Re: [Elecraft] Modern battery for K2
Hi Sverre, I am still using this battery external to the K2. It is very convenient as it just sits under the rig and easily connects to the K2 power jack with the attached cable provided, no mods required. Yes the switch needs to be ON both for charging and when in use as a supply for the K2, and yes the LED is ON in this state so will no doubt in time discharge the battery. As it seems very convenient like this I decided to leave the battery external. I have now purchesed another Na I find them to be excellent and much better than the heavier limited Ah SLA batteries. 73, Deni F5VJC On 7 August 2013 16:22, Sverre Holm (LA3ZA) [via Elecraft] ml-node+s365791n7577478...@n2.nabble.com wrote: I wonder what resulted from this. I looked at it also and found that although this high-capacity battery probably fits physically, it may not be a good idea to put it inside the K2 due to the power switch and the indicator LED. See image at e.g Aliexpress.comhttp://www.aliexpress.com/store/product/DC-12V-9800mAh-Super-Rechargeable-Lithium-ion-Battery-Pack-T-1298A/810723_539046329.html. If fitted inside the K2, the switch must be on and then the indicator will discharge the battery - unless someone has found a way to disable the LED without damaging the battery. As an external battery, it would be excellent though, as far as I can tell. Deni F5VJC wrote HI I have just acquired a Super Polymer Lithium Ion battery from an Ebay seller, it's part no. is DC 1298A, (12V 9.8Ah) Also received a small charger with this battery for 120-240 Vac. The physical size seems like it will easily fit inside my K2 with room to spare. Sverre, LA3ZA K2 #2198, K3 #3391, LA3ZA Blog: http://la3za.blogspot.com, LA3ZA Unofficial Guide to K2 modifications: http://la3za.blogspot.no/p/la3za-unofficial-guide-to-elecraft-k2.html -- If you reply to this email, your message will be added to the discussion below: http://elecraft.365791.n2.nabble.com/Modern-battery-for-K2-tp7574669p7577478.html This email was sent by Sverre Holm (LA3ZA)http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=user_nodesuser=175210(via Nabble) To receive all replies by email, subscribe to this discussionhttp://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=subscribe_by_codenode=7574669code=Zm94Zml2ZS52amNAZ21haWwuY29tfDc1NzQ2Njl8LTEwOTI5ODYzOTE= -- View this message in context: http://elecraft.365791.n2.nabble.com/Modern-battery-for-K2-tp7574669p7577479.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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] K3USB ??
I bought a K3USB when I ordered my K3, quite now some time ago... I have never used it as I've been using a standard serial port with my K3. Now I want to convert to USB and of course I've lost the K3USB device. I can't even remember what it looks like! Can someone describe, or better still send me a pic of the K3USB so I know what I'm looking for? I have vague recollections of a silver screened cable with a clear outer sheath...? Any help appreciated, thanks Deni, F5VJC K3 325 -- View this message in context: http://n2.nabble.com/K3USBtp1566222p1566222.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[K3] [Elecraft] K3USB? Solved thanks to all
Aha! Many thanks for the pic Patrick, I have a feeling I've seen that somewhere recently, but passed it over as not what I was looking for. Now I know, great! My excuse is I've recently moved house so the shack is being rebuilt from the chaos of moving. Also thanks to others who responded. Interesting the comments about introducing noise into the K3 via USB, I'll certainly look out for that. If I find that it does I'll go back to the standard serial port which has been absolutely fine. Thanks again all. 73, Deni F5VJC -- View this message in context: http://n2.nabble.com/K3USB--Solved-thanks-to-all-tp1566590p1566590.html Sent from the [K3] mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Speaker cabinet resonances
Has anyone found a solution to the cabinet buzz from the K3 internal speaker? I've not used the internal speaker until recently on my K3 and now find I have annoying cabinet buzz around 450Hz and 600Hz, not so good for CW! I haven't tried any damping as yet and just wondered if anyone has managed to cure this cabinet resonance. 73,Deni F5VJC K3 325 -- View this message in context: http://n2.nabble.com/K3-Speaker-cabinet-resonances-tp1306081p1306081.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Speaker cabinet resonances
Thanks to all who responded to this question. Having looked into it further it seems I have a combination of cabinet buzz and a defective speaker. I removed the top panel of my K3 did tests and found the most bothersome buzz at 600/610 Hz is still present with the top panel detached. Checked screws all tight (not too tight) and various other mechanical tweaks but can't clear it. So I guess I will email Elecraft support about a possible replacement speaker. This is a very small annoyance in an otherwise fine radio, and it's just come to light now because I always used external speakers or headphones until now, having reduced my K3 to bare bones due to an impending move of shack, I'm listening to it's internal speaker. 73, Deni F5VJC K3 325 Deni F5VJC wrote: Has anyone found a solution to the cabinet buzz from the K3 internal speaker? I've not used the internal speaker until recently on my K3 and now find I have annoying cabinet buzz around 450Hz and 600Hz, not so good for CW! I haven't tried any damping as yet and just wondered if anyone has managed to cure this cabinet resonance. 73,Deni F5VJC K3 325 -- View this message in context: http://n2.nabble.com/K3-Speaker-cabinet-resonances-tp1306081p1307647.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re[Elecraft] ading/Posting to Elecraft list?
