led in cell phones,
 but is having its lunch eaten by Apple, HTC, LG and Samsung in
 smartphones. Customer service is just one part of the complex reasons why
 new leaders emerge.
 
 Rob K6RB
 
  I usually don’t comment on these types of forums, and invariably someone
  will find fault with your comments and take you to task. However; in spite
  of that I feel burden to share the following perspectives with this group.
 
  I have had 69 years of experience, many levels of electronic maintenance,
  from vacuum type electronics, in the 1950 through large scale integration
  using computers and digital logic. Through this time the following has
  happened to me.
 
  1. I have seen the following go out of business – Heathkit, Collins,
  Drake,
  and many others. As companies grew larger, they forgot their roots and
  those
  things which made their product so great.
 
  2. I have IC 821 that was a great radio. Company after 6years has
  decided not to support the radio can’t get parts. Solution: Throw it way
  and
  buy another radio. The same manufacture has decided not to sell another
  produce last year because they new they had a lot of field problems
  because
  of the complaints of the customer. Their solution was to not support the
  radio any more. I ask you is that  customer service ? We all now the
  answer.
 
  3. Some manufactures have proprietary hardware chips and software.  When
  you
  have problems and they have chosen at the corporate  level not to support
  or
  move support services overseas to off shore companies, what happens. We
  have
  all had this happen to us with some computer companies. It is
  ex-asperating.
 
 
  I could go on, on and on, so here is my point.  Elecraft Company is doing
  it
  right. Bring jobs back from over seas back to USA. Designing a great
  product.  It appears they won’t leave you in the dark. Your support and
  further purchases depend on your satisfaction. So lets continue to help
  support in all ways to make this company stay in business.
 
  Brian Mc Inerney
  WB8IDY
  CF 989-859-9374
 
 
  --
  Brian McInerney WB8IDY
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  This list hosted by: http://www.qsl.net
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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

2011-01-07 Thread Nate Bargmann
What killed Heathkit was that the Big Three were able to bring products
to market that were cheaper and had more features due to mass production
and, in the case of Kenwood, had a contempary and stylish product.
Heath did not catch up until the early '80s and by then it was too late.
To a prospectvie ham (me) looking at a Heathkit catalog from late
1980/early 1981 and seeing their ham offering that had (at least to me)
an early '60s styling to it caused me to look elsewhere until they
introduced an up-to-date kit in 1982 or so.  That said, I did build an
HW-8.  But the TS-520/820/530/830 models were certainly attractive to
me.

Also, the Big Three owned the VHF FM market early on due to frequency
synthesis and memories in a small (for the time) attractive enclosure.
Even in performance oriented amateur radio styling plays a part.

73, de Nate N0NB 

-- 

The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true.

Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

2011-01-07 Thread David Ferrington, M0XDF
You could say the same of me and Elecraft - I new of Elecraft's reputation and 
many of my club friends have K2s, but I was not happy about the looks and 
display of the K2 (ok, so I know better now).
I was about to buy an FT-2000 when the K3 was announced - that was it for me - 
I put the money into the K2 on 2nd May 2007, one of the first buyers and I paid 
for a fully loaded K3 up front - I'm very glad I did (but it was a long wait :-)
73 de M0XDF, K3 #174, P3 #108
-- 
Times are bad. Children no longer obey their parents, and everyone is
writing a book. -Marcus Tullius Cicero, statesman, orator and writer
(106-43 BC)

On 7 Jan 2011, at 22:54, Nate Bargmann wrote:

 What killed Heathkit was that the Big Three were able to bring products
 to market that were cheaper and had more features due to mass production
 and, in the case of Kenwood, had a contempary and stylish product.
 Heath did not catch up until the early '80s and by then it was too late.
 To a prospectvie ham (me) looking at a Heathkit catalog from late
 1980/early 1981 and seeing their ham offering that had (at least to me)
 an early '60s styling to it caused me to look elsewhere until they
 introduced an up-to-date kit in 1982 or so.  That said, I did build an
 HW-8.  But the TS-520/820/530/830 models were certainly attractive to
 me.
 
 Also, the Big Three owned the VHF FM market early on due to frequency
 synthesis and memories in a small (for the time) attractive enclosure.
 Even in performance oriented amateur radio styling plays a part.

