Re: [Elecraft] Mast question

2016-05-27 Thread George Dubovsky
I would look for 3 used sections of Rohn 25, then figure out how to safely bracket it to your house, if possible. That should be do-able for somewhere close to your budget and certainly capable of holding up a G5RV. 73, geo - n4ua On Fri, May 27, 2016 at 9:19 AM, Reuben Popp

Re: [Elecraft] P3 Panadaptor

2016-04-02 Thread George Dubovsky
Well, it makes unassisted S/P a lot faster; just tune for the next blip. And, if you have directional antennas, like a NE beverage on 160 or 80, it helps to pre-qualify some signals as to multiplier possibility. And it certainly helps to see how close the interference is when you're running. I

Re: [Elecraft] Whole house surge protector at the main breaker?

2016-01-06 Thread George Dubovsky
For the last 20 years, I have had a Joslyn 1265-85 at the panel. I'm sure it's no longer available, but it's a 10x12x6 NEMA 4 box with fist-sized MOV modules inside with some monitoring circuitry on a small pwb driving 2 front panel LEDs. I am at the very end of a long rural 12.4 kV run in central

Re: [Elecraft] High SWR below 40 meters

2015-12-14 Thread George Dubovsky
Now that you have a KAT-3, you have 2 antenna ports. Is there any chance that the wrong one is selected for those bands? 73, geo - n4ua On Mon, Dec 14, 2015 at 4:27 PM, Jan Ditzian wrote: > My K3 has been having RF feedback problems with an 80 meter antenna. In >

Re: [Elecraft] Station setup

2015-09-16 Thread George Dubovsky
When I was faced with the need for more room - and access - I went "mobile". Here is the description of my current operating desk in the October 2013 issue of the PVRC newsletter: http://pvrc.org/Newsletters/oct13.pdf I'm a metalworker more than a woodworker... ;-) 73, geo - n4ua On Wed, Sep

Re: [Elecraft] K3S - Ordered Today!!

2015-09-06 Thread George Dubovsky
Well, I knew I was a big gun when I got my first K3 - a pair of 45's... ;-) 73, geo - n4ua (s/n 4545) On Sun, Sep 6, 2015 at 9:20 AM, Phil Anderson wrote: > Are you looking for 007 or what? Perhaps 7373? > > What would a cool number be? > > Jerry Moore

Re: [Elecraft] P3TXMON question?

2015-08-23 Thread George Dubovsky
On Sun, Aug 23, 2015 at 4:36 PM, Ken G Kopp kengk...@gmail.com wrote: Bob, The scale calibration --is-- compressed to the right of center, --not-- to the left as you state, making the left portion expanded and easier to read. 73! Ken - K0PP ​Easier to read, perhaps, but less accurate.

Re: [Elecraft] Australia trip

2015-07-31 Thread George Dubovsky
And, of course, a quick read of Bill Bryson's In a Sunburned Country is recommended - but that's true even if your not going to Australia... 73, geo - n4ua On Fri, Jul 31, 2015 at 6:57 PM, Walter Underwood wun...@wunderwood.org wrote: One tip — in Australia, “Ayer’s Rock” is pronounced

Re: [Elecraft] Sherwood Engineering Tests

2015-02-24 Thread George Dubovsky
On Tue, Feb 24, 2015 at 12:27 PM, Wayne Burdick n...@elecraft.com wrote: Jim (et al), The K3's audio has improved due to three factors in the past couple of years: - a low-noise, low-pass audio filter stage was added to the DSP board, eliminating high-pitched CODEC artifacts

[Elecraft] K3EXREF upgrade

2015-02-14 Thread George Dubovsky
With all of this talk of synthesizer upgrades, if you are considering adding a K3EXREF while your K3 is open, this is a shameless plug for a very nice Trimble Thunderbolt 10 MHz precision source plug-and-play appliance that I have posted on QTH. Thank you. 73, geo - n4ua

[Elecraft] Fwd: K3EXREF upgrade

2015-02-14 Thread George Dubovsky
The Trimble has found a new home; thanks to all. 73, geo - n4ua -- Forwarded message -- From: George Dubovsky n4ua...@gmail.com Date: Sat, Feb 14, 2015 at 6:30 AM Subject: K3EXREF upgrade To: Elecraft Reflector elecraft@mailman.qth.net With all of this talk of synthesizer

Re: [Elecraft] A K3 Pileup Wrinkle with CW Skimmer

2015-02-06 Thread George Dubovsky
On Fri, Feb 6, 2015 at 4:38 PM, Larry Libsch llib...@bellsouth.net wrote: For those who are so disabled as to require an external crutch to copy their own call and 5NN, it is a simple matter to reverse channels in the sound card (at most it requires a reversing cable) to decode audio on the

Re: [Elecraft] 240V Line

2014-12-24 Thread George Dubovsky
On Wed, Dec 24, 2014 at 2:13 PM, Phil Kane k2...@kanafi.org wrote: On 12/24/2014 10:39 AM, Jim Brown wrote: Installing a 240V outlet is not a big deal unless the construction of your home makes it difficult to run the cable. Barring that, a competent electrician should be able to do that

Re: [Elecraft] SO-239 Bulk head fitting..

