Re: [Elecraft] K1 - VFO frequency range

ust though I'd bring that up since I had to do that fairly recently. > > > > Cameron - AF7DK/GM7LQR > > > > > -- > *From:* Elecraft on behalf of Mike > Morrow > *Sent:* Wednesday, May 24, 2017 9:04 AM > *To:* roney; elecraft@m

Re: [Elecraft] K1 - VFO frequency range

mailman.qth.net Subject: Re: [Elecraft] K1 - VFO frequency range I assume you have already calibrated the LCD display on each band using the OCF menue function. That makes the LCD indicate the actual transmitter output frequency, This display calibration for each band must be performed before adju

Re: [Elecraft] K1 - 2 band, is possible to add another 2 band PCB ?

ney >Sent: May 24, 2017 9:08 AM >To: elecraft@mailman.qth.net >Subject: [Elecraft] K1 - 2 band, is possible to add another 2 band PCB ? > >Hello, now that my Rig is ready, I want to ask something that wasn't clear >when I bought it. > >In Elecraft website, there is a &q

Re: [Elecraft] K1 - 2 band, is possible to add another 2 band PCB ?

Roney, When you change band boards, you will have to enter the menu and change the "b1" and "b2" parameters to match whichever bands you have on the board. b3 and b4 are only for the 4 band board which is no longer available. The 2 band board only allows "b1" and "b2". The K1 does remember the

Re: [Elecraft] K1 - VFO frequency range

has been around since 2000, which is how long I've had #175. What's the serial on your recent K1? It's still a magnificent radio. Mike / KK5F -Original Message- >From: roney >Sent: May 24, 2017 7:52 AM >To: elecraft@mailman.qth.net >Subject: [Elecraft] K1 - VFO

Re: [Elecraft] K1 - 2 band, is possible to add another 2 band PCB ?

All 4 bands cannot be installed at the same time. If you buy the second 2 band module for 20/40 you will have to remove the 80/15 module to install the 20/40. You will also need to reprogram B1 to 14 and B2 to 7. Every time you remove one band module and install another you should go through the me

[Elecraft] K1 - 2 band, is possible to add another 2 band PCB ?

Hello, now that my Rig is ready, I want to ask something that wasn't clear when I bought it. In Elecraft website, there is a "*KFL1-2 Additional 2 Band Module*"; I did not buy it, because I still don't know if it works. I already have B1 as 3.500

Re: [Elecraft] K1 - VFO frequency range

Roney, There is no adjustment for individual bands. If you have no other band boards, you can adjust the turns on L1 to bring the lower end of 80 meters up to 3.500 MHz. Normally, the VFO range is adjusted so that all bands will tune a bit below the low frequency limit. This compensates for

[Elecraft] K1 - VFO frequency range

Hello, I just finished all tests and adjustments in my K1. It works great. I have 2 filter band as 80m and 15m. It's transmitting and receiving very well. I followed all tests in: VFO Range Test (Page 38): VFO knob fully clockwise = 3.007 khz VFO knob fully counterclockwise = 3.091 khz VFO range

Re: [Elecraft] K1 and DMM resistance checks

Roney, You are a bit confusing when you say "no resistance". No resistance normally means zero ohms. It seems your DMM is responding normally to an infinite resistance. If the reading is the same as your DMM reads with nothing connected to the leads, that is a resistance higher than your DMM can

Re: [Elecraft] K1 and DMM resistance checks

Roney, If it is an auto-ranging meter, it is okay. 1 just means open, which is greater than 100k ohms. If it is not an auto-ranging meter, make sure you select a range that will measure at least up to 100k ohms. Again, 1 would be okay. 73, Art WB8ENE On Mon, May 22, 2017 at 9:13 AM, roney w

[Elecraft] K1 and DMM resistance checks

Hello, I'm just building my first K1. Everything is going right, I had already build the filter board, the front panel, and now in main board. I have a question about resistance checks using DMM: - Every time when the manual says that in some point the resistance must be > 100K, my multimeter sh

