[Elecraft] OT: wellbrook active antenna question

I have an off topic question. I recently acquired a used Wellbrook loop, with missing power injector. I'm wondering if all I need do is build a 12vdc injector and apply to the coax feeding the loop? Please feel free to email direct bw...@fastmail.net Thanks N1BBR -- bw...@fastmail.net

[Elecraft] OT: PC dependence - log book

This is an off topic question Does anyone know of a good solution for electronic device having synchronized copy of current log? Perhaps for mobile CW operation? TNX! N1BBR :-] -- bw...@fastmail.net __ Elecraft mailing list Home:

[Elecraft] Audio Ground Loop Isolation XFRMR?

I have a switch-box at my station which allows me to switch back and forth between the K3 audio and PC audio. This allows me to have SDR running on the PC and I can also listen to the K3 in one ear and the PC in the other. Any way, I've been experiencing ground-loop noise from my PC. I've tried

[Elecraft] Trying wspr again with signalink and K3

Hi All, I have a signalink with USB to the k3. And I'd like to see if I can get it working with WSPR. Currently, I'm receiving data from the K3, via the Signalink into the software nicely. But not able to get WSPR to trigger the K3 PTT. Is anyone using the Signalink USB with WSPR, and perhaps

Re: [Elecraft] Icoms answer to the KX3??

Not enough buttons on it for my CW-OP style. :-] I hate drilling into a menu just to change cw speed. Right now I'm in love with my new K3s!! Love that CWT display for zeroing in on a station! For a CW op, it doesn't get much sweeter. It will take me a little while to take full advantage of all of

[Elecraft] Setting up K3s on Reverse Beacon

Are there easy step by step instructions on how to setup the K3s for running on Reverse Beacon? This will be my first introduction into digi modes. Thanks in advance, N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home:

[Elecraft] OT: Your suggetions on logging software

Hi All, I've been using nGenLog for years now and really like it a bunch. The thing I like about it the most is that I can pare down the fields to minimal. I just have the new QSO entry module, the map display module, and the table displaying past QSOs Many of the logging softwares I've seen

[Elecraft] Elecraft Hex Key Serial # 57

I agree with the others on the moving paddle syndrome. :-] Over the years, I've had a number of units with a 3 or 4 lbs base. On the light extreme, I had a Schurr warbler that would slide off the bench if you breathed on it! The heavy ones are less prone to move around, but sometimes it happens.

Re: [Elecraft] CliftonLabs Z10000

You might try: ord...@cliftonlaboratories.com Its possible that Jack may have been overloaded with inquiries about products. But might respond when there is an actual action to purchase. -- bw...@fastmail.net __ Elecraft mailing list

Re: [Elecraft] K3S Radio check? (signal generator)

I used a simple 4-pin clock-oscillator running at 7.32mhz. Runs on 5VDC. Put it in a project box with LM7805 and a 12 inch wire as antenna. Can't use that as a signal generator for circuit tracing though without seriously limiting its output. But it makes for a simple little qrp xmitter. With

Re: [Elecraft] K3S Radio check?

Jerry, I had a 2 foot long alligator clip lead on the antenna input of my K3s today and was hearing cw signals all over 40 meters. K3s is a pretty hot receiver. You might try to connect up a wire 5-10 feet long to the ANT 1 input. Put the rig in TEST mode and see what you hear. Fingers crossed

[Elecraft] Cw Skimmer

Is anyone using CW Skimmer with the K3? I'd like to get your thoughts. Tnx N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

[Elecraft] Quick K3 question

Hi All, Got the K3s/10 assembled and trying to get used to it. One quick and easy question I'm sure you will know, that I haven't found myself. How do I disable the beeps when buttons are pushed? Thanks N1BBR -- bw...@fastmail.net __

Re: [Elecraft] OT USB Scope Question

Hi Jim, For a number of years I used a Fluke 97B 50 mhz scope. Picked it up for $50 bucks on Ebay and used it for a number of years then sold it for $50 bucks. :-] There are some youtube reviews of PC type scopes you might check out. Best! N1BBR -- bw...@fastmail.net

[Elecraft] K3S Proper Grounding

I'm wondering if the RFI is primarily due to the condition of the coax? If a tuner is located at the rig-side of the coax, and the coax is at high SWR, it could possibly be a cause for coax radiation. A test might confirm that. Perhaps you could find a spot on 40m where the SWR is null, and no

[Elecraft] What crystal filter do you use the most?

