[Elecraft] TX IMD problem

Hello All, I checked my K3's TX IMD today(K3 SN:1302), from 5W to 110W. Very good TX IMD when I set the output power to 35w( 50db), but very poor when I set it to 100w or 110w(20~18db). Any one can help? I have about 10 photos for this test, if interest I can send via email offline.

Re: [Elecraft] TX IMD problem

come up with as poor and/or as good numbers. What could be interesting is with what and how did you measure. / Jim SM2EKM - chen dave wrote: Hello All, I checked my K3's TX IMD today(K3 SN:1302), from 5W to 110W. Very good TX IMD when I set the output power to 35w

Re: [Elecraft] K3 unstable ssb power

Hi Juha, Are you use 2.7KHz filter? If so please check the shift freqency setting. One of my friend meet this problem on SSB mode, I checked his setting, found he did not correctly set the filter shift freqency. After set to correct value, no problem now. 73 de ba4rf,David 2010/3/29 Juha

Re: [Elecraft] K3 - RTTY Question

Hi Dick, Did you set the correct filter shift freqency in menu? I guess you use 2.7KHz SSB filter during RTTY transmit. 73 de ba4rf,David 2010/3/1 r...@aol.com This weekend I used my K-3 on RTTY for the first time. Using the K-3's AFSK-A mode along with N1MM MMTTY. I quickly noticed

[Elecraft] cqww 160m contest

Hello all, Anyone will take part in the cqww 160m contest? Waiting for K3 to K3 qso on top bands. 73 de ba4rf,David __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] cqww 160m contest

K2 for sure. See you in contest. 73 de ba4rf,David 2010/1/29 Dale Putnam daleput...@hotmail.com Would a K3 to K2 Q work? My K2 would like that. Good luck in the contest, hpe to cu there, --... ...-- Dale - WC7S in Wy Date: Fri, 29 Jan 2010 21:20:10 +0800 From: lowb...@gmail.com

Re: [Elecraft] Noisy K-3 Receiver

My suggestion: 1, upgrade to lastest f/w 2, tune the center of the passband to 1.4~1.45k(very important) Hope those will helps! all the best! David,BA4RF 2009/12/17 juergen piezo plebia...@yahoo.com Hi James This has been my impression for the last 2 years when using our clubs K3's I

Re: [Elecraft] Ethernet to Serial Converter

Hello Lee, I use Ethernet to Serial converter in home. it works. But still have several problem: 1, DTR RTS always HIGH, so I can't use it control CW/PTT --- maybe I should try another model. 2, You can use LP-bridge to share that com port, if your program all on one computer. --- But I

Re: [Elecraft] K3 Broken AF knob and bad service to get an replacement.

About 2 or 3 months ago, my friend BD7IP met the same problem during the normal operate(factory built). So I send email to elecraft to get the spare part for him and other K3 user in China, including me of course, after 2 weeks it arrived for free. They kindly send me 6 or 8 knobs. Good

Re: [Elecraft] [Elecraft_K3] K3 Beta Firmware Rev. 3.59: Misc. improvements

Yesterday night, I upgraded to 3.59, I don't know why, but upload speed is very very slow. Fortunately, firmware works just fine. All the best! David,ba4rf __ Elecraft mailing list Home:

Re: [Elecraft] K3 Screen

Yes, LP-Bridge works very well. Only issus I met is when I set K3's RS232 port for PTT/CW,and use SpectraVue(SDR-IQ), because SpectraVue always set RTS/DTR to high. so K3 will enter the transmit mode. Several months ago, I wrote an email to Larry N8LP, ask if it is possible to provide

Re: [Elecraft] K3 Line Out in Data Mode?

check your line out setting, maybe you set too low... 73 de ba4rf/Dave On Fri, Oct 16, 2009 at 10:40 AM, Jim Harris w...@q.com wrote: Hi, I've been able to transmit and receive PSK and RTTY in USB LSB on my new K3. That includes sound out of the Line Out on the rear panel to my

Re: [Elecraft] Need more than one serial port?

