Re: [Elecraft] Spam bounce?
It seems that the general settings of spam filtering is the culprit. Some ISP blocking mass freemail providers (yahoo.com, aol.com etc.). An email address change is the solution. 73 Martin OK1RR F5UL napsal(a): May be out of order on this reflector, but yesterday I had a mssage to post concerning a big trouble with my K2 SN 4498 and the following was all what I got in return...!!! So what can I do to post an e-mail from Europe? Thank you very much for the pass band ! F5UL -- Reporting-MTA: dns; wanadoo.fr X-SMTP-Server-Queue-ID: 8B4D31C00152 X-SMTP-Server-Sender: rfc822; [EMAIL PROTECTED] Arrival-Date: Fri, 8 Apr 2005 22:47:17 +0200 (CEST) Final-Recipient: rfc822; elecraft@mailman.qth.net Action: failed Status: 5.0.0 Diagnostic-Code: X-SMTP-Server; host - Hello the list, Up to this morning, this K2 was a nice and good worker, with during the last six month about a thousand QSO under his belt ! But this morning turning it on, I just got a vigorous howl ( very low freq nois !). I turn it off, and on after a few second. The Rx start normaly and the noise start again after a few second. Re-turn off and tunr on and no howl and Rx is working correctly! The set was in CW mode so I turn down power (to abt 2/3 watts) and close the key... The result is correct on 1.8, 3.5, 7.0 but nil on the rest of the bands. Closing the key a little longer on 7.0 the rig goes to curent overange in abt 10/12 second and power fall down to zero. So power off, open the rig, remove the bottom cover and before removing the heat sink just check the resistance of driver and PAOn Q6 (driver) E to Gnd 1.3 ohm, B to Gnd 76/80 ohms, and C to Gnd 500 ohms. On Pa C to Gnd 600 ohms, B to Gnd 120/130 ohm E to Gnd 0 (it's normal!)They seems to be normals but any time I close the key I get High Cur and power out ZERO !! I do n,ot know what to do so I will wait till tomorow and hope to get some indications from the list ! Thanks in advance guy, BCNU 72 Bob/F5UL ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Spam bounce?
In a message dated 09/04/05 09:10:45 GMT Daylight Time, [EMAIL PROTECTED] writes: But this morning turning it on, I just got a vigorous howl ( very low freq nois !). I turn it off, and on after a few second. The Rx start normaly and the noise start again after a few second. Re-turn off and tunr on and no howl and Rx is working correctly! - With the RX problem a good point to start with would be to check the PSU as the symptoms can sometimes be caused by a very low supply voltage. A common problem with battery powered equipment is to have LF instability when the batteries were dying. The same can apply with a defective PSU. To Martin, OK1RR, I can assure you that AOL are not a freemail provider, far from it as they charge more than many others for the service. Bob, G3VVT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Spam bounce?
AFIK, and certainly in UK, the Wanadoo ISP is far from Freemail. I'm on Freeserve which is the UK Name for Wanadoo and I have never experienced a bounce because of my ISP's policies. I can't offer any good reasons why they are bouncing though sO I suppose I had better stop using bandwidth. 73 Mike G8NXD -- On 9 Apr 2005 at 10:09, Martin Kratoska wrote: It seems that the general settings of spam filtering is the culprit. Some ISP blocking mass freemail providers (yahoo.com, aol.com etc.). An email address change is the solution. 73 Martin OK1RR F5UL napsal(a): May be out of order on this reflector, but yesterday I had a mssage to post concerning a big trouble with my K2 SN 4498 and the following was all what I got in return...!!! So what can I do to post an e-mail from Europe? Thank you very much for the pass band ! F5UL -- Reporting-MTA: dns; wanadoo.fr X-SMTP-Server-Queue-ID: 8B4D31C00152 X-SMTP-Server-Sender: rfc822; [EMAIL PROTECTED] Arrival-Date: Fri, 8 Apr 2005 22:47:17 +0200 (CEST) Final-Recipient: rfc822; elecraft@mailman.qth.net Action: failed Status: 5.0.0 Diagnostic-Code: X-SMTP-Server; host - Hello the list, Up to this morning, this K2 was a nice and good worker, with during the last six month about a thousand QSO under his belt ! But this morning turning it on, I just got a vigorous howl ( very low freq nois !). I turn it off, and on after a few second. The Rx start normaly and the noise start again after a few second. Re-turn off and tunr on and no howl and Rx is working correctly! The set was in CW mode so I turn down power (to abt 2/3 watts) and close the key... The result is correct on 1.8, 3.5, 7.0 but nil on the rest of the bands. Closing the key a little longer on 7.0 the rig goes to curent overange in abt 10/12 second and power fall down to zero. So power off, open the rig, remove the bottom cover and before removing the heat sink just check the resistance of driver and PAOn Q6 (driver) E to Gnd 1.3 ohm, B to Gnd 76/80 ohms, and C to Gnd 500 ohms. On Pa C to Gnd 600 ohms, B to Gnd 120/130 ohm E to Gnd 0 (it's normal!)They seems to be normals but any time I close the key I get High Cur and power out ZERO !! I do n,ot know what to do so I will wait till tomorow and hope to get some indications from the list ! Thanks in advance guy, BCNU 72 Bob/F5UL ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft XV144 and XV50 - TX Noise and birdie
