[Elecraft] toroid enamel wire question

I had the same problem winding the small cores on the SSB board. I was careful but still saw some of the enamel come off the wire and decided to leave it as is. This should not be a problem unless two adjacent turns are scraped and touch to cause a shorted turn. Also be careful of the small core

[Elecraft] K2/KPA100 vs. EC2/KPA100

Hi Greg, Congratulations on building K2 S/N 6100. I built the EC2/KPA100/KAT100. The rig operates the same as if the KPA100 was installed in the K2. It is a great feature to be able to quickly disconnect the K2 from the EC2/KPA100/KAT100 to take just the K2 to the field for outside QRP operati

[Elecraft] FS new K2 firmware kit

Surplus to my needs: I have a new FWK2MCUIO firmware kit with versions 2.04P (Main), 1.09 (IOC) for sale Contact [EMAIL PROTECTED] Bob Johansen WB2SRF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to th

[Elecraft] alc trouble

I think that it is normal for no ALC indication on the 10M band. If the set power is above what the transmitter is capable of, there will be no ALC action to reduce the output power. On my K2 measured about 10W output on 10M @13.8V. With the KAT2 installed measured about 8W delivered to 50 Ohm

Re: [Elecraft] What's a panadapter?

Hi Paul, You have a very good point. Band Scope by definition makes a lot more sense to relate to its purpose. 73, Bob Johansen WB2SRF On Thu, 3 May 2007 11:46:27 -0400 (EDT) Doug Faunt N6TQS +1-510-655-8604 <[EMAIL PROTECTED]> writes: > IIRC, Panadapter is (or was) a trademarked name. Certain

[Elecraft] What's a panadapter?

Hi Peter, A Panadaptor gets its name from an abbreviation of Panoramic receiver display adaptor. Its purpose is to allow the radio operator to see what signals are within the band of frequencies that he is operating. For example instead of manually tuning or scanning the receiver to find a stat

[Elecraft] panadaptor

I read about the possibility of a new Clifton Laboratories design "Son of the Z90" Panadaptor dedicated to the K2. I think that this a good idea that will prove to be successful. I am interested in a unit with a built in display. The $75 machined K2 enclosure option seems reasonable. 73, Bob

[Elecraft] Fw: Re: Instability

- Forwarded message -- From: Robert Johansen <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Date: Wed, 3 Jan 2007 19:28:12 -0500 Subject: Re: Instability MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Full-Name: Robert Johansen Hi

[Elecraft] 7180 KHz VCO stability problem

I noticed that I have the 7180-7182 KHz VCO stability problem. Discovered that when I began loosening the screws on the bottom cover, the buzzing sound disppeared. Experimented with this for a while and found that if I remove the screw that holds the cover on the right side of the chassis viewed w

Re: [Elecraft] solder

Johansen WB2SRF On Fri, 22 Dec 2006 03:52:48 -0600 Tom Hammond <[EMAIL PROTECTED]> writes: > Robert Johansen wrote: > > I found an interesting article on the internet regarding Lead free > solder: > > http://www.jgpp.com/projects/lead_free_soldering/03_27_02_presentati

[Elecraft] solder

I found an interesting article on the internet regarding Lead free solder: http://www.jgpp.com/projects/lead_free_soldering/03_27_02_presentations/b mamsg.pdf Now I understand the reason why its use should be avoided for electronic kit assembly. I have been using Kester 44 Tin lead solder for

[Elecraft] Solder

Hi Rob, No I do not think that this solder is recommended, you may void the warranty if you need to send the unit in to Elecraft for repair. I built my K2 and other elctronic projects using the Kester 63/37 Tin lead based solder that is recommended by Elecraft Please refer to Elecraft webpage r

Re: [Elecraft] KPA100 rev D

3UNA > > ----- Original Message - > From: "Robert Johansen" <[EMAIL PROTECTED]> > To: > Sent: Saturday, November 11, 2006 4:42 PM > Subject: [Elecraft] KPA100 rev D > > > > Hi Wayne, > > > > There a reason for concern for eliminatin

[Elecraft] KPA100 rev D

Hi Wayne, There a reason for concern for eliminating the choke in the antenna circuit. I noticed that there is no DC path to ground to eliminate the chance of static potenital build up on an antenna from discharging a high voltage into the rig. This may be the reason why some builders have experi

[Elecraft] 2nd Generation Un-Module PCB Kits

I just received the Rework Eliminator Un-module kit and it went together smoothly, very good instructions. It should come in handy if I need to troubleshoot my K2 S/N 5622 73, Bob Johansen WB2SRF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.n

[Elecraft] KDSP2 Problem resolved

Last night I looked over the malfunctioning DSPx board and I believe that I found the problem causing the SSB low pass bandwidth problem that I had noticed with the board. There was a solder whisker causing a short between pins 77 (D17) and 78 (D18) I removed the solder using a pick and have trie

[Elecraft] Kdsp2 problem

Hi Don, The problem that I am experiencing is that when I completed the DSP board last night, I noticed that the default setting of the SSB DSP filter 1 (low pass filter) did not sound like its high frequency audio bandwidth was wide enough. The filter setting 2 default setting of 2.5 KHz had a h

[Elecraft] KDSP2

I just built the KDSP2 and found that the SSB Low Pass filter setting on filter 1 does not work as expected. The noise bandwidth is reduced instead of being wide. I have set the high frequency cutoff to 2.5 KHz for now. Any settings above 2.5 KHz also do not appear to function properly. Is there

[Elecraft] K2 serial #05622 completed

Just completed building my K2 Serial #05622 with NB and SSB options installed it went together smoothly, the problems was some distortion caused by the built in speaker. Bending the frame slightly solved the problem for now. Just received a replacement speaker thanks to Elecraft customer service an