Re: [Elecraft] Experience with off brand Lithium AAs?
When a line first begins making processors, the % of processors that will pass all the highspeed tests low, while the % that will pass the lower speed tests is greater. So they are priced and spec'd so that the entire run is (hopefully) bought up. If they priced 'em all the same, there would be a shortage of highspeed processors and a surplus of lowspeed ones. It's not just speed, either. Quite often large chunks of circuitry will fail, so they'll be deliberately disabled (fuses on the chip are deliberately blown, or even lasered off) and sold as a different model, for example a 4Meg cache might have a microscopic speck of dust ruining a few rows, so they disable that half of the cache and sell it as a 2Meg cache version, or the really extreme case - you might have half a dual-core CPU disabled and the other half sold as a single-core CPU. It's much better than the alternative, where you used to get about 2 working chips off each wafer - frequently less than a 1% success ratio. -- Nosey Nick Waterman, G7RZQ, K2 #5209. use Std::Disclaimer;[EMAIL PROTECTED] COFFEE.SYS missing Insert cup in cup holder and press any key ___ 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] Signal Generator manual
Hi I have got a 2nd hand HP 8657B RF generator that needs some fixing. I am searching the service manual which in HP's numbering is 08657-90007. Does anybody have a PDF copy of it? Regards Eduardo/EA2BAJ ___ 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] Experience with off brand memory cards
Ron D'Eau Claire wrote: Joe, AA4NN, wrote: I'm guessing, then, the 1GB PC2700 333MHz memory card I purchased from an internet site $40 cheaper than same spec memory card on the Dell site is inferior and could fail soon? de Joe, aa4nn No. In fact you may have determined the cost to Dell for stocking the part and advertising. If you really got a 1GB PC2700 333MHz your set up. I imagine your building yourself a computer. 1 Gig of ram with a 1 Gig swap directory will make a fast computer! I build my own computers from sources on the Internet. The 1 GB RAM has to date been too expensive but looks like my next one may be like yours. 73 Karl --- Do you always get more if you pay more? Absolutely not. But that doesn't make the corollary true. You don't get the same quality when you pay less. Even if you know the part came from the same plant. Ron AC7AC It might. It might not. You left out the other sentence: Do you always get more if you pay more? Absolutely not. My point was that the fact that many products come from the same manufacturers does not mean they are equal. What we often don't know is whether a cheaper product isn't just as good for the intended purposes. Years ago John Glenn, talking about having ridden a Mercury capsule aloft for America's first orbital flight in space, observed that he was placing his life in the hands of those who made millions of parts ..all supplied by the lowest bidder... What he left out was that those parts were bid, tested and supplied by manufacturers working to very complete and exacting specifications. That was my work in the early 60s: Component Engineering, writing component specifications for programs including some of the stuff going into the manned space program. The trick was to pin down every important criteria a part had to meet: whether it was a nut, or a battery, or the turbine that pumped fuel into a rocket motor. The lowest bidder Glenn referred to was the one who could supply parts meeting *every* specification at the lowest cost. Unfortunately, when we're standing in the aisle at the discount store, we don't have a complete set of specifications with us for our intended use nor do the manufacturers offer any detailed specifications or warranties. A long time ago one manufacturer (Ray-O-Vac??) offered to replace any flashlight ruined by a leaking battery. I haven't seen anything like that in years! Still, I buy name brand batteries because I feel more confident using them. And that speaks to something else I learned a long time ago: I, and everyone I've known, makes choices for emotional reasons. We choose what we do based on how we feel about it. Only after doing that do we apply logic to justify the choice! 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 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] Signal Generator manual
Hola Eduardo: You can download it from http://cp.literature.agilent.com/litweb/pdf/08657-90157.pdf Raj, N2RD Eduardo Jacob wrote: Hi I have got a 2nd hand HP 8657B RF generator that needs some fixing. I am searching the service manual which in HP's numbering is 08657-90007. Does anybody have a PDF copy of it? Regards Eduardo/EA2BAJ ___ 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] K2 Filter and BFO Settings Question
