Re: [Elecraft] [K3] Elecraft Case Screws
This sounds like you are damaging the screws slightly when you loosen/ tighten them? Presumably, before they started rusting, the bare metal was shining through the black? If that is the case (sorry, no pun intended), then I suggest you don't have a good Philips #1 screwdriver and its 'caming' out a little! Although the paint has come off my holes in places, the screws are just fine. The screw should be a real snug fit on the driver, I can pick screws up with mine and it's not magnetic. 73 de M0XDF, K3 #174 -- The lame man who keeps the right road outstrips the runner who takes a wrong one. The more active and swift the latter is, the further he will go astray. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) On 26 May 2009, at 03:25, davidvk...@virginbroadband.com.au wrote: Timely thread, I was just thinking last night that I should replace mine, as they are all rusted. Ambient temp here varies from about 5ºC to 35ºC with potential high humidity, and we are only a couple of hundred metres from a salt water lake. If anyone comes up with a permanent fix, I'd be interested to hear of it (I'd prefer not to have to colour them in every-time I opened up the radio!). __ 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] Elecraft Case Screws
Hi, The case screws rusted as well in my K3. Elecraft has sent me replacement screws. The quality the case screws needed to be addressed. I trust good quality case screws would not cause Elecraft too much costs. 73 Johnny VR2XMC --- 2009年5月26日 星期二，davidvk...@virginbroadband.com.au davidvk...@virginbroadband.com.au 寫道﹕ 寄件人: davidvk...@virginbroadband.com.au davidvk...@virginbroadband.com.au 主題: [Elecraft] [K3] Elecraft Case Screws 收件人: elecraft@mailman.qth.net 日期: 2009年5月26日,星期二,上午10:25 Timely thread, I was just thinking last night that I should replace mine, as they are all rusted. Ambient temp here varies from about 5繙C to 35繙C with potential high humidity, and we are only a couple of hundred metres from a salt water lake. If anyone comes up with a permanent fix, I'd be interested to hear of it (I'd prefer not to have to colour them in every-time I opened up the radio!). Cheers David, VK2NU Yahoo!香港提供網上安全攻略，教你如何防範黑客! 請前往 http://hk.promo.yahoo.com/security/ 了解更多! __ 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] K3 Switching Power Supply
I've been using a SEC-1235 with my K3 for over a year now. Works great with no switching noise. I did modifiy the power supply by adding a PowerPole output connector pair on the rear. I also made a simple mod to the SEC-1235 fan circuitry so the fan runs slowly all the time, but can still go to high speed if it is ever necessary (info at www.ad5x.com in the Equipment Modification section). Phil - AD5X __ 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 Memory
Hi Gary, It is possible and called Channel hopping manual pg.40. Memories should be within 1 band and text-tags should start with a *. VFO A than rotates through and monitors those memories right away (without having to push MV) I think i'ts a bit cumbersome so I prefer using the bandswitch combined with the 4 quick-memos per band. It takes the K3 some time to switch all its filter/tuner relais and roofers, so I think it may never be a fast hopper (every upside has its downside) but the quick memos are very handy for fast acces to your favourites. btw The only stupid question is one that isn't asked :-) 73' Paul PD0PSB Is their any likelihood that all favourite frequencies will be accessible by, for example, rotating B vfo and sequencing thru them as stored memory channels. If this is available already I must have missed it. After the last question I asked on the reflector resulted in a large volume of hate mail I am not going to ask another one, I have better things to do with my time. -- View this message in context: http://n2.nabble.com/K3-Memory-tp2971881p2974388.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 Switching Power Supply
It would be useful for those who use switching power supplies to mention on what band(s) they've noted no switching noise with their particular choice. 73 - Steve WB6RSE __ 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 Switching Power Supply
I have been using the Alinco DM-330MV. Have worked all bands (just got a 12 m QSO today) that the K3 covers. No switching noise noted. Most operation has been 80, 40, 30 and 20 m. Enjoy having the meter and ability to vary the output voltage. Ty, W1TF K3 #696 __ 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] Power Required for PSK 31 and Olivia
Frank - No minimum power requirement for BPSK31. I've made QSO's with 1 watt using my Softrock SDR radio. Good propagation and a good antenna and patience help. GL KG4LCF, Larry __ 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] K3 USB CAT Interface
[Note: All of this applies to my K2 as well] FWIW: I'm trying to get N1MM Logger working with my K3. I have three USB-serial adapters [ two of which are just a cable with a USB-A on one end and a DB-9 on the other with a chip inside the DB-9], and one of which came from Elecraft and comes up as COM7 on my XP laptop. That one works just fine downloading firmware and controlling the K3 from the Utility. The other justacable adapter does not. Using one from Elecraft, I had no problem getting N1MM to talk to the K3, and extract the frequency. With K3 set for RTS=PTT and DTR=CW, the PTT also works just fine from N1MM. However, when I turn on CW, I get some sort of system error I've never seen before. This also happens with Writelog, only a different system error. I think both errors are coming from XP. I'm using the drivers that came with the adapters. The third adapter is an old Targus PA070 port replicator that came with an 11-yr old Gateway POJ laptop, also running XP ... when it will run at all. It provides a serial, parallel, PS2 mouse, keyboard, and two additional USB ports. It works just fine with the K3 and K2 for both N1MM and Writelog. Haven't had the chance to try it with the K3 Utility yet. I was surprised the KUSB from Elecraft doesn't work for the logger-rig interface. I guess all USB-Serial adapters are not created equal. If one doesn't work, try a different one. 73, Fred K6DGW - Northern California Contest Club - CU in the 2009 Cal QSO Party 3-4 Oct 2009 - 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
[Elecraft] Digital Filter Controls
I use the Digital Filter Width and center quite a bit in Digi Modes. Reducing the sensitivity of the BW center control would make operation a lot easier. When set to minimum-narrow BW the width control is much to sensitive. Well I do love my K3 anyway! 73 de Fred KC2QFR __ 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] Multicore solder specifications?
