[Elecraft] Elecraft CW Net Announcement

Good Evening Folks, Just got home from a very long wedding and I feel beat. Hopefully the bands will be quiet tomorrow. I worked a few folks over in Europe earlier today. Odd thing is they wanted my grid square. You'd think I was in the middle of a VHF/UHF contest; but no, I was on 20 mete

[Elecraft] Gary's Top Ten List of Kit failures

Needs to be added to all kits or sent to all new kit builders. I converted the HTML to a text file. About 14K. from http://www.elecraft.com/Apps/gary's_top_10.htm Ken N4SO Mobile, AL K2 #3394 The best thing to hit the Internet

Re: [Elecraft] K2 Birdies

G'day, #1400 revision "A" matches this +/- calibration: | 4000 Yes at S1 | 7000 Yes at S0 | 10170Yes on CW at 10172.4 at S0 | LSB at 10172.5 at S0 | USB clear USB at 10167.3 at S0 | 14171Yes on 14172 CW/

[Elecraft] K2 Options for Sale

Since I had upgraded to the K2/100 with DSp etc etc I have the following Options for sale; K2 Top Cover KAT2 20W Int Auto Tuner KIO2 RS-232 Interface ( don't think I have the cable). KBT2 Internal Battery Option with Battery ( I have not used the Battery in some time). KAF2 Audio Filter w Real

[Elecraft] K2/100 For Sale

Hi I am selling my K2 (Sn 301) with the following; K2 HF Transceiver KPA100 100W Option KSB2 SSB Option K160RX 160m Option KDSP2 DSP Option KAT100 100W Ext. Auto Tuner Kenwood Hand Mic Everything appears to work as specified. The radio was sent back for some help on the KPA100 back in Aug 20

Re: [Elecraft] Broke T50-10 toroid !!

Have used 2 part epoxy glue in the past to successfully glue broken ferrite cores back together such as the type used in TV line O/P transformers. The secret seemed to be to have a minimum gap as possible remaining between the parts, so a small amount of glue was essential. Superglue was not

[Elecraft] RE: Low Audio

I have noted discussions on the reflector in the past about some persons not being satisfied with the level of audio available form some of the kit radios. I built a completely passive sound card interface for my K2/computer connection. The sound card interface plugs into the ext speaker ja

Re: [Elecraft] Broke T50-10 toroid !!

Hi I don't know it it will work or not but I have heard of superglueing them back together and they work fine. Worth a try until you get a replacement Don Brown KD5NDB - Original Message - From: Rich McCabe To: Elecraft Reflector

Re: [Elecraft] Control board resistance checks on K2, help a newbie please!

Hi There is a lot of variation in the way DVM manufacturers measure ohms. The voltmeter in some of the meters will flash for an over range others will display OL for overload. Some will blank the display with only the left most digit displaying a one. Don't be concerned about the term overload

RE:[Elecraft] Control board resistance checks on K2, help a newbie please

Jason wrote: For Q1 collector, Q2 collector, U6 pin 13, U6 pin 14, U8 pin 15 and U8 pin 16, I get a reading of "0L" on my BK Tool Kit model 2704B DMM. This is the value that's normally displayed when you turn the knob to measure resistance and have an open circuit (i.e. the test leads aren't conne

[Elecraft] Broke T50-10 toroid !!

Guess I was pulling too hard winding toroids and broke one of the low pass T-50s. I was planning on finishing the 100 watt unit tomorrow and will go ahead and finish assembly and as much alignment as I can. Any comments on putting this thing online until the new part comes? Seems logical the way

[Elecraft] Control board resistance checks on K2, help a newbie please!

Hi everyone, I'm trying to do the resistance checks at the end of the control board part. A lot of the values seem right, but I'm not sure about some of them. Due to inexperience in kit building and using a DMM, I may just be reading things wrong (I have built a couple of small kits). For

RE: [Elecraft] Thin Audio

Whups... Sorry but I meant to point out in my prior message that there's a mod to fix the pre S/N 3000 K2's 2nd XFIL slope on the Elecraft web site as well as mods for the other things. All of the audio quality issues that have been uncovered over the past several years since the K2 was developed h

RE: [Elecraft] Thin Audio

Fred, you didn't provide any serial numbers. Things have changed a lot over the years and some ops are picking up older K2's. If yours is not a very recent one, that may be the underlying reason. If you have a pre S/N 3000 K2, some of the problem is caused by slope in the 2nd XFIL. That's the cry

Re: [Elecraft] K2 VCO alignment

Paul, 8 volts on R30 usually means the VCO is not oscillating. Try your counter probe on TP1 to see if there is any frequency indicated - if so, check that the frequency is correct for the band you are on (likely 40 meters at this stage of construction) - the low band edge frequencies are lis

Re: [Elecraft] K2 VCO alignment

Hi This usually means the VCO is not oscillating or is way off frequency. First check with the counter probe that the 12 MHz reference oscillator is working at TP3. Then check the +5 volts on pin 16 of U4 and the 8 volt supply is ok on the input of U8. If all of that is ok then check T5 after y

