Re: [Elecraft] K3 And WSJT-X FT8 Timing

In as much as one only has 1 second minimum resolution, I'd say that is quite normal.  No,. the ALC/RF should not occur at the same time as the TX LED is illuminated. In order to correctly determine accurate timing values, one needs to use a triggered dual trace scope to see exactly when

Re: [Elecraft] K3 And WSJT-X FT8 Timing

My concern with using VOX is that the radio has to receive audio before it goes into transmit.  Thus one can almost be assured some data will be lost.   Hence I find the better PTT choice is CAT with a 0.1 second TX delay before audio is sent to the radio from the software.  This is all

Re: [Elecraft] KX3 SWR Meter vs MFJ

What's the SWR?   Anything under 2:1 won't make a difference in performance. Using two 50 ohm dummy loads connected in parallel, either instrument should show a 2:1 SWR. Be sure the dummy loads are actually 50 ohms and not just labeled such.  I have one of those "gallon" type loads that

Re: [Elecraft] Fwd: K3 And WSJT-X FT8 Timing

-232 set to USB. 73 Bob, K4TAX On 2/23/2018 8:25 AM, John Stengrevics wrote: Try this. On Feb 23, 2018, at 9:16 AM, Bob McGraw K4TAX <rmcg...@blomand.net <mailto:rmcg...@blomand.net>> wrote: No issues of that type here.   These are my setup numbers: Baud Rate = Eight 38400 Sto

Re: [Elecraft] K3 And WSJT-X FT8 Timing

But there is a delay in WSJT-X.   See the F2 Setup,  Advanced tab and Miscellaneous.   Make sure the TX Delay is set to 0.1 sec. This is the time delay between PTT and start of audio.  Also, if one uses CAT control, then be sure the VOX on the radio is OFF. Don't use both. 73 Bob, K4TAX On

Re: [Elecraft] Fwd: K3 And WSJT-X FT8 Timing

No issues of that type here.   These are my setup numbers: Baud Rate = Eight Stop Bits = one Handshake = None PTT method = CAT Mode = Data/Pkt Split = Rig Also under the Advanced tab:  Miscellaneous TX Delay = 0.1 sec.  I'm not running any other applications such as JT Alert, N1NM, etc. 

Re: [Elecraft] K3 And WSJT-X FT8 Timing

If you are seeing a majority of the decodes in which the DT is less than <0.5 seconds, your computer clock is close enough for reliable contacts and decodes.   The software should handle decodes with a DT up to 2.0 seconds, but in many cases this depends largely {very largely in fact} on

Re: [Elecraft] K3 And WSJT-X FT8 Timing

Within WSJT-X there is a slight delay between the time the PTT command is issues and the start of DATA audio.   The value is established via the F2 setup menu, Advanced page, under Miscellaneous.    Additionally if you are using VOX control via the radio, this delay of audio is very apparent.  

Re: [Elecraft] POWER LOCKED

A bit of advice...using the Elecraft Utility, once you get the radio working and configured as you desire, perform a backup of the radio configuration and save this to a folder and file on your computer. I usually do this before I start messing with values and settings.   That way, when I

Re: [Elecraft] OT Power Strip suggestion.

Invest in a whole house surge protector.  Sometimes called secondary surge protector or arrestor.    It is installed at the breaker panel, preferably by a licensed electrician.  These are available at electrical supply houses and big box hardware stores, Lowe's, Home Depot, Minnards and such.  

Re: [Elecraft] Antenna tuning or matching unit

I agree with Ron in that one must understand using an ATU at the transmitter does not change feedline loss. In fact it adds additional system loss due to loss incurred in the tuner. If the transmitter can not deliver rated power into the load that is a different issue to resolve. The ATU may

Re: [Elecraft] K3S/FT8/Mac mini Problems

Sounds as though RF is getting into the computer. I had the issue and added ferrite cores to several cables. Including the one between the radio and computer. Some improvement noted. Replaced the USB cable with a good quality shielded cable. Problem solved even at near legal limit. Bob,

Re: [Elecraft] Mac Clock Question

My general thought on computer time accuracy..start decoding stations.   Watch the DT value of those decoded.  I find if the majority are less than <0.5 +/- then your computer clock is good.   If most stations decodes  are greater than >0.5 +/-, then I'd look for a better time reference. 

