[Elecraft] k1 battery option and mods
Hi all Just acuired a secondhand K1 and I'm thinking about adding the battery option and hope to get some coments on the usability of this option If anyone has made a drawing of the metal plate that goes inside, I would like to receive a copy. I'm going to make some mock-up before ordering the option. I'm also thinking about making one or two other mods. Especially the added caps for broader tuning range on 40m. and maybe backlight. But other sugestions on mods for the K1 are more than welcome. 73- Henning OZ4XF ___ 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] Tan vs Gray K3 Knobs?
It seemed from the start, the K3 had tan-ish principle push buttons. Recent photos of the K3 - seem to indicate in some of the versions (prototype, modelshop, early RD) these buttons are straight GRAY? Which are they? I got to believe they would be TAN, blending along with the color scheme of the display? Fred de N3CSY Park yourself in front of a world of choices in alternative vehicles. Visit the Yahoo! Auto Green Center. http://autos.yahoo.com/green_center/ ___ 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] k1 battery option and mods
Henning: I would not install the internal battery option. It requires that you install a smaller speaker and there is always the danger of the batteries leaking and damaging the board in the K1. It is very easy to make up a small battery pack and a short cable to connect it to the radio. Additionally you have to remove the batteries to charge them if you use ni-cads. I use a small 12volt 2.2 amp gel cell which will operate the K1 for most of a weekend. One other thing is that the option provides for only eight AA cells and they will only produce 12.0Volts at maximum voltage when using standard AA, only 10.8 Volts when using nic-cads, and the Gel Cell will provide about 13.8 Volts at maximum. The output power of the K1 is directly proportional to the input voltage supply. I installed the internal battery in my K2 and later removed it because of the danger of the leaking battery and the fact that it made the K2 much heavier. I would not install the extended coverage in the VFO because the tuning becomes very touchy. One rotation of the knob causes a much greater change in frequency. In the 80KHz setting you have about 8KHz per revolution of the tuning knob and in the 180KHz setting it is 18KHz per revolution. I love the backlight option and highly recommend it to you. It is very easy to install and makes the K1 much nicer when operating at night. Please understand these are my personal observations and preferences. You may have other reasons for making the changes. Jim Younce K4ZM K2 SN:18 K2 Field Tester ___ 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 receiver experience
After this weekend's hamfest I was reading my new ARRL 2007 handbook to see what might be NEW in ARRL testing of receivers, I came across this sentence that I thought pretty well summed up my experience with my K2 receiver. On page 10.7 3rd column When using a good receiver with a linear front end and a clean LO, amateurs accustomed to receivers with poor phase-noise performance report the impression of a seemingly emptier band with gaps between signals -- and then they begin to find readable signals in some of the gaps. This whole section in the handbook reveals the science behind the efforts engineers put into receiver design and why phase noise is so important for both the receive and transmit performance. Dick WB7OND hanging around for shipment 2 ___ 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] My K2 is a Low Rider!
On 9/3/07, k4zm [EMAIL PROTECTED] wrote: It sounds like you have the bottom plate mounted 180 degrees out or have not installed the bail assy. The bottom should be installed so that the bail assy is located near the front of the K2. Also if mounted 180 degrees out I don't think you can install the two screws in the middle of the bottom cover. These are important in making the PLL a stable unit. Nope, everything is installed correctly. Bail was a pain to install but I finally got it installed just fine. It isn't off by much but noticeable when sitting flat on the desk. It's probably a 1/16th or 1/32nd shorter in the front but I haven't measured yet so maybe my eyes are playing a trick on me. -- JT Croteau, N1ESE - Manchester, NH ___ 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 NB
Brett, OTHR is a big problem in NA, at least on the west coast. On 40M in the early AM it can prevent operation over the entire CW segment using my current equipment (no noise blanker). This is a primary focus of my wanting NB capability. I have yet to hear a report of any tester on the efficacy of the K3 NB on OTHR. Perhaps this is because the NB is late-arrival functionality and the summer QRN has just about shut the band down here during the early dark hours. For example this morning; I can't hear one CW signal through the noise at 5:00am local. During winter up through late July this was prime DX time except when the OTHR was present. When it was I just turn the radio off. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) QRP-ARCI #12326/ KX1 #1311/ Swan 350C Date: Mon, 03 Sep 2007 00:58:34 + To: elecraft@mailman.qth.net From: VR2BrettGraham [EMAIL PROTECTED] Subject: Re: [Elecraft] K3 NB K6DGW replied to N6RY's apparently somewhat-not-serious response: How about some simple countermeasures (for a future firmware release): Blank, then transmit an equal length pulse (on a clear frequency, of course), with optional automatic ID every N minutes. If it's anything like the Russian woodpecker, it likely transmits a string of bits using a psuedo-random code in each pulse', and the radar RX can separate it's own echoes from fake ones. One suggestion we had from RAAF's 1RSU (VK air force's unit that runs their OTHR systems) early on was that the Hainan woodpecker might be a comms system. A constant pulse train on HF would be hard to use to convey any data with either amplitude or phase. And no one has yet to see anything but the pulses that make the woodpecker sound. The reason why we could force the Russian woodpecker to move back in the late 70s/early 80s was because they apparently could not differentiate between echoes from their pulses anything else that looked like them. Since then, technology has come a long way it is easy to imagine the computing horsepower DSP now available would make most active countermeasures useless. And in practice, that seems to be the case. I get the impression here that OTHR isn't a problem in NA. You lot are very lucky then. In ITU Regions 1 3, it is a _big_ problem. 73, VR10BrettGraham/p. ___ 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] My K2 is a Low Rider!