[Elecraft] K1 w/KBT1 battery pack

I would like to make use of this ample resource of ELECRAFT knowledgeable persons available , to clear up an issue of how to use my K1 w/ internal battery pack properly. ELECRAFT urges the practice of not charging the battery pack KBT1 while sitting in the K1 itself. I assume it is for th

Re: [Elecraft] K1 Question

11:23 PM, Thom wrote: Howdy All, Started building my Elecraft K1 this evening. All is going well, so far, with the KFL1-2 board. Just finished installing all components up to the toroids on the 40 meter band. I am confused about the 80 Khz or 150 Khz tuning range setting. Is this for 30 mete

[Elecraft] K1 Question

Howdy All, Started building my Elecraft K1 this evening. All is going well, so far, with the KFL1-2 board. Just finished installing all components up to the toroids on the 40 meter band. I am confused about the 80 Khz or 150 Khz tuning range setting. Is this for 30 meters only or for

[Elecraft] K1 tilt stand bail build info _ one more try sorry listers

Try this and hoping this paste from a different mail client works. www.qsl.net/ve3mcf/elecraft_reflect/K1_Tilt_Stand_Alternatives.tx http://www.qsl.net/ve3mcf/elecraft_reflect/K1_Tilt_Stand_Alternatives.txt _

[Elecraft] K1 stand tilt bail - you brew it as below

__ 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: htt

Re: [Elecraft] [K1] Building a 60m band module for the K1

Don, so the basics are fine for now and understood so far. Now the noodling will start. As antenna season is coming up it feels like a start of a new Elmer project with the K1. Collecting knowledge and parts during the summer and start in the fall. For the filter design I will use one of these

Re: [Elecraft] [K1] Building a 60m band module for the K1

Stef, You want the crystal frequency 8MHz greater than the *lowest* frequency you want to tune. If you want to put the band segment in the center of your K1 80kHz tuning range, your tuning would extend at 5.344kHz to 5.424kHz, so you would order a crystal at 13.344kHz. I believe the mixing sc

Re: [Elecraft] [K1] Building a 60m band module for the K1

Don, thanks a lot for your helpful advise. So the smartest way to begin would be to order a KFL1-2 with the 30/40m option. Or should I go for 80/40? I have the 4 band module built in now with 40/30/20/15. The crystal will be custom ordered at www.krystaly.cz Email: kryst...@krystaly.cz KRYS

Re: [Elecraft] [K1] Building a 60m band module for the K1

Stef, I have not done it, but I can explain how to do it. Start with a crystal that is 8MHz above the lowest frequency you wish to tune. Then tune the premixer bandpass filter to 3100kHz lower than your crystal frequency - I would start with the capacitor values from the RF bandpass filter for

[Elecraft] [K1] Building a 60m band module for the K1

Dear Gang, did anybody of you ever managed to bring the K1 succesfully to 60m? As the band (15KHz from 5.351.5 - 5.366.5 MHz) is now legal in Germany I am in the need of a 60m rig. So please let your thoughts roll out to the group. Thanks for your help. 72/73 de sTef DM5TU / VY1QRP D

[Elecraft] K1-4 plus extras for sale

I have for sale a K1-4 (40,30,20,17) including a K1-2 board (80,15), internal antenna tuner, tilt stand, and K1 backlight. All in excellent condition both electrically and cosmetically. $475 shipped to lower 48 states. Thanks, MyronK4YA __

Re: [Elecraft] K1 Front Panel Assembly: Potentiometer shaft doesn't fit

I found that a Straight Slot screwdriver works well and enlarging holes From: Don Wilhelm To: Brian Moran ; Elecraft Reflector Sent: Thursday, March 16, 2017 8:26 AM Subject: Re: [Elecraft] K1 Front Panel Assembly: Potentiometer shaft doesn't fit Brian, The hol

Re: [Elecraft] K1 Front Panel Assembly: Potentiometer shaft doesn't fit

Brian, The hole was "supposed" to have been enlarged at the factory. Since yours was not, it is easy to enlarge. Just take a slender knife blade and carve off a couple of 'slices' around the inside of the hole. The ones I have had to do take two 'slices'. 73, Don W3FPR On 3/16/2017 1:57 AM,

