Re: [Elecraft] K3 deaf when narrow filter engaged
EE INIT solves problems if the factory init didn't take. I've only heard of that once (my K3, one of the first kits). Elecraft has the assembly and factory handling procedures down to a hard-coded science by now, so it should not happen at all. Having the ref osc off by a whole bunch, for example 1 KHz, would definitely give weird results. Normally the ref osc calibration is pretty close - 5 to 6Hz at the outside - from what I know of it. I've helped a few kit builders go through the paces and never seen cal errors start out that high. The gain and S-meter calibrations should go smoothly now that you're past the important radio really works setup. Enjoy your first K3 weekend! I still remember mine - CQ WW SSB using my first K3 incarnation - a K3/10. Seven new countries under really un-stellar conditions You're welcome. 73, matt W6NIA On Sat, 09 Jul 2011 00:44:33 -0400, you wrote: Problem solved -- I think I ended up doing a factory reset (power-up while pressing/holding Shift knob in until power up completed), EE INIT. And I just read through the rest of your note and now see that's what you suggested! I then went through the entire setup process. What I did differently this time was during the reference oscillator calibration, I found that much less of an adjustment was needed than what I did before. In fact it was fine as-is. I'm not sure what prompted me to adjust the oscillator before (I used WWV as an on-air reference), but this time around, everything came out fine. I suspect my incorrect reference oscillator adjustment explains why all three filters appeared to have incorrect offsets. Now the only remaining problem is getting the rig to show S9 with a 50 uV source. The adjustment range doesn't go far enough to produce S9 on the display. I put a new battery in the XG2 signal source, same problem. I'm not too concerned about this one -- only mildly annoyed. This is a very minor problem compared to what I *thought* was wrong with my filters! Thanks for your detailed response -- appreciated. --Andrew, NV1B On Sat, Jul 9, 2011 at 12:33 AM, Matt Zilmer mzil...@verizon.net wrote: The chances of that are negligible. You should send your original email and all follow-ups to k3supp...@elecraft.com. I have heard of a lot of strange K3 symptoms, but this one is beyond the pale. It sounds like one of the pre- or post-roofing filter components is somehow shifting the resonance, and looking at the schematic I just don't see how that's possible unless there is a bypass-value in place of a regular cap. Conventional SMT assembly - that would not happen. I'm no expert, but this probably is not some trouble that can be shot over email. One of the Elecraft gang can help you narrow it down, but it should probably be done interactively over the phone or Skype or whatever. You *may* be able to avoid the additional hassle by running the EE INIT procedure on your K3 and starting over. This will only work if there isn't some defect in the hardware, but that is so unlikely that running EE INIT is your best bet. See p66 of the Owner's Manual (rev D7), or use Adobe to search for Parameter Initialization. If you dorked a setting, then EE INIT will solve that problem and put your K3 into its factory default settings. Good Luck. No matter what you can or can't get done in short order, Elecraft will assist you with any problem. 73, matt W6NIA K3 #24 == On Fri, 08 Jul 2011 23:40:40 -0400, you wrote: Filter placements are correct, and no empty slots are enabled -- I've done the setup both ways: manually via CONFIG on the K3 itself, and via the K3 utility. Done it many times now. Here's the odd part: If I change the frequency offsets in the K3 (via CONFIG menu), I can dial across the range of value offsets and peak a signal almost to the point at which things sound like they're operating properly. Same thing happens for 3 of my filters -- the 2.7k, 400 Hz and 200 Hz. In all cases the specified offset is not the one value that gives the strongest signal. Using the specified offsets, it seems like the signal is not properly centered in the passband. What are the chances all three of my filters have the wrong offsets? Possible but doubtful. Is there some other setting on the K3 that I may have inadvertently tweaked during calibration that would have thrown off all filters? I'm stumped. --Andrew, NV1B .. On Fri, Jul 8, 2011 at 9:35 PM, Guy Olinger K2AV olin...@bellsouth.net wrote: The most likely cause of your problem is that the filter placements as viewed in the K3 utility and as actually installed on the main board do not actually match. Next is that you have left an empty slot ENABLED in the K3 utility. After that, a filter not plugged all the way in or defective. 73, Guy. On Fri, Jul 8, 2011 at 8:06 PM, Andrew Moore andrew.n...@gmail.com wrote: New K3 with 3 filters:
Re: [Elecraft] KPA500: Shipping
My freight cost was US$241.98 to Innisfail, Queensland, Australia from Aptos. I am waiting (not so patiently) for my KPA500 kit to arrive sometime next week. Jeff Cochrane - VK4BOF Elecraft K3 # 4257 - Original Message - From: Edward Dickinson III To: 'Elecraft Reflector ' Sent: Saturday, July 09, 2011 9:05 AM Subject: [Elecraft] KPA500: Shipping What have shipping costs been running on the KPA500? 73, Dick - KA5KKT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Welcome to Moe's!!!