JT: To give you another data point, I just measured my K2 (#5413) and it is slightly *higher* in the front. With the bail not extended and measuring from the bottom of the side panels to the tabletop at the front and rear. Front Clearance ~15/32 in Rear Clearance ~27/64 in Both +/- eyeball error. Both sides were about the same. 73, Ken K3IU ~~~ JT Croteau wrote: On 9/3/07, k4zm [EMAIL PROTECTED] wrote: It sounds like you have the bottom plate mounted 180 degrees out or have not installed the bail assy. The bottom should be installed so that the bail assy is located near the front of the K2. Also if mounted 180 degrees out I don't think you can install the two screws in the middle of the bottom cover. These are important in making the PLL a stable unit. Nope, everything is installed correctly. Bail was a pain to install but I finally got it installed just fine. It isn't off by much but noticeable when sitting flat on the desk. It's probably a 1/16th or 1/32nd shorter in the front but I haven't measured yet so maybe my eyes are playing a trick on me. ___ 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 First Impressions from a Field Tester
The K3 certainly sounds like an interesting rig. One thing I would like to see is some pictures of the internals of the K3. Pictures of the modules and how they are located in the K3 would be nice, along with pictures showing how cramped (or open) is the inside of the K3. www.N4LCD.com/k3 ___ 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] My K2 is a Low Rider!
JT, Measure your rear feet. Perhaps you have the wrong ones - but I do not know of other Elecraft products that use different size feet (although the K3 may have higher feet). I just measured 3 K2s with my shop dial caliper. My old SN 20 front feet measure 0.430 inches and the rear feet are 0.410 (maybe from slight compression over the years). SN 586x has 0.430 front feet and the rear feet measure 0.427 inches and SN 619x has 0.430 front feet and the rear feet are 0.425 inches. So all will have a very slight back tilt. I can think of only 2 possibilities - one is that you mounted the lockwashers between the feet and the rear panel (they should be next to the nuts on the inside), or two is that somehow your rear feet are incorrect due to some mixup in parts. 73, Don W3FPR Nope, everything is installed correctly. Bail was a pain to install but I finally got it installed just fine. It isn't off by much but noticeable when sitting flat on the desk. It's probably a 1/16th or 1/32nd shorter in the front but I haven't measured yet so maybe my eyes are playing a trick on me. ___ 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 First Impressions from a Field Tester
[EMAIL PROTECTED] wrote: The K3 certainly sounds like an interesting rig. One thing I would like to see is some pictures of the internals of the K3. [snip] www.N4LCD.com/k3 Thanks, Paul. Is that pretty much a basic K3? I see Elecraft has done their usual nice job of having things connect together with almost no internal wires needed compared to the amount of internal wiring harnesses seen in other commercial rigs. -- Cheers! Kevin. http://www.ve3syb.ca/ |What are we going to do today, Borg? Owner of Elecraft K2 #2172 |Same thing we always do, Pinkutus: | Try to assimilate the world! #include disclaimer/favourite | -Pinkutus the Borg ___ 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] k1 battery option and mods
Henning: I have K1 #1423, my only HF rig at this time, 4 bands. I have always used an external battery, a bit more bulk but I did not have to disturb the insides of the K1, or worry about battery leaks. I first built the K1 using 150KHz range for the tuning. Tuning was much too difficult to use. Since then I have adjusted the tuning range several times, now it is back to about 80 KHz. I miss having a larger tuning range and I want more bands, a K2 or K3 will fix that. Hilsen fra USA. 73, Ty, W1TF ex OX5BT --- Henning V. Mikkelsen [EMAIL PROTECTED] wrote: Hi all Just acuired a secondhand K1 and I'm thinking about adding the battery option and hope to get some coments on the usability of this option If anyone has made a drawing of the metal plate that goes inside, I would like to receive a copy. I'm going to make some mock-up before ordering the option. I'm also thinking about making one or two other mods. Especially the added caps for broader tuning range on 40m. and maybe backlight. But other sugestions on mods for the K1 are more than welcome. 73- Henning OZ4XF Need a vacation? Get great deals to amazing places on Yahoo! Travel. http://travel.yahoo.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 First Impressions from a Field Tester
Greg wrote: Kevin. The first time you like inside a bare K3 you'll probably say to yourself, that's it? :) That is probably the reaction I had when I first saw pictures of the inside of a K2. With all the features listed as being in the K3 I thought it might have been a bit more crowded in there. Just lots of room for add-on options. It probably would have been a bit more crowded in the box if Elecraft hadn't cheated this time around by using surface mount components but if they hadn't dont that, the box would probably have needed to be bigger. :-) -- Cheers! Kevin. http://www.ve3syb.ca/ |What are we going to do today, Borg? Owner of Elecraft K2 #2172 |Same thing we always do, Pinkutus: | Try to assimilate the world! #include disclaimer/favourite | -Pinkutus the Borg ___ 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] OT: Hotel antenna
