Re: [Elecraft] Monitor switching between P3 SVGA output and second output from main computer
On Thu,7/2/2015 11:20 PM, Ray Benny wrote: but is there a better or easier way? Many newer monitors have multiple inputs -- Costco has been selling a 23-in Samsung that is nominally 14VDC but runs fine on 12VDC, draws less than 1A. It has one SVGA input and two HDMI inputs. I paid $170 plus tax. If your computer has no HDMI out, you can probably find an SVGA to HDMI converter. 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 Message delivered to arch...@mail-archive.com
[Elecraft] Monitor switching between P3 SVGA output and second output from main computer
I'm looking to switch my second monitor between two output sources. First is the P3, second is the cable from my main logging computer that I run DX Atlas from, My primary monitor is used for my logging program only. I do have some old manual switch boxes that switch data (DB9 connector) and another that switches the old parallel printer cables (Centronics). I can look on eBay to see if there are such mechanical switches for SVGA cables, but is there a better or easier way? Tnx & 73, Ray, N6VR -- __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Sub Rx RF Gain issue and TX sticking
You can easily check any of the four potentiometers (RF/AF gains) for discontinuities via a utility available from the K3's CONFIG menu: First, turn "TECH MD" ON Then, find the "SW TEST" option, rotate the VFO-A knob until you see "Scn Adc" on the display. Then, while observing the VFO-B area of the display, rotate your suspect RF gain control and you'll see the individual steps, which should change from 002 (fully CCW) through 240 (full CW). Turn it very slowly so that you can see individual steps, looking for any discontinuities. 73, Dale WA8SRA > The RF Gain control on the Sub RX acts weird. It will seem deaf until 3 > o'clock on the dial. Once past 3, the gain jumps up and then is linear > if you turn it down. This pattern will repeat if you turn off the Sub > Rx and turn it back on again. The main RX Rf Gain control is smooth and > linear all through the dial range. I have done the RX calibration > routine on both receivers. > > During Field Day, if I hit the Esc Key or the paddle to interrupt a CQ > (N1MM+) , my external keyer (MKUSB) would stop keying but the rig would > stay in transmit mode. Tapping the XMT button would put the rig back to > RX mode. > > Ideas? > > -- > Buck > k4ia K3 #101 > Honor Roll 333 > 8B DXCC > > __ > 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 > Message delivered to d...@lightstream.net > __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Sub Rx RF Gain issue and TX sticking
On 2015-07-02 2:06 PM, K4ia via Elecraft wrote: > The RF Gain control on the Sub RX acts weird. It will seem deaf > until 3 o'clock on the dial. Perform an RF Gain calibration using an XG2/XG3 and the automated procedure in the K3 Utility software. > During Field Day, if I hit the Esc Key or the paddle to interrupt a > CQ (N1MM+) , my external keyer (MKUSB) would stop keying but the rig > would stay in transmit mode. Make sure you *do not* enable *any* of the "PTT via Radio Command" option in the N1MM+ radio port dialogs. Limit PTT to hardware (RTS or Winkey PTT) sources. 73, ... Joe, W4TV On 2015-07-02 2:06 PM, K4ia via Elecraft wrote: The RF Gain control on the Sub RX acts weird. It will seem deaf until 3 o'clock on the dial. Once past 3, the gain jumps up and then is linear if you turn it down. This pattern will repeat if you turn off the Sub Rx and turn it back on again. The main RX Rf Gain control is smooth and linear all through the dial range. I have done the RX calibration routine on both receivers. During Field Day, if I hit the Esc Key or the paddle to interrupt a CQ (N1MM+) , my external keyer (MKUSB) would stop keying but the rig would stay in transmit mode. Tapping the XMT button would put the rig back to RX mode. Ideas? __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Mod Kit Shipping
You must have selected "US Post Office 1st Class [Small Parts, USA ONLY, 14 Oz Max.]" Each KBPF3MDKT is 8 ounces so when you added a second one, the order went over 14 ounces. You will have to select "US Post Office Priority Mail [USA, AFO, FPO, & Territories]" to get a reasonable shipping amount. Mike KI0HA On 7/2/2015 3:03 PM, James Wilson wrote: For the LF modification kit, KBPF3MDKT, USPS shipping for one is $3.80 I need two. USPS shipping for two is $999.00 Seems a bit excessive. :-) Jim - W4RKS __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K3BPFa Mod Kit
Try USPS Priority MailI came across the same thing a while back via UPS. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Mod Kit Shipping