No...we are NOT off topic! With all this talk of cookie sheets, muffin tins, etc being pressed into service when building Elecraft kits, I thought I'd pass along something I came up with to alleviate the problem of keeping track of all those tiny screws, nuts, bolts, lock washers, spacers, and other small stuff that can easily get lost in the shuffle when building a kit. Moe's! Yup, Moe's. In addition to some of the best Southwestern cuisine around, they offer a wide selection of salsa and 'hot sauces when you purchase a meal. You put these condiments into little opaque plastic cups that are provided on the condiments bar. These 1-2 oz opaque plastic cups are perfect for holding small parts after you sort them during inventory. You can write on the side of the plastic cup with a black Sharpie (tm) listing what size the hardware is for quick reference. Cost? Zero, Zip, Nada, Nothing! Just pick up a few each time you go to Moe's and after three or four trips you;'ll have a couple years worth of small opaque plastic parts cups to see you through many builds. Have fun and Welcome to Moe's!!! (Burp!!) 73 Rich Arland, K7SZ Bent Dipole Ranch, Dacula, GA Cogito Ergo CQ (I think therefore I HAM) Author: The ARRL's Low Power Communications, the Art and Science of QRP (all 3 editions) Editor: QRP POWER, QST Magazine (Jan 2000 to Dec 2003) Editor: The Learning Curve, CQ Magazine Editor: The Beginner's Column, CQ-VHF Magazine __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 deaf when narrow filter engaged
Andrew Moore-3 wrote: Now the only remaining problem is getting the rig to show S9 with a 50 uV source. The adjustment range doesn't go far enough to produce S9 on the display. I put a new battery in the XG2 signal source, same problem. 1. Did you first do the RF Gain Calibration using the K3 Utility? 2. Are you zero beat on the signal? You can use CWT if you're not able to zero beat by ear. 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-deaf-when-narrow-filter-engaged-tp6564529p6565501.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KPA500 Demo mode ?
Apologies if this has been asked before. What is “Demo mode” ?? 73, Bill N2BC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 deaf when narrow filter engaged
Hi Bill - yes, RF Gain Calibration done first, and always zero beat. I was trying to set it up with S-meter mode Absolute, not Relative, since I am using an XG2. I ended up going back to relative and things are behaving normally, but I'd love to get this Absolute mode working. Maybe my XG2 isn't doing 50 uV properly. Thanks, --Andrew, NV1B .. W4ZV 1. Did you first do the RF Gain Calibration using the K3 Utility? W4ZV 2. Are you zero beat on the signal? NV1B Now the only remaining problem is getting the rig to show S9 with a 50 uV source. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 deaf when narrow filter engaged
I'm sure you know this but in ABS mode, be sure to turn both PREamp and ATTenuator off. And be sure to start with SMTR SC = 14 before adjusting SMTR OF for S9 (adjust so it just turns to S9 coming from S8). All of this is in the manual but I'm just hoping you overlooked a step. I doubt it's your XG2 but you never know! I have the XG3 and my old XG1 is within ~2 dB of it at 50 uV. Using the latest RF Cal routine with the XG3's -33 dBm output you can adjust the K3 so it reads perfectly at all levels in ABS mode. 73 GL! Bill On Sat, Jul 9, 2011 at 8:26 AM, Andrew Moore andrew.n...@gmail.com wrote: Hi Bill - yes, RF Gain Calibration done first, and always zero beat. I was trying to set it up with S-meter mode Absolute, not Relative, since I am using an XG2. I ended up going back to relative and things are behaving normally, but I'd love to get this Absolute mode working. Maybe my XG2 isn't doing 50 uV properly. Thanks, --Andrew, NV1B .. W4ZV 1. Did you first do the RF Gain Calibration using the K3 Utility? W4ZV 2. Are you zero beat on the signal? NV1B Now the only remaining problem is getting the rig to show S9 with a 50 uV source. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3 status
We have a KX3 engineering prototype getting exercised on the air this weekend at K7S, our local QRP group's annual Salmoncon event. We used it yesterday to activate Little Si as part of the Summits On The Air program and we made several SSB and CW contacts with it. Last night we made several additional contacts in general operating, include DX. Being an engineering prototype, the radio has its warts, but all of the several operators who have tried it out so far are pretty enthusiastic about it... 73, Lyle KK7P Has anyone heard any feedback yet on the rigs performance? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KPA500 problem
Took two days to put this kit together and unfortunately it is dead. Too many things are happening to describe, but Dale is helping and hopefully in another week it will be on the air. Guess I'm not used to building something w/o a soldering iron. :-) Jay, W6JDB K2/100, K3, P3 maybe KPA500 (to sub for SB221) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Receive antenna on 10w K3?
I've noticed that there is receive antenna with the KPA3. I'm looking at the 10w K3 and I don't see any receive antenna option for it. I'm I missing something? Gary, N7HTS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500 Demo mode ?