Hello all, A few months back I put together the XV144 and XV50 transverters. Both work fine but following some comments from very local stations I decided to make one or two checks. I am comparing these tranverters with my own original 144Mhz transverter which I built about 15 years ago. With no input to either transverter but with the input terminated at 50 ohm and with a resonant antenna connected, listening on another receiver with an antenna connected reveals quite a high hiss or mixing noise when the PTT line is operated. This happens on both the 50 and 144 Mhz transverters. If I operate the PTT line of my old home brew transverter there is no such noise or if any it is very much reduced. I am sure the hiss (phase/mixer noise) is many db down on the normal output level but it is nevertheless much greater than my original home made unit. Secondly, and somewhat more worrying is a drifting birdie that both the XV50 and the XV144 produce. Once again I know these are many db down on the normal output but the 144 Mhz birdie is of sufficient strength that a station 15 miles away heard it whilst trying to work an EME QSO. It drifted across the frequency he was using. On my particular transverters these birdies occur at about 50.130 Mhz on the XV50 and about 144.140 Mhz. They seem to drift LF during TX and at a rate of about 10 Khz in 5 minutes. I wonder if anyone else has made any observations and come up with a cure. I all other aspects the transverters are excellent and totally stable. Indeed, the 144 Mhz version is fitted with a crystal oven. I know there was a thread on here a month or two back regarding phase noise being heard by stations within a 20 Km radius during high levels of 144 Mhz activity. Has anyone else got any more comments or observations to make. I know that my observations are not exactly 'scientific' but there are made by comparison with a different transverter which does not exhibit these problems. During all these tests the transverters have had their inputs and outputs correctly terminated with no 28 Mhz drive source connected. Sorry for the long waffle. Any comments most welcome. Best 73, Ken G3WCS. -- Ken G3WCS IO83rh : Cheshire : NW England (+44) (0)870 765 1632 (home) (+44) (0)7733 400 950 (mobile sms) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] AGC Alignment
Hi all, I'm assembling the K2 here (SN 4836) and came to the first check/alignment. No smoke here so far, but when adjusting the setting for the AGC as described on page 47 I became suspicious about the alignment procedure. Adjust R1 for 3.80 V on the DMM. I turned R1 and reached the end and got stuck on 3.78V. The absolute value of 3.78 doesn't worry me but that I ended up at the limit of the R1. I thought I should check all variables like DC voltage which should be 8V (was 7.98V so OK). Checked the resistors (mainly RP6 / 5.1K) and, RF gain potentiometer 5K and the R1 (50K). All looked fine. So what's wrong? I started making calculation on the resistor dividing network and came to the conclusion that the maximum voltage (theoretically) could be close to 3.82V when the RF-gain is fully CW (0 Ohm) and the R1 is set fully CCW (50K). I wonder if something is wrong here and if not, why was the alignement procerdure setup like this (it could heve been something like: Set RF-Gain full CW, R1 full CCW and check the voltage at pin 5 of U2 to be close to3.80V)? Or did I miss some errata info? Please help. Thanks in advance Evert, PA2KW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] AGC Alignment
When recently building mine I had a similar problem. I moved my ground connection to one of the small loops on the board and that was enough to give me a higher reading and tweak R1 into range. Seems that the Ground that I had picked wasn't as good of a ground as I thought! There certainly may be another reason for your problem as well, but just thought I would offer my experience. Hope it helps! Mark, NK8Q K2 #4786 Evert Bakker wrote: Hi all, I'm assembling the K2 here (SN 4836) and came to the first check/alignment. No smoke here so far, but when adjusting the setting for the AGC as described on page 47 I became suspicious about the alignment procedure. Adjust R1 for 3.80 V on the DMM. I turned R1 and reached the end and got stuck on 3.78V. The absolute value of 3.78 doesn't worry me but that I ended up at the limit of the R1. I thought I should check all variables like DC voltage which should be 8V (was 7.98V so OK). Checked the resistors (mainly RP6 / 5.1K) and, RF gain potentiometer 5K and the R1 (50K). All looked fine. So what's wrong? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] AGC Alignment
