[Elecraft] Feature request/question?

I need to use 24 MHz as an I.F. frequency for a transverter. In the XV config, the only I.F. choices are 21, 28 and 50. Any chance 24 could be added? I could use high power 24 MHz with an attenuator but I need to operate at 24.! Mhz which gives an out of band message. HNY to all the good

Re: [Elecraft] KPA1500 not the whole answer

I have the opposite - minimum space for antennas. I have a short (10 m long) rotary dipole and a Pixel Loop RX antenna about 10m away from it. The loop is vertically polarized and diversity really helps, even on 40 meters where the separation is only about 1/4 wavelength. Signals have a 'solid'

Re: [Elecraft] I need More RX Volume on my K3, has anyone run an external audio amp?

There's an AUD GAIN parameter in the CONFIG menu. If it is not already set to HI then try that first. Vic 4X6GP > On 1 Jan 2017, at 00:46, Harry Yingst via Elecraft > wrote: > > > I have the K3 and a pair of SP3 speakers > > When I turn down the RF gain and turn

[Elecraft] All the Amplifier Discussions

As I have been reading the various threads on Amplifiers over the past few days, I am struck by the incredible variety of topics and activities that bring all of us joy in Amateur Radio. For some of us, it is the ability to make contacts with very little power. For others, just running a

Re: [Elecraft] Amplifiers in general

On Sat,12/31/2016 6:29 PM, Bill Frantz wrote: We concluded that the very low harmonic and IMD distortions of the sound system made it easier to decode the (undistorted) acoustic speech. That system was highly respected by auidio pros at the time. The primary reason it was so clean was that

[Elecraft] Elecraft CW Net Announcement

Happy New Year, Winter keeps moving the sun northward. A solar breeze is replenishing the ionosphere and making quite a racket. Hopefully the signals can overpower the noise. Any change in propagation will only be better. After a few days of thaw the chill came back along with

Re: [Elecraft] K3 and Ten Tec Titain 465 hook up

I've been using Titans with my K3s for years. Works great. The Titan is a nice amp. All it needs is an RCA-RCA cable from the K3 amp key out to the PTT in of the Titan. QSK works fine, but if you work a LOT of CW, it's possible to wear out the main T/R relay. No problem, they're easy to find,

Re: [Elecraft] Please do a KPA1500

Audio processing can create distortion only in the passband of the crystal filters. It may sound varying degrees of awful, but it doesn't cause splatter. You've got to overdrive an RF stage or have that stage drive a mismatched load, or drive it with AGC engaged, or stuff like that to generate

[Elecraft] Feature request/question?

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[Elecraft] KPA1500 not the whole answer

Full K3s KPA500 K line setup here. I have 10 acres with 5 acres of it in antenna farm. My K3s with subreceiver, used almost exclusively in diversity receive mode, which works so great, that I think if everybody was using one, 1500 watt amps would be a waste of resources. I knew

Re: [Elecraft] K3 and Ten Tec Titain 465 hook up

On 12/31/2016 7:04 PM, John McBee wrote: I have just purchased an Ten Tec Titan 425 amplifier and was wondering the best way to hook it to my K3? I would like to be able to use QSK with the amp too. Just don't want to mess anything up, so thought I would ask here first. Thanks in advanced

Re: [Elecraft] Amplifiers in general

Bill, I also experienced a very quality system at a friend's house ~ 1976 and it was amazing. A wall of speakers and beautiful volume, concert level and able to talk. Reminds me of my Dynaco A60 speakers and amp. This was the best audio at the time and I starved to save $'s to purchase this

[Elecraft] K3s low power at first

All equipment factory built/aligned K3s to KPA500 using KAT500. Had the setup about 6 months now. When first tuned up on any band SSB or CW mode, with 5 watts K3 drive, it takes a short transmission at 15 watts K3 drive for the amp to ramp up to 500 watts as read on the KPA500. It stays

Re: [Elecraft] Amplifiers in general

A group of about 5 of my friends and I noticed this effect at a early 1970s Grateful Dead concert at the San Francisco Cow Palace. They were testing a new sound system which came to be called "The Wall of Sound". While the music was definitely loud, very loud, we could have a normal

Re: [Elecraft] I need More RX Volume on my K3, has anyone run an external audio amp?