Hello gang, Just ordered my first K3. I haven't ordered any filters or accessories yet. Want to wait and see what I really will need. I'd like to illicit your experience with the use of crystal filters for CW. What filter do you find you use the most and why? I won't be using the K3 for

[Elecraft] Does the K3S/10 have the fans in the case?

Hi all, I'm seeing pictures of the K3s/10 with the dual fans in the back of the case. I suspect that picture is probably from the 100 watt version? Is that correct? I would be surprised if the 10 watt version needed cooling fans. Tnx N1BBR -- bw...@fastmail.net

Re: [Elecraft] Does the K3S/10 have the fans in the case?

W3FPR > > On 9/17/2015 10:57 AM, dw wrote: > > Hi all, > > I'm seeing pictures of the K3s/10 with the dual fans in the back of the > > case. > > I suspect that picture is probably from the 100 watt version? > > Is that correct? > > I would be surprised if th

[Elecraft] Had the opportunity to get my hands on a KX3!! ** Got the bug **

Well I discovered a friend a few miles from me has a Kx3 and was willing to let me come over and check it out. Now I got the KX3 bug!! Concerted efforts now are in place to squirrel away the funds to buy one. ;-D N1BBR -- bw...@fastmail.net

Re: [Elecraft] Power supply

I don't have a Kx3 so I can't answer to whether this will work for that unit. But I do get (Elpac Power Systems FW5012 Adapter 12V) for other 12V radios. Its a linear regulated supply. No observable noise on receivers I power with it. Rated at 1.45 Amps Coaxial barrel connector, positive on

Re: [Elecraft] [Antenna launcher]

I use an Arborist sling-shot. I've had it for almost 10 years. Have 60-70 foot oak trees on the property. Use a tennis ball full of old metal washers. Punched 2 holes in the ball and made a wire loop. Have a cheap deep-sea fishing reel on a platform that sits on the ground. The ball flies right

[Elecraft] OT: Anyone use MFJ Noise Canceler for PC noise?

Off topic quick question. Hi Gang. For a quick question Does anyone know of someone who is using the MFJ noise canceler to deal with local computer noise? I'm wondering if it would be a realistic expectation? Or perhaps you have other ways you have reduced PC noise in the shack? I'm finding

[Elecraft] Question about using external DPS audio filter with K2

Hi All, I have an opportunity to pickup a Timewave 599 audio filter to use with my K2. From what I understand, audio filters like the Timewave units are really good at reducing cyclical noises, but not simply to reduce general noise-floor levels. I'm wondering if it would be a waste of money for

Re: [Elecraft] FTDX5000 Design Flaw

Super impressed Wonderful piece of work Jim!!! -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This

Re: [Elecraft] K3 and hex-beam antenna

I agree totally. Although I am still enjoying the K2 with an external amp. I have a doublet up 55' which easily serves South-AM, Africa and typically as far east as Kazakhstan. But a hex up on a 30' mini-tower reaches out the rest of the way. Wonderful small-footprint combinationElecraft and

[Elecraft] KX3 seems pretty issue free :-]

I think Eric and Wayne are pretty much genius's when it comes to designing radios. So thrilled for what they've done with Elecraft!! I've been watching the list since the KX3's went to production, and I see very few if any user troubles posted. Good times for ham radio!! N1BBR :-] --

[Elecraft] Elecraft AF1 audio filter

Hi Johnny, You may try seeing what a choke coil in series with the audio to the speaker or headphone does for you. I have the Nescaf filter and really like it for CW. In most cases, its cleaner than the available internal audio filters. But I found that adding a 3mH coil and 15uF cap in series

[Elecraft] Would like to experiment with hyperterminal to the k2

I have the proper OEM serial cable for my K2. I would like to experiment with sending frequency commands to the K2 using Windows Hyperterminal. I'm sure that by now there are perhaps tons of user notes on the steps one takes to do this. Does anyone have any notes they can point me too? Thanks!!

[Elecraft] Where will Elecraft be showing near New England?