Evert, If RP6 is on the high side of its tolerance and/or R1 is on the low side combined with a low 8R voltage, you may not be able to achive the 3.80 volt level. 3.75 to 3.78 volts is probably OK for your initial adjustment. I fine-tune my setting later so there is no AGC action with internal receiver noise and usually end up with a setting somewhere between 3.7 and 3.75 volts, although some particularly hot receivers must be set as low as 3.6 volts. To assure no AGC action on internal noise, remove the antenna, seto the RF gain fully CW and AF Gain up until noise can be heard - then toggle the AGC off/on by pressing AGC and PRE/ATT buttons together. Adjust the AGC Threshold just below the point where no change in noise is observed. Be certain the set CAL S Lo and CAL S Hi after changing the AGC Threshold setting. 73, Don W3FPR -Original Message- I'm assembling the K2 here (SN 4836) and came to the first check/alignment. No smoke here so far, but when adjusting the setting for the AGC as described on page 47 I became suspicious about the alignment procedure. Adjust R1 for 3.80 V on the DMM. I turned R1 and reached the end and got stuck on 3.78V. The absolute value of 3.78 doesn't worry me but that I ended up at the limit of the R1. I thought I should check all variables like DC voltage which should be 8V (was 7.98V so OK). Checked the resistors (mainly RP6 / 5.1K) and, RF gain potentiometer 5K and the R1 (50K). All looked fine. So what's wrong? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] S-meter alignment
Hi all, May be I'm to critical but lets try once more. After finishing the AGC Threshold setting, the next alignment is the S-meter. When completing the last CAL-S-HI step, and setting the RF Gain potentiometer back to full CCW, only led nr. 9 lits and not nr 10. Trying to correct this I pressed the menu button and immediately led nr 9 goes off and led nr. 8 lits (Huh??). Rotating the VFO knob to search for the CAL mode, led nr 8 switched off and led nr 10 comes on again. To be short, I tried many times to get the required result but there seems to be an instability somewhere in the circuit. I checked the supply voltage (13.8V) and the two regulators on the Control Board to see if they were producing accesive noise at the outputs, but they looked ok (less than 2 mV noise and limited by the scoop, Tek 2465B). Has anybody out there a slightest idea what I'm doing wrong (or even worse)? Evert, PA2KW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] S-meter alignment
Evert, I don't think you are doing anything wrong - but the input circuit that drive the AGC mixer is not yet constructed, and the open signal line may just be picking up local noise. The best advice I can give on the S-meter alignment is - Just set it approximately now, then re-do it after completing the receiver (next assembly process). I too have observed that it seems a bit unstable at the point of construction where you are insructed to set it. While this place in the manual is the best place to become familiar with the menu items, I do not believe it is the best place for 'final' adjustments - better to wait until you have the K2 completed and then repeat the settings for AGC Threshold, CAL S Lo and CAL S Hi. 73, Don W3FPR -Original Message- May be I'm to critical but lets try once more. After finishing the AGC Threshold setting, the next alignment is the S-meter. When completing the last CAL-S-HI step, and setting the RF Gain potentiometer back to full CCW, only led nr. 9 lits and not nr 10. Trying to correct this I pressed the menu button and immediately led nr 9 goes off and led nr. 8 lits (Huh??). Rotating the VFO knob to search for the CAL mode, led nr 8 switched off and led nr 10 comes on again. To be short, I tried many times to get the required result but there seems to be an instability somewhere in the circuit. I checked the supply voltage (13.8V) and the two regulators on the Control Board to see if they were producing accesive noise at the outputs, but they looked ok (less than 2 mV noise and limited by the scoop, Tek 2465B). Has anybody out there a slightest idea what I'm doing wrong (or even worse)? Evert, PA2KW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] DEpedition Band Schedule
Just worked Mike on 40 at 5 Watts !! Thanks Mike I needed DE for my 2xqrp WAS. Just proves that their is life in Delaware (even if it had to be imported) He's at 7.040 calling CQ Tom WB2QDG K2 1103 - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Thursday, April 07, 2005 9:23 AM Subject: [Elecraft] DEpedition Band Schedule Here's a repost of my planned operating schedule from DE this weekend. I will adhere to this as long as conditions (propogation and activity) allow. Callsign is NJ2OM/3. GMT Band *** Will check 10m at the top of each hr *** SAT 12:00 40 13:00 14:00 15:00 16:00 20 / 15 17:00 18:00 19:00 OFF 20:00 OFF 21:00 15 / 20 22:00 23:00 40 SUN 0:00 1:00 2:00 80 3:00 4:00 OFF will check 160m @ 04Z before going to bed 5:00 OFF 6:00 OFF 7:00 OFF 8:00 OFF 9:00 OFF 10:00 OFF 11:00 OFF 12:00 80 / 40 23:00 40 14:00 15:00 16:00 20 17:00 OFF 18:00 OFF 19:00 15 / 20 20:00 21:00 22:00 23:00 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Fun
I've heard it said that building a K2 is more fun that operating. Building mine was a genuine HOOT and I'm going to get more accessories to build, but I beg to differ about the operating. In the past couple of days I've made about 25 QSO's, mostly DX, and am having GREAT FUN operating QRP - well, 15 watts. I've worked 90% of the stations I've called and am getting nice reports. With 10 different entities worked so far, DXCC is now in the sights! Worked all the JA's I could hear on 40 m in the contest this morning. One problem is that when I hit PRE/ATT button, audio is attenuated even more on PRE than on ATT, certainly not louder. Randy W6SJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Spam bounce?
