[Elecraft] K4

[Ken Roberson via Elecraft]

I have 4 kids, I could give each another $1500.00 when I dieor I could buy 

A new K4 , Let’s see which should I do?
Ken K5DNL

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[Elecraft] XV-144

[Ken Roberson via Elecraft]

Hello all,
Anyone have a XV-144 for sale contact my via email - my email is good on 

QRZ - Thanks Ken K5DNL
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[Elecraft] 432 preamp for EME

[Ken Roberson via Elecraft]

Hello all,
I'm looking for a pre-amp for 432 mhz - working on EME station -
please contact me off list.
My email info is good on qrz dot com.
Thanks for the bandwidth.
73 Ken K5DNL

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[Elecraft] 70 cm beacon ?

[Ken Roberson via Elecraft]

Hello all,

I now have XV432 running with the K3 and trying to find asignal to test the rx,

Anyone know of a working satellite with a beacon or otherbeacon near Shawnee, 
Oklahoma

on 70 cm ? Not finding much activity here, Antenna to small forEME.

Using a small HB 10 ele now working on a 2X20 ele yagi.

Thanks agn 73 Ken K5DNL

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[Elecraft] W2- Sensor

[Ken Roberson via Elecraft]

Anyone have a W2 - DCV/U 200a_144-450 MHz UHF sensor for sale contact me.
My email is good on QRZ -- TU 73 Ken K5DNL
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[Elecraft] UHF - W2 Sensor

[Ken Roberson via Elecraft]

Anyone have a W2 - DCV/U 200a_144-450 MHz UHF sensor for sale contact me.
My email is good on QRZ -- TU 73 Ken K5DNL

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[Elecraft] W2 Sensor

[Ken Roberson via Elecraft]

Hello all,
I'm looking for a W2 VHF/UHF sensor - If you have one for sale contact me,
My email is good on QRZ,
Thanks 73 Ken K5DNL

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[Elecraft] XV-432 Xverter

[Ken Roberson via Elecraft]

Hello All,
Looking for a nice XV-432 at a reasonable price, My emailaddress is good on QRZ.

Thanks Ken K5DNL

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[Elecraft] XV432

[Ken Roberson via Elecraft]

Hello all,

Is the XV432 stable enough for EME digi modes?

Thanks agn 73 Ken K5DNL

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[Elecraft] K4

[Ken Roberson via Elecraft]

Hello all
Will the K4 have an input for a 10mhz GPS reference 

Thanks agn 73 Ken K5DNL

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[Elecraft] K3-KXV3B

[Ken Roberson via Elecraft]

Hello all
K3 with KXV3B installed – When in the tx mode is thetransverter input (rx) 
grounded ?
73 - Thanks agn Ken K5DNL

 

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[Elecraft] K3 xverter PWB

[Ken Roberson via Elecraft]

Hello all,
Anyone know if when txing thru the transverter board of the K3 if therx input 
in at ground ?
Thanks agn 73 Ken K5DNL


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Re: [Elecraft] Antenna tuners

[Ken Roberson via Elecraft]

 Dave - RRR - 73 Ken K5DNL

On Friday, July 17, 2020, 7:24:10 PM CDT, Dave Cole  wrote:  
 
 Tuners...  Tuners...  We don't need no stinking tuners...  Real men use 
antennas that don't need stinking tuners...

Sorry I had too...

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 7/17/20 4:34 PM, Ken Roberson via Elecraft wrote:
> 
> Antenna tuners
> 
> I never use an antenna tuner , on the MF and LF bands realmen use a 
> scopematch at the
> 
> Output of the Power Amp and a matching device at the base ofthe vertical 
> antenna – HI Hi.
> 
> 73 Ken K5DNL
> 
>  
> 
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Re: [Elecraft] Antenna tuners

[Ken Roberson via Elecraft]

 Kurt,
We are not tuning the antenna , we are matching the antenna to the coax at the 
base of the antenna.
73 Ken K5DNL

On Friday, July 17, 2020, 7:10:32 PM CDT, Kurt Pawlikowski 
 wrote:  
 
  
Ken: In some respects, a "matching device" at the base of the antenna is a 
tuner! {'-) It accomplishes the same function... {'-) k WB9FMC
 
 On 7/17/2020 6:34 PM, Ken Roberson via Elecraft wrote:
  
 Antenna tuners

I never use an antenna tuner , on the MF and LF bands realmen use a scopematch 
at the

Output of the Power Amp and a matching device at the base ofthe vertical 
antenna – HI Hi.

73 Ken K5DNL

 

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[Elecraft] Antenna tuners

[Ken Roberson via Elecraft]

Antenna tuners

I never use an antenna tuner , on the MF and LF bands realmen use a scopematch 
at the

Output of the Power Amp and a matching device at the base ofthe vertical 
antenna – HI Hi.

73 Ken K5DNL

 

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[Elecraft] Remote tuner

[Ken Roberson via Elecraft]

Hello all,
I use a remote for a 630M 60 ft vertical - more info on my web-site.
K5DNL dot com
73 Thanks Ken K5DNL

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Re: [Elecraft] Blasphemy maybe but looking for an honest assessment of the K2 vs. Icom 7300 ...

