Re: [Elecraft] Ceiling fan interference
Brian Several years ago I had a Casablanka ceiling fan which was mounted in a location where the sun would hit it. During spring and autumn the sun was in a position so the sunlight would shine through the blades then reflect off a white wall and illuminate a small SCR night light. The blades chopped the light causing rapid on/off switching of the SCR. The resulting pulsed RFI drove me nuts for three years. The pulse frequency was a function of fan RPM. Change your fan speed and see if it effects your situation. Doug Hudson K7CUU From: elecraft-boun...@mailman.qth.net on behalf of Brian Hunt Sent: Friday, December 15, 2017 2:51:06 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Ceiling fan interference Sounds like a pulse width modulation controlled variable speed DC motor. Their website doesn't give any details other than the DC motor. There is a tech support link on their website you could query them. Similar to the problems hams have with the new high efficiency furnaces? I have one of those that I tamed with some ferrite clamp-ons on the thermostat line. 73, Brian, K0DTJ > On Dec 15, 2017, at 14:14, VE3NFK wrote: > > Hi > > I have a very nice living room ceiling fan "Aeratron 50 in. Indoor Silver 3 > Blade Ceiling Fan" > super high efficiency, very low power and quiet BUT severe radio > interference 15 khz spacing especially on 80, 40, 160 on my K3 and KX3. > > __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d_hud...@outlook.com __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 / RF gain - S meter issue
Dale, Thanks for the suggestion. I ran the test on both K3s and they are exactly the same. The range is from 240 (fully clockwise) to 02 (fully counterclockwise) If I turn the RF gain slow enough I can see both rigs incrementing or decrementing (depending on turning direction) 1 count at a time. /Bruce From: Dale Boresz [mailto:dmbor...@gmail.com] Sent: Friday, December 15, 2017 10:12 AM To: Bruce Meier Cc: Elecraft Subject: Re: [Elecraft] K3 / RF gain - S meter issue Hello Bruce, Just to rule out any electrical or mechanical discontinuities in the RF gain control itself, you can use the CONFIG > SW TEST > SCN ADC option to examine the ADC reading as a function of rotation position for both RF gain pots and both AF gain pots. In order to be able to see the "SW TEST" option, you will first have enable "TECH MODE" by setting "CONFIG > TECH MD to 'ON' Once you've selected SW TEST > SCN ADC, slowly rotate your rf gain control from one extreme to the other while watching the 'steps' in the VFO B display, looking for any sudden step changes. The values I observe run contiguously from 002 at full CCW to 239 or 240 at full CW. Good luck with your troubleshooting. 73, Dale - WA8SRA __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Ceiling fan interference
Sounds like a pulse width modulation controlled variable speed DC motor. Their website doesn't give any details other than the DC motor. There is a tech support link on their website you could query them. Similar to the problems hams have with the new high efficiency furnaces? I have one of those that I tamed with some ferrite clamp-ons on the thermostat line. 73, Brian, K0DTJ > On Dec 15, 2017, at 14:14, VE3NFK wrote: > > Hi > > I have a very nice living room ceiling fan "Aeratron 50 in. Indoor Silver 3 > Blade Ceiling Fan" > super high efficiency, very low power and quiet BUT severe radio > interference 15 khz spacing especially on 80, 40, 160 on my K3 and KX3. > > __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Ceiling fan interference
Hi I have a very nice living room ceiling fan "Aeratron 50 in. Indoor Silver 3 Blade Ceiling Fan" super high efficiency, very low power and quiet BUT severe radio interference 15 khz spacing especially on 80, 40, 160 on my K3 and KX3. Anybody with any experience with these? They are DC motors, RF ? remote control units (but it only emits when you use it). Thanks! 72/3 John VE3NFK -- Sent from: http://elecraft.365791.n2.nabble.com/ __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 / RF gain - S meter issue
