[Elecraft] Adjust ALC in Data A mode, with KX3
Hi, I've just re-acquired a KX3, and have been trying it on JT65. As per recommendations I have been trying to use Data A mode, but trying to adjust the drive level is a nightmare, and getting the required 4-5 bars of ALC has been near impossible. If I switch to USB mode, I can set the drive levels without issue using the mic gain, and adjusting the sound are levels. I would have assumed that setting drive levels would be the same in USB mode as it was in Data A mode. Is this not the case or do I having something else going on. Apologies as I appreciate the subject of JT65 has been covered extensively in the past, but I can't figure out why I seem to be able to set things up in USB mode easily, but can't in Data A. Cheers David, vk2nu Sent from my iPad __ 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 list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K2 and SDR-IQ
Hi, I wonder if anyone out there is using a SDR-IQ as a panadaptor for a K2? Just acquired a SDR-IQ and looking for suggestions on how I can set this up? I have the Z10 buffer IF mod in the K2, and can tune the software (SpectraVue and SDR Console) to the K2 IF frequency of 4915kHz and get a Spectrum display, but haven't been able to interface the K2 into the mix. Also wonder if anyone is using CW-Skimmer with this et-up and how they have interfaced it?? Thanks for looking David, Vk2NU __ 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 list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2/100 issue
My K2/100 seems to have developed an issue. On key down I seem to be getting maximum power output, irrespective of where the power control is set. I am getting no power output indication at all on the inbuilt power meter in the K2! When I press tune, the K2 tells me I have 9.9:1 SWR and only a few watts of output, but my external meter tells me I have full output (well over 100w, and a 1:1 SWR). This happens irrespective of whether I use a dummy load or antenna. The K2 seems to work normally with the KPA100 disconnected, and RX is fine. I'm guessing I have a issue with the SWR/power output sensing in the KPA100, but would apreciate some help on what components to check. The K2/100 has been working fine to this point. Cheers David, VK2NU __ 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 list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K2] KPA100 - Antenna Help
Hi All, A bit of a strange one here.. Short story, I have just built and installed a KPA100 internal amp for my K2. All is going well with the set-up and I have been using fine with a multiband vertical I have at home. Problem is I put up an end-fed 1/2 wave vertical to use in a local contest this weekend and I am seeing a strange phenomenon!! Below is a series of observed events. 1. Erected antenna, checked SWR with analyzer (SWR 1.2:1) 2. Connected to K2/100 via about 10m of RG-213 and checked SWR using 10w = SWR still 1.2:1, so far so good. 3. Turned up power (50w), checked SWR, getting Hi Refl reading on K2, and external meter, blown fuse in K2/100 lead. 4. Replaced fuse, check again at 10w OK, turn power up to 11w and engage KPA100, get Hi Refl.. 5. Check K2/100 using dummy load and my other multiband vertical, all OK at 10w and 100w. 6. Use K2 at 10w to drive my external amp, to 400w to check the 1/2wave antenna and all OK, SWR 1.2:1 7. With the KPA100 engaged the power seems to way overshoot on the K2, hence the blown fuse. However, this doesn't happen into a dummy load or other antenna. Looks like my K2 with KPA100 doesn't like the 1/2 wave end-fed antenna at all, but for the life of me not sure why. I first though I must have burnt out the 1/2wave matching circuit somehow on the antenna, but obviously this is OK as it will handle 400w. The end fed 40m halfwave is home-made, and is basically a airwound coil with a couple of doorknob capacitors in series to match the high impedance at the end of the 1/2w wire to 50 ohms. In short it is a beefed up Par-End Fedz antenna. Speaking of which, I have a couple Par-End Fedz antennas, which I plan to check to see if I get the same problems. Any suggestions would be appreciated. David, VK2NU __ 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 list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K2] KPA100 - Antenna Help
OK, to add to my last, I've just tried with a different antenna on 40m. Again, once I engage the KPA100, I get high SWR, power overshoot and a blown fuse. So it doesn't seem to be antenna related but seems to be band related. 30m-10m is Ok. I don't have an antenna for 80/160 so can't check. All bands are fine with a dummy load... David - Original Message - From: David Douglass To: elecraft@mailman.qth.net Sent: Saturday, June 12, 2010 12:04 PM Subject: [K2] KPA100 - Antenna Help Hi All, A bit of a strange one here.. __ 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 list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K2] Parts for sale
Still have for sale the following items.Make me an offer, I can ship worldwide for $20US Top Cover, with built in KAT2 (Internal ATU), KIO2 (RS-232 Serial Interface) and KBT2-X (Internal battery Kit, not including battery). All items checked and working FB. Cheers David, VK2NU __ 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 list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [K2] Parts for sale
