Re: [Elecraft] Oscilloscope recs

2020-12-17 Thread Josh Fiden 
Funny! 59GHz bandwidth, 160G/sec sample rate. If $512,392 (base model) is in 
the budget, why not?!?

73
Josh W6XU

Sent from my iPad

> 
>> On Dec 17, 2020, at 4:04 PM, John Marvin  wrote:
>> 
>> Well, if budget permits, I would recommend the Keysight DSAZ594A. This would 
>> be especially useful on some of the higher amateur radio bands.
>> 

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Re: [Elecraft] Oscilloscope recs

2020-12-17 Thread Walter Underwood 
Yeah, those are the scopes where HP had to design new coax connectors because 
existing ones were limiting the bandwidth of the scopes. And that was back in 
the 1980s.

For a while, I was working on the same floor as the HP Labs team making those 
ADCs, but the earthquake sent us to different buildings.

Ken Poulton has some nice papers on how those actually work: 
http://poulton.net/papers.html

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Dec 17, 2020, at 4:04 PM, John Marvin  wrote:
> 
> Well, if budget permits, I would recommend the Keysight DSAZ594A. This would 
> be especially useful on some of the higher amateur radio bands.
> 
> 73,
> John AC0ZG
> 
> On 12/9/2020 7:31 AM, inventor61 wrote:
>> I would be remiss, as a Keysight employee, to not mention the option of
>> going with something like the Keysight model EDUX1052A (available from
>> numerous vendors such as Mouser) or, if the budget permits and one wants to
>> do things like sweep filters, have an integrated bench signal generator,
>> serial data protocol analyser, etc., the DSOX1204G (which I have).
>> 
>> Keysight is the test equipment company formerly known by many as
>> Hewlett-Packard, today headquartered in Santa Rosa, CA.
>> 
>> Steve KZ1X
>> Celebrating 21 years of daily Elecraft reflector use today
>> Owner / Builder of K2 #771,
>> The World's Most Experienced Elecraft
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> 
> 
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Re: [Elecraft] Oscilloscope recs

2020-12-17 Thread John Marvin 
Well, if budget permits, I would recommend the Keysight DSAZ594A. This 
would be especially useful on some of the higher amateur radio bands.


73,
John AC0ZG

On 12/9/2020 7:31 AM, inventor61 wrote:

I would be remiss, as a Keysight employee, to not mention the option of
going with something like the Keysight model EDUX1052A (available from
numerous vendors such as Mouser) or, if the budget permits and one wants to
do things like sweep filters, have an integrated bench signal generator,
serial data protocol analyser, etc., the DSOX1204G (which I have).

Keysight is the test equipment company formerly known by many as
Hewlett-Packard, today headquartered in Santa Rosa, CA.

Steve KZ1X
Celebrating 21 years of daily Elecraft reflector use today
Owner / Builder of K2 #771,
The World's Most Experienced Elecraft
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[Elecraft] Buying a used K3(s)

2020-12-17 Thread Frederick Dwight 
Before buying my K3S a few years ago I had never owned a pan adaptor or 
considered it necessary.  Now I find my P3 a very useful accessory and would 
not want to be without it for my home station.  One example: up here in Alaska 
at 61 degrees N, often most of the bands are “dead”.  I can go into the shack 
and quickly scroll through the bands and see if any signals are on the band.  
Typically if a signal shows up on the P3, it might be workable, but if it does 
not show up, probably not workable.  On bands like 160 meters with little 
activity, I can immediately see if it is even worth sitting down at the 
operating desk, or I may decide to watch TV, read, or go out skiing.  
Occasionally I dig out my microphone and operate SSB. Sometimes on a 75 meter 
net, I want to talk to another ham, so can see on my display that there is a 
(relatively) open frequency 13 KHz up, so just ask him to QSY up 13 so the net 
can continue on “it’s” frequency.  Also I have 2 or 3 antennas on some bands, 
with the P3 I can quickly see which works best and also that my RX array may be 
better for RX than my other antennas.  Also I can electronically rotate my RX 
array and quickly see which direction has the best S to S+N ratio, which is not 
always the setting for max signal.  I do not need a big, or colored display. 
You can set the P3 off to the side and not be distracted except when you need 
it. I set my P3 up to cover 50 KHz of a band so can see where or if there is 
any action.  Now if I only had a display weighing only a few ounces for my 
backpacking QRP rigs !  I really enjoy my K3S and have no plans to “upgrade” 
personally, even though budget is not an issue.
Enjoy your Elecraft rigs, I have 3 of them !  
Rick   KL7CW

Sent from Mail for Windows 10

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[Elecraft] SSB Net for 12-13-2020

