Re: [Elecraft] Transmitting while listening in diversity mode

[Ian White GM3SEK]

Tony Estep wrote:
>Nobody commented on my question last night, but I'd still like to hear from
>your collective wisdom, so here's a repeat: I set up my sub-rx to listen on
>transmit antenna B while the main is listening and transmitting on A, and to
>listen on A while main is listening and transmitting on B. This allows for
>diversity reception.
>
>"...here's my question: My two antennas are located so each is in the
>other's null, but they are not far apart, maybe 50 feet at most. When I
>transmit, I don't hear any carrier-operated relays or see any adverse
>reactions, but I'm still not sure that it's okay. The manual sez "well
>isolated," but what I'm looking for is some objective way to test or
>measure. Can anyone tell me how I can establish for sure that I can, or
>cannot, transmit on A when the sub is connected to B, and vice versa? "
>
>Any info (especially first-hand knowledge) would be much appreciated.

Connect a simple diode milliwattmeter to the feed from the RX antenna. 
All it needs is a 47 ohm resistor, a 1N914/4148 diode, a .01uF ceramic 
cap and your DVM. (This is truly a "Construction 101" project - can 
anyone supply a suitable web reference, please?)

Gently ramp up the power to the TX antenna, and see how much power is 
coming back on the RX input. Repeat with every combination of bands and 
antennas.

Also read "Managing Interstation Interference" by George Cutsogeorge 
W2VJN:


The first chapter is available as a free download and contains key 
information about power levels for receiver front-end damage. The K3 can 
protect itself... but as you say, you should make sure it doesn't have 
to.

For diversity I am using an active antenna based on a small horizontal 
dipole, which works very well in combination with the low-band 
verticals. Checking with the milliwattmeter and gradually ramping up to 
full TX power, both the active antenna and the K3 are well enough 
protected by the cross-polarization. But the 20-10m beam is horizontal 
and also much closer, so additional protection is needed on those bands.



-- 

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
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[Elecraft] LDEs on 80m

[PKA]

I think there is a good chance of observing Long Delayed Echoes on 80m these 
days.
 
I noticed very strong echoes yesterday 6 Jan 2011 at around 19:50 UTC (approx. 
5 hrs after local sunset) on 3523 kHz but just a couple of times during a 5 
minute period. I think I switched ON too late and missed the better part of a 
longer period. The echoes were strong and quite similar to those I recorded in 
January 2009 (delay 237 milliseconds and strongest around 19:30 UTC, about 
4h30m after local sunset).
 
If you operate K2 or K3 with Semi QSK delay of 0,04 sec you will notice this 
kind of echoes immediately.
 
Good luck!
OZ4UN, Poul-Erik
 
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Re: [Elecraft] Transmitting while listening in diversity mode

[Jack Smith]

Ian:

I've written about simple diode RF detectors at 
http://www.cliftonlaboratories.com/diodes_for_rf_probes.htm

These are not 50 ohm terminated, so it would be a matter of adding a 51 
ohm resistor (nearest 5% value) across the RF port). Or a 47 ohm would 
be fine for this purpose.

Jack K8ZOA


On 1/7/2011 4:37 AM, Ian White GM3SEK wrote:
> Tony Estep wrote:
>> Nobody commented on my question last night, but I'd still like to hear from
>> your collective wisdom, so here's a repeat: I set up my sub-rx to listen on
>> transmit antenna B while the main is listening and transmitting on A, and to
>> listen on A while main is listening and transmitting on B. This allows for
>> diversity reception.
>>
>> "...here's my question: My two antennas are located so each is in the
>> other's null, but they are not far apart, maybe 50 feet at most. When I
>> transmit, I don't hear any carrier-operated relays or see any adverse
>> reactions, but I'm still not sure that it's okay. The manual sez "well
>> isolated," but what I'm looking for is some objective way to test or
>> measure. Can anyone tell me how I can establish for sure that I can, or
>> cannot, transmit on A when the sub is connected to B, and vice versa? "
>>
>> Any info (especially first-hand knowledge) would be much appreciated.
> Connect a simple diode milliwattmeter to the feed from the RX antenna.
> All it needs is a 47 ohm resistor, a 1N914/4148 diode, a .01uF ceramic
> cap and your DVM. (This is truly a "Construction 101" project - can
> anyone supply a suitable web reference, please?)
>
> Gently ramp up the power to the TX antenna, and see how much power is
> coming back on the RX input. Repeat with every combination of bands and
> antennas.
>
> Also read "Managing Interstation Interference" by George Cutsogeorge
> W2VJN:
> 
>
> The first chapter is available as a free download and contains key
> information about power levels for receiver front-end damage. The K3 can
> protect itself... but as you say, you should make sure it doesn't have
> to.
>
> For diversity I am using an active antenna based on a small horizontal
> dipole, which works very well in combination with the low-band
> verticals. Checking with the milliwattmeter and gradually ramping up to
> full TX power, both the active antenna and the K3 are well enough
> protected by the cross-polarization. But the 20-10m beam is horizontal
> and also much closer, so additional protection is needed on those bands.
>
>
>
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Re: [Elecraft] Transmitting while listening in diversity mode

[Jack Smith]

I've written about simple diode RF detectors at 
http://www.cliftonlaboratories.com/diodes_for_rf_probes.htm

These are not 50 ohm terminated, so it would be a matter of adding a 51 
ohm resistor (nearest 5% value) across the RF port).

Jack K8ZOA


On 1/7/2011 4:37 AM, Ian White GM3SEK wrote:
> Tony Estep wrote:
>> Nobody commented on my question last night, but I'd still like to hear from
>> your collective wisdom, so here's a repeat: I set up my sub-rx to listen on
>> transmit antenna B while the main is listening and transmitting on A, and to
>> listen on A while main is listening and transmitting on B. This allows for
>> diversity reception.
>>
>> "...here's my question: My two antennas are located so each is in the
>> other's null, but they are not far apart, maybe 50 feet at most. When I
>> transmit, I don't hear any carrier-operated relays or see any adverse
>> reactions, but I'm still not sure that it's okay. The manual sez "well
>> isolated," but what I'm looking for is some objective way to test or
>> measure. Can anyone tell me how I can establish for sure that I can, or
>> cannot, transmit on A when the sub is connected to B, and vice versa? "
>>
>> Any info (especially first-hand knowledge) would be much appreciated.
> Connect a simple diode milliwattmeter to the feed from the RX antenna.
> All it needs is a 47 ohm resistor, a 1N914/4148 diode, a .01uF ceramic
> cap and your DVM. (This is truly a "Construction 101" project - can
> anyone supply a suitable web reference, please?)
>
> Gently ramp up the power to the TX antenna, and see how much power is
> coming back on the RX input. Repeat with every combination of bands and
> antennas.
>
> Also read "Managing Interstation Interference" by George Cutsogeorge
> W2VJN:
> 
>
> The first chapter is available as a free download and contains key
> information about power levels for receiver front-end damage. The K3 can
> protect itself... but as you say, you should make sure it doesn't have
> to.
>
> For diversity I am using an active antenna based on a small horizontal
> dipole, which works very well in combination with the low-band
> verticals. Checking with the milliwattmeter and gradually ramping up to
> full TX power, both the active antenna and the K3 are well enough
> protected by the cross-polarization. But the 20-10m beam is horizontal
> and also much closer, so additional protection is needed on those bands.
>
>
>
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Re: [Elecraft] Transmitting while listening in diversity mode

[Arie Kleingeld PA3A]

Tony,

Most of the time I work in diversity on 160 and 80  when in contest.
I tested the antenna setup by transmitting in one antenne and measure 
the power delivered by the other antenna to a 50ohm resistor.
As long as the power (worst case situation) is low enough (I use a 10mW 
limit)  there's no problem.

(BTW, for the people who want to know, my powermeter can measure from 
-50dBm to +30dBm)

I'd like to add a question: what do other people use as a limit?

73
Arie PA3A



Op 7-1-2011 1:27, Tony Estep schreef:
> Nobody commented on my question last night, but I'd still like to hear from
> your collective wisdom, so here's a repeat: I set up my sub-rx to listen on
> transmit antenna B while the main is listening and transmitting on A, and to
> listen on A while main is listening and transmitting on B. This allows for
> diversity reception.
>
> "...here's my question: My two antennas are located so each is in the
> other's null, but they are not far apart, maybe 50 feet at most. When I
> transmit, I don't hear any carrier-operated relays or see any adverse
> reactions, but I'm still not sure that it's okay. The manual sez "well
> isolated," but what I'm looking for is some objective way to test or
> measure. Can anyone tell me how I can establish for sure that I can, or
> cannot, transmit on A when the sub is connected to B, and vice versa? "
>
> Any info (especially first-hand knowledge) would be much appreciated.
>
>
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[Elecraft] P3 FS

[ORIN G. HELVEY,JR.]

The P3 is sold, pending funds.
Thanks for the interest.