Hi All, I have the following K2 bits for sale. I bought these as part of a built K2, but am upgrading to 100w and won't be needing these. Top Cover, with built in KAT2 (Internal ATU), KIO2 (RS-232 Serial Interface) and KBT2-X (Internal battery Kit, not including battery). All items checked and working FB From my calculations this is nearly $320 US worth of accessories, plus a spare top cover and speaker. I would like to sell these for $200US plus $20post airmail to anywhere in the world. Cost will only be $10 post to a buyer in VK, although I suppose chances of this are slim! Note, I am only selling the above parts and not any additional bits that solder onto the K2 itself! The K2 also has a built in K60XV Transverter board, which I have no need for and get annoyed at having to scroll through the 60m band when I change bands. I have not checked this (although the 60m band as mentioned is enabled). I will sell this for $40US plus $5 shipping worldwide. Obviously if you buy items, you will save on postage. Note I am only selling the board itself, you will need to find your own connectors etc. All payments via PayPal, unless you are in VK, and we can talk!! PLEASE E-MAIL OFF LIST. Cheers David, VK2NU __ 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 list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2 Pwr Out Problems
Hi All, My K2 seems to have developed a power output problem. Set-up is a QRP K2, with SSB, internal ATU and KIO2 options. I get full power output on CW OK, but only get a Max of about 1w RF output on SSB. If I remove the top lid, and therefore disconnect the internal ATU and KIO2, I then get full output on SSB and CW. I've also tried just plugging in the ATU and leaving the KIO2 out of line, and this seems to give full output?? Could there be a problem on the KIO2 that is causing me to loose SSB output?? Leaving the KIO2 inline but turning it on and off in the menu does not effect things. Any ideas.. Thanks David, VK2NU __ 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 list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 - Strange Tune Behaviour
Hi All, I've been having issues since last night with an inability to use the Tune Function on the K3. I use Tune to get a carrier to tune my amp (an Emtron DX-1). Usually this works fine, but now the Tune simply turns itself straight off after it is pressed when I have the amp turned on. The Tune funtion still seems to work OK on lower power without the amp. I'm assuming this may be related to my antennas being saturated at the moment (we've had steady rain for a full week), although according to the SWR reading on the radio and my external tuner all is still OK. Does the K3 have some sort of sensing that will turn off Tune if it suspects a problem? I am able to tune the amp manually with a straight key, but this is a pain as I have to plug and unplug cables everytime. Thanks David, VK2NU__ 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 list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Re: Buddipole vs. tuner and wire
If you are more interested in DX, go for the Buddistick? I replaced the whip on mine with a 12foot MFJ telescopic whip and added an extra pole under the coil, this meant I could bypass the coil on all bands 20m and up. It worked well with a good counterpoise/radial system. All the Buddipole stuff is very good quality, but not cheap, and as mentioned you can get a 10m telescopic fiberglass pole for a fraction of the price, and make something around this which would out perform a buddipole. David, Vk2NU ___ 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] [K3] Disable 5mHz
Hi All, Still trying to figure out all out all the 'ins and outs' of my K3. Quick question, can I turn off the 5mHz band, so when I scroll through the bands using the up and down band buttons, it doesn't show up?? We don't have access to this in Australia, and I don't have any real interest in listening in!! thanks David, VK2NU ___ 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] [K3] DVK and mic routing
Hi All, Looks like I'll be using my K3 in the upcoming CQWW WPX SSB contest, and have a question regarding routing the mic for DVK. Is it possible to enable the front panel, and rear panel inputs simultaneously? I'd like to connect the rear panel input directly to the soundcard output on the PC, whilst still using my headset on the front panel input?? From what I can read in the manual I can only enable one input at time in the menu? I know I could plug my heil into the soundcard and work around that way, but using both inputs would save me having to make a jumper cable, as my heil headset is hard-wired into an 8 pin connector! Thanks David, VK2NU ___ 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] [K3] VFO B Behaviour
Hi Just a quick question.. I’ve somehow managed to set up my K3, so that when I tune the main tuning knob (VFO A), that both the VFO A and VFO B frequencies change. Not sure how I’ve done this, but would like to stop it?? I’ve looked in the manual but can’t find anything on this.. Thanks David, VK2NU No virus found in this outgoing message. Checked by AVG. Version: 7.5.518 / Virus Database: 269.21.6/1318 - Release Date: 7/03/2008 2:01 PM ___ 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] [K3] VFO B Behaviour
Thanks Ken, That fixed it.. Cheers David, Vk2NU -Original Message- From: Ken Wagner [mailto:[EMAIL PROTECTED] Sent: Sunday, 9 March 2008 8:55 AM To: David Douglass Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] VFO B Behaviour Check the Release Notes for the latest Firmware revision. 73, Ken K3IU David Douglass wrote: Hi Just a quick question.. I’ve somehow managed to set up my K3, so that when I tune the main tuning knob (VFO A), that both the VFO A and VFO B frequencies change. Not sure how I’ve done this, but would like to stop it?? I’ve looked in the manual but can’t find anything on this.. Thanks David, VK2NU No virus found in this outgoing message. Checked by AVG. Version: 7.5.518 / Virus Database: 269.21.6/1318 - Release Date: 7/03/2008 2:01 PM ___ 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 No virus found in this incoming message. Checked by AVG. Version: 7.5.518 / Virus Database: 269.21.6/1318 - Release Date: 7/03/2008 2:01 PM No virus found in this outgoing message. Checked by AVG. Version: 7.5.518 / Virus Database: 269.21.6/1318 - Release Date: 7/03/2008 2:01 PM ___ 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] K3 new Build Problem??
