Re: [Elecraft] Antenna static charge precautions - any tips?

Good demo. To that cause, I'd like to share a true experience that happened to me as part of a group of Explorer Scouts on Field Day one year. I was an advisor, and had installed a ground rod, and connected a coax switch to it so that we could ground our antennas if weather threatened. The swi

Re: [Elecraft] Small got-ya to watch for when doing the K3 12VDC Out Current Mod

Thankyou Alan, I guess for those like the OP and probably myself, that don’t like to get into the insides without a good reason; Running the K3 at 15v (HD pwr cable too) works out great esp with all the other benefits, hence my observation to those hesitant to do the mod. Adrian ... vk4tux ---

Re: [Elecraft] KX3 with a long wire antenna

Conversion to metric is at your browsers finger tip: go to google.com and enter "28 feet in meter". As a side note, Google will also convert currencies for you: "249 EUR in USD". __ Elecraft mailing list Home: http://mailman.qth.net/mailm

Re: [Elecraft] Small got-ya to watch for when doing the K3 12VDC Out Current Mod

On Sun, 2012-09-09 at 20:50 -0700, vk4tux wrote: > Ok, I was thinking the P3/SVGA drew less current at 15v than 12v, due to the > 5/3.3/2.5/2.2 v pwr supply setup requiring less current at 15v input than it > does at 14v input or less. That's right. > I checked the K3 output with a 20 ohm/50w var

[Elecraft] Antenna static charge precautions - any tips?

Hi, all! 10 years ago (in 2001) YL and myself changed our home location and our place of choice is very thunderstorm addictive!!! So, after burning an Drake TR7, I installed, on the antenna line a box with a big relay, turning on with whatecer 12 V PS I turned on swithching between a chock (2.5

Re: [Elecraft] KPA500 Help

Thanks everyone for comments or tips. I figured it out where I had a RCA "Y" connector splitting from the K3 Key Out between the Telepost LP-100A wattmeter and Pixel RF Pro-1B receiving antenna and it was bringing down the keying signal. I took the Pixel off and both the K3 and KPA500 works great

Re: [Elecraft] Antenna static charge precautions - any tips?

> > Unusual to see that as an issue without using an amplifier, however the >high antenna feedpoint impedance on such setups produce a high voltage at >that point, despite the atu proving a 50 ohm impedance match to the >transceiver. > I agree, and since I am on

Re: [Elecraft] Antenna static charge precautions - any tips?

> > From: Don Wilhelm > >I do not understand your concern for the K3.  The KAT3 was working to >produce a low SWR (and a 50 ohm load) for the K3, so that condition was >apparently satisfied.  The high voltage condition existed only at the >antenna which was

Re: [Elecraft] Antenna static charge precautions - any tips?

Scott, You will have to "do the math" to figure out the actual voltage and current of the components. The formula is the standard I squared R power losses, or the IR voltage or some other aspect of ohms law. Gas discharge tubes will conduct when the peak voltage exceeds its rating. If your a

Re: [Elecraft] JT65 on the KX3: improved VFO temperature stability

On Tue, Sep 4, 2012 at 11:44 AM, Wayne Burdick wrote: > I have a new revision of KX3 field-test firmware available == Any more news on this? I'm rarin' to go. -- http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 ___

Re: [Elecraft] Small got-ya to watch for when doing the K3 12VDC Out Current Mod

Ok, I was thinking the P3/SVGA drew less current at 15v than 12v, due to the 5/3.3/2.5/2.2 v pwr supply setup requiring less current at 15v input than it does at 14v input or less. I checked the K3 output with a 20 ohm/50w variable rheostat and it trips at 0.6amp or 600mA on my fluke 87. W

[Elecraft] Elecraft CW Net Report for September 9th & 10th, 2012

Good Evening, We had two good nets on a couple of weak bands. QSB on both but the lion's share of QRN on 40 meters. Someone, somewhere was getting a thunderstorm. Here we are getting rain but it is slow and without wind. Propagation was not great last week and it has held through the w

Re: [Elecraft] KX3 with a long wire antenna

Juan, For 40 meters and above, I would suggest the antenna and counterpoise recommended in the KXAT1 manual - 24 to 28 foot radiator, 16 foot counterpoise. Sorry, but I do not have the conversion to metric handy. 73, Don W3FPR On 9/9/2012 11:11 PM, TG9AJR Juan Munoz wrote: > Hi, > > I will on

[Elecraft] KX3 with a long wire antenna

Hi, I will on a trip and will picking up my KX3 and will like to do some test on the air, not sure what kind of antenna I get but I was thinking on a long wire, has anyone experiment with this kind of antenna and the KX3 and any particular length ? Thanks 73 DX de Juan TG9AJR ___

Re: [Elecraft] Small got-ya to watch for when doing the K3 12VDC Out Current Mod

What most people notice is that the P3 will switch off after a period of operation when the resettable fuse finally heats enough to open. Your K3 may have a defective resettable fuse in the 12V output line. 73, Ron AC7AC -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:e

Re: [Elecraft] Antenna static charge precautions - any tips?

