Date   

Re: [Elecraft_K3] k3dspupgrd

David Kowalewski <djkowalewski@...>
 

Thanks George for the reply, I also ride and the hearing is'nt what it use to be either! I like the K3 a lot, I just am after the biggest bang for my buck when it comes to mods, I only work CW and am more a casual operator. Thanks again George
73’s
WA2OXZ 
Dave 

On Aug 16, 2016, at 10:24 AM, 'Gmail - George' gdanner12@... [Elecraft_K3] <Elecraft_K3@...> wrote:


I did the upgrade by swapping out boards.
 
My recall = The major change was the addition of a low pass filter to eliminate a “leak through” of the D to A clock.
At the time, there were complaints by several users that there was a high frequency noise in the K3 that was tiring when using the K3 for long periods.
Also improved the low freq response of the audio – don’t remember the complaint.
 
As a pilot & motorcyclist of more than 40 years, my hearing at high frequencies is limited; so I did not see a significant difference between the 2 DSP boards. If I had been in my 20s or 30s, I probably would have noticed the change.
When I went to work at that age, I would hear the TV monitors 15 kHz singing until a bit into my shift when I became accustomed to the sound.
 
I would recommend contacting Elecraft service to determine if the upgrade is worth the cost.
 
73 George AI4VZ
 
 

I think the enhancements were audio related. If you have no complaints, it may not be worth it.
 
From what I remember, comments have been a mixed bag.
 
73
Mike R

I have an older K3, s/n 1312 (10/2008), and I'm thinking about purchasing the K3DSPUPGD, trying to find out if it's worth it or not. wondering if I will notice a change in the receiver performance or audio. Having a hard time finding reviews on that enhancement. Your input is appreciated.




Displaying second receiver RTTY text during split operation

Jim Pyle
 

I recently purchased a keyboard to plug into my P3 and used it for RTTY, displaying text on the second monitor. When the station I was copying went to split operation, I wonder if it is possible to display text from both receivers simultaneously.  Has anyone done this and if so how.


Jim, AA8OY


Re: [Elecraft_K3] Re: k3dspupgrd

David Kowalewski <djkowalewski@...>
 

Hi Bruce,
 Thanks for the reply, I seen one review of this mod from the Nabble site, they said the audio quality was deeper and warmer sounding, wonder if you experienced the same, noise levels here are on the low side, I operate CW, no contesting, I do like a good sounding audio, I heard a Drake receiver one time and that was like music to your ears! I just hate to spend the $ on something if it really doesn’t have much benefit. So I guess I’m still on the fence.

 73’s
WA2OXZ
Dave

 

On Aug 16, 2016, at 1:43 PM, brucemacb@... [Elecraft_K3] wrote:

Good afternoon Harley


I have both an older K3 (serial number 670) and a new K3S so I've had the chance to compare both in an Urban environment and a Countryside one. The only mods I've done on the K3 is upgrade of the main DSP board.

In my Urban environment, I honestly did not notice any difference between the RX performance of either radio. I have high electrical noise levels and on 80M that runs at about S8. 

In my Countryside environment then I did notice a significant difference.
The 80M noise level is S2 (as a comparison) and the K3S was significantly better at resolving weak signals (I'm a QRP operator so this is important to me) The K3S also sounded 'cleaner' when listening on headphones.

In both cases I operated CW, SSB and DATA contests.

I know that's a bit of a rough and ready comparison, but my one line summary would be: 
  • Low background noise environment -- upgrade. 
  • High background noise environment, save your money.
73 Bruce G4ABX



RX observation

barry NF1O
 

During the WAE contest this past weekend (Which I was not participating in) I got an opportunity to really hear how good the K3 is (with new synths)
I happened upon a Big gun from nearby that was about 30 over 9 and another station about 350 Hz away that was about S7. I was able to copy either perfectly with only some key clicks from the big gun.
Just to see, I swapped the antenna to my backup radio, a Yaesu FT847 and could copy Big gun ok but the station 350 Hz away was completely wiped.
This is why I am an Elecraft fan.
I have a 400Hz roofer and was at about 150 with the DSP.
73
Barry
NF1O


Re: k3dspupgrd

g4abx
 

Good afternoon Harley

I have both an older K3 (serial number 670) and a new K3S so I've had the chance to compare both in an Urban environment and a Countryside one. The only mods I've done on the K3 is upgrade of the main DSP board.

