Re: [Elecraft] Does KPA1500 have these KPA500 characteristics?

On 5/24/2018 7:30 PM, Wes Stewart wrote: I haven't measured IMD on my KPA500 either since I don't own two generators that are clean enough with the necessary power to do so. I evaluate IMD by looking at keying sidebands of a long series of dits, as I posted hear yesterday. Details of the

[Elecraft] Wanted: KXPA100

Looking for the Elecraft KXPA100 for sale. What have you? tnx and 73 Ed ~ k6sdw __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net

Re: [Elecraft] KX3 station for sale

The KX3 and the KXPA100 with internal tuner are sold now. The PX3-F is still for sale, looking for $550. Thanks all for the interest! 73 de Dave, W5SV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft

Re: [Elecraft] Does KPA1500 have these KPA500 characteristics?

I haven't measured IMD on my KPA500 either since I don't own two generators that are clean enough with the necessary power to do so. I would suspect, however, that the amp is cleaner that a K3(S) driving it. Wes  N7WS On 5/24/2018 7:01 PM, Bob McGraw K4TAX wrote: As to running the amp

Re: [Elecraft] Does KPA1500 have these KPA500 characteristics?

Eric, et & al: I have a KPA500 on the desk.  It is about 1 month old.   As to efficiency which is related to power output vs. power input, a simple ohms law calculation is all that's needed to see what is occurring.   During transmit, note the value of HV and the value of CURRENT.  Also note

[Elecraft] Does KPA1500 have these KPA500 characteristics?

While trying to run my KPA500 at full-tilt--but as cool as possible--in digital modes, I have noticed over the years that: 1). The KPA500 actually runs cooler at just-below-fault power output than it does at either 500 or even 400 watts output. 2)  The KPA500 runs substanitally cooler at a 1:1

Re: [Elecraft] K3 - USB

Hmmm. On the one rig USB and RS232 works fine. On the other rig RS232 works but not USB. N2TK, Tony -Original Message- From: N2TK, Tony [mailto:tony@verizon.net] Sent: Thursday, May 24, 2018 7:04 PM To: 'elecraft@mailman.qth.net' Subject: RE: [Elecraft] K3

Re: [Elecraft] K3 - USB

Tried swapping the KIO3B Main Board. Something on the board broke. Guess I need to order another board. N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of N2TK, Tony Sent: Thursday, May 24, 2018 6:49 PM To:

[Elecraft] K3 - USB

Hooked up my backup K3 so I could add a mod on the other K3. I can't connect to USB anymore with the backup K3. Verified that USB is selected in Config > RS232 > USB. Swapped the KIO3B Digital I/O board between the two rigs. I can't transfer the problem. The only thing plugged into both rigs

[Elecraft] K3 KIO3 Board

Anyone with a KIO3 board for a K3 , maybe left from having upgraded to the newer boards. I would be interested. Thank you Jorge HK4CZE Sent from my iPad __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft

Re: [Elecraft] K2 Build: Options Advice

Thanks all for the advice. I'm going to build the base K2 first. I'll just have to use resonant antennas or the kxpa100 w/internal tuner until the KAT2 has been added. ​--ae0mm​ ‐‐‐ Original Message ‐‐‐ On May 24, 2018 3:27 PM, Don Wilhelm wrote: > ​​ > >

Re: [Elecraft] K2 Build: Options Advice

There is no real disadvantage, other than the fact that the base K2 must work into a 50 ohm load for proper power control and proper PA loading. For that reason, I would suggest the KAT2 be the first of those options that you add. 73, Don W3FPR On 5/24/2018 2:44 PM, AE0MM via Elecraft

Re: [Elecraft] PX3 Screen Issue

It's a good thing it's under warranty. A screen from Elecraft parts is $500+. 73, John N1JM -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] Question on connection of P3 Tx Mon with KPA1500

Received my KPA1500 this week (#173). In process of reworking shack. Is there anyway to connect a Tx Mon to monitor both antennas? I’m aware I could place it between the K3S and the KPA1500. Just wondered if anyone has a dual setup (without buying a second P3). Thanks Paul - W1PEF

Re: [Elecraft] K2 Build: Options Advice

None at all. Add what you want at any time after the initial build. You'll have a better idea what you actually want after playing with the base K2 for awhile. Eric KE6US On 5/24/2018 11:44 AM, AE0MM via Elecraft wrote: I'm planning to build a K2/10 with the following options: KNB2 KAT2

[Elecraft] K2 Build: Options Advice

I'm planning to build a K2/10 with the following options: KNB2 KAT2 KAF2 Is there any disadvantage to building the base K2, then adding the options later? Thanks, --ae0mm __ Elecraft mailing list Home:

Re: [Elecraft] OT Tuner ranges

I've had several to ask in general,  "so what or when is the correct application for a  4:1 balun?"   The folded dipole is an excellent application and case for a 4:1 balun.  The uniform folded dipole feed impedance at resonance is ~300 ohms.  When erected less than 1/2 wavelength above earth

Re: [Elecraft] Terminators on empty outputs/connectors

DEMI recommends 50-ohm terms on unused outputs of its 4-way 10-MHz distribution amp. It uses MAR6 mmic's that output 10mw. 73, Ed From: Wes Stewart To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Terminators on empty outputs/connectors Message-ID:

Re: [Elecraft] Terminators on empty outputs/connectors

On 5/24/2018 1:46 AM, Clay Autery wrote: Putting in a hardware order... Question:  Is it recommended to put terminators on all/certain unused ports? K3s Antenna ports not being used? No Any others? GPS Distibution Amp (HP 58516a/HP58517a Unity Gain Distro Amp) ports not being used? It