OK, the thread triggered me.  At my station on top of a flat top mesa with a 180 foot tower and EDZ antennas on 160 and full wave inverted V antennas that do not have an DC ground.  I do static discharge a little different.  I use open frame relays to do all of the ladder line switching of the i

Re: [Elecraft] Using the KX3 to control a remote KX3, K3, or K2 (limited and experimental)

Thanks Wayne and everyone else who sent direct responses. I am thinking that I'd use the remote rig boxes if I tried remoting so audio and cw keying should work as well as the k3/k3 remote. One of my goals is to do some remote contesting so the reduced control set and slower rig control may not f

Re: [Elecraft] Small got-ya to watch for when doing the K3 12VDC Out Current Mod

I have the kit 12v output mod kit still sitting in the shack draw unfitted, and have been running the P3SVGA module > first in vk since they started shipping. I have had no issues and run the K3 at 15v. -- View this message in context: http://elecraft.365791.n2.nabble.com/Small-got-ya-to-wat

[Elecraft] Small got-ya to watch for when doing the K3 12VDC Out Current Mod

I set some time aside this weekend to install a second receiver in my K3, and to perform the 12VDC Out Current Modification since I was adding a SVGA card to my P3 (which requires more current than the stock 0.5 Amp output). My comments pertain to the latter. Elecraft provides the modification ki

[Elecraft] KAP 500 Help PS

PS: When changing bands manually on the KPA500, it doesn't change to the corresponding band on the K3. Thanks and 73, Delwyn KH6DC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.q

Re: [Elecraft] SSTV Reception on the K3

H Mark I play a fair bit if SSTV both using analogue and digital. for analogue (Martin, Scottie etc. DM780 does just fine. I cant really advise on how to implement switching mode for DM780 but Data A would be the best choice. personally I am using MMSSTV and manually change rig modes

[Elecraft] KPA500 Help

Aloha Everyone, Just finished building the KPA500 kit and it appears to be working (no smoke and HV voltage withing range).I have the Auxiliary cable connected to the AUX on my K3 and the key line interrupter since I'm using the Key Out to control the Telepost LP-100A wattmeter and a Pixel

Re: [Elecraft] K3 & Ham Radio Deluxe

Yes, that's the answer. The problem developed for me today. I consulted the archives and found the same answer specified in this response. I had done some work on the memory settings earlier in the afternoon. I have no idea how that may have changed this setting but it doesn't matter. Changing t

Re: [Elecraft] Antenna static charge precautions - any tips?

Unusual to see that as an issue withought using an amplifier, however the high antenna feedpoint impedance on such setups produce a high voltage at that point, despite the atu proving a 50 ohm impedance match to the transceiver. Baluns rated at 3-5 KW are so only at 1:1 swr. When swr raises to 5:

Re: [Elecraft] KX3 VFO Encoder and a Post Script

Yes, a small amount is normal on the KX3 encoder. Eric www.elecraft.com _..._ On Sep 9, 2012, at 5:23 AM, Joel Black wrote: > Before I email Elecraft support, has anyone noticed any side-to-side > play in their KX3 VFO encoder? I noticed it this morning while tuning > around listening to

[Elecraft] Regarding K3 close-in phase noise vs. the Kenwood TS-590 and Flex radios

Phase noise was recently discussed on the K3 Yahoo group, and I thought I'd add my two cents. Or maybe three :) The K3's phase noise at 1 kHz is pretty much state-of-the-art for a DDS (direct digital synthesis) reference driving a wide-frequency- range, low-noise PLL (phase locked loop). We t

Re: [Elecraft] Antenna static charge precautions - any tips?

Hi all; > > From: Bob Cunnings > >Check the K3 schematics - there *is* a static bleed resistor at each >antenna input, including the KXV3 Rx Ant In jack. > >Gas discharge tubes are also present in the KANT3, KAT3 and KRX3. > >Bob NW8L >I certainly am not an expe

Re: [Elecraft] Antenna static charge precautions - any tips?