73,
Orin   N5ORT



P3 Panadapter S/N 478 for sale. Perfect condition. Hardly ever turned
on. Just does not fit my operating style.
$595 plus shipping. Money order or check (ship after check clears). No
Paypal.

Thanks,
Orin   N5ORT


Go Back to School
Grant Funding May Be Available to Those Who Qualify
http://thirdpartyoffers.juno.com/TGL3141/4d2709e097fd1cfa36m05vuc
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Re: [Elecraft] K3: options to buy: a summary of what I learnt from you all...

[VK7JB]

Hello All,

A couple of people have asked me to post a summary to share what I learnt
from my question about options for a new K3.  I received 25 replies, many
were off-list emails, offering well considered ideas and advice.  I was 
surprised at how generously people offered their time and their thoughts on
this question, often sharing considerable detail about their own experience
of loading their K3.

People tailored their responses to my situation - I'm a casual operator of
CW/SSB/data modes, working in a location where I rarely, if ever, have to
contend with crowded bands and heavy QRM.  

So bearing that in mind, here's what I learned:

# Unanimously, folks suggested I NOT bother with the high stability
reference oscillator.

#The auto ATU option was thought a good investment - for various reasons.

# There was strong support for the Digital Voice Recorder option and for
putting in the KXV3A option during the initial build, to avoid significant
dis-assembly of the K3 when/if I want to add on the P3 panadapter in the
future.  Several folks mentioned how useful they'd found their DVR,
especially as a "voice saver" calling CQ.

# About filters options:
There was a concensus of opinion that the 2.8 8 pole / 2.7 5 pole swap
wouldn't be of benefit in my situation and that I should just go with the
2.7 / 5 pole stock filter.  Several people suggested I should invest in the
6khz filter to allow AM TX and broadcast band RX and ESSB.  A couple of
people volunteered they had installed the 15khz FM filter, but rarely used
it and thought I could do without that option.  Many people commented on the
effectiveness of the DSP filtering in the K3 and suggested that for the
casual CW I do, that would be enough.  Several others suggested I go with a
400 or 500hz filter, but that I could wait and add them later if I found I
needed them.  I got the feeling that the narrower 2.1/1.8 khz filters for
SSB weren't seen to be a big priority in my situation:  only a couple of
folks mentioned them in passing and only one K3 owner said he found them
very useful for everyday SSB.  

All this seemed like very sensible advice to me.

So what am I going to do?

Well,  I've decided to NOT take the TCXO high stability ref oscillator.  I
WILL install the DVR and General coverage BPF options.  

I've decided NOT to put in the KXV3A until I'm ready to get the panadapter. 
I don't mind dismantling the K3 when that day arrives and I'd like to invest
that money in other features initially.  Having the KXV3A in the K3 from the
beginning won't give me any more immediate enjoyment of the K3, nor any
extra bits to play with, so I've decided it will wait.

As for the filters:

I've decided that I probably WILL do the 2.8 for 2.7 swap and install 8 pole
filters from the beginning.  One K3 owner pointed out that if I do that, I
won't have to swap out, or worry about matching, the 5 pole filters in the
future if/when I come to install the subreceiver.  That seemed sensible to
me, so I'll put in the 8 pole Inrad filters from the beginning and be done
with it.  The only additional filter I'll order initially is the 6khz, 8
pole, to allow better SW broadcast reception and to allow me to experiement
with wider-bandwidth SSB Tx.  I'll see,  over time, whether or not I need a
400hz filter for CW.

So that's it.  Thanks again everyone.  I just have to sell a rig here to
generate some extra funds, then I'll plant my paw on the "Add to Cart"
button and the deal will be done.

73,

John
VK7JB






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View this message in context: 
http://elecraft.365791.n2.nabble.com/K3-advice-about-options-to-buy-tp5891397p5899075.html
Sent from the [K3] mailing list archive at Nabble.com.
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Re: [Elecraft] K3: options to buy: a summary of what I learnt fromyou all...

[Jeff Cochrane - VK4BOF]

Hi John,
I am sure that you will be very happy with your well considered choices.
I too am a casual operator who occasionally gets into contesting. (the VHF/UHF 
Field Days, the RD Contest, CQWW SSB etc)
My own (factory built) K3 has the following options:
Everything BUT the second receiver and the P3. :) 
I even have the K144XV 2M transverter and the PR6 6M pre-amp (The PR6 is a very 
worthwhile option if you are into 6M at all) 

For filtering I use the 13KHz, 6KHz, 2.8KHz, 2.1KHz and 400Hz 8 pole filters 
and I find myself using the 2.8 for SSB most of all except on 40M where I tend 
to favour the 2.1KHz filter.

A mate of mine, (the man who introduced me to K3 goodness) Gary - VK4FD uses 
the 1.8KHz filter and whilst it works for him I find that it's a touch to 
narrow for my hearing.

I use the 16KHz filter almost exclusively on 2m for FM repeaters but I also 
occasionaly use it on the top end of 6M on the repeaters there.(It's also good 
for higher fidelity listening to AM broadcast band signals.)

The 6KHz filter I use for reception when I am listening around in the SWL 
bands. (I have never tried ESSB but I'll get around to it one day)

I haven't had a use for the 400Hz filter yet but I am attempting to learn CW so 
I can make use of it. :) 
(I guess I *could* use it for digital stuff but that's another thing I have yet 
to play with on my K3)

If I had to do it all over again what would I do differently?
I would NOT get the 400Hz filter, I REALLY suck at CW. :-)
Apart from that, I'd probably get a P3 to go with the K3, I dont do enough on 
the low bands to justify the second receiver.

Do I have any critisism of the K3, yep, I sure do.
That damned tinny internal speaker, its a shockerjust as well its easy 
to plug in an external speaker.
And I'd like the main tuning knob to have a bit of weight in it to give a small 
amount of 'flywheel effect'.

Apart from those, I have no complaints that are particularly noteworthy.

Good luck with your purchase, I am sure that you will really enjoy being a K3 
owner, I do!


Jeff Cochrane - VK4BOF
Innisfail, QLD, Australia
Elecraft K3# 4257

  - Original Message - 
  From: VK7JB 
  To: elecraft@mailman.qth.net 
  Sent: Friday, January 07, 2011 10:50 PM
  Subject: Re: [Elecraft] K3: options to buy: a summary of what I learnt 
fromyou all...



  Hello All,

  A couple of people have asked me to post a summary to share what I learnt
  from my question about options for a new K3.  I received 25 replies, many
  were off-list emails, offering well considered ideas and advice.  I was 
  surprised at how generously people offered their time and their thoughts on
  this question, often sharing considerable detail about their own experience
  of loading their K3.

  People tailored their responses to my situation - I'm a casual operator of
  CW/SSB/data modes, working in a location where I rarely, if ever, have to
  contend with crowded bands and heavy QRM.  

  So bearing that in mind, here's what I learned:

  # Unanimously, folks suggested I NOT bother with the high stability
  reference oscillator.

  #The auto ATU option was thought a good investment - for various reasons.

  # There was strong support for the Digital Voice Recorder option and for
  putting in the KXV3A option during the initial build, to avoid significant
  dis-assembly of the K3 when/if I want to add on the P3 panadapter in the
  future.  Several folks mentioned how useful they'd found their DVR,
  especially as a "voice saver" calling CQ.

  # About filters options:
  There was a concensus of opinion that the 2.8 8 pole / 2.7 5 pole swap
  wouldn't be of benefit in my situation and that I should just go with the
  2.7 / 5 pole stock filter.  Several people suggested I should invest in the
  6khz filter to allow AM TX and broadcast band RX and ESSB.  A couple of
  people volunteered they had installed the 15khz FM filter, but rarely used
  it and thought I could do without that option.  Many people commented on the
  effectiveness of the DSP filtering in the K3 and suggested that for the
  casual CW I do, that would be enough.  Several others suggested I go with a
  400 or 500hz filter, but that I could wait and add them later if I found I
  needed them.  I got the feeling that the narrower 2.1/1.8 khz filters for
  SSB weren't seen to be a big priority in my situation:  only a couple of
  folks mentioned them in passing and only one K3 owner said he found them
  very useful for everyday SSB.  

  All this seemed like very sensible advice to me.

  So what am I going to do?

  Well,  I've decided to NOT take the TCXO high stability ref oscillator.  I
  WILL install the DVR and General coverage BPF options.  

  I've decided NOT to put in the KXV3A until I'm ready to get the panadapter. 
  I don't mind dismantling the K3 when that day arrives and I'd like to invest
  that money in other features initially.  Having the KXV3A in the K3 from the
  beginning won't give me any more imme

Re: [Elecraft] K3: options to buy: a summary of what I learnt from you all...

[nr4c]

I think you have made wise choices.

I purchased my K3 one bit at a time, starting with the K3/10.  It was  
a lot of fun opening the boxes each wek for the next couple of months  
and installing the latest purchase.  And, this is the real beauty of  
the K3 design.  You can add any feature you want at a later time.

This is the beggining of a great adventure.