I have a pound spool of Mulicore solder I'm looking for info on! It smells odd when used and the flux doesn't work too well. Numbers on end of spool below: Sn63X32B, 21 swg guage then numbers: D973/815 Anybody have any clues? 73, Sandy W5TVW __ 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] K3 KXV3 fried external pre-amp?
This afternoon my K3 was on 6m SSB receive and burst into continuous transmit with a tone output, this wasn't from catching the Morse paddles as it was a continuous tone. The only way I could stop it was to turn it off. Unfortunately it seems to have fried my external 6m pre-amp which was connected to the RF in/out sockets on the KXV3. Has anyone else experienced this? 73 Dave, G4AON K3/100 #80 __ 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] Case screws rusting
In a recent message, g7vjr mich...@g7vjr.org wrote ... On returning to England I can see that the salty, humid air has done some damage to the K3, and caused the black case screws to rust. I cannot remember this ever being an issue with the K1 which uses similar screws, nor with the pan-head screws on the K2. The K1 is often used for portable backpack use where moisture could be an issue. This suggests that Elecraft could be supplying screws from an alternative vendor for the K3. As an alternative to the suggested stainless steel, are there any brass 100 degree countersunk screws available? If so, they could be less expensive. 73 -- David G4DMP Leeds, England, UK -- __ 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] K3 Case screws rusting
I also found all the countersunk case screws rusted after about 4 days in Sierra Leone last October - very humid country of course. I repainted them when I got home. Of more interest perhaps - I also did a careful check of the whole K3 to see if humidity had attacked it in other ways but all seems well and I have done over 25000 QSOs with it since then. 73 Nick G3RWF/5X1NH __ 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] K3 Switching Power Supply
OK - I've not heard any switching power supply noise from the SEC-1235 on any band from 160-6 meters. Phil - AD5X It would be useful for those who use switching power supplies to mention on what band(s) they've noted no switching noise with their particular choice. __ 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 USB CAT Interface
Fred, I use KUSB with K3 and have no trouble sending CW from N1MM using RTS and DTR from a WinXP laptop. Just letting you know that it *can* work. 73 -- Brian -- K1LI Snip: I was surprised the KUSB from Elecraft doesn't work for the logger-rig interface. I guess all USB-Serial adapters are not created equal. If one doesn't work, try a different one. __ 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] Elecraft Case Screws
When I see as many posts about a single subject as I see on this one, with as simple as answer as is available, IMHO it's time for Elecraft to step up, and use stainless steel screws. Not everyone operates in low humidity or air conditioned environments, and the cost, especially in the quantities Elecraft orders them, would be nominal to say the least. What about it, Eric? How about a K3SS (SS for stainless screws :-) ) model? 73, Steve NN4X (who may have a screw or two loose, but none are rusted...) On Tue, May 26, 2009 at 6:50 AM, Johnny Siu vr2...@yahoo.com.hk wrote: Hi, The case screws rusted as well in my K3. Elecraft has sent me replacement screws. [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] K3 Memory
I had missed that! 73 de M0XDF, K3 #174 -- Don't look forward to the day you stop suffering, because when it comes you'll know you're dead. -Tennessee Williams On 26 May 2009, at 13:26, pd0psb wrote: Hi Gary, It is possible and called Channel hopping manual pg.40. Memories should be within 1 band and text-tags should start with a *. VFO A than rotates through and monitors those memories right away (without having to push MV) I think i'ts a bit cumbersome so I prefer using the bandswitch combined with the 4 quick-memos per band. It takes the K3 some time to switch all its filter/tuner relais and roofers, so I think it may never be a fast hopper (every upside has its downside) but the quick memos are very handy for fast acces to your favourites. btw The only stupid question is one that isn't asked :-) 73' Paul PD0PSB Is their any likelihood that all favourite frequencies will be accessible by, for example, rotating B vfo and sequencing thru them as stored memory channels. If this is available already I must have missed it. After the last question I asked on the reflector resulted in a large volume of hate mail I am not going to ask another one, I have better things to do with my time. __ 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] Elecraft Case Screws
We're looking into this. 73, Wayne N6KR S Sacco wrote: What about it, Eric? How about a K3SS (SS for stainless screws :-) ) model? --- http://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
Re: [Elecraft] K3 VFO Tuning Rates
I would be happy to have an additional coarse tuning rate of 1 MHz-per-turn, no matter how it is implemented, either by spinning the knob faster or pushbutton selection. 73, Drew AF2Z On Mon, 25 May 2009 12:03:46 -0400 (EDT), Mike AC6JA wrote: I was wondering if the K3 VFO tuning rates increase the faster the VFO knob is spun? Is this a future firmware option if it doesn't? I have an ICOM 756PROIII and its VFO tuning rate increases with the speed of the knob, kinda nice! Thanks. Mike AC6JA __ 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] digout1
Correct, Van. The default for DIGOUT1 is floating (high resistance), or OFF. If turned ON for a given band/antenna, it will provide a low-Z path to ground to control an external switch. You may need an additional series resistor depending on the switch type. Among other possibilities, DIGOUT1 could be used to turn on an external preamp (like our PR6) or do supplemental antenna switching. 73, Wayne N6KR On May 25, 2009, at 9:30 AM, van fair wrote: Can anyone confirm that my understanding of DIGOUT1 is correct. I think that when turned on for each band by going to the band setting antenna to 1 or 2 and then turning it on or off, the following will be true. When Off for any band pin 11 will not go to ground with pin 5 and nothing will happen, When turned on for a band, when going to that band pin 11 will go to ground with pin 5 thereby providing a switch which can be used to cycle a transistor switch on and off depending on band setting. Am I correct and if not what does happen. Thanks Van W4GIW --- http://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] KX-1 wanted
I am looking for a KX-1 with tuner paddle. 73, Ron AE6RH __ 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] Multicore solder specifications?