Re: [Elecraft] K1 Front Panel Assembly: Potentiometer shaft doesn't fit

Of course a rat tail file or tapered reamer is the usual way, but I bought a deburring tool at the hardware store. It's a tiny crescent-shaped knife with a handle that you put into a hole and rotate. You can hold it at an angle to remove burrs from drilling, or straight to enlarge a hole slightl

[Elecraft] K1 Front Panel Assembly: Potentiometer shaft doesn't fit

I'm in the middle of assembling a K1, and have gotten to the front panel final assembly. The Potentiometer (type labeled 1-2-3) that I have has a threaded shaft that is too large of diameter to fit the K1's front panel. What's the best way to enlarge the hole to preserve the nice new paint?Or i

[Elecraft] Elecraft K1-4 for sale

Hi- I have an excellent K1-4 for sale. It covers 40, 30, 20, 15 Meters. Has the built in automatic antenna tuner and noise blanker. Also comes with the original K1-2 band board that covers 40 and 20 with power cord. No scratches, non smoker, used only in shack. $415 shipped CONUS. In NH __

[Elecraft] For Sale Elecraft K1-4

I have for sale the above radio. If interested in details please contact me off list at w...@arrl.net Thanks, Lou - W6UR -- * ON THE AIR SINCE 1949 * --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ___

Re: [Elecraft] K1 Battery Power

Ted, The lower voltage of the battery pack is the reason. If you are using NiMH batteries, the voltage is likely about 9.6 volts, and may be even lower during transmit. 73, Don W3FPR On 12/20/2016 11:42 PM, Dauer, Edward wrote: Just added the battery option to a K1 and noticed something int

[Elecraft] K1 Battery Power

Just added the battery option to a K1 and noticed something interesting. When operating on battery power, no matter how the output power is set the actual power out is limited to about 2.0 watts. It would make sense if this were a battery power conservation strategy; but I couldn’t find anythi

[Elecraft] K1 for sale

Nice K1 with: KFL1-4 filter board (40m/30m/20m/15m), KAT1 tuner, KNB1 noise blanker, K1LCD back light, top cover with speaker, KTS1 tilt-up stand, power cable. $450. Free shipping CONUS. Carl Yaffey K8NU Recording studio. cyaffeyno_s...@gmail.com 614 268 6353, Columbus OH http://www.carl-

Re: [Elecraft] K1 Filter Board Issue

Jeremy, Yes, an RF probe would be useful to evaluate the health of the crystal for 40 meters. Since those crystals are reliable, I suspect that you have a problem with the Pre-Mixer Bandpass Filter. You need to have at least 200mV peak to peak signal (70 mV measured with an RF Probe) to prov

[Elecraft] K1 Filter Board Issue

Hello, I recently finished the receiver portion of my K1 (40m/20m). I successfully aligned the 20m filters, but on 40m there is very little noise, and the noise does not change when there is an antenna connected. However, I have received some very nice signals on 20m. I have inspected the

Re: [Elecraft] [K1] [KNB1] Noise blanker not detected (three dashes ---)

Yeah, I was afraid I might have to do that. Oh well, I guess I’ll go ahead and drop Support a few lines and see what they advise. Thanks everyone for your help! 73, Bogdan YO8SAW > On 28 Nov 2016, at 14:54, Don Wilhelm wrote: > > Bogdan, > > FB, I now see you did check all the paths, sorry,

Re: [Elecraft] [K1] [KNB1] Noise blanker not detected (three dashes ---)

Bogdan, FB, I now see you did check all the paths, sorry, but I was tired after 9 hours on the road! It sounds like you need to contact Elecraft support. You have indications of a faulty KNB2 firmware IC. 73, Don W3FPR On 11/28/2016 1:04 AM, Bogdan - Constantin Lazanu wrote: Thanks Don,

Re: [Elecraft] [K1] [KNB1] Noise blanker not detected (three dashes ---)

Thanks Don, but I have already done these checks and mentioned the results in my first post on this list. 73, Bogdan YO8SAW > On 28 Nov 2016, at 02:32, Don Wilhelm wrote: > > Bogdan, > > I just returned from Thanksgiving holiday/vacation and saw your post. > > The indication of "---" in the

