[Elecraft] S-meter reading at 100kHz

2020-09-03 Thread Roger D Johnson
For those of you that have the KBPF3 100-400 kHz modification: What is your no-signal S meter reading at 100 kHz? Do you have the 220 Ufd polymer capacitor installed? Thanks, Roger __ Elecraft mailing list Home:

[Elecraft] For Sale: K3/100 s/n 2578

2020-07-29 Thread Roger D Johnson
I discovered that I had not upgraded to the KIOB3B card which provides a sound card and USB connection. I'm dropping the price to $2300 accordingly. Has virtually all options except VHF converters and KBPF3 on aux receiver. 6, 2.7 and 0.5 kHz filters in main RX; 2.7 and 0.5 hHz filters in aux

[Elecraft] KIOB3B for K3

2020-07-29 Thread Roger D Johnson
Apparently this card is no longer available. Does anyone know what the price was? 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

[Elecraft] For Sale: K3/100 s/n 2578

2020-07-26 Thread Roger D Johnson
Has virtually all options except VHF converters and KBPF3 on aux receiver. 6, 2.7 and 0.5 kHz filters in main RX; 2.7 and 0.5 hHz filters in aux RX. Went back to Mothership in Jul 2016 for TLC and upgrades. Please contact me directly with any questions: n...@roadrunner.com Asking $2500 plus

Re: [Elecraft] K3 Audio Peaking Filter

2020-06-22 Thread Roger D Johnson
Unfortunately, the APF is too narrow for 160m with all the lightning noise. As I recall, we've been promised wider selectivity choice(s) but nothing ever happened. 73, Roger On 6/22/2020 12:27 PM, John Gibson wrote: Each Sunday evening, I use my K3 #820 to try to check into Kevin’s 20m

Re: [Elecraft] OT: The Colpitts mystery

2020-04-29 Thread Roger D Johnson
I was stationed with the Coast Guard in Kodiak, Alaska between Summer 1976 and Summer 1978. I flew up to Anchorage to take my Extra exam before an examiner. Probably sometime in 1977. 73, Roger On 4/29/2020 10:47 AM, Ted Roycraft wrote: I took the test for Extra administered by an FCC

Re: [Elecraft] K3S poor CW reported with N1MM+

2020-04-24 Thread Roger D Johnson
I rather liked the old Russian tank radios. Whoop de whoop de whoop whoop de whoop. 73, Roger On 4/24/2020 9:40 AM, Carl Yaffey wrote: IMHO nothing beat the sound of CW from a Collins 32V3. Yeah, I’m old! 73 K8NU __ Elecraft

[Elecraft] Amp Failure, Efficiency

2020-02-07 Thread Roger D Johnson
With a switchmode power supply, it would seem to be simple to provide one or more lower voltage outputs to keep efficiency up at lower powers (maintain same load Z). 73, Roger __ Elecraft mailing list Home:

[Elecraft] KPA1500 for sale

2020-01-12 Thread Roger D Johnson
Unfortunately, illness forces me to sell my KPA1500 s/n 373. It has Temperature Sensor and Minimum Load mods installed. Works perfectly. There are so few of these for sale I don't know what a fair asking price would be. I'm thinking $5000. I'll probably also sell my K3. perhaps someone would

[Elecraft] K-POD is sold

2019-12-04 Thread Roger D Johnson
Thanks and Merry Christmas to all who replied. 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by:

[Elecraft] K-POD for sale

2019-12-04 Thread Roger D Johnson
Like new. I thought I would use it more but, with my operating style, it just sits there. $200 Plus shipping. 73, Roger N1RJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] K3 Drive Levels and the SPE 1.3K-FA

2019-11-25 Thread Roger D Johnson
I purchased one of these amps about two years ago. I expected it to require 50 to 60 watts of drive for full output but it only took half that. I was worried about screwing up and hitting it with 100 watts from the K3 and blowing the final transistor. I knew there was a pad on the input and I

Re: [Elecraft] KX3's binaural pitch-mapping feature

2019-10-22 Thread Roger D Johnson
I've tried several times to get this to work on my K3 without result. My K3 has no AFX Mode selection. 73, Roger On 10/21/2019 8:05 PM, Wayne Burdick wrote: The KX3, like the K3/K3S and KX2, has full stereo audio. But it has one special audio effects mode the others don't: binaural-audio

[Elecraft] K2USA

2019-09-14 Thread Roger D Johnson
I was never at Ft Monmouth...took my training at Ft Gordon. We had a small hamshack there not nearly as elaborate as k2USA. I almost blew up the building one night. My first experience firing a furnace using soft coal. 73, Roger __

Re: [Elecraft] KPA1500 Solution to the efficiency problem?