I think I used that about 30 years ago. If it's the same as I'm remembering, it was an early attempt at a no-clean solder, ie it left very little residue and did not require cleaning. It didn't work for me and I sent it back. I think the flux wasn't aggressive enough for what we were soldering: I (my staff) would use a pound a week at the time. 73 David G3UNA - Original Message - From: Sandy ebj...@charter.net To: Glowbugs reflector glowb...@piobaire.mines.uidaho.edu; Elecraft List Elecraft@mailman.qth.net; boatanch...@mailman.qth.net Sent: Tuesday, May 26, 2009 5:38 PM Subject: [Elecraft] Multicore solder specifications? I have a pound spool of Mulicore solder I'm looking for info on! It smells odd when used and the flux doesn't work too well. Numbers on end of spool below: Sn63X32B, 21 swg guage then numbers: D973/815 Anybody have any clues? 73, Sandy W5TVW __ 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] [K3] Split RS232?
Thanks Howard - seems to work fine as I have ACLog and K3_EZ running and connected at the same time. Now I need to figure out why K3_EZ keeps messing the band map in the K3. Let's say your K3 has one 9pin RS232C port, and you want to connect it to your amplifier so the amplifier will always know the band/frequency the radio is set to. But wait - you also have the Palstar AT AUTO auto-tuner and you want to connect its RS232 port to the K3 so that the tuner will always retune every time you change the K3 frequency. But, that's not enough. You want to run Ham Radio Deluxe on the computer - and it needs to access the K3's RS232 port. What's a HAM to do? This free VSPE software can solve it for you. Let's say your computer has 3 COM ports: COM1 - connected to the Radio. COM2 - connected to the Apmplifier COM3 - connected to the Antenna Tuner Software 1: need to get access to COM1 (Radio) - Ham Radio Deluxe Software 2: need to get access to COM1 (Radio) - perhaps some other software. Amplifier and Antenna tuner devices must also be connected to the Radio. --- Right? 1) Create VSPE Splitter (Source port=COM1, Virtual port = COM9) 2) Create VSPE Serial Redirector (COM9 = COM2) : (Radio = Amplifier) 3) Create VSPE Serial Redirector (COM9 = COM3) : (Radio = Antenna Tuner) 4) Change Software 1 settings to use COM9 instead of COM1 5) Change Software 2 settings to use COM9 instead of COM1 Now the problem is solved - everything can share the COM1 going to the K3 radio. The only problem that may exist is that if several programs try to send data to the radio at the same moment, the bytes may get intermixed and if this occurs it will be an unintelligible mess to the radio. I have not tried this, so I do not know if it will or will not occur. Howard -- View this message in context: http://n2.nabble.com/Split-RS232--tp2949319p2976388.html Sent from the [K3] 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] voice heard on ext speaker using monitor
Hi Wade, While using the monitor feature to listen to my audio, I had my head phones on in transmit. The ext speaker doesn't cut out during transmit. Correct. If SPKR+PH is ON then the speaker is active when the headphones are active. Tx or Rx is not a condition of making the speaker active. This only seems to happen when using monitor and an external speaker. Correct. Has anyone had this problem??? I don't think this is a problem. It is how you have the radio set up. I have also heard 2 birdies on 20 meters anf 1 on 40 meters. I know I tightened all the screws during assembly for good grounds,but could have missed one The K3 is a very high-dynamic range, down-conversion superhet. It's nearly impossible to remove all birdies in such a design. But we think we did a pretty good job of it :) If you have any left (that you can hear with an antenna connected), you can remove them using the SIG RMV menu entry in the CONFIG menu. Below are the instructions for SIG RMV, from the latest owner's manual (not released yet). 73, Wayne N6KR * * * SPURIOUS SIGNAL REMOVAL: Fast-tuning “birdies” can in some cases be eliminated using the SIG RMV menu entry. We recommend that this be attempted only on birdies that can be heard with an antenna connected. (In SSB modes, simply leaving auto-notch on may be effective.) STEPS: (1) Set up the receiver for a desired band, and select the mode you’d normally use in the target band segment. Also set the DSP passband controls to the settings you use most often (e.g., NORMalized by holding NORM). (2) Locate a birdie to be removed. A birdie is considered “fast-tuning” if a small change in the SHIFT control (e.g. 50 Hz) moves the birdie about 400 Hz or more (with a narrow filter selected, this small shift may move it completely out of the passband). Such birdies result from UHF harmonics of the VFO. If you test a birdie using SHIFT, be sure to return SHIFT to its normal setting before continuing, because the value of SHIFT affects the birdie frequency. (3) Change the SIG RMV parameter to 0. This will save necessary information about the birdie, including the present VFO frequency, mode, filter, and SHIFT value. (4) Try different parameter values, starting with -1 or 1, to see if the birdie can be removed (shifted out of the audible passband). Use the smallest effective value. Important: If you change the parameter, exit the menu and see if the birdie has disappeared. Each SIG RMV value applies to a single 100-Hz VFO segment, e.g. from 28135.30to 28135.39, so you’ll have to tune slowly through that 100-Hz range using 10-Hz steps to make