Hi All, I’ve just finished building my K3/100.. All went well but I seem to have a bit of an issue. In RX the radio works fine for a while, but then it goes deaf for a short period of time. There is then a loud popping sound from the speaker, and all returns to normal. This just seems to repeat, with the radio working fine for a couple of minutes and then going deaf?? Any ideas?? I thought I would try the list first before getting in touch with support in case it is something basic?? Cheers David, VK2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.6/1317 - Release Date: 7/03/2008 8:15 AM ___ 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] K3 new Build Problem??
Going to answer my own question here!!! PSU voltage was too high I modified my fixed 13.8 supply a couple of years back for charging my K2 batteries, and somehow I had the PSU delivering 17v !!! When turned down to 13.8v, all is good. Cheers David, VK2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.6/1317 - Release Date: 7/03/2008 8:15 AM ___ 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] KUSB - Vista Issues
Hi All, Just installed a KUSB to run my K3, but it doesn't seem to want to install correctly under Vista. I've tried just plugging in the cable and letting Vista install the drivers automatically. I've also tried downloading the drivers from prolific and loading them manually, and finally I've also tried installing the drivers from the supplied disk. In each case I can see the device in Device Manager, listed as 'Prolific USB-to-Serial Comm Port (Port 5)', but it shows the little yellow '!', and it says that the 'Device Cannot Start. (Code 10). The Driver version is listed under 3.0.0.0 under the Driver Tab, which I believe should be 2.0.2.8 ?? Any ideas what I'm doing wrong ?? Cheers David, VK2NU ___ 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] [K3] - serial # 544 arrival
Hi All, For those tracking shipping dates, kit # 544 arrived in Australia today. Was ordered 16th/June/07. Arrived a little late due to some ‘confusion’ over the confirmation of the order, but it’s finally here and hopefully the memory of the long wait will diminish!! Just have to try and put it all together in 24 hours for the Commonwealth Contest tomorrow night!! David, Vk2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.21.6/1315 - Release Date: 6/03/2008 9:07 AM ___ 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] Shipping Status Page
Firstly sorry for the post and I'm not wanting to start another lengthy debate on shipping. However, I've just checked the shipping page and note that it still contains the following info... 'K3 orders received after Oct 17th are targeted for shipment in mid-late January. New K3 orders received after Nov 26th are targeted for mid Feb. delivery.' I hope I'm off the mark here, but this seems very (very) optimistic considering orders from early May are still shipping, and that will leave orders from May through to mid October still to ship (including Dayton orders and early orders taken without deposit) before mid January !! I wonder whether it would be possible, now that you have a handle on shipping capabilities, to update the shipping page with revised (more realistic) targets when you do your next weekly update? Thanks David, VK2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.16.15/1173 - Release Date: 5/12/2007 9:29 PM ___ 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] K3 into VK
Hi Glenn, Seeing as you are so far from Sydney, I could pop down and pick it up for you I’ll even give it a try out and will return it (maybe) after CQWW next weekend. Seriously though, well done, I would imagine this might be the first one in the Lucky Country !!! Regards David, VK2NU Hi Group, Well, at last...my K3/10 has arrived in VK...delivery now Monday next week according to UPS ( I'm quite a distance from Sydney, where the K3 will be spending the Weekend ). Many thanks to the overworked Lisa, who is doing a fantastic job to satisfy a lot of very keen expectant K3 Owners ! So, sometime next week, a K3 will burst to life in VK Land. 73 Glenn VK4TZL/VK4BG No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.32/1131 - Release Date: 14/11/2007 4:54 PM ___ 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] Re: [K3] Second Run
You make a good point Nick.. One bonus of all the delays is the favourable exchange rate!! I actually contacted Lisa last week to make my remaining 50% payment and pay for the options as the US dollar is very cheap in VK at the moment. I’ve probably saved myself a couple of hundred AUS$ or so, on the rate of 6 months back, so it seemed like a good time to lock it in as I'm sure this won't last. David, VK2NU and the exchange rate stays as favourable to us Gs as it is today! 73 Nick G3RWF No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.14/1100 - Release Date: 30/10/2007 6:26 PM ___ 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] [K3] CW via serial cable question
Thanks Ed, I was actually only joking and I didn't think this would be possible -- excellent stuff Cheers David -Original Message- From: Ed Muns [mailto:[EMAIL PROTECTED] Sent: Monday, 15 October 2007 5:17 PM To: [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] [K3] CW via serial cable question One less cable between the radio and PC is always good news, now if you could only assign FSK keying to the serial cable I could forget all about the 15 pin plug on the back of the K3.. This is on the K3 firmware task list. Just a small matter of firmware, but there are other higher priority features Wayne is working on. 73, Ed - W0YK No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.11/1071 - Release Date: 15/10/2007 6:48 AM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.11/1071 - Release Date: 15/10/2007 6:48 AM ___ 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] K3 shipping