2014-10-21 Thread George Dubovsky
Dave, It's 5/8-24, and not likely available at the hdwe store. For one thing, it usually has to be very thin to work in bulkhead installations. The same thread is used for N connectors, so ask around the local hams and see who has a good junk box. 73, geo - n4ua On Tue, Oct 21, 2014 at 7:00

[Elecraft] [K3] 10 MHz GPS Disciplined Oscillator

2014-10-13 Thread George Dubovsky
For users of the K3EXREF high-stability option, I have listed a Trimble Thunderbolt GPSDO package on QTH today. 73, geo - n4ua __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] [P3] fatal error

2014-04-10 Thread George Dubovsky
OK, I just spent 2 hours as W1AW/4 on 40 cw and everything was working fine. I changed bands and the P3 displayed: FATAL ERROR In: ddc_set_coef() span=0 Press any active key to escape But all keys are dead, so no escape from the black screen of death. Power down/up does no change the

Re: [Elecraft] [P3] fatal error

2014-04-10 Thread George Dubovsky
with the POWER key. Alan N1AL On 04/10/2014 07:27 AM, George Dubovsky wrote: OK, I just spent 2 hours as W1AW/4 on 40 cw and everything was working fine. I changed bands and the P3 displayed: FATAL ERROR In: ddc_set_coef() span=0 Press any active key to escape But all keys

Re: [Elecraft] The case for a Panadapter - opinions, please?

2014-02-28 Thread George Dubovsky
Hi Jim, You'll be buried by responses to your question, but let me say that I am as old-school cw-centric as they come. I contest unassisted, and I used to question the value of the visual aspect of panadapters too. Until I got a P3. I can't operate without it! On sp, it helps to separate the

Re: [Elecraft] ... and solar power

2013-12-02 Thread George Dubovsky
I posed the question to one of the Engineers at Morningstar. His response, in part: *That said, for low power MPPT really isn't a huge requirement. The peak power of those panels listed is only 15.4V. When they are hot it will drop further too. SO charging a battery to 14.xV there is

Re: [Elecraft] ... and solar power

2013-12-02 Thread George Dubovsky
day... 73, geo - n4ua On Mon, Dec 2, 2013 at 5:22 PM, Jim Brown j...@audiosystemsgroup.com wrote: On 12/2/2013 2:16 PM, George Dubovsky wrote: I posed the question to one of the Engineers at Morningstar. Good comments. BUT -- to most engineers making this stuff, radio is VHF/UHF

Re: [Elecraft] External Speakers for K3

2013-04-22 Thread George Dubovsky
I don't use speakers a lot, but the best sounding ones I have ever used were the ones designed for land mobile radio in-car use. The GE Mastr II and the GE/Ericsson Delta speakers were designed to be rugged and were tailored for communications audio. I'm sure Motorola had equivalents, but I'm not

Re: [Elecraft] FS: [K3] 400 Hz 8-pole filter

2013-02-06 Thread George Dubovsky
The filter has been sold. Thanks... 73, geo - n4ua On Wed, Feb 6, 2013 at 11:45 AM, George Dubovsky n4ua...@gmail.com wrote: For Sale - KFL3A-400, removed from a s/n 6xxx used K3 I recently bought. $106 shipped US. 73, geo - n4ua

Re: [Elecraft] RS232 vs USB yet again...

2012-05-12 Thread George Dubovsky
One of the still-plentiful, proven, and inexpensive Edgeport boxes (USB to 4 or 8 RS-232) would seem to obselence-proof your station. 73, geo - n4ua On Sat, May 12, 2012 at 8:48 AM, John Ragle tpcj1...@crocker.com wrote: It is very rare that one can find a modern PC desktop that comes with 1

Re: [Elecraft] SMT and the K3 - Nerves

2012-04-19 Thread George Dubovsky
Both at work and at home, I use two irons to remove SMD parts. The earlier poster that warned against pad damage when clipping a chip in half was right on; the damage won't occur most of the time, but it will certainly happen on the hardest to remove or the hardest to replace board ;-) And, I

Re: [Elecraft] Overtighted Case Screw Removal?