sure the birdie has been completely removed. You may hear a slight tuning artifact as you tune in and out of the mapped-out segment. Note: In many cases, you’ll need to apply SIG RMV to at least two adjacent 100-Hz VFO segments. Also, if you use more than one filter bandwidth or SHIFT setting in the present operating mode, you’ll probably need to map out the birdie more than one time. If you change your CW sidetone pitch, you may need to re-do the procedure. To undo SIG RMV: If you tapCLR while you’re in the SIG RMV menu entry, all birdie information for the present band will be permanently deleted. Limitations: SIG RMV applies only to CW/SSB/DATA modes, and only to the main receiver (at present). Do not remove birdies on transverter bands; instead, remove them on the I.F. band. On each band from 160-6 m, up to 60 birdies can be removed. But as mentioned above, each one may have to be mapped out from adjacent VFO segments as well as for different filter and SHIFT settings. So the number of birdies that can be completely removed is around 5 to 20 per band. * * * --- http://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
Re: [Elecraft] Power Required for PSK 31 and Olivia
Hope I can reply from digest mode... From: Frank MacDonell kd8...@gmail.com My K3 works well for CW at 5 watts but it seems I cannot get through to stations using PSK 31. Is there a minimum power level suggested for PSK31? Can you run QRP for Olivia? Thanks everybody! -- Frank KD8FIP I've noticed the same thing (with my K2). I can easily make QRP contacts in CW, but don't have the same result with PSK or Olivia. I fire up an old FT-757 for that purpose and run 30 watts or so, even though PSK is known for its low-power capability. My pure speculation is that the brighter trace from higher power attracts more replies, even though the weaker trace from QRP is perfectly readable. Parker WD8JOL __ 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] Case screws rusting
Hi All, Wayne says he's looking into this, which would be great! I'll tell you though, there is a big difference between just plain old humidity and salt air! I don't think backpacking in damp forests will even come close to causing the problem that just a little exposure to salt air will cause. And if the screws are rusting, you had better take a look-see inside as well. When we go to the Oregon coast during the summer, we are only a little more than a hundred yards from the water. I can almost watch my stuff rusting and corroding right in front of me! Seriously, I put up a Buddipole for a couple of days, and then took it down. I couldn't even unscrew the sections! The antenna mount on my vehicle needs constant treatment for rust and corrosion while I'm there. Even my tools, which are kept in a toolbox and inside the storage area of my motorhome, get rusty and corroded. You should see what salt air does to chrome! There is a product out there called KwikLube, and it's made by an outfit called Kwikee Products in Cottage Grove, Oregon. The guy who works on my motorhome up there swears by this stuff. There are other products out there, but he insists this stuff does better than any of them. It will inhibit and/or stop rust and corrosion. If you are going into a salt water environment, you might want to periodically daub a little of this on the screwheads. Problem is, you can really protect everything that probably needs protecting. I also would be inclined to pull the covers off afterward, and attend to any noticeable problems. I was born in Oregon, but lived away from the coast. Now I live in the desert. One of the big reasons the military chose Tucson for its big aircraft storage location (The Boneyard), is that they can even leave good planes out there for years without worrying a lick about rust or corrosion. So, this has been a whole new experience for me--keeping up with rust an corrosion in salt air environments--and it can darn near be a full time job! Dave W7AQK - Original Message - From: David Pratt da...@g4dmp.fsnet.co.uk To: g7vjr mich...@g7vjr.org Cc: elecraft@mailman.qth.net Sent: Tuesday, May 26, 2009 7:30 AM Subject: Re: [Elecraft] [K3] Case screws rusting In a recent message, g7vjr mich...@g7vjr.org wrote ... On returning to England I can see that the salty, humid air has done some damage to the K3, and caused the black case screws to rust. I cannot remember this ever being an issue with the K1 which uses similar screws, nor with the pan-head screws on the K2. The K1 is often used for portable backpack use where moisture could be an issue. This suggests that Elecraft could be supplying screws from an alternative vendor for the K3. As an alternative to the suggested stainless steel, are there any brass 100 degree countersunk screws available? If so, they could be less expensive. 73 -- David G4DMP Leeds, England, UK -- __ 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] [K3] Case screws rusting
Not being a metallurgist I have no business posting on this subject, other than in recalling past experiences with dissimilar metals. I specifically remember a stainless steel ball-mount quickly digesting an aluminum bumper in the presence of everyday moisture and air. For the price of a few screws from Elecraft (minimal if anything), spending research effort on a few rusty screws seems to me a substantial waste of everyone's time. 73, Kent Trimble, K9ZTV Jefferson City, MO __ 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] Fw: Re: Switching PS with the K3 - thoughts?