Hi All, Sorry to add to all the mail, but I see there appears to have been changes to latter production runs of the K3’s, as per the shipping schedule page. New K3 (3rd Pr. run) orders received after Oct 1st are scheduled for shipment in early January. I assume by this that runs 1 and 2 have been made bigger, as from memory, I was in Run 3 when I ordered back in mid-June. Apologies if I've missed something here, but can't remember reading anything about this ?? Cheers David, Vk2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.488 / Virus Database: 269.14.6/1059 - Release Date: 9/10/2007 8:44 AM ___ 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] K3 ship dates - ? for Elecraft
Snip…Please speculate as to the shipping status for Production Run #2. I suppose ditto Run 3.. I may have to start think about buying an ‘interim radio’ for CQWW CW as it's looking like I'll be cutting it close in having my K3 in time!! Cheers David, Vk2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.484 / Virus Database: 269.12.10/977 - Release Date: 28/08/2007 4:29 PM ___ 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] RE: FS:K2 plus extras
In preparation for my K3, I must unload my K2. K2 serial # 5334 KSB2 K160RX KNB2 KAF2 KPA100 KAT100 Finger Dimple KAT2 (In original top cover) KBT2 (in original top cover) Aftermarket headset with mic In great condition, with all manuals, boxes, leads etc etc. Has the mod for keying an amp from the base K2 and for a low level fixed audio out from the back panel. Shipped anywhere in the World via airmail for US$1200 (PayPal OK) Contact direct to [EMAIL PROTECTED] Cheers David, VK2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.11.0/929 - Release Date: 31/07/2007 5:26 PM ___ 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] K3 External Keyboard
We’ll here is my one and only query Re: K3.. (all the others I’ve had have been answered already).. It was mentioned that a Keyboard will be available in the future for RTTY, PSK etc.. Is it planned that this could be used for CW also ?? Cheers and look forward to the release… David, VK2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.6.2/784 - Release Date: 1/05/2007 2:57 PM ___ 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] Question about K2 power meter
Just in case anyone else is suffering from unstable power out in tune mode, I followed Don’s advice (as below) and changed R98 on the RF (270ohm) board for a 1.5K resistor (I actually had a measured value of 1.64K on the POT but 1.5k was the closest fixed resistor I had). Now when I enter tune, power output is much more stable, although it still creeps up slightly with time. This makes tuning my DX-1 a lot easier and I'm not tripping the amp out! Power out on 10m is down a little on the basic K2 (about 12w max), but I'm still getting 100w with the K2/100.. David, VK2NU If the variation is quite bothersome, your K2/100 may be a candidate for increasing the value of R98 (on the bottom of the RF Board) to slow down The power variation. If you increase it too much, the power output on the higher bands may decrease (check that with the basic K2, not with the KPA100 powered). In most cases, about 1k is the upper limit for the value, but if your K2 has greater gain than the average, you may find success with even higher values. It is easiest to substitute a 2k pot for R98 when testing for the best value, then measure the pot resistance and put in the nearest fixed value resistor. This procedure is listed on the Elecraft website - in Builder's Resources IIRC. 73, Don W3FPR No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.463 / Virus Database: 269.5.10/774 - Release Date: 23/04/2007 5:26 PM ___ 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] K2/100 speaker audio
Hi All, Have just noticed that I'm hearing nothing through my K2/100 speaker. Headphones work OK and fixed audio out is fine, but nothing on the speaker or at the external speaker jack. Would I be right in thinking that the headphone socket on the front panel could be on the blink ?? Thanks David, VK2NU -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 269.5.1/764 - Release Date: 17/04/2007 4:43 AM ___ 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] Antenna Analyzer
Tom, Any thoughts about the 259B? Check out the following site and look at the projects link. The SCARC sell a Antenna Analyser kit ($140AUS including international postage, which will be not much over $100US) http://www.scarc.org.au/ I have built one of these and it works FB. It is not of the same quality as an Elecraft kit, but the price is good and you get the added bonus of making it yourself. David, VK2NU PS...maybe this should be something Elecraft should look at adding to there product list in the future, I'm sure this would be a goer !! -- Message: 18 Any thoughts about the 259B? -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.10/720 - Release Date: 12/03/2007 7:19 PM ___ 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] Question for UK members (PSU and Amp)
I have a couple of queries that some UK members may be able to help me with !! I have seen on the web a 20amp Watson Power-mite switch-mode PSU available in the UK. This looks a great size for use with my K2 on my travels, I just wonder if anyone has used one with the K2 and if they have any comments (i.e. any noise of RF problems)?? Also I’m seriously thinking of getting a Linear Amp UK Ranger 811K amp kit. Again has anyone built one of these, and if so, any comments. I like the idea of building the amp from a kit, and the Elecraft amps are out of my price league. Thanks David, VK2NU -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.10/720 - Release Date: 12/03/2007 7:19 PM ___ 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 - 20m receive