In my Urban environment, I honestly did not notice any difference between the RX performance of either radio. I have high electrical noise levels and on 80M that runs at about S8. 

In my Countryside environment then I did notice a significant difference.
The 80M noise level is S2 (as a comparison) and the K3S was significantly better at resolving weak signals (I'm a QRP operator so this is important to me) The K3S also sounded 'cleaner' when listening on headphones.

In both cases I operated CW, SSB and DATA contests.

I know that's a bit of a rough and ready comparison, but my one line summary would be: 
  • Low background noise environment -- upgrade. 
  • High background noise environment, save your money.
73 Bruce G4ABX


Re: [Elecraft_K3] k3dspupgrd

George Danner
 

I did the upgrade by swapping out boards.
 
My recall = The major change was the addition of a low pass filter to eliminate a “leak through” of the D to A clock.
At the time, there were complaints by several users that there was a high frequency noise in the K3 that was tiring when using the K3 for long periods.
Also improved the low freq response of the audio – don’t remember the complaint.
 
As a pilot & motorcyclist of more than 40 years, my hearing at high frequencies is limited; so I did not see a significant difference between the 2 DSP boards. If I had been in my 20s or 30s, I probably would have noticed the change.
When I went to work at that age, I would hear the TV monitors 15 kHz singing until a bit into my shift when I became accustomed to the sound.
 
I would recommend contacting Elecraft service to determine if the upgrade is worth the cost.
 
73 George AI4VZ
 
 

I think the enhancements were audio related. If you have no complaints, it may not be worth it.
 
From what I remember, comments have been a mixed bag.
 
73
Mike R

I have an older K3, s/n 1312 (10/2008), and I'm thinking about purchasing the K3DSPUPGD, trying to find out if it's worth it or not. wondering if I will notice a change in the receiver performance or audio. Having a hard time finding reviews on that enhancement. Your input is appreciated.


Re: [Elecraft_K3] k3dspupgrd

mikerodgerske5gbc
 

I think the enhancements were audio related. If you have no complaints, it may not be worth it. 

From what I remember, comments have been a mixed bag. 

73
Mike R

Find me on "Zello", a walkie talkie or handi talkie type app. I'm listed as KE5GBC. I'm mostly on late at night. 

On Aug 15, 2016, at 6:24 PM, "djkowalewski@... [Elecraft_K3]" <Elecraft_K3@...> wrote:

 

I have an older K3, s/n 1312 (10/2008), and I'm thinking about purchasing the K3DSPUPGD, trying to find out if it's worth it or not. wondering if I will notice a change in the receiver performance or audio. Having a hard time finding reviews on that enhancement. Your input is appreciated.


k3dspupgrd

djkowalewski@...
 

I have an older K3, s/n 1312 (10/2008), and I'm thinking about purchasing the K3DSPUPGD, trying to find out if it's worth it or not. wondering if I will notice a change in the receiver performance or audio. Having a hard time finding reviews on that enhancement. Your input is appreciated.


k3dspupgrd

djkowalewski@...
 

I have an older K3, s/n 1312 (10/2008), and I'm thinking about purchasing the K3DSPUPGD, trying to find out if it's worth it or not. wondering if I will notice a change in the receiver performance or audio. Having a hard time finding reviews on that enhancement. Your input is appreciated.


Re: [Elecraft_K3] Connections K3S-StepIr-Expert1.3

Ed Pflueger
 

This is what is on Page 20 of the manual.  Hope it helps.

 

Ed… AB4IQ

 

From: Elecraft_K3@... [mailto:Elecraft_K3@...]
Sent: Monday, August 15, 2016 2:33 AM
To: Elecraft_K3@...
Subject: [Elecraft_K3] Connections K3S-StepIr-Expert1.3

 

 

Does anyone have a diagram that i can following making up a cable for the new K3S that is coming at the weekend?

I am planning to use USB to the computer and band data to the linear.

thanks in advance for the help

Trevor
2EØLDZ

 


Connections K3S-StepIr-Expert1.3

trevor clapp
 

Does anyone have a diagram that i can following making up a cable for the new K3S that is coming at the weekend?