2019-08-31 Thread Roger D Johnson
board! 73, Roger On 8/31/2019 9:32 AM, Roger D Johnson wrote: It occurred to me that the KPA1500's built in tuner might be of some help. Here's my reasoning. If we decrease the drive power to lessen the output power but keep the same voltage, the amplifier wants to see a higher load impedance

[Elecraft] KPA1500 Solution to the efficiency problem?

2019-08-31 Thread Roger D Johnson
It occurred to me that the KPA1500's built in tuner might be of some help. Here's my reasoning. If we decrease the drive power to lessen the output power but keep the same voltage, the amplifier wants to see a higher load impedance. Here are the results of some quick tests: Base line is the

Re: [Elecraft] KPA-1500 on digital modes

2019-08-29 Thread Roger D Johnson
no longer have the amp so I can't check the eff at those voltages and power levels. 73, Roger On 8/29/2019 9:03 AM, Roger D Johnson wrote: It's interesting that the heat that has to be dissipated is pretty close to 1000 watts in all these scenarios! Running the amp at less than full power buys you

Re: [Elecraft] KPA-1500 on digital modes

2019-08-29 Thread Roger D Johnson
It's interesting that the heat that has to be dissipated is pretty close to 1000 watts in all these scenarios! Running the amp at less than full power buys you nothing. 73, Roger On 8/29/2019 8:38 AM, Larry (K8UT) wrote: Pete, I don't run my amp at full legal limit on digital modes, but

Re: [Elecraft] KPA-1500 Power Output Variation

2019-08-24 Thread Roger D Johnson
I just did some experiments with my K3/KPA1500 combo into a dummy load. I used my LP-700 for power measurements. Drive from K3 was set to 30W (28 on K3 indication). I started at 35C with PO at 1362 watts. At 70C, the PO dropped to 1277 watts...about a 6% decrease. K3 output remained steady at

[Elecraft] K3 and NaP3 v5.6.0

2019-06-10 Thread Roger D Johnson
This setup works fine except for 6m where the image rejection goes away. Larry, N8LP says the NaP3 program senses when the radio goes above 48 mHz and changes the I/Q setting to compensate. I've tried several versions of NaP3 and none of them do this on my setup. Am I missing something in the

Re: [Elecraft] Measuring SWR (Long)

2019-04-09 Thread Roger D Johnson
For an interesting discussion..."What happens to the power that's reflected?" On 4/9/2019 3:42 PM, Al Lorona wrote: There's always a lot of discussion about measuring SWR, low SWR values, SWR lights not lighting up, etc. Here's something that might give you a better 'feel' for SWR. Imagine

[Elecraft] New KPA1500 manual

2019-03-28 Thread Roger D Johnson
When I was in the military, and a pub was changed, they just sent new pages that had the changes. That way they didn't have to re- publish the whole thing. Could Elecraft tell us which pages had been changed so we can print them out without doing the whole manual? 73, Roger

Re: [Elecraft] Purpose of this group

2019-03-24 Thread Roger D Johnson
I have no interest in most of the technical discussions. Roger N1RJ On 3/24/2019 8:40 AM, Bill wrote: Am I correct that this is a technical group? Or, is posting space to be taken up by non-technical discussions of which many users have no interest? Bill W2BLC owner/user

Re: [Elecraft] OT: RTTY Nostalgia

2019-03-22 Thread Roger D Johnson
I remember that from my Army days in the AN/GRC-26. No cat though! 73, Roger On 3/22/2019 12:26 PM, Ken G Kopp wrote: I had a Teletype Model 26 attached to a BC-610E. Cat slept on top for warmth. 73 ! K0PP __ Elecraft mailing

Re: [Elecraft] Query for new DSP features

2019-01-13 Thread Roger D Johnson
What ever happened to giving us some alternate selectivity on the APF? 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] WHY NOT 700HZ FILTER FOR K3/K3S?