OT I know, but it does relate to my K2 ;-) Wondering if anyone on the list might have a recommendation for a simple QRP antenna for use in a hotel? My wife is attending a conference in Chicago in a couple of weeks and I'm going with. When she booked the hotel, I just asked that we get a room as high as possible. I'm not sure what we got yet. I'm taking my K2 (I bought a nice Pelican case for it a few months ago) and a few spools of small enameled wire. I was thinking of just using a 65' end fed with a 1/4 wavelength counterpoise for 40m operation. I've also done some reading on the W3EDP antenna. Anyone have some decent experiences out there? Or, bad ones that I should stay away from? Dave W8FGU K2 #5099 ___ 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] Of topic - For sale items
Minor shack (and workbench) cleaning: UTC S-19 modulation transformer - $15 + shipping KD1JV MS-DDS-60 VFO controller for the NJQRP DDS-60 - $25 + shipping (DDS-60 not included) TenTec 1208 6m/20m transverter - Receiver works, but I cannot get any transmit power out - $35 + shipping (I ship UPS as I have a daily pickup - zip 11779). Please email me off list (wb2art at arrl dot net) if you have any questions. 73 Ken WB2ART ___ 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] k1 battery option and mods
I wholeheartedly endorse the comments by Jim, K4ZM. The back light is really nice. I use a pack of 10 x AA sized 2700 mAH NiMh cells in a battery holder inside a plastic project box. The battery pack has a solid state self resetting fuse and short cable to the K1. It is charged with a small home made variable voltage/current bench power supply. 73 Dave, G4AON K1 #1154, K2 #1892, K3 (fingers crossed) #200 ___ 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] Off topic - For sale items
The MS-DDS-60 and Tentec 1208 have been spoken for. Still have the UTC S-19 modulation xformer. I'll post smoe more goodies as I finish cleaning! Please email me off list (wb2art at arrl dot net) if you have any questions. 73 Ken WB2ART ___ 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] OT: Hotel antenna
Dave One thing you will need is a way to hold the wire away from the side of the building. A telescoping fishing pole would be the easiest to take along and draw no comments. You can stick it out a window and let the thin wire hang down in the clear. Good luck and 73 Bob N6WG - Original Message - From: Dave Van Wallaghen [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, September 03, 2007 10:58 AM Subject: [Elecraft] OT: Hotel antenna OT I know, but it does relate to my K2 ;-) Wondering if anyone on the list might have a recommendation for a simple QRP antenna for use in a hotel? My wife is attending a conference in Chicago in a couple of weeks and I'm going with. When she booked the hotel, I just asked that we get a room as high as possible. I'm not sure what we got yet. I'm taking my K2 (I bought a nice Pelican case for it a few months ago) and a few spools of small enameled wire. I was thinking of just using a 65' end fed with a 1/4 wavelength counterpoise for 40m operation. I've also done some reading on the W3EDP antenna. Anyone have some decent experiences out there? Or, bad ones that I should stay away from? Dave W8FGU K2 #5099 ___ 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 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] OT: Hotel antenna
Unless your hotel is considerably dated, you won't be able to even open a window, let along get an antenna out. There is so much wiring, piping, metal, conduit, and internal noise in a hotel, especially a high-rise, that you're not going to hear anything anyway. I've tied many times over the years and consider it a bust. K9ZTV Dave Van Wallaghen wrote: OT I know, but it does relate to my K2 ;-) Wondering if anyone on the list might have a recommendation for a simple QRP antenna for use in a hotel? My wife is attending a conference in Chicago in a couple of weeks and I'm going with. When she booked the hotel, I just asked that we get a room as high as possible. I'm not sure what we got yet. I'm taking my K2 (I bought a nice Pelican case for it a few months ago) and a few spools of small enameled wire. I was thinking of just using a 65' end fed with a 1/4 wavelength counterpoise for 40m operation. I've also done some reading on the W3EDP antenna. Anyone have some decent experiences out there? Or, bad ones that I should stay away from? Dave W8FGU K2 #5099 ___ 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] OT: Hotel antenna
Maybe a room on the south side. The biferglass crappie pole is a good idea. de Joe, aa4nn My wife is attending a conference in Chicago in a couple of weeks and I'm going with. When she booked the hotel, I just asked that we get a room as high as possible. I'm not sure what we got yet. ___ 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 with internal battery?
