Re: [Elecraft] Planning the next filters

On 3/8/2018 10:18 PM, Bill Frantz wrote: This problem occurred with a SignaLink. That's not a very good interface. It helps to have an clip light or other digital level indicator on the interface for the received signal. My Tascam US100 has a green signal presence light and a red one for

Re: [Elecraft] Planning the next filters

I understand that advice, and follow it most of the time. However, I found that when I was trying to receive weak PSK31 signals, strong, nearby signals would make decode impossible. Using a combination of the 250 Hz filter with the DSP filter, sometimes as narrow as 50 Hz would allow decode. I

Re: [Elecraft] Planning the next filters

On 3/8/2018 1:08 PM, Bill Frantz wrote: I got the 250 for eliminating loud PSK signals from wiping out weak ones. It was a bunch of playing with center and width, but worked quite well. Hi Bill, Recall my post from a few days ago about phase shift being the enemy of signal decoders, and

Re: [Elecraft] IFR1500 Service Monitor For Sale

Usain Bolt ran 100 yards in slightly less than 10 seconds so 0.1 Hz can be accurately measured with a stopwatch. Eric KE6US On 3/8/2018 5:44 PM, Gary Baker wrote: I have an IFR1500 Service monitor for sale--$3,300 plus shipping cost. This service monitor is in great condition with a new

[Elecraft] IFR1500 Service Monitor For Sale

I have an IFR1500 Service monitor for sale--$3,300 plus shipping cost. This service monitor is in great condition with a new attenuator and center frequency meter. It has the high accuracy time base and can measure frequencies down to .1 Hz! Photos available upon request. 73's, Gary-K7EMF

Re: [Elecraft] 1.8 kHz SSB Filter

Yes! 73, Bill K9YEQ -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Bob McGraw K4TAX Sent: Thursday, March 8, 2018 7:22 PM To: Elecraft List Subject: Re: [Elecraft] 1.8 kHz SSB Filter I definitely

Re: [Elecraft] 1.8 kHz SSB Filter

I definitely agree regarding having a 1.8 kHz filter for SSB is a positive attribute.   In fact both of my radios have 1.8 kHz filters.   And by reducing the DSP BW to 1.8 kHz and shifting the PBT, one would be amazed at how well a SSB signal really sounds. Certainly worth the investment in my

Re: [Elecraft] 3D-print case for KXPD2

Very nice, Johan! A 3d printer is tempting, though I have no real need... Kind of like this radio hobby we're all addicted to. :-) 73, Mike ab3ap On 03/07/2018 02:59 PM, Johan Ymerson wrote: Hi, I just received my KXPD2 and needed a case to protect it. Couldn't find one so I created one

Re: [Elecraft] k3 key out jack

Shel, Keyout is on RF Board sheet 1. Is your problem only from the internal keyer? In other words, does it work when you use a hand key or computer keying? If also a problem from a hand key or computer keying, then what is the DC voltage at the gate of Q3 during keydown - should be almost

[Elecraft] k3 key out jack

Sent from Mail for Windows 10 My K3 does not pull the key out line to ground when pulsed by the internal keyer, I need some help in tracing the circuit on a schematic. Shel Sherman WO0C __ Elecraft mailing list Home:

[Elecraft] K3S For sale 100 Watt version with ATU

I have a K3S for sale (Original owner) It was factory calibrated when I had the LPA board replaced shortly after it was built. It has been a great radio will be missed but I need to make room. Mic, Power cables, manual 3000 OBO Pics available on demand. Also listed in the facebook "ham

Re: [Elecraft] Planning the next filters

I am a all-band, all-mode operator. I contest, chase DX, and just make contacts. I have something close to what you are considering. I have 250, 2.1K, 2.7K, and 13K filters in both my main and sub receivers. I got the 250 for eliminating loud PSK signals from wiping out weak ones. It was a

Re: [Elecraft] BNC connector oddity on KX3

That's one thing I was able to check; connector is tightened securely on the shell of the KX3. Thanks. On Thu, Mar 8, 2018 at 3:44 PM, Don Wilhelm wrote: > Rich, > > If the BNC connector rotates even a wee bit, that is the problem - tighten > the BNC jack. A good

Re: [Elecraft] Planning the next filters

Hi Craig I would go for the 200Hz filters, not the 250Hz. I added the 200Hz to my main and sub receivers (already have the 400Hz) and they are a really worthwhile addition. That's my opinion FWIW. 73 Barry VK2BJ On 9 March 2018 at 03:57, Craig Buck wrote: > Get the 1.8

Re: [Elecraft] BNC connector oddity on KX3

Rich, If the BNC connector rotates even a wee bit, that is the problem - tighten the BNC jack. A good connection to the jack shell is required. "Opening it up" is not a big deal - unless you have the 2 meter option - just remove the bottom cover, no more complicated than changing batteries.