2018-12-23 Thread Roger D Johnson
I can vary the selectivity from 2800 to 50 Hz with the width knob. 73, Roger On 12/23/2018 10:08 AM, Bob McGraw K4TAX wrote: I find the 500 Hz 5 pole filter works very satisfactory for this purpose. 73 Bob, K4TAX On 12/23/2018 6:54 AM, Victor Rosenthal 4X6GP wrote:

Re: [Elecraft] KPA-1500 issues

2018-11-27 Thread Roger D Johnson
Interesting! I just ran some tests on my station into Bird load; tuner bypassed: At 50.1 mHz: LP-700 1.06 K3 1.5 KPA1500 1.0 At 9.56 mHz (geometric mean freq) LP-700 1.05 K3 1.1 KPA1500 1.0 At 1.825 mHz: LP-700 1.05 K3 1.1 KPA1500 1.0 My KPA1500 looks good but K3 is off on 6m. 73, Roger

Re: [Elecraft] KPA1500 Status Displayed on K3

2018-10-26 Thread Roger D Johnson
The display of the K3 is "hard coded". When it was designed, there was no KPA1500 hence it can only read KPA500. 73, Roger On 10/26/2018 8:13 AM, Ed G wrote: I can’t think of a lower priority issue to have….so here is my question. I have the KPA1500 and K3 cabled together. Why do status

[Elecraft] KPA -1500 fixed!

2018-09-23 Thread Roger D Johnson
I had to revert to WinXP in order to change the port assignment for the FTDI adapter. After I finally established comms, the firmware loaded and all seems fine now. Just wondering why I had the "low gain ratio" error with v1.78? 73 all, Roger

[Elecraft] KPA1500

2018-09-23 Thread Roger D Johnson
I think I've bricked my KPA1500! Yesterday I installed v1.78 of the firmware. Today I was calling a dx station on 20m and I kept getting a "low gain ratio" error message. I thought it might be the new firmware so decided to go back to v1.64. I downloaded the hex file from Elecraft and somewhere

Re: [Elecraft] OT: WWV/WWVH Closure

2018-08-20 Thread Roger D Johnson
Ah! LORAN C. I remember it well. Roger CWO4, USCG (retired) On 8/20/2018 12:54 PM, Rose wrote: Trivia .. The last I knew the WWVB transmitter is a "repurposed" 100KW LORAN C TX from the closed site in ND. 73! K0PP __ Elecraft

[Elecraft] KPA1500

2018-08-09 Thread Roger D Johnson
The amp arrived in fine shape and am getting familiar with all the features. I have some questions: Is there an input attenuator normally in-line? I can't figure out how to manually change the L and C values for the tuner. If these are changed, are the settings memorized? 73, Roger N1RJ

Re: [Elecraft] Survey and summary: Elecraft K3/K3S panadapter solutions

2018-07-26 Thread Roger D Johnson
It's also fine with a reliable sound card! 73, Roger On 7/26/2018 6:33 PM, Joe Subich, W4TV wrote: The issue is that NaP3 does not support Airspy, SDRplay or RTS dongle based SDRs. It's fine if one has LP-Pan with an unreliable sound card or Fun Cube Dongle but otherwise it's rather

Re: [Elecraft] Which Amp ?

2018-07-24 Thread Roger D Johnson
I have the report. 3rd order IMD ranges from approx 31 to 35db at 1000 watts output. Not terrible but not spectacular either. I really wish they had tested it at rated power (1300 watts). I might be very different at that point! 73, Roger On 7/24/2018 4:03 PM, Joe Subich, W4TV wrote: On the

Re: [Elecraft] Which Amp ?