Hello all, As I creep towards my K2 definition... - Low wattage is fine - SSB option (yeah I know I probably want 100 watts with this, but I still want it) - DSP Board maybe ...and since one person spoke about the coolness of taking one and only one box to the picnic table along with a simple wire... - Internal antenna tuner - Internal battery option ...are must have options. However, reading today's threads about leaking batteries renews my concerns about batteries in general. So is there a consensus that internal batteries, while functionally terrific, are just trouble waiting to happen? Thanks, as usual, for your inputs. John ___ 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] Tan vs Gray K3 Knobs?
Two shades of gray on the K3s I've seen, Fred. One is a very light gray and the other a dark charcoal gray. The light gray, like most neutral light colors, is very sensitive to the color of the light you see (or photograph) it in, taking on various hues according to the light source. Still, in real life, it's obviously light gray. Ron AC7AC -Original Message- It seemed from the start, the K3 had tan-ish principle push buttons. Recent photos of the K3 - seem to indicate in some of the versions (prototype, modelshop, early RD) these buttons are straight GRAY? Which are they? I got to believe they would be TAN, blending along with the color scheme of the display? Fred de N3CSY ___ 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] Pomona Adapter Query
I have the recommended Pomona BNC-to-dual binding post adapter for use with my KX1. It looks like some kind of wire termination might fit into the ends of the binding posts. Has anybody got a recommendation for what kind of wire termination would fit snugly into those openings? Banana plugs are too large. It would be nice to have a plug-in option, in addition to crimping bare wires. -Scott N3SW -New Cumberland PA ___ 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] K2 with internal battery?
John I have a K2 with the internal battery option. There are a few of points to consider: 1. The basic original K2 draws about half the current of a K2 with the DSP and SSB modules fitted (mine is drawing 360 mA at the moment). While you can configure the K2 to draw less current, you are losing some of the nicer features and performance. 2. A K2 with the internal battery is heavy. The power to weight ratio of a lead acid gel cell isn't very good, a handful of NiMh AA cells have a higher mA hour rating. 3. A lead acid battery will suffer loss of capacity if deeply discharged, so don't expect to fully utilise the charge in the internal battery very often! I'm on my second battery in 6 years, but not sure I will fit another. I've not had any leakage but tend not to use the K2 on it's internal batteries. 73 Dave, G4AON = John wrote: So is there a consensus that internal batteries, while functionally terrific, are just trouble waiting to happen? ___ 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] K2 with internal battery?
John, My experience with Sealed Lead Acid batteries has been quite good. My K2 has had the internal battery installed for about 6 years now with no problems noticed, nor have I had leakage problems with any of the SLA batteries that I have had over the years. The discussion started out based on a K1 question, and the battery holder for the K1 is for AA cells. I have had leakage problems with some of the AA cells in the past, usually the Alkaline type have more of a chance for leakage than others, but I have had NiCads leak too - but not very often. 73, Don W3FPR John Huggins wrote: Hello all, As I creep towards my K2 definition... - Low wattage is fine - SSB option (yeah I know I probably want 100 watts with this, but I still want it) - DSP Board maybe ...and since one person spoke about the coolness of taking one and only one box to the picnic table along with a simple wire... - Internal antenna tuner - Internal battery option ...are must have options. However, reading today's threads about leaking batteries renews my concerns about batteries in general. So is there a consensus that internal batteries, while functionally terrific, are just trouble waiting to happen? Thanks, as usual, for your inputs. John ___ 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 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] K2 with internal battery?
John Huggins wrote: - Internal antenna tuner If you're going to use a simple wire, KAT2 is your only good option, and it's a really good one too. - Internal battery option I've had a LI Poly RC Model battery burst into flame while powering my KX1 [fortunately outside both the house and radio], and I've had AA alkalines leak inside my KX1 [fortunately, only one, and it was cleanable]. I use an 12 Ah external sealed gel cell with my K2 that I float on a 13.6V regulated supply when I'm not using it. It's good for a weekend+ of fairly steady operation. I use a fairly light 3 Ah gel cell with my KX1, it's good for more than a weekend of casual ops. I don't put batteries inside my radios, although I know lots of folks do and never have problems. After watching the pyrotechnic display on my gravel driveway from the LiPoly, I've been considering keeping the LiIon battery from my laptop in a coffee can outside until I need it :-) YMMV 73, Fred K6DGW - Northern California Contest Club - CU in the 2007 CQP Oct 6-7 - www.cqp.org ___ 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] K2 with internal battery?