Re: [Elecraft] [K1] [KNB1] Noise blanker not detected (three dashes ---)

Bogdan, I just returned from Thanksgiving holiday/vacation and saw your post. The indication of "---" in the menu entry indicates that the 6R/AUX signal line is not allowing the KNB1 firmware to communicate with the K1 main MCU. I would suggest you check the soldering of RF Board J1 pin 2 an

Re: [Elecraft] [K1] [KNB1] Noise blanker not detected (three dashes ---)

aft-boun...@mailman.qth.net] On Behalf Of Bogdan > - Constantin Lazanu > Sent: Saturday, November 26, 2016 2:54 PM > To: elecraft@mailman.qth.net > Subject: [Elecraft] [K1] [KNB1] Noise blanker not detected (three dashes ---) > > Hello, > > This is my first message to thi

Re: [Elecraft] [K1] [KNB1] Noise blanker not detected (three dashes ---)

- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bogdan - Constantin Lazanu Sent: Saturday, November 26, 2016 2:54 PM To: elecraft@mailman.qth.net Subject: [Elecraft] [K1] [KNB1] Noise blanker not detected (three dashes ---) Hello, This is my first message to this ma

[Elecraft] [K1] [KNB1] Noise blanker not detected (three dashes ---)

Hello, This is my first message to this mailing list, so please be gentle! During the summer and autumn I built my first ever kit: the K1-2 (#3449) + KAT1. Everything worked surprisingly well (being a first-timer and all), I never had any problems. Until now. It seems that I failed in my “buil

[Elecraft] K1 for sale

Elecraft K1 with 4-band module and original manual Available from an estate that I'm handling 73, Jan ~ contact off-list => k1nd at comcast dor net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecr

[Elecraft] K1 low power cabin radio

We have a off grid cabin that has a small solar system. When either myself or my daughter are up there, you have to go to the gate or highest point to get cell service. So since my daughter is a ham although she is learning code we wanted a way to communicate with each other when she is there. He

[Elecraft] K1 For Sale! -- HAS BEEN SOLD!

My K1, s/n 0867, has been sold. Thanks to all for your interest! Dick Phelps, K1SW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.

[Elecraft] K1 For Sale!

I have my carefully constructed K1, with the following features, for sale: . s/n 0867 . Four-band board (40, 30, 20 & 15 meters) with latest trimmer capacitor mods installed . Firmware 1.09E . Internal antenna tuner . Noise blanker . LCD backlig

[Elecraft] [K1] #3420 for sale

I have a K1, two band unit, built this year by Alan Price and aligned by Don Wilhelm. Used on less that 20 qso's. All options included. Spent $600 in parts plus the cost to build it. Can email or text images. Make offer off line. Ted, Stockton, CA. wp...@aol.com 209-601-5354. Upgrading. -- Vie

[Elecraft] K1 Enclosure

Does anyone have a complete K1 enclosure (panels, knobs, etc.) that they would sell? Maybe from a dead or dying K1? I have a complete K1 minus enclosure (long story) for which I need the requested parts. 73, Reuben WA4ZEN __ Elecraft mail

[Elecraft] K1 tilt stand bail- how to make

This is from my own personal 'wayback' records source not evident to me with short notice. Alt #2 - "The Never Fail Cheap & Dirty K1 Bail"; (with apologies to Tom, =N0SS, and his probe) Take a piece of 15" long by 3/32 - 1/8" diameter sol=id wire (a heavy duty coat hanger works great!). Slid

Re: [Elecraft] K1 Tilt Stand ???

Try LapWorks Laptop Legs. The grey ones are a perfect match. Alas, availability seems to be falling, and prices appear to be rapidly climbing -- I'm guessing they aren't being made anymore... - kb7psg On Sun, 31 Jul 2016, Doug Hensley wrote: Does anyone make a simple flip down

Re: [Elecraft] K1 Tilt Stand ???