2018-07-24 Thread Roger D Johnson
I'm using the SPE 1.3K-FA at present but have a KPA-1500 on order. I like the idea of automatically reducing the power out of the K3 to a preset value when the KPA-1500 is turned on. I also like the idea of having a bit more "headroom". The 1.3K has a 1db compression point of about 1300 watts

Re: [Elecraft] KPA1500

2018-05-17 Thread Roger D Johnson
What are users seeing for maximum power output on each band? 73, Roger N1RJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net

[Elecraft] K3 spurs

2018-05-15 Thread Roger D Johnson
I was watching 6m yesterday and noticed several spurs. They were spaced 39kHz apart. Amplitude dropped but didn't disappear when switched to dummy load. I have the K3 with new synthesizer boards. Just wondering if anyone else seeing something similar. IOW is it something in the K3 or external?

Re: [Elecraft] OK, odd question

2018-02-14 Thread Roger D Johnson
IIRC there was no "standard". It was an arbitrary choice by the manufacturer which side of the filter they put the BFO crystal frequency. Nice to have a choice with the K3! 73, Roger On 2/14/2018 11:15 AM, Chuck Chandler wrote: Something that bugs me just a tiny wee bit. So, for years I

[Elecraft] Old Software version

2018-02-06 Thread Roger D Johnson
How do I load an older version back into the K3? 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted

[Elecraft] Selectivity

2018-02-06 Thread Roger D Johnson
I noticed that during the contest, that if I selected 50 or 100 Hz selectivity, the audio would drop way down. It didn't used to be this way. I tried reloading an earlier version of the software but couldn't figure out how to do it. Hope this comes through, finally! 73, Roger

[Elecraft] K3 selectivity positions

2018-02-06 Thread Roger D Johnson
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[Elecraft] Selectivity

2018-01-31 Thread Roger D Johnson
I noticed that during the contest, that if I selected 50 or 100 Hz selectivity, the audio would drop way down. It didn't used to be this way. I tried reloading an earlier version of the software but couldn't figure out how to do it. Hope this comes through, finally! 73, Roger

[Elecraft] Selectivity

2018-01-30 Thread Roger D Johnson
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[Elecraft] Selectivity

2018-01-30 Thread Roger D Johnson
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[Elecraft] K3 selectivity positions

2018-01-30 Thread Roger D Johnson
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Re: [Elecraft] K3 / RF gain - S meter issue

2017-12-14 Thread Roger D Johnson
Is the S meter supposed to read 60 over 9 when the RF gain is turned all the way down? Mine reads 30db! 73, Roger On 12/13/2017 9:10 PM, Wes Stewart wrote: I would first perform the RF Gain calibration using the K3 Utility. The calibration program measures gain characteristics and applies

Re: [Elecraft] K3 in data A mode

2017-10-10 Thread Roger D Johnson
. Try again with the bare K3 and see what happens. If you have the KAT3 installed, do an ATU TUNE into the dummy load to set the L/C components to match the dummy load. 73, Don W3FPR On 10/10/2017 4:37 PM, Roger D Johnson wrote: I'm trying to get my system set up for RTTY. I think I have

[Elecraft] K3 in data A mode

2017-10-10 Thread Roger D Johnson
I'm trying to get my system set up for RTTY. I think I have the cabling OK. Using MTTY I can decode signals fine but when I try to transmit, I get no power out. The MTTY program keys the VOX and I have 5 bars of ALC but nil on the wattmeter! Help! 73, Roger N1RJ

Re: [Elecraft] 630M

2017-09-22 Thread Roger D Johnson
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] K3 strange behavior

2017-09-07 Thread Roger D Johnson
Whilst searching for some RFI, I noticed my K3 has a sudden drop in gain when tuning up past 3300 kHz. I have the KBPF3 installed but don't know what frequencies the K3 switches from the normal filters to the KBPF3 filters. 73, Roger

[Elecraft] K3 auto power reduction

2017-08-31 Thread Roger D Johnson
The KPA-500 (and probably the KPA-1500) will automatically reduce the power from the K3 to a predetermined level for proper drive and back to the level from the power control when the amp is off. Is there a way to invoke this magic with other amplifiers? 73, Roger N1RJ

Re: [Elecraft] K3S with an external receiver

2017-08-24 Thread Roger D Johnson
The antenna is easy. Muting the external rx is the problem! 73, Roger On 8/24/2017 12:00 AM, JEAN-FRANCOIS wrote: Hi, Is there anybody ever use an external receiver with a K3S as a second receiver… to act as a second receiver that can share the same antenna the K3S use or similar setup???