Hi All, Does anyone know where and when the next Ham convention will be in the New England area? And are they typically setup to allow people to check out products prior to purchase? Thanks! :-] N1BBR -- bw...@fastmail.net __

Re: [Elecraft] Changing CW pitch on K2

I few years ago, I built a tiny transmitter box using a simple Canned Crystal Oscillator that runs at 7.385mhz. Pop a 9 volt battery on it and lay the wire lead near the K2 when I’m re-adjusting the filters. I know it’s not the conventional method, and I’ve tried the others. But it’s quick and

Re: [Elecraft] auto-tuner needs more radio output to tune

I had the SGC 100 watt unit for many years feeding a classic 130' doublet. Upgraded to the 500 watt model 3 years ago. Both of them take around 6 seconds to find sweet spot with this antenna with 15 watts applied from the K2/qrp. 160m to 10m

Re: [Elecraft] OT: Begali key

That is a beautiful keyer!!! You'll sell that baby in no time. I have the Graciella Jr and really like it. Its almost quite mechanically. But the quietest and smoothest keyer I have is a touch paddle on a 3 pound steel block. :~D No mechanical noise, no problem with dust getting into moving

[Elecraft] OT: How to *NOT* get scammed.....emails offering to sell Elecraft equipment?

I hope its ok for me to post an OFF-TOPIC query. Here is my question: Recently I was forwarded an email.a ham offering to sell a slightly used KX3. I had a bad experience this summer with someone who I believe was posing as a ham offering to sell something via email. It was in response to a

Re: [Elecraft] K3 Splitter for Loop RX Antenna ?

Thanks for posting this Pete! Are you noticing any observable decrease in signal strength with vs without the hybrid splitter? If I understand correctly a power splitter with 2 outputs will give 3db insertion loss. An RF amp may be added to make up the loss. I'm wondering how you would describe

[Elecraft] What items come standard with the KX3 factory assembled?

What items come as part of the KX3 factory assembled unit? I’m guessing it comes with an operator’s manual? Are there any cables that come with it? Thanks in advance! :-] N1BBR __ Elecraft mailing list Home:

[Elecraft] Wondering if anyone is using cw Skimmer with K2?

Hi All, I seem to remember at least one person in the group had tapped into his K2 IF for cw skimmer. I suspect I can also simply patch the audio output from the K2 into the PC sound-card. But I'm not familiar enough with cw skimmer to know if it has a scan mode, where it can control the K2 to

[Elecraft] Upgrade from k2 to KX3 for week station hunting?

Hi All, For those of you who are familiar with the K2, K3 and KX3, I'm interested in your experiences with comparing those receivers ability to pull week cw signals out of the mud for long-distance qso-ing. Specifically have you found features in the K3 and/or KX3 that out-perform the K2 for that

Re: [Elecraft] K3 - using ear buds

I'm a cw only op also. Over the years I've had custom made inner ear plugs, a Meyer Aviation Headset, Extreme Isolation headphones, Yamaha headphones, ear-buds of all kinds, ...etc...etc Every over-the-ears headset I've ever tried ended up hurting my ears. I ended up staying with el-cheepo

Re: [Elecraft] Elecraft newbie considering K3 vs KX3

Hi Tom, I'm still running a barefoot K2 (cw only) with an amp I can add on when needed. After reading your last post (below) I agree with you that is sounds like good logic to outfit yourself with a radio that you can immediately have fun with. So the SSB mode and additional CW mode sounds like it

[Elecraft] Is anyone configured their K2 to utilize the P3 Panadapter?

Hi All, The P3 Panadapter if provided an I.F. should be able to work with a rig other than the K3. Has anyone modified a K2 for this? Do we know if the KX3 has an output option for setup with the P3 Panadapter? Thanks Duane - N1BBR -- bw...@fastmail.net

[Elecraft] Interested in your impression of the KX3 compared to K2 and K3

Hi All, I am not a contester. I enjoy digging faint signals out of the noise. I'm wondering what your experience with the KX3 is compared to the K3 and K2 in that regard. If there is a significant improvement in capturing weak signals over the K2, I might put the KX3 on my Christmas wish list. :)

[Elecraft] K2: A question about band-pass filter adjustment using Spectrogram?