It is used for trade show demos where we do not have the mains power available to run the amp at full power. Turning it on disables the RF output, but still simulates it on the Watmeter. 73, Eric WA6HHQ www.elecraft.com _..._ On Jul 9, 2011, at 4:20 AM, Bill Coleman n...@stny.rr.com wrote: Apologies if this has been asked before. What is “Demo mode” ?? 73, Bill N2BC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Operating KPA500 on 220V
Am I correct in assuming that in order to run the KPA-500 on 220 volts all that is needed is to change the fuses to the provided 6 amps, wire the correct plug on the power cord and the power supply will adjust accordingly? Thanks, Doug K0DXV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Operating KPA500 on 220V
When you change the fuses, you insert the fuse holder so 220 is visible in a little window instead of 115. That changes the wiring to the power transformer input for 220 volt mains operation. It's described at the beginning of the Owner's manual. Ron AC7AC -Original Message- Am I correct in assuming that in order to run the KPA-500 on 220 volts all that is needed is to change the fuses to the provided 6 amps, wire the correct plug on the power cord and the power supply will adjust accordingly? Thanks, Doug K0DXV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Receive antenna on 10w K3?
Gary D Krause wrote: I've noticed that there is receive antenna with the KPA3. I'm looking at the 10w K3 and I don't see any receive antenna option for it. I'm I missing something? You may be misreading something. The ONLY true receive-only antenna is available with the KXV3 option (or AUX RF if you have a KRX3). 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/Receive-antenna-on-10w-K3-tp6565914p6565942.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Operating KPA500 on 220V
Yep. It works great on 220. 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member On Sat, 09 Jul 2011 09:38:20 -0600, Doug Person k0...@aol.com wrote: Am I correct in assuming that in order to run the KPA-500 on 220 volts all that is needed is to change the fuses to the provided 6 amps, wire the correct plug on the power cord and the power supply will adjust accordingly? Thanks, Doug K0DXV [snip] __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Receive antenna on 10w K3?
Thanks Bill. I just read through the K3 manual and found the KXV3 module mentioned. I'm glad to see that option available. Thanks, Gary, N7HTS On Sat, 9 Jul 2011 08:50:08 -0700 (PDT) Bill W4ZV btipp...@alum.mit.edu wrote: Gary D Krause wrote: I've noticed that there is receive antenna with the KPA3. I'm looking at the 10w K3 and I don't see any receive antenna option for it. I'm I missing something? You may be misreading something. The ONLY true receive-only antenna is available with the KXV3 option (or AUX RF if you have a KRX3). 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/Receive-antenna-on-10w-K3-tp6565914p6565942.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] RF on pipes
This is a bit OT but it does concern my K3. Hopefully this will not open too big of a can-o-worms. As an experiment to try and achieve a very low impedance ground system, I am using 1 inch rigid copper tubing for my station and Vertical Antenna grounds and ½ copper refer tubing to tie together my ground rods and the mains ground. ANYWAY, I know that RF travels on the outside skin of a conductor. My question is: Does it also travel on the inside skin? In other words, would the impedance be the same on a round hollow tube as it would be if the tube was slit and laid out flat? Thanks, Clint KI6SSN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RF on pipes
On 7/9/2011 10:02 AM, Clint wrote: ANYWAY, I know that RF travels on the outside skin of a conductor. My question is: Does it also travel on the inside skin? Only if you inject it there [e.g. a copper plug into the end of the pipe that connects with the inside only]. Similar to coax which actually exhibits 3 conductors ... the center, the inside of the shield, and the outside of the shield. We suppress currents on the outside with baluns at the antenna feedpoint. A small amount will of current will appear on the inside of the pipe due to inevitable stray couplings even if you inject the RF onto the outside only. In other words, would the impedance be the same on a round hollow tube as it would be if the tube was slit and laid out flat? No. A flat strip has it's own impedance characteristics. 73, Fred K6DGW - Northern California Contest Club - CU in the 2011 Cal QSO Party 1-2 Oct 2011 - www.cqp.org __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3 status
We all are awaiting any feedback on this promising gadget! SM6TUW Den lördagen den 9:e juli 2011 skrev lyle johnsonk...@wavecable.com: We have a KX3 engineering prototype getting exercised on the air this weekend at K7S, our local QRP group's annual Salmoncon event. We used it yesterday to activate Little Si as part of the Summits On The Air program and we made several SSB and CW contacts with it. Last night we made several additional contacts in general operating, include DX. Being an engineering prototype, the radio has its warts, but all of the several operators who have tried it out so far are pretty enthusiastic about it... 73, Lyle KK7P Has anyone heard any feedback yet on the rigs performance? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RF on pipes