[Ken Roberson via Elecraft]

 
Randy,
I have owned lots of radio in my 59 years as a ham and my advisewould be a K3 
or K3s.I have two , one for HF and the other I use on 630 M with Homwbrew150 
watt power amp.
Photo on my web-site k5dnl dot com 

Thanks 73 Ken K5DNL
On Wednesday, October 9, 2019, 10:52:18 AM CDT, Kevin Cozens 
 wrote:  
 
 On 2019-10-09 3:03 a.m., Victor Rosenthal 4X6GP wrote:
> I don't know, Don. If he installs the KPA100 the lack of temperature 
> stability will be a serious issue, at least for digital modes. My experience 
> was that before installing the temperature compensation mod, the drift was 
> unacceptable even on CW. This was not a problem before the additional heat 
> generated by the KPA100.

If Randy would like to keep the K2 the Temperature Compensated PLL Reference 
Upgrade Kit (item #E850138 for $24.95) is still listed on the order form for 
K2 Revision A to B Upgrade page.

The information for that mod also suggests installation of the BFO mod kit 
(item BFOMDKT for $10.95) and a firmware update if the K2 has a firmware 
version less than v2.0.

Those are relatively inexpensive upgrades and worth doing to improve the K2 
if Randy doesn't want to go the full A/B upgrade path right away. I don't 
know which would be a better investment between the K2 and the 7300 as I 
know nothing about the 7300. One other thought to consider is the difference 
between having a radio you can fix yourself vs. one where you have to send 
it away to get fixed should something break.

-- 
Cheers!

Kevin.

http://www.ve3syb.ca/               | "Nerds make the shiny things that
https://www.patreon.com/KevinCozens | distract the mouth-breathers, and
                                    | that's why we're powerful"
Owner of Elecraft K2 #2172          |
#include     |            --Chris Hardwick
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[Elecraft] K3 - 630M band

[Ken Roberson via Elecraft]

K3 – 630M band

My first K3 a few years ago S/N number in the 1300 hundreds (Kit )has preformed

Like no other Ham xcver I had ever owned. My second K3 wasfactory built.

Both have been upgraded with mod’s to bring them up to K3sstatus.

Holding an experimental Licenses I have been operating the olderK3 on the 630M

 Band for many years, the0 dbm output is enough to drive my 630M pwr amp to 
100W.

For the past two weeks I have been experimenting with a newantenna for 630 
meters.

The folded unipole is a winner and with a small footprint.

There is more info on my web-site.

K5DNL dot com

Thanks 73 all Ken K5DNL

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Re: [Elecraft] Measuring SSB RMS Power

[Ken Roberson via Elecraft]

 Don , That may be peak to peak voltage squared decided by 400 for a 50 ohm 
load.
Thanks 73 Ken K5DNL

On Thursday, June 20, 2019, 9:30:46 AM CDT, Bob McGraw K4TAX 
 wrote:  
 
 Here is a paper on the topic. This covers the correct procedure. 

http://www.eng.auburn.edu/~troppel/courses/TIMS-manuals-r5/TIMS%20Experiment%20Manuals/Student_Text/Vol-A1/a1-12.pdf

73
Bob, K4TAX


Sent from my iPhone

> On Jun 20, 2019, at 8:38 AM, John Oppenheimer  wrote:
> 
> Using DL1 with Oscilloscope to measure KX3 SSB RMS power:
> 
> https://www.kn5l.net/ssbpower/
> 
> Question, is this technique correct?
> 
> John KN5L
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[Elecraft] Power supply

[Ken Roberson via Elecraft]

Hello all,
Been a ham for a few years and  I would take a little 

transformer hum over the noisy switching power supply fans any-day.
my 2 cents

Thanks 73 Ken K5DNL
Amateur Radio |K5DNL| 630M Amp for sale | Scopematch info | 630 Meter Power Amp 
| 630M station | Scopematch | 630M Remote tuner | Remote tuner | 630 Meters | 
630M Amplifier | 630 Meter Antenna

| 
| 
| 
|  |  |

 |

 |
| 
|  | 
Amateur Radio |K5DNL| 630M Amp for sale | Scopematch info | 630 Meter Po...

Amateur Radio web site, 630M Station , 630 Meters, 630M Vertical antenna, 630 
Meter Power Amp
 |

 |

 |





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Re: [Elecraft] SWR - does it matter?

[Ken Roberson via Elecraft]

 

If you want your antenna match to be correct use aScopeMatch as I describe on 
my 630M web-site.

Thanks 73 Ken K5DNL

www.k5dnl.com

On Wednesday, April 10, 2019, 9:03:48 AM CDT, Andy Durbin 
 wrote:  
 
 As a counter to those who are asserting that SWR 1.5:1 is a good enough match 
for an antenna system I offer measured data for the KPA500.