Must be the holiday weekend :-) Phil W7OX On 7/2/15, 1:03 PM, James Wilson wrote: For the LF modification kit, KBPF3MDKT, USPS shipping for one is $3.80 I need two. USPS shipping for two is $999.00 Seems a bit excessive. :-) Jim - W4RKS __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Mod Kit Shipping
That $999 price is Elecraft web site code for, "This item can not be shipped by this method." 73 Bill AE6JV On 7/2/15 at 1:03 PM, w4rk...@gmail.com (James Wilson) wrote: > For the LF modification kit, KBPF3MDKT, USPS shipping > for one is $3.80 > > I need two. USPS shipping for two is $999.00 > > Seems a bit excessive. :-) --- Bill Frantz| I don't have high-speed | Periwinkle (408)356-8506 | internet. I have DSL.| 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032 __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Mod Kit Shipping
Jimjust order one,twice. Hi hi Harlan NC3C Sent from my Verizon Wireless 4G LTE smartphone Original message From: James Wilson Date: 07/02/2015 4:03 PM (GMT-05:00) To: Elecraft Subject: [Elecraft] K3 Mod Kit Shipping For the LF modification kit, KBPF3MDKT, USPS shipping for one is $3.80 I need two. USPS shipping for two is $999.00 Seems a bit excessive. :-) Jim - W4RKS __ 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 Message delivered to hsherr...@reagan.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 Message delivered to arch...@mail-archive.com
[Elecraft] K3 Mod Kit Shipping
For the LF modification kit, KBPF3MDKT, USPS shipping for one is $3.80 I need two. USPS shipping for two is $999.00 Seems a bit excessive. :-) Jim - W4RKS __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Help identifying this RFI
I had a very similar problem, also (very nearly) S9. I had narrowed down the general area, and actually found it at night. I could visibly see the arcing from an insulator. I called the power company with the pole number, and they fixed it 2 weeks later. Try searching at night using binoculars, looking at every piece of hardware on the poles, see if you can visibly identify the source. While I'm no expert, your youtube videos sure sound like power line arcing to me. Chris K1AY On Wed, Jul 1, 2015 at 10:40 PM, Wes (N7WS) wrote: > Thanks for the many replies. I'll try to address all of them in one > message. > > First, I agree that this sounds like a powerline problem. I've seen many > of them in my 57 years of hamming. What makes this different, and the > reason for my call for advice, is the periodic nature of the problem. > Actually, the problem is nearly continuous but is interrupted > periodically. When I first started paying attention to this, I saw that > the quiet periods were spaced about six minutes apart. This led me to > think there is a timer involved. Grow lamps sprung to mind, since the "wild > west" nature of this area makes that a distinct possibility. That said, my > understanding is that these are on for much longer times. > > Regrettably, it's also our time for thunderstorms so my antennas are often > disconnected so a good timeline is problematic. I do believe after some > more listening that the periodicity is less uniform than previously > believed. Maybe it's totally random. > > Some more data points: > > 1) I have opened the main breaker to my house and run the K3/Laptop on > battery power with no change. > > 2) To the best of my knowledge there are no electric fences here. > > 3) My immediate neighbor to the north happens to be a welder, but he's > not the culprit. He's put his wife to work and he plays. > > 4) The power feed to my house is underground. The nearest power pole is > ~450 feet away from my tower to my WSW. The power line runs N and S from > that point with another line intersecting at that pole and running to the > west. > > 5) To my north there are two E-W feeder lines tapped into the N-S line. > > 6) One supplies my immediate neighbor to the north (the welder) via a > pole mounted transformer. This is 350 feet due north of my tower. I've > strummed the guy wires to these poles without noting any change. > > 7) A second 1000 ft E-W line feeds another transformer that is 850 feet > NE of me. This transformer appears to have some oil leakage, but shaking > the H out of it via the guy wires makes no change. The power company guys > say it's OK. > > 8) Although we are entering our Arizona summer "rainy season", to date > I've recorded a couple of hundredths of an inch. The noise issue predates > this. Our power poles never swell, they just get skinnier and skinner. > Years ago the power company tried to fix some noise problems I was having > by replacing the plain staples that attach the ground wires to the poles > with barbed staples that wouldn't (so they thought) pull out. Furthermore, > the staples were copper plated and the ground wires are aluminum. > Eventually, the copper went away and now the staples are rusted steel. > > 9) My "sniffing receiver" is limited to 30 MHz but I have a lead to > someone with more appropriate equipment, as well as expertise. > > 10) The Elecrafter's will understand this, I have a new K3S almost ready > for delivery (credit card's been charged) it would be nice to be able to > hear something on it. > > > On 7/1/2015 3:31 PM, Wes (N7WS) wrote: > [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 > Message delivered to challi...@gmail.com > -- Life is like Linux - it never stands still. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Sub Rx RF Gain issue and TX sticking