Re: [Elecraft] Suggestions needed - antenna to tuner

Why not ground the antenna and feed it as a Unipole?  Most AM BC stations are doing that these days.  They also use a remote tuner, although it is usually a fixed network as they only use one frequency.  That way the reflected power on the line is nil. 73 Bob, K4TAX On 2/13/2018 12:29 PM,

Re: [Elecraft] KPA500 Info Disappeared From Website

Ya know...when one tinkers with something that works, often they end up with something that doesn't work.    Just sayin' 73 Bob, K4TAX On 2/13/2018 9:26 AM, rich hurd WC3T wrote: Hmm. I'd say that was sort of indicative of the entire Elecraft.com domain... nothing seems to be online.

Re: [Elecraft] Suggestions needed - antenna to tuner

Chris; Add or remove about 6 ft of the open wire line.  See if this helps the 17M issue. I personally don't like the idea of using a 4:1 balun and much prefer a 1:1 current balun.  With the 4:1, without measuring the Z on the coax side, it may be the Z presented to the tuner is very low and

Re: [Elecraft] Suggestions needed - antenna to tuner

I've used balanced line systems and tuners and baluns for years. In general the 135 ft center fed wire with your choice of balanced line, I use the vinyl covered 450 line from The Wireman, will work quite well.    I bring the line from the feed point of the antenna all the way to the operating

Re: [Elecraft] UHF connectors [was: Array Solutions Lightning Arrestor]

I concur with Jim's comments on loss.   I view one should always look at the component which contributes the greatest loss in the system,  that is most often the feedline.  One should strive to improve the condition by using a line type of less loss.  {i.e. better quality feed line} and

Re: [Elecraft] K3s transmit bandwidth adjustment?

In looking back at my test data, I issue a correction as follows: It is reasonably flat thus +/-1.5 dB from 400 Hz to about 2500 Hz. My goof. 73 Bob, K4TAX On 2/10/2018 1:29 PM, Michael Blake wrote: Thank you Bob. Mike - K9JRI On Feb 10, 2018, at 13:57, Bob McGraw K4TAX <r

Re: [Elecraft] K3s transmit bandwidth adjustment?

Based on my measurements the transmit frequency response is limited by the 2.7 kHz SSB filter.  It is reasonably flat thus +/-3 dB from 400 Hz to about 2500 Hz.  My next measurement points were 300 Hz {-6 dB} on the low end and 3000 Hz {-6 dB} on the high end or 2700 Hz. Thus your numbers of

Re: [Elecraft] Selectivity

Are you using or boosting the receive EQ in CW mode?   I believe at lower BW settings the EQ will be negated thus you are losing the effects of the applied boost.   As an operating practice, little to no RX EQ should be used for CW mode as EQ typically creates phase effects impacting harmonic

Re: [Elecraft] ALC and Solid State Amps...

As a general practice, most do not recommend using ALC from the amp to the transceiver.    ALC is not a "compression" mode and should not be used as such.   The ALC performance in modern transceivers will usually be superior in performance to the voltage derived in the amp and then processed

Re: [Elecraft] Old Posts

Regarding the old posts.due to recent poor propagation conditions, multiple retries of data occurred, thus resulting in multiple and delayed posts. 73 Bob, K4TAX On 2/7/2018 2:36 PM, Ron D'Eau Claire wrote: FWIW, this is not the ONLY list getting tons of old messages, so it is not

Re: [Elecraft] KX3 Roofing Filter Question

In general, filters have little to do with sensitivity.   On the other hand, filters do provide selectivity.   In crowded band conditions where one is attempting to dig out a weak signal among stronger signals, the roofing reduces the likelihood that the stronger signal will impact the overall

Re: [Elecraft] KX3 Faulty SWR indication

Based on your description, I'd say there is some instability in one of the stages.   The dummy load will present a uniform impedance at all frequencies, thus the SWR will be 1:1.   output network will show evidence of reflected power.   Using the ATU, it adds filtering thus eliminating the

