[Elecraft] A Wee bit OT
Tom, KG3D, I have a Hustler 6BTV antenna, and it does not use the 6 Spoke Spider for 40M, like the 4BTV does. Mine is ground mounted and works great, even with no radials. I use an LDG AT11-MP automatic antenna tuner with it on all bands, 10M - 80M. 72/73, Carl, WN3DUG K2/100 S/N: 3092 KX1 S/N: 271 ___ 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: A Wee bit OT
Tom, KJ3D, I have a Hustler 6BTV antenna, and it does not use the 6 Spoke Spider for 40M, like the 4BTV does. Mine is ground mounted and works great, even with no radials. I use an LDG AT11-MP automatic antenna tuner with it on all bands, 10M - 80M. (Using my K2/100 :-) 72/73, Carl, WN3DUG K2/100 S/N: 3092 KX1 S/N: 271 --- Tom, KJ3D, wrote: Good Morning Group, A question about the Hustler 6BTV (used for my K2 - so not completely off topic). When I replaced my old 4BTV with the 6BTV there was no mention of whether or not to use the 6 spoke spider (yeah, should be insect) that sat beneath the 40 meter section. Anybody doing this? I _could_ just try it, but if someone already has... Thanks, es 72 Tom, KJ3D ___ 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 FS
I'm considering selling my serial #5044 K2/100 with the latest firmware. It is in MINT condition and fully loaded with the following: K2, KPA100, KSB2, K160RX, KNB2, KDSP2, KIO2, with manuals. $1145 shipped. Please reply direct, off list. John N1JM ___ 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] XV144 harmonics
I am having a problem with 5th harmonic radiation from my XV144 transverter. I have found that I am causing TVI to the UK analogue Channel 51 (711.25MHz) and digital Channel 52 (719.25MHz). Other TV channels are free from interference. I would be interested to know whether anyone else has had such problems and would appreciate any suggestions as to how the 5th harmonic can be reduced. Naturally, I could insert an external low pass filter in the transverter output but I am mindful that that would introduce some insertion loss on 2 metres. 73 de David G4DMP ___ 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] New Amplifiers ...
I know that information on the new Elecraft amplifiers is scarce, but does anyone know if the K2 (15W) will be able to provide sufficient drive or will the KPA 100 be required? I'm trying to plan my future purchases ... Thanks Dave, VE6DRW ___ 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: Elecraft Digest, Vol 22, Issue 1
I've also tried using an electronic key as a DOT generator. As another writer has already said it's not a very good solution. The bio-feedback is missing. On the other hand, ten years ago I aquired an extra speed weight from Vibroplex and put it onto the key's arm together with the original one. Works like a charm. The dot speed may be reduced to about 15 WPM with both weights pushed toward the far end - if you want. This brings back fond memories of my carreer as a young W/O in the merchant navy. I persuaded one of the ship's engineers to machine a brass speedweight, about double the size of an original weight which it replaced. This feature reduced the dot speed of my Vibro considerably to match my own dash speed perfectly. When sending messages that MUST be read 100% at the other end readability is very important! Well, the coast station operator at OXZ after receiving ten og fiften messages without having to ask for repetitions (I got just an R and a K after every message) finally asked me if I was using an automatic transmitter! Rick, OZ5RM ___ 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] New Amplifiers ...