Re: [Elecraft] Make this email list more manageable - a forum instead?

2017-08-21 Thread Roger D Johnson
Let's see Assuming the computer is running here's what I have to do: 1. Bring up Thunderbird mail program 2. Select Elecraft folder 3. Scroll down and click on the email I want to read. For Antique Radio Forum, which I like very much, I do this: 1. Bring up ARF 2. Click on topic I want

Re: [Elecraft] Make this email list more manageable - a forum instead?

2017-08-19 Thread Roger D Johnson
I really like the format on Antique Radios: http://antiqueradios.com/forums/ 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

[Elecraft] B Folded Dipole over an Armory

2017-08-13 Thread Roger D Johnson
Cebik, W4RNL, modeled two versions of the T2FT. One 165ft long and the other 100ft. Here is what he said about these antennas: Terminator Resistor Losses Although transmitting uses have been made of the T2FD, its chief use appears to be as a short wave reception antenna. In this application,

Re: [Elecraft] B Folded Dipole over an Armory

2017-08-13 Thread Roger D Johnson
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[Elecraft] OT - DX Cluster Programs

2017-06-20 Thread Roger D Johnson
I've just gotten interested in 6 meters but only CW and SSB. Is there any cluster software that lets you filter out the digital spots on 50,276? Thanks, Roger __ Elecraft mailing list Home:

Re: [Elecraft] Ground Rods and Congrete - Enough Said!

2017-04-19 Thread Roger D Johnson
Unfortunately, lightning protection is one of the most discussed and least understood topics in amateur radio. A properly engineered and constructed Ufer ground works well but many seem to think that any amount of conductor buried in any amount of concrete in any configuration is a Ufer ground!

Re: [Elecraft] A little theory

2017-04-16 Thread Roger D Johnson
There is a man I wish I had met. Look up his safecracking escapades at Los Alamos! 73, Roger On 4/16/2017 2:40 PM, kev...@coho.net wrote: If you are not familiar with Richard Feynman he was a physicist who worked on the Manhattan Project. He was also a professor at Caltech. Here are some of

Re: [Elecraft] QRZ.com

2017-02-28 Thread Roger D Johnson
I just tried and got this message: We are expriencing issues with our Cloud Storage provider, Please be patient while they work to resolve the problem. In the meantime some parts of QRZ may not be available or may be slow to respond. On 2/28/2017 3:00 PM, Ken G Kopp wrote: Has anyone

Re: [Elecraft] Soldering lesson

2017-02-18 Thread Roger D Johnson
Even the caption is incorrect! You don't "hone in" on anything. 73, Roger On 2/17/2017 6:28 PM, Douglas Hudson wrote: This is an example of how easy it is to build a kit. http://www.eejournal.com/archives/fresh-bytes/everything-about-this-beautiful-woman-soldering-stock-photo-is-w/

Re: [Elecraft] Is it just me?

2017-01-25 Thread Roger D Johnson
I immediately delete such messages! It may be genuine but it sure looks like a troll looking to see if it's a "live" email address. 73, Roger On 1/25/2017 2:38 PM, Jim Rhodes wrote: When I get an email like this when I reply to a message on a forum like this I get the impression that someone

Re: [Elecraft] I need More RX Volume on my K3, has anyone run an external audio amp?

2016-12-31 Thread Roger D Johnson
I use an amplified pair of computer speakers. 73, Roger On 12/31/2016 5:46 PM, Harry Yingst via Elecraft wrote: I have the K3 and a pair of SP3 speakers When I turn down the RF gain and turn on the NR (to clean up the band noise) I run out of Audio (too quiet) to hear the weaker signals.