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[Elecraft] General Coverage Question - K3

2010-03-20 Thread Don Cunningham
Well, I have completed K3, s/n 4076 and all checks well at the low power 
level with one exception.  I can't figure out how to put the K3 into 
general coverage mode so I can see if the KBPF3 is recognized and working. 
All else I have found, which in itself is amazing to me, hi.  I want to 
check the KBPF3, then install the 100w amp while I'm on a roll!!!  By the 
way, the W2 was a fun build, and works like a champ too!!
73,
Don, WB5HAK 

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Re: [Elecraft] General Coverage Question - K3

2010-03-20 Thread Brett Howard
I've not got one in my radio but you should be able to hear it click in
as you tune well out beyond the edge of a ham band.  So maybe put it
into really coarse fast tune mode and head off the top end of the 80
meter band until you hear it click into place?  You could also pick a
frequency way between bands and turn the KBPF3 on/off and compare
amplitudes.  Keep in mind I believe that you have to power cycle the
radio after making changes to options that are installed. 

~Brett (KC7OTG)

On Sat, 2010-03-20 at 19:00 -0500, Don Cunningham wrote:
 Well, I have completed K3, s/n 4076 and all checks well at the low power 
 level with one exception.  I can't figure out how to put the K3 into 
 general coverage mode so I can see if the KBPF3 is recognized and working. 
 All else I have found, which in itself is amazing to me, hi.  I want to 
 check the KBPF3, then install the 100w amp while I'm on a roll!!!  By the 
 way, the W2 was a fun build, and works like a champ too!!
 73,
 Don, WB5HAK 
 
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Re: [Elecraft] General Coverage Question - K3

2010-03-20 Thread Don Cunningham
Brett,
You are a genious, it worked and the KBPF3 lives, hi.  That was too simple, 
I just didn't try tuning out of the ham bands!!!  I still have yet to figure 
out how to do a lot on the rig (like entering a direct frequency), so now I 
can finish the build with the KPA3 amp.  Thanks for your insight, Brett.
73,
Don, WB5HAK 

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Re: [Elecraft] General Coverage Question - K3

2010-03-20 Thread Brett Howard
Entering a direct freq is easy...

Press FREQ ENT (red button high right from the knob).  Then use the red
numbers to enter the freq (and you can abbreviate).  You can put in 14.2
or you can enter 142 and both will put you on the same freq.

~Brett

On Sat, 2010-03-20 at 19:17 -0500, Don Cunningham wrote:
 Brett,
 You are a genious, it worked and the KBPF3 lives, hi.  That was too simple, 
 I just didn't try tuning out of the ham bands!!!  I still have yet to figure 
 out how to do a lot on the rig (like entering a direct frequency), so now I 
 can finish the build with the KPA3 amp.  Thanks for your insight, Brett.
 73,
 Don, WB5HAK 
 


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Re: [Elecraft] General Coverage Question - K3

2010-03-20 Thread Don Cunningham
Well, I was doing it all right, but didn't see the return icon on the 
keypad.  I'm getting too old, Brett, I don't do icons well at all, hi. 
Thanks once more.  I will read the manual, after I finish the build and 
play, I promise!!!
73,
Don, WB5HAK 

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Re: [Elecraft] General Coverage Question - K3

2010-03-20 Thread Brett Howard
Get your PA in!  I just wanted to make sure you were able to move on as
quick as possible...  Have fun!!!

~Brett (KC7OTG)

On Sat, 2010-03-20 at 19:28 -0500, Don Cunningham wrote:
 Well, I was doing it all right, but didn't see the return icon on the 
 keypad.  I'm getting too old, Brett, I don't do icons well at all, hi. 
 Thanks once more.  I will read the manual, after I finish the build and 
 play, I promise!!!
 73,
 Don, WB5HAK 
 


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[Elecraft] General question about mail-archive.com

2009-12-25 Thread K2MK
I like to use the following link to read the messages on the reflector:
http://www.mail-archive.com/elecraft@mailman.qth.net/maillist.html

When I select a message to read, there is a button at the bottom that used 
to permit me to respond directly to the author of the post without posting 
to the reflector. It used to work just fine but for at least the last month 
when I press that button I get the following error screen:
http://www.mail-archive.com/mailto.php

Does anyone else have this problem or do I have something configured 
incorrectly.

73,
Mike K2MK

 

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Re: [Elecraft] General question about mail-archive.com

2009-12-25 Thread Barry N1EU



Mike K2MK wrote:
 
 I like to use the following link to read the messages on the reflector:
 http://www.mail-archive.com/elecraft@mailman.qth.net/maillist.html
 
 When I select a message to read, there is a button at the bottom that used 
 to permit me to respond directly to the author of the post without posting 
 to the reflector. It used to work just fine but for at least the last
 month 
 when I press that button I get the following error screen:
 http://www.mail-archive.com/mailto.php
 
 Does anyone else have this problem or do I have something configured 
 incorrectly.
 

Mike, their responder is broken/missing - that's a 404 page not found
error you're seeing.  I suggest you instead use
http://n2.nabble.com/Elecraft-f365791.topics.html

73,
Barry N1EU

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Re: [Elecraft] General discussion of DSP vs. IF noise blanking

2009-12-09 Thread Lyle Johnson

 Is the DSP blanker input level also subject to AGC?
   