Evening Fred, If the pipe is OPEN at its ends, would not the current flowing on the outside of the pipe fold over at the end of the pipe and continue to flow on the inside skin? The reverse, if you like, of the situation where a coax feeder is used to feed a dipole / doublet. 73, Geoff GM4ESD On July 09, 2011 at 18:17 Z, Fred Jensen wrote: On 7/9/2011 10:02 AM, Clint wrote: ANYWAY, I know that RF travels on the outside skin of a conductor. My question is: Does it also travel on the inside skin? Only if you inject it there [e.g. a copper plug into the end of the pipe that connects with the inside only]. Similar to coax which actually exhibits 3 conductors ... the center, the inside of the shield, and the outside of the shield. We suppress currents on the outside with baluns at the antenna feedpoint. A small amount will of current will appear on the inside of the pipe due to inevitable stray couplings even if you inject the RF onto the outside only. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Operating KPA500 on 220V
I meant to say change the fuses and reconfigure the fuse block... I was actually reading the manual when I asked that question. On other amplifiers I was required to change internal transformer wiring to setup for 220v. That's what I meant to ask. So switching the fuses and changing the fuse block is all I need to do. No other internal wiring required. Doug -- K0DXV On 7/9/2011 9:43 AM, Ron D'Eau Claire wrote: When you change the fuses, you insert the fuse holder so 220 is visible in a little window instead of 115. That changes the wiring to the power transformer input for 220 volt mains operation. It's described at the beginning of the Owner's manual. Ron AC7AC -Original Message- Am I correct in assuming that in order to run the KPA-500 on 220 volts all that is needed is to change the fuses to the provided 6 amps, wire the correct plug on the power cord and the power supply will adjust accordingly? Thanks, Doug K0DXV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Operating KPA500 on 220V
That is correct as far as changing between 115 and 220VAC mains goes, but there's a little more to it than that. The power supply is not regulated, so its output can vary depending upon the actual mains voltage supplied within the nominal 115 or 230VAC ranges. Secondary taps on the power transformer allow you to compensate for normal variations in mains input voltages to produce the correct d-c output voltage from the supply. The output voltage should be checked and the taps adjusted as necessary any time you move the amp to a new mains outlet (or, of course, if you switch from a 115 to a 230 VAC mains supply). This is all described under Mains Voltage Settings in the Installation section of the manual on pgs 6 and 7 in the Rev B manual. It's immediately after the information on installing the fuses and the fuse holder. The procedure involves only removing the top cover and attaching the tap wire to the rectifier board that produces a voltage in the proper range as indicated on the KPA500's LCD. The wires use spade connectors that require no tools to connect. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Person Sent: Saturday, July 09, 2011 10:46 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Operating KPA500 on 220V I meant to say change the fuses and reconfigure the fuse block... I was actually reading the manual when I asked that question. On other amplifiers I was required to change internal transformer wiring to setup for 220v. That's what I meant to ask. So switching the fuses and changing the fuse block is all I need to do. No other internal wiring required. Doug -- K0DXV On 7/9/2011 9:43 AM, Ron D'Eau Claire wrote: When you change the fuses, you insert the fuse holder so 220 is visible in a little window instead of 115. That changes the wiring to the power transformer input for 220 volt mains operation. It's described at the beginning of the Owner's manual. Ron AC7AC -Original Message- Am I correct in assuming that in order to run the KPA-500 on 220 volts all that is needed is to change the fuses to the provided 6 amps, wire the correct plug on the power cord and the power supply will adjust accordingly? Thanks, Doug K0DXV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RF on pipes
Geoffrey Mackenzie-Kennedy wrote: Evening Fred, If the pipe is OPEN at its ends, would not the current flowing on the outside of the pipe fold over at the end of the pipe and continue to flow on the inside skin? The reverse, if you like, of the situation where a coax feeder is used to feed a dipole / doublet. No - HF fields cannot propagate inside an open tube because it behaves as like a 'waveguide beyond cutoff'. Any HF EM field injected into the open end will only penetrate a very short distance inside before it decays away. Coax is different because it contains *two* conductors: the inner skin of the tube and the outer skin of the centre conductor. The internal field is created between these two conductors and is thus able to propagate down the line. So the answer to the OP's question is that tubing will only give him the benefit of the larger outside skin. -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RF on pipes