Hi All, I’ve have a suspect issue with low RX on 20m. The level of background noise on 20m is substantially lower than other bands, and in general the RX level on 20 seems down to other bands. I’ve suspected this of being the case for a while but just noticed more over this weekend in the BERU contest. I can still receive stations, and local VK and ZL still give strong signals (s9 plus), but I have a feeling something is amiss. The receive level on 20 is comparable with other bands with the pre-amp turned off (and before you ask, I have the pre-amp on). I have full power out (on K2 and K2/100) on 20 and therefore think that I have the alignment pretty much OK. Is there any parts in the 20m RX path that I should suspect that are specific to receive on this band, and not shared with TX or neighboring bands? I plan to do a full RX and TX alignment, once I have a good nights sleep, but thought I would check here first !! Thanks David, VK2NU -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.8/716 - Release Date: 9/03/2007 6:53 PM ___ 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] RE: K2 - 20m receive
Hi All, I’ve answered my own question !! just tweaked C21 and C23 and now have more ‘oomph’ on 20m RX, with same power output !!. Even though I’d tweaked these for max power output originally ?? Anyway, sorry for the bandwidth. Regards David _ From: David Douglass [mailto:[EMAIL PROTECTED] Sent: Sunday, 11 March 2007 8:32 PM To: 'elecraft@mailman.qth.net' Subject: K2 - 20m receive Hi All, I’ve have a suspect issue with low RX on 20m. The level of background noise on 20m is substantially lower than other bands, and in general the RX level on 20 seems down to other bands. I’ve suspected this of being the case for a while but just noticed more over this weekend in the BERU contest. I can still receive stations, and local VK and ZL still give strong signals (s9 plus), but I have a feeling something is amiss. The receive level on 20 is comparable with other bands with the pre-amp turned off (and before you ask, I have the pre-amp on). I have full power out (on K2 and K2/100) on 20 and therefore think that I have the alignment pretty much OK. Is there any parts in the 20m RX path that I should suspect that are specific to receive on this band, and not shared with TX or neighboring bands? I plan to do a full RX and TX alignment, once I have a good nights sleep, but thought I would check here first !! Thanks David, VK2NU -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.8/716 - Release Date: 9/03/2007 6:53 PM -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.446 / Virus Database: 268.18.8/716 - Release Date: 9/03/2007 6:53 PM ___ 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] Portable K2 battery question
Hi All, I’ve just picked up 5 x 12v new sealed lead acid batteries (7Ah) at the local Hamfest with a view to using them as a portable supply for my K2 (in the upcoming John Moyle Field Day ). I’ve wired these in parallel, but was just curious whether anyone has any recommendations regarding use, charging etc etc, as I’m new to any sort of battery/portable operation. I also picked up a small 2.5amp charger at the same Hamfest! What sort of life should I expect with the basic K2 under contest condx with this type of battery pack (at full output ~15w, as our local FD has no QRP category)?? Would I be able to power the k2/100 from this, and again, what sort of life would I be looking at ?? Any tips or links to relevant web-sites appreciated !! CHEERS DAVID,VK2NU -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.441 / Virus Database: 268.18.3/693 - Release Date: 19/02/2007 5:01 PM ___ 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] Low pwr output 30m K2/100
Hi All, I've recently completed my KPA100, and have noted that I have low pwr output on 30m (into a dummy load) I am getting about 75w out on this band with Hi-Cur message I've checked the low pass filters on this band using an Antenna analyzer connected to the SO-239 jack of the KPA100 (as per troubleshooting), and this seem fine, and have re-done the transmitter alignment of the base K2 for 30/20m. Any ideas were I should start looking!! David, Vk2NU ___ 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] Amp keying circuit K2
Hi, Just a quick question.. I've just installed the parts in my basic K2 to externally key an amp. I've just tried to key my old FL-2100B with this, but have found that as soon as I plug the cable in, the amp keys when the radio is still in RX ?? Is there a menu setting I need to change or have I made a mistake on the circuit ?? The cable is fine as I use this on my FT1000mp to key the same amp. I've checked the resistance on the keying circuit and I get about 18ohms, when the radio is keyed, as opposed to open circuit when in the RX state ?? Thanks David, VK2NU ___ 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] Amp keying circuit K2
Hi All, Thanks for all the responses to this - much appreciated. I'm afraid it was a simple case of me not reading the instructions on the keying circuit. The FL-2100B pulls 20v on its keying input, whilst the circuit for the K2 is only designed for 5-12v !! This is clearly written on the instructions with the circuit, which I neglected to read. Does anyone have details of a simple circuit I can build, so I can use this with my FL-2100B ?? Again, many thanks for the all the replies !! David, VK2NU -Original Message- From: Don Wilhelm [mailto:[EMAIL PROTECTED] Sent: Tuesday, 18 July 2006 2:58 AM To: David Douglass; elecraft@mailman.qth.net Subject: RE: [Elecraft] Amp keying circuit K2 David, No question is quick if you need to understand what is going on G! The amp keying circuit should work unless the output transistor is being forced into conduction from whatever voltage is being applied on its open collector - it should not be if the voltages applied are within a normal range. Without the amp connected, you can check the base voltage of the 2N transistor - it should be very close 0 volts during receive and about 0.7 volts (the emitter/base junction voltage for the 2N) during transmit. If those two conditions are not true, then you have something wrong with the keying circuit wiring. During receive, the 2N should be cutoff due to the low voltage at its base and should not conduct even with voltage applied to the collector. Be certain the resistance in the emitter path is quite low - a bit of resistance there could cause the output transistor to misbehave. If your problem still is not solved, try measuring the circuit output transistor