[Elecraft] Fwd: NaP3 version 5

2016-10-14 Thread Roger D Johnson
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Re: [Elecraft] genovation Keypad for sale

2016-10-04 Thread Roger D Johnson
I have the CP48 USBHID keypad which is the correct one for P3 users. It already has the software to show as non-multimedia keyboard as described on the NK7Z website. $100 shipped 73, Roger __ Elecraft mailing list Home:

Re: [Elecraft] genovation Keypad

2016-09-30 Thread Roger D Johnson
Jeff, VA2SS, wrote an article covering this: http://www.eham.net/articles/32176 Unfortunately, I can't retrieve the picture that went with the article. Jeff used a "serial port splitter" but I think a program like LP-Bridge that generated virtual ports will work also. I ordered a USB keypad

[Elecraft] genovation keypad

2016-09-08 Thread Roger D Johnson
I found a good buy on a Genovation CP48 -USBHID keypad but don't know how to get it to work with LP-Bridge and my K3. I don't see a way to assign it to a virtual port on LP Bridge. Any suggestions? 73, Roger __ Elecraft mailing list

[Elecraft] K3Utility Data

2016-07-06 Thread Roger D Johnson
Where does the K3 utility store it's data? RF gain cal, AGC cal, etc 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net

[Elecraft] Help with K3

2016-06-23 Thread Roger D Johnson
Well, the "edit as new" didn't seem to work! The rig with no front panel LEDs working is a K3. I do have 5 volt power to the LEDs. 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] Help!

2016-06-23 Thread Roger D Johnson
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[Elecraft] Help!

2016-06-23 Thread Roger D Johnson
I just finished the connector mod and replaced some of the encoders. All seemed to go well until I noticed that NONE of the front panel LEDs were lit! has anyone been down this road before? 73, Roger __ Elecraft mailing list Home:

[Elecraft] KPA100 module

2016-06-21 Thread Roger D Johnson
I'm installing the "gold plated" connector mod and I noticed that my PA module has a 2700 ufd cap mounted on the heat sink side of the board between the +12 volt input and ground pins of P68B. This cap isn't on the latest schematic (Jun 2010) and I don't see it on any pics of the PA module! I

Re: [Elecraft] abject buffoonery

2016-02-14 Thread Roger D Johnson
For an international sewer; see 20 meters! On 2/14/2016 12:40 PM, Jim Brown wrote: On Sun,2/14/2016 9:17 AM, John wrote: "A third word of advice...until you have some HF miles under your belt, stay away from the abject buffoonery known as 75 meters." Is there a problem with one of our bands?

Re: [Elecraft] K3: External Macro Launcher (Revisited)

2015-12-24 Thread Roger D Johnson
Now you're talking an extra Kilobuck for these goodies. A programmable keypad is far less expensive. 73, Roger On 12/24/2015 10:51 AM, Cady, Fred wrote: Hi, A P3 with the SVGA option can store 50, 124 character macros that can be executed with a single Ctrl-, Alt-, or Alt-Ctrl-key. You do

Re: [Elecraft] 30 meter problem

2015-11-23 Thread Roger D Johnson
Sorry! It's a K3 On 11/23/2015 7:45 AM, Roger D Johnson wrote: I've had power output problems on 30 for a while but I just noticed something strange. I set the power to 100 watts and that's what it measures on my LP-100. When I turn on the sub-receiver, the power drops to 88 watts! My TXGAIN

[Elecraft] 30 meter problem

2015-11-23 Thread Roger D Johnson
I've had power output problems on 30 for a while but I just noticed something strange. I set the power to 100 watts and that's what it measures on my LP-100. When I turn on the sub-receiver, the power drops to 88 watts! My TXGAIN on 30m is 95 which is far greater than the other bands. 73, Roger

Re: [Elecraft] about 60m erp

2015-11-12 Thread Roger D Johnson
According to EZNEC, a 1/2 wave dipole up 1/2 wavelength has a gain of 7.76 dbi at 27 degrees elevation. Most of this is due to ground reflection. My vertical has a gain of 0.72 dbi. So I can run 7db more power (500 watts)!!! 73 Roger On 11/12/2015 7:30 AM, Roy Koeppe wrote: “Kpa500 on 60 is