You cannot be serious. To suggest someone changes his email address and ISP to solve the problem with the spam filtering of this reflector is a severe case of the tail wagging the dog, in my opinion. Julian, G4ILO Martin Kratoska [EMAIL PROTECTED] wrote: It seems that the general settings of spam filtering is the culprit. Some ISP blocking mass freemail providers (yahoo.com, aol.com etc.). An email address change is the solution. 73 Martin OK1RR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] k2 off frequency
Hi all 4801 was getting a upgrade (ssb adapter) when I noticed that listening on my other rig (Icom 746 pro.) the k2 was off freq by 1kc high on 40 lsb this is on tx and rx. It is 600hz off high on cw. any ideas? George NE2I ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k2 off frequency
On 9 Apr 2005 at 13:58, George Cortez wrote: Hi all 4801 was getting a upgrade (ssb adapter) when I noticed that listening on my other rig (Icom 746 pro.) the k2 was off freq by 1kc high on 40 lsb this is on tx and rx. It is 600hz off high on cw. any ideas? How about flipping the coin ? Noticing that the Icom is off frequency compared to the K2 eh? Why do people always assume that commercial gear is the 'standard' against which other equipment should be measured/compared ? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2 feedline question
Hi Tom Yes, that is excellent feedline for multiband antennas. Here I have a 60 ft centerfed flattop with 450 ohm window line for feeder. I can load this antenna on 160, 80, 40, 30, 20, 17, 15, 12 and 10m. The feedpoint Z at the shack end changes from band to band, so I either use a 1:1 balun or a 4:1 balun, whichever gives me the best match on a given band. I put one balun on ANT1 port of the ATU, and the other balun on the ANT2 port. With banana plugs and jacks, it only takes a moment to switch from one port to the other. The ATU remembers the settings and ANT selection as you jump from band to band. Go for it! 73, Bob N6WG -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Friday, April 08, 2005 1:10 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K2 feedline question Hi all, Well spring is in the air and old man's fancy turns to antennas. I have a K2 (s/n 1103) without the 100 watt amp and with the internal low power ATU. Unless procrastination gets the best of me again, I'd like to string up a new wire antenna this spring. I have a chunk of 400 ohm ladder line, which I'd like to use as the feedline and would like to know how and if I can use this with the K2/ATU. Thanks Tom WB2QDG k2 1103 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] k2 off frequency
George, Before drawing any conclusions based on another piece of amateur gear, zero beat WWV at 10 MHz (for a rough approximation, tune until the announcment voice is correct) and see just how far off you are. The procedure (along with a lot of related information including how to 'zero-beat' WWFV very closely) to properly set the K2 dial calibration is on my website www.qsl.net/w3fpr. 600 Hz is WAY off - 20 0r 30 Hz might be expected after doing the calibration. A note on observations in CW mode - be certain of how the receiver used to observe the K2 transmitted frequency handles the CW offset. If it shows the actual carrier frequency while listening to a particular pitch, you must be certain the audio note is the same as that pitch (just like on the K2). 73, Don W3FPR -Original Message- Hi all 4801 was getting a upgrade (ssb adapter) when I noticed that listening on my other rig (Icom 746 pro.) the k2 was off freq by 1kc high on 40 lsb this is on tx and rx. It is 600hz off high on cw. any ideas? George NE2I ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Elecraft XV144 and XV50 - TX Noise and birdie
Hello! I have made some measurments, but not with XV series transverters but with Javornik 144/14MHz IF. I compared Ft1KMP and K2 driving the same transverter and observed the noise (not birdies) 20KHz away from the carier. The K2+TRV increased noise some 7 to 10dB more than FT1KMP+TRV at same power output (+43dBm).But K2 has less splatters as Ft1KMP. And about birdies (the milion of tiny ones)...most of them are generated on KSB2 SSB board interacting between PIC clock signal and SSB audio path,mostly in Q1. I have made some shielding and bring them down for some 10dB but this is not most brilliant solution. http://www.s55m.com/teh/images/ksb2.jpg I have tried to moove Q1 on the bottom side of PCB but no improovment. I also noticed the drifting condor but i have no idea where it comes from :( . You are lucky to use 28MHz IF ,so You are free of 14.361MHz beacon. For the general phase noise of K2 on TX i still wait for some solution either from designers or maybe from good friend of mine Robi-S53WW. 73's S55M-Adi P.S. Here are my measurment of K2 RX compared to FT1KMP and TS930S http://www.s55m.com/teh/K2930MP.jpg and http://www.s55m.com/teh/RXPN.gif - Original Message - From: Ken G3WCS [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Saturday, April 09, 2005 12:33 PM Subject: [Elecraft] Elecraft XV144 and XV50 - TX Noise and birdie Hello all, A few months back I put together the XV144 and XV50 transverters. Both work fine but following some comments from very local stations I decided to make one or two checks. I am comparing these tranverters with my own original 144Mhz transverter which I built about 15 years ago. With no input to either transverter but with the input terminated at 50 ohm and with a resonant antenna connected, listening on another receiver with an antenna connected reveals quite a high hiss or mixing noise when the PTT line is operated. This happens on both the 50 and 144 Mhz transverters. If I operate the PTT line of my old home brew transverter there is no