voltages (to K2 ground) with the amp connected and the K2 in receive. The emitter should be zero volts, and the base should also be very low, while the collector should measure at the voltage applied externally from the amp. Be certain you have a good low resistance connection from the amp ground (terminal E) to the K2 ground and a good connection from the amps RY terminal to the keying circuit's output collector. If you find the conditions above are OK, you likely have a bad 2N. 73, Don W3FPR -Original Message- Just a quick question.. I've just installed the parts in my basic K2 to externally key an amp. I've just tried to key my old FL-2100B with this, but have found that as soon as I plug the cable in, the amp keys when the radio is still in RX ?? Is there a menu setting I need to change or have I made a mistake on the circuit ?? The cable is fine as I use this on my FT1000mp to key the same amp. I've checked the resistance on the keying circuit and I get about 18ohms, when the radio is keyed, as opposed to open circuit when in the RX state ?? Thanks David, VK2NU -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.9.10/387 - Release Date: 12/07/2006 ___ 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] RE:Slightly off top amp question (David Douglass)
Firstly thanks to all who replied to my original post, if I didn't reply personally.. On closer inspection I have so far found 2 ceramic door knob capacitors that were falling apart !! These were not in the input coil alignment section, but near the valves and band-switch in the amp. For you RF guru's out there... I have a couple of questions.. 1. Is it possible to solder these capacitors back together ? They are the flatter type doorknob caps and basically what has happened with both of them is that the one of the screw housings has fallen off the side of each cap (hope this makes sense). 2. Secondly, if this is not advisable, can I just replace these with the standard type (barrel shaped) door knob caps, as long as the KV rating is greater or equal to that of the originals ?? Surplus sales have these for under $20US each Again apologies for the off topic post Regards from a chilly Sydney.. David, Vk2NU Date: Tue, 27 Jun 2006 23:11:36 +1000 From: David Douglass [EMAIL PROTECTED] Subject: [Elecraft] Slightly off top amp question To: elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=us-ascii Apologies in advance for the off topic question! I've just bought an old FL-2100B amp to do up, and run with my K2 (I have the bits and pieces on order for the external keying circuit!!). ___ 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] Slightly off top amp question
Apologies in advance for the off topic question! I've just bought an old FL-2100B amp to do up, and run with my K2 (I have the bits and pieces on order for the external keying circuit!!). When trying the amp out I found that I am getting a pretty high input SWR, and thought I should Align the input coils on the amp. This seemed to work OK on 40m, and 15 and 10m are not too bad (~2:1), but I have a very high input SWR on 80 and 20 irrespective of where I tune the slugs. It looks like the valves in the Amp are the original Centron 572B/T160's, which are lighting up, but are obviously very old (20 years I would imagine). If the valves were on the way out, could this account for my inability to tune the input coils, or should I look elsewhere for the problem ? See I managed to get a reference in there for the K2!! Thanks David, Vk2NU ___ 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] Re: UK import duty
When I got my first K2, I had to pay 10% of valve (~$75AUS) at the post office before I could collect it. I was told this was applicable for all imported items above $500AUS. When I got my second K2 earlier this year I also expected to have to pay the same amount, but was informed by the local postmaster, that customs couldn't be bothered to collect the money on postal items anymore, and I didn't have to pay a thing. Obviously the Australian government are ripping us off enough in income tax, to not have to worry about VAT on imports.. David, Vk2NU ___ 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 160m QSO
Hi All, Just thought I would report my first 160m K2 QSO.. I managed to work VI9NI with my basic K2, loading my short 80m vertical antenna. The K2 tuner would only manage a SWR of 5:1 on this, and therefore the power was rolled back to about 3w on the radio. Norfolk is my 9th country on Top Band, in 9 years of hamming... At this rate I should make DXCC on 160m by the time I'm 140 or so. Regards David, VK2NU ___ 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] Re: Metamorphosis
I'd prefer the K3 to be a fully functioned base HF radio, dual receive, built in PSU-Amp-ATU, FSK etc etc. You could always have VHF as an optional extra ?? David, Vk2NU Date: Tue, 11 Apr 2006 22:02:13 -0400 From: Scott Richardson [EMAIL PROTECTED] Subject: Re: [Elecraft] Re: Metamorphosis To: michael taylor [EMAIL PROTECTED], elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain;charset=iso-8859-1 Perhaps a low powered 6m/2m CW/SSB with FM option rig would be a reasonable project? Something designed as a starting point for the VHF/UHF weak signal operators' basic radio. Great idea, even without the FM option. TenTec discontinued its 6n2 rig. Insufficient demand? Scott N1AIA ___ 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] Receiver comparison K2 v FT1000mp