At 14.005 MHz my KPA500, when connected to a 1.44:1 SWR load (R37, X9), had a 
PA dissipation of over 500 watts when producing 400 watts RF output.  When the 
load was changed to 1.30:1 (R39, X3) the PA dissipation was about 410 watts.  
When the load was changed to SWR 1.07:1 (R49, X3) the PA dissipation was 
reduced to under 400 watts.  (The plots are far more informative than a text 
description but I can't post them here).

If you don't mind your KPA500 running hot, and are prepared to accept it 
shutting down with PA DISS fault, then 1.5:1 SWR may be good enough for you.  
I'd rather know the complex impedance of the antenna system load and avoid 
loads that result in high PA dissipation.

73,
Andy, k3wyc






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Re: [Elecraft] Test

[Ken Roberson via Elecraft]

 
Don , Same here - 73 Ken K5DNL
On Wednesday, April 3, 2019, 9:37:08 AM CDT, Don Wilhelm 
 wrote:  
 
 I have not seen any posts from the reflector today - quite unusual

Don W3FPR
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[Elecraft] K3 - 630 meters

[Ken Roberson via Elecraft]

Hello K3 owners,

For sale 630M 100W power Amp designed to work with K3 or K3s.

1 mw from the transverter output will drive this PWR-AMP to 100Woutput.

More info on my web-site k5dnl dot com.

73 Ken K5DNL

 
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Re: [Elecraft] KX3, QRP, /P, 80m, daylight

[Ken Roberson via Elecraft]

 

Joe,

Testing propagation on 80M in the daytime is a good project.

Often I test propagation on 630M in the daytime with a shortvertical.

A “ T “ antenna would be good for your test, if you can get enoughtop loading 
you

Would not need a base loading coil.

I ran 630M WSPR beacon last night , and was heard by manystations in EU.

73 Ken K5DNL

www.k5dnl.com 

On Thursday, January 10, 2019, 4:44:19 AM CST, J Chester 
 wrote:  
 
 I am planning to try this - the reason will become clear later. I want to use 
the KX3 in portable QRP operations on 80m, most probably during daylight hours.

Please, don’t tell me about the inefficiencies of short verticals on the low 
bands, or the propagation issues on 80m during daylight. These I understand. 
But I have a project in mind…..

My question is to ask if anyone on the list has ever tried this, and with what 
results? If any!

Thank you

73 de Joe M1MWD
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[Elecraft] 6M Meteor scatter

[Ken Roberson via Elecraft]

In 2005 I worked MS on 6 Meter and had a blast.This morning thought I would 
give it a try with low powerK3 @ 70 watts with 5el yagi made 4 QSO's
Thanks 73 all Ken K5DNL
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Re: [Elecraft] K3

[Ken Roberson via Elecraft]

OK Thanks All,
This K3 just came back from Elecraft last June - So u wud think that it wud 
have gold pini.
I will pull the front panel and check

Thanks agn everyone 73 Ken K5DNL

 

On Monday, July 30, 2018, 1:02:12 PM CDT, Grant Youngman 
 wrote:  
 
 It isn’t all that hard to tell if that’s the problem … pull the FP board, put 
a little (you don’t have to soak them) DeOxit on the pins and reseat it.  Or 
pull it and simply reseat it a time or two to wipe the contacts well.  Gold 
pins are good long term to prevent reoccurrence in several years, but there are 
other ways to skin the proverbial cat in the meantime.

I have my kit of gold pins sitting in reserve.  Put them in the amp connector 
to forestall a problem that hadn't occurred.  Have yet (since 2007) to have a 
need to put them on the FP board.  But tomorrow is another day. You never know 
:-)

Grant NQ5T

> On Jul 30, 2018, at 1:37 PM, Fred Jensen  wrote:
> 
> Do any of the other controls give unexpected results?  My very old K3 [#642] 
> developed that problem.  For example, tapping ATU TUNE might switch the AGC 
> from slow to fast instead of initiating an ATU cycle.  I found:
> 
> 1.  Tapping or holding really hard [hard enough that I had to hold the radio] 
> would give the expected action.
> 
> 2.  The effect was more common on controls I rarely used and much less common 
> on those I used all the time.
> 
> The K3 went to the Elecraft hospital a month ago for some other repairs, and 
> they replaced some connector pins with the gold-plated variety.  The above 
> described effect disappeared when the radio came home.
> 
> 73,
> 
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
> On 7/30/2018 8:15 AM, Ken Roberson via Elecraft wrote:
>> Hello all
>> 
>> This must be menu item on the K3 that I have not found.
>> 
>> When I push the tune button the display will change from the RFout meter to 
>> ALC
>> 
>> 
>> On the other K3 when pushing the tune button the display dose not change.
>> I prefer that the display not change.
>> 
>> 
>> Thanks 73 Ken K5DNL
>> __

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[Elecraft] K3

[Ken Roberson via Elecraft]

Hello all

This must be menu item on the K3 that I have not found.

When I push the tune button the display will change from the RFout meter to ALC 


On the other K3 when pushing the tune button the display dose not change.
I prefer that the display not change.