...and since one person spoke about the coolness of taking one and only one box to the picnic table along with a simple wire... Hey John, The tuner and battery is a super combo! I use mine all the time. I also use an AA Smart Charger, and have a jack on the back of the K2 for charging the battery; the setup works well. However, reading today's threads about leaking batteries renews my concerns about batteries in general. I'd certainly be disappointed if that ever happened. Maybe if you stick with the battery that Elecraft sells, it won't happen. Good luck deciding... 73, Paul -ve1dy- ___ 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 with internal battery?
I do not think that the Sealed Lead Acid battery used in the K2 will be a problem. The battery manufacturers specifications show that these are pretty rugged unless the terminals are shorted without any outside circuit protection or severly overcharged. 73, Bob Johansen WB2SRF K2 S/N 5622 with internal battery KBT2 and all other options for stand alone QRP Separate KPA100 and KAT100 in EC-2 enclosure for base operation ___ 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] K2 with internal battery?
I've likewise chosen external power for my K2. The ongoing tests by the RC airplane folks of the Dewalt Lithium Iron Phosphate batteries may finally cause me to put some batteries in my K2. Google A123 for more info. 73 jim ab3cv ___ 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] Pomona Adapter Query
Scott, The intended male plug to go into the Pomona adapter binding posts is a standard banana plug. They come in both straght and right-angle versions and in many colors. If you want to use a plug to go into the holes under the binding posts a standard tip plug is the item. Both types of plugs are found on the meter ends of VOM test leads, depending the brand of meter. I think they can be found at Radio Scrap 73! Ken Kopp - K0PP [EMAIL PROTECTED] or [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
Re: [Elecraft] OT: Hotel antenna
On Sep 3, 2007, at 10:58 AM, Dave Van Wallaghen wrote: OT I know, but it does relate to my K2 ;-) Wondering if anyone on the list might have a recommendation for a simple QRP antenna for use in a hotel? My wife is attending a conference in Chicago in a couple of weeks and I'm going with. When she booked the hotel, I just asked that we get a room as high as possible. I'm not sure what we got yet. I'm taking my K2 (I bought a nice Pelican case for it a few months ago) and a few spools of small enameled wire. I was thinking of just using a 65' end fed with a 1/4 wavelength counterpoise for 40m operation. I've also done some reading on the W3EDP antenna. Anyone have some decent experiences out there? Or, bad ones that I should stay away from? I used a Superantennas MP2 (which Elecraft used to sell) with my K2 from a 7th floor hotel room (6th floor as the Europeans count) in northeast France (Tourcoing) in 2004. I was able to make contacts on 20m all over Europe and also worked Tunisia and UAE (WPX contest weekend). I located the antenna inside the room next to the window and used a 1/4 wave counterpoise laying on the floor. Bob, N7XY ___ 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] K2 with internal battery?
There is a good article in the latest IEEE Spectrum on A123. They are experimenting with a great number of Lithium Ion chemistries. Iron Phosphate is just one of them but looks like it may be very stable. Search here: www.spectrum.ieee.org/sep07/inthisissue Kevin. KD5ONS On Mon, 03 Sep 2007 15:05:32 -0700, Jim Miller [EMAIL PROTECTED] wrote: I've likewise chosen external power for my K2. The ongoing tests by the RC airplane folks of the Dewalt Lithium Iron Phosphate batteries may finally cause me to put some batteries in my K2. Google A123 for more info. 73 jim ab3cv ___ 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] K2 with internal battery?