I've recently completed my second K2 and have been running some side by side trials with my FT1000mp. My first time around, the K2 was my only rig and having nothing to compare it against I had an element of self doubt that something I put together could perform as well as an off the shelf radio. In the end I sold the K2 and bought myself a FT1000mp, which I've had for a couple of years. To cut a long story short I took the plunge and got another K2 a month back, and since construction have been comparing the receiver against that of the FT1000mp. I've got no test gear to speak of, and have just been switching between the two and comparing received signals by ear. What I can report is that at no time were there signals on the bands that I could hear on the Yaesu that I couldn't copy equally as well as on the K2. This is even listening to weak and noisy 80m DX signals. One major difference I did note between the 2 receivers was the overall audio tone in my headphones of the background noise. It's hard to describe, but when comparing the 2 radios using 500hz filter settings, it almost sounded as if the filters on the K2 were much narrower. I was having a listen again today and decided to hook both radio's up through the soundcard and compare them using spectrogram. Both radios were set to 500hz filter settings (I have all of the optional filters installed in the Yaesu), and again I switched between them and observed the display in spectrogram. Lo and behold, the filter bandwidth on the K2 was roughly 500hz as you would expect, but the FT1000mp showed a filter bandwidth in the region of 800hz. I'd always run the Yaesu using the 500hz filters and liked the tone of the radio, and I was wondering why I preferred a filter bandwidth on the K2 around 800hz... well now I know why! I'll probably hang onto the FT1000mp, as I like all features and it performs well, but it's good to know that the K2 (which cost less than the additional filters in the Yaesu) can receive just as well. Just another couple of observations... 1. Along with some recent options I bought for the K2 I ordered a 'finger dimple'. I must say it was $5 very well spent, as I definitely fall into the camp of those who do not like the K2 tuning knob. 2. Also very impressed with internal ATU for the K2. I have a Cushcraft R8 vertical, which I have always struggled to tune on 80m (I know it is a 40-10 antenna). Even the KAT100 which I had first time around would not tune it. Just for fun I tried the internal ATU tonight and it had no problems, and whilst I was listening to the 80 I even managed to work 3D2(Rotuma) and YJ(Vanuatu) using 10w CW. Good stuff !! I hope I can make the trip and work of few of you in the EQP, although I'll be primarily be having a go in the Commonwealth contest at the same time. Regards David, Vk2NU ___ 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 NB Diode
Hi All, I've just finished a putting together most of the options for the K2, the final one being the Noise Blanker. Ham fisted as I am, I managed to break one of the glass bodied diodes (D3 1N34A). I replaced this with a 1N5711 which is listed as an alternative in the manual, but was just wondering whether I should try to source one of the originals or whether I should not worry about it. I was just curious as the 1N34A seems to be a much harder a part to get, and wondered why Elecraft would use these instead of the 1N5711 (which appear to be pretty common parts), if there was no 'performance' difference between the two? Regards David, VK2NU ___ 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] Unused back panel holes
Hi All, Regarding the unused holes on the K2 back-panel.. I've been thinking about plugging these with rubber plugs, as I think the holes/green tape looks a little unsightly. I wonder if anyone has done this, and whether anyone knows a source of plugs that are suitable and the correct size. I'm specifically looking for the plugs for the 2 sets of XVTR holes, as all the rest are soon to be filled in with accessories.. Cheers David, Vk2NU ___ 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 internal battery.. (and MFJ headset)
Hi All, Just a quick question(s).. I've just finished my K2 and have a few of the options on order, including the internal battery kit. I was reading the on-line manual and noticed the info about supply voltage required to charge the battery. This states 14.0 +/- 0.2v at the jack, or 13.7 on the internal voltmeter. I have a small switch-mode supply I use with the radio which according to my DMM is giving 13.9v on the jack, but the internal voltmeter is reading only 13.3v. I have 2 cheap DMM's and they are both giving 13.9v on the jack, so I'm hoping these are a little closer to the truth than the internal voltmeter. How critical is the 14v, and would it be too much of a problem if the supply was actually running at 13.4 - 13.5v from the point of view of charging the battery ?? On a different subject all together, I've also ordered the SSB module, and was thinking of using an MFJ headset I've had sitting about for ages (model MFJ-393). I just wondered whether anyone had tried one of these, and had any thoughts (apart from the usual comments about MFJ !!). I'd planned to wire the mic socket up with the 5.6k resistor supplied with SSB kit as the mic element requires 1-9v. If this fails I have a MH-31 from my FT1000.. Cheers David, Vk2NU ___ 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] Re: fixed audio output on mic socket (David Douglass)
As per my experiments with fixed audio out on pin 8 of the mic socket... Don and Sverre were both correct in their assessment that changing the value of the 10k resistor would make little difference. I tried a 3k and 2k in it's place and could detect no noticeable difference. I did however manage to fix my problem by simply using the 'mic' socket on the PC soundcard, instead of the 'line-in'. In fact I need to run with the slider control on the soundcard set-up at virtually zero, or it will overload. Thanks to Don and Sverre for their advice...Much appreciated guys. David, VK2NU David, I would say the answer is 'maybe'. And the reason for the uncertainly is that it depends on what you are driving.The impedance of whatever you connect to the far end of the resistor will determine how much current will be drawn and the voltage developed across it. You can install the fixed audio board between the front panel and control board if you lay the resistor and capacitors down flat on the board. The fixed audio board will provide up to about 3 volts to the soundcard, and that is much more than enough to overdrive it. 73, Don W3FPR -Original Message- I'm just playing about with my K2 and have performed the mod to get a fixed audio out on pin 8 on the mic socket as per LA3ZA's instructions, using a 10k resistor between R3 and the mic socket. This works fine, but the audio out isn't quite enough to drive my PC soundcard to the level I would like. I have a small board here (as per Don's W3FPR design) for the small audio amp, but would prefer if possible to get the audio out of the mic socket without having to install this board. My question is.would I be-able to get more audio out of pin 8 if I change the value of the 10k resistor in LA3ZA's mod ?? Cheers All David, VK2NU ___ 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] fixed audio output on mic socket