Re: [Elecraft] K3 selectivity positions

Did I miss something or was no message content sent? 73 Bob, K4TAX On 1/30/2018 11:25 AM, Roger D Johnson wrote: __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

Re: [Elecraft] OT: 3Y0Z Bouvet Island DXpedition

Break out the Dramamine. Some years ago a very seasoned commercial sailor told me; "there's not a man alive that under certain sea conditions, won't toss his cookies".    After a few trips, I too learned that to be true.  I later inquired about what to eat for breakfast?   He said, "bananas, 

Re: [Elecraft] Array Solutions Lightning Arrestor

Correct installation is usually the key.  The line must be supported no more than 12" from the connector and NEVER at any time by the connector, even during installation.   Also, line supports along all vertical and horizontal runs is a must. 73 Bob, K4TAX On 1/23/2018 4:27 PM,

Re: [Elecraft] K3 Power Reading/SWR/ALC Problem

From experience, I'd say nearby lightning strikes would be the culprit.   I strongly urge everyone to use protection devices on all coax and balanced lines at the point where the feed lines and rotor lines enter the house.  I prefer Polyphaser devices.   Don't buy cheap or ham fest bargain

Re: [Elecraft] K3 won't TX in FT-8

This says the Line Gain on the K3 is too low.   Or the PWR slider on the WSJT right side is too low.   Be sure in the F2 menu / Settings, the Audio panel has the correct  Audio IN and Audio OUT selected under Soundcard.   Should be USB CODEC. Don's info is very correct and very complete.  

Re: [Elecraft] Special type of coax - need info

That is a coax with a double shield except the shields are each insulated. Bob, K4TAX Sent from my iPhone > On Jan 16, 2018, at 3:09 PM, Jim Brown wrote: > >> On 1/16/2018 12:53 PM, David Christ wrote: >> Twinax under that name was a two conductor shielded coax

Re: [Elecraft] K3S Microphone Cable

I've used some star quad cable in certain pro audio applications. The braid shield type is necessary where flexibility is required however, just as in coax, not all braid is the same. Some provides 85% shield (poor) while others approach near 100% shielding (good). There is a difference in

Re: [Elecraft] K3S Microphone Cable

For a reason Clay stated and that is not using the shield as a current carrying conductor in audio, I use a 3 wire shielded cable for all my mike applications, ham radio and professional.   There are several good brands, Alpha, Belden, and others.  Also Heil has some cable which is suitable 

Re: [Elecraft] Direct USB Connection for Digital

All of your questions will be answered in the K3S manual.  It is easy to read and easy to set up the radio. 1. There is the list of  Rigs for the Elecraft K3/KX3 in the WSJT Radio tab along with; Baud rate 38400, 8 bit, no stop, no handshake.   PTT is CAT.  Mode is Data/Pkt, Split is Rig.   

Re: [Elecraft] K3 NO ATU ?!?!?1

One thing I  do is make a configuration backup using the Utility.  I think is saves this type of data.  In any event, when I get things messed up for some unknown reason {usually mine}, I just revert to the backup and restore the radio.  All is then well. Usually do my backups for the radio

Re: [Elecraft] recommendations for CW paddles under $125

In the words of another highly regarded ham."what ever makes you feel comfortable is always best".   Personally I'm pleased with my Vibroplex Iambic paddle.  Don't remember what it cost, but are the standard model, no chrome base just texture grey finish but with upgraded jewel

Re: [Elecraft] PAR/LNR EFHW antenna

I use a switch tapped air inductor with a variable C on one end. It is an L network thus it is reversible and will match either Hi Z or Lo Z loads. This always brings the load to within range the ATU in the radio can resolve a match. Bob, K4TAX Sent from my iPhone > On Jan 9, 2018, at 3:48

Re: [Elecraft] Elecraft Hex Key worth?