Thanks 73 Ken K5DNL
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[Elecraft] K3_Band limits

[Ken Roberson via Elecraft]

Hello all,

I have K3_Bandlimits 2-0-1.XEX , Is this firmware still good ?

Thanks everyone 73 Ken K5DNL


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[Elecraft] K3 - PA- Temp

[Ken Roberson via Elecraft]

Hello all,
I know its a little early, but i'm testing a delta loop for field day on 20 
meters.
The PA temp is running abt ( max ) 46 C @ 50 watts on FT-8 digi mode.
Is this ok ?
73 Ken K5DNL

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[Elecraft] K3 - 630 Meters

[Ken Roberson via Elecraft]

Running the K3 into 100w 630M Amp.I will be txing tonight on 630 meters running 
JT-9 and WSPR.Dial qrg = 474.2 khzSome info and photo of station on my web 
pagek5dnl dot comThanks 73 Ken K5DNL
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[Elecraft] K3_630 meter

[Ken Roberson via Elecraft]

Hello all,There is a photo of the 630 meter station on my web-site.Also info on 
antenna and remote tuner.
Thanks 73 Ken K5DNLwww.k5dnl.com
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Re: [Elecraft] K3S RX antenna switching questions

[Ken Roberson via Elecraft]

Also make sure that your rx antenna is not running over ground radials from tx 
antenna73 Ken K5DNL
 

On Tuesday, November 14, 2017, 12:57:10 PM CST, j...@kk9a.com 
 wrote:  
 
 I am surprised that the front end protection would kick on with that much
RX antenna spacing and only 50 watts unless there is another way RF is
getting into the shack. If that is what's happening I concur with W3FPR.
Another option would be a receiver overload protector such as
https://www.dxengineering.com/parts/dxe-rg-5000  .

John KK9A


Don Wilhelm wrote:

I suspect that increasing the TX Delay will *not* fix that problem.
Since at greater than 50 watts, you hear relays clicking indicates that
the K3S COR is being activated.
The solution is to either move your RX antenna further from the TX
antenna or use some device that disconnects or grounds the RX antenna
while transmitting.

73,
Don W3FPR

On 11/13/2017 7:26 PM, Steve Steltzer via Elecraft wrote:
> Here's the setup : 3 month old K3S. Full wave 80 mtr RX loop. Closest
point to TX antenna is around 200 ft. Over 50 watts I hear relays
clicking and stations have a hard time breaking in even using QRQ plus.
I assume the RX antenna is not switching fast enough and I'm getting 
milliseconds of high RF into the front end and protection relays are
kicking in???

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Re: [Elecraft] 630M

[Ken Roberson via Elecraft]

Ed , Thanks for your comments abt 630M wspr 2-way VK4YB and WG2XXM/K5DNL.
73 Ken K5DNL
 

On Friday, September 22, 2017 1:30 PM, Edward R Cole <kl...@acsalaska.net> 
wrote:
 

 Roger,

I'm guessing you are commenting on the DX contact between VK4YM and 
WG2XXM  using WSPR?
Most likely signal levels were way below noise for CW.

WSPR was designed to test propagation like a beacon and really isn't 
well suited to making contacts but it does get thru with a minimum of signal.

But CW has been mainstay on 630m and likely will remain so.  It is 
simple and effective requiring no computer skills.  During the period 
the ARRL Experimental Group tested operating on 600m and later on 
630m, QRSS was used for making longer weak-signal 
contacts.  "Reading" the super-slow CW was aided by computer display.

Other digital modes have been investigated and generally work better 
with weak-signals beyond the 250-300 mile limit of ground-wave.  I 
suspect conversational psk-31 will get used quite a bit, where new 
digital modes like FT8 will be used to make simple DX contacts with 
minimal exchange of callsign and signal reports.

But CW is not dead on 630m.  Just more choices which may be more 
effective.  By and large many operators in the Experimental Group 
were prior ship CW operators.

73, Ed - KL7UW, ex WD2XSH/45


Date: Fri, 22 Sep 2017 09:44:21 -0400
From: Roger D Johnson <n...@roadrunner.com>
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] 630M
Message-ID: <59c513b5.9010...@roadrunner.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

How ham radio has fallen. Incentive licensing, no code, and now, my computer
talks to your computer!

73, Roger


On 9/21/2017 10:58 AM, Wayne Burdick wrote:
 > Congratulations, Ken! How much power?
 >
 > Wayne
 > N6KR
 >
 >
 >> On Sep 21, 2017, at 4:40 AM, Ken Roberson via 
Elecraft<elecraft@mailman.qth.net>  wrote:
 >>
 >> 2-Way 630 meter WSPR decodes from VK4YB and WG2XXM 13441km.Rig K3 
with HB pwr amp and 60 ft vertical.
 >> 73 Ken K5DNL/WG2XXM


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

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[Elecraft] 630 meters -- K3

[Ken Roberson via Elecraft]