Hi Buck, While the RF gain control results in digital advice being sent to the K3's CPU, it is not an encoder like some other controls on the front panel. This will not be a firmware issue. The RF and AF gain controls are dual potentiometers. A standard voltage is placed across the pot (the two ends of the resistance stripe) and the wiper voltage is connected to an analog-to-digital converter. The digital output is sent over a multiplexed digital line to the CPU. The trouble you quote is not likely to go away, because it probably occurs from a cracked resistance stripe and/or a bent wiper, usually caused by a blow to the potentiometer knob(s). You will need to replace the pot, or have it replaced by Elecraft. This is not one of those eensy-teensy, fly-spec SMT repairs, you can actually see everything without a magnifying glass. Most people handy at soldering small electronic parts can do this repair, though it does involve a lot of disassembly to remove the forward board from the case front panel to expose everything. Contact Elecraft for a how-to conversation, a decision, and a replacement component or an RMA to repair. 73, Guy K2AV On Thu, Jul 2, 2015 at 2:06 PM, K4ia via Elecraft wrote: > The RF Gain control on the Sub RX acts weird. It will seem deaf until 3 > o'clock on the dial. Once past 3, the gain jumps up and then is linear if > you turn it down. This pattern will repeat if you turn off the Sub Rx and > turn it back on again. The main RX Rf Gain control is smooth and linear > all through the dial range. I have done the RX calibration routine on > both receivers. > > During Field Day, if I hit the Esc Key or the paddle to interrupt a CQ > (N1MM+) , my external keyer (MKUSB) would stop keying but the rig would > stay in transmit mode. Tapping the XMT button would put the rig back to RX > mode. > > Ideas? > > -- > Buck > k4ia K3 #101 > Honor Roll 333 > 8B DXCC > > __ > 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 > Message delivered to k2av@gmail.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Heil HC-7 Dynamic Element with K3/0 Setp
Aha - two questions at once. My instruction manual says to tap [3]. " For the front-panel mic only, additional microphone gain can be enabled by tapping 3 . Use this only for very low-output mics. " I also tried 4,5, and 6 . . . I should have kept going :-) I asked Elecraft about this. Apparently it is an error corrected in the "errata" document. Sigh. Anyway, yes, with this boost function I can run the mic gain around 30 and even with FP.L selected. Thanks, Ken -Original Message- From: d...@lightstream.net [mailto:d...@lightstream.net] Sent: Thursday, July 02, 2015 12:24 PM To: Ken_ke2n Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Heil HC-7 Dynamic Element with K3/0 Setp Hello Ken, I use the Pro 7 w/ the HC7 element as well. Tapping the "7" key while in "MIC SEL" will bring in the extra preamp which in combination with FP.H will most likely be too much gain. If it is, try leaving the "7" preamp engaged but drop back to FP.L and see if that gives you enough gain. I would NOT suggest using both the "7" preamp and FP.H though. 73, Dale WA8SRA > I just got a pro 7 to use with my K3. > > Definitely sounds better with the high selection (FP.H not FP.L) and, > of course, no bias as this is a dynamic element - it will short > circuit the bias. > > The output of this element does indeed seem slightly low (compared > with > HC-4) but if you close-talk it (it's a boom mike after all) and use a > gain setting of about 40 (out of 60) I find there is enough to get 6 > bars ALC on voice peaks. There is lots of low-end response, so you > will want to play with the equalizer to get either rag chew or dx-test > response. > > It would be nice if the K3 had about 3 dB more audio gain ... the > manual says that if I tap [3] in the mic select menu there should be more gain. > But I get "N/A" ;-( > > Ken > > > > - > 73 > Ken > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Heil-HC-7-Dynamic-Element-with-K3 > -0-Setp-tp7596221p7604527.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 Message delivered to > d...@lightstream.net > __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] K3 Sub Rx RF Gain issue and TX sticking