When I owned a K1 my tilt stand was a length of 1" flat bar from Home depot bent in a U. It flipped up and just cleared the tuning knob to protect the front panel during transport. John K7JLT John K7JLT Doug Hensley wrote: >Does anyone make a simple flip down bail (wire stand support) for t

Re: [Elecraft] K1 Tilt Stand ???

Doug, None that I know of. If you have a bandsaw (or know someone who has one), I would cut a wedge from a 2x4 that is as long as the K1 is deep. That should be a better solution than a book. 73, Don W3FPR On 7/31/2016 11:38 AM, Doug Hensley wrote: Does anyone make a simple flip down bail (w

[Elecraft] K1 Tilt Stand ???

Does anyone make a simple flip down bail (wire stand support) for the K1 as is available for the K2 ? I'm continually tilting the K1 back using a book or similar to position the front panel for easier viewing. 1.25 to 1.5" tilt should work. TIA, Doug W5JV K1 007xx ___

[Elecraft] K1 For Sale

activations. I have all documents and manuals. There is no back light. Can be added. For Sale Elecraft K1 4 band plus extra 2 band module missing 20 m xtal) (20-40M) Professionally built. Ser. No 844. Includes the following: KTS1 wide range tild stand (no longer available from Elecraft) KFL1-4

[Elecraft] K1 four band for sale.

Elecraft K1 for Sale Radio works great. I am down sizing my shack getting ready to move to a small off grid cabin. I am selling this radio for $450. The radio includes the following options and features: K1-4 four band 5 watt CW Xcvr 15 / 20 / 30 / 40 KFL1-2 two band module 20 / 40 meter

[Elecraft] Fwd: Elecraft K1 for sale

Elecraft K1 QRP HF Transceiver - K1 Radio - 4 band board installed in radio (radio covers 40m, 30m, 20m, 17m) - Additional 2 band board (80m, 15m) - KAT1 Antenna Tuner - KNB1 Noise Blanker - Internal Battery Adapter - LCD Backlight - Tilt Stand See this URL for pictures

Re: [Elecraft] K1 E42 error msg

Rick, Yes, E42 says that the MCU is not detecting a signal from the VFO. You can try re-flowing the soldering in the VFO area. If that does not restore proper operation, then more in-depth troubleshooting is required. Try DC voltage checks at Q8 for starters - the drain should be at 6 volts,

[Elecraft] K1 E42 error msg

I have an older K1 that has been working fine but now i get an E42 error msg which the manual says is a vfo issue. Visual inspection show nothing obvious. has anyone had this problem before .i hope to save some time with any suggestions i can get here first. thanks Rick ...W4BDI -- View this m

[Elecraft] K1 - problem with KAT1 (Solved)

al builder nor the intermediate owners have experienced problems (or perhaps that's why it's been passed on!). 73, Ray / SM5XLP -Ursprungligt meddelande- Från: Don Wilhelm [mailto:donw...@embarqmail.com] Skickat: den 12 maj 2016 00:12 Till: Raymund Band; Elecraft@mailman.qth.net

Re: [Elecraft] K1 - problem with KAT1

Ray, I would be highly suspicious of a relay that is not working properly. Whether that is the result of a poorly or unsoldered connection or because the relay is really bad is to be determined. That relay just was not operated on the other bands, but it happened to try to be operated on 15 m

[Elecraft] K1 - problem with KAT1

I have just installed a KAT1 in a K1 with 4-bands filter board. The KAT1 bridge adjustment and power calibration were performed without difficulty. The K1 (serial number 25xx) has been used without any problems and the KAT1 has been used previously with a different 2-bands K1. Using Tune and te

Re: [Elecraft] K1 (still) a classic!

Ah, ok, thanks. I'll not worry about it then. I did locate a flat blade jewelers screwdriver in my parts box that fits and rotates them, so I think I'll be OK. Support said to be sure to obey the orientation with the flat side, which I'll certainly do. Sure hope this doesn't deep six the kit ever,

Re: [Elecraft] K1 (still) a classic!

Ok thanks for the info, Don. I've actually been having success with a slightly different method for the ones on the tops of the cans. What I do now is form the lead and put it in place through the grounding hole (a spare anti-stat foam pad under the RF board for them to stick into helps). Then, wit

Re: [Elecraft] K1 (still) a classic!