That’s right Australia to Oklahoma on 630 meters 13442 km.You can go to 
wsprnet.org , MF band and plug in the callsigns.My experimental call is 
WG2XXMBoth stations running 5 watts erp.The rig is a K3 with home brew power 
amp and no rx pre-amp.Antenna is 60 ft vertical with top and bottom loading.
Tu 73 Ken K5DNL
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Re: [Elecraft] 630M

[Ken Roberson via Elecraft]

Wayne TU - Roger and I were both running 5 watts erpI'm not running a pre-amp , 
not sure if the pre-amp in the K3 works that low.The antenna is 60 ft vertical 
with top and bottom loading only 32 radials.
Ken K5DNL/WG2XXM
 

On Thursday, September 21, 2017 10:00 AM, Wayne Burdick <n...@elecraft.com> 
wrote:
 

 Congratulations, Ken! How much power?

Wayne
N6KR


> On Sep 21, 2017, at 4:40 AM, Ken Roberson via Elecraft 
> <elecraft@mailman.qth.net> wrote:
> 
> 2-Way 630 meter WSPR decodes from VK4YB and WG2XXM 13441km.Rig K3 with HB pwr 
> amp and 60 ft vertical.
> 73 Ken K5DNL/WG2XXM
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[Elecraft] 630M

[Ken Roberson via Elecraft]

2-Way 630 meter WSPR decodes from VK4YB and WG2XXM 13441km.Rig K3 with HB pwr 
amp and 60 ft vertical.
73 Ken K5DNL/WG2XXM
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[Elecraft] 630M Antenna

[Ken Roberson via Elecraft]

For those interested in 630 meter , I use a 60 ft vertical.Photo on qrz dot com 

73 Ken   K5DNL/ WG2XXM
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Re: [Elecraft] Eclipse Beaconing

[Ken Roberson via Elecraft]

Doug,
I plan to run my 630M wspr beacon the day of the eclipse.
73 Ken K5DNL/WG2XXM
 

On Friday, August 11, 2017 3:03 PM, Doug Millar via Elecraft 
 wrote:
 

 Is anyone else planning to do eclipse center line beaconing?  What is a good 
frequency?   Doug 
 
K6JEY
drzarko...@yahoo.com
562 810 3989  cell/text

 
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Re: [Elecraft] New Digital Mode and K3S Frequency Accuracy

[Ken Roberson via Elecraft]

Just a note guys, Myself and many others are on 630 meters every night.John ( 
WH2XIQ) and Myself (WG2XXM) made the first FT8 qso on 630 m .The mode is very 
fast almost to fast hi hi.Set your dial to 474.2 upper side band or digi mode , 
my signal will be @ 1510 hz.on the wspr water water fall.73 all Ken K5DNL/WG2XXM


 

On Sunday, July 16, 2017 12:53 PM, Fred Jensen  wrote:
 

 Just kidding Jim, I exercised several of the WSJT modes some time back 
and was amazed at the copy on signals I simply couldn't hear [although 
generally, most were strong enough to hear].  With the new synth, I even 
got up in the middle of the night to see if I could hear the signals 
WSPR was decoding on 474 Kcs, but never heard a peep.  The constrained 
QSO format of JT65/JT9 and the time it took just wasn't attractive for 
me.  To each his own.

73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 7/16/17 10:28 AM, Jim Brown wrote:
> On 7/15/2017 6:58 PM, Fred Jensen wrote:
>> 15 sec vs 47 sec is a 68% decrease in QSO time.  So, I only have to 
>> wait for 32% of the paint to dry? [:-) 
>
> Hi Fred,
>
> I spent a lot of time with FT8 yesterday in CQ VHF, and found it to be 
> pretty fast paced. I'd say the rate was at least as good as QRP SSB 
> during a DX contest! I made 47 QSOs yesterday, only one on SSB, none 
> on CW. The FT8 window was jumping as long as the band was open, and 
> I'd guess that at least half of the QSOs would not have been possible 
> on SSB, and many not on CW. And I picked up four new grids.
>
> 73, Jim K9YC

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Re: [Elecraft] WSPR2.0 at 277.2KHz

[Ken Roberson via Elecraft]

For the 630M experimental band  set your dial to 474.2 USB , Mostxmit on WSPR , 
However there are some CW and JT9 two-way qso's.I am txing now.

73 Ken K5DNL/WG2XXM
 

On Tuesday, March 21, 2017 6:21 PM, Fred Jensen  wrote:
 

 Has anyone noticed that 277.2 KHz is not in a ham band?