such noise or if any it is very much reduced. I am sure the hiss (phase/mixer noise) is many db down on the normal output level but it is nevertheless much greater than my original home made unit. Secondly, and somewhat more worrying is a drifting birdie that both the XV50 and the XV144 produce. Once again I know these are many db down on the normal output but the 144 Mhz birdie is of sufficient strength that a station 15 miles away heard it whilst trying to work an EME QSO. It drifted across the frequency he was using. On my particular transverters these birdies occur at about 50.130 Mhz on the XV50 and about 144.140 Mhz. They seem to drift LF during TX and at a rate of about 10 Khz in 5 minutes. I wonder if anyone else has made any observations and come up with a cure. I all other aspects the transverters are excellent and totally stable. Indeed, the 144 Mhz version is fitted with a crystal oven. I know there was a thread on here a month or two back regarding phase noise being heard by stations within a 20 Km radius during high levels of 144 Mhz activity. Has anyone else got any more comments or observations to make. I know that my observations are not exactly 'scientific' but there are made by comparison with a different transverter which does not exhibit these problems. During all these tests the transverters have had their inputs and outputs correctly terminated with no 28 Mhz drive source connected. Sorry for the long waffle. Any comments most welcome. Best 73, Ken G3WCS. -- Ken G3WCS IO83rh : Cheshire : NW England (+44) (0)870 765 1632 (home) (+44) (0)7733 400 950 (mobile sms) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Resistor Color Code Guide
I'm slowly but surely gathering the tools and such so I'll have every thing necessary to build a K2. I remember in my earlier ham days that I had a little chart from RadioShack. You dialed up the colors in the correct order and it gave you the value of the resistor. It may come in handy during the build. I don't think RadioShack carries these any longer, per a quick phone call I just made. Are there any other sources for something like this? Rich Thorne ARS: N5ZC AMA: N5ZC Amarillo, TX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Resistor Color Code Guide
Rich: Here's a handy link: http://www.electronics123.com/amazon/tools/resistor/calculator.htm 73, Steve Kercel AA4AK At 06:03 PM 4/9/2005 -0500, you wrote: I'm slowly but surely gathering the tools and such so I'll have every thing necessary to build a K2. I remember in my earlier ham days that I had a little chart from RadioShack. You dialed up the colors in the correct order and it gave you the value of the resistor. It may come in handy during the build. I don't think RadioShack carries these any longer, per a quick phone call I just made. Are there any other sources for something like this? Rich Thorne ARS: N5ZC AMA: N5ZC Amarillo, TX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] AGC Alignment
At least a few of us saw exactly the same thing in the last few weeks. We never heard anyone giving grave warnings that we were in trouble...so I don't know what to tell you, except that I'm in exactly the same boat. I planned on measuring it again when I get to the next alignment/test where that board is powered up. For now I'm still winding toroids. -Paul KB8NMZ K2 #4818 On Apr 9, 2005, at 7:38 AM, Evert Bakker wrote: Hi all, I'm assembling the K2 here (SN 4836) and came to the first check/alignment. No smoke here so far, but when adjusting the setting for the AGC as described on page 47 I became suspicious about the alignment procedure. Adjust R1 for 3.80 V on the DMM. I turned R1 and reached the end and got stuck on 3.78V. The absolute value of 3.78 doesn't worry me but that I ended up at the limit of the R1. I thought I should check all variables like DC voltage which should be 8V (was 7.98V so OK). Checked the resistors (mainly RP6 / 5.1K) and, RF gain potentiometer 5K and the R1 (50K). All looked fine. So what's wrong? I started making calculation on the resistor dividing network and came to the conclusion that the maximum voltage (theoretically) could be close to 3.82V when the RF-gain is fully CW (0 Ohm) and the R1 is set fully CCW (50K). I wonder if something is wrong here and if not, why was the alignement procerdure setup like this (it could heve been something like: Set RF-Gain full CW, R1 full CCW and check the voltage at pin 5 of U2 to be close to3.80V)? Or did I miss some errata info? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] AGC Alignment
Evert, Same thing happened here last summer as I was building K2 #4090. I just let it go; I figured 3.78V was close enough. My K2's been on the air for 9 months now with no problems. I would't worry about it. 73 de Larry W2LJ K2 #4090 K1 #1647 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] (no subject)
Hello all, Trevor and myself will hike up to Pulpit Rock here in PA on the Appalachian Trail on Sunday. look for me on 40m and 20m cw. I will be trying out my Palm 105 for logging so be nice - hi! I hope to work a few from the rock here in PA. 72, Ed, WA3WSJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] (no subject)
Hello all, I bought a Palm 105 off Ebay and installed some nice loggers on it. One logger called K2 Logger even can control my K2! I didn't want to, but I did go and buy a K2I/O off Elecraft. I plan to take my K2 portable and leave my computer at home. The Palm should work out just fine with it in the field. 72, Ed, WA3WSJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Resistor Color Code Guide