Thank You The specs say that the SP3's are rated at 15 watts so I should be able to find a small stereo amp From: Mel Farrer To: Harry Yingst ; Elecraft Reflector Sent: Saturday, December 31, 2016 6:10 PM

Re: [Elecraft] ERR TXGN

Jim, You do need a good 50 ohm dummy load to run the TX Gain Calibration. If it fails with K3 Utility, you can try running it band by band as indicated in the manual. After having success with the manual calibration, try running it from K3 Utility again. If you do not have a good 50 ohm

[Elecraft] K3 and Ten Tec Titain 465 hook up

I have just purchased an Ten Tec Titan 425 amplifier and was wondering the best way to hook it to my K3? I would like to be able to use QSK with the amp too. Just don't want to mess anything up, so thought I would ask here first. Thanks in advanced for any suggestions.. 73' John KM5PS

Re: [Elecraft] k3 problem

Bob, He will have to wait until Tuesday - Elecraft is closed Monday. In the meantime, he should look at what is enabled for his transmit filters using K3 Utility. He needs to know what filters are installed. There should be a sticker on the inside of the top cover indicating which filters are

Re: [Elecraft] KX1 Questionj

Ron, That indicates Upper Sideband. It will rotate between L, U and NOR. To change it hold the outside two blue buttons. When in NOR (CW) mode, there is no designator displayed. See page 66 in the manual. 73, Don W3FPR On 12/31/2016 7:04 PM, Ron Reis wrote: Just got my KX1 together and

[Elecraft] ERR TXGN

Completed building my K3S (2.7kHz stock filter only, KP3A 100 W PA). Carried out 5 W and 50 W calibration successfully. Subsequently upgraded Software successfully. Shut down but next day noticed power out was low. Re-run Calibration but now it fails even on 5 W showing "ERR TXGN". I'd

[Elecraft] k3 problem

Well I guess he will have to call on Monday to Elecraft to get help.. over the phone will just not work.. Thanks to all who replied!!    73s Bob W5RG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] New Years 2017

If anyone is in Louisiana around 2359 31 December 2016, my friends and I will have cocaine and hookers at the El Dorado casino in shreveport he he heI'm just kidding ... I'll be on 30M cw through the night at my deer lease... looking for dx!!! -- *Sincerely,* *William B. Taylor*

Re: [Elecraft] Please do a KPA1500

The Expert 1.3k is sold with the 15 db restriction. But anybody can do a low power mod and it is legal. ARLL Review (July 16) shows IMD at 1.3 KW level: 3rd/5th/7th/9th (14 MHz, 1300 W PEP): –31/–39/–57/–55 dB. Seems not to be worse than Acom 1500. The IMD as measured are misleading. Take

[Elecraft] KX1 Questionj

Just got my KX1 together and checking the receiver. I noticed that when selecting 7mhz i see a "U" on the leading character of the LED. Do not see this on 14mhz. Can't find any reference to this in the manual. Can anyone tell me if this is normal? 73 Ron KB6K

Re: [Elecraft] I need More RX Volume on my K3, has anyone run an external audio amp?

Yes, I have an old SS 15 watt HIFI amp I use to feed a small HIFI speaker under the desk.  Works great and I can fill the room with CLEAN audio. Mel, K6KBE From: Harry Yingst via Elecraft To: Elecraft Reflector Sent: Saturday,

Re: [Elecraft] k3 problem

Bob, The list of error codes start on page 68 of the K3 manual. ERR EFX does not exist, but ERR TXF is valid - it says the filter configured for transmit is not valid. That is relatively easy to see with K3 Utility - Configuration tab, Configure Xtal Filters. The filter for CW, DATA, SSB must

Re: [Elecraft] k3 problem

As per the K3 Manual Rev D10, Page 70 ERR TXF Invalid transmit crystal filter bandwidth The crystal filter selected for TX (with CONFIG:FLTX) is either too narrow or too wide. You must specify a filter that is 2.7 or 2.8 kHz wide for CW/DATA/SSB, 6 kHz for AM, and 13.0 kHz for FM). That

Re: [Elecraft] I need More RX Volume on my K3, has anyone run an external audio amp?

I use an amplified pair of computer speakers. 73, Roger On 12/31/2016 5:46 PM, Harry Yingst via Elecraft wrote: I have the K3 and a pair of SP3 speakers When I turn down the RF gain and turn on the NR (to clean up the band noise) I run out of Audio (too quiet) to hear the weaker signals.