The RF Gain control on the Sub RX acts weird. It will seem deaf until 3 o'clock on the dial. Once past 3, the gain jumps up and then is linear if you turn it down. This pattern will repeat if you turn off the Sub Rx and turn it back on again. The main RX Rf Gain control is smooth and linear all through the dial range. I have done the RX calibration routine on both receivers. During Field Day, if I hit the Esc Key or the paddle to interrupt a CQ (N1MM+) , my external keyer (MKUSB) would stop keying but the rig would stay in transmit mode. Tapping the XMT button would put the rig back to RX mode. Ideas? -- Buck k4ia K3 #101 Honor Roll 333 8B DXCC __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Help identifying this RFI
An arching transformer is just a spark gap transmitter with a super long antenna attached. Much lesser setups were used decades ago and provided global communications. Matt Zilmer wrote: That appears to be exactly what was happening. I assumed that conducted RFI is pretty well snubbed by whatever distribution transformers were in between. 73, matt W6NIA On Thu, 2 Jul 2015 09:34:28 -0700, you wrote: On Thu,7/2/2015 7:20 AM, Matt Zilmer wrote: In a staight line, this transformer problem was almost 1/2 mile away, and not even on the same distribution circuit we're on here. Remember that power lines RADIATE. Although I have no scientific evidence to back it up, I suspect that most noise we hear from power lines is the result of radiation of the noise current -- that is, the power wiring near the noise source acts as a transmitting antenna. 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 Message delivered to mzil...@roadrunner.com Matt Zilmer, W6NIA -- "Always store beer in a dark place." -R. Heinlein __ 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 Message delivered to bs...@k5dkz.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Help identifying this RFI
That appears to be exactly what was happening. I assumed that conducted RFI is pretty well snubbed by whatever distribution transformers were in between. 73, matt W6NIA On Thu, 2 Jul 2015 09:34:28 -0700, you wrote: >On Thu,7/2/2015 7:20 AM, Matt Zilmer wrote: >> In a staight line, this >> transformer problem was almost 1/2 mile away, and not even on the same >> distribution circuit we're on here. > >Remember that power lines RADIATE. Although I have no scientific >evidence to back it up, I suspect that most noise we hear from power >lines is the result of radiation of the noise current -- that is, the >power wiring near the noise source acts as a transmitting antenna. > >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 >Message delivered to mzil...@roadrunner.com Matt Zilmer, W6NIA -- "Always store beer in a dark place." -R. Heinlein __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Help identifying this RFI
On Thu,7/2/2015 7:20 AM, Matt Zilmer wrote: In a staight line, this transformer problem was almost 1/2 mile away, and not even on the same distribution circuit we're on here. Remember that power lines RADIATE. Although I have no scientific evidence to back it up, I suspect that most noise we hear from power lines is the result of radiation of the noise current -- that is, the power wiring near the noise source acts as a transmitting antenna. 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Heil HC-7 Dynamic Element with K3/0 Setp
Hello Ken, I use the Pro 7 w/ the HC7 element as well. Tapping the "7" key while in "MIC SEL" will bring in the extra preamp which in combination with FP.H will most likely be too much gain. If it is, try leaving the "7" preamp engaged but drop back to FP.L and see if that gives you enough gain. I would NOT suggest using both the "7" preamp and FP.H though. 73, Dale WA8SRA > I just got a pro 7 to use with my K3. > > Definitely sounds better with the high selection (FP.H not FP.L) and, of > course, no bias as this is a dynamic element - it will short circuit the > bias. > > The output of this element does indeed seem slightly low (compared with > HC-4) but if you close-talk it (it's a boom mike after all) and use a gain > setting of about 40 (out of 60) I find there is enough to get 6 bars ALC > on > voice peaks. There is lots of low-end response, so you will want to play > with the equalizer to get either rag chew or dx-test response. > > It would be nice if the K3 had about 3 dB more audio gain ... the manual > says that if I tap [3] in the mic select menu there should be more gain. > But I get "N/A" ;-( > > Ken > > > > - > 73 > Ken > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Heil-HC-7-Dynamic-Element-with-K3-0-Setp-tp7596221p7604527.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 > Message delivered to d...@lightstream.net > __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Help identifying this RFI