Re: [Elecraft] OT Tuner ranges

Just depends on the Z required to match. Fact for T and L networks (a.k.a tuners) as the Z value decreases the loss increases. Acting as a 4 to 1 transformer it divides the Z by 4. Bob, K4TAX Sent from my iPhone > On May 24, 2018, at 12:06 PM, Ignacy wrote: > > There are

Re: [Elecraft] OT Tuner ranges

There are reports online that 1:1 has lower losses. My experience is that with lower-range tuners 1:1 does not cover some frequencies but 4:1 does. Ignacy, NO9E. -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing

Re: [Elecraft] Terminators on empty outputs/connectors

The HP GPS Splitters are amplified (unity gain), AND the documents say that all of the non-powered (typically all but port 1) ports are terminated with 200 Ohm resistors to simulate an antenna load (This is part of DC blocking the ports and/or "tricks" the amp into working when all ports

Re: [Elecraft] PX3 Screen Issue

I called them and we did some troubleshooting of the issue. I'm sending it back to them today. It's most likely a bad screen that will be replaced under warranty. On Thu, May 24, 2018 at 12:27 PM, bill steffey wrote: > > joe did anyone from elecraft get back to your email to

Re: [Elecraft] PX3 Screen Issue

joe did anyone from elecraft get back to your email to them??? or did you call them ??? At 05:55 PM 5/22/2018, Joe Caldwell wrote: I assembled my PX3 kit over the weekend and the screen is not displaying properly. It's almost as if the contrast is set way too high (if that's possible).

Re: [Elecraft] OT Tuner ranges

In general, I agree with Bob. For most situations, a 1:1 balun will produce a good match - but it all depends. The impedance you are matching is NOT the characteristic impedance of the parallel feedline, but the impedance seen at the end of the parallel feedline. That can vary from very low

[Elecraft] SubRX Freq on Panadapter

Is there any way to display the subRX frequency on the Panadapter preferably simultaneously with the main RX freq that is already there? Thanks and... 73 de K1AY Chris -- Life is like Linux - it never stands still. __ Elecraft mailing

Re: [Elecraft] OT Tuner ranges

My findings and applications agree with Victor's statement that a 1:1 current balun, specifically a Guanella balun design with added common mode choke is the preference for using a tuner to feed a balanced or open wire line.    For the life of me, I have never been able to understand the

Re: [Elecraft] Tuner ranges

I believe they are the same, the difference noted is due to the different paths to the antenna. Wayne answered this question for me a couple years ago. Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles From:

Re: [Elecraft] No Tune Power Output While Split in Data Mode

Why does it matter the need?  It's strange behavior and apparently inconsistent between different radios.  Besides FT8 Split does use the radio split feature although it's unrelated to this issue. On 5/23/2018 3:36 PM, Don Wilhelm wrote: When using DATA A or AFSK A, you are normally working

Re: [Elecraft] Terminators on empty outputs/connectors

I wouldn't say they were self-terminating, but more that they don't care.  If you have a multi-port passive splitter then I would terminate unused ports to ensure proper splitting.  Maybe your GPS distribution amp too as it may be an amp driving a passive splitter inside. Wes  N7WS On

[Elecraft] No Tune Power Output While Split in Data Mode

"Simple logic. One should (is supposed to) listen on the frequency before transmitting. Can't do this if one is configured to receive on a different frequency. " Sorry, but that's a very "old school" way of thinking. With digital modes that use VFO split operation the usual way to check if

Re: [Elecraft] No Tune Power Output While Split in Data Mode

You're right, sorta. I didn't try it on all bands, but it happens on 6-meters but not 10-meters. Power cycling puts it back in this mode.  If you re-enable Split after a non-split tune where it does put out power, then go back to Split it will tune. I wouldn't call it a feature, I'd call it a

Re: [Elecraft] K3 FT8 WSJT-X Setup

Thanks to Dave N4DB for the tip!! It was just the MIC gain level. I can now TX. So hopefully I am on my way!! TNX Will WC2L On 5/24/2018 6:38 AM, William Liporace wrote: Good Morning, I have been looking and without success been able to get the K3 to TX on FT8. I do have the Enhanced I/O

Re: [Elecraft] K3 FT8 WSJT-X Setup

Will, Does the K3 go into transmit? If so, set the audio levels correctly. You must achieve 4 bars solid on the ALC meter with the 5th bar flashing. There are guidelines for doing that on my website www.w3fpr.com. Scroll to the bottom article in the left column and click on the link. 73,

[Elecraft] K3 FT8 WSJT-X Setup

Good Morning, I have been looking and without success been able to get the K3 to TX on FT8. I do have the Enhanced I/O board installed, so single USB connection to the radio. I have it decoding very well. I have tried USB and DATA A. Can someone point me in the right direction?? PC is

Re: [Elecraft] P3: How to Get Frequency on top center of P3

Don, Problem corrected. The K3S was set to the wrong baud rate. Thanks! Mark WU6R Sent from my iPad > On May 24, 2018, at 12:57 AM, Don Wilhelm wrote: > > Mark, > > Using the cabling shown on page 6 of the P3 manual, you must connect the > computer to the P3 with

[Elecraft] Terminators on empty outputs/connectors

Putting in a hardware order... Question:  Is it recommended to put terminators on all/certain unused ports? K3s Antenna ports not being used?  Any others? GPS Distibution Amp (HP 58516a/HP58517a Unity Gain Distro Amp) ports not being used? Output ports on GPSDO and NTP servers (10MHz and

Re: [Elecraft] Tuner ranges

I believe that the K3 tuner does have more range than the one in the KAT500. My experience with this kind of system (tuner -> balun -> open wire line) is that the 1:1 balun works much better from the point of view of losses and choking off RF in the shack. What do you mean that the 4:1 balun