73,

Fred ("Skip") K6DGW
Sparks NV USA
Washoe County DM09dn

On 3/21/2017 7:24 AM, Walter Underwood wrote:
> The noise blanker might help, but NR will almost certainly distort the signal.
>
> I would turn off NR and see if the signal improves.
>
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
>
>> On Mar 20, 2017, at 9:49 PM, wa9fvp  wrote:
>>
>> Good Whisper reception on my K3S at 474.2KHz.  The NB and NR helps a lot.
>> My QTH is EN-61
>>
>> UTC    dB  DT  Freq          Call
>>
>> 0426 -22 -0.7  0.4742  0 WH2XGP DN07 37
>> 0426 -13 -1.1  0.4742  0 WG2XKA FN33 30
>> 0426 -18 -1.2  0.4742  0 WH2XZO EM85 30
>> 0426 -10 -1.1  0.4742  0 WG2XIQ EM12 37
>> 0428 -10 -0.9  0.4742  0 WI2XSV EN61 23
>> 0428  -2 -1.1  0.4742  0 WG2XXM EM15 37
>> 0428 -25 -0.9  0.4742  0 WI2XSV EN61 23
>> 0430 -13 -1.0  0.4742  0 WH2XXP DM33 47
>> 0430 -17 -0.9  0.4742  0 WH2XZO EM85 30
>>
>>
>>
>> -
>> Jack WA9FVP
>>

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Re: [Elecraft] WSPR2.0 at 277.2KHz

[Ken Roberson via Elecraft]

Jack,Thanks for the 630M wspr report , I have been on 630M for almost 4 years , 
Andthis band is still amazing to me .Decode from G3XKR last night.Rig : K3 with 
HB class D pwr amp , Ant 60 ft vertical with top loading.73 Ken K5DNL/WG2XXM

 

On Tuesday, March 21, 2017 8:30 AM, wa9fvp  wrote:
 

 Noise reduction is also available in CW mode.  The LMS algorithm converges on
a sinisoidal wave and forms a filter around the signal.  CW or WSPR is pure
sinisoidal and the NR works the best with these two modes.  Last night, I
was getting QRN and the NR/NB made it more plesent to the ear.  In spite of
that, when I turned off NR/NB, WSPR dB levels were about the same.



-
Jack WA9FVP

Sent from my TRS-80 :-)
--
View this message in context: 
http://elecraft.365791.n2.nabble.com/WSPR2-0-at-277-2KHz-tp7628363p7628377.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] PR-6 for sale

[Ken Roberson via Elecraft]

For sale PR6 - 6 meter preamp$65.00 I ship CONUSEmail good on qrzKen K5DNL
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[Elecraft] KXV3 -- Xverter PWA

[Ken Roberson via Elecraft]

Thanks everyone , I now am now the proud owner of a KXV3A PWA.

73 Ken K5DNL/WG2XXM
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[Elecraft] KXV3A - Xverter pwa

[Ken Roberson via Elecraft]

Hello All, I am in need of the older KXV3A – I’m running this K3 with 
atransverter and Don’t need the extra pre-amp. Please email direct, my email is 
good on qrz. Thanks Ken K5DNL/WG2XXM  
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[Elecraft] K3- 630 meters

[Ken Roberson via Elecraft]

Hello all,
Good condx on 630 meters 
With the K3 and homebrew power amp running 5 watts ERP on 630 meters ( 475.710 
khz )And 60 ft vertical with top loading.
Last night ( 8/18/15 ) this station was decoded by two stations in Australia ( 
VK2DDI - 13987 km )And ( VK2XGJ - 13962 km ).
630M is the new top band.
73 all K5DNL/WG2XXM
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[Elecraft] K3_630M_Pwr Amp

[Ken Roberson via Elecraft]

Hello All,
My two cents, I would start with a homebrew class D pwr amp.This will get you 
on CW,WSPR,JT9 and a few other digi modes.The class D switching mode FET power 
amps are easy tobuild and easy to drive.This will get you started and later you 
can build a class A pwr amp.Most of the narrow band modes that you will end up 
using do not need classA,AB mode pwr amps.Remember the bandwidth of the 630M 
band is about the sameBandwidth as two SSB signals.
73 Ken K5DNL/WG2XXM
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[Elecraft] K3_low freq mod

[Ken Roberson via Elecraft]

Hello all,
Today I finally had time to finish the K3 low frequency mod, adding the caps 
and removing the inductors from the band pass board.All went well, this is an 
easy mod even for an old ham.With my calibrated ear and S meter it is 
noticeable that the noise is lowerat the low end of the band (100 khz ).The NDB 
were also stronger, From central Oklahoma in the daytime I amable to hear 
stations in TX,OK,KS,AR,NE some as far as 500 miles.Antenna is a 60 ft 630M top 
and base loaded vertical.The K3 is working very nice on the 630M experimental 
band.I have been TX/RX on this band for almost two years with experimental 
license WG2XXM. 
Most of the time running around 5 watts ERP.The 475 khz 1mw signal coming from 
the K3 is going into a HB Class D PWR AMP.Running WSPR and JT9 most of the 
time.I have been off the air for a while doing another hobby with my Son ( 
Astrophotography ).Weather permitting I will be txing WSPR tonight.Set your 
radio to 474.2 upper side band WSPR software.You will see my trace at + 1520 -- 
that will be 710 on the waterfall.Thanks agn Elecraft.73 Ken K5DNL/WG2XXM
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[Elecraft] K3_630 meters

[Ken Roberson via Elecraft]