I think this is what one looks like. 73 Bob, K4TAX On 1/9/2018 1:14 PM, IK4EWX wrote: Scott, the hex key is a copy of a N2DAN on an hex base, produced by Bencher after they bought the right of N2DAN paddle. Sure it is a great key. Vibroplex/Bencher now sell il for 324 $, I think this is

Re: [Elecraft] PAR/LNR EFHW antenna

Darn autocorrect "balun"..not baling! Bob, K4TAX Sent from my iPhone > On Jan 9, 2018, at 10:41 AM, Bob McGraw K4TAX <rmcg...@blomand.net> wrote: > > Not only winding them wrong but if find more and more being used incorrectly. > There is no one baling de

Re: [Elecraft] PAR/LNR EFHW antenna

Not only winding them wrong but if find more and more being used incorrectly. There is no one baling design that can be used in all applications. The more common error is the internal balun contained in tuners. Bob, K4TAX Sent from my iPhone > On Jan 9, 2018, at 3:33 AM, Jim Brown

Re: [Elecraft] Fwd: PTT switch for K3

Usually most guitar players have an abundance of  "stomp boxes". Of course select one that doesn't have all the electronics and controls included inside. I checked with a local music and instrument store and asked about one that was perhaps junk just to get the base.  The fellow asked what

Re: [Elecraft] Strange thing.

Have you been operating the K3S using CAT control from an application or logging program?   I've found when terminating some programs or the computer or radio, during the shut down sequence, things change.     Otherwise, values are not as you normally use them or as you left them the previous

Re: [Elecraft] Very off topic, but trying to get info...

Wellthat certainly spoiled some kids adventure.   Wonder what the officers wrote in their reports. 73 Bob, K4TAX On 1/7/2018 7:10 PM, Tom wrote: Mystery Solved Cops sent two cars, ...climbed the tree... https://va2fsq.com/geocache/ Click on the pic... 73 Tom -Original

Re: [Elecraft] OT: Pigremote availability

Hope the surgery and recovery goes well.   I doubt there is much RF around the transmitter.   At least there shouldn't be much if any.   However, the radiation from the antenna could be another story. 73 Bob, K4TAX On 1/4/2018 9:34 AM, KQ8M wrote: I see the Pigremote is out of stock. Is

Re: [Elecraft] Progressive Tuning Rate

I like the tuning rates on my K3S just as it is.   No changes requested.  And I have radios with variable tuning rates.  They are an annoyance in my usage. 73 Bob, K4TAX On 1/2/2018 6:23 PM, Merv Schweigert via Elecraft wrote: Set the parameters and use the rate button,  push go fast, push

Re: [Elecraft] Elecraft K3s Power Supply SS30DV

I have the Astron SS30M which I find to be electrically quiet, excellent regulation.  The fan does cycle on and off from time to time and that is noticeable.    I power 3 radios, not at the same time, from this supply.   Originally it has the Pos and Neg connections where you insert the wire

Re: [Elecraft] filters

I prefer the 500Hz filter over more narrow ones. Less IMD on the RX signal. Bob, K4TAX Sent from my iPhone > On Dec 31, 2017, at 9:55 PM, K9MA wrote: > > I use similar settings for CW, with both filters. I haven't tried DSP > bandwidth of 250 Hz with the 400 Hz

Re: [Elecraft] 80 meters

*From: *"Bob McGraw K4TAX" <rmcg...@blomand.net> *To: *elecraft@mailman.qth.net *Sent: *Sunday, December 31, 2017 2:27:01 PM *Subject: *Re: [Elecraft] 80 meters I run my power supply at 14.0 volts as measured at the supp

Re: [Elecraft] 80 meters

I run my power supply at 14.0 volts as measured at the supply. This is done to accommodate the ~0.25 - ~0.35 volt drop in the DC line between the supply and the radio when in transmit. 73 Bob, K4TAX On 12/30/2017 10:20 PM, Barthold Lichtenbelt via Elecraft wrote: Make sure your power

Re: [Elecraft] [OT] Duplexer/Diplexer

You will need a duplexer on each ends of the coax.   Preferably these should be identical.    One at the bottom end to combine the HF and VHF signals to one coax and then on the top end to split the HF and VHF signals to feed each respective antenna.   Do be mindful that these units are  a bit

Re: [Elecraft] KX3 tip to help remove AA batteries

Shucks, our $1000 wireless professional microphones use the ribbon technique to assist in removing the battery/batteries. Works great until some apprentice audio tech forgets to put the ribbon UNDER the new battery and then says "hey, what's this hanging out of the case?" 73 Bob, K4TAX On

Re: [Elecraft] K3 configuration or control software?