Hi I have no information on this but I think there is a specification from the FCC that any external HF band amplifier must require at least 50 watts of drive for full output. This is to keep the CB'ers from using the amps with the 4 watt CB rigs. There was even a lot of discussion about the KPA100 but it was approved because it can only driven with a K2 because of the tightly integrated control structure. It is really considered a part of the K2 not an external amp. I would expect the power amps to require the KPA100 although Elecraft has a way of surprising us in good ways when new products come out. There always seems to be more performance than you expect when final product is announced. Don Brown KD5NDB - Original Message - From: Dave White [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, February 01, 2006 7:59 AM Subject: [Elecraft] New Amplifiers ... I know that information on the new Elecraft amplifiers is scarce, but does anyone know if the K2 (15W) will be able to provide sufficient drive or will the KPA 100 be required? I'm trying to plan my future purchases ... Thanks Dave, VE6DRW ___ 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] Re: Bug Tamer
When I was first licensed, in the '50s, there was a game that some chose to play. Those playing this game were almost always novices. The game was to gradually increase your sending speed until the other op yelled uncle by sending pse qrs. Of course, you started this game at your own risk. I have listened to exchanges where the originator of the game was himself burned, as it was called, by inadvertently picking on someone who was more proficient than he was. I never tried playing the game myself, but was on occasion the victim of it. Even today, new CW ops can often send faster than they can receive. I am elmering a young technician who sends much faster than he can receive. Before anyone gets their shorts in a knot, we are communicating on 6 meters. 72, Jim W4BQP K2 # 2268 ___ 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] New Amplifiers
Will the new Elecraft amplifiers be able to output full power when used with a K2/100 operating in RTTY mode? The K2/100 power output must cut back from 100W to about 20W when operating RTTY and other digital modes to prevent overheating. If the amplifier is able to put out full power with the K2/100 reduced in power for RTTY operation, will the K2/100 and amplifier be able to sustain continued RTTY run mode CQing under contest conditions without overheating? Thanks de KB1IKD ___ 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] QRP-ARCI FIRESIDE SSB CONTEST ANNOUNCEMENT
2006 ARCI Fireside SSB Sprint Date/Time: 2000Z to 2359Z on 5 February 2006 Mode: HF SSB only. Exchange: Members send: RS, State/Province/Country, ARCI member number Non-Members send: RS, State/Province/Country, Power Out QSO Points: Member = 5 points Non-Member, Different Continent = 4 points Non-Member, Same Continent = 2 points Multiplier: SPC (State/Province/Country) total for all bands. The same station may be worked on multiple bands for QSO points and SPC credit. Power Multiplier: 10 Watts = x1 2 - 10 Watts = x7 500mW - 2 Watts = x10 100mW - 500mW = x15 100mW or less = x20 Suggested Frequencies: 80m 3985 kHz 40m 7285 kHz 20m 14285 kHz 15m 21385 kHz 10m 28385 kHz BONUS POINTS: If you are operating PORTABLE using battery power AND a temporary antenna, add 5000 points to your final score. (You can NOT be at your shack operating from battery power using your home station antenna to qualify for this bonus.) This is to help level the playing field for contesters who work from the field against contest stations with 5 element yagis at 70 ft. Score: Final Score = Points (total for all bands) x SPCs (total for all bands) x Power Multiplier + Bonus Points Categories: Entry may be All-Band, Single Band, High Bands (10m-15m-20m) or Low Bands (40m-80m) How to Participate: Get on any of the HF bands except the WARC bands and hang out near the QRP frequencies. Work as many stations calling CQ QRP or CQ TEST as possible, or call CQ QRP or CQ TEST yourself! You can work a station for credit once on each band. Email Log Submission: Submit Logs in plain text format along with a summary stating your Callsign, Entry Category, Actual Power and Station Description along with score calculation to [EMAIL PROTECTED] on or before 5 March 2006. Snail mail Log Submission: Submit Logs along with a summary stating your Callsign, Entry Category, Actual Power and Station Description along with score calculation to: ARCI Fireside Sprint c/o Jeff Hetherington, VA3JFF 139 Elizabeth St. W. Welland, Ontario Canada L3C 4M3 Entries must be postmarked on or before 5 March 2006. Results: Will be published in QRP Quarterly and shown on the QRP-ARCI website. Certificates: Will be awarded to the top scoring entrant in each category. Certificates may be awarded for 2nd and 3rd place if entries are sufficient in a category. = L. Jeffrey Hetherington - VA3JFF QRP-ARCI (sm) Contest Manager QRP-ARCI (sm) #9223 / K2 #3375 / KX1 #631 __ Find your next car at http://autos.yahoo.ca ___ 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] PAR antenna on 80 meters