Point taken Ian, grey cells in reverse gear here :-) 73, Geoff GM4ESD On July 09, 2011 at 19:17Z, Ian White GM3SEK wrote: No - HF fields cannot propagate inside an open tube because it behaves as like a 'waveguide beyond cutoff'. Any HF EM field injected into the open end will only penetrate a very short distance inside before it decays away. Coax is different because it contains *two* conductors: the inner skin of the tube and the outer skin of the centre conductor. The internal field is created between these two conductors and is thus able to propagate down the line. So the answer to the OP's question is that tubing will only give him the benefit of the larger outside skin. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Operating KPA500 on 220V
Thanks Ron. I read the section several times because not having done anything like this before made me a little nervous. I wanted be sure I wasn't missing anything. My two other amps require changing lead configurations as well as fuses. My HV is now 72 volts with the KPA-500 plugged into a 220v outlet. So that's just shy of midrange. I get about 550 watts peak output (just makes this value on voice peaks) with 30 watts of drive. 73, Doug -- K0DXV On 7/9/2011 12:11 PM, Ron D'Eau Claire wrote: That is correct as far as changing between 115 and 220VAC mains goes, but there's a little more to it than that. The power supply is not regulated, so its output can vary depending upon the actual mains voltage supplied within the nominal 115 or 230VAC ranges. Secondary taps on the power transformer allow you to compensate for normal variations in mains input voltages to produce the correct d-c output voltage from the supply. The output voltage should be checked and the taps adjusted as necessary any time you move the amp to a new mains outlet (or, of course, if you switch from a 115 to a 230 VAC mains supply). This is all described under Mains Voltage Settings in the Installation section of the manual on pgs 6 and 7 in the Rev B manual. It's immediately after the information on installing the fuses and the fuse holder. The procedure involves only removing the top cover and attaching the tap wire to the rectifier board that produces a voltage in the proper range as indicated on the KPA500's LCD. The wires use spade connectors that require no tools to connect. Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Doug Person Sent: Saturday, July 09, 2011 10:46 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Operating KPA500 on 220V I meant to say change the fuses and reconfigure the fuse block... I was actually reading the manual when I asked that question. On other amplifiers I was required to change internal transformer wiring to setup for 220v. That's what I meant to ask. So switching the fuses and changing the fuse block is all I need to do. No other internal wiring required. Doug -- K0DXV On 7/9/2011 9:43 AM, Ron D'Eau Claire wrote: When you change the fuses, you insert the fuse holder so 220 is visible in a little window instead of 115. That changes the wiring to the power transformer input for 220 volt mains operation. It's described at the beginning of the Owner's manual. Ron AC7AC -Original Message- Am I correct in assuming that in order to run the KPA-500 on 220 volts all that is needed is to change the fuses to the provided 6 amps, wire the correct plug on the power cord and the power supply will adjust accordingly? Thanks, Doug K0DXV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: morse keys , pricing
Tony Estep wrote: and was reviewed in QST May 2010 along with the Begali Simplex, another top-of-the-line key. I also have a Begali Simplex Mono but much prefer the N3ZN ZN-SL (both are single levers). I'm upset with Begali because my paddle had a dissimilar metals problem with the contacts (a fundamental design flaw). Over time these acted as diodes and caused keying problems (and I certainly don't need any help in creating sending errors!) I contacted Begali numerous times about replacement contacts but never got so much as a reply to my emails. This problem has since been solved in production by using silver contacts but my Begali sits unused because I don't want to sell it as is and I have no way to fix it because of the poor customer service. Too bad they don't provide service like Elecraft! 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/OT-morse-keys-pricing-tp6561475p6566409.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500 Assy Man Rev B, and Programmer's Reference uploaded
If I hook up the KPA500 RS-232 P line to the PC, and the KPA500 RS-232 X line to the K3, will commands from the PC to/from the K3 be successfully relayed through the KPA500? Any idea of latency? ( I haven't found a definitive statement one way or the other - it apprears that the command sets are independant). If not currently available, is it on the list of things to do? Thanks Mike, W3IP From: Eric Swartz - WA6HHQ, Elecraft We have placed a new version of the KPA500 Kit Assembly Manual (Rev B), and the KPA500 Programmer's Reference on the Manual Download Page at: http://www.elecraft.com/K2_Manual_Download_Page.htm 73, Eric WA6HHQ -- --- www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Headphones
Because of a hearing loss, (I wear hearing aids) I find that wearing headphones with the K3 (and another radios) works better for me. However, I have noticed that I get more volume out of the built-in speaker than the various headsets I have. With the headsets on, I find I am running the volume control just about at max most of the time, with RF gain also at max. One of the headsets I use, is an old RS “HI-FI” pair that cost $40. way back when, and yet, are less sensitive than my Sony ear buds. Also, for some reason, the RS headset must have a low freq. cutoff near the 600 Hz side tone, as I get more of a “thump” than a sine wave tone out of them. The Sony ear buds, work better, (more volume than the RS ones, even without my aids in) , and the side tone sounds better, than the RS “HI-FI” headset, but, still less than the built-in speaker. Does anyone have any experience with the “communications type headphones sold by AES and other ham radio dealers, or that advertise in QST, CQ, etc.? Would appreciate any guidance or advice from someone who’s “been there”. Tnx and 73 Bill, k6mgo __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RF on pipes