Hi All, I'm just playing about with my K2 and have performed the mod to get a fixed audio out on pin 8 on the mic socket as per LA3ZA's instructions, using a 10k resistor between R3 and the mic socket. This works fine, but the audio out isn't quite enough to drive my PC soundcard to the level I would like. I have a small board here (as per Don's W3FPR design) for the small audio amp, but would prefer if possible to get the audio out of the mic socket without having to install this board. My question is.would I be-able to get more audio out of pin 8 if I change the value of the 10k resistor in LA3ZA's mod ?? Cheers All David, VK2NU ___ 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 #5334 up an running
Hi All, I have K2 # 5334 up and running after completing the alignment stages today. I actually had the thing finished a week ago, but had managed to install U4 backwards on the RF Board, so have been patiently waiting for a new chip to arrive from Elecraft. I should be happy with one mistake, as I had several on my first K2. I'm looking forward to comparing the K2 to my FT1000mp, as my first time around the K2 was my only radio. Regards David, VK2NU ___ 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] For Sale K2 + extras
I have for sale my spare K2 (serial # 4278) This has the SSB option and 160M option, with the MH2 elecraft Mike. All in excellent (as new) condition and ready for shipping. Asking $650US or best offer or equivalent local funds, plus about $40 postage (e-mail for costs to other countries). Please e-mail off list for further details, photos etc etc. Payment via Paypal is fine, or buyers in the UK can pay in GBP to my home address. Regards David, Vk2NU [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] FS: K2 serial # 4278
I have for sale my spare K2 (serial # 4278) This has the SSB option and 160M option, with the MH2 elecraft Mike. All or in great condition. Asking $650US dollars, plus about $40 postage (e-mail for costs to other countries). Please e-mail off list for details, photos etc etc. Regards David, Vk2NU ___ 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] FS KAT100 and KPA100
Hi, I still have for sale the following accessories for the K2 KAT100 ATU KPA100 Amp Both are in great condition and working order, but most go to fund the next project !! Shipping to the US or elsewhere is no problem. $550 US + shipping Please reply off list if interested. Thanks David, VK2NU ___ 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] LF preamps
Thanks to all who replied on this. I've ordered a dual band 160/80 from Array solutions, but will also have a go at a couple of the suggested circuits (now where will I find a 2N5109 in Australia ??) Cheers David, VK2NU ___ 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] 80M Preamp request
Hi All, A little bit off topic I'm afraid, but I'm looking at utilising the RX antenna socket on my K2/100.. I wonder if anyone can point me in the direction of a good 80m (or 80/160m) preamp ?? I've seen the KD9SV web-site but wondered what else was available. Something in kit form would be even better. Many thanks David, VK2NU ___ 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] KX1 for sale
Hi All, I have for sale a KX1, with internal ATU and 30M option. This is now surplus to requirements as I have my K2 up and running. The radio is in great condx and only used once ( on a recent trip to the UK). Would prefer as sale locally, but willing to ship to US or wherever. Looking for $350US, or equivalent local currency or best offer. Possibily will to trade (with cash adjustment) for a FT817. Drop me a note (off list) for details, pictures etc etc. Regards David, VK2NU ___ 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] Fixed audio output
Hi All, I've just done the Mod as suggested by LA3ZA to get a fixed audio output via pin 8 of the Mic socket on my K2. I'd originally built a little amp for this but found that I didn't need it, and there was sufficient audio output direct to the soundcard for the few digital programs I have tried !! I need to have the Soundcard Mic volume set to about 60% for sufficient audio out, as opposed to about 20% with my old TS570, but all seems to be working fine. Just thought anyone contemplating the same Mod might be interested, and might save you a few dollars in parts for an audio amp.. Just need to align some filters now for PSK and RTTY, and I'll be set to go.. Regards David, VK2NU ___ 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/elecraftHelp: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KPA 100 Alignment Question
Hi All, Have just completed my KPA100, and am at the aligment stage. Regarding the aligment of R6 (Bias set). The manual says to connect your DMM in series with the positive power lead, with the + lead of the DMM to the power supply and the - lead to the KPA100 side. I assume this means I connect the +lead of the DMM to + terminal of the PSU, and the -lead of the DMM to +pin of the power connecter where it enters the radio?? Is this correct?? Just for interests sake, what am I actually doing at this stage of the alignment? Cheers David, VK2NU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net http://mailman.qth.net/mailman/listinfo/elecraft You must subscribe to post. Subscriber Info (Addr. Change, Unsub etc): http://mailman.qth.net/subscribers.htm Elecraft page: http://www.elecraft.com