Hello all,
If you have the new synthesizer board and the General RX bandpass board in your 
K3
You are able to rx WSPR signals on 630 meters.I will be txing WSPR tonight , 
running 2 watts ERP , My gnd is wet so will be runninga little less power than 
normal.Set your dial to 474.2 - data mode and start your WSPR program.You will 
be surprised what you will hear even with a 80 M dipole.
73 all Ken K5DNL/WG2XXM

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[Elecraft] K3_KSYN3A_Synthesizer

[Ken Roberson via Elecraft]

Anyone else having trouble with milliwatt TX gain Cal using the new synthesizer 
boardOr is it just me.Also on the RF power out only one bar is lite up.If I set 
power to 0 dbm (1 milliwatt) it only shows -12.0 dbm ( .06 mw)
Thanks
Ken K5DNL/WG2XXM
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[Elecraft] K3 - 630 Meter WSPR

[Ken Roberson via Elecraft]

Hello all,I ran the K3 overnight on 630M WSPR driving a homebrew 125 watt 
powerAmp into 60 ft vertical.My signal was decoded by 35 unique stations and 99 
spots from Merv ( WH2XCR -  KH6 land) .This stations has been decoded all over 
the lower 48, Wasilla Alaska , Maunaloa,HI , Canadaand also a few spots from 
EU.The K3 is preforming very nice on this band with the new synthesizer 
board.Thanks again Elecraft for a unbeatable rig
73 Ken K5DNL/WG2XXM
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[Elecraft] K3- Synthesizer

[Ken Roberson via Elecraft]

Hello all,
Installed the syn pwa yesterday and ran 630M WSPR beacon overnight.I should be 
getting 1mw out of the K3 - however I,m only getting .8 mw.Today I will run the 
power cal maybe that will help to get a little morepower out. 
The K3 is preforming very nice on 630 meters.set your rx dial to 474.2 - upper 
side band .On 630 meters I,m running 5 watts ERP into a 60 ft top loaded 
vertical.Check out the WSPR map around 8:PM to10:PM
There are a few photo and a little info on qrz-dot-com.Thanks everyone
73 Ken K5DNL/WG2XXM


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Re: [Elecraft] Power output changed in K3

[Ken Roberson via Elecraft]

Not sure that apply to 630M band
Ken K5DNL/WG2XXM
  

 On Sunday, February 22, 2015 10:02 AM, Phil Wheeler w...@socal.rr.com 
wrote:
   

 Yes. Note with 5.10 says  /Those who loaded rev. 
5.10 must re-do the 50-Watt gain calibration.

/Guess I'd better do that today :-)

Phil W7OX

On 2/22/15 7:33 AM, Joe Subich, W4TV wrote:

 Did you load one of the recent beta firmware 
 releases?  Starting with
 5.01 (I think) - certainly in 5.10 there was a 
 change that required
 redoing the TX power calibration.

 73,

  ... Joe, W4TV


 On 2015-02-22 6:26 AM, Johnny Siu wrote:
 Hello Elecrafters,
 I recently discovered that only 20m can deliver 
 90W with all other bands deliver 40-50W.  I did 
 a RF power output re-calibration and everything 
 is ok now.
 I don't know why this happens?  I did not do 
 any changes in configuration before.
 Any ideas?
 73
 Johnny VR2XMC

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Re: [Elecraft] KSYN3A and below 490 KHz?

[Ken Roberson via Elecraft]

Hello All .
There is a photo of antenna and a little info on qrz-dot-com
Ken K5DNL/WG2XXM
 

 On Wednesday, February 18, 2015 7:13 PM, Phil Wheeler w...@socal.rr.com 
wrote:
   

 What sort of antenna do you use for the 630 m band 
TX, Ken?

Phil W7OX

On 2/18/15 4:19 PM, Ken Roberson via Elecraft wrote:
 Hello All,My synthesizer board shipped today , Looking forward to testingMy 
 new built HB power Amp on 630 meter band with no transverter.
 Anyone can apply for a Experimental license to operate on the630M band - The 
 cost is $ 65.00 for a two year Grant.73 allKen K5DNL/WG2XXM
  

      On Wednesday, February 18, 2015 1:12 PM, Ross Primrose n...@n4rp.com 
wrote:
    

  On 2/18/2015 1:17 PM, Wayne Burdick wrote:
 Probably not. It allows quite useful sensitivity down to 250 kHz, and
 even some utility at 100 kHz. But most operators are interested in the
 600-meter band (472-479 kHz). Wayne N6KR
 At the rate they're going, my grand kids will probably be retired before
 the FCC grants US hams access to that band :(

 73, Ross N4RP


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Re: [Elecraft] KSYN3A and below 490 KHz?