Hardware AGC - yes; software AGC - no.

73,

Lyle KK7P
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Re: [Elecraft] General discussion of DSP vs. IF noise blanking

2009-12-08 Thread Wayne Burdick
DSP noise blanking is applied after the hardware AGC, as in all other  
rigs I know of that include DSP NB, but I believe it is pre-DSP-AGC.

Lyle may want to comment on this. I know we spent about a year  
optimizing the gain balance!

73,
Wayne
N6KR

On Dec 8, 2009, at 9:39 AM, Duncan Carter wrote:

 Is the DSP blanker input level also subject to AGC?

 Duncan, W5DC

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[Elecraft] General Coverage Receive Module

2009-07-07 Thread Michael M. Raskin
I see that the general coverage receiver module can be installed in either 
the main or sub-receiver.  I was planning to install it on the main board as 
I have the widest filter (13MHz) there.  But before I do, I wanted to hear 
some pros and cons for installing on either board.

Thanks,
Mike, W4UM 

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Re: [Elecraft] General Coverage Receive Module

2009-07-07 Thread Monty Shultes
Mike,

I believe it can be installed in both receivers - 2 modules would be needed. 
I like to monitor 10 and 15 mhz.  Also like to monitor the 10 meter beacons. 
I have the general coverage module in the main receiver at present, and am 
contemplating switching it.

Monty K2DLJ



I see that the general coverage receiver module can be installed in either
 the main or sub-receiver.   Mike, W4UM

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[Elecraft] General Covverage Receive

2007-04-28 Thread John Kinnunen

Wayne, Lyle. and Company,

I have a K2 and enjoy it very much, however, the one thing I wished it 
had was General Coverage on the Receiver. With the announcement of the 
K3 I see there is something about it but not much has been stated as of 
yet. What is the Freq. Range of the General Coverage part of the K3 and 
can one use all the bells and whistles between the Ham Bands that are 
available on the Ham Bands, as far as receive goes?


I enjoy now and then going between the bands to see if there is any 
Intelligence there.


John Kinnunen
KB0ADD
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Re: [Elecraft] General Covverage Receive

2007-04-28 Thread wayne burdick

Hi Joe,

Yes, you can add general coverage receive filters to the main receiver 
and/or the subreceiver. This is the KBP3 option (see order form). The 
rig automatically selects the narrow ham-band filters when you're in 
the ham bands, and the wider filters when you're in-between ham bands.


This option has no effect on ham-band performance and is extremely easy 
to install.


73,
Wayne
N6KR


John Kinnunen wrote:


Wayne, Lyle. and Company,

I have a K2 and enjoy it very much, however, the one thing I wished it 
had was General Coverage on the Receiver. With the announcement of the 
K3 I see there is something about it but not much has been stated as 
of yet. What is the Freq. Range of the General Coverage part of the K3 
and can one use all the bells and whistles between the Ham Bands that 
are available on the Ham Bands, as far as receive goes?


I enjoy now and then going between the bands to see if there is any 
Intelligence there.


John Kinnunen
KB0ADD
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[Elecraft] General SMD Soldering Question

2006-07-27 Thread Wyn Hughes
This is distantly related to the mainstream of QA on this net.I intend to use 
my new K2 to drive a Icom IC-2KL amplifier. Please imagine for now, there is an 
intermediate amp between the K2 and the 2KL.

One of the twin PA boards on the 2KL ( a backup, I have 2 of them) is 
unfortunately, smoked. My immediate task is to solder a pair of 1KV Syfer  
ceramic SMD 0.1 mfd caps between two troubled pcb tabs in the PA output 
coupliing stage, where the previous incumbents were vaporized, by previous 
owner. I think he/she ran it into a low R/high C load on 80 or 160.

This is a heavy solder job at least as heavy as the KPA100 (judging from the 
manual). I think I may need to solder extension tabs to the caps, which are 
about 5mm wide, to bridge a 10-15mm gap between the tabs on the PA board. Of 
course, I need to clean up all the carbon residu on the PA board and tidy up 
the tabs first.

How does one go about this task? Is a solder iron loke a Hakko 936 the best 
tool or should I use a hot air SMD soldering unit or even an oven? Should I use 
solder paste or ordinary 63/37 Kester 44? What temps shuld one use? I normally 
run the Kester 44 at 750F, as per the recommendation on their website.

Comments  much welcomed.

Wyn, VR2AX

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RE: [Elecraft] General SMD Soldering Question

2006-07-27 Thread Don Wilhelm
Wyn,

If you have the hot air gun or oven and solder paste and know how to use it,
by all means go that route, but if not, then just use the Hakko - you will
be soldering two widely spaced tabs on the capacitors rather than finely
spaced leads like are encountered on SMD ICs.  Yes, the Kester 44 will work
just fine if the diameter is small enough to properly control the amount of
solder applied.