On Sat, Oct 10, 2009 at 11:23 PM, Paul paul.rei...@earthlink.net wrote: I am working on the BESCOTP award--the Bought Every Single Cable On The Planet award... The DB-9 serial port on the back of the K-3 here has a special cable running to the Steppir antenna controller. Now I need to access

Re: [Elecraft] FW 3.25 Comment

Same here. On 22-08-2009 I worked about 200 EU stations on 20m, when I use NR(any setting), I found it is very hard to understand the signals. 73 de BA4RF/David On Wed, Aug 26, 2009 at 9:50 AM, list1 li...@pituch.net wrote: Only on version FW 3.25 but used the NR for the very first time

Re: [Elecraft] K3: New Utility: S-meter calibration

I don't think most of us need this function. Mine K3 S meter is good enough. See the following table for my K3: uV S meter dBm(from) S meter dBm(to) 50 S9 -77 S9 -72 25 S8 -71 S9+5 -67 12 S7 -66 S9+10 -63 6 S6 -62 S9+15 -58 3 S5 -57 S9+20 -55 2 S4 -54 S9+25 -53 1 S3 -52 S9+30 -48 0.9 S3

Re: [Elecraft] K3 vs. Icom IC-7600

Hello all, Two weeks ago, in my friend's shack I compared K3,IC7700,IC7800(by ear ONLY), since there are no major contest in that day, so I can't say anything about dynamic range or something like that. IMHO, ic7700's DSP is best, 7800 DSP also better than K3. [A/B compare NR NB and

Re: [Elecraft] [K3] K3: Limit output power with KPA3?

My SS AMP need 30~45w to get 1200w or so, I never try to see what will happen if I set the input power to 100w. Even the AMP have some room for that(I think) -- it use 16*MRF150. By the way, ALC cable not used. So maybe it is a good idea to add this function -- I hope it will be limit

Re: [Elecraft] K3 Ref connector

Not so simple, at least you need change the TCXO to volt-controllable one. By the way, I ordered my 0.5ppm TCXO on local market, 25USD, works great, After that, K3 TX freqency err not over +-2HZ from 10C to 30C on 28MHz. So I think K3 is good enough for normal use. I have a GPS based 10MHz

[Elecraft] NR AGC

hello all, Anyone try this: listening a S7 to S9 signal (SSB) on any band with your headphone, at this time, try to enable NR, you will hear a really LOUD audio! Maybe need firmware upgrade to fix it. 73s David BA4RF __

Re: [Elecraft] K3 beta firmware rev. 3.06: all-mode squelch; SSB power control improved

Hello All, Anyone who have test equippments can confirm firmware rev.3.04/3.06 don't have power spine? 73s David / BA4RF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

Re: [Elecraft] [K3] K3 : no sound from speaker, no rx

You can also change the menu setting to enable the SUB-RX, you will get error message when you power on. Don't worry about that. At this time you should get the audio back. 73s David , BA4RF On Fri, Apr 3, 2009 at 12:40 PM, hb9brj hb9...@gmail.com wrote: Guys, i just completed the initial

Re: [Elecraft] KREF-EXT Option

A syntheiziser built around f.ex ADF 4001( it is also used in the K3 synth) for locking the VCXO Z1 (49.380 MHz) to an external 10MHz is simple in design. I want to know if KTCXO3 -1 is VCXO or standard TCXO? One approach after evaluation for a completely built in module is a EEPROM for the

Re: [Elecraft] Re: K3: ADC Ref calibration

My DMM say only 4.93v on pin 2 of the ACC connector. After calibration, supply voltage measure show me 13.7V, actually it should be 13.85v(test on K3 PS connector). During the 100w key down test, K3 shows 13.1~13.2v, but actually it should be 13.81V. I use DAIWA 32A PS So, I think 5V standard is

Re: [Elecraft] OT: new SS amps

I bought my 572Bs about ten years ago, 10USD for each one. After 5+ QSOs, I replaced it about 3 years ago. Not bad for 30USD investment. I was heard the new 572B is not as good as ten years ago, that is only because the dealer (in US?) need more cheaper 572Bs. All the best! David BA4RF On

Re: [Elecraft] K3 Power out

I got following data with IFR AM/FM 1600: K3 sn1302 POWER SET(W) POWER OUT（W) Difference ERR(%) 0 0.15 0.15 0.1 0.15 0.05 50.00% 0.2 0.3 0.1 50.00% 0.3 0.31 0.01 3.33% 0.4 0.4 0 0.00% 0.5 0.51 0.01 2.00% 0.6 0.63

Re: [Elecraft] K3 and IC- 2KL; negative voltage modification

I use IC-2KL and K3 in home, only use PTT cable. 40-50w to get 500w output. no problem at all. 73 de ba4rf/David On Sat, Dec 6, 2008 at 7:54 PM, OE5CSP-Chris [EMAIL PROTECTED] wrote: Original-Nachricht Datum: Fri, 5 Dec 2008 04:56:09 -0800 (PST) Von: Ron N9RC (via