LS, Yes, the demise of available ceramic trimmers (original) and later the demise of the wide range blue trimmers (1 to 40pF) used in both the K1 4 band board and the K2 bandpass filters (and wattmeters) has cause quite a stir for Elecraft. The best trimmers now available have been supplied

Re: [Elecraft] K1 (still) a classic!

LS, There is a "secret" to soldering the grounding wires to the base of the crystals. First, use a screwdriver to form the wires up against the crystal bodies. Then run your soldering temperature up to 800 degF. Hold the flat of the iron against the crystal body on one side of the ground wire.

Re: [Elecraft] K1 (still) a classic!

Interesting... the bandpass filter trimmers in my latest K2 have changed, IMO, for the slightly worse in terms of quality. My first K2 (#6882 ) has nice well made looking trimmer caps in it, but 4 of the ones in the new kit are these barrel shaped ones that are kind of blah in terms of quality, and

Re: [Elecraft] K1 (still) a classic!

Now all you have to do is build a K2 hi hi... Already did, s/n 6424. Added KSB2, KPA100. Enjoy using it too :-) I also built K-FL2 for 80/17 n 12/10. Rarely used but ready if needed. I recall the parts at issue were the trimmer caps. 72, Curt KB5JO ___

Re: [Elecraft] K1 (still) a classic!

I think I recall reading here something about Elecraft could no longer obtain a key part for the 4 band board - a temperature stable trimmer cap perhaps? Steve aa8af > On Apr 3, 2016, at 9:15 PM, lstavenhagen wrote: > > Now all you have to do is build a K2 hi hi... BTW, do we know the reason th

Re: [Elecraft] K1 (still) a classic!

Now all you have to do is build a K2 hi hi... BTW, do we know the reason the 4 band module was discontinued on the K1? That was the only reason I didn't get one and went with another K2 in my current build. 2 bands was just slightly too few for me... 73, LS W5QD -- View this message in context:

Re: [Elecraft] K1 (still) a classic!

I have to agree. I have K1 #583. This is my favorite kit of all time. Radio works perfectly, just so much fun. Mike, AC4UR http://sunbyrdpress.blogspot.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft

[Elecraft] K1 (still) a classic!

Absolutely a fun radio, Curt --- one slight caveat, though... Any radio is truly "fun" 'cuz/as band conditions/propagation AND one's "to some degree, efficient" antenna allow(s). 71.5/72 de Jim Rodenkirch K9JWV From: "Curt" Date: 2016-04-02

[Elecraft] K1 (still) a classic!

I got K1-4 s/n 2258 (40, 30, 20, 15) out of the drawer yesterday, hadn't used it in about a year. With wire antenna on 30M, QSO with AL at 1W. Then on 15M, QSO with FL at 5, 1, and 0.1W (!). Then ragchew with op in CA using 5W. His yagi helped no doubt. Had forgotten what a fun, capable rad

Re: [Elecraft] K1 Low Power on 20M band once ATU is installed...fixed!

Michael, C13 is the Transmit Offset capacitor adjustment. It is quite possible that there was a bit of oxidation between the rotor and the fixed plate which was cleared by rotating the trimmer. 73, Don W3FPR On 2/27/2016 11:03 PM, n2...@aol.com wrote: Well it is finally fixed. When I went

[Elecraft] K1 Low Power on 20M band once ATU is installed...fixed!

Well it is finally fixed. When I went to listen to the signal on my K3 I noticed the frequency was off around 500 Hz or so. Tried to adjust the sidetone pitch and nothing happened - test mode audio was weak and frequency would not change with C13. I moved C13 back and forth a little and t

Re: [Elecraft] K1 Low Power on 20M band once ATU is installed...

Michael, One possibility is a bad relay or a relay mounted backwards or a relay with a poorly soldered connection. You cannot reliably check the inductor relays without removing one lead of the inductors. Do that first. Then in menu ATU CLP you should have continuity through all the inductor

[Elecraft] K1 Low Power on 20M band once ATU is installed...