Re: [Elecraft] BNC connector oddity on KX3

I have three more days of checking various configurations including binding post antennas, end fed half waves, opening the damn thing up... Thanks all for the suggestions. On Thu, Mar 8, 2018 at 2:50 PM, Walter Underwood wrote: > Open it up and make sure that the

Re: [Elecraft] Planning the next filters

I would replace the 2.7 with the 2.8, keep the 400 and be done with it. I did. The purpose of the "roofing filters" (I hate that term) is to protect the 2nd mixer from overload.  The wider filter is used on TX as well and the 2.8 has superior symmetry which helps opposite sideband rejection.

Re: [Elecraft] BNC connector oddity on KX3

Open it up and make sure that the antenna connector is securely connected to the ATU board. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 8, 2018, at 11:46 AM, GRANT YOUNGMAN wrote: > > So was the antenna and related

Re: [Elecraft] BNC connector oddity on KX3

So was the antenna and related cabling/connectors good as verified by your analyzer at the point of the radio connection? In some 60 years of doing this, I have yet to find the radio to be the problem when it tells me it’s looking into high SWR. There’s a first time for everything, course :-)

Re: [Elecraft] [KX3] Re: BNC connector oddity on KX3

The upgraded BNC is part KX3BNCMDKT, $49, listed on this page. http://www.elecraft.com/order_form_parts.htm#kx3 wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 8, 2018, at 11:23 AM, rich hurd WC3T r...@wc3t.us [KX3] > wrote:

Re: [Elecraft] BNC connector oddity on KX3

Okay, so I took the plunge and disconnected the KX3 to take with me on vacation. Hooking it back up proved to be a tad problematic - SWRs of 25:1 and no signals from any bands, anywhere. I'm now working through what options I have, starting with checking female connector deformation and doing

Re: [Elecraft] Planning the next filters

It's important to understand that the variable DSP IF is plenty good enough for most operation. The function of the roofing filter is to protect the DSP from overload by strong signals outside the passband. I would consider buying additional filters ONLY if you're a serious contester.  I am,

Re: [Elecraft] Planning the next filters

I think you are optimally configured right now. I used to have the 1.8 filters in my K3's, but sold them. I think they hurt intelligibility more than they helped with QRM rejection. Remember that these are only roofing filters. The DSP filter has a higher effective shape factor, especially

Re: [Elecraft] Planning the next filters

Hi Chuck, The purpose of roofing filters in the K3 is commonly misunderstood, they're primary function is to protect the receiver from overload from an extremely strong interfering signal within the passband occupied by the signal of interest. There's an excellent paper on this topic on the

Re: [Elecraft] Planning the next filters

> I plan on a 250 Hz CW filter, I may be the odd man out but I can't see much enough difference between the "400 Hz" (450 Hz @ -6dB) and the "250 Hz" (370 Hz @ -6dB) to justify the cost. If you feel you *need* a narrower filter in the 8215 KHz IF, consider the new KFL3C-200 which is truly 200

[Elecraft] Planning the next filters

400Hz is my favorite CW/RTTY filter. I also have a 250Hz but if you read the archives you will see that it is not much narrower than the 400. If you are concerned about the cost this is worth looking at. I have the 2.1KHz and 1.8KHz SSB filters. Of course the 2.1 sounds better, I switch in the

Re: [Elecraft] Planning the next filters

Hi Chuck, I agree with K9FN.  I have the 250 Hz filters and rarely use them.  The 400 Hz filters are great.  So good that I would not miss the 250s at all. On SSB I also have the stock filters.  Here's how I handle crowded phone contests.  I set the width to 2.0, sometimes 1.8.  Then use the

Re: [Elecraft] Planning the next filters

Get the 1.8 if you work ssb. Experiment with shifting the pass band for maximum clarity. Youll be amazed just how narrow it can get and still be understandable. On Mar 8, 2018 11:24 AM, "Chuck Chandler" wrote: > Right now I have the stock SSB and a 400 Hz filter in both

Re: [Elecraft] FT8 DXpedition Mode test.