When setting the LSB BFO setting the called for frequency in the manual is 4912.7. The lowest I can set mine is 4912.86. All of the other settings on both CW and SSB can be set to the called for frequency. Do I have a problem? 73, Steve K8IDN ___ 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 AGC problem on 40m
Hi all, i would lik evening I reconized a AGC problem on 40m band. My signal meter shows S8 to S9 and it sounds like RF-Gain is turned counter clockwise. If i use ATT to reduce the signal level it does not help. The signals will drop down but it still sounds like AGC is to high. I assume it is related to the big signals from broadcast band here in europe. However, further I am not sure if my ALC is working correct. I recoginized following : If I disconnect my antenna from K2 and turn AGC ON/OFF I hear a recognizable difference. I tried to adjust R1 to get the same level. In my case I got the same level if R1 is set to the minimum value. If I do so it looks like the RF- Gain pot has no effect anymore. I assume this is not the intention. I turned it back to the recommended value to get 3.8 volts now. Any ideas where I can investigate are welcome. 73 de Joerg (DL3QQ) ___ 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] Additional Info on Problem
On double checking the BFO Test (pg 62 of manual) the BFO Low Freq. is too high. The manual says it should be less than 4912.7 mine is 4912.86. How can I lower it? ___ 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] More Info on Problem
I double checked the counter accuracy with two different counters. It is correct. If I touch L33 it lowers the BFO frequency to a figure within range. 73, Steve K8IDN ___ 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] Solar Panels
I'm interested in using solar panels to power the K2 for emergency/field day operations and am wondering what sort of experience others have had. The panels seem expensive: about $100 for a 5 watt panel but with battery and a low power draw of the K2, they look like they can sustain operations for extended periods of time. How does this work in practice ? Is there enough 'juice' delivered to keep a station operational ? How about portability ? Thanks to everyone in advance for your responses. Douglas Todd (KE7GYQ) ___ 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] Solar Panels
Douglas, I purchased a 20 watt Rip Stop Nylon Protected Epoxy Solar Panel from Connecticut Solar 4 years ago and am very satisfied with them. It will put out 1200mA which is plenty and more for charging other cells while operating. Here is the link. They also sell a 10 watt version. http://www.ctsolar.com/Expedition20W.htm You will need a controller which I also purchased from them. Hope this helps. 73 john-n4dsp - Original Message - From: Douglas Todd [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, July 03, 2006 1:56 PM Subject: [Elecraft] Solar Panels I'm interested in using solar panels to power the K2 for emergency/field day operations and am wondering what sort of experience others have had. The panels seem expensive: about $100 for a 5 watt panel but with battery and a low power draw of the K2, they look like they can sustain operations for extended periods of time. How does this work in practice ? Is there enough 'juice' delivered to keep a station operational ? How about portability ? Thanks to everyone in advance for your responses. Douglas Todd (KE7GYQ) ___ 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] Solar Panels
I'm interested in using solar panels to power the K2 for emergency/field
day
operations and am wondering what sort of experience others have had.
I have had very positive results using a solar panel, Douglas.
I also have a K2 and a solar panel with rechargeable battery is my main
power source for it. I am using a normal 7 AH sealed lead acid battery
which resides in the shack. I have a 10W solar panel. It is a very nice
high quality unit made by BP which I bought over the internet for about
$125. This matches up nicely with the 7AH battery and the K2 current draw.
I use a Don Brown charge controller which I built from one of his kits. I
can highly recommend this also (no connection to either). If you search the
Elecraft reflector for Don Brown and/or Charge controller you should
come up with info about ordering the kit - as I recall it was only about
$25. It will allow charging from either a modest size solar panel or from a
power supply.
The solar panel puts out about 650 mA in full sun which is about the desired
upper limit of the charge rate for this sized battery. The wiring between
the panel and the battery is non-critical - I use AWG18 - since the current
is limited and you don't care about voltage drop since the open circuit
output voltage of the panel is over 16V.
I used this setup on Field Day this year but with the K2 turned down to 5W.
The battery kept me going all night and the solar panel took over and
refreshed things on Sunday. The setup does work - even for contests.