Better link to Spectrum article on A123: http://www.spectrum.ieee.org/sep07/5490 Kevin. KD5ONS On Mon, 03 Sep 2007 15:05:32 -0700, Jim Miller [EMAIL PROTECTED] wrote: I've likewise chosen external power for my K2. The ongoing tests by the RC airplane folks of the Dewalt Lithium Iron Phosphate batteries may finally cause me to put some batteries in my K2. Google A123 for more info. 73 jim ab3cv ___ 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] Pomona Adapter Query
Ken: Thanks. What I already have must not be standard banana plugs, because they won't fit. Guess I'm going on a shopping trip... 73. -sw- - Original Message - From: Ken Kopp [EMAIL PROTECTED] To: Scott Walker [EMAIL PROTECTED]; elecraft reflector elecraft@mailman.qth.net Sent: Monday, September 03, 2007 6:10 PM Subject: Re: [Elecraft] Pomona Adapter Query Scott, The intended male plug to go into the Pomona adapter binding posts is a standard banana plug. They come in both straght and right-angle versions and in many colors. If you want to use a plug to go into the holes under the binding posts a standard tip plug is the item. Both types of plugs are found on the meter ends of VOM test leads, depending the brand of meter. I think they can be found at Radio Scrap 73! Ken Kopp - K0PP [EMAIL PROTECTED] or [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] Battery Technologies
Thanks for the information. At my job we deal with these lightweight chemistries in batteries for Unpiloted Aerial Vehicles. You can guess the requirements: provide unlimited Whours/kg, tolerate -40 to +80C temps, exhibit lift, etc. We have been watching very closely the progress in the Lithium Battery world and I am happy to report progress on this technology is quite fantastic. Safety has received important attention too. So not only has progress occurred in the laboratory of the RC World (you know... the, run them at 30C and see what happens crowd), but manufacturers are doing a bang up job of extending temperature range, energy density and a bit less tendency to start a good ol' Lithium fire. We have never had one catch fire yet, but then again we don't run our batteries at extreme currents. We often have some of the Lithium Ion Polymer packs suddenly decide to expand their casing like a balloon. We have never seen the package burst though. My technician did a little research and found that slowly, very slowly, recharging the pack tends to shrink them back down back to normal. We don't fly these packs again of course, but so far they seem to act normal. We finally got tired waiting for one of these things to self ignite so we took one we pulled from service, but a charge on it and then tapped a nail through it. We witnessed some small jet like flames, but nothing like the way cool over charge tests the RC folks have done with inferno results. Being light in weight makes them attractive options for the backpacker crowd. I am almost ready to consider carrying these things on my body, but not quite yet. I want a little more safety first. Is there a ham web site somewhere that is collecting information on these latest batteries for use in the ham way? If not, perhaps I will add that thread to mine. John Kevin Rock wrote: Better link to Spectrum article on A123: http://www.spectrum.ieee.org/sep07/5490 Kevin. KD5ONS On Mon, 03 Sep 2007 15:05:32 -0700, Jim Miller [EMAIL PROTECTED] wrote: I've likewise chosen external power for my K2. The ongoing tests by the RC airplane folks of the Dewalt Lithium Iron Phosphate batteries may finally cause me to put some batteries in my K2. Google A123 for more info. 73 jim ab3cv ___ 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 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] K2 with internal battery?
The battery in my cell phone is a lithium ion, and is VERY small, VERY light, and rated for VERY high amp hours. They have a much longer lifetime, lots more charge/discharge cycles, and you don't really see a lot of cell phones bursting into flames. I don't think I would try cheap RC type batteries as they likely are peak output short lifespan type batteries. I did have a gel cell (camcorder) radio shack battery in the emtech rig, with a built in trickle charger, and I had the rig for 5 years with no battery problems, and that was a radio shack battery! NiCad's are a total waste of time, the worst batteries ever made, and I wont buy anything that uses NiCad's. I think most batteries are safe if you limit the charge rate. The sony laptop batteries had a short problem, not an actual battery problem I think... Bad wiring inside the battery package. (made in china?) Brett N2DTS ___ 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] Elecraft receiver experience
Being a mostly tube guy, I have not read much about phase noise. Do tube circuits have phase noise? Do discrete components (solid state, transistors) in coil and cap VFO circuits have phase noise? What is the worst source of phase noise? What circuits have little or no phase noise? My ears are shot, but I always thought some of the old analog stuff sounded much cleaner than digital stuff. I was listening to a stronger SSB signal on the K2 not that long ago, and it had strong artifacts up and down the band that caused hard copy on some CW signals. Was that phase noise? Thanks for any info, Brett N2DTS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of DickandSandy Sent: Monday, September 03, 2007 9:20 AM To: Elecraft@mailman.qth.net Subject: [Elecraft] Elecraft receiver experience After this weekend's hamfest I was reading my new ARRL 2007 handbook to see what might be NEW in ARRL testing of receivers, I came across this sentence that I thought pretty well summed up my experience with my K2 receiver. On page 10.7 3rd column When using a good receiver with a linear front end and a clean LO, amateurs accustomed to receivers with poor phase-noise performance report the impression of a seemingly emptier band with gaps between signals -- and then they begin to find readable signals in some of the gaps. This whole section in the handbook reveals the science behind the efforts engineers put into receiver design and why phase noise is so important for both the receive and transmit performance. Dick WB7OND hanging around for shipment 2 ___ 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 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] Pomona Adapter Query
BTW: The Chinese imitations of the Pomona #1296 sometimes have sub standard jack holes in the binding posts! I bought a couple of the cheapies and they work, but they are crappy compared with the real thing. 73, Sandy W5TVW - Original Message - From: Scott Walker [EMAIL PROTECTED] To: Ken Kopp [EMAIL PROTECTED]; elecraft reflector elecraft@mailman.qth.net Sent: Monday, September 03, 2007 6:05 PM Subject: Re: [Elecraft] Pomona Adapter Query Ken: Thanks. What I already have must not be standard banana plugs, because they won't fit. Guess I'm going on a shopping trip... 73. -sw- - Original Message - From: Ken Kopp [EMAIL PROTECTED] To: Scott Walker [EMAIL PROTECTED]; elecraft reflector elecraft@mailman.qth.net Sent: Monday, September 03, 2007 6:10 PM Subject: Re: [Elecraft] Pomona Adapter Query Scott, The intended male plug to go into the Pomona adapter binding posts is a standard banana plug. They come in both straght and right-angle versions and in many colors. If you want to use a plug to go into the holes under the binding posts a standard tip plug is the item. Both types of plugs are found on the meter ends of VOM test leads, depending the brand of meter. I think they can be found at Radio Scrap 73! Ken Kopp - K0PP [EMAIL PROTECTED] or [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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.485 / Virus Database: 269.13.3/986 - Release Date: 9/3/2007 9:31 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] Elecraft receiver experience