Willis 'Cookie' Cooke K5EWJ --- On Mon, 5/25/09, WILLIS COOKE wrco...@flash.net wrote: From: WILLIS COOKE wrco...@flash.net Subject: Re: [Elecraft] Switching PS with the K3 - thoughts? To: Don - K2PMC k2...@arrl.net Date: Monday, May 25, 2009, 7:50 PM I have been using a JTPS28 since Dec 2006 with my TS-850 then my K3. I often power receiver on two transceivers plus one on transmit with no problems. I love the unit except the meter pilot lamps are not as reliable as the rest. Willis 'Cookie' Cooke K5EWJ --- On Mon, 5/25/09, Don - K2PMC k2...@arrl.net wrote: From: Don - K2PMC k2...@arrl.net Subject: Re: [Elecraft] Switching PS with the K3 - thoughts? To: elecraft@mailman.qth.net Date: Monday, May 25, 2009, 7:33 PM I've beent using the Jetstream JTPS28 switching supply with my K3 since Feb '08 and it works like a charm. Weighs in at 4 pounds and never shows any signs of heating up. 73, Don K2PMC -- View this message in context: http://n2.nabble.com/Re%3A-Switching-PS-with-the-K3---thoughts--tp2967686p2972625.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] Curious Power Output on PSK
Hello All; I am a new K3/100 owner (sn 3045) and a relatively new ham. I come from an art background so please forgive my ignorance. I use my K3 mostly for soundcard digital and I've noticed something peculiar. Wayne suggests setting the soundcard's outputs (Master Wave) to 50% and use the Mic Gain to drive the output until either 4 bars of ALC show or the output power level is just below the target power output set on the K3. Since no ALC shows on my set-up anywhere near the point the target output is achieved, the latter procedure is applicable here. When I set the power on the K3 to 50 watts, I am looking for an output level of 40-45 watts. When I start out or switch to a new band, tune the band on my doublet or G5RV and key down, the Mic Gain will be at something like 43 (out of 60) to achieve 40-45 watts. So far so good. But slowly the output creeps up. I keep readjusting the Mic Gain downwards and it usually settles around 27 to where the 40-45 watts power out stays consistent. If I leave it at 27 and switch bands, 27 will produce less than 10 watts! Even if I switch back to the same band. The K3 will eventually level back out at 27. Last night I left the radio on all night after using it and when I came back to it this morning, the 27 level still worked perfectly right away. This seems odd to me. Is this to be expected? I wonder what is going on. 73 de Eric, KG6MZS __ 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] Curious Power Output on PSK
Hello Eric! I use my K3 mostly for soundcard digital and I've noticed something peculiar. Wayne suggests setting the soundcard's outputs (Master Wave) to 50% and use the Mic Gain to drive the output until either 4 bars of ALC show Correct. or the output power level is just below the target power output set on the K3. I think this is a misunderstanding. There must be at least 4 bars of ALC. On the K3, the ALC indicator is based on audio input, *not* RF feedback. If you can't get 4 bars of ALC, you need more audio from the computer, or more LINE IN gain. If you have less drive, you will get Tx Power creep, because the system Tx gain is set based on the audio level being at least 4 bars of ALC. Hope this is helpful to you. 73, Lyle KK7P __ 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] Case screws rusting
David W7AQK wrote: So, this has been a whole new experience for me--keeping up with rust an corrosion in salt air environments--and it can darn near be a full time job! --- That's why ships prefer bronze or brass for any exposed fittings. Stainless is only corrosion resistant. It is not corrosion proof. But salt water droplets in sufficient quantities to cause trouble don't travel far from the surf. I live on the Oregon coast a few hundred yards from the sea and have listen to surf pounding away 24/7 and smell the sea, but we have no corrosion issues, even outside, other than what one would expect anywhere metal is exposed to rain and fog. But then, in Oregon it's said that we don't tan, we rust. Ron AC7AC __ 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 VFO Tuning Rates
ac...@aol.com wrote: I was wondering if the K3 VFO tuning rates increase the faster the VFO knob is spun? Is this a future firmware option if it doesn't? I have an ICOM 756PROIII and its VFO tuning rate increases with the speed of the knob, kinda nice! I have a Sangean ATS 83 that does it (venerable mass market portable including shortwave and BFO). Not only is the idea obvious, but any patent that was obtained, in spite of the obviousness, will be long since expired. I was surprised that the K2 didn't do it and even more surprised that the K3 doesn't. Thanks. Mike AC6JA **An Excellent Credit Score is 750. See Yours in Just 2 Easy Steps! (http://pr.atwola.com/promoclk/100126575x1221823249x1201398664/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072hmpgID=62bcd=May ExcfooterNO62) -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm __ 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 VFO Tuning Rates
This is referred to as ballistic tuning. We experimented with it but rejected it when we did the K2 design. I haven't tried it on the K3 yet, but I've added it to my list. 73, Wayne N6KR On May 26, 2009, at 2:28 PM, David Woolley (E.L) wrote: ac...@aol.com wrote: I was wondering if the K3 VFO tuning rates increase the faster the VFO knob is spun? Is this a future firmware option if it doesn't? I have an ICOM 756PROIII and its VFO tuning rate increases with the speed of the knob, kinda nice! I have a Sangean ATS 83 that does it (venerable mass market portable including shortwave and BFO). Not only is the idea obvious, but any patent that was obtained, in spite of the obviousness, will be long since expired. I was surprised that the K2 didn't do it and even more surprised that the K3 doesn't. Thanks. Mike AC6JA **An Excellent Credit Score is 750. See Yours in Just 2 Easy Steps! (http://pr.atwola.com/promoclk/100126575x1221823249x1201398664/aol? redir=http://www.freecreditreport.com/pm/default.aspx? sc=668072hmpgID=62bcd=May ExcfooterNO62) -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm __ 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 --- http://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
Re: [Elecraft] Dipoles and Heat