Hi all, I never used Spectrogram for setting my K2 band-pass filters until a month ago. I used to set the pass-bands by using the S-meter with a fixed frequency signal source. I followed these steps: 1) Zero beat to get a maxed S-meter reading. 2) Dial frequency down until the S-meter drops one

[Elecraft] K2 - Need tips on troubleshooting audio intermittent problem

Hi Gang, I got my K2 a couple of years ago. Once in a great while I would notice the audio volume drop to about 30%. It would typically happen after I had moved the unit or had the cover off doing filter alignments. I found I would simply tap the unit and the audio volume would be normal. I

[Elecraft] 40 meter noise level and K2

I'm sure this question has been asked a ton. It seems that the noise floor on 40 meters is much greater than on the higher bands for my K2. I'm guessing this is just the characteristic of 40 meters. But I thought I would post the question anyway. Thanks N1BBR :) -- bw...@fastmail.net

[Elecraft] K2 with DEM 2 mtr transvertor

Elecraft list de PA2DW, At present I have a K2 with built-in DEMI 2M transvertor. This transvertor was specially desiged for the K2, fits nicely in the topcover of the K2 and is now obsolete at DEMI. The transvertor outputs a 100 mW and has 0 dB gain. As such it is ideal for use with

Re: [Elecraft] 43' Vertical

I've been playing with a 43' vertical for a year or so now. My best setup so far has been raising the base up 24' off the ground. I purchased a telescoping flag-pole to get it up there. I have 24 1/8w radialsthe location where it is cant handle longer. I run 40' of RG213 from the vertical to a

Re: [Elecraft] T1 Remote tuning

Hi George, If your interested in sharing, I would be interested in your config for your tuner. I built a form of the remote balanced-balanced tuner for a 135' doublet a few years before remote tuners came out on the market. It didn't not have the ability to tune up/dwn within each band. Only the

Re: [Elecraft] KPA500 carrying case question

Carrying CaseHmmm... is the KPA500 in production? Sorry Rose for posing a question off your post! Duane I'm about to have foam end caps made for carrying the KPA500 amplifier in a DXpedition case, and I'd like to have some idea of how many to order. They will be identical to the K3

Re: [Elecraft] KPA100 SO-239 Help

Hi John, If it were me, and there is a possibility that the inner wire soldered to the inner pin could freely spin around during the process of taking on/off coax at the back of the unit, I would not take the risk of compromising the inner wire such that it could twist, bird-cage or possibly short

[Elecraft] Got any K2 spare parts you might want to sell?

Hi, I'm hoping its ok to ask this question in this forum. I would be interested in any K2 spare parts people have been storing away and have no need for. Relays, caps, RF-chokes, diodes, bare-pc-boards etc. Looking for reasonable prices. Want to build up my spare-parts box. Tnx, N1BBR --

Re: [Elecraft] What made you decide on purchasing an Elecraft

Went for the K2. The K3 was not in production at that time. But even if it was, I would go for the K2. Went for it because of 3 reasons. 1st: and Top reason - receiver specs. 2nd: Unit size - Its not a desk hog :) 3rd: Kit form makes for enticing price structure I'm really glad I did! I have

[Elecraft] K2 Found the problem with the dead short

First I want to thank everyone who took the time to email me. THANK YOU!!! You went out of your way to helpand I appreciated it. Secondly, I found the problem last night while I was lifting some parts along the 12V buss line. I happened to notice that one of the pads on Q7 (final transistor)

[Elecraft] K2 Help Troubleshooting a dead short on RF board

Is there a particular component on the RF PCB that would fail and give a dead short from 12V to Ground? I'm wondering what component(s) you might look at first? I had the K2 cover off the other night. The unit was turned off and the power supply turned off. I attempted to solder a 2n7000

Re: [Elecraft] Anyone having luck getting the DXpedition S9DX

I was able to work-em, when propagation peaked my way. I've found that I can press the K2's B button down just enough to shift to the xmit freq temporarily. And that way I can pop back and forth between A and B so I can follow along with the stations getting in. Pile-ups are stange animals.