I am planning to use USB to the computer and band data to the linear.

thanks in advance for the help

Trevor
2EØLDZ



Re: [Elecraft_K3] K3 to Lp-pan

Bob Darlington <rdarlington@...>
 

I have an LP_PAN2 and Xonar U5 and  K3S.  

I see your other mail, looking for help connecting.

You're welcome to mail me privately and I'm happy to walk you through any of this.  

Basically, IF port on the back of the rig goes to the IF port on the LP_PAN box.   That connects to a sound card.  I use Win4k3Suite with it, however I recently switched to using an SDRPlay.

-Bob

On Sat, Aug 13, 2016 at 6:57 AM, Kevin Gray k8su@... [Elecraft_K3] <Elecraft_K3@...> wrote:
 

Sorry I just posted and forgot my name and call.

Looking for someone that has used the Lp-pan and K3

Thanks

Kevin
K8SU




Re: [Elecraft_K3] That again?

Bob K6UJ <k6uj@...>
 

Before the flames hit......... :-)
Keep up the videos Bob, great stuff !

73,
Bob
K6UJ




On 8/12/16 3:23 PM, whpmotorsports@... [Elecraft_K3] wrote:
 

Guys, 

At the risk of getting flamed again like the last time I brought this up on the group, I've broached the subject of whats next in the Elecraft world on this weeks episode of K6UDA Radio. 

https://youtu.be/Rw40bVHMDbM

Enjoy,


73 Bob-K6UDA




K3 to Lp-pan

Kevin Gray <k8su@...>
 

Sorry I just posted and forgot my name and call.


Looking for someone that has used the Lp-pan and K3


Thanks


Kevin
K8SU


K3 and LP-Pan connection

Kevin Gray <k8su@...>
 

Just got a K3 and looking for some help in connecting.




Kevin


That again?

Bob B - KJ6MOS
 

Guys, 

At the risk of getting flamed again like the last time I brought this up on the group, I've broached the subject of whats next in the Elecraft world on this weeks episode of K6UDA Radio. 

https://youtu.be/Rw40bVHMDbM

Enjoy,


73 Bob-K6UDA



Re: [Elecraft_K3] Re: OT: Li-on versatile battery packs

Richard Fjeld <rpfjeld@...>
 

Ignacy,

I'm going to set up some pics on Dropbox and include a link at the bottom of this. I doubt if pics are allowed on Yahoo. If so, let me know. 

When my research into the Li-on jump start units indicated a lot of mis-representation I decided to simply use this homebrew battery as a 12 Volt power source with the three cells, and a possible unit to *boost* a vehicle battery by temporarily adding a fourth cell.  It is not a large battery, but it is about three times larger in capacity than the ones being discovered by the folks writing the negative reviews.  These could be built in parallel for more power, but I'm not interested in doing that.  When the picture was taken, I had not thought about using the handy connector pictured.

I have found that the 3.7 volt Li-on batteries are 4.2 volts when charged.  So three of them total 12.6 volts.  Four equal 16.8 volts.  I use a four cell battery holder, and I can swing the wiring in the last cell to add the forth cell in series if I want to try to boost a vehicle battery.  I use the word 'boost' as I haven't tried it to see if it will help start a vehicle, and that will depend a lot upon the condition of the vehicle battery. 

It seems ridiculous to imagine using something like this to start, or boost, a vehicle.  But we have both eluded to it, that if one calculates the CCA's, it may have enough for a few seconds.  I haven't bothered to because I suspect mathematically it will.  I would not want to trust this too much.

As you can see, I could use a smaller enclosure, but this was handy and stores my extra cords.  I don't remember what the total cost was, but it wasn't much.  I bought things separately, so I lost track, but I think it was less than $15, maybe $10.
 
I found a clever device to use instead of wire nuts, and that allows me to change the wiring easily.  It is about the size of a nickle. I can tell you not to get your finger in the way of the lever when it is closing.  If you do, it will get your attention. It may cause some Army talk.

I will include a pic of that also.  See the link below. 

https://www.dropbox.com/s/x3ot0e7zvn71s7s/0314162023a.jpg?dl=0

Dick, n0ce




On 8/11/2016 2:13 PM, no9e@... [Elecraft_K3] wrote:
 

The booster is most likely a low current battery that supplies enough charge in a minute to allow 1-2 sec crank. 