[Elecraft] APF

2015-11-10 Thread Roger D Johnson
Whatever happened to the plan to provide adjustable or stepped values of selectivity for the APF function? I rigged up a kluge consisting of an old Autek QF-1A but would much rather have it's function built-in. 73 Roger __ Elecraft

Re: [Elecraft] OT: Small solar array to handle just the shack, computers, and lighting

2015-09-25 Thread Roger D Johnson
On further thought, you can use a 12 volt system with boost/buck converter to ensure constant voltage to the K3. On 9/25/2015 4:05 PM, Roger D Johnson wrote: A possible solution is a 24 volt system. The solar panels are available as are 24 to 12 volt solid state converters. 73, Roger

Re: [Elecraft] OT: Small solar array to handle just the shack, computers, and lighting

2015-09-25 Thread Roger D Johnson
A possible solution is a 24 volt system. The solar panels are available as are 24 to 12 volt solid state converters. 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] K3: reverse 12 volt supply

2015-09-14 Thread Roger D Johnson
On 9/14/2015 2:42 PM, Roger D Johnson wrote: According to the schematic, there is a shunt diode on the PA board. Hopefully, it prevented the full 12 volts from appearing on the circuitry. The smoke probably came from the chokes ahead of the diode. 73, Roger On 9/13/2015 11:09 PM, Don

Re: [Elecraft] K3 ERR 12 V

2015-09-06 Thread Roger D Johnson
It's pretty easy to jumper around the pins. 73, Roger On 9/6/2015 8:13 AM, Joe Subich, W4TV wrote: What is you serial number? Intermittent ERR 12V is one early warning sign of the "burned 12V pins" on the KPAIO3 and KPA3 boards. If you have an early K3 that did not have the "gold pins" on

[Elecraft] KSYN3A Synthesizer problem?

2015-04-06 Thread Roger D Johnson
My new boards arrived today. I popped one into the K3 for some testing. I was especially interested in the low frequency performance as I like to DX the LF broadcasts from 153 to 279 kHz. What I found was that below 400 kHz, the noise level rises and at 100 kHz it's almost 20 over 9 on the S

Re: [Elecraft] K3 Shift and Width encoders sluggish

2015-03-13 Thread Roger D Johnson
The 4 encoders to the left of the main tuning knob all have a notchy feel to them whereas the RIT encoder feels smooth. Is this normal? Are the newest encoders notchy or smooth? Is the displayed frequency supposed to change when the RIT knob is turned even when RIT is off? 73, Roger

Re: [Elecraft] Tech Mode

2015-03-07 Thread Roger D Johnson
I think it's for Field Day or contests where someone else may be operating the rig. It keeps some of the more critical items a bit better hidden. 73, Roger On 3/7/2015 5:36 PM, Ken G Kopp wrote: I've wondered why there's an OFF mode for TECH MODE. Mine's never been off since I first turned

[Elecraft] PowerPoles

2015-02-17 Thread Roger D Johnson
There are two problems with the PowerPoles: 1. The contact pulls out of the housing due to improper assembly. 2. The completed plug assembly (contacts and housings) pulls out of the matching assembly on back of the K3. Most people having a problem don't specify which problem they're

Re: [Elecraft] CW in SSB mode

2015-02-12 Thread Roger D Johnson
It's normal, Dave. I've been trying to get Elecraft to change this for years. That and the adjustable bandwidth for the APF always seem to fall through the cracks. I finally bought a Autek QF-1A which helps immensely. 73, Roger On 2/12/2015 12:38 AM, dyarnes wrote: Hi All, I probably

Re: [Elecraft] OT: CW Skimmer

2015-02-08 Thread Roger D Johnson
I think very few hams could afford the KWM-2. I'll give Collins the credit for the innovation but I think the Heath SB series had a much bigger influence on the average ham. 73, Roger (former owner of the SB-101) On 2/7/2015 10:09 PM, Fred Jensen wrote: I'm working on my 62nd year as a ham

Re: [Elecraft] K3 Low output 30m

2015-01-21 Thread Roger D Johnson
I meant to say same filter on 30 and 20m. On 1/20/2015 3:49 PM, Roger D Johnson wrote: My K3 has always had low output on 30m (ca 90 watts). I checked the TXG (transmit gain) figures and 40m is 64, 30m is 103 and 20m is 30. The K3 uses the same lowpass filter on 30 and 40m. Is it possible mine