Do tube circuits have phase noise? Do discrete components (solid state, transistors) in coil and cap VFO circuits have phase noise? Oscillators have phase noise. Properly designed -- with attention to this -- the phase noise can be managed and made small. Crystal oscillators are usually the cleanest, but they also have it to varying degrees. The worst are oscillators with improper gain using low Q components in the frequency determining section. This is also a description of many voltage controlled oscillators (VCOs) used in frequency synthesizers. Early synthesizers used in Amateur radio products were often truly awful in this regard. The higher in frequency one goes, the harder it is to have low phase noise close to the carrier being generated. Thus, it is generally easier to have a certain amount of phase noise 500 Hz from the carrier at 1 MHz than it is at 1 GHz. This is part of the reason that many radios that feature up conversion (for general coverage) have poorer phase noise than most radios that do not. 73, Lyle KK7P ___ 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] Eleventh Annual Stew Perry Topband Distance Challenge results posted
http://www.kkn.net/~tree/2006_Stew.htm LOTS of QRP entries last year! Elecraft K2 mentioned in SOAPBOX by four separate entries. I'm sure there were more. de Doug KR2Q ___ 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] Eleventh Annual Stew Perry Topband Distance Challenge results posted
On Mon, 3 Sep 2007 20:46:45 -0400, DOUGLAS ZWIEBEL [EMAIL PROTECTED] wrote : http://www.kkn.net/~tree/2006_Stew.htm LOTS of QRP entries last year! Elecraft K2 mentioned in SOAPBOX by four separate entries. I'm sure there were more. K2 here (#2 qrp). Pat N8VW ___ 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] Elecraft receiver experience
Lyle, Thanks for the info. Would I be right in assuming the more conversions, the higher the phase noise, even if crystal oscillators are used? In the homebrew receivers, I used B+W coil stock, which I think has very high Q... Brett N2DTS Oscillators have phase noise. Properly designed -- with attention to this -- the phase noise can be managed and made small. Crystal oscillators are usually the cleanest, but they also have it to varying degrees. The worst are oscillators with improper gain using low Q components in the frequency determining section. This is also a description of many voltage controlled oscillators (VCOs) used in frequency synthesizers. Early synthesizers used in Amateur radio products were often truly awful in this regard. The higher in frequency one goes, the harder it is to have low phase noise close to the carrier being generated. Thus, it is generally easier to have a certain amount of phase noise 500 Hz from the carrier at 1 MHz than it is at 1 GHz. This is part of the reason that many radios that feature up conversion (for general coverage) have poorer phase noise than most radios that do not. 73, Lyle KK7P ___ 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] Low outout power on higher bands, K2
Beth, If the bandpass previously was tuned properly and the behavior is as you stated, check the VCO frequency at TP1. Compare the frequency obtained with the internal counter probe with the chart on the Schematic Key sheet in the manual. If the frequency of the VCO is not correct, you can obtain RF out of the mixer and buffer stages, but when it gets to the bandpass filter, the filter will 'swallow it up'. You can also use the counter probe to check the frequency at other places in the K2 other than the Test Points designated - you may have to invent some kind of short attachment device, but it should work - the counter itself shoud be good up to 40 MHz. 73, Don W3FPR Beth Wenzel wrote: Thanks for the tip Lee, it got me to looking at the TX mixer / buffer part of the chain. The ALC / BFO line into the mixer is consistent across bands, (however the micro controller quickly drives the ALC to max at 28 mhz). The mixer output looks ok, as well as the output on pin 6 of the buffer. However when I measure of the cathode end of D6 the relative output is down, as if the bandpass filter is sinking the energy. ___ 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] Manual documentation does not work for me to see K2 Firmware Revision Numbers
The Owner's Manual (K2) Rev G (May 2007) has documentation for checking firmware revision numbers. My K2 does not respond to them for checking the SSB adapter's firmware revision: Set the SSBA menu entry to BAL, then hold the VOX button. Nothing happens; however, I can see a number (1.08) if I follow the documentation, then tap an adjacent button (such as REV, SPLIT, SPOT, etc), then hold the VOX button as per the instructions. Can anyone verify or duplicate this or tell me what problem my K2 has? Thanks and 73 to all! Jim Isbell KB4U Please be patient if you do not receive an immediate reply. There are reasons (examples follow): Activities away from a computer, Commuting, Technical (Internet connection) problems, Travel Work. I will respond...Thanks. ___ 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] Elecraft receiver experience
In a message dated 9/3/07 9:34:19 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: Would I be right in assuming the more conversions, the higher the phase noise, even if crystal oscillators are used? It's not that simple. A multiconversion rx with quiet oscillators can have less phase noise than a single-conversion rx with a noisy oscillator. In the homebrew receivers, I used B+W coil stock, which I think has very high Q... That's only one component. Good but not perfect. The key is for the entire oscillator *circuit* to be high Q, not just one or two components. 73 de Jim, N2EY ** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour ___ 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] OT: Hotel antenna
Thanks for all the great replies on and off the list. Lots of good suggestions. Now to see if I can get a room with a window that opens :-) Thanks again and 73, Dave W8FGU ___ 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] OT: Hotel antenna
On Mon, 3 Sep 2007 23:25:44 -0400, Dave Van Wallaghen wrote: Now to see if I can get a room with a window that opens :-) You'll have the best luck on this in an old fashioned hotel as opposed to a newer one. 73, Jim K9YC ___ 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] Tan vs Gray K3 Knobs?