Greetings, all- Here is a small tidbit of possibly useful information in this period of low sunspot activity, which probably everybody but me knew anyway. The PAR EndFedZ is a popular backpacking or portable semi-QRP (25 watts maximum) multi-band antenna covering 40, 20, and 10 meters. (It will also cover 30, 20, and 10 if the wire stinger is shortened.) Being a half-wave antenna, no radials are needed. I found that if both sides of the coax coming out of the PAR matchbox are tied together and treated like a random wire, the internal tuner in my Icom IC-703 would match it on 80 meters, with a resulting SWR of 1.2. I used about a 34 ft. counterpoise with this setup. I'm looking forward to seeing if the internal tuner in my KX-1 with the forthcoming 80 meter board will also match it. The IC-703 was unable to get a match on the WARC bands or on 15 meters. Sorry. I think a more robust tuner could probably match those bands as well. An experiment for another day. 73, Grif, KF4JG ___ 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] Commercial CW ops (WAS: Bug Tamer)
On 1/31/06, Ron D'Eau Claire [EMAIL PROTECTED] wrote: If a shore operator ran into someone who wanted to QRQ they obliged to the best of their ability. In my experience, ship operators aren't a lot different from Hams. Some were very competent and others less so. The best op I ever worked, as a 19 year old USAAF cw op in a small weather station in Greenland in 46-47, was an ex-Merchant Marine radioman. He worked for American Overseas Airlines, a government contract company who furnished communications and base maintenance people to the Army, and was stationed at BW1, the main base in Greenland at the time. I was sending him some traffic and he broke and gave me a QRQ. I moved the weight, on the Lightning, back about half way and went as fast as I could--he never asked for a fill. I had a couple of 12 wpm hand key ops and he always slowed down to their speed when he worked them without being asked. Bob Baxter AA7EQ Walnut Ridge, Ar. ___ 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] Dayton
Thanks to everyone for their input. Looking at making it for a couple days at least... Cheers, Julius n2wn ___ 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] PAR antenna on 80 meters
Greetings, all- Here is a small tidbit of possibly useful information in this period of low sunspot activity, which probably everybody but me knew anyway. The PAR EndFedZ is a popular backpacking or portable semi-QRP (25 watts maximum) multi-band antenna covering 40, 20, and 10 meters. (It will also cover 30, 20, and 10 if the wire stinger is shortened.) Being a half-wave antenna, no radials are needed. I found that if both sides of the coax coming out of the PAR matchbox are tied together and treated like a random wire, the internal tuner in my Icom IC-703 would match it on 80 meters, with a resulting SWR of 1.2. I used about a 34 ft. counterpoise with this setup. I'm looking forward to seeing if the internal tuner in my KX-1 with the forthcoming 80 meter board will also match it. The IC-703 was unable to get a match on the WARC bands or on 15 meters. Sorry. I think a more robust tuner could probably match those bands as well. An experiment for another day. 73, Grif, KF4JG Sorry, the previous attempt to send this had unacceptable formatting embedded in the text. I don't know how much went through, but some of it got bounced. ___ 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: New Amplifiers ...
Dave White wrote: I know that information on the new Elecraft amplifiers is scarce, but does anyone know if the K2 (15W) will be able to provide sufficient drive or will the KPA 100 be required? Dave, The K2 by itself cannot legally drive an amplifier to full power; the rule states that at least 50 watts of drive must be required. That said, you'd still get hundreds of watts out :) By the way, I replied to you twice on this subject already (when you e-mailed me directly). Looks like there's problem problem at either your server or mine. 73, Wayne N6KR --- 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] PAR antenna on 80 meters
I sometimes do that to use my TH7DX on 30m. The K1 and K2 have no problem loading it on 40m and 80m too, but it doesn't hear or radiate very well. Still it's usable in a pinch. Eric KE6US www.ke6us.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Grif Sent: Wednesday, February 01, 2006 7:41 AM To: elecraft@mailman.qth.net; [EMAIL PROTECTED] Subject: [Elecraft] PAR antenna on 80 meters Greetings, all- Here is a small tidbit of possibly useful information in this period of low sunspot activity, which probably everybody but me knew anyway. The PAR EndFedZ is a popular backpacking or portable semi-QRP (25 watts maximum) multi-band antenna covering 40, 20, and 10 meters. (It will also cover 30, 20, and 10 if the wire stinger is shortened.) Being a half-wave antenna, no radials are needed. I found that if both sides of the coax coming out of the PAR matchbox are tied together and treated like a random wire, the internal tuner in my Icom IC-703 would match it on 80 meters, with a resulting SWR of 1.2. I used about a 34 ft. counterpoise with this setup. I'm looking forward to seeing if the internal tuner in my KX-1 with the forthcoming 80 meter board will also match it. The IC-703 was unable to get a match on the WARC bands or on 15 meters. Sorry. I think a more robust tuner could probably match those bands as well. An experiment for another day. 73, Grif, KF4JG Sorry, the previous attempt to send this had unacceptable formatting embedded in the text. I don't know how much went through, but some of it got bounced. ___ 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
[Elecraft] Commercial CW and K2 keyer.
My experience with bugs and commercial CW differs from the general thread ... with a 2nd Telegraph, a friend got me a job as a relief operator at a coastal marine station during my senior year in HS (1957). I was 16 and breaking into the crew of OT's was somewhat daunting -- physically as well as verbally (child abuse laws must have been different then). About half way through the year, I and a ham buddy built what I think were the predecessors of the TO keyer. ~10 dual triodes (12AU7, I think), keying relay, and big power supply. I don't remember where we got the plans. It weighed about the same as a brick. It was self-completing, but had no other features we take for granted now, and I modified my Lionel J-36 (which as a stock bug would get dot speeds down to 15 WPM or so without a tamer) to key it. I took it to work one evening, and got the usual abuse I got when I did something wrong or stupid ... fairly common since I was 16. As I was finishing my 3rd shift with it, Tom asked me if I'd leave it so he could play around with it. Next shift was a couple or three days away, and when I went to work, I had to plead to get my keyer back. By the time I graduated and went off to college, Tom, Earl, and Walt had comissioned my buddy to build each of them one. I did get accepted onto the crew, although I still got boxed around some. On my last shift, they had a cupcake with one candle and the Chief made a production out of taking my license down and signing the service record. All three OT's were using their keyers by then. I also remember ... fists afloat weren't always all that great. Mine was perfect of course. I can detect some very subtle timing differences between my K1EL keyer and the way the K2 keys. Both are Mode A, and it seems that the K2 timing is a very teeny bit erratic compared to the K1EL. It's not enough to cause any problems for me, but it is discernable, or at least that's my story and I'm sticking to it. Fred K6DGW ___ 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] PAR antenna on 80 meters
You can often get a match to a difficult antenna system by making it LESS efficient. Many have posted how they have been able to load up this or that antenna after using fewer radials in the counterpoise or through some similar means. That raises the resistance of the system which helps the tuner. The bad news is that the added resistance is loss resistance, not RF being radiated. But as Eric observed, it can make a system usable in a pinch. Of course low SWR is *not* an indication of antenna efficiency. As others have pointed out many times, were that true our dummy loads would be the best antennas ever! Probably the best indicator is the Q or sharpness with which our antenna systems tune, especially when using an antenna that is less than 1/2 wave long. Efficient short antennas have high Q, tuning sharper and sharper (have less bandwidth at the 2:1 SWR points) as they get shorter. For example, I have a doublet that is only about 80 feet overall. It works FB on 80 meters, but I have to retune if I move more than 5 or 10 kHz to keep the SWR down below 2:1. That is a sign that it is working efficiently. If you have a short antenna that seems to work over a broad range in the band, you can be sure that there is a lot of loss resistance in the system. Be happy if your short antenna requires that you to wait while the tuner finds a new match after moving a few kHz! Ron AC7AC ___ 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] Let me Build/Upgrade/Repair your K2
Folks, My K2 workbench is nearing an empty state. If you have a K2 in need of repair or upgrade or even just alignment, I can handle it for you. I am listed on Elecraft's Builders for Hire list, and I will build a K2 to your preferences. My price list on request. Handicapped hams are eligible for special pricing consideration. I have extensive experience with the K2, I was one of the original 100 Field Testers and have built many of the K2s already in the field (I have actually lost count), and have done repairs or upgrades on many others. In addition to the K2, I have built nearly every other piece of Elecraft gear, so if your interest is other than the K2, I can handle that too. 73, Don W3FPR ___ 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] PAR antenna on 80 meters