Rich, My 8 year old grandson grasped the resistor/capacitor color code in about 15 minutes of sorting resistors. Buy one of those resistor 'grab-bags' and sort them - when you are finished, you should have a good recall of the color code. 73, Don W3FPR -Original Message- I'm slowly but surely gathering the tools and such so I'll have every thing necessary to build a K2. I remember in my earlier ham days that I had a little chart from RadioShack. You dialed up the colors in the correct order and it gave you the value of the resistor. It may come in handy during the build. I don't think RadioShack carries these any longer, per a quick phone call I just made. Are there any other sources for something like this? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Resistor Color Code Guide
Color code is easy! Remember the rhyme we learned in radio school: Bad Boys Rape Our Young Girls But Violet Gives Willingly! Gold is more valuable than Silver! First letters in each word gives clue to color. Do they still talk about ELI the ICE man? (To find about when voltage leads current and vice-versa.) 73, Sandy W5TVW - Original Message - From: Stephen W. Kercel [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, April 09, 2005 6:36 PM Subject: Re: [Elecraft] Resistor Color Code Guide | Rich: | | Here's a handy link: | | http://www.electronics123.com/amazon/tools/resistor/calculator.htm | | 73, | | Steve Kercel | AA4AK | | | At 06:03 PM 4/9/2005 -0500, you wrote: | I'm slowly but surely gathering the tools and such so I'll have every | thing necessary to build a K2. | | I remember in my earlier ham days that I had a little chart from | RadioShack. You dialed up the colors in the correct order and it gave you | the value of the resistor. It may come in handy during the build. | | I don't think RadioShack carries these any longer, per a quick phone call | I just made. Are there any other sources for something like this? | | | Rich Thorne | ARS: N5ZC | AMA: N5ZC | Amarillo, TX | | ___ | Elecraft mailing list | Post to: Elecraft@mailman.qth.net | You must be a subscriber to post to the list. | Subscriber Info (Addr. Change, sub, unsub etc.): | http://mailman.qth.net/mailman/listinfo/elecraft | | Help: http://mailman.qth.net/subscribers.htm | Elecraft web page: http://www.elecraft.com | | | ___ | Elecraft mailing list | Post to: Elecraft@mailman.qth.net | You must be a subscriber to post to the list. | Subscriber Info (Addr. Change, sub, unsub etc.): | http://mailman.qth.net/mailman/listinfo/elecraft | | Help: http://mailman.qth.net/subscribers.htm | Elecraft web page: http://www.elecraft.com | ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Resistor Color Code Guide
On Sat, 9 Apr 2005, Sandy wrote: Color code is easy! Remember the rhyme we learned in radio school: Bad Boys Rape Our Young Girls But Violet Gives Willingly! May not be Politically Correct! 73,Thom-k3hrn www.zerobeat.net Home of QRP Web Ring, Drakelist home page, Free Classified Ads for amateur radio, QRP IRC channel Elecraft Owners Database www.tlchost.net/ Web Hosting as low as 3.49/month ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Resistor Color Code Guide
Black Brown Red Orange Yellow Green Blue Violet Grey White Better Be Right Or Your Great Big Venture Goes West -de N7BNT Doug Thom R Lacosta wrote: On Sat, 9 Apr 2005, Sandy wrote: Color code is easy! Remember the rhyme we learned in radio school: Bad Boys Rape Our Young Girls But Violet Gives Willingly! May not be Politically Correct! craft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Resistor Color Code Guide
Rich, N5ZC wrote: ...in my earlier ham days that I had a little chart from RadioShack. You dialed up the colors in the correct order and it gave you the value of the resistor. It may come in handy during the build. I don't think RadioShack carries these any longer, per a quick phone call I just made. Are there any other sources for something like this? You'll find a complete color code chart and information for identifying other part values such as chokes and caps used in your Elecraft kit in the front part of your Elecraft manual, along with soldering tips and other important build data. Ron AC7AC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Resistor Color Code Guide
Thom R Lacosta wrote: On Sat, 9 Apr 2005, Sandy wrote: Color code is easy! Remember the rhyme we learned in radio school: Bad Boys Rape Our Young Girls But Violet Gives Willingly! May not be Politically Correct! Clearly not politically correct...but I still use it anyway :-) But bless Elecraft for printing part codes in the manual. -Maggie- -- -/___. _)Margaret Stephanie Leber CCP, SCJP/The art of progress / /(, /| /| http://voicenet.com/~maggie SCWCD/ is to preserve order/ ---/ / | / | _ _ _` _ AOPA 925383/ amid change and to / --/ ) / |/ |_(_(_(_/_(_/__(__(/_ K3XS / preserve change amid/ -/ (_/ '.-/ .-/ARRL 39280 /order.-A.N.Whitehead/ /(_/_(_/___AMSAT 32844_/[EMAIL PROTECTED]/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Resistor Color Code Guide
In a message dated 4/9/05 8:27:31 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: I don't think RadioShack carries these any longer, per a quick phone call I just made. Are there any other sources for something like this? I made one, decades ago, from shirt cardboard. Used little brother's crayons. Still have it someplace. 73 de Jim, N2EY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Resistor Color Code Guide
Not politically correct? Only the most boorish idiot that ever lived would even dream of sending it. Pardon my lack of political correctness. Bob N4HY -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Thom R Lacosta Sent: Sunday, April 10, 2005 12:23 AM To: Sandy Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Resistor Color Code Guide May not be Politically Correct! 73,Thom-k3hrn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Resistance Color Code
