Re: [Elecraft] Talking filter Bandwidths

Morning Deni, The bandwidth of a filter (in whatever form) has always been taken to mean the bandwidth between the upper and lower 3db points of the filter's attenuation vs frequency response, the 0db point being at the frequency of least attenuation in the pass band. One hopes that the passband

Re: [Elecraft] 6th Annual QRP Contest Calendar for 2005

Hello, When ordering the calendar, please make sure you use the correct PayPal button. There is a US VE button and now there is a DX button. Shipment of calendars should be at the end of the month. www.n3epa.org 72 Ron de N3EPA EPA QRP Club El Presidente' [EMAIL PROTECTED] www.n3epa.org

[Elecraft] It works again :-)

Hi all, Just thought I would let you know I fixed my problem with the 60m and 160m installs. I checked and rechecked everything and all seemed fine which had me scratching my head. In the end, the problem was the seating of the 60m board. I think I had the 8 pin header connected but not the 3

Re: [Elecraft] It works again :-)

Ian, Double check C75 on the RF board - be certain it is 470 pf (471). You may also want to check all the VCO range capacitors (C71 thru C75) while you are at it too - you did change C71 to 120 pf did you not? Nothing in the bandpass filter for 160 meters should have changed due to the

[Elecraft] Re: K2 #4472 4 mhz alighment resolved

I finaelecraftlly got a zero beat on the www 10mhz signal and the K2 display reads 1000 at the beat tone. I had some problems as shown below. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list.

Re:[elecraft] two problems K2 sn 4421

Hi All Have two problems with my new K2 1) Current limit operates at 2.5A where-ever I set the limit 2) Filter 4 always sets at approx 1kHz bandwidth, using Spectrogram. Set up okay initially, but now faulty Grateful for any suggestions 73 Bryan G3AKF

Re: [Elecraft] K2 CAT commands

I need a list of K2 CAT commands including the commands that represent the pressing of a key on the K2. I can't find it on the Elecraft site but I know it exists somewhere. Can someone give me a lead to where it is? Hi Chas, Did you look for this manual? http://www.elecraft.com/manual/KIO2

Re: [Elecraft] Talking filter Bandwidths

Deni In the past, the -6 dB number was usually paired with a -60 dB number to calculate the shape factor of the filter. It would be the -60dB bw divided by the -6 dB bw, to give a shape factor somewhere between 1 (vertical sided passband) and maybe 2 at the worst. Not sure where the -3dB comes

[Elecraft] Neat Backpack idea

Just found this in an odd search and thought some others might be interested in it as well. A solar backpack, they say it provides 2.5 watts, might be an interesting way to keep a small SLA battery Charged, or maybe even the K2 on it's own as well as carry some of the other operating needs in one

Re: [Elecraft] Talking filter Bandwidths

Bob and all, The proper point is the 'halfway' point - half the power is -3 dB (10 log 0.5) but half the voltage is -6 dB (20 log 0.5). The -3dB point would be used when plotting power curves, while the -6db point is correct for voltage or current plots. Typical filters usually assume a

[Elecraft] PSK31 question

Question about transmitter drive setup. I'm about to go on the air with the K2 Power knob full clockwise, and the soundcard drive (Digipan) set for about 1A draw on key down. Is that right? Dan / WG4S / K2 #2456 with KPSK2, er, ah KSB2 ___ Elecraft

Re: [Elecraft] PSK31 question

I never ran across that method .. what I did (and seems to work OK and sound reasonable) is to set power knob to desired power, then adjust sound card level to just where agc blinks first LED .. de John W1RT #3906 On Sat, 13 Nov 2004 15:52:33 -0500, Dan Barker [EMAIL PROTECTED] wrote: Question

[Elecraft] K2 feature request

I have a request for a K2 feature. I have a K2 with KPA100 and KAT100 in separate EC2. Currently, if the KAT100 is installed, the KAT2 just switches to through mode (CALP), fixed to ant1. I recently bought an amp and find that neither the amp, nor a typical antenna, is cleanly 50 ohms and hence

[Elecraft] K2 Control Board

K2 manual in parts listing shows an R22 , an 82K resistor. I see no reference to this in the control board assembly or a place on the board , or I missed it. Glenn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a

Re: [Elecraft] K2 Control Board

Look at the 3rd step, page 15. R22 replaces a silk screened diode. de Joe, aa4nn -- : [Elecraft] K2 Control Board K2 manual in parts listing shows an R22 , an 82K resistor. I see no reference to this in the control board assembly or a place on the board ,

RE: [Elecraft] PSK31 question

Ha! I fire up PSK31 from time to time, make a contact, then it's back to CW for the next six months! Some modes, like some gear, are fun to tinker with in order to master the techniques of making them work, but that doesn't mean that I'll enjoy using them on the air all that much. As for

[Elecraft] That should be Shortwave Receiver Kit HIHIHi

Hi Elecraft Gang Is there a plan in the works for a shortwave receiver kit??? 73.de.Fred N9TA PS: Next time I'll wear my glasses when I'm emailin' ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be

Re: [Elecraft] PSK31 question

What I do is to set the power for 5watts in qrpmode and adjust PC to the point where output just drop a little bit. I think this will be almost the same as set power for 10 watts and adjust pcoutput for 5watts. Somehow I have never liked the second method because I like to limit my TX the hard

Re: [Elecraft] K2 Control Board

Dan, Don't throw that resistor away yet!!! Yes, I agree that Acrobat Reader is useful for stuff like that, BUT ... Check the 3rd step on page 15 of your Rev F manual - you will see that R22 82k is placed into the holes marked 'D3'. 73, Don W3FPR - Original Message - No r22 on

Re: [Elecraft] K2 feature request

Geert Jan de Groot wrote: I recently bought an amp and find that neither the amp, nor a typical antenna, is cleanly 50 ohms and hence there's work for the tuner. If I enable the amp, I need to autotune to the input impedance of the amp, if I leave it offline, I need to tune to the impedance

RE: [Elecraft] Shortwave Reveiver kit ???

If so, I will buy one...at least one, maybe TWO!!! 73 John K7FD http://webpages.charter.net/peanut ... all shortwave, all the time! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fred Bennett N9TA Sent: Saturday, November 13, 2004 1:51 PM To: Elecraft

RE: [Elecraft] Shortwave Reveiver kit ???

The KX1 covers a lot of the SWL frequencies around the 40/30 meter bands. Not a true SWL receiver, but it does a great job with both SSB and AM and fits in your pocket. And, of course, if you get bored with SWL-ing you can do a little Hamming on the 40/30/20 meter CW bands too... Ron AC7AC

[Elecraft] WA3WSJ on Lancaster County Covered 3- Bridge Tour

Hello all, Look for me tomorrow 11/14 activating three Lancaster County Covered Bridges. 7.280 and 14.280 + - qrm 72/73, Ed, WA3WSJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber

[Elecraft] Elecraft CW Net Announcement

Good Evening, Another hectic week in Oregon but the weather is quite nice above 1200 feet. Down below it is gloom and mist but up here the stars are bright and the light pollution is minimal. Hopefully the bands will be as great as they were on Thursday and Friday. Then we can have fun

Re: [Elecraft] Talking filter Bandwidths

For a lot of us (I have seen this discussed before) the 3 db points are fairly useless as a real predictor of performance. The 6 and 60 db points do a much better job, telling where the skirts start, and where they are diving. I will never forget my disappointment in the Collins 500 kHz CW