Wes, good luck with that. One more story that may be of benefit. But the summary is that such noise may be caused by a source on one of may drops from this branch circuit you're on. The source may even be on another distribution circuit, though I don't think this is likely. I had a timed problem like yours. Every day at 5PM +/- a few minutes, S9+20 dB arc noise would show up on 40 and 80m. Since I had a MARS net above 80m, I couldn't really do much with that noise level present. I scheduled one of the SCE (Edison) power quality staff to come out and see if it was something SCE could fix. Skipping several of his visits, he found an old 240 - 480 transformer that was on a daily timer. There *had* been a pump on its output but that was long gone and the output was arcing over at the secondary cabling. There is just enough ex-citrus land around here to have a few ages-old pieces of junk electrical equipment like that. The SCE guy disconnected the primary and the problem went away forever. In a staight line, this transformer problem was almost 1/2 mile away, and not even on the same distribution circuit we're on here. 73, matt W6NIA On Wed, 1 Jul 2015 21:19:05 -0700, you wrote: >Ref #7. If you are 100% sure the leaking pole pig is not the problem, then >search elsewhere. > >At a club station in Illinois, the pole pig was intermittent. Power company >did not believe it, as it was intermittent. > >One evening during club meeting (alcohol was involved) a 30-06 made the pole >peg 100% defective. Power company replaced it, and the noise was gone ever >since. > >Jim >W6AIM > > > >-Original Message- >From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wes >(N7WS) >Sent: Wednesday, July 1, 2015 7:41 PM >To: elecraft@mailman.qth.net; SADXA >Subject: Re: [Elecraft] Help identifying this RFI > >Thanks for the many replies. I'll try to address all of them in one >message. > >First, I agree that this sounds like a powerline problem. I've seen many of >them in my 57 years of hamming. What makes this different, and the reason >for my call for advice, is the periodic nature of the problem. Actually, >the problem is nearly continuous but is interrupted periodically. When I >first started paying attention to this, I saw that the quiet periods were >spaced about six minutes apart. This led me to think there is a timer >involved. Grow lamps sprung to mind, since the "wild west" nature of this >area makes that a distinct possibility. That said, my understanding is that >these are on for much longer times. > >Regrettably, it's also our time for thunderstorms so my antennas are often >disconnected so a good timeline is problematic. I do believe after some >more listening that the periodicity is less uniform than previously >believed. Maybe it's totally random. > >Some more data points: > >1) I have opened the main breaker to my house and run the K3/Laptop on >battery power with no change. > >2) To the best of my knowledge there are no electric fences here. > >3) My immediate neighbor to the north happens to be a welder, but he's not >the culprit. He's put his wife to work and he plays. > >4) The power feed to my house is underground. The nearest power pole is >~450 feet away from my tower to my WSW. The power line runs N and S from >that point with another line intersecting at that pole and running to the >west. > >5) To my north there are two E-W feeder lines tapped into the N-S line. > >6) One supplies my immediate neighbor to the north (the welder) via a pole >mounted transformer. This is 350 feet due north of my tower. I've strummed >the guy wires to these poles without noting any change. > >7) A second 1000 ft E-W line feeds another transformer that is 850 feet NE >of me. This transformer appears to have some oil leakage, but shaking the H >out of it via the guy wires makes no change. The power company guys say >it's OK. > >8) Although we are entering our Arizona summer "rainy season", to date I've >recorded a couple of hundredths of an inch. The noise issue predates this. >Our power poles never swell, they just get skinnier and skinner. Years ago >the power company tried to fix some noise problems I was having by replacing >the plain staples that attach the ground wires to the poles with barbed >staples that wouldn't (so they thought) pull out. Furthermore, the staples >were copper plated and the ground wires are aluminum. Eventually, the >copper went away and now the staples are rusted steel. > >9) My "sniffing receiver" is limited to 30 MHz but I have a lead to someone >with more appropriate equipment, as well as expertise. > >10) The Elecrafter's will understand this, I have a new K3S almost ready >for delivery (credit card's been charged) it would be nice to be able to >hear something on it. > > >On 7/1/2015 3:31 PM, Wes (N7WS) wrote: >[snip] >__ >Elecraft mailing list >Home: http://mailma