Yes, as in coax for an example. when transmitting eg via coaxial cable which is properly installed the rf currents flow on the inside surface and not on the outside surface. I mention proper installation .. In which case steps are taken to keep the inside and outside surfaces separate (at rf). In your example, plain copper pipe wil have a total surface of the inside + outside. If you solder on caps then you will have just the outside. Jim VE3CI Sent from my iPod On Jul 9, 2011, at 1:02 PM, Clint clint.st...@sbcglobal.net wrote: This is a bit OT but it does concern my K3. Hopefully this will not open too big of a can-o-worms. As an experiment to try and achieve a very low impedance ground system, I am using 1 inch rigid copper tubing for my station and Vertical Antenna grounds and ½ copper refer tubing to tie together my ground rods and the mains ground. ANYWAY, I know that RF travels on the outside skin of a conductor. My question is: Does it also travel on the inside skin? In other words, would the impedance be the same on a round hollow tube as it would be if the tube was slit and laid out flat? Thanks, Clint KI6SSN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KPA500 Assy Man Rev B, and Programmer's Reference uploaded
The KPA500 does *not* forward serial data thru from the RS-232 (PC) to the RS-232 (XCVR) connector. The KPA500's back-panel XCVR RS-232 connector is used for those transceivers (primarily Kenwood) that provide band data through a serial connection, if you want the KPA500 to switch bands when the radio switches bands without transmitting. You really don't HAVE to provide transceiver band data at all, the KPA500 will switch very quickly on the first transmission on a new band. The first dit will be truncated. The KPA500's back-panel RS-232 PC connector is used for firmware load and for remote control of the amplifier. It does not need to be connected at all unless you need to do those functions at the moment. 73 de Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of M Cresap Sent: Saturday, July 09, 2011 2:04 PM To: Elecraft Reflector; e...@elecraft.com Subject: Re: [Elecraft] KPA500 Assy Man Rev B, and Programmer's Reference uploaded If I hook up the KPA500 RS-232 P line to the PC, and the KPA500 RS-232 X line to the K3, will commands from the PC to/from the K3 be successfully relayed through the KPA500? Any idea of latency? ( I haven't found a definitive statement one way or the other - it apprears that the command sets are independant). If not currently available, is it on the list of things to do? Thanks Mike, W3IP From: Eric Swartz - WA6HHQ, Elecraft We have placed a new version of the KPA500 Kit Assembly Manual (Rev B), and the KPA500 Programmer's Reference on the Manual Download Page at: http://www.elecraft.com/K2_Manual_Download_Page.htm 73, Eric WA6HHQ -- --- www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft SSB net announcement
The weekly Elecraft SSB net will meet tomorrow (7/10/11) at 1800Z on 14.3035 MHz +/- QRM. I will be net control from sunny Oregon, and we'll try relays to pull in the stations that I can't hear. See you there. 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] RF on pipes
A hollow conductor is not analogous to a coaxial cable. It has no center conductor. In the case of the hollow conductor (copper pipe), current will flow on the outside surface only. Skin effect still applies and works exactly as if the conductor were solid. 73- Nick, WA5BDU On 7/9/2011 4:51 PM, Jim Dunstan wrote: Yes, as in coax for an example. when transmitting eg via coaxial cable which is properly installed the rf currents flow on the inside surface and not on the outside surface. I mention proper installation .. In which case steps are taken to keep the inside and outside surfaces separate (at rf). In your example, plain copper pipe wil have a total surface of the inside + outside. If you solder on caps then you will have just the outside. Jim VE3CI Sent from my iPod __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] No line out when AGC is off
While operating RTTY, in order to prevent amplitude variations caused by static crashes, I like to turn off the AGC. It always worked with my Icom 746 and I didn't care if the audio was distorted. It provided an amplitude limited FM signal to my Hal DXP-38. When I turn off the AGC on the K3, with the RF gain set to max position. The signal disappears on the line out port. Using an X/Y oscilloscope, there appears to be noise but no signal.I can hear the very loud RTTY signal on speaker audio and it never cuts out. When I reduce the RF gain, the signal appears or sometimes during fading, the RTTY signal reappears on the X/Y scope. I’m using Firmware Rev. 4.36, and DSP 2.73 - Jack WA9FVP Willco Electronics -- View this message in context: http://elecraft.365791.n2.nabble.com/No-line-out-when-AGC-is-off-tp6566530p6566530.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Firmware rev. 4.39-S-meter light?