I too learned the color code but before radio school from my Uncle Vern (W9EPI). Bright BoysRave OverYoung Girls But Veto Getting Wed Black Brown Red Orange Yellow Green Blue Violet Gray White 0 1 23 4 5 6 7 8 9 First two bands are numbers, third is multiplier fourth is the resistors tolerance 5% Gold 10% Silver and no 4th band is 20% Floyd Hoskins N5FH ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Resistance Color Code
Check out this web page and print off a copy of the chart. I hope this helps! http://www.uoguelph.ca/~antoon/gadgets/resistors/resistor.htm 73 Aaron KC7RSO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Resistor Color Code Guide
Well, we went through ways the military taught code practice. Here's how the military taught me to remember the color code including tolerance: Bad Boys Rape OurYoung Girls But Violet Gives Willingly for Gold Silver or Nothing Black Brown Red Orange Yellow Green Blue Violet Gray White 5% 10% 20% I've remembered it for 43 years. And that's the clean one. Eric KE6US -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of W3FPR - Don Wilhelm Sent: Saturday, April 09, 2005 5:11 PM To: Richard Thorne; elecraft Subject: RE: [Elecraft] Resistor Color Code Guide Rich, My 8 year old grandson grasped the resistor/capacitor color code in about 15 minutes of sorting resistors. Buy one of those resistor 'grab-bags' and sort them - when you are finished, you should have a good recall of the color code. 73, Don W3FPR -Original Message- I'm slowly but surely gathering the tools and such so I'll have every thing necessary to build a K2. I remember in my earlier ham days that I had a little chart from RadioShack. You dialed up the colors in the correct order and it gave you the value of the resistor. It may come in handy during the build. I don't think RadioShack carries these any longer, per a quick phone call I just made. Are there any other sources for something like this? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Resistor Color Code Guide
On Apr 9, 2005 8:26 PM, Doug Forman [EMAIL PROTECTED] wrote: Black Brown Red Orange Yellow Green Blue Violet Grey White Better Be Right Or Your Great Big Venture Goes West That's the one I learned, and I'm pretty sure I got it from the BSA Electronics merit badge handbook. de John/W1RT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Fwd: [Elecraft] Resistor Color Code Guide
Ci Jones WU7R ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Resistors
In a message dated 4/10/05 01:27:34 GMT Daylight Time, [EMAIL PROTECTED] writes: You dialed up the colors in the correct order and it gave you the value of the resistor. It may come in handy during the build. I have always just used my DMM to check the value of each resister before installing it. I am partially color blind (hence couldn't fly in the Marine Corps), so I have to depend on an alternative that works really well so far. Ci Jones WU7R ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 Keyer Problem
I have K2 #4650, which has worked flawlessly for about three months. I have had several hundred QSOs, mainly CW, and have used all bands. I almost always run 5 watts. Today, a weird phenomenon raised its head. On 17M, I finished a QSO with an Italian station, and everything was working great. I started to call another station, and the keyer started sending a pattern of dot-dash-dot-dash-dot-dash... when I held down the dash paddle. The dot paddle works OK. The phenomenon stops when I reduce power below 2 watts or so. SWR is about 1.2 - 1.3. I experimented for awhile, and found that I only had the problem on 17M, nothing on 80, 40, 20, 15, or 10. Then I had a QSO with everything normal on 20M, then returned to exploring the problem. I now find the dot-dash problem has creeped in on 15M. Still no problem except on 17M and 15M. I scrolled thru FAQs, but haven't found anything. I strongly suspect a software problem, but am not sure how to proceed, and will appreciate the wisdom of the gurus on this reflector. Thanks in advance, Russ Eberhart, N9IV K2 #4650 KX1 #742 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Resistors
Huh??? I didn't say that! The assembly instructions will teach anyone who has built an Elecraft rig the color code. The correct colors are in each step right after the value for the resistor, e.g. 4.7k (yel-vio-red). By the time you're done building, you know the color code! A DMM doesn't hurt. Sometimes the colored resistors are hard to read correctly, and some of the bands are so tiny on the smaller units that the color is simply hard to see! Ron AC7AC -Original Message- In a message dated 4/10/05 01:27:34 GMT Daylight Time, [EMAIL PROTECTED] writes: You dialed up the colors in the correct order and it gave you the value of the resistor. It may come in handy during the build. I have always just used my DMM to check the value of each resister before installing it. I am partially color blind (hence couldn't fly in the Marine Corps), so I have to depend on an alternative that works really well so far. Ci Jones WU7R ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Elecraft CW Net Announcement
The phone company finally fixed our telephone lines. Sometime yesterday the power company blasted the power in the area snapping breakers in many houses. Somehow or another they zapped the phone service to quite a large area too. Thus we have been without phone, power, and Internet service for a day. Amazing how the little things effect one. Some technologies seem to work pretty well :) The K2, battery, and candles. If anyone still has a hankering to get on the air after all the contests this weekend you are welcome to call us. Please join us : Sunday 2300z (Sunday 4pm PDT) 14050 kHz Monday 0200z (Sunday 7pm PDT) 7045 kHz Visit our web site: http://ecn.visionseer.com/ for net details. I have had one of the most exhausting, nerve wracking, and strenuous weeks of my life. Hopefully next week will allow for some rest and stress relief. Like digging in the garden!! Take care and see you tomorrow, Kevin. KD5ONS (Net Control Operator 7th Class) -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: 4/7/2005 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K2 Keyer Problem