[Elecraft] I need More RX Volume on my K3, has anyone run an external audio amp?

I have the K3 and a pair of SP3 speakers When I turn down the RF gain and turn on the NR (to clean up the band noise)  I run out of Audio (too quiet) to hear the weaker signals. I was curious if anyone is running a small external amp between the K3 and the speakers to help bring up the

[Elecraft] k3 problem

Hi Fellows.. I have a friend that I'm trying to help.. he is 85 years old and has a k3. He turned on the radio today and got a err exf message... or he may have said err txf. not sure.. I told him I would try to help him.. he is in OKLA and I'm in Florida so it is not easy.. Can someone please

Re: [Elecraft] Amplifiers in general

That's what I was thinking. On 12/31/2016 11:43 AM, Charlie T, K3ICH wrote: Using your same logic, why run more than a couple watts output? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] Please do a KPA1500

In fact.. a nice Elecraft Combiner added to the k-line then why buy one when you can have 2 such a great idea :-). Everyones happy. HNY Chris N6WM -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ken K6MR Sent: Saturday, December

Re: [Elecraft] Amplifiers in general

I believe you're correct Clay. I think our ears/brain can integrate the overall signal, and the noise, if more or less random, will recede into the background. The desired CW signal will then stand out. I suspect that, were you to key noise similar to the background noise and that filled

Re: [Elecraft] Please do a KPA1500

So buy another KPA500 and combine them. Easy peasy. Ken K6MR From: Scott Manthe Sent: Saturday, December 31, 2016 12:22 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Please do a KPA1500 I think a KPA1000 would be pretty

Re: [Elecraft] Amplifiers in general

Fred, I agree with all you say but still when reading a signal in the noise on 160M believe me a dB can help in recognizing a call sign. I often think that operating on TB is some what like operating on VHF/UHF. It is certainly a struggle with noise. 73 Doug EI2CN

Re: [Elecraft] Please do a KPA1500

I think a KPA1000 would be pretty popular if priced appropriately. I love my KPA500, but a little extra oomph would be nice now and then. 73, Scott N9AA On 12/31/16 10:39 AM, j...@kk9a.com wrote: Since I sometimes bring my station to the Caribbean, one of the main reasons that I switched to

Re: [Elecraft] Amplifiers in general

Let me posit a SWAG on why this case APPEARS to buck the math in reality I submit that all "noise" is not equal. I'm guessing that you can hear a radio transmission mathematically below the apparent noise level because it is "atypical" or "organized noise" as opposed to the "noise" in the

Re: [Elecraft] Amplifiers in general

David, Super point. 73, Bill K9YEQ -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dm...@nexicom.net Sent: Saturday, December 31, 2016 12:58 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Amplifiers in general An increase in power of

Re: [Elecraft] Amplifiers in general

Please let me correct my typo: 100 mW is 30 dB down, not 40. Correct hand, wrong finger. 100 mW should be close to S0, 2 S-units into the noise. 73, Fred K6DGW Sparks NV USA Washoe County DM09dn On 12/31/2016 11:25 AM, Fred Jensen wrote: One can do this with the NCDXF Beacons ... they

Re: [Elecraft] Amplifiers in general

One can do this with the NCDXF Beacons ... they change in four 10 dB steps, 100 W, 10 W, 1 W, and 100 mW. No sunspots right now, but you might be able to hear one or two of them on 14100. Most interesting thing I notice is, while the 100 W signal may be S6 in S2 noise, I can still hear the

Re: [Elecraft] Amplifiers in general

An increase in power of another station is not always well perceived but the difference is there. I've heard guys turn amps on and off and you really hear no differencethis is because your AGC is compensating.the difference may actually be big your just not hearing it. Sometime

Re: [Elecraft] Amplifiers in general

Dear OMs, There are times when I am sure that 1 dB would make a difference on 160M. 73 Doug EI2CN -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Charlie T, K3ICH Sent: 31 December 2016 18:44 To: elecraft@mailman.qth.net Subject:

Re: [Elecraft] Amplifiers in general

Using your same logic, why run more than a couple watts output? It can easily be heard around the world if conditions are right. Anything more is a waste of power AND money. 73, Charlie k3ICH -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of