The version I found is from 2007 and just has Icom and Yaseu settings. I would to try this so if anyone figures it out please post how you did it. 73 Bill NZ0T -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Firmware-rev-4-39-New-main-sub-AF-mixer-settings-high-res-S-meter-read-command-etc-tp6554895p6566547.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] No line out when AGC is off
Jack, It is only a quick guess, but I would think you might want to check the setting for the AF Limiter - that is active when AGC is off, by default. 73, Don W3FPR On 7/9/2011 6:44 PM, wa9fvp wrote: While operating RTTY, in order to prevent amplitude variations caused by static crashes, I like to turn off the AGC. It always worked with my Icom 746 and I didn't care if the audio was distorted. It provided an amplitude limited FM signal to my Hal DXP-38. When I turn off the AGC on the K3, with the RF gain set to max position. The signal disappears on the line out port. Using an X/Y oscilloscope, there appears to be noise but no signal.I can hear the very loud RTTY signal on speaker audio and it never cuts out. When I reduce the RF gain, the signal appears or sometimes during fading, the RTTY signal reappears on the X/Y scope. I’m using Firmware Rev. 4.36, and DSP 2.73 te.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft CW Net Announcement
Good Evening, The weather has been quite changeable this week. High temperatures in the mid 70s, then the mid 50s, and now back in the mid 60s. Cloudy and cold with some rain to sunny and rather warm (apologies to those in warmer climes) in the mid 70s. But the changeable nature with the sun and warmth at times is a sign of the commencement of the dry season. Summer is starting very late this year; I hope it lasts until October. The sun brought out a large number of critters. Two days ago I saw a doe with two tiny fawns. A mile later another doe with a fawn. Then I saw a coyote and a covey of California quail. I have only seen one grouse thus far and it was a female ruffed grouse. No spruce grouse lately. I have one Steller's Jay which likes the sound of a fork on a plate. She enjoys leftover rice and the ends to my loaves of bread. Propagation on twenty meters was spotty this week. To the east it was poor but to California twenty meters worked rather well. Why has it become a local band? I heard a noise on my roof on Wednesday that sounded like a falling branch. The wind was high so I thought the tree was simply sloughing off dead limbs. When I went out for a look I saw the balun to my spare G5RV hung in a branch with the feedline lying on the roof. I have soldered that joint three times thus far and it looks like I get to practice soldering in the wind one more time. Luckily it is much warmer than the last time when there was snow on the roof. I should have used a torch that time but used my Weller soldering gun instead. I may need to drop that antenna for a more thorough refit. If anyone is interested in acting as a relay station on either net please email me. I will turn the net over to you for a few minutes so you can call areas in my skip zone. It sure would prove helpful to those I cannot reach directly. Please join us tomorrow afternoon and evening. 1) Hail signs (first letter or two of the suffix of your call) 2) NCS help (as well as QSP/QNP relay help) Sunday 2200z (Sunday 3 PM PDT) 14050 kHz Monday z (Sunday 5 PM PDT) 7045 kHz Stay well, Kevin. KD5ONS - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Headphones
Hi Bill I have been a long time user of a pair of Yaesu YH-77STA headphones. They provide more volume than the various other Sony and Heil headphones that I have and they are very comfortable to wear. 73 Barry VK2BJ On 9 July 2011 21:17, Bill Ross k6...@verizon.net wrote: Because of a hearing loss, (I wear hearing aids) I find that wearing headphones with the K3 (and another radios) works better for me. However, I have noticed that I get more volume out of the built-in speaker than the various headsets I have. With the headsets on, I find I am running the volume control just about at max most of the time, with RF gain also at max. One of the headsets I use, is an old RS “HI-FI” pair that cost $40. way back when, and yet, are less sensitive than my Sony ear buds. Also, for some reason, the RS headset must have a low freq. cutoff near the 600 Hz side tone, as I get more of a “thump” than a sine wave tone out of them. The Sony ear buds, work better, (more volume than the RS ones, even without my aids in) , and the side tone sounds better, than the RS “HI-FI” headset, but, still less than the built-in speaker. Does anyone have any experience with the “communications type headphones sold by AES and other ham radio dealers, or that advertise in QST, CQ, etc.? Would appreciate any guidance or advice from someone who’s “been there”. Tnx and 73 Bill, k6mgo __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Headphones
Bill, I, too, am somewhat at a hearing deficit - loud tool die shop work, but not yet at the hearing aid stage. I know folks are going to say I am crazy, flame proof suit on, when I tell you that I use a set of Frisby (model FHP-100) headphones with my K3 and they work FANTASTIC!!. Best part is, they are cheap, I mean very cheap, I'm talking $10-$15 cheap! I bought 3 pair of them and unfortunately had to go to the second pair, as my youngest puppy snuck into the shack and decided to chew on the padded ear pieces. Now, I only run CW, so that might be the reason they work for me. I usually have the AF gain some where around the 9:00 position, and RF is adjusted according to the band, but never max. The headphones have a volume adjustment inline that I use rather than moving the AF gain. They also have a mike boom attached, and I have used it on 2 meter FM, with local folks telling me that I sound very natural. For what they cost, I would recommend you give them a try and if you don't like them you are not out much. Heck, you can contact me off line, and I'll buy them from you if you don't like them. You'll be out nothing other than the time trying them. Okay, enough said on this subject. Have a nice weekend. 73 de Jim - KE8G Flame proof suit off! - Original Message - From: Barry Simpson vk...