[Elecraft] Question about K2 K3 Aux bus compatiblity

Hi All, I have a question. Does the band select output from the K2 (Aux bus signal coming out of the back of the KPA100) the same signal information that is output by the K3? I am looking at interfacing an amp to the K2 and there is an off-the-shelf cable available but it is advertised as a K3 to

[Elecraft] Setting up the K2 for QSK with a THP amp

Hey Gang, A used THP HL-1.5KFx amp fell into my lap recently. Does anyone on the list use one with a K2? And if so, do you have any tips for me on how you use it? - Did you setup the standard QSK TR interface? - Did you change the Delay setting in your K2? - Did you ever use it without the QSK TR

[Elecraft] Your suggestions for AMP for K2 QRP unit

Hi All, The new EC 500 amp coming out will require the KPA-100 PA for K2 users. I am interested in adding an amp that can run from the K2 without the KPA-100. I don't care about QSK, I can switch the amp ON and OFF XMIT manually or I can build an interface that will switch the amp from the K2

[Elecraft] Your opinion on the easiest 200watt amp

Hi all, For the first time ever, I'm actually toying with the idea of running over 100 watts. So here is my question. To interface with the K2, what do you think the easiest external (200+ watts) amp is? Thanks N1BBR -- bw...@fastmail.net

Re: [Elecraft] Backward balun

If you have an mfj analyzer and a 4:1 balun, you should be able to test it. Just connect up a 50 ohm resistor to the unbalanced side. Set the analyzer for the frequency of interest and look at the R that the analyzer measures. Keep the leads going from the analyzer to the balun as short as

Re: [Elecraft] K2 Remote Power On/Off Ideas

If your PC has a centronics printer output, you could setup a photo-isolator switch. Then build a Free-Basic executable to toggle it from the web? There are LED-photo-isolator switches that will handle 120VAC also. Just a thought N1BBR -- bw...@fastmail.net

Re: [Elecraft] K2 KPA100 Behaving Badly...

Rig resetting. Yes mine does this also with experimental antennas. I think your rightits too much RF on the outer conductor of the coax feed or RF in the shack. N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home:

Re: [Elecraft] A K2 question - checking the amp

Hi Dan, You might check the DC bias voltage on the current sense resistor near U7A. I would guess that it would be higher when the K2 Power is set above 10 watts then when it is set below. This shift might represent Emitter current acting somewhat normal. Perhaps check the voltage difference

Re: [Elecraft] internal vs. external (230 with no DC applied)

Hi Randy, It took me a minute, but I see what your refering too. I should have been a bit more careful in my wording. I should have said I don't believe the unit uses latching relays, and so ~100mA on the DC line is required in order to re-activate them. The Processor internal EPROM, does retain

Re: [Elecraft] Internal vs. External (230 and experiments)

Hi David, To my knowledge, the only way I could check the L/C on it would be to tune with the unit cover off and then disconnect input/ouput and measure both L C. Otherwise it is just a go/no-go test. I did build an L-network station that I use for manual testing. For the inductor, I used a 6

Re: [Elecraft] internal vs. external ATU

I am with Rick on this subject. I also use the SG-230 in external config. The thing I like about the 230 is its extended reactance ranges. This comes in handy for multi-band antennas, especially where the Z @ frequency, is highly capacitive. Internal ATUs are frequently size-constrained and are

[Elecraft] K2: Almost think I might have licked the little buz fan

Just for kicks I fabricated 6 aluminum fins 2 high and 5.5 long out of .06 aluminum. Pinch fit them every other rib on the right hand top of the K2 heat sink using a touch of arctic silver heat sink past. Ran the unit at full tilt for 2 hours worth of rag-chewing. Checked for heat with my hand

[Elecraft] K-3 not keying Amplifier

I was curious as to the resolve on this issue? I wondered if it was an issue of the AMP not getting a sufficient GND sense on the keyed output? N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home:

Re: [Elecraft] K2 - Isolation box construction for digital

My instincts would agree with Bob on this question. You might consider using stereo jacks with (Ring Tip) only wired and use the GND as sheilding. Or you could omit the connector and wire direct out with a rubber grommet in the box wholes. N1BBR

Re: [Elecraft] On the subject of Amplifiers

Hi Willis, I looked at AD5X's web-page and I see he is using a pair of SPDT relays. One of the cool aspects of that design is the incorporated AMP bias switching. I wonder how much switching noise the relays make? I've seen a few articles on the use of reed relays for switching the AMP in/out of

[Elecraft] On the subject of Amplifiers

The recent thread on a possible new Elecraft Amp has made me ponder about TR switching circuits to an external amp from the 10-watt K2. I'm guessing that for QSK operation, one has to have a TR relay with a fast transition speed. And on top of that, the relay contact ratings would have to handle

Re: [Elecraft] 'scratchy' audio pot on K2??