Re: [Elecraft] Heil HC-7 Dynamic Element with K3/0 Setp
I just got a pro 7 to use with my K3. Definitely sounds better with the high selection (FP.H not FP.L) and, of course, no bias as this is a dynamic element - it will short circuit the bias. The output of this element does indeed seem slightly low (compared with HC-4) but if you close-talk it (it's a boom mike after all) and use a gain setting of about 40 (out of 60) I find there is enough to get 6 bars ALC on voice peaks. There is lots of low-end response, so you will want to play with the equalizer to get either rag chew or dx-test response. It would be nice if the K3 had about 3 dB more audio gain ... the manual says that if I tap [3] in the mic select menu there should be more gain. But I get "N/A" ;-( Ken - 73 Ken -- View this message in context: http://elecraft.365791.n2.nabble.com/Heil-HC-7-Dynamic-Element-with-K3-0-Setp-tp7596221p7604527.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 FD report in high RF (K3 vs Flex 6xxx)
Hello Matt, Wow, with those power levels and a 20 ft spacing between 3 el yagis, you are "cruisin' for a bruisin'". I made some measurements at my home station with two K3s on ten meters feeding different antennas. The antennas were 300 ft apart. I aligned the two yagis to face each other and saw only 17 dB of isolation. One of my K3's was hooked to a 1500 watt amp. With the antennas aimed at each other, there would be 30 watts coming down the feedline of K3 #2! Now my yagis were bigger than 3 elements: I had 5 and 6 element HB beams, but the problem is lack of isolation between any directional antenna. A few dB makes little difference. I still have not solved the in band overload problem entirely. 1500 watts is a lot of power. Cross polarization is a good way to go. Make one antenna vertically polarized and pick up a bit over 20 dB. The other technique is to avoid aiming antennas in directions that aggravate the problem. I think you would want 60 dB of rig to rig isolation with a legal limit amplifier for really good results. Having antennas at differing heights, cross polarized, and widely separated, can get you close, but I am afraid that boresighted antennas will still cause problems at 1500 watts. QRP looks better and better!! Dave K1WHS - Original Message - From: "Matt Z via Elecraft" To: Sent: Thursday, July 02, 2015 4:33 AM Subject: [Elecraft] K3 FD report in high RF (K3 vs Flex 6xxx) KL7AA had two elecrafts at FD, a KX3 for SSB and a K3 for CW, and interference was a definitely noticed. Each rig was wired to separate 3 element stepIRs, about 20 feet apart. One rig used the elecraft 500w amp and one used a 1.5kw amp. The two elecrafts could not operate on the same band at all. Maybe it was something with the setup. Date: Wed, 1 Jul 2015 12:43:16 -0400From: Guy Olinger K2AV To: N1EU Cc: Elecraft Reflector Subject: Re: [Elecraft] K3 FD report in high RF (K3 vs Flex 6xxx)Message-ID: Content-Type: text/plain; charset=UTF-8 On Wed, Jul 1, 2015 at 8:34 AM, N1EU wrote: The Flex ops should have dialed in a little front-end attenuation to> alleviate the ADC overload problem.> Understand the sentiment, but more attenuation is operationallycontra-indicated if the signals you're trying to work are weak due totemporary emergency antennas and QRP. Part of emergency preparedness is understanding various rigsnon-prejudicially for their various strengths and weaknesses and choosingrigs for strengths and avoiding rigs for weakness as those apply to thespecifics of an application. These days weak signals and close multiple transceivers call for the likesof K3's. At N4C field day we frequently had a CW station and SSB station on the sameband with no interference, and actually without being aware of each other.No noise, no anything. I know what a K3's hardware AGC kick-in sounds likeand that was also absent. This has been our experience for five or sixfield days now, and together with the small light size and portability,makes the K3 a top pick for FD. Not because of Koolaid, but because ofproven suitability to the application. I'm waiting to hear about KX3's for FD, especially battery operation, longa specific niche for K2's. We did not have a K3S or K3 with KSYN3A for evaluation. We have a standingquestion of whether K3S/upgraded K3, with some horizontal separation, willbe able to operate a few KHz away from each other on the same band/modesegment, e.g. the 