...bc  nr4c




Quoting VK7JB :

>
> Hello All,
>
> A couple of people have asked me to post a summary to share what I learnt
> from my question about options for a new K3.  I received 25 replies, many
> were off-list emails, offering well considered ideas and advice.  I was
> surprised at how generously people offered their time and their thoughts on
> this question, often sharing considerable detail about their own experience
> of loading their K3.
>
> People tailored their responses to my situation - I'm a casual operator of
> CW/SSB/data modes, working in a location where I rarely, if ever, have to
> contend with crowded bands and heavy QRM.
>
> So bearing that in mind, here's what I learned:
>
> # Unanimously, folks suggested I NOT bother with the high stability
> reference oscillator.
>
> #The auto ATU option was thought a good investment - for various reasons.
>
> # There was strong support for the Digital Voice Recorder option and for
> putting in the KXV3A option during the initial build, to avoid significant
> dis-assembly of the K3 when/if I want to add on the P3 panadapter in the
> future.  Several folks mentioned how useful they'd found their DVR,
> especially as a "voice saver" calling CQ.
>
> # About filters options:
> There was a concensus of opinion that the 2.8 8 pole / 2.7 5 pole swap
> wouldn't be of benefit in my situation and that I should just go with the
> 2.7 / 5 pole stock filter.  Several people suggested I should invest in the
> 6khz filter to allow AM TX and broadcast band RX and ESSB.  A couple of
> people volunteered they had installed the 15khz FM filter, but rarely used
> it and thought I could do without that option.  Many people commented on the
> effectiveness of the DSP filtering in the K3 and suggested that for the
> casual CW I do, that would be enough.  Several others suggested I go with a
> 400 or 500hz filter, but that I could wait and add them later if I found I
> needed them.  I got the feeling that the narrower 2.1/1.8 khz filters for
> SSB weren't seen to be a big priority in my situation:  only a couple of
> folks mentioned them in passing and only one K3 owner said he found them
> very useful for everyday SSB.
>
> All this seemed like very sensible advice to me.
>
> So what am I going to do?
>
> Well,  I've decided to NOT take the TCXO high stability ref oscillator.  I
> WILL install the DVR and General coverage BPF options.
>
> I've decided NOT to put in the KXV3A until I'm ready to get the panadapter.
> I don't mind dismantling the K3 when that day arrives and I'd like to invest
> that money in other features initially.  Having the KXV3A in the K3 from the
> beginning won't give me any more immediate enjoyment of the K3, nor any
> extra bits to play with, so I've decided it will wait.
>
> As for the filters:
>
> I've decided that I probably WILL do the 2.8 for 2.7 swap and install 8 pole
> filters from the beginning.  One K3 owner pointed out that if I do that, I
> won't have to swap out, or worry about matching, the 5 pole filters in the
> future if/when I come to install the subreceiver.  That seemed sensible to
> me, so I'll put in the 8 pole Inrad filters from the beginning and be done
> with it.  The only additional filter I'll order initially is the 6khz, 8
> pole, to allow better SW broadcast reception and to allow me to experiement
> with wider-bandwidth SSB Tx.  I'll see,  over time, whether or not I need a
> 400hz filter for CW.
>
> So that's it.  Thanks again everyone.  I just have to sell a rig here to
> generate some extra funds, then I'll plant my paw on the "Add to Cart"
> button and the deal will be done.
>
> 73,
>
> John
> VK7JB
>
>
>
>
>
>
> --
> View this message in context:  
> http://elecraft.365791.n2.nabble.com/K3-advice-about-options-to-buy-tp5891397p5899075.html
> Sent from the [K3] mailing list archive at Nabble.com.
> __
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>


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Re: [Elecraft] K3: options to buy: a summary of what I learnt from you all...

[Chuck Shefflette]

John,

It sounds like you've made some very good choices. I have 2 K3s sitting on my 
desk. One has the high-stability oscillator, one doesn't. I don't see any 
noticeable difference in stability or frequency accuracy between them. As for 
filters, one has a 2.7 KHz and the other a 2.8 KHz. Once again, I don't really 
see any difference but with your idea of potentially adding the second 
receiver, then the 8-Pole filters make good sense. I would strongly urge you to 
go ahead with the KXV3A, it isn't just for the P3. You need this if you want to 
use the external 6M preamp or a transverter, it gives you an IF output, adds a 
dedicated receive antenna input which can be useful at times, and gives you the 
possibility to have a low-level RF output that isn't band limited so you can 
use the K3 as an HF signal generator. Just a thought, no matter what you'll 
love your new toy!

73 and hope to catch you on the air,
Chuck - AA3CS

On 07 Jan 2011, at 07:50, VK7JB wrote:

> 
> Hello All,
> 
> A couple of people have asked me to post a summary to share what I learnt
> from my question about options for a new K3.  I received 25 replies, many
> were off-list emails, offering well considered ideas and advice.  I was 
> surprised at how generously people offered their time and their thoughts on
> this question, often sharing considerable detail about their own experience
> of loading their K3.
> 
> People tailored their responses to my situation - I'm a casual operator of
> CW/SSB/data modes, working in a location where I rarely, if ever, have to
> contend with crowded bands and heavy QRM.  
> 
> So bearing that in mind, here's what I learned:
> 
> # Unanimously, folks suggested I NOT bother with the high stability
> reference oscillator.
> 
> #The auto ATU option was thought a good investment - for various reasons.
> 
> # There was strong support for the Digital Voice Recorder option and for
> putting in the KXV3A option during the initial build, to avoid significant
> dis-assembly of the K3 when/if I want to add on the P3 panadapter in the
> future.  Several folks mentioned how useful they'd found their DVR,
> especially as a "voice saver" calling CQ.
> 
> # About filters options:
> There was a concensus of opinion that the 2.8 8 pole / 2.7 5 pole swap
> wouldn't be of benefit in my situation and that I should just go with the
> 2.7 / 5 pole stock filter.  Several people suggested I should invest in the
> 6khz filter to allow AM TX and broadcast band RX and ESSB.  A couple of
> people volunteered they had installed the 15khz FM filter, but rarely used
> it and thought I could do without that option.  Many people commented on the
> effectiveness of the DSP filtering in the K3 and suggested that for the
> casual CW I do, that would be enough.  Several others suggested I go with a
> 400 or 500hz filter, but that I could wait and add them later if I found I
> needed them.  I got the feeling that the narrower 2.1/1.8 khz filters for
> SSB weren't seen to be a big priority in my situation:  only a couple of
> folks mentioned them in passing and only one K3 owner said he found them
> very useful for everyday SSB.  
> 
> All this seemed like very sensible advice to me.
> 
> So what am I going to do?
> 
> Well,  I've decided to NOT take the TCXO high stability ref oscillator.  I
> WILL install the DVR and General coverage BPF options.  
> 
> I've decided NOT to put in the KXV3A until I'm ready to get the panadapter. 
> I don't mind dismantling the K3 when that day arrives and I'd like to invest
> that money in other features initially.  Having the KXV3A in the K3 from the
> beginning won't give me any more immediate enjoyment of the K3, nor any
> extra bits to play with, so I've decided it will wait.
> 
> As for the filters:
> 
> I've decided that I probably WILL do the 2.8 for 2.7 swap and install 8 pole
> filters from the beginning.  One K3 owner pointed out that if I do that, I
> won't have to swap out, or worry about matching, the 5 pole filters in the
> future if/when I come to install the subreceiver.  That seemed sensible to
> me, so I'll put in the 8 pole Inrad filters from the beginning and be done
> with it.  The only additional filter I'll order initially is the 6khz, 8
> pole, to allow better SW broadcast reception and to allow me to experiement
> with wider-bandwidth SSB Tx.  I'll see,  over time, whether or not I need a
> 400hz filter for CW.
> 
> So that's it.  Thanks again everyone.  I just have to sell a rig here to
> generate some extra funds, then I'll plant my paw on the "Add to Cart"
> button and the deal will be done.
> 
> 73,
> 
> John
> VK7JB
> 
> 
> 
> 
> 
> 
> -- 
> View this message in context: 
> http://elecraft.365791.n2.nabble.com/K3-advice-about-options-to-buy-tp5891397p5899075.html
> Sent from the [K3] mailing list archive at Nabble.com.
> __
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> Help: ht

Re: [Elecraft] Transmitting while listening in diversity mode

[Tony Estep]

Thanks to Don, Ian, Jack and Arie for all the excellent info. I'm good to go
now.

73,
Tony KT0NY
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Re: [Elecraft] K3: options to buy: a summary of what I learnt from you all...