Frank MacDonell wrote: I am using a center fed dipole in the attic for a K3. Does the antenna generate any measurable amount of heat during TX? Thanks. Yes. Subject to using suitable measuring instruments. If the antenna is a reasonable length, a lot more heat will be generated in the building structure (conceivably more than 50% of the power) than in the antenna wire. If the antenna is, in particular, electrically very short, a lot of the power could go to directly heating it. I will also depend on the size and construction of the wire. Why? If you are considering the total thermal load, I think the building structure dissipation will be the most important factor. -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm __ 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] [K3] Case screws rusting
Wayne .. It would help to know officially whether the Case Screws fit an 82-degree or 100-degree countersink hole. Both numbers have been indicated on the Reflector. 73 -* Dave, W9ZRX __ 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] Flat-head case screws
82. Wayne N6KR On May 26, 2009, at 2:50 PM, Dave Zeph wrote: Wayne .. It would help to know officially whether the Case Screws fit an 82-degree or 100-degree countersink hole. Both numbers have been indicated on the Reflector. --- http://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
Re: [Elecraft] Dipoles and Heat
Probably the same as as a 50 watt light bulb, but spread all over all the material in the attic. One could not measure it with any ordinary heat measuring devices. Quite a bit of the misdirected RF would be spread all over places other than the attic by the house wiring. 73, Guy. - Original Message - From: Frank MacDonell kd8...@gmail.com To: Elecraft elecraft@mailman.qth.net Sent: Monday, May 25, 2009 6:08 PM Subject: [Elecraft] Dipoles and Heat I am using a center fed dipole in the attic for a K3. Does the antenna generate any measurable amount of heat during TX? Thanks. -- Frank KD8FIP __ 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] Dipoles and Heat
On Tue, 26 May 2009 18:06:03 -0400, Guy Olinger, K2AV wrote: Probably the same as as a 50 watt light bulb, This seems wildly pessimistic. I'd guess no more than a dB or so of dissipation. A typical dipole near resonance looks like about 70 ohms, nearly all of which is a resistance that represents RADIATED power, with the rest being wire resistance. So lets say that some of that power causes current flow in nearby conductive objects. That current will be small unless those objects are near resonance, and whatever the current, it will cause more re-radiation than dissipation, because those objects have radiation resistance too. 73, Jim K9YC __ 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] K144XV 2M Module and W2 Wattmeter on Web Order Form
The K144XV 2M Module for the K3 and the W2 HF and VHF/UHF Wattmeter are now on the Elecraft Web order form. (The first order came in less than 5 minutes after we uploaded it. Guess they were watching!) One note: For the K144XV, please be sure to check the box that tells us if you have a K3/10 or K3/100. We ship a different rear blank panel or fan panel depending on which it is. (The antenna connector for the K144XV mounts in a new replacement rear panel.) Order form: http://www.elecraft.com/elecraft_prod_list.htm K144XV preliminary data sheet: http://www.elecraft.com/manual/K144XV%20Data%20Sheet%20rev%204sm.pdf or: http://snipurl.com/k144xv W2 preliminary data sheet: http://www.elecraft.com/manual/W2%20Data%20Sheet%20rev%204sm.pdf or: http://snipurl.com/elecraftw2 73, Eric WA6HHQ Elecraft __ 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] K144XV 2M Module and W2 Wattmeter on Web Order Form
Also, please do not forget to select at least one directional coupler for the W2, which is part of the base W2 price. The W2 supports up to two directional couplers. 73, Eric Eric Swartz - WA6HHQ, Elecraft wrote: The K144XV 2M Module for the K3 and the W2 HF and VHF/UHF Wattmeter are now on the Elecraft Web order form. (The first order came in less than 5 minutes after we uploaded it. Guess they were watching!) One note: For the K144XV, please be sure to check the box that tells us if you have a K3/10 or K3/100. We ship a different rear blank panel or fan panel depending on which it is. (The antenna connector for the K144XV mounts in a new replacement rear panel.) Order form: http://www.elecraft.com/elecraft_prod_list.htm K144XV preliminary data sheet: http://www.elecraft.com/manual/K144XV%20Data%20Sheet%20rev%204sm.pdf or: http://snipurl.com/k144xv W2 preliminary data sheet: http://www.elecraft.com/manual/W2%20Data%20Sheet%20rev%204sm.pdf or: http://snipurl.com/elecraftw2 73, Eric WA6HHQ Elecraft __ 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] Dipoles and Heat
Assuming the heat question was from a safety standpoint, I'd be more concerned with corona discharge than heat. Many attic antennas have very limited attention paid to insulating the high-impedance points, assuming the dry wood rafters are adequate. There are been reports of fires caused by just such assumptions where the high impedance end of the wire was near dust and other combustible materials. Ron AC7AC __ 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] K3 - 2 meters and MARS/CAP
I just ordered the 2 meter option and the new wattmeter. On the VHF module, will it be able to work on MARS/CAP frequencies and/or RX outside the ham band? Just curious since the K3 is slowly replacing almost all the other radios in my radio room as more features and options get added. Th3 K3 seems to do almost everything. I hunt down DX when I'm in the mood, talk with friends on 160 meters, but mostly work my 6 meter repeater on the main VFO and listen to 910 KNEW on the sub receiver. 73 de Josh K6ZRX __ 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 VFO Tuning Rates
Wayne, I have that ballistic tuning on my Yaesu FT-847 and find it cumbersome to use. It may be that I am just not used to it (I use my K2 and K3 more often, but for right now, operating with a ballistic tuning know is *not* one of the skills I want to have to learn. I am quite happy with the RATE button on the K3. 73, Don W3FPR wayne burdick wrote: This is referred to as ballistic tuning. We experimented with it but rejected it when we did the K2 design. I haven't tried it on the K3 yet, but I've added it to my list. 73, Wayne N6KR On May 26, 2009, at 2:28 PM, David Woolley (E.L) wrote: ac...@aol.com wrote: I was wondering if the K3 VFO tuning rates increase the faster the VFO knob is spun? Is this a future firmware option if it doesn't? I have an ICOM 756PROIII and its VFO tuning rate increases with the speed of the knob, kinda nice! __ 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 VFO Tuning Rates