Which reminds me: I have ICE lightning protectors on my feedlines where they come into the shack. These have a built-in choke across the side that goes to the antenna, which drains static charges. See The only disadvantage of th

Re: [Elecraft] Antenna static charge precautions - any tips?

It seems to me that with an antenna switch that doesn't short the unselected antennas by default, like the DX Engineering RR8A-HP remote antenna switch, it might be advisable to either set the switch up to short the unselected antennas or add a resistor across them individually. Otherwise when

Re: [Elecraft] Antenna static charge precautions - any tips?

Keep in mind that the resistors (or a choke) only provide PARTIAL protection. If you connect an antenna to the rig that has accumulated a significant voltage - which can happen in a couple of minutes in dry windy conditions, in a rainfall, or even during a snowfall, you'll still damage the rig when

Re: [Elecraft] [KX3] Question: KX3 and K3 Exclusive-Or ?

Wayne, Thanks for the message below. Actually, I was thinking of more subtle differences in features between the two. I own a K3 and I will definitely be buying a KX3 (probably this Fall). But, I watched a very nice video by Bob Nagy (AB5N) on the features of the KX3 (http://www.youtube.com

[Elecraft] WANTED KAT 100-1 or KAT100-2

I am lookingto buy a used or unbuilt KAT 100-1 OR KAT 100-2, Tell me what you got I pay with Paypal so quick payment, OH yes I will pay the 3% paypal charge too. Thank you 73 Bill W0WFH   Please don't answer to forum answer direct PLEASE w0...@yahoo.com or call my cell 573-291-5625  ___

Re: [Elecraft] Antenna static charge precautions - any tips?

I was glad to see my K3 had the 560k resistors in place. I checked the KX1 and don't see any installed... Sooo... looks like its a good idea to place them somewhere in the feedline after the antenna switcher...or maybe within the the antenna switcher box. Really glad this subject came up cause New

Re: [Elecraft] Antenna static charge precautions - any tips?

Phil, That would be true only under certain conditions What conditions are you referring to? Your post was void of any conditions. 73, Don W3FPR On 9/9/2012 4:02 PM, Phil Townsend wrote: > So, the 22k - 100k carbon resistor is not needed and therefore would be > redundant? > > Phil > Santa Fe >

Re: [Elecraft] Antenna static charge precautions - any tips?

What Don was trying to express was that if you simply add a resistor to your own antenna, you don't need to worry/wonder about whether or not it is included in a particular transceiver. It may be good engineering practice to add it to a transceiver one is designing. However, if you do it yoursel

Re: [Elecraft] West Mountain COMSPKR Question

One last follow-up. I tried 12VDC on my speakers and I was blowing 5A fuses. I checked with one of the guys who wrote me off-list and he double-checked his speakers and found they were running on 9VDC. I tried 9VDC and that is working fine. Just thought I should correct the earlier info I poste

Re: [Elecraft] Antenna static charge precautions - any tips?

> Why be concerned about whether or not each and every transceiver adds a > static bleed resistor across the antenna... Well...perhaps because the addition of an internal high-ohm static bleed resistor at *any* radio set's antenna connection is trivial yet very good engineering practice that has

Re: [Elecraft] Antenna static charge precautions - any tips?

So, the 22k - 100k carbon resistor is not needed and therefore would be redundant? Phil Santa Fe __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraf

Re: [Elecraft] Antenna static charge precautions - any tips?

Why be concerned about whether or not each and every transceiver adds a static bleed resistor across the antenna, just bite the bullet and add one to each feedline coming into the shack and forget the "tooth-mashing" that comes about wondering where it should be done. I for one feel that it is

Re: [Elecraft] Antenna static charge precautions - any tips?

Bob wrote: > Check the K3 schematics - there *is* a static bleed resistor at each > antenna input, including the KXV3 Rx Ant In jack. What about the KX3? There are no published schematics yet, AFAIK. 73, Mike / KK5F __ Elecraft mailing

Re: [Elecraft] West Mountain COMSPKR Question

I got a couple of responses off-list saying they can be run off 12VDC so that's good enough. Wanted to let folks know that my question was answered. Thanks... Dave K8JDC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/list

[Elecraft] West Mountain COMSPKR Question

Hi all, I know some folks on here are using the COMSPKRs with Elecrafts so I thought I would ask a quick question. I picked up a pair at a hamfest today to try with my K3 but I must have been half-asleep because I didn't catch that the power supply was not included. I need to know what input

[Elecraft] Fwd: Re: Antenna static charge precautions - any tips?