[Bill W4ZV]

VK7JB wrote:
> 
> # About filters options:
> There was a concensus of opinion that the 2.8 8 pole / 2.7 5 pole swap
> wouldn't be of benefit in my situation and that I should just go with the
> 2.7 / 5 pole stock filter.  
> 
>  
> I've decided that I probably WILL do the 2.8 for 2.7 swap and install 8
> pole filters from the beginning.  One K3 owner pointed out that if I do
> that, I won't have to swap out, or worry about matching, the 5 pole
> filters in the future if/when I come to install the subreceiver.  That
> seemed sensible to me, so I'll put in the 8 pole Inrad filters from the
> beginning and be done with it.  
> 

One comment on this.  Matching the 2.7k filters is not critical at all.  For
example if they vary by 100 Hz total (which is more than I've seen in
building 4 units), you can set the offset to half the difference in each
(e.g. one is -0.79 and the other is -0.89, so you set -0.84 for both).  With
an actual 6 dB bandwidth of about 2800 Hz, you will never notice a 50 Hz
offset.

2.7<>2.8k swap fee = $121, plus second 2.8k for $131, results in $252 more
expensive versus two stock 2.7k filters at no additional charge.  However,
as they say "It's your money!"

73,  Bill

-- 
View this message in context: 
http://elecraft.365791.n2.nabble.com/K3-advice-about-options-to-buy-tp5891397p5899769.html
Sent from the [K3] mailing list archive at Nabble.com.
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[Elecraft] K3_Firmware

[Ken Roberson]

Hello All,

I have a fellow ham that has an older K3,
S/N in the low 1000's , Is there any problem's
if I load the new firmware on his K3 ??

73 Ken K5DNL

K3-S/N 1354 & K3-S/N 4549


  
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Re: [Elecraft] Transmitting while listening in diversity mode

[Scott Ellington]

If the power coupled to the RX antenna is too high, or you just want to be 
safe, add a small relay in the RX antenna feedline to disconnect it and ground 
the RX input on transmit.  Radio Shack 275-241 works well.  I run the 12V coil 
on 70 V, with a series resistor, to make it switch faster, but it would 
probably be fast enough for QSK on 12 V.  A reed relay would probably be barely 
audible.

If the sound of the relay bothers you, the same can be done with PIN diodes, 
though it's a bit more complicated. One could probably just copy the circuit of 
one of the switches in the K3.


73,

Scott  K9MA




Scott Ellington
Madison, Wisconsin
USA



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Re: [Elecraft] K3_Firmware

[Don Wilhelm]

  Ken,

No problem that I know of.  Use the latest K3 Utility.
He is missing a lot of function that he could have had long ago.

73,
Don W3FPR

On 1/7/2011 11:11 AM, Ken Roberson wrote:
> Hello All,
>
> I have a fellow ham that has an older K3,
> S/N in the low 1000's , Is there any problem's
> if I load the new firmware on his K3 ??
>
> 73 Ken K5DNL
>
> K3-S/N 1354&  K3-S/N 4549
>
>
>
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[Elecraft] K3_FW

[Ken Roberson]

OK,

Thanks everyone for the info.
I will update his FW later today.

73 All
Ken K5DNL


  
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Re: [Elecraft] K3_Firmware

[Bill Hammond]

My sn 00069 works great :)

On Jan 7, 2011, at 10:16 AM, Don Wilhelm wrote:

>  Ken,
> 
> No problem that I know of.  Use the latest K3 Utility.
> He is missing a lot of function that he could have had long ago.
> 
> 73,
> Don W3FPR
> 
> On 1/7/2011 11:11 AM, Ken Roberson wrote:
>> Hello All,
>> 
>> I have a fellow ham that has an older K3,
>> S/N in the low 1000's , Is there any problem's
>> if I load the new firmware on his K3 ??
>> 
>> 73 Ken K5DNL
>> 
>> K3-S/N 1354&  K3-S/N 4549
>> 
>> 
>> 
>> __
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Bill Hammond-AK5X
wham...@aol.com
a...@mac.com
a...@sbcglobal.net
K3 #69
K2/100 #4637
K1 #2033
KX1 #1023
T1




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Re: [Elecraft] K3_Firmware

[Dick Dievendorff]

Shouldn't be a problem...

Wayne develops K3 firmware with S/N 1, I test the K3 Utility with S/N
00018 and 00987.

73 de Dick, K6KR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken Roberson
Sent: Friday, January 07, 2011 8:12 AM
To: Elecraft Elecraft
Subject: [Elecraft] K3_Firmware

Hello All,

I have a fellow ham that has an older K3, S/N in the low 1000's , Is there
any problem's if I load the new firmware on his K3 ??

73 Ken K5DNL

K3-S/N 1354 & K3-S/N 4549


  
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[Elecraft] Elecraft/Heil MD-2

[Hunsdon Cary III]

Elecraft/Heil MD-2 desk mic with premium black/chrome base for sale.
Set up for K2 but works just as well with K3.  Can send photo to those 
interested
$175 includes priority shipping CONUS; certified check or money order.
Contact off line: h3c...@gmail.com
73,
H. Cary, K4TM
K3-100 #3448
K2-100 #4991




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Re: [Elecraft] LDEs on 80m

[Sverre Holm (LA3ZA)]

Thanks for the tip Poul-Erik, I'll check for that! Probably both 80m and 160m
are possible.

I should expect something in the order of 250-300 ms at my 60 deg N
latitude.

For info on these long delayed echoes, see
http://en.wikipedia.org/wiki/Long_delayed_echo




-
Sverre, LA3ZA

K2 #2198, K3 #3391
http://www.qslnet.de/member/la3za/K2/mod.html LA3ZA Unofficial Guide to K2
modifications 
-- 
View this message in context: 
http://elecraft.365791.n2.nabble.com/LDEs-on-80m-tp5898853p5900166.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] OT - SMT breadboarding -tnx

[Brian Alsop]

Guys,

Thanks for the tips.

While I did first do the dead bug approach on the 3x3mm IC, I'm afraid 
to breath on the board for fear that a connection will be lost.

Looking over the SPARK FUN stuff, I was able to find a breakout board 
for a wider chip that allows half (one side) of the pins to be soldered 
to the board.   That will be OK since I need only a single pin from the 
opposite side.

Definitely not tube construction practice where one could have 20/200 
vision and be a mechanical klutz.

73 de Brian/K3KO



On 1/6/2011 19:24, Kok Chen wrote:
>
> On Jan 6, 2011, at 1/6 10:32 AM, Brian Alsop wrote:
>
>> Just how does one breadboard something with IC SMT parts having 0.025"
>> (or other similarly small) lead spacing? I have a few projects here
>> that require this.
>
> I am not sure they have precisely what you are looking for, but Sparkfun
> has many breakout boards.
>
> http://www.sparkfun.com/categories/20
>
> Go to the end of page 2 of the above and there are some SOIC (1.27mm
> pitch) and SSOP (0.635mm pitch) to DIP adapters. I think the SSOP to DIP
> might fit your needs? If so, they have 8, 16, 20 and 28 pin SSOP
> breakout boards/DIP adapters.
>
> I have no connection with them, but I have bought all sorts of stuff
> from them in past years, from FTDI breakout boards to shaft encoders to
> AVR microprocessor kits. Good vendor. (They also have a low-quantity PC
> board making service if you search though their web site.)
>
> 73
> Chen, W7AY
>
>
>
> -
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1191 / Virus Database: 1435/3363 - Release Date: 01/06/11
>
>



-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 10.0.1191 / Virus Database: 1435/3365 - Release Date: 01/07/11

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Re: [Elecraft] K3: options to buy: a summary of what I learnt from you all...

[Amateur Radio Operator N5GE]

Another justification for not swapping for the 2.8Khz filter is that even the 8
pole filters will need to be adjusted if you want exact alignment with any other
filters.  Not a really big deal, but if you're a perfectionist...

73,

Tom Childers
Radio Amateur N5GE
Licensed since 1976
QCWA Life Member 35102
ARRL Life Member
Retired Professional
C# Software developer
http://www.n5ge.net

On Fri, 7 Jan 2011 08:11:12 -0800 (PST), Bill W4ZV 
wrote:


>One comment on this.  Matching the 2.7k filters is not critical at all.  For
>example if they vary by 100 Hz total (which is more than I've seen in
>building 4 units), you can set the offset to half the difference in each
>(e.g. one is -0.79 and the other is -0.89, so you set -0.84 for both).  With
>an actual 6 dB bandwidth of about 2800 Hz, you will never notice a 50 Hz
>offset.
>
>2.7<>2.8k swap fee = $121, plus second 2.8k for $131, results in $252 more
>expensive versus two stock 2.7k filters at no additional charge.  However,
>as they say "It's your money!"
>
>73,  Bill

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[Elecraft] Transmitting while listening in diversity mode

[Rose]

An IRC Model 196 is an excellent solution.  I have 
them on my K2 and K3.

I think they're available from Array Solutions.

73!  

Ken Kopp - K0PP
elecraftcov...@gmail.com
http://tinyurl.com/7lm3m5


 
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[Elecraft] OT: LDE defined

[DOUGLAS ZWIEBEL]

What is being described does not sound like the "classic" definition of an
LDE.