2011-11-13 Thread George Dubovsky
No, there are actually left-hand drill bits for certain specialty operations. This would be one of them ;-) I can testify that left-hand drills and left-hand taps should be securely locked up in the shop lest they vex the unwary - hehe. 73, geo - n4ua On Sun, Nov 13, 2011 at 5:44 PM, kevinr

Re: [Elecraft] FS GPS DO

2011-08-03 Thread George Dubovsky
The unit in question is a Trimble Thunderbolt GPS -disciplined 10 MHz oscillator. They are removed from last-generation E911 location equipment manufactured by Andrew Corp in Lynchburg, VA (my employer). A ton of them were surplussed out and wound up in the far East at a scrap dealer. They are

Re: [Elecraft] Rb GPS DO comparison

2011-07-20 Thread George Dubovsky
Hi Brian, If you want to go straight to the top of the frequency measuring heap, I have a GPS-disciplined Rubidium for sale ;-) It's a NIB Symmetricom StarLoc II Plus, that gives you GPS accuracy when it's locked to the sats, and Rubidium accuracy when it's in holdover. I've been a ham long

Re: [Elecraft] 10 Mhz Reference Oscillator

2011-04-14 Thread George Dubovsky
Wishful thinking? Yeah, probably, for the same reason Elecraft doesn't want to get into the power supply business. There is a HUGE amount of closely-held magic in both the precision oscillator and in the GPS disciplined-oscillator business. Elecraft would have to devote Engineering resources to

Re: [Elecraft] OT trying to identify mystery coax cable

2011-04-13 Thread George Dubovsky
Nope, the original poster is correct. RG214 is the replacement for RG9 - both double-braid, same connectors... 73, geo - n4ua On Wed, Apr 13, 2011 at 2:50 PM, donhall161 donhall...@sbcglobal.netwrote: RG214 is NOT modern RG9, but rather is ruggedized RG8. Check your friend Google. 73 Don

Re: [Elecraft] Installed K3EXREF

2011-03-21 Thread George Dubovsky
List, I know a thing or three about those Trimble T'bolts; I am a design engineer for the company that made the (previous generation) equipment that is now being surplussed in several parts of the world. There is no domestic or Chinese thunderbolt; there is the commercial version (silver and red

Re: [Elecraft] 250hz Filter - Audio drops

2011-01-03 Thread George Dubovsky
This bit me a few months ago: You probably have RX EQ boosted, and this is disabled for 100/50 Hz DSP filltering. 73, geo - n4ua On Mon, Jan 3, 2011 at 5:33 PM, Tommy Alderman alderm...@windstream.netwrote: This is driving me crazier! My narrow filter is 250hz (FL4). FL4 cuts in when I

Re: [Elecraft] K3

2010-11-19 Thread George Dubovsky
Well, as a recent convert (September), I agree you made a fine choice. I ran Icom IC-765's for the last 20 years (all cw) and, while I still think the 765 is one of the finest cw radios ever made, the filtering of the K3, and the excellent sub-receiver, are a significant step up. I wrung it out in

Re: [Elecraft] Elecraft Digest, Vol 79, Issue 18

2010-11-10 Thread George Dubovsky
DC for variable-speed has been largely supplanted by ac, multiphase motors over the last 20 years. There is ac-dc conversion in the front end of the controllers, but it is then followed by dc-ac single or, more commonly, three-phase, variable frequency generation. That's usually the source of the

[Elecraft] [K3] 10 dB audio drop with 50/100 Hz DSP filters

2010-10-30 Thread George Dubovsky
All, I have a relatively new K3, s/n 4545; I just upgraded to the latest FW using the latest utility, but the problem predates that. I have 2.7 KHz, 5 pole filters, 1.8 kHZ and 250 Hz 8 pole filters in both the main and sub receivers. I have zero offset set for all of the 8 pole filters. When I

Re: [Elecraft] [K3] 10 dB audio drop with 50/100 Hz DSP filters

2010-10-30 Thread George Dubovsky
John, Lyle, RX equalize was it! Thank you very much - I never would have found that one on my own. 73, geo - n4ua On Sat, Oct 30, 2010 at 8:18 PM, Lyle Johnson k...@wavecable.com wrote: You probably have the Rx equalizer set to boost audio at the tone frequency you are using for these

[Elecraft] pending price increase

2010-07-29 Thread George Dubovsky
All, Has there been an official announcement of the implementation date of the Elecraft price increases? 73, geo - n4ua __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help:

[Elecraft] K3 serial numbers

2010-05-07 Thread George Dubovsky
Out of curiosity, approximately what serial number of K3 is currently shipping? -- 73, geo - n4ua __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] Seems to be confusion!

2010-04-23 Thread George Dubovsky
No, no - you send him your K3 s/n and that is what is engraved on the knob. At that price (which is not unreasonable for short-run machining and finishing, by the way) you would want theft protection. 73, geo - n4ua On Fri, Apr 23, 2010 at 9:34 AM, Philip Leonard WVØT leoli...@seidkr.comwrote: