[Elecraft] spoke to soon...K2 problem

Ron, AC7AC, wrote It's not a sign of a low quality supply at all, but merely one that has a transformer in it. I had major problems with power supplies here a expensive kenwood switch mode and a not so expensive samlex switch mode gave me magnetic interference + a lot of rf interference

[Elecraft] spoke to soon...K2 problem

Thanks for the info Tom it was a SEC 1223 but i no longer have the ps. Mick M1MGD K2#4785 K1#1532 G-qrp 11355Arci 12343 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr.

[Elecraft] K2 filter control

Hello all, While setting up N1MM to work with my just finished K2 I found the following 'problems': - Wide/Narrow filter selection works just after typing the right commands, but not after restarting N1MM. In the ini file the commands are OK. - Auto update TRX offset

[Elecraft] spectrogram

In addition to aligning the IF's for the K2 can Spectrogram also show the Christmas Tree effect for SSB? How about the rise and fall of the CW note? What about in receive mode. Can it also show these for the received station? 73s john-n3drk ___

Re: [Elecraft] spectrogram

John, Sjpectrogram is a FFT (Fast Fourier Transform) spectrum analyzer program. It's display is amplitude versus frequency. What you need to display the Christmas Tree and CW waveforms is an oscilloscope display. In the case of the Christmas Tree, the oscilloscope is set up to display RF

[Elecraft] KNB2 - can´t bring it to work

I have sharp pulses on all bands hitting the band about once per second, which the noiseblanker of my old IC 735 kills, but not so my K2 S/N 4765. I can - more or less - read a circuit diagramm (I don´t understand each components function in detail yet) I´ve tried some signal tracing, couldn´t

RE: [Elecraft] spectrogram

John, No - what you are asking about is a time-domain display as you would see on an oscilloscope, Spectrogram provides a frequency-domain display by computing the FFT of the input signal - i.e. Spectrogram is a spectrum analyzer, but it is limited to audio frequencies. 73, Don W3FPR

[Elecraft] Let me build a K2 for you.

I have built more than 100 K2's and many of the other Elecraft kits. Let me build one for you. My prices are reasonable and you receive a radio fully built and ready to play. 73 Alan W1HYV ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net

[Elecraft] Noise Blanker gain

About the noise blanker: Mine is working fine on all bands except for a particular noise on 40 m. It is killed completly by the NB on all other bands. But it seems that the gain is not always (works some time) sufficient to trigger it at 7,050 MHz. That noise is rising to full strength in about

[Elecraft] It's time to think Hamvention!

This is the announcement for the 2006 QRP-ARCI / FISTS Dayton Hamvention rooms. We have lots of rooms at the Holiday Inn and Homewood Suite in Fairborn Ohio, about 17.18 miles from the lovely HARA arena! The details, information and room request form are located:

[Elecraft] KPA100 right angle pin insertion

Hello All- I've been trying to insert the right-angle PCB pins into the red/ black housings. Unless the drawings are wrong, it looks like the pins protrude from the top of the assembly. I find this impossible to achieve because of a bent-up catch on the top of the pins which prevent them

[Elecraft] Low RF Output on 20 and 30

I have just finished my second K2, #5113. I am getting only 0.30 watts output on 20 and 30. Adjustment of L8 and L9 and C21 and C23 has no affect. All other bands work fine and give me the RF output called for. Any suggestions on where to look? Jonathan Gottlieb WA3WDK

Re: [Elecraft] KNB2 - can´t bring it to work

Karsten, Sounds like the noise is outside of the KNB2's range. There is a mod for wider spaced noise like you describe. See http://www.qslnet.de/member/la3za/K2/modAny.html#KNB2 What you describe sounds like an electric fence. There was some discusion about an improved noise blanker on the

Re: [Elecraft] KNB2 - can´t bring i t to work

Hi Karsten, I have found the same thing. I have bad power line noise. Sometime the K2 NB takes it all out, sometimes not. My IC-735 takes all the noise out. I get the KNB2 to work sometimes by putting the pre-amp ON, then try both high and low thresholds, and both timings. 73 de K3YT

Re: [Elecraft] Low RF Output on 20 and 30

Hi Jonathan, I had pretty much the same problem with 20 and 30. While I pride myself on good soldering techniques, it was a poor solder job in the band pass filter for 20m/30m. Pay close attention to those components. 73, Joe, aa4nn -- I have just finished my

Re: [Elecraft] Spoke too soon... K2 problem

Hi Ed, It's a Radio Shack 13.5 volt, 1-amp supply. I was using it mainly for receive and test transmitting, up to about 2 or 3 watts, for which it worked great with the K1. For what it's worth, the supply has a good long cord, two of them actually, about 6 feet of cord from the outlet

[Elecraft] What does SWR-protected mean?

I noticed on the Elecraft website, that both the K1 and K2 specifications use the term SWR-protected in the description of the PA transistors. What does this mean, exactly? If the K1 or K2 is presented with high SWR, will the radio shut down or shut off or unkey or something? Thanks and

[Elecraft] DMM advice?

Hello all... Have been lurking here for a while soaking up some wisdom in anticipation of receipt of my K2. As I lost all of my tools etc. in Katrina, I'm in the process of re-stocking, including a new digital multimeter. I've poked around on the net some, but the choices are truly bewildering.

Re: [Elecraft] spectrogram

Listed below is a link for a Windows based Oscilloscope. This can be used for transmitting but I do not know about receiving. What do you guys think? By the way thanks to all for responding to my original post. http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=3428 73s john-n3drk -

Re: [Elecraft] DMM advice?

Check out the BK 2707A which has exceptional features/capabilities; too many to mention here, for around $80USD. Used here for 3+ years. de Joe, aa4nn - Have been lurking here for a while soaking up some wisdom in anticipation of receipt of my K2.

RE: [Elecraft] spoke to soon...K2 problem

Switchers are a different story. And you remind us all the high quality doesn't necessarily go with high price. That's why I still use a big, clunky ol' linear supply sitting under my desk. Got enough noise on the bands already G Ron AC7AC -Original Message- I had major problems with

RE: [Elecraft] What does SWR-protected mean?

Stephanie, VA3UXB wrote: I noticed on the Elecraft website, that both the K1 and K2 specifications use the term SWR-protected in the description of the PA transistors. What does this mean, exactly? If the K1 or K2 is presented with high SWR, will the radio shut down or shut off or unkey or

Re: [Elecraft] DMM advice?

Louis - The Velleman 890L is a versatile instrument at a reasonable price. It has all the usual functions plus capacitance measurement, transistor hFE, temperature (includes probe), frequency to 20 KHz, current ranges to 20 amperes, and auto-shutoff so you don't run the battery down.

RE: [Elecraft] DMM advice?

Louis, KE5GIU asked: Have been lurking here for a while soaking up some wisdom in anticipation of receipt of my K2. As I lost all of my tools etc. in Katrina, I'm in the process of re-stocking, including a new digital multimeter. I've poked around on the net some, but the choices are truly

Re: [Elecraft] KNB2 - can´t bring it to work

Thank you Darrell, I checked the pulse width, and in fact it is 500 usec or broader, while the KNB2 spec is 10 to 70 usec. Seems I have to play with C11 and C12. Still, if could get hold of a diagram, that shows what to measure where, it would be appriciated. 73 Karsten DK4AS Darrell

RE: [Elecraft] DMM advice?

Louis, I picked up an ESCORT EDM-163 at Dayton several years ago (new) at a good price (about $65) for the features it offered - Handheld, Auto power off, auto-ranging with manual override, bargraph display as well as digital, current measurement to 10 Amps and down to 200 uA, diode forward

Re: [Elecraft] What does SWR-protected mean?

It's usually not that drastic, though. The real meaning is that transmit power folds back when the K1/2 sees high SWR in order to protect the PA transistors. Power doesn't necessarily go to zero unless a really severe SWR was encountered. I made pretty good use of this in the NAQP contest

[Elecraft] K2 #5272 QRV

Hi! I get my K2 #5272 ready. Few picture found on my website, http://oh6hop.net/k2 Options on my k2: ssb, 160m, nb, dsp, 100w pa. Vy fb kit and really good radio. Cu in cw! 73 es gl dx de oh6hop, Jarno ___ Elecraft mailing list Post to:

RE: [Elecraft] DMM advice?

Just a quick note here. I got a real cheap DMM for free wih my soldering iron with way too few digits to be of use. However, I bought a mini dmm when I was in Japan that is still my favorite when I can find it. Most of my measurements (and repairs, I've found) are things like, Is there power? or,

RE: [Elecraft] OT: Antenna Question

Harlan, I did not see any responses on the reflector, although you may have gotten off-reflector comments. For best results you should have the wire spaced a bit from the supporting stucture - while it will likely work stapled to the eaves, it will likely change tuning on you as the weather

Re: [Elecraft] spectrogram

Any time you use an audio-based oscilloscope, monitoring the AF output from your receiver, you have to be aware that whatever you see on-screen is not only representative of the signal itself BUT to a bigger extent it reflects those characteristics placed upon it by the receiver itself (it's

Re: [Elecraft] DMM advice?

Just remember: a cheap DMM is so much nicer than having no DMM. I'm not sure I agree with this statement. During alignment test II of my K2, my cheap DMM went wonky on me. Looking for VCO voltages on R30, and no matter what I tried, I only got a few dozen millivolts. So I checked for

RE: [Elecraft] OT: Antenna Question

Harlan, Loops tend to couple well to other things within the loop. One problem you may experience running a loop around the eves of your house will be that you're antenna will pick up any noise sources within the house very well, and will couple very well to electronics in the house ... i.e.

[Elecraft] Elecraft CW Net Report for January 22nd and 23rd, 2006

Good Evening, Forty meters was interesting just now. Tom was good copy before the net and then got weaker. Next check in was Ric from Ontario. Lately I've needed a relay to copy him. Tom tried next to no avail. I think his radio wave was dropping well into the Pacific and the Atlantic.

[Elecraft] K2 communication problem

Up until recently I have been able to use my pc with my K2 S/N 4719. Now, I get communication errors when I try to use AC Log or Ham Radio Deluxe. I am using the KIO2 in the K2 and have the KPA100/KAT100 in an EC2 case, and all of this has been working great until about a week ago. I even tried

RE: [Elecraft] K2 communication problem

Mark, In the K2 menu PORT ON is about the only thing that you can do. Try Hyperterm as indicated in the KIO2 manual and see what happens - that can tell a lot about what is going on. Obvious questions: do you have the computer port parameters set correctly?, are you using the correct port?