A ballistic tuning rate on my K3 would be below the bottom of my wish list. (:-)) It's faster to use the FREQ ENT method, if at all. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ 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 - 2 meters and MARS/CAP
Not currently. It covers 144-148 MHz, all modes. What frequencies ranges are needed for 2M MARS/CAP? 73, Eric WA6HHQ J. Heide wrote: I just ordered the 2 meter option and the new wattmeter. On the VHF module, will it be able to work on MARS/CAP frequencies and/or RX outside the ham band? Just curious since the K3 is slowly replacing almost all the other radios in my radio room as more features and options get added. Th3 K3 seems to do almost everything. I hunt down DX when I'm in the mood, talk with friends on 160 meters, but mostly work my 6 meter repeater on the main VFO and listen to 910 KNEW on the sub receiver. 73 de Josh K6ZRX __ 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] K144XV 2M Module and W2 Wattmeter on Web Order Form
Can the K144XV be installed sans sub rx? It kinda looks like it mounts to the top of the sub rx. Deeply apologize if this has already been answered and I've missed it. On Tue, 2009-05-26 at 16:51 -0700, Eric Swartz - WA6HHQ, Elecraft wrote: The K144XV 2M Module for the K3 and the W2 HF and VHF/UHF Wattmeter are now on the Elecraft Web order form. (The first order came in less than 5 minutes after we uploaded it. Guess they were watching!) One note: For the K144XV, please be sure to check the box that tells us if you have a K3/10 or K3/100. We ship a different rear blank panel or fan panel depending on which it is. (The antenna connector for the K144XV mounts in a new replacement rear panel.) Order form: http://www.elecraft.com/elecraft_prod_list.htm K144XV preliminary data sheet: http://www.elecraft.com/manual/K144XV%20Data%20Sheet%20rev%204sm.pdf or: http://snipurl.com/k144xv W2 preliminary data sheet: http://www.elecraft.com/manual/W2%20Data%20Sheet%20rev%204sm.pdf or: http://snipurl.com/elecraftw2 73, Eric WA6HHQ Elecraft __ 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] K144XV 2M Module and W2 Wattmeter on Web Order Form
Can the K144XV be installed sans sub rx? Yes. The sub Rx is not a requirement for the K144XV, but it will take advantage of it if present. 73, Lyle KK7P __ 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] K144XV 2M Module and W2 Wattmeter on Web Order Form
Yes - It has its own mounting bracket to the side of the K3 and can be installed without or with the KRX3 sub rx. (You get a new K3 left side panel with the new mounting holes.) It actually sits a little above the sub RX and does not contact it. The K144XV and KRX3 are totally independent mechanically. 73, Eric WA6HHQ Brett Howard wrote: Can the K144XV be installed sans sub rx? It kinda looks like it mounts to the top of the sub rx. Deeply apologize if this has already been answered and I've missed it. __ 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] model # for the Radio Shack 35 amp sw/ps
I read the eariler info on this ps. I'd like to look it up on the radio shack website. What is the model #,etcthx and 73, Wade w7ute __ 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] Dipoles and Heat
The loss will be from dielectric loss, especially with asphalt shingles above. For RF loss purposes, not much difference between layered asphalt shingles and an inch, half inch, of dirt. Plenty lossy. Lay a dipole on an asphalt roof and explain the detuning and the widening of the SWR curve. 73, Guy - Original Message - From: Jim Brown j...@audiosystemsgroup.com To: Elecraft elecraft@mailman.qth.net Sent: Tuesday, May 26, 2009 7:08 PM Subject: Re: [Elecraft] Dipoles and Heat On Tue, 26 May 2009 18:06:03 -0400, Guy Olinger, K2AV wrote: Probably the same as as a 50 watt light bulb, This seems wildly pessimistic. I'd guess no more than a dB or so of dissipation. A typical dipole near resonance looks like about 70 ohms, nearly all of which is a resistance that represents RADIATED power, with the rest being wire resistance. So lets say that some of that power causes current flow in nearby conductive objects. That current will be small unless those objects are near resonance, and whatever the current, it will cause more re-radiation than dissipation, because those objects have radiation resistance too. 73, Jim K9YC __ 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] K3-Squelch Sub Pot
I just tried listening to a 6M FM net on my K3. I set SQ SUB to Sub Pot and noticed that the squelch opens when the sub rf/sql is adjusted full clockwise. Backing of slightly closes the squelch. Anyone else observe this. Also, sometimes it goes to 29 and other times to 30 when fully advanced. My firmware is 3.14. Jim - W6VAR -- View this message in context: http://n2.nabble.com/K3-Squelch-Sub-Pot-tp2978857p2978857.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 VFO Tuning Rates
Don, I agree wholeheartedly! Ballastic tuning is painful and detracts from the operating experience. Just one man's opinion. 73, Bob K3UL __ 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] Dipoles and Heat
I responded privately to the OP earlier in the day with the following. Since this thread has taken on new meaning. I'm posting it here: Frank, Maybe a little thought experiment would help. Consider that a K3/100 (I assume that is your worry) puts out at best 100 W and with most modes and operating styles, the average is much much less. If you were running a full-carrier mode like FM or RTTY, the duty cycle is 100% while transmitting, but assuming a 50-50 split between transmitting and listening, it's 50%. So in the worst case, let's say the average output is 50 W. On CW or SSB it will be even lower. Now this is at the output connector. With almost any run of cable, there will be some loss, but to be conservative, assume that it is zero. So at the antenna feedpoint the average power is 50 W. Hopefully, most of this is radiated and escapes the confines of your attic. In fact, a dipole is very nearly 100% efficient, but assume for a moment that it isn't and 50% of the available power is converted to heat. This means that 25 W is dissipated as heat, and the other 25 is radiated. Most of the heat will be in the