I did download and install V2.008.Zip.  Scanned a couple of my antennas.  Seems to work OK as expected with my K3S. Jim - Thanks for uploading the files and posting same. 73 Bob, K4TAX On 12/25/2017 10:09 PM, Jim N7US wrote: Eric, I believe you're thinking about K3_EZ, which was written

Re: [Elecraft] ALC and the K3

As I understand and was taught, the amplifier ALC came about as the result of exciters having the ability to excessively overdrive the linear amp.  Case and point, the Collins 32S1 transmitter would produce about 150 watts output when correctly tuned and loaded.  That was about twice the

Re: [Elecraft] ALC and the K3

As a rule ALC is not needed and is not recommended by Elecraft. The K3 power management system with the internal ALC is far superior to the derived voltage from most all amps.   And, unlike many radios which when operated with reduced power, they do have a propensity to overshoot, the K3

Re: [Elecraft] USB/RS-232 Cable

I get some noise via that K3S to USB computer connection.  I applied a ferrite bead, about 1" long, so that the cable actually makes a 1 turn loop at each end.  This is one of the snap on beads.    Cured the problem and a couple of others. The 120 Hz signal somewhat indicates a "ground loop"

Re: [Elecraft] Local Beacon Splatter

I would contact the owner and work with him to resolve the issue.   Likely something near the beacon antenna, such as a metal to metal joint that is acting like a diode and generating spurious radiation.  Or if the signal is strong, it could be in your antenna system causing the issue. 73

Re: [Elecraft] K3 / RF gain - S meter issue - Similar issue

My concern would be "does the S meter indicate correctly?" Thus with 50 uV applied to the antenna input it should read S-9, and with 0.78 uV applied it should read S-3, and with 5000 uV applied it should read S-9 +40 dB.    I've checked my K3S at these and other values and I'm confident that

Re: [Elecraft] Macro for setup of K3S for WSJT

As to bandwidth for RX, since the transmit data is limited in bandwidth to the SSB bandwidth, I see no need to have the receiver BW any wider than the TX bandwidth.  Also, the RX low end likely doesn't need to be any lower than the TX bandwidth low end roll off.  Of course if you have SPLIT

Re: [Elecraft] Macro for setup of K3S for WSJT

I find that WSJT and the radio configured for DATA does not need any macro to accomplish this feat. 73 Bob, K4TAX On 12/12/2017 10:58 PM, RIchard Williams via Elecraft wrote: Before I beat my head against the wall (or re-invent the wheel); does someone have a micro to setup the K3S (or K3)

Re: [Elecraft] KX3 not operational after move to Florida

Is that blank 3.5mm plug a tip-sleeve or a tip-ring sleeve?    I believe it should be a tip-ring-sleeve type. 73 Bob, K4TAX On 12/10/2017 11:58 AM, k...@arkayengravers.com wrote: Hi Bill There is no mic, just power, dummy load and blank 3.5 mm plug into the key jack, as suggested by Don.

Re: [Elecraft] K2 paint wanted

One other choice is any paint store or big box hardware store. They can scan and custom mix the color with a high degree of accuracy.  I've used this approach on several occasions with good results. I seem to recall that some paint specialty stores can make custom colors in spray cans. And

Re: [Elecraft] K3 Has anyone compiled a macro for 630 Meter operation

I'll most likely use a transverter.   Base band will be 160M. Likely will design and build my own. 73 Bob, K4TAX On 12/6/2017 4:50 PM, John Seboldt K0JD wrote: Considering that all I hear down there is broadcast station birdies, I'm guessing you're right. :-( On 12/6/2017 16:47, Walter

Re: [Elecraft] KX3/KXPA100 Power Output Difference

And "hamfest" Bird slugs have been found to notoriously be in error.  {if they work at all}   And remember, the Bird meter is a voltage sensing instrument and any impedance deviation from the calibrated value, normally 50 ohms, will introduce an error in the reading. 73 Bob, K4TAX On