Take into consideration the fact that the old version is an actual photo of the rig and the new version is a CAD generated image. The differences were obvious in the Web views of the rig from front and the rear view. So, as Elecraft is doing their best to keep us up-to-date on changes, let's not cause a panic if the production rig still looks like the betas color-wise. The AF/RF switch and some other button changes were indicated several months ago - no surprise. 73 AL, WA6VNN ** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour ___ 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] Pomona Adapter Query
Ken: Thanks. What I already have must not be standard banana plugs, because they won't fit. Guess I'm going on a shopping trip... 73. If I remember correctly, Pomona makes a standard size adaptor and a miniture one. I bought the smaller one and I like the size for portable operations as it fits in a small package better. I don't know if they make a plug to fit, but I would think so. I just double the end of my #24 antenna and ground wire and tin it. Insert thru the small hole and tighten the plastic nut. It seems to last a long time. Also, it is field repairable with a small knife if the wire plug breaks. I just moved into a new house and have been using just such a portable antenna for two months now with no breakage, yet. 73 Rick Dettinger K7MW ___ 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] Manual documentation does not work for me to see K2Firmware Revision Numbers
Hmmm. I can't speculate on the problem Jim, but my K2 behaves per the manual. Simply holding VOX with the MENU set to SSB BAL brings up the SSB module rev (1.08). Perhaps the first place to look is to see if your main microcontroller and I/O controller firmware is current. They should be: 2.04P 1.09 Ron AC7AC -Original Message- The Owner's Manual (K2) Rev G (May 2007) has documentation for checking firmware revision numbers. My K2 does not respond to them for checking the SSB adapter's firmware revision: Set the SSBA menu entry to BAL, then hold the VOX button. Nothing happens; however, I can see a number (1.08) if I follow the documentation, then tap an adjacent button (such as REV, SPLIT, SPOT, etc), then hold the VOX button as per the instructions. Can anyone verify or duplicate this or tell me what problem my K2 has? Thanks and 73 to all! Jim Isbell KB4U ___ 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] K3 XIT RIT
With the XIT and / or RIT on, can you cause the resultant frequency,to be the operating frequency with the press (or press hold) of a button? For example - I'm on 7025.22 and the RIT is up 1.33 kc, so I'm listening on 7025.33 and transmitting on 7026.55. I'd like to press a button (or press hold) and clear the RIT and have the VFO read 7026.55. On the Icom 746 you press the RIT or XIT to turn them on and press them,for 2 sec to add the shift frequecny to the operating frequency. Or can you do that already with the K3? 73HankK8DD -- --- If God intended you to be on single sideband, he would have given you only one nostril. - Steve, K2PTS (SK) --- Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Elecraft_K3/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Elecraft_K3/join (Yahoo! ID required) * To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Elecraft] Low outout power on higher bands, K2
Thanks for the tip Lee, it got me to looking at the TX mixer / buffer part of the chain. The ALC / BFO line into the mixer is consistent across bands, (however the micro controller quickly drives the ALC to max at 28 mhz). The mixer output looks ok, as well as the output on pin 6 of the buffer. However when I measure of the cathode end of D6 the relative output is down, as if the bandpass filter is sinking the energy. Leigh L Klotz, Jr. [EMAIL PROTECTED] wrote: Check the bottom of the RF board for a missing capacitor. You can search for my callsign and low power for a message trail including part numbers. 73, Leigh/WA5ZNU On Sun, 2 Sep 2007 1:35 pm, Beth Wenzel wrote: 13+ watts out. 20m about 12, then a rapid drop off until I get about 1.5 watts on 10 meters. ___ 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