@optusnet.com.au To: Bill Ross k6...@verizon.net Cc: elecraft@mailman.qth.net Sent: Saturday, July 09, 2011 8:33 PM Subject: Re: [Elecraft] Headphones Hi Bill I have been a long time user of a pair of Yaesu YH-77STA headphones. They provide more volume than the various other Sony and Heil headphones that I have and they are very comfortable to wear. 73 Barry VK2BJ On 9 July 2011 21:17, Bill Ross k6...@verizon.net wrote: Because of a hearing loss, (I wear hearing aids) I find that wearing headphones with the K3 (and another radios) works better for me. However, I have noticed that I get more volume out of the built-in speaker than the various headsets I have. With the headsets on, I find I am running the volume control just about at max most of the time, with RF gain also at max. One of the headsets I use, is an old RS “HI-FI” pair that cost $40. way back when, and yet, are less sensitive than my Sony ear buds. Also, for some reason, the RS headset must have a low freq. cutoff near the 600 Hz side tone, as I get more of a “thump” than a sine wave tone out of them. The Sony ear buds, work better, (more volume than the RS ones, even without my aids in) , and the side tone sounds better, than the RS “HI-FI” headset, but, still less than the built-in speaker. Does anyone have any experience with the “communications type headphones sold by AES and other ham radio dealers, or that advertise in QST, CQ, etc.? Would appreciate any guidance or advice from someone who’s “been there”. Tnx and 73 Bill, k6mgo __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Cascata: a portable waterfall display project
I've written a waterfall display program for the Arduino microcontroller and a 128x128 pixel display. You can build it yourself for about $80, or make a smaller version using smaller parts and put it in a box for use with your KX1, K2, or KX3. See it here: http://wa5znu.org/2011/07/cascata Leigh/WA5ZNU -- View this message in context: http://elecraft.365791.n2.nabble.com/Cascata-a-portable-waterfall-display-project-tp6566861p6566861.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K2 Internal Speaker versus Internal Battery
Just got done wiring up the speaker on the top cover and looked at the instructions for the internal battery kit and first thing instructed is to DISCONNECT the speaker. Unless I've missed it, nowwhere do the instructions indicate that the speaker is to be re-connected. If this is the case, it's a bummer. Advice from anyone? 73 mike-KB3QJA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 Internal Speaker versus Internal Battery
The instructions don't specifically say it, but it is supposed to be reconnected after installing the battery holder. Matthew N8OHU From: vicki glover glover3...@comcast.net To: elecraft@mailman.qth.net Sent: Saturday, July 9, 2011 10:41 PM Subject: [Elecraft] K2 Internal Speaker versus Internal Battery Just got done wiring up the speaker on the top cover and looked at the instructions for the internal battery kit and first thing instructed is to DISCONNECT the speaker. Unless I've missed it, nowwhere do the instructions indicate that the speaker is to be re-connected. If this is the case, it's a bummer. Advice from anyone? 73 mike-KB3QJA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K2 Internal Speaker versus Internal Battery
Mike, Logic should be inserted. The instructions do include a step to Reinstall the top and bottom covers on page 8. That would logically include plugging in the speaker, and if installed, the KAT2 and KIO2 as well before screwing the top cover in place. There are times when a few bit of logic must be inserted. Yes, if you want the speaker to work, logic says that you must plug it into the same place from which it was removed. 73, Don W3FPR On 7/9/2011 10:41 PM, vicki glover wrote: Just got done wiring up the speaker on the top cover and looked at the instructions for the internal battery kit and first thing instructed is to DISCONNECT the speaker. Unless I've missed it, nowwhere do the instructions indicate that the speaker is to be re-connected. If this is the case, it's a bummer. Advice from anyone? 73 mike-KB3QJA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] No line out when AGC is off
It didn't help - Jack WA9FVP Willco Electronics -- View this message in context: http://elecraft.365791.n2.nabble.com/No-line-out-when-AGC-is-off-tp6566530p6566932.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] No line out when AGC is off
What didn't help? A few explanatory words are usually required. A simple statement that it didn't work is never helpful and will not generate any additional assistance. 73, Don W3FPR On 7/9/2011 11:12 PM, wa9fvp wrote: It didn't help - Jack WA9FVP Willco Electronics -- View this message in context: http://elecraft.365791.n2.nabble.com/No-line-out-when-AGC-is-off-tp6566530p6566932.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT: morse keys , pricing
Just received my Elecraft HEXKEY this week. Using for first time on the IARU contest. It's great. Nice feel, workmanship and weight. Nice 'bang for the buck'. bill nr4c -Original Message- From: Bill W4ZV [mailto:btipp...@alum.mit.edu] Sent: Saturday, July 09, 2011 4:58 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] OT: morse keys , pricing Tony Estep wrote: and was reviewed in QST May 2010 along with the Begali Simplex, another top-of-the-line key. I also have a Begali Simplex Mono but much prefer the N3ZN ZN-SL (both are single levers). I'm upset with Begali because my paddle had a dissimilar metals problem with the contacts (a fundamental design flaw). Over time these acted as diodes and caused keying problems (and I certainly don't need any help in creating sending errors!) I contacted Begali numerous times about replacement contacts but never got so much as a reply to my emails. This problem has since been solved in production by using silver contacts but my Begali sits unused because I don't want to sell it as is and I have no way to fix it because of the poor customer service. Too bad they don't provide service like Elecraft! 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/OT-morse-keys-pricing-tp6561475p6566409 .html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