Let me know if you would like more info
73
Craig AC0DS
___
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Re: [Elecraft] Solar Panels
This doesn't help any of us now, but http://www.nanosolar.com/ looks like a company worth keeping an eye on in the coming year or so. Their products should offer solar energy at lower cost. Mike ab3ap Douglas Todd wrote: I'm interested in using solar panels to power the K2 for emergency/field day operations and am wondering what sort of experience others have had. The panels seem expensive: about $100 for a 5 watt panel but with battery and a low power draw of the K2, they look like they can sustain operations for extended periods of time. How does this work in practice ? Is there enough 'juice' delivered to keep a station operational ? How about portability ? Thanks to everyone in advance for your responses. Douglas Todd (KE7GYQ) ___ 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 Filter and BFO Settings Question
Steve, That is a normal result of an inadequate BFO range - go back to page 62 in the manual and recheck the range. BTW, my manual shows that the LSB BFO is to be set at 4913.7 rather than your stated 4912.7. Keep in mind that this is only an initial setting, you will want to chage it after you install the KSB2 and even after that, the optimum setting is best observed by using Spectrogram or a similar audio spectrum analyzer display. 73, Don W3FPR -Original Message- When setting the LSB BFO setting the called for frequency in the manual is 4912.7. The lowest I can set mine is 4912.86. All of the other settings on both CW and SSB can be set to the called for frequency. Do I have a problem? 73, Steve K8IDN ___ 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] Solar Panels
Hi
I sell the low power solar controller kits.
You can order them from me at
Don Brown
19132 Falls Creek Drive
Flint Texas 75762
cash check or money order only
The low power version will handle from 1 to 35 watts and the price is $20 or
$35 for two with one set of documentation
The kit includes the circuit board and all parts required to build the
controller. You will need to supply a box or
build it into your battery box or radio.
I also have a high power version that will handle up to 200 watts for $30 or
$55 for two
Thanks
Don
KD5NDB
snip
I also have a K2 and a solar panel with rechargeable battery is my main
power source for it. I am using a normal 7 AH sealed lead acid battery
which resides in the shack. I have a 10W solar panel. It is a very nice
high quality unit made by BP which I bought over the internet for about
$125. This matches up nicely with the 7AH battery and the K2 current draw.
I use a Don Brown charge controller which I built from one of his kits. I
can highly recommend this also (no connection to either). If you search the
Elecraft reflector for Don Brown and/or Charge controller you should
come up with info about ordering the kit - as I recall it was only about
$25. It will allow charging from either a modest size solar panel or from a
power supply.
The solar panel puts out about 650 mA in full sun which is about the desired
upper limit of the charge rate for this sized battery. The wiring between
the panel and the battery is non-critical - I use AWG18 - since the current
is limited and you don't care about voltage drop since the open circuit
output voltage of the panel is over 16V.
I used this setup on Field Day this year but with the K2 turned down to 5W.
The battery kept me going all night and the solar panel took over and
refreshed things on Sunday. The setup does work - even for contests.
Let me know if you would like more info
73
Craig AC0DS
___
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RE: [Elecraft] Additional Info on Problem
This was covered in a post on the reflector a couple days ago - a small padder capacitor from the junction of X3, X4 and C174 to ground may solve your BFO low frequency problem. Use 1 or 2 pf and recheck both ends of the BFO range after adding it. Normally 4912.86 can be low enough except in extreme cases - note that the LSB BFO is set at 4913.7 which is well within your currently available BFO range. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Monday, July 03, 2006 1:30 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Additional Info on Problem On double checking the BFO Test (pg 62 of manual) the BFO Low Freq. is too high. The manual says it should be less than 4912.7 mine is 4912.86. How can I lower it? ___ 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 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII 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: 7.1.394 / Virus Database: 268.9.8/380 - Release Date: 6/30/2006 ___ 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
Re: [Elecraft] Solar Panels
Douglas Todd wrote: I'm interested in using solar panels to power the K2 for emergency/field day operations and am wondering what sort of experience others have had. I operate a K1 with a 7ah gel cell and a 5 watt solar panel (about $50 from Harbor Freight) with Don Brown's controller. With good sunshine I can operate all day and go home with a fully charged battery. Bob Baxter aa7eq ___ 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 ALC problem on 40m