Re: [Elecraft] K3 PRE function question

Got one of those "cranky electric fence" across the highway.  The Noise Blanker does a wonderful job of making it go away and not punch holes in the signal at the same time.   Thanks Elecraft! 73 Bob, K4TAX On 12/2/2017 9:05 AM, Doug Person wrote: That seems odd. I live in a community of

Re: [Elecraft] KX3/KXPA100 Power Output Difference

Don's points are very good.   Add to that the resistance or load value to which the power indicator was calibrated.  Ideally it is 50 ohms R +j0.  However, being a voltage sensing circuit, any deviation from 50 ohms will impact the indication.  Thus a 55 ohm load, showing a SWR of 1.1:1 can

Re: [Elecraft] Antenna Analyzer

Agreed.   I've always said hams cut an antenna a bit long and then trim it to get the lowest SWR at the desired frequency. This does not necessarily make for a resonant antenna.    My 75M antenna is resonant at 3.8 MHz as determined using a Grid Dip Oscillator,  but the impedance is about 35

Re: [Elecraft] Antenna Analyzer

I find that Jim's thoughts and findings are similar to mine. SWR is really not a good indication of how well an antenna works. One of my coax lines has a 1:1 SWR from 160M through 6M.  It doesn't receive well nor transmit well.  It' has a dummy load on the distant end. Along the same line, I

Re: [Elecraft] CW Contest and Elecraft K3s decoder

Yes, I find this to be true as well.   I also suggest one tweak the TEXT DEC value to something other than AUTO.  In my experience a value of 3 or 4 works well. 73 Bob, K4TAX On 11/30/2017 3:45 PM, Bill Frantz wrote: I get "reasonable" results. What I find is that the faster the sender,

Re: [Elecraft] OT: Selling IC-7300 For Friend

of earlier versions. The K3 to K3S upgrade path is a good example as is the history of the K2. 73 Bill AE6JV On 11/29/17 at 6:38 AM, rmcg...@blomand.net (Bob McGraw K4TAX) wrote: The Elecraft products have been solid for years.  That speaks well of the company and their values. Although no longer

Re: [Elecraft] OT: Selling IC-7300 For Friend

This is one reason that I won't buy a JA brand radio.  Seems that all of the companies have a "new radio of the month" introduction, thus deflating the value of the brands/models that hams bought in the past few months.    Hams in general a cheap, buy today and loose money on the deal next

Re: [Elecraft] Antenna 2

Either put a small 50 ohm load or leave it open. A short to ground may cause a PA device failure. Bob, K4TAX Sent from my iPhone > On Nov 28, 2017, at 5:19 PM, Jim Rhodes wrote: > > Well if you accidentally transmit into it an open might be better than a > short. Did

Re: [Elecraft] CW Contest and Elecraft K3s decoder

I have refrained from working ANY and ALL contests for several years.    For that and other reasons.   I view contests today in the same class as "road rage". 73 Bob, K4TAX On 11/27/2017 2:39 PM, Fred Moore wrote: This is exactly why I do not work CW contests anymore.  CW contests have

Re: [Elecraft] CW Contest and Elecraft K3s decoder

I've had good to moderate success using the CW decoder.   I find several things to being the key to good results.    First, usually the ATTN is required on lower frequency bands, 160M - 40M, along with correct adjustment of the RF Gain.   Here you want to see that only CW elements flash the

Re: [Elecraft] CW Contest and Elecraft K3s decoder

Kevin et al; I agree, in fact I'd suppose as the CW speed the number of competent operators decreases proportionally.    Now I'm not saying "contest at 5 WPM" but certainly there are more that can copy 15 WPM than 50 WPM.   Just sayin'..so for us slow folks and old folks...QRS.