Don, OK I had to test this again and look at the manual.  I "thought" I tried shift but brain cells are getting old... I used fldigi to see a nice 0-4K audio spectrum. I went to 40m (shouldn't matter), set DATA A, set BW=4.0, Adjusted FC from low to high 1.28 to 1.64 with *1.5.     FC ... If I

Re: [Elecraft] key out port

http://www.elecraft.com/manual/K3_Schematics_Jun_2010.pdf Chuck Jack Sent from my iPhone, cjack On Mar 8, 2018, at 10:18 AM, Don Wilhelm > wrote: Shel, It seems the K3 schematics have disappeared from the Elecraft website, but the K3S

Re: [Elecraft] Planning the next filters

Chuck - You will likely get a wide variety of responses, and here is mine. I added the 400 Hz filter to my main and sub receiver. I work CW almost exclusively. I rag chew and chase some DX. I barely “dabble” in contests. I can’t recall a single time when I thought a narrower CW filter would have

Re: [Elecraft] key out port

The K3 schematics are on the web site: http://www.elecraft.com/manual/K3_Schematics_Jun_2010.pdf 73, ... Joe, W4TV On 3/8/2018 10:57 AM, Don Wilhelm wrote: Shel, It seems the K3 schematics have disappeared from the Elecraft website, but the K3S schematics are listed - and should be

Re: [Elecraft] key out port

There are K3 schematics at http://www.elecraft.com/manual/K3_Schematics_Jun_2010.pdf Some of the modules in this package are a bit out of date (later than 2010), so the K3S docs may be needed, too, depending … Grant NQ5T K3 #2091,

[Elecraft] Planning the next filters

Right now I have the stock SSB and a 400 Hz filter in both main and sub rcvrs. I would like to add some a few at a time. My first priority is to add a couple to the main receiver, since it is the biggest chore to get to. I plan on a 250 Hz CW filter, but am going back and forth between the 2.1

Re: [Elecraft] key out port

Shel, It seems the K3 schematics have disappeared from the Elecraft website, but the K3S schematics are listed - and should be adequate for that problem. I do have the K3 schematics, and if that will help, send me a private email (take Elecraft out of the subject line) and I can send the

Re: [Elecraft] K3 Utility

Solved. I am using a 10 point USB hub and somehow the comm port number changed. Sent from my iPhone > On Mar 8, 2018, at 9:37 AM, Harlan Sherriff via Elecraft > wrote: > > Does the utility save any info in Windows registry? > > I opened the utility to check for

[Elecraft] K3 Utility

Does the utility save any info in Windows registry? I opened the utility to check for firmware. As soon as I opened it, I received the “K3 waiting for firmware load.” message. I was unable to get anywhere using info from the help file, so connected the K3 to another computer and all was

Re: [Elecraft] KX2 Jacks

Adrian, That information is in the KX2 manual. Download it if you do not have a printed one. Power - 2.1mm/5.5mm coaxial plug - see page 5 of the manual. Phones - 3.5mm stereo (TRS) - see page 8 of the manual. MIC - 3.5mm TRRS - see page 8 of the manual, but a TRS can be used if MIC BTN

Re: [Elecraft] PTT-ERR

Larry, I doubt that this is a firmware caused problem, but would rather think it is something that has been gradually failing and got worse about the time you loaded the new firmware. ERR PTT normally is indicated when PTT is active during a power on, but yours seems to be different, and may

[Elecraft] PTT-ERR

Hi everyone, Since I upgraded the software on my K3 last time, I would get PTT-ERR messages when using FSK/RTTY every now and then. Now it seems to be happening during a RTTY transmission.  I know there were some changes in the K3 software but I can't figure out how fix this issue. I'm using a

[Elecraft] KX2 Jacks

Hi all. I’m wondering could some kind person tell me what diameter and the number of poles the ACC, KEY, PHONES, MIC jacks are. And the sizes for the power jack also. Thanks Adrian MM0TAI Sent from my iPhone __ Elecraft mailing

[Elecraft] key out port

I cannot get the key out port to pull to ground using the internal keyer I have no gate signal change when pulsing the keyer I cannot find the schematic so I can trace back to the keyer outlying order to find the break help appreciated call 314/580/3566 Shel Sherman. Wo0c -- Shel Sherman

Re: [Elecraft] KPA1500 ... ATU tune cycle must be initiated manually since key line interrupter is installed

I’d encourage a stereo Y ¼” adapter. You don’t want to connect tip to ring at the KPA1500. Something like this: https://www.amazon.com/Stereo-Y-Adapter-Single-Male-Female/dp/B00FE089DQ I have some solid Y phone adapters, but they may not work as well when the K3 front is lifted by