Google it and you find that many define LDE as a delay of at least 2 seconds
(not milliseconds).  Millisecond delays sounds, to me, like hearing your own
Long Path signal or something else not well definedbut not LDE by the
"usual" definition

As usual, YMMV

de Doug KR2Q

Try these to start
http://www.eskimo.com/~nanook/radio/2006/12/long-delayed-echo-radio-phenomena.html

http://en.wikipedia.org/wiki/Long_delayed_echo
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[Elecraft] Correction: Transmitting while listening in diversity mode

[Rose]

The post should read "ICE Model 196", not "IRC" ...

73! Ken Kopp - K0PP
 
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Re: [Elecraft] OT: LDE defined

[Amateur Radio Operator N5GE]

I agree, Doug.

I've been a ham for 35 years now and have experienced the round the world trip
signals on CW during most good propagation when using QSK.  It's interesting,
but not that rare, especially when you are using high power and good directional
antennas.

73,

Tom Childers
Radio Amateur N5GE
Licensed since 1976
QCWA Life Member 35102
ARRL Life Member
Retired Professional
C# Software developer
http://www.n5ge.net

On Fri, 7 Jan 2011 14:14:24 -0500, DOUGLAS ZWIEBEL   wrote:

>What is being described does not sound like the "classic" definition of an
>LDE.
>
>Google it and you find that many define LDE as a delay of at least 2 seconds
>(not milliseconds).  Millisecond delays sounds, to me, like hearing your own
>Long Path signal or something else not well definedbut not LDE by the
>"usual" definition
>
>As usual, YMMV
>
>de Doug KR2Q
>
[snip]

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Re: [Elecraft] OT: LDE defined

[Steve Ellington]

I've heard myself many times on 80m CW but not the higher bands where one 
would expect to hear your long path signal come back. It's still a mystery.

Steve
N4LQ
- Original Message - 
From: "Amateur Radio Operator N5GE" 
To: "Elecraft Reflector" 
Sent: Friday, January 07, 2011 2:48 PM
Subject: Re: [Elecraft] OT: LDE defined


>
> I agree, Doug.
>
> I've been a ham for 35 years now and have experienced the round the world 
> trip
> signals on CW during most good propagation when using QSK.  It's 
> interesting,
> but not that rare, especially when you are using high power and good 
> directional
> antennas.
>
> 73,
>
> Tom Childers
> Radio Amateur N5GE
> Licensed since 1976
> QCWA Life Member 35102
> ARRL Life Member
> Retired Professional
> C# Software developer
> http://www.n5ge.net
>
> On Fri, 7 Jan 2011 14:14:24 -0500, DOUGLAS ZWIEBEL  
> wrote:
>
>>What is being described does not sound like the "classic" definition of an
>>LDE.
>>
>>Google it and you find that many define LDE as a delay of at least 2 
>>seconds
>>(not milliseconds).  Millisecond delays sounds, to me, like hearing your 
>>own
>>Long Path signal or something else not well definedbut not LDE by the
>>"usual" definition
>>
>>As usual, YMMV
>>
>>de Doug KR2Q
>>
> [snip]
>
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Re: [Elecraft] OT - SMT breadboarding

[Ian White GM3SEK]

Jack Smith wrote:
>BPS makes a small grid prototype board that will mount a variety of SMT 
>parts - one board accommodates different size parts.
>
>http://www.busboard.us/pdfs/BPS-MAR-SP3UT-001.pdf
>

A small British company is now making RF prototyping boards that have 
square pads on a 0.1in grid, with a continuous copper groundplane on the 
reverse. Every pad has an unplated hole drilled through to the 
groundplane, which allows good RF grounding.

The board is very versatile because you can mix and match various styles 
of construction on the two different sides.

The groundplane side can be treated as continuous copper for dead-bug 
and 'ugly' styles of construction, but the pre-drilled holes make it 
very easy to connect through to the pad-style wiring on the other side. 
To make insulated lead-throughs, simply remove the copper around the 
selected holes.

On the pad side, the 0.1in grid is suitable for conventional wire-leaded 
devices and DIL ICs, along with many of the larger SMD packages. 
Smaller-pitch devices can be soldered dead-bug style on either side of 
the board - whichever way works better for that particular part of the 
circuit.




-- 

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
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Re: [Elecraft] OT: LDE defined

[k2zf50]

I also have witnessed signal delays on 80 meters. Not the long delayed echo 
type but the shorter duration echos.  It could be a magnetic field anomaly that 
produces this effect. If we hear the echo I suggest we check out the solar 
flux,  K, A indexes of the time period and record them for future reference.
It is an interesting thing to hear and I have heard them a few times.
Jim Douglas  K2ZF


 
From: Steve Ellington 
To: Amateur Radio Operator N5GE ; Elecraft Reflector 

Sent: Fri, Jan 7, 2011 9:56 am
Subject: Re: [Elecraft] OT: LDE defined


I've heard myself many times on 80m CW but not the higher bands where one 
would expect to hear your long path signal come back. It's sti

Steve
N4LQ
- Original Message - 
From: "Amateur Radio Operator N5GE" 
To: "Elecraft Reflector" 
Sent: Friday, January 07, 2011 2:48 PM
Subject: Re: [Elecraft] OT: LDE defined


>
> I agree, Doug.
>
> I've been a ham for 35 years now and have experienced the round the world 
> trip
> signals on CW during most good propagation when using QSK.  It's 
> interesting,
> but not that rare, especially when you are using high power and good 
> directional
> antennas.
>
> 73,
>
> Tom Childers
> Radio Amateur N5GE
> Licensed since 1976
> QCWA Life Member 35102
> ARRL Life Member
> Retired Professional
> C# Software developer
> http://www.n5ge.net
>
> On Fri, 7 Jan 2011 14:14:24 -0500, DOUGLAS ZWIEBEL  
> wrote:
>
>>What is being described does not sound like the "classic" definition of an
>>LDE.
>>
>>Google it and you find that many define LDE as a delay of at least 2 
>>seconds
>>(not milliseconds).  Millisecond delays sounds, to me, like hearing your 
>>own
>>Long Path signal or something else not well definedbut not LDE by the
>>"usual" definition
>>
>>As usual, YMMV
>>
>>de Doug KR2Q
>>
> [snip]
>
> __
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Re: [Elecraft] OT: LDE defined

[Phil LaMarche]

At the North Pole in 1958, on the higher bands, I heard myself many times.
Was eerie.  KL7FLA on Drift Station Alpha.

Phil

Philip LaMarche
 
LaMarche Enterprises, Inc
p...@lamarcheenterprises.com
www.LaMarcheEnterprises.com 
 
727-944-3226
727-937-8834 Fax
727-510-5038 Cell 
 
www.w9dvm.com
 
K3 #1605
 
CCA 98-00827
CRA 1701
W9DVM
 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Steve Ellington
Sent: Friday, January 07, 2011 2:56 PM
To: Amateur Radio Operator N5GE; Elecraft Reflector
Subject: Re: [Elecraft] OT: LDE defined

I've heard myself many times on 80m CW but not the higher bands where one
would expect to hear your long path signal come back. It's still a mystery.

Steve
N4LQ
- Original Message -
From: "Amateur Radio Operator N5GE" 
To: "Elecraft Reflector" 
Sent: Friday, January 07, 2011 2:48 PM
Subject: Re: [Elecraft] OT: LDE defined


>
> I agree, Doug.
>
> I've been a ham for 35 years now and have experienced the round the world 
> trip
> signals on CW during most good propagation when using QSK.  It's 
> interesting,
> but not that rare, especially when you are using high power and good 
> directional
> antennas.
>
> 73,
>
> Tom Childers
> Radio Amateur N5GE
> Licensed since 1976
> QCWA Life Member 35102
> ARRL Life Member
> Retired Professional
> C# Software developer
> http://www.n5ge.net
>
> On Fri, 7 Jan 2011 14:14:24 -0500, DOUGLAS ZWIEBEL  
> wrote:
>
>>What is being described does not sound like the "classic" definition of an
>>LDE.
>>
>>Google it and you find that many define LDE as a delay of at least 2 
>>seconds
>>(not milliseconds).  Millisecond delays sounds, to me, like hearing your 
>>own
>>Long Path signal or something else not well definedbut not LDE by the
>>"usual" definition
>>
>>As usual, YMMV
>>
>>de Doug KR2Q
>>
> [snip]
>
> __
> Elecraft mailing list
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Re: [Elecraft] OT: LDE defined

[k2zf50]

If I am not mistaken, the original post was in reference to 80 meters. I may be 
wrong, but I am not aware of long path on that band. 
Jim Douglas  K2ZF






-Original Message-
From: Phil LaMarche 
To: 'Steve Ellington' ; 'Amateur Radio Operator N5GE' 
; 'Elecraft Reflector' 
Sent: Fri, Jan 7, 2011 11:11 am
Subject: Re: [Elecraft] OT: LDE defined


At the North Pole in 1958, on the higher bands, I heard myself many times.
Was eerie.  KL7FLA on Drift Station Alpha.