On 9/9/2012 6:28 AM, hawley, charles j jr wrote: > Which begs the question...why isn't a 100K across the antenna jack in the > original design? > BTW, I use a choke across the antenna leads. Disadvantage of a choke is that it can form a resonant circuit with the capacitance of the antenna/antenna

Re: [Elecraft] Antenna static charge precautions - any tips?

Ha, ha! A simple check is to terminate the TX in a dummy load, then add the choke and see if the SWR changes significantly on any of the bands where you might transmit. 73, Ron AC7AC -Original Message- From: hawley, charles j jr [mailto:c-haw...@illinois.edu] Sent: Sunday, September 09

Re: [Elecraft] [KX3] Question: KX3 and K3 Exclusive-Or ?

Phil Hystad wrote: > Is there a comparison of features in the KX3 that are different (in > an improved way) then the K3? And, is there a list of useful > features of the K3 that are not in the KX3 (ignoring things like > power out or current 2-meter ability)? The KX3 is, generally speakin

Re: [Elecraft] [KX3] Expected 100-watt amplifier for KX3 ?

Yes, the KXPA100 will have an optional KXAT100 ATU module with the same matching range as the KXAT3 internal tuner. The ATU module will fit in the same enclosure. If the KX3 detects that a KXAT100 is in the system, it will automatically put the KXAT3 into bypass mode. 73, Wayne N6KR On Sep

Re: [Elecraft] Antenna static charge precautions - any tips?

Check the K3 schematics - there *is* a static bleed resistor at each antenna input, including the KXV3 Rx Ant In jack. Gas discharge tubes are also present in the KANT3, KAT3 and KRX3. Bob NW8L >Which begs the question...why isn't a 100K across the antenna jack in the >original design? >BTW, I u

[Elecraft] (no subject)

Check the K3 schematics - there *is* a static bleed resistor at each antenna input, including the KXV3 Rx Ant In jack. Gas discharge tubes are also present in the KANT3, KAT3 and KRX3. Bob NW8L >Which begs the question...why isn't a 100K across the antenna jack in the >original design? >BTW, I u

Re: [Elecraft] [KX3] Expected 100-watt amplifier for KX3 ?

Dick, Thanks for the quick reply. I just (a few moments ago) downloaded the KX3 brochure and saw that the KXPA100 includes the built in ATU option. I should have read that before asking my question. 73, phil, K7PEH On Sep 9, 2012, at 9:51 AM, Dick Dievendorff wrote: > From http://elecraft.

Re: [Elecraft] [KX3] Expected 100-watt amplifier for KX3 ?

>From http://elecraft.com/KX3/kx3.htm KXPA100 External 100-Watt Amplifier Our high-performance KXPA100 home/mobile amplifier seamlessly integrates with the KX3 as well as other popular 5- to 10-W transceivers. It has its own internal ATU option (KXAT100) with dual antenna jacks. 73 de Dick, K6KR

[Elecraft] [KX3] Expected 100-watt amplifier for KX3 ?

When the 100-watt amplifier is made available for the KX3 will it include (as an option?) a 100-watt ATU? I presume in the same physical box as the amplifier? Or, would it be a separate box or separate product (different from KAT100)? I am not thinking of an ATU for mobile. For mobile, I am

[Elecraft] [KX3] Question: KX3 and K3 Exclusive-Or ?

Is there a comparison of features in the KX3 that are different (in an improved way) then the K3? And, is there a list of useful features of the K3 that are not in the KX3 (ignoring things like power out or current 2-meter ability)? If anyone has such a list or can provide such information it w

Re: [Elecraft] Antenna static charge precautions - any tips?

Ron wrote: > Many antenna systems do not require this protection. They are shunt fed > which provides a direct-current short across the feed line at all times. > > Chokes may work fine, but all chokes have some parasitic capacitance across > the windings which means they have a series resonances s

Re: [Elecraft] Portable antennas for use in UK

Dennis, Here's another vote for a fiberglass pole and wires. I have a DK9SQ pole that was imported by N8ET/KangaUS that I have used for many years. It's very flexible (both mechanically and operationally) and you can usually sneak them on an airliner as your "personal item." I believe that ther

Re: [Elecraft] Antenna static charge precautions - any tips?