Thanks Don, Thats good information. With that understanding , wisdom would dictate that the AF pot be replaced with its original. I won't bother to change mine however as its working beautifully as is. It made me wonder what percentage of K2 builders have mistakenly swapped those two pots and

Re: [Elecraft] 'scratchy' audio pot on K2??

Hi Allan, My audio pot started acting finicky after only a few weeks of use on the K2. I swapped it with the RF gain pot. I adjust the RF gain only a tiny amount anyway in normal use. Check first to make sure they are the same value. Some K2s may not have had identical pots. Also, you'l want to do

Re: [Elecraft] Man Hospitalized = Hyperbole

Hyperbole: From Greek, it means 'exaggeration'. Hyperbole is a literary or oratory device used to create emphasis. The goal is to get the audience to connect with the main points of reference in order to derive understanding embedded within the message. I cannot speak to the offence of this

[Elecraft] k2 DSP and Take from Hiroshima

I thought to post this as a thankful comment concerning the K2 DSP. The other evening it seemed like 30 meters came alive. First Slovenia, then Nigeria, then the Bahamas and then 9J2FM, Take from Hiroshima. It was with the Hiroshima station that I realized I wouldn't have been able to copy without

Re: [Elecraft] Elecraft Amps

It will be interesting to see what Elecraft decides to do. It is a strategic market question. There are a number of amp solutions currently. I'm sure that the K2 K3 owners using them have applied the necessary ingenuity to obtain satisfactory compatibility. Also a certain popular amp

[Elecraft] K2: DSP tutorial - or other references

Have you looked at the The Nifty Mini-Manual? It has 3 pages on the DSP settings. I find it really easy to follow. The people who sell these are wonderful people. In the following Hold means hold the button(s) for a count of 3 seconds My most common Non-configuration adjustments during normal

[Elecraft] Isolation headphones

I think I've tried everything. I have the David Clark and another Sound studio set of over-the-ear headphones that are rated at around 24db isolation. Both of them are not sufficient for my shack environment when its noisy. I think the best I have are custom molded inner-ear units that I had

[Elecraft] K2: diodes for using straight key?

It seems I read somewhere that there is a diode mod for the K2 so that a straight key can be input into the unit along with a paddle and the K2 can tell the difference and one can use both keys? Or was I dreaming :) N1BBR -- bw...@fastmail.net

Re: [Elecraft] Signal - RF Generator

Hi, This may not help you much but I use a very simple crystal-can oscillator which is set at a fixed frequency of 7,328.00 Mhz which I purchased from mouser. It is rock solid stable and only cost me $25 with the rest of the parts. I use it primarily to align my K2 filters and the main display. I

[Elecraft] Arctic Silver - anyone using it instead of thermal-pads?

Hey Gang, Anyone using Acrtic Silver instead of the thermal pads on the 2879s? Interested in your comments. Tnx, Mr. D N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] Robert Friess's 100watt amp

Hey Gang, Is anyone using the 100 watt amp shown on the Elecraft Hands-On page? Tnx, N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

[Elecraft] K2: Old Filter question - - (underwater noise)

Geoff asked for the web-site Here is one of the links: http://home.pacbell.net/johngreb/Mod_To_Improve_K2_CW_Filter_Rejection.pdf N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home:

[Elecraft] K2: An old filter question - - the underwater noise

Hi Gang, I searched the archives but couldn't find anything on this question. A few days ago I browsed into a web-site where a K2 owner described what looked like a modified grounding scheme for the crystal filter cans, saying that it reduced or eliminated what was described as underwater noise

[Elecraft] Whats the least price going now-days for a used KX1?

Thanks guys. I'm looking to see if my budget could afford a used Kx1 these days. Your thoughts appreciated on the expected lowest price for a used unit. tnx Duane -- bw...@fastmail.net __ Elecraft mailing list Home:

[Elecraft] High SWR on 20 and 40

I have done this in the past to deal with ladder line length on multi band use. cut the following lengths of ladder line. 1 foot 2 foot 4 foot 8 foot Solder alligator clips on all ends By using these in combinations, you now have the ability to increase your line length from 1-15 feet. Test SWR

Re: [Elecraft] 40 meter Elecraft net

Man, some people can be RUDE! I can't tell you how many times I've found myself listening to a couple of hams in a friendly rag-chew, and someone comes right in on top of them, tunes up and calls CQ. Anyway..when is the Elecraft 40 meter CW net scheduled? Thanks Duane N1BBR --