Phil

Philip LaMarche
 
LaMarche Enterprises, Inc
p...@lamarcheenterprises.com
www.LaMarcheEnterprises.com 
 
727-944-3226
727-937-8834 Fax
727-510-5038 Cell 
 
www.w9dvm.com
 
K3 #1605
 
CCA 98-00827
CRA 1701
W9DVM
 

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Steve Ellington
Sent: Friday, January 07, 2011 2:56 PM
To: Amateur Radio Operator N5GE; Elecraft Reflector
Subject: Re: [Elecraft] OT: LDE defined

I've heard myself many times on 80m CW but not the higher bands where one
would expect to hear your long path signal come back. It's still a mystery.

Steve
N4LQ
- Original Message -
From: "Amateur Radio Operator N5GE" 
To: "Elecraft Reflector" 
Sent: Friday, January 07, 2011 2:48 PM
Subject: Re: [Elecraft] OT: LDE defined


>
> I agree, Doug.
>
> I've been a ham for 35 years now and have experienced the round the world 
> trip
> signals on CW during most good propagation when using QSK.  It's 
> interesting,
> but not that rare, especially when you are using high power and good 
> directional
> antennas.
>
> 73,
>
> Tom Childers
> Radio Amateur N5GE
> Licensed since 1976
> QCWA Life Member 35102
> ARRL Life Member
> Retired Professional
> C# Software developer
> http://www.n5ge.net
>
> On Fri, 7 Jan 2011 14:14:24 -0500, DOUGLAS ZWIEBEL  
> wrote:
>
>>What is being described does not sound like the "classic" definition of an
>>LDE.
>>
>>Google it and you find that many define LDE as a delay of at least 2 
>>seconds
>>(not milliseconds).  Millisecond delays sounds, to me, like hearing your 
>>own
>>Long Path signal or something else not well definedbut not LDE by the
>>"usual" definition
>>
>>As usual, YMMV
>>
>>de Doug KR2Q
>>
> [snip]
>
> __
> Elecraft mailing list
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Re: [Elecraft] WSPR with K3

[Joe Subich, W4TV]

 > FLDIGI does not "require" HAMLIB for rig support.

A new version of WSPR requires the use of hamlib for rig support.
The K3 support is broken in hamlib.  Since the question was
specifically about problems with fldigi using hamlib and the K3,
the response was appropriate (and accurate).

I know about (and use) RigCAT for my own testing/support of fldigi.
In fact, I restrict my support for fldigi to the RigCAT interface.
While it provides a work around for fldigi, using RigCAT does not
resolve the issues with hamlib and software that uses it.

73,

... Joe, W4TV


On 1/5/2011 2:59 PM, John Ragle wrote:
> The   K3.XML   file available from the FLDIGI site works completely,
> reliably, and correctly inside FLDIGI (with the K3 in RigCAT and WIN XP
> or WIN 7). I would be glad to supply settings if requested (however,
> that is not what the gentleman asked for). FLDIGI does not "require"
> HAMLIB for rig support.
>
> John Ragle -- W1ZI
>
> =
>
> On 1/3/2011 3:33 PM, Joe Subich, W4TV wrote:
>> The K3 support is (and has been) broken in HAMLIB on the Windows
>> platform.  Fldigi, WSPR and other software that requires HAMLIB
>> for rig support will not work reliably with the K3.
>
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Re: [Elecraft] OT: LDE defined

[Dave Sergeant]

On 7 Jan 2011 at 13:48, Amateur Radio Operator N5GE wrote:

> I've been a ham for 35 years now and have experienced the round the
> world trip signals on CW during most good propagation when using QSK. 
> It's interesting, but not that rare, especially when you are using high
> power and good directional antennas.

In 2002 with my K2 at 5W I heard my own signals coming back to me while 
calling stations on 10m, at a time when there were JA stations coming 
in with auroral tone. These delays were the classic 140ms or so for a 
single hop round the world. My best DX, working myself on longpath...

But the LDE's referred to on 80m are more usually several seconds. 
There was an extensive article in QST a few years ago from a USA 
amateur who had experienced these. You can easily explain the round-the-
world ones (and you don't need high power) but there is no logical 
explanation for the very long delay ones. I don't expect to hear these 
myself with 5W and a short longwire...

73 Dave G3YMC

http://www.davesergeant.com

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[Elecraft] GENERAL COMMENTS FROM WB8IDY

[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] WSPR with K3

[Tony Estep]

On Wed, Jan 5, 2011 at 2:27 PM, Joe Subich, W4TV  wrote:

>
>   A new version of WSPR requires the use of hamlib for rig support
>

Ouch! So I guess we shouldn't get any new versions of WSPR until this
changes - if it ever does.

Tony KT0NY
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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

[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 
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

[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] OT: LDE defined

[Duncan Carter]

On 1/7/2011 2:17 PM, k2z...@aol.com wrote:
> If I am not mistaken, the original post was in reference to 80 meters. I may 
> be wrong, but I am not aware of long path on that band.
> Jim Douglas  K2ZF
>
Long ago, I had a four element vertical driven array for 80 which was 
good for 215 countries worked on 80 during the first year of 5B DXCC.  
In January, I'd consistently work Vitaly, UL7GW, now SK, via long path 
with strong signals.  My experience was that the lower in frequency the 
band, the narrower the region of good signals.My longest distance on 
80 was some UA1 in Archangelsk.

Dunc, W5DC, then W5IOU
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Re: [Elecraft] OT - SMT breadboarding

[David Ferrington, M0XDF]

I have 2 of these boards and they are as described and very useful.
73 de M0XDF, K3 #174, P3 #108
-- 
Arguing with an engineer is like wrestling with a pig in the mud,
after a while you realize you are muddy and the pig is enjoying it.

On 7 Jan 2011, at 20:13, Ian White GM3SEK wrote:

> Jack Smith wrote:
>> BPS makes a small grid prototype board that will mount a variety of SMT 
>> parts - one board accommodates different size parts.
>> 
>> http://www.busboard.us/pdfs/BPS-MAR-SP3UT-001.pdf
>> 
> 
> A small British company is now making RF prototyping boards that have 
> square pads on a 0.1in grid, with a continuous copper groundplane on the 
> reverse. Every pad has an unplated hole drilled through to the 
> groundplane, which allows good RF grounding.
> 
> The board is very versatile because you can mix and match various styles 
> of construction on the two different sides.
> 
> The groundplane side can be treated as continuous copper for dead-bug 
> and 'ugly' styles of construction, but the pre-drilled holes make it 
> very easy to connect through to the pad-style wiring on the other side. 
> To make insulated lead-throughs, simply remove the copper around the 
> selected holes.
> 
> On the pad side, the 0.1in grid is suitable for conventional wire-leaded 
> devices and DIL ICs, along with many of the larger SMD packages. 
> Smaller-pitch devices can be soldered dead-bug style on either side of 
> the board - whichever way works better for that particular part of the 
> circuit.
> 
>  oard-/170586485860>
> 

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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

[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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>


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Re: [Elecraft] short BNC to BNC cable assembly, where to get?

[Lew Phelps K6LMP]

I have found a very neat way to connect my PR-6 to the external antenna 
connectors on the K3.  

Max-Gain Systems (www.mgs4u.com)) offers a great deal (pack of 5 for $2) on SMA 
M-M U-shaped coax jumpers. Here's the web site description:  "These brand new 
super low loss jumpers are made to mil spec by Amphenol, and are packaged in 
sealed bags of 5 jumpers per bag. Connectors are gold plated / Teflon SMA males 
(both ends). Cable is 50 ohm semi-rigid hardline of .141 inch  diameter. Both 
ends of the cable are formed in a radius.  Length across the longest portion 
(top) is 3.25 inches (center to center of SMA connectors. Length of short end 
is  about .875 inch. Length of long end is about 1.625 inch." Photo of this 
product is on their web site at:

http://www.mgs4u.com/RF-Microwave/coaxial-cables.htm  (scroll down to bottom of 
page).

I have used two of these (quite rigid) jumpers, fitted with SMA female-BNC male 
adapters (also available from Max-Gain) to connect my PR-6. The slightly 
"lop-sided" U shape is perfect for tucking the PR-6 under the K3. The PR-6 is 
positioned in such a way that the rear end of the K3 sits on top of the PR-6 
with the rear rubber feet about 3/16" up in the air. I find this desirable, as 
it slightly reduces the angle when the K3 sits on its wire bail stand. The coax 
jumpers sit at an angle (non-horizontal), positioning the PR-6 very near the 
center of the K3, about 1/2 inch forward from the rear of the K3 cabinet. If 
one were troubled by having the K3 sitting directly on the PR-6, one could put 
slightly larger rubber feet on the K3. 

I've played with numerous alternatives to get the PR-6 "out of the way" and not 
projecting off the back end of the K3.  This is the best solution I've found. 