Hi all, i would like to decribe a problem I am faced with my K2. Every evening I reconized a AGC problem on 40m band. My signal meter shows S8 to S9 and it sounds like RF-Gain is turned counter clockwise. If i use ATT to reduce the signal level it does not help. The signals will drop down but it still sounds like AGC is to high. I assume it is related to the big signals from broadcast band here in europe. However, further I am not sure if my ALC is working correct. I recoginized following : If I disconnect my antenna from K2 and turn AGC ON/OFF I hear a recognizable difference. I tried to adjust R1 to get the same level. In my case I got the same level if R1 is set to the minimum value. If I do so it looks like the RF- Gain pot has no effect anymore. I assume this is not the intention. I turned it back to the recommended value to get 3.8 volts now. Any comments where I can investigate are welcome. 73 de Joerg (DL3QQ) ___ 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] Solar Panels
I use 5 watt solar panels from Harbor Freight (http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41144). They go for $50.-. Once and a while they are on sale for about $35.-. They seem to be well made. They have an aluminium frame and an o-ring type seal. At the moment I have 3 on my roof for a total of 15 watts. They are not roll up panels but they are priced right. If you go to their main web page and enter solar for a search item you'll see a lot of solar panels for sale. Roger, W1EM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Douglas Todd Sent: Monday, July 03, 2006 1:56 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Solar Panels I'm interested in using solar panels to power the K2 for emergency/field day operations and am wondering what sort of experience others have had. The panels seem expensive: about $100 for a 5 watt panel but with battery and a low power draw of the K2, they look like they can sustain operations for extended periods of time. How does this work in practice ? Is there enough 'juice' delivered to keep a station operational ? How about portability ? Thanks to everyone in advance for your responses. Douglas Todd (KE7GYQ) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FS Complete Elecraft K2 100 watt station reduced price
I have for sale a K2-100 serial number 323. This is a complete HF station ready to go on the air. All you need is a power supply and antenna to be on the air! $1,000.00 plus shipping and it is yours. I have reduced the price $100 and the KAT-100 automatic antenna tuner is included. this is my last post before it goes on E-Bay. K2 radio (transceiver) KPA100 (100 watt amp incorporated as the top cover to the K2) KSB2 (SSB board) K160RX (160meters) K60XV (60 meters) KNB2 (Noise Blanker) KDSP2 (DSP filter) Yeasu FT100 tuning knob KAT100-1 100 watt automatic antenna tuner Power cords and cables included with all manuals and documentation. Heil MH2 hand mic Heil Desk mic and stand $1,000 firm plus shipping. All of the approved Elecraft mods have been accomplished to the current production K2's as well as the 100 watt amp mods including thermal stability and the keying shaping mod. Rev A to Rev B current firmware. The K2 works perfectly full 100 watts out on all bands and has been tested and aligned by Gary at Elecraft. Glenn Maclean WA7SPY ___ 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] Solar Panels
On Mon, 3 Jul 2006 14:38:59 -0500 Don Brown [EMAIL PROTECTED] writes: I sell the low power solar controller kits. Just want to add a testimonial for Don's solar charge controller kits. We used one at Field Day to run a 12 A-hr battery (RS Jump Starter) with a 15 watt panel for the K2, and also with a set of three 15 watt panels and a 100 A-hr marine battery to run the inverter for the logging computer - gotta figure out a better, more QRP friendly logger - maybe cellulose fiber graphic panels coupled with a manually vectored graphite character generator - I'm told they support the full ASCII set and have integrated error correction. Anyway, Don's kit are great - good parts, good boards, and good instructions, at a good price... The usual disclaimer... no pecuniary interest, etc... 72 Jim N5IB ___ 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 no DSP Menu
When I fired up the K2 today, it was all confused and I had to do a 4-5-6 reset. After the reset I could get no DSP menu so I removed the KDSP and jumpered the audio lines in order to do the CAL FIL. At that time when I pressed the AFIL switch I got a not installed message as I should. After the CAL PLL, and CAL FIL operations, and putting everything back together I tapped DISPLAY to get the KDSP menu and no luck. Just Frequency and Voltage and Current. Activating the AFIL switch cycles me thru CF1 thru CF4 as expected. Ideas anyone? Jim W4ATK ___ 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] K2/100 no DSP Menu
When I fired up the K2 today, it was all confused and I had to do a 4-5-6 reset. After the reset I could get no DSP menu ... After the 4-5-6 reset, be sure you enable the real time clock in the secondary menu or the K2 won;t be able to talk to the DSP. 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] Experience with off brand Lithium AAs?