neighborhood of the feedpoint because that is the area of higher current. However, it isn't a point loss but spread over some length of the wire. But let's pretend that all of the heat is generated in a very small spot on the wire and contemplate this. I like to sometimes turn these things into other questions, so I would ask myself, Self, if I was trying to heat up that wire to solder the transmission line to the wire, what is the likelihood of doing the job with a 25-W soldering iron? Pretty unlikely isn't it? And that is the worst case scenario. With a small amount of power distributed over any appreciable length of copper there simply isn't going to be any significant temperature rise. End Quote. Now to address David's remarks that follow: A lot of this is conjecture at this point since the size and composition of the attic, the electrical length of the dipole and the frequency are all unknowns at this point. However, using my backwards logic from above, consider actually trying to absorb the transmitter power in the building without it leaking to the outside. Having done measurements in anechoic chambers and free-space antenna ranges, I can tell you that it's difficult. Or try to imagine purposely attempting to heat the attic with a 50 W heating element. If it's a cold climate, it's not going to happen and if it's like where I live where last week the air temperature was 102F and the solar insolation on the roof was 1 KW/m^2, what effect would another 50 W make? Answer: none. This is a non-issue. Wes Stewart N7WS Frank MacDonell wrote: I am using a center fed dipole in the attic for a K3. Does the antenna generate any measurable amount of heat during TX? Thanks. Yes. Subject to using suitable measuring instruments. If the antenna is a reasonable length, a lot more heat will be generated in the building structure (conceivably more than 50% of the power) than in the antenna wire. If the antenna is, in particular, electrically very short, a lot of the power could go to directly heating it. I will also depend on the size and construction of the wire. Why? If you are considering the total thermal load, I think the building structure dissipation will be the most important factor. __ 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] model # for the Radio Shack 35 amp sw/ps
There is a 25 Amp Model: 22-510 / Catalog #: 22-510 Regards, 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] K3 Assembly Question
I'm considering ordering a K3 kit soon. I wonder how 'optional' these items listed in the assembly manual really are: Optional Equipment: 1. RF Power Meter with accurate readout from 1 mW to 5 watts, minimum. 2. Signal generator with calibrated 50 uV output at 20 or 40 meters. I have a Bird 43 wattmeter, but don't know of any element in the HF range that would read 1 mW. --Dave, W8OV __ 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 Assembly Question
You don't need a wattmeter. If you have one, you can set the K3 so that its internal watt meter matches yours (at 5 and/or 50 watts). You don't need a 1 mw wattmeter. You don't really need a signal generator. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave, W8OV Sent: Tuesday, May 26, 2009 8:48 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] K3 Assembly Question I'm considering ordering a K3 kit soon. I wonder how 'optional' these items listed in the assembly manual really are: Optional Equipment: 1. RF Power Meter with accurate readout from 1 mW to 5 watts, minimum. 2. Signal generator with calibrated 50 uV output at 20 or 40 meters. I have a Bird 43 wattmeter, but don't know of any element in the HF range that would read 1 mW. --Dave, W8OV __ 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] K3 VFO Tuning Rates (alternative: via FREQ ENT)
One idea already on the list is to have the VFO A and/or VFO B knobs be live after you tap FREQ ENT, so that instead of entering a numeric frequency, you could select the frequency in 1 MHz (VFO A) or 100 kHz (VFO B) steps. Tap FREQ ENT again to return to normal tuning. Wayne N6KR On May 26, 2009, at 5:30 PM, Ken Kopp wrote: A ballistic tuning rate on my K3 would be below the bottom of my wish list. (:-)) It's faster to use the FREQ ENT method, if at all. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 --- http://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
Re: [Elecraft] K3 Assembly Question
Dave, Those pieces of equipment are entirely optional. They are not required at all. In fact the 1 mW level is only used if you include the KXV3 option. The Power Meter can be used to obtain more accurate power calibration (but the K3 does a good job of it without that meter), and the signal generator is only used to obtain precise adjustment of the S-meter response - again, the stock S-meter response is adequate for most purposes - if you want a truly calibrated S-meter, then the generator can be used - the Elecraft XG2 will do that job nicely. 73, Don W3FPR Dave, W8OV wrote: I'm considering ordering a K3 kit soon. I wonder how 'optional' these items listed in the assembly manual really are: Optional Equipment: 1. RF Power Meter with accurate readout from 1 mW to 5 watts, minimum. 2. Signal generator with calibrated 50 uV output at 20 or 40 meters. I have a Bird 43 wattmeter, but don't know of any element in the HF range that would read 1 mW. --Dave, W8OV __ 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 VFO Tuning Rates (alternative: via FREQ ENT)
That would also drive me wild, but then I would not have to use it unless I selected it explicitly, so it is quite palatable to me. Remember the KISS principle - I object to my radio doing magic things for me. 73, Don W3FPR wayne burdick wrote: One idea already on the list is to have the VFO A and/or VFO B knobs be live after you tap FREQ ENT, so that instead of entering a numeric frequency, you could select the frequency in 1 MHz (VFO A) or 100 kHz (VFO B) steps. Tap FREQ ENT again to return to normal tuning. Wayne N6KR On May 26, 2009, at 5:30 PM, Ken Kopp wrote: A ballistic tuning rate on my K3 would be below the bottom of my wish list. (:-)) It's faster to use the FREQ ENT method, if at all. 73! Ken Kopp - K0PP elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 --- http://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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.339 / Virus Database: 270.12.40/2135 - Release Date: 05/26/09 08:53:00 __ 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