This is getting way too complicated. I have been reading and posting to the Elecraft reflector, list or whatever you call it now since 2000 when I discovered Elecraft and built my K2. Right now with my K3 I'm getting increasingly confused as to the best/easiest way to view and post messages to the list/forum or whatever it's called now, and as you can see I'm posting from Nabble, the only method that seems to work for me. Would someone informed please advise the best/easiest way to view and post to Elecraft? I'd rather be playing K3 radio than messing with this stuff... 73, Deni F5VJC -- View this message in context: http://n2.nabble.com/Reading-Posting-to-Elecraft-list--tp837513p837513.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Sub Rx Success!
Just completed the installation of the Sub Rx in K3 325! Very pleased to say all went well and it's working just fine. Need to learn how to drive it now. I'm very relieved to say the least that no problems were encountered and the Config and DSP 2 update went without a hitch. It took me about five hours, taking things carefully. I was actually rather dreading messing with my Working FB K3 to install the sub Rx but so glad now it's done and appears to be working in a rather spectacular fashion! Bon courage 73, Deni F5VJC -- View this message in context: http://n2.nabble.com/Sub-Rx-Success%21-tp781970p781970.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Sub Rx Success!
Just completed the installation of the Sub Rx in K3 325! Very pleased to say all went well and it's working just fine. Need to learn how to drive it now. I'm very relieved to say the least that no problems were encountered and the Config and DSP 2 update went without a hitch. It took me about five hours, taking things carefully. I was actually rather dreading messing with my Working FB K3 to install the sub Rx but so glad now it's done and appears to be working in a rather spectacular fashion! Bon courage 73, Deni F5VJC -- View this message in context: http://n2.nabble.com/K3-Sub-Rx-Success%21-tp782314p782314.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] ON4UN has a K3?
Beautifully put Dave. I agree! 73, Deni F5VJC DaveL G3TJP wrote: I don't wish for a change in the knob's function because, given time and practice, my instinct should learn to go in the other direction, and that will be fine by me. Indeed, I'm content to learn how to with this beautiful radio; I had to learn how to with every previous rig I've owned and so it shall be with the K3. 73 all. Dave G3TJP K2/100 #5551 K3/100 #1122 ___ 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 -- View this message in context: http://n2.nabble.com/ON4UN-has-a-K3--tp586961p587273.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Soldering Stations??
I'm hoping to get a Hakko 936 (or it's clone) very soon and wondering what would be the best tip to order for SMT work? I'll be building the SoftRock Lite kit for use with my K3 so have decided it's time to upgrade the soldering tools. I've managed a small SMT project for my K2 using my old and trusty Weller but now want something better. I know quite a few in this group use the Hakko so I would appreciate some advice on iron tip sizes for SMT as well as the normal sizes. 73, Deni F5VJC ___ 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] Test
- . ... - ___ 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 for me...
Hi Julian, well said! My views exactly as another in EU with an early K2. Good to have it affirmed by you. I too have been hoping and waiting for just this radio... it's a must have, and my order is in too! 73, Deni F5VJC / GM3SKN K21188 I'm totally gobsmacked by the K3. I never imagined that the K3 people have fantasized over for years on this reflector would actually become a reality, in kit form too, at such a reasonable price. The moment I saw this, as when I first read about the K2 back in 1999, I knew this was one radio I just had to have. From this side of the Atlantic, at $2 / £1 exchange rate, it looks very good value indeed. I'm hoping that the modular kit will qualify for import duty exemtion as well. I have decided to get my order in before one of the UK dealers asks for exclusive UK distribution rights and we all end up having to pay twice the price. Julian, G4ILO (K2 #392) ___ 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] KNB2 - Electric fence QRN
Allan Duncan wrote: I see that on the LA3ZA modification pages there are some capacitor changes that change the time constants in the KNB2. Unfortunately the links to the mods themselves seem to be broken. My questions to the list are, will changing C11 and C12 (value unknown) likely to help with the electric fence QRN and, if so, will this compromise the KNB2 with other types of noise? Has anyone else performed some other modification which may help with this type of QRN? Any help would be much appreciated. 73 Allan GM4ZUK K2 S.No. 4946 Yes Allan the mod does help in this respect, I found when I moved to a nice quiet location in France, I was also plagued by QRM from a local, badly installed and maintained electric fence. However my modified noise blanker certainly helps, but doesn't completely cure my problem, it seems to vary from day to day and with wet weather of course. The mod certainly makes a difference to this type of qrm and is worth doing. 73, Deni F5VJC K21188 ___ 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] Static rain ?