73,

Lew K6LMP

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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

[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

[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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> >
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> >
> >
> 
> 
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Re: [Elecraft] WSPR with K3

[Brendan Minish]

Well since hamblib is 100% free and open source software ANYONE who
wishes to improve the hamlib support for the k3 is completely free to do
so I would expect any shortcomings with K3 support under hamlib to get
fixed in fairly short order 

In addition to this WSPR can use com port signal line PTT which the K3
supports 

On Fri, 2011-01-07 at 15:35 -0600, Tony Estep wrote:
> Ouch! So I guess we shouldn't get any new versions of WSPR until this
> changes - if it ever does.
> 
> Tony KT0NY

-- 
73
Brendan EI6IZ 

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Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

[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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[Elecraft] My new K3

[Joe]

Mr. Brown just delivered my new K3 1 hour ago.  I have all the soldering
completed ;o)>  now for the mechanical assembly and I will be ready to go.

73  Joe K2UF



No trees were harmed in the sending of this e-mail; however, many electrons
were inconvenienced.



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[Elecraft] XV smokin' hot

[Colin VE3MSC]

I've built up all 3 XVs, and find the 432 the hottest of the bunch. 
What are you doing to manage the heat ?  My output power drops and 
the case hits over 60C / 140F if I run for a minute at about 
10W.  (Attenuator not a factor as driving at low level).
VE3MSC Colin


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[Elecraft] N2CQ QRP Contest Calendar: Jan 8 - Feb 8 2011

[Ken Newman]

~
N2CQ QRP CALENDAR
JANUARY 8 - February 8, 2011  
~
070 Club PSKFEST Contest  ... QRP Category
Jan 8, z to 2400z
Rules: http://www.podxs070.com//contests/pskfest_rules.htm
~
Michigan QRP Club Contest (CW) ... QRP Contest!
Jan 8, 1200z to Jan 9, 2359z 
Rules: http://www.qsl.net/miqrpclub/contest.html
~
Worldwide Peace Messenger Cities (CW/SSB)... QRP Category
Jan 8, 1200z to Jan 9, 1200z
Rules: http://www.s59dcd.si/english/
~
North American QSO Party (CW) (100w max. QRP Entries Noted)
Jan 8, 1800z to Jan 9, 0600z
Rules: http://www.ncjweb.com/naqprules.php
~
ARRL RTTY Roundup ... <= 150W Category
Jan 8, 1800z to Jan 9, 2400z
Rules: http://www.arrl.org/rtty-roundup
~
EUCW 160 Meter Contest (CW) ... QRP Category
Jan 8, 2000z to 2300z and 
Jan 9, 0400z to 0700z
Rules: http://www.agcw.org/eucw/eu160.html
~
SKCC Weekend Sprintathon (Straight Key CW) ... QRP Category
Jan 9, z to 2359z
Rules: http://www.skccgroup.com/sprint/wes/
~
DARC 10-Meter Contest (CW/SSB)... <=100 W category
Jan 9, 0900Z to 1059Z
Rules: http://www.darc.de/referate/dx/contest/10m/en/rules/
~
VERON Midwinter QSO Party (CW/SSB) ... QRP Category
Jan 9, 1000z to 1400z
Rules: http://trafficbureau.veron.nl/contest/contest_mw_eng.htm
~
UBA Foxhunt (CW/PSK31/SSB) *** QRP Contest ***
Jan 10, 1930z to 2030z
Rules: http://www.on5ex.be/foxhunt/foxhunt.html
~
80 METER FOXHUNT (CW) *** QRP Contest ***
EST: Jan 11, 9 PM to 10:29 PM
UTC: Jan 12, 0200z to 0329z 
Info: http://www.qrpfoxhunt.org/
~
CWops Mini-CWT Test (CW) ... QRP Category
Jan 12, 1100z to 1200z and
Jan 12, 1900z to 2000z and
Jan 13, 0300z to 0400z
Rules: http://www.cwops.org/onair.html
~
40 METER FOXHUNT (CW) *** QRP Contest ***
EST: Jan 13, 9 PM to 10:29 PM
UTC: Jan 14, 0200z to 0329z 
Info: http://www.qrpfoxhunt.org/
~
LZ OPEN CONTEST (CW 80M/40M) ...QRP Category
Jan 15, z to 0400z
Rules: http://www.lzopen.com/lz-open-contest/rules/rulesF.htm
~
Hungarian DX Contest (CW/SSB) ... QRP Category
Jan 15, 1200z to Jan 16, 1159z
Rules: http://www.ha-dx.com/HADX/html/rules_en.html
~
UK DX RTTY Contest ... 100W Low Power Category
Jan 15, 1200z to Jan 16, 1200z
Rules:http://www.ukdx.srars.org/
~
Feld Hell Club Sprint (Feld Hell) ... QRP Category
Jan 15, 1600z to 1800z
Rules: http://sites.google.com/site/feldhellclub/Home
~
North American QSO Party (SSB) (100w max. QRP Entries Noted)
Jan 15, 1800z to Jan 16, 0600z
Rules: http://www.ncjweb.com/naqprules.php
~
Run For The Bacon (CW) *** QRP Contest ***
EST: Jan 16, 9:00 PM to 11:00 PM
UTC: Jan 17, 0200z to 0400z
Rules: http://www.fpqrp.com/
~
UBA Foxhunt (CW/PSK31/SSB) *** QRP Contest ***
Jan 17, 1930z to 2030z
Rules: http://www.on5ex.be/foxhunt/foxhunt.html
~
80 METER FOXHUNT (CW) *** QRP Contest ***
EST: Jan 18, 9 PM to 10:29 PM
UTC: Jan 19, 0200z to 0329z 
Info: http://www.qrpfoxhunt.org/
~
NAQCC Straight Key/Bug Sprint *** QRP CONTEST! ***
EST: Jan 19, 8:30 PM to 10:30 PM
UTC: Jan 20, 0130z to 0330z
Rules: http://home.windstream.net/yoel/contests.html
~
40 METER FOXHUNT (CW) *** QRP Contest ***
EST: Jan 20, 9 PM to 10:29 PM 
UTC: Jan 21, 0200z to 0329z 
Info: http://www.qrpfoxhunt.org/
~
BARTG RTTY Sprint Contest 
Jan 22, 1200z to Jan 23, 1200z
Rules: http://www.bartg.org.uk/sprintcontest.asp
~
ARRL January VHF Sweepstakes ... Low Power Category
Jan 22, 1900z to Jan 24, 0359z
Rules: http://www.arrl.org/january-vhf-sweepstakes
~
UBA Foxhunt (CW/PSK31/

Re: [Elecraft] GENERAL COMMENTS FROM WB8IDY

[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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Re: [Elecraft] XV smokin' hot

[Don Wilhelm]

  Colin,

It should not get that hot that fast.
Do you have the fan installed the right way around?  Is the fan 
running?  Is the bias for the power module correct? - your DMM may read 
0.02 volts or 0.020 volts depending on the number of digits it displays.

73,
Don W3FPR

On 1/7/2011 6:25 PM, Colin VE3MSC wrote:
> I've built up all 3 XVs, and find the 432 the hottest of the bunch.
> What are you doing to manage the heat ?  My output power drops and
> the case hits over 60C / 140F if I run for a minute at about
> 10W.  (Attenuator not a factor as driving at low level).
> VE3MSC Colin
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Re: [Elecraft] OT: LDE defined

[Guy Olinger K2AV]

At NY4A multiop, probably in the ARRL DX some years back, on 40
meters, with the antenna a monster 5 element full spaced quad on a 220
foot catenary, I sent TEST NY4A NY4A, and after a very slight pause
heard clearly at S8 or S9, TEST NY4A NY4A.  I was sure someone was
just trying to interfere on the frequency, but it happened
consistently.  I finally sent a miscellaneous string of random dits
and dahs from the paddle, with no spaces, for about 5 seconds.  I
heard the string start up during the QSK, and it continued for another
2 seconds or so after I let up.

By that time I was on the speaker, and I had witnesses to what
happened.  We all settled on LDE and got back to the contest.  The LDE
got weaker and weaker (but not quicker or slower) and faded out in
about ten minutes.

So nobody has to convince me about LDEs any more :>)

73, Guy.
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Re: [Elecraft] XV smokin' hot

[Amateur Radio Operator N5GE]

Colin,

I have one of those and mine never gets that hot.  Are you sure the fan is
working correctly?  Are the openings for the fan clear of obstructions?

73,

Tom Childers
Radio Amateur N5GE
Licensed since 1976
QCWA Life Member 35102
ARRL Life Member
Retired Professional
C# Software developer
http://www.n5ge.net

On Fri, 07 Jan 2011 18:25:02 -0500, Colin VE3MSC   wrote:

>I've built up all 3 XVs, and find the 432 the hottest of the bunch. 
>What are you doing to manage the heat ?  My output power drops and 
>the case hits over 60C / 140F if I run for a minute at about 
>10W.  (Attenuator not a factor as driving at low level).
>VE3MSC Colin
>
>
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Re: [Elecraft] OT: LDE defined

[Bill W4ZV]

k2zf50 wrote:
> 
> If I am not mistaken, the original post was in reference to 80 meters. I
> may be wrong, but I am not aware of long path on that band. 
> Jim Douglas  K2ZF
> 

Long path is an everyday occurrence on 80 during the winter.  Listen
tomorrow morning around 11-1200z for XU7ACY coming via long path from the
SSW direction, or around 22-2300z coming via long path from the SSE
direction.