Re: [Elecraft] KX3 Field Ant. for 80/40/30

A relatively new ham asked for a copy or diagram of my portable antenna design.   Here's my response. Welcome on being a new ham.  As to the antenna design..well there is no such thing in existence. We usually camp in National parks and State parks.  There's

Re: [Elecraft] O.T. Morse is not dead, at least in the U.S. Navy

One of my class mates signed up for the Navy right after graduation from High School.  He ended up being a radio operator. Has retold the story many times of several ops sitting in front of a mill {typewriter} and all were copying the same message from multiple receivers.  The average message

Re: [Elecraft] KX3 Field Ant. for 80/40/30

For that very reason, in our camper operation, I use a end fed antenna.  The matching network is a tapped coil and variable C forming an L network.  The circuit is in a small plastic box with a SO-239 on each end, thus it is reversible.   This allows a wide range of impedance selections, plus

Re: [Elecraft] (OT) - Unplanned Discovery

Don't put all switching power supplies in the same bucket.  There are very good ones that ARE QUIET, and then there are those that generate noise.   Just because it has the side or back posted with all types of certifications basically says  "they met specs at one time". I have 3 Astron

Re: [Elecraft] KPA500 Problem

On PL-259 connectors, make sure they are more than finger tight. I use a pair of 4" Channel Lock pliers to snug mine after they are finger tight.    Today's PL-259's may look good but indeed with many of them today,  the plating is crap!.  Same for coax cable and the way it gets terminated

Re: [Elecraft] KX3: CM500 best price/use with

me EQ work to make it sound normal. 73, mike va3mw On Sat, Nov 11, 2017 at 5:32 PM, Bob McGraw K4TAX <rmcg...@blomand.net <mailto:rmcg...@blomand.net>> wrote: I use the Koss SB-40 which has a dynamic mike. No bias needed. Bob, K4TAX Sent from my iPhone > On

Re: [Elecraft] KX3: CM500 best price/use with

I use the Koss SB-40 which has a dynamic mike. No bias needed. Bob, K4TAX Sent from my iPhone > On Nov 11, 2017, at 3:51 PM, wrote: > > I was also confused by the posts that the CM500 works best with bias off. > Thanks for explaining why this works only with

Re: [Elecraft] Just RX'd KX3 Serial No. 10,028!

Where does the ICOM 706 series fall in the list? I recall hearing or reading that the 706 series was and is their most popular radio. Bob, K4TAX Sent from my iPhone > On Nov 7, 2017, at 7:25 PM, Raymond Sills wrote: > > I say that the Yaesu FT-817 is king of the

Re: [Elecraft] KAT500 actual radiated power during tuning

The AH-4 inserts an internal 16 dB attenuator between the radio and the tuner network during the tuning mode.  After the match is resolved the attenuator is switched out of the signal path.  This assures the radio will always see a near 50 ohm load. 73 Bob, K4TAX On 11/6/2017 7:52 PM, Ken

Re: [Elecraft] Took Some Lightning Damage Last Night

And that rule on disconnect everythingincludes not only antennas, but any ground path to the outside world. Remember, all lightning protection MUST be implemented outside of the structure.  AND all driven grounds MUST be bonded together on the outside of the structure.  This is per

Re: [Elecraft] Just RX'd KX3 Serial No. 10,028!

Based on the serial number series of my K3S, I think the series' starts with 1.   Mine is an early one which is s/n 10163.  I would be surprised if they started with serial number 1. 73 Bob, K4TAX On 11/6/2017 9:58 AM, Graziano Roccon wrote: WOW ! More than 10 thousand... incredible !

Re: [Elecraft] Just RX'd KX3 Serial No. 10,028!

Congratulations! Great radio. Bob, K4TAX Sent from my iPhone > On Nov 4, 2017, at 7:33 PM, JT Croteau wrote: > > I know this doesn't mean much to anyone but me but I've wanted one for > so long. Just received KX3 No. 10,028. Shaves and haircuts coming > soon. > >

Re: [Elecraft] KPA100 100% Duty Cycle - Operating Temperature

Digital modes lend themselves to lower power contacts successfully. It gets messy for all when a station jumps in with excessive power. I'm seeing more and more stations with poor to very poor quality signals. It takes very little effort to be loud, but requires more effort and skill to be