Still have not figured out what's wrong with my newly built K1 w/ ATU. For some reason everything is fine on the 40 M band but once I switch to 20 M the power output drops way down. On the low part of the band the power output is much higher but still too low. I went thru all the C and L p

Re: [Elecraft] K1 DC voltage check

"not drastically" was what was used - trying to mean 'very little'. 73, Don W3FPR On 2/27/2016 3:12 PM, Mark Petrovic wrote: Thank you, Don. What does drastically mean in this context? On Feb 27, 2016, at 11:59 AM, Don Wilhelm wrote: Mark, You are effectively reading the voltage drop acro

Re: [Elecraft] K1 DC voltage check

Thank you, Don. What does drastically mean in this context? > On Feb 27, 2016, at 11:59 AM, Don Wilhelm wrote: > > Mark, > > You are effectively reading the voltage drop across D16. > That 600mV drop across D16 will not drastically affect the operation of the > K1. > If you would like a bit

Re: [Elecraft] K1 DC voltage check

Mark, You are effectively reading the voltage drop across D16. That 600mV drop across D16 will not drastically affect the operation of the K1. If you would like a bit higher voltage on the PA transistor, you can increase the voltage of your power supply a bit (the K1 upper voltage spec is 15 v

[Elecraft] K1 DC voltage check

I'm performing the DC voltage checks (page 30 of the instructions), which occur immediately after installing the power switch on the RF board. P1 pin 16 is supposed to be supply minus 300mV, but I get 600mV. Is this a cause for concern? ___

[Elecraft] K1 Problem

Many thanks for the replies received. My query was a bit brief as I was not certain if I was still a registered user of the Reflector. A bit more information. Dave, the builder, and I were doing the Rx alignment, we had the intermittent fault which Dave had had before and he had associated it wi

Re: [Elecraft] K1 Problem

George, No immediate positive answers, but that sounds suspiciously like a bad solder connection or an unsoldered connection somewhere. The blank display would be associated with the Front Panel board and the surrounding components (refer to the schematic to identify those components) and refl

[Elecraft] K1 Problem

A fellow club member is building K1 and has reached the Rx alignment stage. However he has an intermittent fault which gives a blank display and an audio tone in the phones. Any ideas where to start looking. George. G3ICO Sent from my iPad __

Re: [Elecraft] K1 Low Power on 20M band once ATU is installed...

Michael, Did you change the jumper next to the BNC jack when you installed the KAT1? If you failed to do that, the K1 would show a low power even though it was actually developing full power output. Make sure the ATU menu is set to CAL P. If you are measuring power output with an external wa

[Elecraft] K1 Low Power on 20M band once ATU is installed...

I just built a new K1 and had some problems with the output power. To make a long story short I ended up having to lower the values of R5 and R11... This brought the power levels up on the 40 M band from 1.5 to 6.5 Watts and on the 20 M band from 0.5 to 5.5 Watts. Figured all was well n

Re: [Elecraft] K1 L9 and L10 inductors

Mark, Those inductors should work fine. The important thing is to count the turns correctly. Each time the wire passes through the center of the core, that is one turn - in other words, a straight wire through the core is 1 turn, a full wrap around the core is 2 turns. The advantage of usi

[Elecraft] K1 L9 and L10 inductors

Hi. I'm not sure how perfect the wound inductors need to be when assembling the K1 filter board. Here's mine: https://drive.google.com/open?id=0B2mjyTRatLHGNXZwVFZXc0FISFU Do these look good enough? I did L9 first, and I feel like L10 is better. Also, I did not notice at the time that L9 is w

Re: [Elecraft] K1 test signal generator oscillator

Perhaps the 5 MHz rock is a third overtone cut. My experience, I've never been successful in getting a third overtone cut to oscillate on the fundamental frequency. 73 Bob, K4TAX On 2/11/2016 9:38 AM, zabarnick . wrote: I recently built the small test oscillator circuit shown in the K1 man

[Elecraft] K1 test signal generator oscillator

I recently built the small test oscillator circuit shown in the K1 manual. Using a 5 MHz crystal, my circuit built on a breadboard oscillates on the third overtone at 15 MHz, rather than the fundamental. Any suggestions as to why and how to modify the circuit to oscillate on the crystal's fundament