[Elecraft] K2 VCO alignment

I am on page 61 of the K2 manual on VCO alignment. All previous tests have been OK. In connecting a DMM to ground and R30 I get a reading of 8 volts, which is unacceptable. I have rewound T5, replaced C72 with a new cap and replaced L30. I have also verified that the 6 varactor diodes are of proper

[Elecraft] K2 and KPA100 Observations

Has anyone experienced the ALC not kicking in when using the MH-2 mike on PTT. I have found If I put the display in ALC while using PTT, the ALC kicks in after about one word. ALC seems to kick in on VOX after a few words automatically without any coaxing or proding. Before ALC takes hold I

[Elecraft] K2 for DX

As many have done, I take my K2 (QRP version) with me when I travel for work and look for DX in the evening. On Aug 25, I worked France, Croatia and Spain using the K2 from the 3rd floor of a Motel in Norfolk, Va using a PAC-12 vertical poked outside the window horizontally. I get good signa

Re: [Elecraft] Re: Elecraft Digest, Vol 4, Issue 28

I have one of those pairs of tweezers that you squeeze to open, and release to close. I use those to hold the toroid - they're a lot gentler than pliers would be. As for the solder - I leave the roll on the desktop with a length of solder unrolled and bent upwards so I can touch the wire and iron t

Re: [Elecraft] KAT100 relay problem !!!

I know what I did U2 wrong side. works to late Le 04-08-28, à 13:00, JEAN-FRANCOIS MENARD a écrit : Hi, I have completed the KAT100... Evething seems to work fine: I can change between ANT1 and ANT2 for each band, the LOW and HIGH power led is correctly controlled by the

[Elecraft] Thin Audio

I have been battling a problem with my sideband adapter for the K2. The receive audio on both sidebands (upper is much worse than lower) sounds very thin. When a station is not tuned, the received static has a tiny "shrill" quality. I used spectrogram to align the filters and the curves produce

[Elecraft] KAT100 relay problem !!!

Hi, I have completed the KAT100... Evething seems to work fine: I can change between ANT1 and ANT2 for each band, the LOW and HIGH power led is correctly controlled by the K2 also... But when I want to test each relay, I heard nothing at all !!! I found that when I did the resistance checks

Re: [Elecraft] N1MM

Hi Bob & all - I've been using N1MM Logger with my K2 for a long time with good results. Particulars are: a P1 233 mhz 80 meg ram Win 98 SE old IBM laptop with a "real" RS232 port and using N1MM Logger V 3.221. I have not used the LPT port for keying but run control and keying from the single se

Re: [Elecraft] Re: Elecraft Digest, Vol 4, Issue 28

Jerry: There is one thing I would add for stripping the toroids with the Hakko 808...Holding the toroid in your fingers WILL burn your finger tips, the copper wire conducts the heat almost immediately...Holding the toroid with pliers might damage the enamel...Place the toroid on the workbench a

Re: [Elecraft] Hakko wire striping was Hakko 808 wanted

Hi I think I was the first to post this method several years ago. I have a Hakko 706 that I used for many years. This model is no longer made by Hakko. It is a separate gun and station with the pump in the base unit. Someone posted a method to strip the leads using a Weller soldering gun with

Re: [Elecraft] Hakko 808 wanted

I want to second the importance of using enough heat. Initially, I tried to remove the enamel at my soldering temp of 750 and it did work, but took forever and was fairly frustrating. After deciding to move my temp up to 800 for this process, it was literally 5x faster and easier. David N2RDT --

Re: [Elecraft] K2 Birdies

Had a quick check with my K2 serial No.4168 for birdies: All 80m frequencies quoted below 4000 nothing on any mode. I did have moving interference with a poor tone on 3857 of S1 drifting HF + a broadcast station on 3891 of S0. Appear to be external pickup despite having a BNC 1/2W term on

[Elecraft] KIO2 - no response while in TX-mode...

Hi KIO2 programmers I want to read the K2 display while in TUNE mode, using the DS; command, to plot a SWR curve of my antenna, but I get no response during the TX time. What do I miss? Thanks for any info and help. Gerald - HB9CEY [EMAIL PROTECTED] _

[Elecraft] Re: Elecraft Digest, Vol 4, Issue 28

There is one thing I would add for stripping the toroids with the Hakko 808...Holding the toroid in your fingers WILL burn your finger tips, the copper wire conducts the heat almost immediately...Holding the toroid with pliers might damage the enamel...Place the toroid on the workbench and place a

[Elecraft] WA3WSJ on AT Today!

Hello all, I running behind schedule so look for me operating on the AT starting around 1550utc or so today. 72, Edward R. Breneiser, WA3WSJ mailto:[EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscrib

[Elecraft] K2 Birdies

Hi K2ers, Has anyone got any comments to make about internally generated birdies in the K2? I have only just had a look at what my K2 produces because during a QSO with a JA on 40m Long Path a few mornings ago, who was playing chicken at 7. plus gnat's eyebrow, I was getting constant QRM - u

RE: [Elecraft] Hakko 808 wanted

If you are trying the "solder blob" method and finding that it takes an inordinate amount of time to work, try two things: First, be sure you are heating some copper and not just enamel. At the very least, make sure the cut end of the wire is in the blob so the end of the copper is being heated.