40 CW station, and the GOTA station on 40 CW at the sametime. Perhaps next year we will find out. N4C operated at the Grey Goose Farm near Creedmore, NC. The group was alarge portion of the North Carolina East chapter of the Potomac ValleyRadio Club. This group contains a significant supply of K3 owners, whoregularly bring K3's to FD and multi-op contest events. For themportability and immunity to high RF environments are top-of-the-listreasons for purchasing K3's as opposed to other choices, easily serving FDstyle applications. At NY4A, also primarily manned by PVRC NC East members, going back pre-K3the FT1000MP was the main rig, which had gradually replaced all thestalwart Japanese rigs of prior years. For some time the MP was the onlyrig seen there. When the K3's and other rigs with new generation RX cameout, and the differences became known, The MP's were gradually replaced. Atally of the list of MP owning operators who had manned NY4A at some pointindicated that 11 MP's had been replaced by 14 K3's and one Orion. Of thatgroup, no one owns a Flex to this date. But neither would I consider any ofthem to be a "Flex-basher". I do know Flex owners, single home stations, who get outstandingperformance away from high-RF multi-TX operations. Various problems with CWand spectral purity seem to be a continuing manufacturer's emphasis forsolution. They're out there on a particular bleeding edge, with aparticular emphasis, with its own set of problems. We'll just see what theydo. Bash
Re: [Elecraft] OT setting your computer to NIST
On 15-06-27 02:00 PM, Harry Yingst wrote: I used a Raspberry Pi and made a NTP server to hook to my GPSDO I didn't really need one but I had the GPSDO with the NMEA and PPS output and a spare Raspberry Pi I also have a GPSDO that provides NMEA data and PPS output. It makes sense for one to provide data that can also be used when you need accurate time. They can also make for extremely accurate frequency sources for Elecraft radios that accept 10MHz reference signals from an external source. -- Cheers! Kevin. http://www.ve3syb.ca/ |"Nerds make the shiny things that distract Owner of Elecraft K2 #2172 | the mouth-breathers, and that's why we're | powerful!" #include | --Chris Hardwick __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 FD report in high RF (K3 vs Flex 6xxx)
with that sort of power level, you are looking at several devices failing, and making the system deaf as a post. KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them! From: David Gilbert To: elecraft@mailman.qth.net Sent: Thursday, July 2, 2015 3:46 AM Subject: Re: [Elecraft] K3 FD report in high RF (K3 vs Flex 6xxx) "Maybe it was something with the setup." That's an understatement. Running kilowatt-level power on the same band to two antennas only 20 feet apart is simply crazy. I don't know what input protection the KX3's have, but they almost certainly kicked in and being inherently non-linear they would have generated all sorts of high level trash on the front end. It would be interesting to see the math, but I think you're lucky you didn't blow the heck out of both front ends in spite of the protection. Dave AB7E On Jul 1, 2015, at 9:33 PM, Matt Z via Elecraft wrote: > KL7AA had two elecrafts at FD, a KX3 for SSB and a K3 for CW, and > interference was a definitely noticed. Each rig was wired to separate 3 > element stepIRs, about 20 feet apart. One rig used the elecraft 500w amp and > one used a 1.5kw amp. The two elecrafts could not operate on the same band > at all. Maybe it was something with the setup. __ 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 Message delivered to billblomg...@yahoo.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 FD report in high RF (K3 vs Flex 6xxx)
"Maybe it was something with the setup." That's an understatement. Running kilowatt-level power on the same band to two antennas only 20 feet apart is simply crazy. I don't know what input protection the KX3's have, but they almost certainly kicked in and being inherently non-linear they would have generated all sorts of high level trash on the front end. It would be interesting to see the math, but I think you're lucky you didn't blow the heck out of both front ends in spite of the protection. Dave AB7E On Jul 1, 2015, at 9:33 PM, Matt Z via Elecraft wrote: KL7AA had two elecrafts at FD, a KX3 for SSB and a K3 for CW, and interference was a definitely noticed. Each rig was wired to separate 3 element stepIRs, about 20 feet apart. One rig used the elecraft 500w amp and one used a 1.5kw amp. The two elecrafts could not operate on the same band at all. Maybe it was something with the setup. __ 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 Message delivered to arch...@mail-archive.com