Hello Bruce, Just to rule out any electrical or mechanical discontinuities in the RF gain control itself, you can use the CONFIG > SW TEST > SCN ADC option to examine the ADC reading as a function of rotation position for both RF gain pots and both AF gain pots. In order to be able to see the "SW TEST" option, you will first have enable "TECH MODE" by setting "CONFIG > TECH MD to 'ON' Once you've selected SW TEST > SCN ADC, slowly rotate your rf gain control from one extreme to the other while watching the 'steps' in the VFO B display, looking for any sudden step changes. The values I observe run contiguously from 002 at full CCW to 239 or 240 at full CW. Good luck with your troubleshooting. 73, Dale - WA8SRA On Wed, Dec 13, 2017 at 4:25 PM, Bruce Meier wrote: > Looking for suggestions here from someone that might have experienced this > same issue - - > > > > I have (2) K3 units (not the S model) that are acting different when the RF > gain adjustments are turned fully counter clockwise. > > Ø Unit one – s/n 1062: When the RF gain is decreased to full counter > clockwise position the S-Meter registers full scale (60db over S9) as > expected. > > Ø Unit two – s/n 1193: When the RF gain is decreased to full counter > clockwise position the S-Meter registers only S8. > > Facts: > > Ø With the exception of the S-Meter readings with RF gain settings, both > units are working fine > > Ø Both units have ‘almost’ all mods installed. If not all, they are at > least both the same. > > Ø Both units are running the same version of microcode (5.54) (2.88) > (2.88) > (1.26) > > Ø Both units seem to register very close actual RF gain of stations when > connected when tested on the same antenna > > Ø Both units have the new synthesizers. > > Ø Both units have second RX > > Ø In both cases (both units) I can hear the audio level decreasing > linearly > as expected as the RF gain is turned counter clockwise > > I have tried to initialize the K3 and reload the firmware resulting in no > change to the RF gain / S-Meter readings. > > > > Elecraft Tech Support suggested: > > Ø Calibrating the s-meter – did nothing > > Ø Next suggestion – send the rig to California. > > > > Anyone have this issue and fixed it?? > > > > 73, > > Bruce N1LN > > > > __ > __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Here's your 3500 watt amp A new KL-1...!!!!
The size and weight factors get more and more important as you get older. Luv my KPA500 and may opt for the KPA 1500 for use on AM. Bill W2BLC K-Line __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Here's your 3500 watt amp A new KL-1...!!!!
Only $10k and possibly a visit from the FCC! I had a factory built Heathkit Chippewa KL-1 amplifier back in 1965. A pair of grid driven 4-400 tetrodes in Class AB1. 10 watt drive for 1KW plus, plus out. 3-400Z triodes didn't enter the picture until 5 or 6 years later. The amp weighed 90lbs and the power supply 115lbs. W1ZK -- Webmaster USS PUEBLO Veterans Association Life Member American Ex-Prisoners of War Life Member Disabled American Veterans __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft.io
I just found this site and wanted to share https://groups.io/g/elecraft Brad N1VWD KX2 # 01625 -- Bradford McKirryher N1VWD - Yesterday is history,Tomorrow is a mystery and Today is a gift __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] FA-VA4
Their main business is to publish a monthly ham radio magazine - FunkAmateur - , alas their homegrown kit names all start with FA. I talked to them on the phone last week because i wanted to send back a part that i ordered wrong. Most of the staff are hams, they know what you talk about when you have questions about their products. The man -i think it was Ingo DK3RED - said hell broke loose over the last days. Obviously xmas business takes it's toll, the analyzer kit and others sell extremely well. I'm a happy customer for years now and i know the company is small but reliable. They never sent a shipping confirmation. Shipping sometimes is slow. It's not like amazon where your order is shipped next day. Maybe your kit is already in the US waiting for custom clearance. Just relax and wait. If you feel it already took too long, call them by phone, their number is ++49 3044669472. Say you want to talk to the shop staff. Or mail them s...@funkamateur.de . Do not use webmas...@box73.de Am 14.12.2017 um 23:42 schrieb elecraft-requ...@mailman.qth.net: Message: 2 Date: Thu, 14 Dec 2017 10:36:43 -0500 From: Art To:elecraft@mailman.qth.net Subject: Re: [Elecraft] FA-VA4 Message-ID:<16055abaebe-1720-1...@webjas-vab238.srv.aolmail.net> Content-Type: text/plain; charset=utf-8 After reading several posts here about this antenna analyzer kit, I decided to order one on Dec. 2. Got the confirmation immediately, but never received any shipping notice or the product. I have sent two inquires that have gone unanswered. Has anyone had any experience with the company? Any suggestions? 73 and Merry Christmas, Art KZ5D -- Ohne CW ist es nur CB.. 73, Martin DM4iM __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