I have had all three leading consumer brands of alkaline batteries leak, and several of the industrial size we use at work. The enemies of all alkaline cells are heat and moisture, and time. A number of all types of alkaline cells have reversed polarity in a string of series cells, usually of AA size. Keeping your portable dry cell powered gear in an insulated beer cooler, or similar protection while in the hot car, or outdoors may prolong the battery life. Expensive things like antenna analyzers require one to proactively check the cells from time to time, and take them out if not using the equipment for a prolonged period. Stuart K5KVH ___ 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 ALC problem on 40m
Jeorg, Yes, I would first look carefully at the AGC section for unsoldered components and incorrectly placed components. Let the schematic be your guide in identifying the components involved. The BC signals can take over the receiver IF and cause strange results. I recommend that you check the AGC action on a band other than 40 meters - if it is OK on other bands, then you should look at changing the 40 meter bandpass filter to provide a more narrow response on 40 meters. There is a 'European' mod to the 40 meter bandpass that may help you - it is an application note at the Elecraft website, look for it at http://www.elecraft.com/Apps/eu_40_meter_narrow_bandpass_filt.htm 73, Don W3FPR -Original Message- i would like to decribe a problem I am faced with my K2. Every evening I reconized a AGC problem on 40m band. My signal meter shows S8 to S9 and it sounds like RF-Gain is turned counter clockwise. If i use ATT to reduce the signal level it does not help. The signals will drop down but it still sounds like AGC is to high. I assume it is related to the big signals from broadcast band here in europe. However, further I am not sure if my ALC is working correct. I recoginized following : If I disconnect my antenna from K2 and turn AGC ON/OFF I hear a recognizable difference. I tried to adjust R1 to get the same level. In my case I got the same level if R1 is set to the minimum value. If I do so it looks like the RF- Gain pot has no effect anymore. I assume this is not the intention. I turned it back to the recommended value to get 3.8 volts now. Any comments where I can investigate are welcome. 73 de Joerg (DL3QQ) ___ 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] Solar Panels
I just got a copy of the ARRL book Emergency Power and I am impressed! That stuff may be old hat to some of you, but I'm a real noob at this and it looks very good for getting up to speed. Lots of basic stuff like Don't let shadows fall across your panel and more advanced stuff like charge controller theory and schematics. Let me get my k1 done then I may well build or at least buy a no- frills K2. 73 de Alex NS6Y. On Jul 3, 2006, at 3:23 PM, [EMAIL PROTECTED] wrote: On Mon, 3 Jul 2006 14:38:59 -0500 Don Brown [EMAIL PROTECTED] writes: I sell the low power solar controller kits. Just want to add a testimonial for Don's solar charge controller kits. We used one at Field Day to run a 12 A-hr battery (RS Jump Starter) with a 15 watt panel for the K2, and also with a set of three 15 watt panels and a 100 A-hr marine battery to run the inverter for the logging computer - gotta figure out a better, more QRP friendly logger - maybe cellulose fiber graphic panels coupled with a manually vectored graphite character generator - I'm told they support the full ASCII set and have integrated error correction. Anyway, Don's kit are great - good parts, good boards, and good instructions, at a good price... ___ 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 5613 Lives
Just wanted to report that K2 #5613 lives. I just made a couple of q's, one in MN (from NY) and another to YO. Time to start working on the options. All the best, Raj, N2RD Rajiv Dewan, N2RD K2 # 5613 ___ 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 5613 Lives
Congrats Raj. Hopefully, I'll be in the same position with #5644 here in the next few weeks (finished first alignment yesterday). 73, -Mike N8YO Rajiv Dewan, N2RD wrote: Just wanted to report that K2 #5613 lives. I just made a couple of q's, one in MN (from NY) and another to YO. Time to start working on the options. All the best, Raj, N2RD Rajiv Dewan, N2RD K2 # 5613 ___ 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] Complete K2 station sold
The K2 station I had for sale has been sold. Thanks to all who inquired, Happy 4th of July! Glenn Maclean WA7SPY ___ 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] Happy Birthday to the United States of America
I would like to wish our country Happy Birthday. We've pushed and prodded our poor Constitution but it still is a proud document. Another two hundred years would be a nice gift to the folks who founded our nation so long ago. Happy Birthday to the home of my parents, their parents, and to those who welcomed their parents to its shore. Kevin. KD5ONS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KX1 #1499 is on the air
KX1 #1499 presented no problems. I got this zen-of-elecraft thing down now so I know to look in the serial number envelope for the thermal pad, which saves a lot of frantic searching. (Of course the parts list says it's there, but I don't always read that.) :-) I initially had no output on transmit but realized my error in skipping the step where you turn R4 fully clockwise. Duh. FWIW my paddle kit had stranded wire rather than solid wire. Kinda tough making those tight little connections with stranded wire but no problem finding a couple inches of solid #24 to use in its place. KD6LM fought the QRM to give me a 229 report and my first QSO on the KX1. So the shack is full of Elecraft gear now. K2/100 #4941, K1 #1966, and now KX1 #1499. That's a lot of radios for a guy who works Field Day and Sweepstakes and little else. They're just so darn much fun to build. :-) Craig NZ0R ___ 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