[Elecraft] K3 Low output 30m

2015-01-20 Thread Roger D Johnson
My K3 has always had low output on 30m (ca 90 watts). I checked the TXG (transmit gain) figures and 40m is 64, 30m is 103 and 20m is 30. The K3 uses the same lowpass filter on 30 and 40m. Is it possible mine rolls off too quickly at the low end? 73, Roger N1RJ

Re: [Elecraft] K3 13.8 VDC power

2014-12-23 Thread Roger D Johnson
It IS possible to send the K3 off to never-never land by removing the 12 volt input before shutting the radio off with the power switch. I've had it happen whilst mucking around behind my desk and accidentally pulling out the Anderson power-pole connector. If you've saved the settings using

[Elecraft] K3 no SSB

2014-08-26 Thread Roger D Johnson
I went to call VY2ZM on 75m SSB thia AM and nothing! I've gone thru all the checking proceedures I can think of including reloading software. I'm stumped. Any suggestions? 73, Roger __ Elecraft mailing list Home:

Re: [Elecraft] AT1 question

2014-06-06 Thread Roger D Johnson
Only if you have the attenuator terminated properly! On 6/6/2014 2:57 PM, Harlan wrote: It must be my old age setting in but I can't get my head on right. I have an AT1 attenuator I just finished assembling. My understanding of dB attenuation must be off. If I use an input of 1 volt,

Re: [Elecraft] K3 - Ergonomics

2014-04-04 Thread Roger D Johnson
I have only one small complaint about the ergonomics. I think the POWER button should be on the top left of the panel. My last two radios had it there and I was used to it. I've learned to use it at it's present location so it's a very minor gripe. 73 Roger

Re: [Elecraft] Button of no return

2014-03-13 Thread Roger D Johnson
Careful, Bill. You're about to be flamed by the Power Pole Police! You know, those that insist that insist that it takes 2700 lbs of force to disconnect PPs or that you, in your stupidity, have assembled the connectors improperly! I've had them come apart several times when futzing around the

Re: [Elecraft] Button of no return

2014-03-13 Thread Roger D Johnson
I do not dislike Power Poles and use them for many cords around my station. The problem is that my K3 is fed from the power supply using large (stiff) diameter conductors. Brushing up against these can cause them to disconnect from the K3. If the K3 is powered up, this can result in the K3

Re: [Elecraft] Button of no return

2014-03-13 Thread Roger D Johnson
cable to my K3 with a four inch or so piece of the supplied cable with the PP's in line crimped to it using vehicle cabling crimps. Provides flexibility at the K3 without adding any significant extra IR loss. Regards, Mike VP8NO On 13/03/2014 11:21, Roger D Johnson wrote: I do not dislike Power

Re: [Elecraft] Button of no return

2014-03-13 Thread Roger D Johnson
Page 63 of the manual. if you have anything on the ACC connector it must be removed for this to work. On 3/13/2014 11:15 AM, bwru...@gmail.com wrote: Can you tell me where to find the procedure just in case? 73 De Brian W3BW Brian F. Wruble, C.F.A. Leap and the net will appear. On Mar 13,

Re: [Elecraft] Powerpole police here....

2014-03-13 Thread Roger D Johnson
Ok...Let me ask YOU. Do you own a K3 and have you done this? 73, Roger On 3/13/2014 2:22 PM, Art Bross wrote: Careful, Bill. You're about to be flamed by the Power Pole Police! You know, those that insist that insist that it takes 2700 lbs of force to disconnect PPs or that you, in your

Re: [Elecraft] Powerpole police here....

2014-03-13 Thread Roger D Johnson
Or at least kill your idiotic comments! On 3/13/2014 2:53 PM, GRANT YOUNGMAN wrote: I kind of hope that Eric comes in and kills this thread. I have NEVER had the power poles “fall out” of the back of my K3. That said, I don’t pick up my radio and try to throw it across the room, I don’t have

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