[Ken Roberson via Elecraft]

Hello All,My synthesizer board shipped today , Looking forward to testingMy new 
built HB power Amp on 630 meter band with no transverter.
Anyone can apply for a Experimental license to operate on the630M band - The 
cost is $ 65.00 for a two year Grant.73 allKen K5DNL/WG2XXM
 

 On Wednesday, February 18, 2015 1:12 PM, Ross Primrose n...@n4rp.com 
wrote:
   

 On 2/18/2015 1:17 PM, Wayne Burdick wrote:
 Probably not. It allows quite useful sensitivity down to 250 kHz, and 
 even some utility at 100 kHz. But most operators are interested in the 
 600-meter band (472-479 kHz). Wayne N6KR

At the rate they're going, my grand kids will probably be retired before 
the FCC grants US hams access to that band :(

73, Ross N4RP

-- 
FCC Section 97.313(a) “At all times, an amateur station must use the minimum 
transmitter power necessary to carry out the desired communications.”

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Re: [Elecraft] KSYN3A and below 490 KHz?

[Ken Roberson via Elecraft]

Phil,
I'm txing now - WSPR  - set ur dial to 474.2 khz - upper side band
Ken K5dnl/Wg2xxm
 

 On Wednesday, February 18, 2015 8:06 PM, Ken Roberson 
kwrober...@yahoo.com wrote:
   

 Hello All .
There is a photo of antenna and a little info on qrz-dot-com
Ken K5DNL/WG2XXM
 

 On Wednesday, February 18, 2015 7:13 PM, Phil Wheeler w...@socal.rr.com 
wrote:
   

 What sort of antenna do you use for the 630 m band 
TX, Ken?

Phil W7OX

On 2/18/15 4:19 PM, Ken Roberson via Elecraft wrote:
 Hello All,My synthesizer board shipped today , Looking forward to testingMy 
 new built HB power Amp on 630 meter band with no transverter.
 Anyone can apply for a Experimental license to operate on the630M band - The 
 cost is $ 65.00 for a two year Grant.73 allKen K5DNL/WG2XXM
  

      On Wednesday, February 18, 2015 1:12 PM, Ross Primrose n...@n4rp.com 
wrote:
    

  On 2/18/2015 1:17 PM, Wayne Burdick wrote:
 Probably not. It allows quite useful sensitivity down to 250 kHz, and
 even some utility at 100 kHz. But most operators are interested in the
 600-meter band (472-479 kHz). Wayne N6KR
 At the rate they're going, my grand kids will probably be retired before
 the FCC grants US hams access to that band :(

 73, Ross N4RP


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Re: [Elecraft] Strange Ticking sound with K3/0 Mini to RemoteRig for remotely controlling K3.

[Ken Roberson via Elecraft]

I do not have K3/0 remote rig , however I have the ticking sound.
While using homebrew 630 meter transverter and the band noise is low.
I always thought it was the K3 clock. I could be wrong because I was once 
before.

73 Ken K5DNL / WG2XXM




On Saturday, October 25, 2014 11:02 AM, n6ee r...@csustan.edu wrote:
 


I have same ticking sound in K3/0 Mini EXACTLY as described by Brian - Mic in
or out makes no difference. Only thing that stops it is removing TTL cable.
Puzzling and annoying.

73,
Ron N6EE




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View this message in context: 
http://elecraft.365791.n2.nabble.com/Strange-Ticking-sound-with-K3-0-Mini-to-RemoteRig-for-remotely-controlling-K3-tp7593668p7594166.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] Strange Ticking sound with K3/0 Mini to RemoteRig for remotely controlling K3.

[Ken Roberson via Elecraft]

It's the K3 Clock - 73 Ken K5DNL
 

 On Sunday, October 5, 2014 5:19 PM, K4ia via Elecraft 
elecraft@mailman.qth.net wrote:
   

 USB or serial port polling?  Try a different adapter or one that uses an 
optoisolater  

Craig Buck

 On Oct 5, 2014, at 5:36 PM, Brian F. Wruble bwru...@gmail.com wrote:
 
 Hi All:
 
 The symptom I am describing persists despite changing routers, internet
 systems, and cities.  In a QSO this morning, the other parties reported a
 ticking sound on my transmitted signal --- faint but noticeable --- and I
 could also hear it in XMIT Monitor.  I was operating my remote gear as a
 test --- in the same room as the K3, and on the same LAN.
 
 I have now set myself up 110 miles away, and the sound persists.  I am able
 to work others, get good signal reports, but I can hear the tick tick tick,
 about 2 per second.
 
 In testing, I find the sound is there even if I power down the gear --- the
 radio and the control end.  It persists if I remove 12VDC from the K3/0
 mini.  Also if I remove the wifi module from the RemoteRig control box.
 
 If I remove power from the RemoteRig, it goes away.  With power to the RR,
 the ticking goes away if I unplug the TTL line from the K3/0 mini.
 Unplugging the other lines makes no difference, though it becomes fainter
 if I unplug Aux/Mic. It persists if I remove the ethernet cable
 connecting the RemoteRig to my router.  It persists if I unplug the USB
 line from the RemoteRig to my PC.
 
 This symptom appeared after a good period of time when everything worked.
 And all functionality is still there --- just this maddening tick tick tick
 --- like something from Edgar Allan Poe.
 
 All ideas gratefully accepted.
 
 73 de Brian W3BW
 
 *Brian F. Wruble, C.F.A.
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