Re: [Elecraft] New K2 build - encoder problem

If you haven't already found the problem. Another thing you can check is U2. With the rig off, 3,4,5,6 11,12,13,14 should all read 100K ohms to VCC pin(18) With the rig on, these should all normally be at VCC voltage. -- bw...@fastmail.net

[Elecraft] Alan: Small plastic cases

Hi Alan, Check out http://electronicsusa.com/miniboxes4.html Also check www.allelectronics.com They have a bunch of small plasti boxes, many with 9volt batter compartments Have fun!! :) Duane -- bw...@fastmail.net __ Elecraft

[Elecraft] utilitie for logging and fast retreaval of qso?

Hi Gang, Is there a software product that can detect my external cw keyer, and read my cw while I'm keying the call-sign of a ham in a qso? And then if it finds a previous qso logging based on that call-sign, pull up that info? My computer doesn't have a sound card input so it would need to be

Re: [Elecraft] k3 - SWR-Meter acurracy?

Hi Martin, This topic passed through the group a couple of weeks ago. Don has some very good comments on it. I can make a few *un-official** comments based on my own limited experience. I am a K2 owner rather than a K3 owner, however, I have a hunch the SWR circuits are close approximations.

[Elecraft] K2: Your common usage of the DSP

Hey Gang, When I first started using the DSP in the K2 I thought I would probably use the noise filter portion of it more than the bandwidth control. As time has gone by however, I find myself more prone to use the bandwidth as a pretty effectual way of reducing band noise. So of late I've

[Elecraft] Off-Topic: CW sending vs. recieving speed

What's the general consensus? Is it logical to assume that a person's CW sending speed approximates their copy speed? I can't help but assume this, and so when I call CQ and get a return caller sending at half the speed which I called or sending extreme farnsworth, I almost always lower my speed

Re: [Elecraft] Steve KZ1X/4 - mag loop

Hey Steve, Thanks much for posting this! Is your driving loop approximately 10% the diameter of the full size? If I remember, that's how I did my loops. Totally awesome to have a vacuum cap!! Makes the whole design so much nicer. I picked up a surplus motorized potentiometer to drive my cap and

Re: [Elecraft] Magnetic Loops - Stan

Hi Stan, I've built a number of mag loops. I've used aluminum tubing, copper, and hard-line coax as the main sections. I purchased a dead AEA HI-Q loop unit on ebay for cheap years ago and pulled the capacitor off it. The ERP is off-course compromised compared to a dipole. However, its advantages

[Elecraft] playing with Son-of-ZeroBeat circuit

Just a fun note: I got this little circuit in the mail yesterday and put it together last night. Its pretty cool, but lacks AGC in the front-end for serious use. It comes with a gain pot and it really does find zero-beat well. For kicks I might add AGC to it to see how effectual it might be.

Re: [Elecraft] KDSP2 LED Stays On and No Audio

Hi Ed, The manual indicates that the LED will come on if an unrecognized command is issued by the controler chip. Did the modification change anything on the connector J3? In off-chance, disconnect the two PCBs, clean the connectors and re-assemble? Just some off-the cuff thoughts. Duane N1BBR

[Elecraft] K2 CAL_FIL and the BFO

Hi Steve, A wierd quirk on my part, is I fuss over my K2's Filter settings. It took me about an hour, and a little home-brewed rock-solid signal source, but I am able to get all 4 filters so that I can not hear any shift at all in tone from one filter to the next. I know I'm a strange bird But

Re: [Elecraft] Looking for a radio kit

Alan, While your looking, check out this totally cool site http://www.schmarder.com/radios/crystal/01.htm Duane N1BBR -- bw...@fastmail.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] KAT2 Power problem (more)

Hi Tom, You've probably done all of this, but just to run over some of it. Have you tried putting a dead short to ground on the + pin (3) of U4? Check the output, it should follow. Best to confirm this with R6 out of the circuit. The old LM234 op amps were a bi-polar technology and they would

[Elecraft] Built and installed the KDSP2 - now to figure it out :~]

Well, Don mentioned to me the possibility of the KDSP2 a while ago, and lo-and-behold, the piggy bank said yes. Elecraft, as usual, processed the order in ASAP fashion and all the way across the good-ol U.S.-of-A it came. Took me about 2 hours to solder it up and get it into the K2. I'm super

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