Re: [Elecraft] KPA1500 with P3 Transmit Monitor

A1500. He wanted to > hook his P3 TX monitor input to the output of the KPA1500 amp, before the amp > tuner. Or maybe I misunderstood the original post. > Gordon - N1MGO > >> On 11/02/2017 02:20 PM, Bob McGraw K4TAX wrote: >> Most authorities I read and follow strong

Re: [Elecraft] KPA1500 with P3 Transmit Monitor

Most authorities I read and follow strongly suggest one NOT use a tuner between the radio and the amp. This "old wives tail" goes back to the time many to most early tube type grounded grid amps did not have a tuned input.  Seems that hams today choose to believe and practice old and outdated

Re: [Elecraft] My Take on CW

I started in ham radio as a Novice in 1959.  That required 5 WPM, crystal control, 75 watts and only CW.   Finally up to 13 WPM and a General license and later to an Extra class license which I hold today.    Over the 58 years that are now behind me,  I drifted away from CW to a much easier

Re: [Elecraft] [K2] Frequency Calibration using WWV Audio Tones

See the article "Transmit and Receive on Frequency" as published in Sept. 2015 QST. 73 Bob, K4TAX On 10/31/2017 1:17 PM, Steve Kavanagh via Elecraft wrote: I was wondering if anyone had tried doing the reference oscillator frequency calibration for a K2 without the rather troublesome step

Re: [Elecraft] (KPA-500) running on 110v

Don makes very good points here.   Our hour built in 1979 is wired with #12 for all outlets and lights.  HOWEVER, the outlets and switches all used the"backstab" connections.   In my efforts to resolve an issue, I found that several showed signs of heating.  Therefore, I replaced every outlet

Re: [Elecraft] Freq Onwership

I just avoid 20M.  Problem solved.  There's other bands which respond as well with fine gentlemen operators, 17M and 30M as examples.  If you've not tried 60M, it is a wonderful relief from the vocabulary found on 40M. 73 Bob, K4TAX On 10/29/2017 1:47 PM, Bill Johnson wrote: The ownership

[Elecraft] OT - Screw & Bolt Torque

Here is one reliable source for screw torque. http://www.mgtd.ca/screw%20torque.htm Now, to get the proper torque tools and use them. 73 Bob, K4TAX On 10/29/2017 8:34 AM, Clay Autery wrote: It is possible that an explicit torque has never been calculated.  It is not a particularly hard

Re: [Elecraft] OT: LED Light Bulbs

t the ones used, did show issues with the LED units showing less than CFL's. 73 Bob, K4TAX On 10/24/2017 11:05 AM, Jim Brown wrote: On 10/24/2017 5:55 AM, Bob McGraw K4TAX wrote: When the transmitter was activated, the spikes of noise appeared.  With the transmitter off, the spikes

Re: [Elecraft] OT: LED Light Bulbs

The only time I've noticed RFI issues from CFL or LED bulbs is when they are being excited by RF.  I've measured 3 or 4 different ones of different brands and wattage ratings.  This was done using a fixture where by the bulb was mounted on a suitable surface in a socket with the transmit

Re: [Elecraft] K3 MSK441 six meters

Bob, K4TAX Sent from my iPhone > On Oct 21, 2017, at 4:25 PM, Robert . wrote: > > on __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] OT: LED Light Bulbs

As I understand a company can perform self certification. There seems to be no independent audit system. Thus if the company says it meets specs, then it meets specs. Bob, K4TAX Sent from my iPhone > On Oct 21, 2017, at 3:28 PM, Kevin Cozens wrote: > >> On 2017-10-21

Re: [Elecraft] OT: LED Light Bulbs

causing this. I did carefully checkout some Walmart "100 W" LED lights > before committing to them and they were fine. > > > _ > > 73, > > Jim - N4ST > > -Original Message- > From: elecraft-boun...@mailman.qth.net > [mailto:ele

Re: [Elecraft] OT: LED Light Bulbs

Makes me wonder if at all or how frequently production lots are evaluated to determine if they are in FCC Part 15 compliance. Otherwise, the approach "we evaluated one production lot, deemed it passed" {a.k.a - I saw it work once, ship it}  and then produced a million or so afterwards

<    5   6   7   8   9   10   11   12   13   14   >