Hi Grif - This is an interesting idea, but when I try to sketch out the schematic, it looks a little odd to me. The Par transformer is either a true, flux-coupled transformer with a ground return connecting the ground sides of the primary and secondary windings, or it's an autotransfomer with a similar ground return. The little voltage measurement test I did a few years back doesn't discriminate between the two designs, but it is one or the other. (The case is sealed with epoxy.) The Par is a broadband design, given that there's no capacitor to tune when you change from a half-wave wire at 40m to a half-wave wire at 20m, for example. If you short the primary and connect a counterpose at the rig, you end up with the transformer's secondary in series with the antenna, and with complement current flowing on the counterpose. The problem is that any magnetic flux generated by currents flowing in the secondary induces current in the (former and now shorted) primary where it will be dissipated as heat. I may not be thinking about this correctly - I welcome any critique of this analysis -- but it seems to me you might do better with a non-resonant (say 44-foot) wire connected to the coax connector's center pin and with a 1/4-wave counterpoise connected to coax connector's ground. The latter arrangement should tune well with most simple L network autotuners and might turn out to be more efficient. 73, Ken K3VV ___ 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 SOLD
___ 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] KPA100/HiCurr
OK, I am sure the answer to this question is in the manuals. That said, I haven't found it yet. I get a HiCurr warning on various bands at powers between 75 and 100W. Rig performs perfectly otherwise, and the HiCurr warnings don't seem to affect it's performance (worked 6N0F this AM oon 40) with a bunch of them. Am I missing something here? Lowering power on solid state amps doesn't always lower the drain due to efficiency curves, but I still don't know what my K2 really does. I have this sneaking feeling that there's a setting in the menus to fix this .. just can't find it. Or maybe I don't need to fix it. Fred K6DGW Auburn CA CM98lw ___ 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] KPA100/HiCurr
Fred, Since you have the KPA100, you should have set the menu item CAL CUR to 3.5 amps. If you did not, that could be adequate explaination. The High Current warnings are indicating that the base K2 is drawing a current greater than the CAL CUR setting - it says nothing about the current that is being drawn by the KPA100. Other things to look at: What is your power supply voltage? If it is on the order of 13 to 14 volts, the current draw should be within bounds. Be certain you have an adequate size wire to the power supply and be certain that all connections to the power cable are tight. Can you find any heating on the power cable including the fuse and the end connectors? Heating is a sign that the connections have a higher than desirable resistance. Check the voltage during transmit by tapping the display button - does it drop significanly? If so, you may want to check the power supply. Note that the K2 will attempt to deliver full power if the supply voltage is reduced, but the only way that can happen is for it to draw more current (P=IV, and if the voltage drops, the current must increase if the power is to be maintained). If the power supply is OK and delivering adequate voltage during transmit, then you should look at the low pass filters in both the base K2 and the KPA100. A low pass filter problem will most likely result in high current. Lastly, look at your antenna - if it is operating with an SWR less than 2, you should be able to develop full power without high current warnings, but if it is greater than 2:1, that alone may be your problem. Check while transmitting into a dummy load (with no ATU in-line) to check the full power output current. 73, Don W3FPR -Original Message- OK, I am sure the answer to this question is in the manuals. That said, I haven't found it yet. I get a HiCurr warning on various bands at powers between 75 and 100W. Rig performs perfectly otherwise, and the HiCurr warnings don't seem to affect it's performance (worked 6N0F this AM oon 40) with a bunch of them. Am I missing something here? Lowering power on solid state amps doesn't always lower the drain due to efficiency curves, but I still don't know what my K2 really does. I have this sneaking feeling that there's a setting in the menus to fix this .. just can't find it. Or maybe I don't need to fix it. Fred K6DGW Auburn CA CM98lw ___ 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: 7.1.375 / Virus Database: 267.14.25/247 - Release Date: 1/31/2006 ___ 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