Re: [Elecraft] K1 no audio

lol! Not a bad idea Frank! :) John KD8UDZ - John Hines -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-no-audio-tp7612521p7612535.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecra

Re: [Elecraft] K1 no audio

John, great to hear. Most of us have graduated to a 6” loop that is lighted. Frank KG9H > On Jan 11, 2016, at 10:48 AM, wingman67 via Elecraft > wrote: > > Problem solved, thanks for the pointers Don! In checking the RF board and > filter board over and over, I disassembled the front-panel boa

Re: [Elecraft] K1 no audio

Problem solved, thanks for the pointers Don! In checking the RF board and filter board over and over, I disassembled the front-panel board again, resoldered pin 10 on J1 since it didn't look as good to me as it could have been and then, as I went over everything I found an unsoldered leg on R11.

Re: [Elecraft] K1 no audio

Ok I now have audio.I can hear "hiss" fairly loudly as well as strong sidetone when I go into the stl menu. I replaced C11 and audio sprung to life. I proceeded to wind L1 and installed it, then re-installed my filter board and now I get the E42, "No VFO." I can go into the menus and success

[Elecraft] K1 no audio

I have recently built up a K1 to the point of the receiver alignment (page 36, 7 "Alignment and Test, Part 1"). Up until this point all of my test points have been successful, voltages correct, etc. When I power on the K1 I get the correct LED test pattern and then the E27/E42 error messages that

Re: [Elecraft] [K1] Internal Noise Bursts every 12 seconds or so

I completed my K1 assembly/alignment/testing after about 27 hours. A couple of those hours were spent dealing with the periodic noise burst on RX. I'm happy to report, that with the addition of a couple of 0.47uF caps on the 6A and 6B power supply rails, the periodic noise burst signal level was

Re: [Elecraft] [K1] Internal Noise Bursts every 12 seconds or so

, Dauer, Edward wrote: I think there was a Sci-Fi movie in the 1950s that started that way . . . led to a very DX QSO. Ted, KN1CBR Message: 23 Date: Wed, 30 Dec 2015 12:15:56 -0500 From: Bob To: "w3...@embarqmail.com" Cc: Mike Morrow , Elecraft Subject: Re: [Elecraft] [K1] Inter

[Elecraft] [K1] Internal Noise Bursts every 12 seconds or so

I think there was a Sci-Fi movie in the 1950s that started that way . . . led to a very DX QSO. Ted, KN1CBR >Message: 23 >Date: Wed, 30 Dec 2015 12:15:56 -0500 >From: Bob >To: "w3...@embarqmail.com" >Cc: Mike Morrow , Elecraft >Subject: Re: [Elecraft] [K1] In

Re: [Elecraft] [K1] Internal Noise Bursts every 12 seconds or so

Great advice, Don. I will try that soon. The noise is raspy alnost static like. Not a ticking like you would expect from digital noise. I have mechanically probed every component lead and cant cause the noise that way which I would expect from any intermittant connection. Nor does rapping hard o

Re: [Elecraft] [K1] Internal Noise Bursts every 12 seconds or so

Bob, Can you describe "noise burst" - is it more of a "tick", or if it is longer, what is the approximate duration. You will likely have to short the signal path at several points to isolate it. One such point is the input to the product detector - solder a jumper between pins 1 and 2 of T2.

Re: [Elecraft] [K1] Internal Noise Bursts every 12 seconds or so

Bob wrote: > In looking over the Front Panel Schematic quickly, my attention was > drawn to the 6 volt power supply generated on the Front Panel ("6A") > and distributed to several high gain parts of the RF board. Any noise > on 6A is going to be an issue. I also noted that there is no tradition

Re: [Elecraft] [K1] Internal Noise Bursts every 12 seconds or so

Thanks for the ideas, Mike! Well I can rule out the Filter Board, as the noise is still there when the Filter Board is removed. I hoped I could remove the CPU to see if there was an issue there, but with the CPU gone, the audio is eliminated (probably need to pull something high or low to get the

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