A 20Ah lead acid battery weighs 14 lb. A 20Ah LiFePO3 battery weighs 7 lb and costs $120 at batteryspace.com. I have one and it works well. Not sure howm much your 9.8Ah batteries weigh.

One can run a K3 from a 10Ah Li-Ion battery alone. Just connect through MFJ line conditioner (= supercapacitors), which average the load. 

Ignacy, NO9E



Re: OT: Li-on versatile battery packs

Ignacy Misztal
 

The booster is most likely a low current battery that supplies enough charge in a minute to allow 1-2 sec crank. 

A 20Ah lead acid battery weighs 14 lb. A 20Ah LiFePO3 battery weighs 7 lb and costs $120 at batteryspace.com. I have one and it works well. Not sure howm much your 9.8Ah batteries weigh.

One can run a K3 from a 10Ah Li-Ion battery alone. Just connect through MFJ line conditioner (= supercapacitors), which average the load. 

Ignacy, NO9E


Re: [Elecraft_K3] OT: Li-on versatile battery packs

Richard Fjeld <rpfjeld@...>
 

Hello Dave,

That is the kind of information I am glad to receive.

Thank you,

Dick, n0ce


On 8/6/2016 11:33 PM, 'w7aqk' w7aqk@... [Elecraft_K3] wrote:
 

Richard and All,
 
I suppose your heart is set on something LI-on, but I’ve not yet been too happy with the price for something like that which seemed like a good buy.  So, I’m still into lead-acid boosters.  One I’ve had for several years seemed like it might be going soft, and I happened to see a Costco “bargain”.  It is a CAT CJ100CP, which supposedly sells for upwards of $150, but Costco had it for $80.  What really caught my eye about this one is that it is a combo unit—battery booster, 120VAC inverter, and compressor.  It also has a 5 V. outlet for charging cell phones, etc. 
 
Well, the great thing about Costco is that, if you don’t like something you can take it back for a refund without any hassle.  I don’t take unfair advantage of that policy, but there have been a couple of times when I did get a “lemon”, and they never flinched at giving me a refund. 
 
This thing isn’t exactly tiny, or light weight either, but it’s not much bigger than my last one.  It has a 19 ah lead acid battery, so it’s not wimpy!  When I travel I like to carry one anyway, mainly for a 12 V. power source.  I also usually carry a small compressor.  So, this actually allowed me to save on some space by just carrying the one unit.
 
We are currently on an extended trip in the NW, and as luck would have it, shortly after getting up here my car battery went “south” due to a bad cell.  This booster started the car right up, and in fact, I had to do that about 3 times before I got to a dealer to get a new battery.  I hadn’t recharged the booster in between either.  I’ve also been running my KX3 (at 10 watts) off of it a good bit, and the voltage has barely dropped.  I think I could easily get a full  QRP Field Day weekend out of this thing. 
 
Anyway, if this would suit your purpose, I think it may be a good value.  Other units that are less versatile cost nearly the same, and are less substantial. 
 
Dave W7AQK
 
 


Ham Radio: Field Day Follow Up and Wayne N6KR from Elecraft

mikerodgerske5gbc
 

30 minutes of Wayne talking about the kx2 at field day. The show is 60 min and Wayne gets the second half.  Audio only. It's possible you heard this already as it field day so several episodes old. Also I believe there was a link already to you k3 guys when it first aired. 

73
Mike R
Mobile Mike

Find me on "Zello", a walkie talkie or handi talkie type app. I'm listed as KE5GBC. I'm mostly on late at night. 

Begin forwarded message:

From: mikerodgerske5gbc@...
Date: August 10, 2016, 1:48:37 AM CDT
To: mike Rodgers <mikerodgerske5gbc@...>
Subject: Ham Radio: Field Day Follow Up and Wayne N6KR from Elecraft

Check out the 'Ham Radio 360' podcast.

I was listening to the episode 'Ham Radio: Field Day Follow Up and Wayne N6KR from Elecraft' and thought you might enjoy it
Direct link to the file here

If you have iCatcher! for your iOS device you can use this link iCatcher Import Link

Web: Ham Radio 360

Feed: Podcast

App Store: iCatcher!


Find me on "Zello", a walkie talkie or handi talkie type app. I'm listed as KE5GBC. I'm mostly on late at night. 

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