2020-12-17 Thread Eric Lanzl 
Here is the list of stations for the last Sunday's net. Thanks again to all the 
wonderful help from the relay stations. 20 m. net is on Sundays at 14.303.5 at 
1800Z. 
Eric WB9JNZ


| Call | Name | State | Radio | Serial # | QRP | Notes |
|  |  |  |  |  | 
 |  |
| WB9JNZ | Eric | IL | K3 | 4017 | 
 | 
 |
| WM6P | Steve | GA | K3S | 11453 | 
 | Relay Station |
| NC0JW | Jim | CO | KX3 | 1356 | 
 | Relay Station |
| K8NU/7 | Carl | OH/WA | Yaesu FT | 2000 | 
 | 
 |
| N9CPD | Chuck | IL | Yaesu FT | 991 | 
 | 
 |
| W4DML | Doug | TN | K3 | 6433 | 
 | 
 |
| NS7P | Phil | OR | K3 | 1826 | 
 | Relay Station |
| ZL1PWD | Peter | NZ | K3 | 139 | 
 | 
 |
| KO5V | Jim | NM | K2/100 | 7225 | 
 | 
 |
| AE1E | Ken | NM | K3S | 11611 | 
 | 
 |
| W5SV | Dave | TX | K3 | 5354 | 
 | 
 |
| K7JG | John | WA | KX3 | 3519 | 
 | 
 |
| K7BRR | Bill | AZ | Yaesu | FTDX 101MP | 
 | 
 |
| KS6F | Guy  | CA | K3S | 10650 | 
 | 
 |
| KC1ACL | Steve | NM | KX3 | 10677 | 
 | 
 |
| N0MPM | Mike | IA | K3S | 10514 | 
 | 
 |
| W7REK | Glen | AZ | K3 | 2843 | 
 | 
 |
| KG7NCV | Dave | AZ | Yaesu | 991 | 
 | 
 |
| KE7HGE | Ken | WA | KX3/QRP | 4540 | 
 | 
 |
| KB9AVO | Paul | IN | K3S | 11103 | 
 | 
 |
| KM6ZX | Brian | CA | K2 | 6665 | 10 watts | 
 |
| KB7FD | Buzz | OR | K3S | 11568 | 
 | 
 |
| K4NNK/M | Gary | CA | KX3 | 11340 | 10 watts | 
 |
| AD5YW | Len | NM | K2 | 3964 | 
 | 
 |
| K1NW | Brian | RI | K3 | 4974 | 
 | 
 |
| N4NRW | Roger | SC | K3 | 1318 | 
 | 
 |
| W7QHD | Kurt | AZ | K2/100 | 1538 | 
 | 
 |
| W9PCS | Paul | WI | K3S | 11603 | 
 | 
 |
| K6VWE | Stan | MI | K3 | 650 | 
 | 
 |
| VE7XTA | Tom | BC | KX3 | 10393 | 
 | 
 |
| KX1A | David | NH | Kenwood  | TS 990 | 
 | 
 |
| KI6DL | Dennis  | ID | Kenwood  | TS 850 | 
 | 
 |
| K3UNX | John | AK | Icom | 718 | 
 | 
 |
| K5VPN | Victor | OK | Icom | 7300 | 
 | 
 |
| KG7NCV | Dave | AZ | Yaesu | 991 | 
 | 
 |


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[Elecraft] Subject: K3s Notch Filter

2020-12-17 Thread Bernie and Cheryl 

Thanks Guys:

Of course, that was the right answer.  I thought, seeing the icon come on when 
I just hit the Notch button, that the Notch filter was active in the cw mode.  
I didn't realize I had to press and hold the button.

Once I held the button, the display for VFO-B changed to the HZ display, and 
boy that filter works great!

Thanks again for all your help.

73 de Bernie, KF0QS

Hi Bernie,
I think the trick is to press and hold the "NTCH" button to enter the manual
notch mode. If you only tap the button, even though the display reads "Manual"
and the icon appears, it is not really in the manual notch mode.
For example, my CW sidetone pitch is set to 560 Hz. If I tune a carrier to 560,
and fully engage the notch mode, I can completely null a carrier when I tune
VFO B to 560 Hz.
The other clue: If you only tap "NTCH", adjusting VFO B only displays
frequency, whereas pushing and holding will cause VFO B knob to display the
notch filter frequency.
Hope this helps.
73,
Jim - WS6X

-Original Message-
From: elecraft-boun...@mailman.qth.net On Behalf Of Bernie and Cheryl
Sent: Wednesday, December 16, 2020 1:16 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] K3s Notch Filter

Dear Folks:

I have a question about use of the Notch filter on my K3s.  I am primarily a CW
operator.  I understand that, in CW mode, the notch filter's operation is
manual, and you tune (adjust?) the filter using the VFO B knob (admittedly,
I've not tried it in USB or LSB mode, where I understand its operation is
automatic, unless you opt out).

I have tried using the filter in CW mode and can detect no effect whatsoever
while turning the VFO B knob.  I even tried it on the AM broadcast band, with
the rig in CW mode, and was unable to have any effect on the AM carrier.  For
what it is worth, the little indicator on the LCD display, with the two arrows,
does come on when I press the Notch filter button.

What am I doing wrong?  Thanks for any help you can give me.

73 de Bernie, KF0QS

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