Re: [Elecraft] Amplifiers in general

I'd just like to add that, averaged over a period of time, say a whole contest, a small difference in power can have a significant effect. While a dB or so might be very hard to detect in one QSO, over a few hundred it makes a difference. On average, you get through a bit more often, more

Re: [Elecraft] {OT} - Variation on use of a coaxial switch

Don, I agree with your 40 dB isolation number, and would expect that to be fairly conservative, since that would result in a +10 dBm level at the non-operating receiver. The ARRL Lab tests all product review receivers for IMD response at up to +10 dBm input and there have never (to my knowledge)

Re: [Elecraft] KXPA100 with PX3

Yes, the power light is on. When I'm in Basic mode (PA MODE OFF), the KXPA100 draws 12 amps key down at 13 VDC. The power output is 100 watts. With PA MODE ON, there is no output and the current drawn is 8 amps at 13 VDC. The power is dissipated through the heat sink. Hope this helps.

Re: [Elecraft] Amplifiers in general

On Sat,12/31/2016 7:01 AM, Bill wrote: I have always been under the impression the doubling of output power will result in a power gain of 3 db. Right. And, that 3 db gain is the least signal increase noticeable at the receiving point. Wrong. As an audio professional, I had to learn a

Re: [Elecraft] KXPA100 with PX3

Ray, I had a simular problem and the solution was replacing a bad cable. You might want to contact Elecraft support . 73, Bill KT5TE On Friday, December 30, 2016 2:29:08 PM CST Ray W2RS via Elecraft wrote: > Ryan, > > > Yes, I am using the correct adapter cable. > > > 73 Ray W2RS > > >

[Elecraft] Please do a KPA1500

Since I sometimes bring my station to the Caribbean, one of the main reasons that I switched to the Elecraft line was for the size and weight. I have a KPA500 and an it is an awesome amplifier but I would like a little more power at times. I considered the Expert 1.3k that many with similar needs

Re: [Elecraft] {OT} - On Professional Error

And computer programmers relabel their “bugs” as new features. > On Dec 31, 2016, at 5:56 AM, Dauer, Edward wrote: > > Actually, it varies among the professions. > > It has been noted in the professional liability field that while doctors get > to bury their mistakes, and

[Elecraft] Amplifiers in general

I have always been under the impression the doubling of output power will result in a power gain of 3 db. And, that 3 db gain is the least signal increase noticeable at the receiving point. KPA500 outputs 500 Watts - 1000 Watts would give an output gain of 3 db (over the KPA500) and 1500 Watts

[Elecraft] Heatsink fro K144XV

A heatsink for the left side panel (from the front) of the K3(s) above the handle? Someone said they had seen one advertised. JIm, W4ATK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] {OT} - On Professional Error

Actually, it varies among the professions. It has been noted in the professional liability field that while doctors get to bury their mistakes, and no-one understands whether a lawyer made a mistake or not, all that architects can do is plant shrubs. Ted, KN1CBR (one of the above)

Re: [Elecraft] KXPA100 with PX3

The setting is OFF . -Original Message- From: Ryan Noguchi To: rsoifer1 ; elecraft Sent: Fri, Dec 30, 2016 1:35 pm Subject: Re:n [Elecraft] KXPA100 with PX3 >Further to my last email, when I am in Basic mode, with PA MODE

Re: [Elecraft] Please do a KPA1500

I have Expert 1.3k that I use with KX3 for > 1 KW. The Expert 1.3K also violates the 15 dB gain limitation rule and is a real garbage generator. Expert's own test data in their application for FCC approval showed IMD at -27 dB at 800 W! For your 1 KW, each of the IMD products are probably

[Elecraft] FS: Remoterig RRC-1258MkIIs K3-Twin, UK Only

I am selling my RRC-1258MkIIs Twin as they are no longer needed for transatlantic Radio Control. Recently tested to control a remote K3 with a subrx with a local K3. Comes with the set of radio cables I used. No power supplies (as the radio power supply was used to power them) or Ethernet cable.

Re: [Elecraft] [Moon-Net] Elecraft transverter

This topic started on the Moon-Net reflector but I see it has migrated over here. Most of you probably know that I run a business building kits that started with the DEMI transverters. The 50-MHz thru 432-MHz transverters all can be equipped with the VHF-APOLLO synthesized LO, which is a