73,  Bill

-- 
View this message in context: 
http://elecraft.365791.n2.nabble.com/OT-LDE-defined-tp5900460p5901608.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] [K3] Err 12v

[Randy Moore]

I am working on an friends K3 (#4446), recently purchased used.  When I 
got it, Power-On resulted in "ERR DSE." Firmware load failed, so I did 
EEINIT, and then the firmware (4.22) loaded correctly.  After going 
through filter setups to match the on-board filters, things seemed to be 
working correctly.  But then I tried to increase power beyond 12w, and 
now I get the "ERR 12V", which my friend had seen before.  When that 
error occurs, the KPA3 fans come on.  The manual says to reset the 
circuit breaker, but it wasn't tripped.  Just for kicks, I tried to do 
the Tx Gain Calibration through the K3 Utility (dummy load attached), 
and even at the 5w level, it fails.

I need some advice on how to proceed.

Tnx es 73,
Randy, KS4L
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[Elecraft] [K3] ERR 12v

[Randy Moore]

I am working on an friends K3 (#4446), recently purchased used.  When I 
got it, Power-On resulted in "ERR DSE." Firmware load failed, so I did 
EEINIT, and then the firmware loaded correctly.  After going through 
filter setups to match the on-board filters, things seemed to be working 
correctly.  But then I tried to increase power beyond 12w, and now I get 
the "ERR 12V", which my friend had seen before.  When that error occurs, 
the KPA3 fans come on.  Just for kicks, I tried to do the Tx Gain 
Calibration through the K3 Utility (dummy load attached), and even at 
the 5w level, it fails.

The seller of this K3 says none of this was happening before he shipped 
the unit.

I need some advice on how to proceed.

Tnx es 73,
Randy, KS4L
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Re: [Elecraft] XV smokin' hot

[Colin VE3MSC]

At 07:20 PM 2011-01-07, Don Wilhelm wrote:
>It should not get that hot that fast.
>Do you have the fan installed the right way around?
>Is the fan running?

Its pulling air up from the bottom, and blowing air up. It comes out 
the holes above the attenuator resistors.

>   Is the bias for the power module correct? - your DMM may read 
> 0.02 volts or 0.020 volts depending on the number of digits it displays.

It was running way hot at a bias of 0.0200, and I slightly increased 
it and subsequently got more output and less heat.  The manual said 
to look for 3-5V on VGG, and I'm only seeing about 2.25 (at bias 
0.02) and 2.4 at my current bias level.
The current consumption is less than 4A at about 13.6V.
I should mention am running it continuous (1min on/off) (not SSB) as 
I do a lot of digital work.

>On 1/7/2011 6:25 PM, Colin VE3MSC wrote:
>>I've built up all 3 XVs, and find the 432 the hottest of the bunch.
>>What are you doing to manage the heat ?  My output power drops and
>>the case hits over 60C / 140F if I run for a minute at about
>>10W.  (Attenuator not a factor as driving at low level).
>>VE3MSC Colin


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[Elecraft] Getting a buzz, the wrong way

[Tony Estep]

I dragged my scope up to the shack to measure the voltage on antenna A when
I transmit on antenna B. I got the answer to that, but I also got a look at
a sorry phenomenon that probably affects a lot of others on this reflector.

If you have a wire antenna, disconnect it, put 50 ohms across the coax and
hook it to your scope. If you are like me, you will see a hideous waveform
of mixed harmonics of 60 hz, along with a witch's brew of various components
of hash and buzz. And not a small amount, either; I have more than 200 mV
RMS of that crap coming in on one of my antennas. It's like a vlf 1mW qrpp
transmitter feeding directly into your receiver, while you're trying to
listen to HF. And I live in a fairly sparse suburban neighborhood -- it has
to be worse as you move in closer to town. Of course, 99.9% of it doesn't
make it through the bandpass filters in the rx, but there are just enough of
those evil buzzy harmonics that do get in, and end up right on top of the
weak signals we're trying to hear. I guess we all know that the noise is
there, but seeing it on your scope with such a pronounced amplitude is a sad
experience.

73,
Tony KT0NY
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Re: [Elecraft] Getting a buzz, the wrong way

[Mike WA8BXN]

Tony, 
 
I think its closer to 0% of the 60 Hz stuff will really make it into a good
receiver. Take a look with your scope at what gets past the first tuned
circuit of a receiver. Noise that you hear in a receiver is really at the
frequency you are tuned to, not a harmonic of 60 Hz. Some simple receiver
circuits can hum on signals but I think the effect is for a reason different
from picking up 60 Hz on the antenna. 
 
 
73 - Mike WA8BXN 
---Original Message--- 
 
From: Tony Estep 
Date: 1/7/2011 10:05:06 PM 
To: Elecraft 
Subject: [Elecraft] Getting a buzz, the wrong way 
 
I dragged my scope up to the shack to measure the voltage on antenna A when 
I transmit on antenna B. I got the answer to that, but I also got a look at 
A sorry phenomenon that probably affects a lot of others on this reflector. 
 
If you have a wire antenna, disconnect it, put 50 ohms across the coax and 
Hook it to your scope. If you are like me, you will see a hideous waveform 
Of mixed harmonics of 60 Hz, along with a witch's brew of various components

Of hash and buzz. And not a small amount, either; I have more than 200 mV 
RMS of that crap coming in on one of my antennas. It's like a vlf 1mW qrpp 
Transmitter feeding directly into your receiver, while you're trying to 
Listen to HF. And I live in a fairly sparse suburban neighborhood -- it has 
To be worse as you move in closer to town. Of course, 99.9% of it doesn't 
Make it through the bandpass filters in the rx, but there are just enough of

Those evil buzzy harmonics that do get in, and end up right on top of the 
Weak signals we're trying to hear. I guess we all know that the noise is 
There, but seeing it on your scope with such a pronounced amplitude is a sad

Experience. 
 
73, 
Tony KT0NY 
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Re: [Elecraft] K3 Getting a buzz, the wrong way

[Fred Jensen]

I only did this twice.  The first time was pretty discouraging, I'm a 
little less than 200 km from the old Middletown CA LORAN-C station, and 
I was seeing around a half a volt of very obvious LORAN pulses.  It 
didn't affect me on 160 directly, but ... the USCG shut down LORAN-C in 
2009-2010, and now the K3 NB works great on 160.  Never did before.  I 
remember as a kid, in So. Central Los Angeles, our TV antennas brought 
the 300-ohm twinlead down to a window where it connected to a lightning 
arrestor, and then went inside.  You could put your fingers across the 
two terminals and feel the buzz.  You didn't want to lick your fingers 
first :-)  Without LORAN-C, my noise peaks are running around 100-150mv, 
we're in a moderately rural area.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org

On 1/7/2011 7:04 PM, Tony Estep wrote:

> If you have a wire antenna, disconnect it, put 50 ohms across the coax and
> hook it to your scope. If you are like me, you will see a hideous waveform
> of mixed harmonics of 60 hz, along with a witch's brew of various components
> of hash and buzz. And not a small amount, either; I have more than 200 mV
> RMS of that crap coming in on one of my antennas.
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Re: [Elecraft] Getting a buzz, the wrong way

[Don Wilhelm]

  Tony,

That is the reason receivers have bandpass filters - to filter out all 
that off-frequency trash.
Yes, there is a lot of stuff that can be seen on any antenna.  I see 
much of the same in my very sparely populated suburban/rural area - I 
cannot see any neighbor's house and I am sitting in the middle of 11 
acres with a 1/4 mile driveway.

If you want a better picture, put a bandpass filter for the band of 
interest between the antenna and the 'scope, and you should see a much 
more clear picture of what the receiver is "seeing".

73,
Don W3FPR

On 1/7/2011 10:04 PM, Tony Estep wrote:
> I dragged my scope up to the shack to measure the voltage on antenna A when
> I transmit on antenna B. I got the answer to that, but I also got a look at
> a sorry phenomenon that probably affects a lot of others on this reflector.
>
> If you have a wire antenna, disconnect it, put 50 ohms across the coax and
> hook it to your scope. If you are like me, you will see a hideous waveform
> of mixed harmonics of 60 hz, along with a witch's brew of various components
> of hash and buzz. And not a small amount, either; I have more than 200 mV
> RMS of that crap coming in on one of my antennas. It's like a vlf 1mW qrpp
> transmitter feeding directly into your receiver, while you're trying to
> listen to HF. And I live in a fairly sparse suburban neighborhood -- it has
> to be worse as you move in closer to town. Of course, 99.9% of it doesn't
> make it through the bandpass filters in the rx, but there are just enough of
> those evil buzzy harmonics that do get in, and end up right on top of the
> weak signals we're trying to hear. I guess we all know that the noise is
> there, but seeing it on your scope with such a pronounced amplitude is a sad
> experience.
>
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