I'll keep an eye on it :) Sent from my iPhone On Sep 9, 2012, at 10:53 AM, "Ron D'Eau Claire" wrote: > Many antenna systems do not require this protection. They are shunt fed > which provides a direct-current short across the feed line at all times. > > Chokes may work fine, but all chokes hav

Re: [Elecraft] Antenna static charge precautions - any tips?

Many antenna systems do not require this protection. They are shunt fed which provides a direct-current short across the feed line at all times. Chokes may work fine, but all chokes have some parasitic capacitance across the windings which means they have a series resonances somewhere across the R

Re: [Elecraft] K3: 5W TX Gain Cal Failure ...

Thanks Bob and Don (Don that's two I owe, you helped me in the past on my K2 build :-) - I had FL5 selected instead of FL1 (2.8), which would explain things (FL5=250Hz). 5W Cal now completed successfully. Thanks! Ken, G0RVH -- Ken Dailey On 9 Sep 2012, at 13:34, Bob Wolbert, K6XX wrote: > Y

Re: [Elecraft] Antenna static charge precautions - any tips?

Short but interesting demo of antenna static discharge - good motivation - http://www.youtube.com/watch?v=hlSpZ-ffacA - (BTW, I've heard the FT-817 has a 22K resistor installed but don't know that for sure) On Sun, Sep 9, 2012 at 9:28 AM, hawley, charles j jr wrote: > Which begs the question..

Re: [Elecraft] Antenna static charge precautions - any tips?

Which begs the question...why isn't a 100K across the antenna jack in the original design? BTW, I use a choke across the antenna leads. Chuck, KE9UW aka Jack, BMW Motorcycles BMWMOA #224 From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth

Re: [Elecraft] Hello

If you are asking about the KX3 DVR, look at the errata sheet - it is not yet implemented. If you are asking about the K3, then look at the KDVR3 instructions. Many will appreciate it if you put the relevant Elecraft product in the subject line. There are many products and some have setup filte

[Elecraft] Hello

what is the procedure to use the voice recorder   Regards from Norman __ 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

Re: [Elecraft] [K3] Keyer Pause

I wasn't sure where the link was going 'til I realized it was "morse x". Nice article. 73, Mike NF4L On 9/9/12 1:40 AM, Dick Wiltgen wrote: > I was discussing this with Marshall Emm, N1FN. He graciously shared a link > to something that he wrote on the subject of keyer contacts and > conductivi

[Elecraft] KX3 is sold.

The KX3 I offered for sale has been sold, Thanks to all 73 Tim NZ8J __ 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 hos

[Elecraft] KX3 VFO Encoder and a Post Script

Before I email Elecraft support, has anyone noticed any side-to-side play in their KX3 VFO encoder? I noticed it this morning while tuning around listening to the WES. Yes, I tried tightening the nut holding the encoder - it was not loose. It is the shaft itself. If it's normal, I'm not worr

Re: [Elecraft] K3: 5W TX Gain Cal Failure ...

Ken, ERR TXF is Transmit Filter. Make certain you have selected the 2.7 or 2.8 kHz filter for transmit in both CW and SSB. 73, Don W3FPR On 9/9/2012 5:53 AM, Ken Dailey wrote: > I'm just building a new K3, and have come to the point of performing the TX > Gain Calibration. I have the K3 hook

Re: [Elecraft] Antenna static charge precautions - any tips?

> -Original Message- > From: zen...@netspace.net.au > Subject: [Elecraft] Antenna static charge precautions - any tips? > > ...I've just re-hung my 80m horizontal loop. With so much wire in the > air, I'm reviewing my static charge risks and how to reduce them... It looks to me like a lo

Re: [Elecraft] Portable antennas for use in UK

On 09/08/2012 10:06 PM, Dennis L. Haarsager wrote: > Just returned from another two weeks in the UK, this time bringing my KX3. > My wife and I visit her mother in the Borders area of southeastern Scotland > four (+/-) times a year. I duplicated Wayne Burdick's kit as closely as > possible, but it

[Elecraft] K3: 5W TX Gain Cal Failure ...

I'm just building a new K3, and have come to the point of performing the TX Gain Calibration. I have the K3 hooked up to the iMac via a KUSB, and the two are talking to each other fine. However when I run the 5W gain cal, I get this failure message : Elecraft K3 Utility for OS X Version 1.12.

Re: [Elecraft] P3 Question

Keep in mind that a lot of functions of the P3 will only work with the K3 -- like QSYing with the knob on the P3. Also -- you will only be able to use the P3 in tracking mode, not fixed-tune mode, unless the radio is a K3. And... will it be able to display actual signal frequencies or will it