Russ, You might try replacing the antenna with a dummy load to eliminate RF as the source. John K7VV On Apr 9, 2005 7:10 PM, Eberhart, Russell [EMAIL PROTECTED] wrote: I have K2 #4650, which has worked flawlessly for about three months. I have had several hundred QSOs, mainly CW, and have used all bands. I almost always run 5 watts. Today, a weird phenomenon raised its head. On 17M, I finished a QSO with an Italian station, and everything was working great. I started to call another station, and the keyer started sending a pattern of dot-dash-dot-dash-dot-dash... when I held down the dash paddle. The dot paddle works OK. The phenomenon stops when I reduce power below 2 watts or so. SWR is about 1.2 - 1.3. I experimented for awhile, and found that I only had the problem on 17M, nothing on 80, 40, 20, 15, or 10. Then I had a QSO with everything normal on 20M, then returned to exploring the problem. I now find the dot-dash problem has creeped in on 15M. Still no problem except on 17M and 15M. I scrolled thru FAQs, but haven't found anything. I strongly suspect a software problem, but am not sure how to proceed, and will appreciate the wisdom of the gurus on this reflector. Thanks in advance, Russ Eberhart, N9IV K2 #4650 KX1 #742 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- John [K7SVV] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] help!
Merlin, Yes, I would suspect a faulty solder connection before anything else. Since it is confined to 40 meters and happens with a dummy load, I would look in the 40 meter low pass filter area first - especially for poorly tinned toroid leads. 73, Don W3FPR -Original Message- If it ain't one thing, it's another. Having just fixed the AGC problem in my K2 (2631), enjoying the beautiful radio, weirdness has again struck. I get high SWR on 40 meters after I cut the output down, to raise it again for full output. When I back the power off to minimum, there's the high reflected power indication, about 9 to one. When I run the power back up, the SWR again behaves. Souns like antenna glitches, no? The antenna is a big loop (240 feet) open at the top, fed with 450 ohm open wire line. I use an SGC 230, and the combination with my K2-100 has been perfect. When I back off the power, only on forty meters, the SWR goes crazy. Only on forty. All other bands tune thru the tuner just fine. So, thinking still it must be the antenna, I ran the K2 into a dummy load. Same Thing Happens ! Is there a bad solder joint in the low pass filter on the K2?; that lets it operate at some power levels but shows high levels of spurious transmitted signal sometimes? I don't get it. Any ideas? Merlin, W3ICT, [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K2 LCD (Protective Film On Backside)
Remove nothing until just before putting the front panel on the PC board - then carefully remove the thin plastic film that protects the LCD. Scrape up a corner with a fingernail - or if you must use a sharp instrument, take care not to damage the harder plastic (glasslike) surface under the thin plastic film. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of randt Sent: Saturday, April 09, 2005 11:15 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K2 LCD (Protective Film On Backside) #4877 k2 in progress. My LCD has a light grey looking tape or film on the Back with no lines or yellowing. Page 27 in manual says(some LCDs (not all)may also have such film,with faintly visible yellow or gray diagonal lines. Do I leave this on or take it off? It is grey/white looking but no lines. Please help me in my wondering. Dont want to mess up now! Kinda believe this is part of LCD. kc4eyf Thanks ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] help!
OK, I will now take back the content of my last post. Re-reading more carefully, since an autotuner is involved, a certain minimum power is reqired to begin tuning - and if the power is set too low, 'strange things will happen'. Set the power for 2 watts or greater - it should tune with no problem. After tuning the antenna, you can drop the power back if you wish to run QRPp. OTOH, since you indicate that the same thing happens with a dummy load (hopefully with no tuner involved), you should still look at the KPA100 low pass filter - and possibly the LPF in the base K2. 73, Don W3FPR -Original Message- Yes help, If it ain't one thing, it's another. Having just fixed the AGC problem in my K2 (2631), enjoying the beautiful radio, weirdness has again struck. I get high SWR on 40 meters after I cut the output down, to raise it again for full output. When I back the power off to minimum, there's the high reflected power indication, about 9 to one. When I run the power back up, the SWR again behaves. Souns like antenna glitches, no? The antenna is a big loop (240 feet) open at the top, fed with 450 ohm open wire line. I use an SGC 230, and the combination with my K2-100 has been perfect. When I back off the power, only on forty meters, the SWR goes crazy. Only on forty. All other bands tune thru the tuner just fine. So, thinking still it must be the antenna, I ran the K2 into a dummy load. Same Thing Happens ! Is there a bad solder joint in the low pass filter on the K2?; that lets it operate at some power levels but shows high levels of spurious transmitted signal sometimes? I don't get it. Any ideas? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