Very interesting Geoff, thanks for the comments. I've deliberately not installed those front end diodes in my K2. As to the rain static, we've had very severe rainstorms in France as I believe you too have experienced in the UK and this problem with rain static I have never heard so bad, however this is a relatively new antenna installation for me. The vertical element is constructed from a 42' length of coax using the braid as the radiator to provide a fat wire, this radiator is suspended inside a Spiderbeam fiberglass pole so is in no way in direct contact with the rain. I used to use a butternut vertical (exposed aluminium vertical radiator) and didn't notice rain static quite like this. Yes my feeling is the resistor bleed would be better than the choke for the reasons you mention, still, I've just been out and measured the resistance from the antenna to ground and of course it reads zero Ohms, through the ATU I imagine so I don't quite see why I need a further static bleed path, but I'll try it anyway. Good to hear your K2 is a survivor, I've not had that horror, something I dread, however at the base of my antenna is a spark gap arrestor and then the auto ATU so...fingers crossed. 73, Deni F5VJC Geoffrey Mackenzie-Kennedy wrote: Deni, My suggestion is that you use a resistor and not a choke. A choke at some frequencies will become a series resonant L-C 'tuned' circuit, and it is quite possible that the choke will resonate in or close to one of the bands that you use. If that is the case you will loose transmitter power heating up the choke, likewise the strength of received signals reaching the receiver can be reduced. For static bleeds I usually use 100k 2w carbon resistors, the old fashioned type not carbon film, because the resistors *must* be non-inductive types. My K2 survived a lightning strike to my 40m beam, but I think that the combination of a coax spark gap out in the garden and an underground coax feeder with 'surge loops' took out much of the sting. Back to back diodes for protection against overload can create all sorts of intermodulation problems if the diodes start to conduct, and for those of us in Europe who share 40m with BC stations and using receivers which cannot cope, overload is a problem but there are solutions. Please contact me off list if you are interested. 73, Geoff GM4ESD - Original Message - From: Deni [EMAIL PROTECTED] To: Elecraft@mailman.qth.net Sent: Saturday, December 09, 2006 9:52 AM Subject: [Elecraft] Static rain ? I have recently been plagued by rain static on a new vertical antenna, this is a 42 foot vertical fed at the base through an SG230 auto tuner, and used on all bands. It seems I need a static bleed of some sort, a choke or resistor. What is the best component to use in an outdoor environment? My junk box RF chokes look rather puny for this application, the typical small 2.5mH RF choke. Would a physically large, say 1 Meg resistor be more suitable ? I thought the auto ATU would in itself provide a static bleed path, but apparently not. Is the K2 prone to front end damage due to this static charge? I do not have the back to back diodes fitted (to prevent huge signal overload) Any thoughts, how have you solved this? 73, Deni F5VJC ___ 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 Toroids Latest?
Hi Vic and all. I have kept my K2 (1188) up to date with all the A/B mods, however at times I see references such as the one below about T7 where a toroid may have been changed from the original windings to a revised spec. Are these documented anywhere, which toroids are now different and why? Thanks, 73, Deni F5VJC / GM3SKN K21188 = It looks fine, although I would move the two wider filters a bit to the right. There looks like about 6-8 db difference in attenuation between the widest and narrowest filters, which is probably on the high side of normal (although this tends to vary). I see about 4 db on mine, which is #709 but has had the crystals replaced and T7 rewound to current spec. I would be interested in knowing how much difference in attenuation others are seeing. I know that K1JD has an ANCIENT K2 (field test vintage) which has zero db difference! -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ 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] ZUT
Many thanks to the guys who made this available for download. I watched it several times yesterday and really enjoyed it. Those CW guys were great and pleased to say I could actually copy the code between the local QRM, real cool Ops, but I could never have done that live under those conditions. Nice to see the Bencher and the time taken to adjust it's position on the desk before beginning to send! Great stuff... 73 Deni F5VJC / GM3SKN ___ 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] Bad fist
Here is the colorful (perhaps more myth than fact) version. === Thanks Steve, certainly colourful, and the best I've heard yet, I would like to think it was true! 73, Deni F5VJC / GM3SKN K2 1188 Make RF make QSO/s (Another gem from this list) Bad fist thread... ___ 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