If the copper area is large, crank the heat on the Hakko a bit higher or use
a larger iron.

Since you have a 15 to 20 mm gap on the PC board, why not use capacitors
with leads rather than the SMD variety (unless you already have the SMD caps
in hand).  The extension tabs that you add will likely have just as much
inductance as the capacitor leads.  Of course, if this amp is for use at
VHF/UHF, then  any extra inductance may matter, but likely not for HF.

73,
Don W3FPR


 -Original Message-

 This is distantly related to the mainstream of QA on this net.I
 intend to use my new K2 to drive a Icom IC-2KL amplifier. Please
 imagine for now, there is an intermediate amp between the K2 and the 2KL.

 One of the twin PA boards on the 2KL ( a backup, I have 2 of
 them) is unfortunately, smoked. My immediate task is to solder a
 pair of 1KV Syfer  ceramic SMD 0.1 mfd caps between two troubled
 pcb tabs in the PA output coupliing stage, where the previous
 incumbents were vaporized, by previous owner. I think he/she ran
 it into a low R/high C load on 80 or 160.

 This is a heavy solder job at least as heavy as the KPA100
 (judging from the manual). I think I may need to solder extension
 tabs to the caps, which are about 5mm wide, to bridge a 10-15mm
 gap between the tabs on the PA board. Of course, I need to clean
 up all the carbon residu on the PA board and tidy up the tabs first.

 How does one go about this task? Is a solder iron loke a Hakko
 936 the best tool or should I use a hot air SMD soldering unit or
 even an oven? Should I use solder paste or ordinary 63/37 Kester
 44? What temps shuld one use? I normally run the Kester 44 at
 750F, as per the recommendation on their website.

 Comments  much welcomed.

 Wyn, VR2AX



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Re: [Elecraft] General SMD Soldering Question

2006-07-27 Thread Wyn Hughes

Thanks, Don:

I have a larger iron and will try that approach first. I could also have 
tried to source other caps but instinctively went first for something 
similar to what was there before.


Again, greatly appraciate your advice,

73
Wyn, VR2AX
- Original Message - 
From: Don Wilhelm [EMAIL PROTECTED]

To: Wyn Hughes [EMAIL PROTECTED]; elecraft@mailman.qth.net
Sent: Thursday, July 27, 2006 11:29 PM
Subject: RE: [Elecraft] General SMD Soldering Question



Wyn,

If you have the hot air gun or oven and solder paste and know how to use 
it,

by all means go that route, but if not, then just use the Hakko - you will
be soldering two widely spaced tabs on the capacitors rather than finely
spaced leads like are encountered on SMD ICs.  Yes, the Kester 44 will 
work
just fine if the diameter is small enough to properly control the amount 
of

solder applied.

If the copper area is large, crank the heat on the Hakko a bit higher or 
use

a larger iron.

Since you have a 15 to 20 mm gap on the PC board, why not use capacitors
with leads rather than the SMD variety (unless you already have the SMD 
caps

in hand).  The extension tabs that you add will likely have just as much
inductance as the capacitor leads.  Of course, if this amp is for use at
VHF/UHF, then  any extra inductance may matter, but likely not for HF.

73,
Don W3FPR



-Original Message-

This is distantly related to the mainstream of QA on this net.I
intend to use my new K2 to drive a Icom IC-2KL amplifier. Please
imagine for now, there is an intermediate amp between the K2 and the 2KL.

One of the twin PA boards on the 2KL ( a backup, I have 2 of
them) is unfortunately, smoked. My immediate task is to solder a
pair of 1KV Syfer  ceramic SMD 0.1 mfd caps between two troubled
pcb tabs in the PA output coupliing stage, where the previous
incumbents were vaporized, by previous owner. I think he/she ran
it into a low R/high C load on 80 or 160.

This is a heavy solder job at least as heavy as the KPA100
(judging from the manual). I think I may need to solder extension
tabs to the caps, which are about 5mm wide, to bridge a 10-15mm
gap between the tabs on the PA board. Of course, I need to clean
up all the carbon residu on the PA board and tidy up the tabs first.

How does one go about this task? Is a solder iron loke a Hakko
936 the best tool or should I use a hot air SMD soldering unit or
even an oven? Should I use solder paste or ordinary 63/37 Kester
44? What temps shuld one use? I normally run the Kester 44 at
750F, as per the recommendation on their website.

Comments  much welcomed.

Wyn, VR2AX






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[Elecraft] General Trasverter Operation Question

2006-07-22 Thread Sanger, Joseph
I am using a cross-needle, MFJ tuner in between my XV-50 and antenna.
The interaction between the tune and transverter is confusing me a bit
and I was wondering if someone could educate me as to what is going on?

 

I set my transverter output power to something around 20 watts, as
measured on the XV-50 LED display ... then put K2 into tune mode ... and
then adjust the controls on the tuner to minimize the reflected power
and maximize the forward  power, which has the effect of minimizing the
SWR (indicated by the crossover poinit of the two needle indicators).
At least, that is what I think I am supposed to do.  But as I do this,
as I lower the SWR indicator on the tuner, the power output on the XV50
goes up into the red zone, lighting up all of the LED's on the front
panel.  This worries me, and I then back off the power control on the K2
until I am back to 20 watts or so as measured by the XV-50 display.

 

Am I on the right track here?  Or am I doing something stupid?

 

Thanks in advance to the kind soul who may take the time to straighten
me out!

 

-- WB2SSB

 


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RE: [Elecraft] General Trasverter Operation Question

2006-07-22 Thread Don Wilhelm
Why would you need a tuner between the K2 and the XV-50?  The XV-50 has an
input attenuator that provides a good 50 ohm load, and the K2 should drive
it just fine with only a piece of coax connected between the K2 and XV-50 -
the SWR on that coax line should be very close to 1:1.

73,
Don W3FPR


 -Original Message-


 I am using a cross-needle, MFJ tuner in between my XV-50 and antenna.
 The interaction between the tune and transverter is confusing me a bit
 and I was wondering if someone could educate me as to what is going on?



 I set my transverter output power to something around 20 watts, as
 measured on the XV-50 LED display ... then put K2 into tune mode ... and
 then adjust the controls on the tuner to minimize the reflected power
 and maximize the forward  power, which has the effect of minimizing the
 SWR (indicated by the crossover poinit of the two needle indicators).
 At least, that is what I think I am supposed to do.  But as I do this,
 as I lower the SWR indicator on the tuner, the power output on the XV50
 goes up into the red zone, lighting up all of the LED's on the front
 panel.  This worries me, and I then back off the power control on the K2
 until I am back to 20 watts or so as measured by the XV-50 display.



 Am I on the right track here?  Or am I doing something stupid?



 Thanks in advance to the kind soul who may take the time to straighten
 me out!



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RE: [Elecraft] General Trasverter Operation Question

2006-07-22 Thread Sanger, Joseph
I am talking about a tuner in between the XV-50 and a rather depressing little 
end-fed dipole antenna!

-Original Message- 
From: Don Wilhelm [mailto:[EMAIL PROTECTED] 
Sent: Sat 7/22/2006 9:18 PM 
To: Sanger, Joseph; elecraft@mailman.qth.net 
Cc: 
Subject: RE: [Elecraft] General Trasverter Operation Question



Why would you need a tuner between the K2 and the XV-50?  The XV-50 has 
an 
input attenuator that provides a good 50 ohm load, and the K2 should 
drive 
it just fine with only a piece of coax connected between the K2 and 
XV-50 - 
the SWR on that coax line should be very close to 1:1. 

73, 
Don W3FPR 


 -Original Message- 

 
 I am using a cross-needle, MFJ tuner in between my XV-50 and antenna. 
 The interaction between the tune and transverter is confusing me a 
bit 
 and I was wondering if someone could educate me as to what is going 
on? 
 
 
 
 I set my transverter output power to something around 20 watts, as 
 measured on the XV-50 LED display ... then put K2 into tune mode ... 
and 
 then adjust the controls on the tuner to minimize the reflected power 
 and maximize the forward  power, which has the effect of minimizing 
the 
 SWR (indicated by the crossover poinit of the two needle indicators). 
 At least, that is what I think I am supposed to do.  But as I do 
this, 
 as I lower the SWR indicator on the tuner, the power output on the 
XV50 
 goes up into the red zone, lighting up all of the LED's on the front 
 panel.  This worries me, and I then back off the power control on the 
K2 
 until I am back to 20 watts or so as measured by the XV-50 display. 
 
 
 
 Am I on the right track here?  Or am I doing something stupid? 
 
 
 
 Thanks in advance to the kind soul who may take the time to 
straighten 
 me out! 
 
 



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RE: [Elecraft] General Trasverter Operation Question

2006-07-22 Thread Sanger, Joseph
I wasn't even sure i had a problem ... are you saying that the behavior that i 
described below ... is abnormal?  should the power indication on the xv-50 not 
vary as i tune the tuner?  How should it behave as I adjust the tuner?
 
My antenna options are extremely limited at my 3rd floor apt qth ... i can try 
a vertical as well; next step.
 
Thanks, John.
 

-Original Message- 
From: John D'Ausilio [mailto:[EMAIL PROTECTED] 
Sent: Sat 7/22/2006 9:34 PM 
To: Sanger, Joseph 
Cc: 
Subject: Re: [Elecraft] General Trasverter Operation Question



end-fed dipole doesn't sound like a good idea .. very high impedance 
fed at the end. Feed it in the middle and your problem will likely 
disappear 

de w1rt/john 

On 7/22/06, Sanger, Joseph [EMAIL PROTECTED] wrote: 
 I am talking about a tuner in between the XV-50 and a rather 
depressing little end-fed dipole antenna! 
 
 -Original Message- 
 From: Don Wilhelm [mailto:[EMAIL PROTECTED] 
 Sent: Sat 7/22/2006 9:18 PM 
 To: Sanger, Joseph; elecraft@mailman.qth.net 
 Cc: 
 Subject: RE: [Elecraft] General Trasverter Operation Question 
 
 
 
 Why would you need a tuner between the K2 and the XV-50?  The 
XV-50 has an 
 input attenuator that provides a good 50 ohm load, and the K2 
should drive 
 it just fine with only a piece of coax connected between the 
K2 and XV-50 - 
 the SWR on that coax line should be very close to 1:1. 
 
 73, 
 Don W3FPR 
 
 
  -Original Message- 
 
  
  I am using a cross-needle, MFJ tuner in between my XV-50 
and antenna. 
  The interaction between the tune and transverter is 
confusing me a bit 
  and I was wondering if someone could educate me as to what 
is going on? 
  
  
  
  I set my transverter output power to something around 20 
watts, as 
  measured on the XV-50 LED display ... then put K2 into tune 
mode ... and 
  then adjust the controls on the tuner to minimize the 
reflected power 
  and maximize the forward  power, which has the effect of 
minimizing the 
  SWR (indicated by the crossover poinit of the two needle 
indicators). 
  At least, that is what I think I am supposed to do.  But as 
I do this, 
  as I lower the SWR indicator on the tuner, the power output 
on the XV50 
  goes up into the red zone, lighting up all of the LED's on 
the front 
  panel.  This worries me, and I then back off the power 
control on the K2 
  until I am back to 20 watts or so as measured by the XV-50 
display. 
  
  
  
  Am I on the right track here?  Or am I doing something 
stupid? 
  
  
  
  Thanks in advance to the kind soul who may take the time to 
straighten 
  me out! 
  
  
 
 
 
 
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RE: [Elecraft] General Trasverter Operation Question

2006-07-22 Thread Ron D'Eau Claire
That's normal Joseph. Here's what's happening. 

The XV output power is determined by measuring the RF voltage at the antenna
connector. That is converted into a level that lights the power LEDs. The
problem is that the output power measurement is ONLY accurate when the XV is
terminated in a 50-ohm non-reactive load. As you adjust your tuner for a low
SWR, you are changing the load the XV sees and so its output power
indication is thrown off. 

Simply use enough output power to get a good indication on your SWR meter,
then adjust things for the lowest SWR you can get while ignoring the LED
power indicator. Then, when you have the SWR set to minimum, set your K2
output for 20 watts (or whatever you want) indicated on the XV. As long as
the SWR is very low when you set the power level, it'll be accurate. 

Ron AC7AC


-Original Message-

I am using a cross-needle, MFJ tuner in between my XV-50 and antenna. The
interaction between the tune and transverter is confusing me a bit and I was
wondering if someone could educate me as to what is going on?

I set my transverter output power to something around 20 watts, as measured
on the XV-50 LED display ... then put K2 into tune mode ... and then adjust
the controls on the tuner to minimize the reflected power and maximize the
forward  power, which has the effect of minimizing the SWR (indicated by the
crossover poinit of the two needle indicators). At least, that is what I
think I am supposed to do.  But as I do this, as I lower the SWR indicator
on the tuner, the power output on the XV50 goes up into the red zone,
lighting up all of the LED's on the front panel.  This worries me, and I
then back off the power control on the K2 until I am back to 20 watts or so
as measured by the XV-50 display.

Am I on the right track here?  Or am I doing something stupid?

Thanks in advance to the kind soul who may take the time to straighten me
out!

 

-- WB2SSB

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RE: [Elecraft] General Trasverter Operation Question

2006-07-22 Thread Ron D'Eau Claire
End fed dipoles can be very good if they're in the clear! 

Sure, we'd all like 15 elements at 60 feet. And, sure, most of us have to do
with a little less...

Ron AC7AC

-Original Message-

I am talking about a tuner in between the XV-50 and a rather depressing
little end-fed dipole antenna!


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RE: [Elecraft] General Trasverter Operation Question

2006-07-22 Thread Sanger, Joseph
Makes perfect sense to me ... now that I have heard it!

Thanks very much, Ron.

-Original Message-
From: Ron D'Eau Claire [mailto:[EMAIL PROTECTED] 
Sent: Saturday, July 22, 2006 11:17 PM
To: Sanger, Joseph; elecraft@mailman.qth.net
Subject: RE: [Elecraft] General Trasverter Operation Question

That's normal Joseph. Here's what's happening. 

The XV output power is determined by measuring the RF voltage at the
antenna
connector. That is converted into a level that lights the power LEDs.
The
problem is that the output power measurement is ONLY accurate when the
XV is
terminated in a 50-ohm non-reactive load. As you adjust your tuner for a
low
SWR, you are changing the load the XV sees and so its output power
indication is thrown off. 

Simply use enough output power to get a good indication on your SWR
meter,
then adjust things for the lowest SWR you can get while ignoring the LED
power indicator. Then, when you have the SWR set to minimum, set your K2
output for 20 watts (or whatever you want) indicated on the XV. As long
as
the SWR is very low when you set the power level, it'll be accurate. 

Ron AC7AC


-Original Message-

I am using a cross-needle, MFJ tuner in between my XV-50 and antenna.
The
interaction between the tune and transverter is confusing me a bit and I
was
wondering if someone could educate me as to what is going on?

I set my transverter output power to something around 20 watts, as
measured
on the XV-50 LED display ... then put K2 into tune mode ... and then
adjust
the controls on the tuner to minimize the reflected power and maximize
the
forward  power, which has the effect of minimizing the SWR (indicated by
the
crossover poinit of the two needle indicators). At least, that is what I
think I am supposed to do.  But as I do this, as I lower the SWR
indicator
on the tuner, the power output on the XV50 goes up into the red zone,
lighting up all of the LED's on the front panel.  This worries me, and I
then back off the power control on the K2 until I am back to 20 watts or
so
as measured by the XV-50 display.

Am I on the right track here?  Or am I doing something stupid?

Thanks in advance to the kind soul who may take the time to straighten
me
out!

 

-- WB2SSB




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intended recipient(s) and may contain information that is proprietary, 
confidential, and exempt from disclosure under applicable law. Any unauthorized 
review, use, disclosure, or distribution is prohibited. If you have received 
this email in error please notify the sender by return email and delete the 
original message. Please note, the recipient should check this email and any 
attachments for the presence of viruses. The organization accepts no liability 
for any damage caused by any virus transmitted by this email.
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RE: [Elecraft] General testing for key clicks: AGC

2006-03-09 Thread Linden, Mike (BRC-Hes)
  Thanks, guys. It seems my problem was one of absent mindedness. I had
left the noise blanker on in my 930. The result was that I was hearing
K2 key clicks that weren't actually there. Once I disabled the noise
blanker, things sounded great. As you two noted, the AGC was not
affecting the testing. I also took a look at the RF envelope on my scope
and was pleased to see what Elecraft had shown in the key click mod
document.

  -Michael N9BDF 


=

Vic, K2VCO wrote:

I doubt that it matters.  What *does* matter is that you must listen
*away* from the transmitter's frequency...
==
Well put, Vic.  The only thing that should be added to Vic's procedure
is that you should keep the power output of the transmitter being tested
down enough so that the signal in the monitir receiver is S9 or less.

I've tested many rigs for klix monitoring in of my many ham receivers
and AGC on/off does not make a bit of difference, as long as you do it
as Vic and I described (which is the *only* proper way).

BTW, of the many rigs I've checked for klix, the K2 with the click mod
is the cleanest of all.  I believe the click mod is now incorporated in
all new K2 kits.

73, de Earl, K6SE

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[Elecraft] General testing for key clicks: AGC

2006-03-08 Thread Linden, Mike (BRC-Hes)
  Should the receiver's AGC be disabled when testing a transmitter for
key clicks -- does it matter? Does it make the transmitter sound worse
or better?

  Michael  N9BDF  

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Re: [Elecraft] General testing for key clicks: AGC

2006-03-08 Thread Vic K2VCO

Linden, Mike (BRC-Hes) wrote:

  Should the receiver's AGC be disabled when testing a transmitter for
key clicks -- does it matter? Does it make the transmitter sound worse
or better?


I doubt that it matters.  What *does* matter is that you must listen 
*away* from the transmitter's frequency.


To check for clicks, use your narrowest filter and tune off the signal 
frequency, both up and down.  If the transmitter is producing clicks, 
you will hear them when the actual signal is outside the passband.  Some 
rigs produce clicks 3 or more KHz from the frequency.


Some people think that you check for clicks by listening to the signal 
and hearing how 'hard' it sounds.  This is not the case; you can easily 
soften the signal to your ear by using a narrow filter.  The real test 
is is the transmitter generating click energy away from the signal?

--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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RE: [Elecraft] General testing for key clicks: AGC

2006-03-08 Thread Ron D'Eau Claire
Michael N9BDF asked:

  Should the receiver's AGC be disabled when testing a transmitter for key
clicks -- does it matter? Does it make the transmitter sound worse or
better?



Yes, AGC can make the clicks worse, but the BIG issue is to avoid putting
too much signal into the receiver. Unless your rig is no 'louder' (or
registers on the S-meter no higher) than other signals on the band when you
key your rig, what you hear is probably not what others hear. You'll hear
stuff that's not audible a few hundred feet from your shack. 

AGC attack characteristics can make clicks worse, and if you are hitting the
receiver too hard the receiver itself will produce clicks for you that
aren't on your signal. 

Ron AC7AC

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Re: [Elecraft] General testing for key clicks: AGC

2006-03-08 Thread Earl W Cunningham
Vic, K2VCO wrote:

I doubt that it matters.  What *does* matter is that you must listen
*away* from the transmitter's frequency...
==
Well put, Vic.  The only thing that should be added to Vic's procedure is
that you should keep the power output of the transmitter being tested
down enough so that the signal in the monitir receiver is S9 or less.

I've tested many rigs for klix monitoring in of my many ham receivers and
AGC on/off does not make a bit of difference, as long as you do it as Vic
and I described (which is the *only* proper way).

BTW, of the many rigs I've checked for klix, the K2 with the click mod is
the cleanest of all.  I believe the click mod is now incorporated in all
new K2 kits.

73, de Earl, K6SE
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[Elecraft] general

2005-03-19 Thread Ralph Tyrrell


G3RXQ's suggestion that Maybe the reflector could be
sub-divided ? is a good one.
I have to go thru the list and delete all the K2 info
before I am ready to start reading.

How about:
K1,  the one I want most.
KX1, I would read this also.
K2
K2 add ons
Antennas, realliy important to me.
General, so that I get the news of nets and EQP etc.

All subject lines should start with one of the
previous catagories.
Maybe some day I will get a K2, then I can change my
preferances.

73, Ty, W1TF




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Re: [Elecraft] General Coverage

2004-07-12 Thread Don Wilhelm
Bob,

It is not abnormal - the amount of out-of-hamband range may be slightly
different from one K2 to another.

You may be running out of VFO tuning even though the numbers change.  If you
want to verify, check the voltage at the left end of R30 on the RF board.
If it is less than 0.5 volts or much over 7.5 you have run out of range and
it will tune no further.

73,
Don W3FPR

- Original Message - 

I'm the builder of #4175 and have a question concerning the lower end of the
spectrum.  I was attempting to listen for the VFO of the 2N22-40+ that I'm
building at 2085-2185mhz.  I don't hear the VFO nor do I hear anything else
down there.  I tuned into the AM broadcast band and couldn't hear a single
station.  Is this normal for the K2 or do I have a problem?



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[Elecraft] General Coverage

2004-07-12 Thread Bob Miller
Thanks to all who responded to my question, they put my mind at ease.

Bob
WB6KWT
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RE: [Elecraft] General Coverage

2004-07-12 Thread Ron D'Eau Claire
That's normal because of the way the dial works. 

In normal operation the dial readout is not directly related to the VFO
frequency. It's what the logic *assumes* would be the frequency, assuming
the local oscillator can tune to it. There's no direct measurement of the
local oscillator. The local oscillator frequency is only measured in CAL
PLL. 

When you run the CAL PLL, you look up the internal counter to the L.O.
output and the K2 logic  measures the frequency of the L.O. at various
tuning voltage levels. It then creates a table of values that says If a
tuning voltage of 'x' volts is applied to the L.O. tuning, then the receiver
ought to be tuned to 'y' kHz.  And it's that 'y' kHz frequency that is
shown on your dial in normal operation. 

Think of it as an old analog dial with numbers written on the face so you
can see what frequency it's tuned to by seeing where the pointer is on the
dial. Running CAL PLL tunes the K2 across the tuning range and writes
numbers on the dial at intervals so you can see what frequency you are tuned
into when you are operating.

Unlike the old analog dial, there's no hard stop at each end of the range
saying that you can't go farther. It'll just let you keep tuning and tuning
and tuning. 

So, if you tune outside the L.O. range, the numbers will continue to change
on the dial, even though the local oscillator can't be tuned to that
frequency. 

Ron AC7AC


- Original Message - 

I'm the builder of #4175 and have a question concerning the lower end of the
spectrum.  I was attempting to listen for the VFO of the 2N22-40+ that I'm
building at 2085-2185mhz.  I don't hear the VFO nor do I hear anything else
down there.  I tuned into the AM broadcast band and couldn't hear a single
station.  Is this normal for the K2 or do I have a problem?


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