ka7oei.blogspot.com

KA7OEI's blog

Random musings - usually on a technical (nerdy) subject - perhaps related to things found at http:/ ka7oei.com. Wednesday, July 29, 2015. A PIC-based audio comb filter to remove AC mains hum. If you have read the Modulatedlight.org. Page - and realized that I had something to do with its content - you will know that one of my interests is Free-Space, through-the-air optical communications. The prototype comb filter. Click on the image for a larger version. The modulation of the lights themselves, typical...

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Random musings - usually on a technical (nerdy) subject - perhaps related to things found at http:/ ka7oei.com. Wednesday, July 29, 2015. A PIC-based audio comb filter to remove AC mains hum. If you have read the Modulatedlight.org. Page - and realized that I had something to do with its content - you will know that one of my interests is Free-Space, through-the-air optical communications. The prototype comb filter. Click on the image for a larger version. The modulation of the lights themselves, typical...

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3 figure 2

4 the comb filter

5 the circuit

6 figure 3

7 bypass

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KA7OEI's blog | ka7oei.blogspot.com Reviews

https://ka7oei.blogspot.com

Random musings - usually on a technical (nerdy) subject - perhaps related to things found at http:/ ka7oei.com. Wednesday, July 29, 2015. A PIC-based audio comb filter to remove AC mains hum. If you have read the Modulatedlight.org. Page - and realized that I had something to do with its content - you will know that one of my interests is Free-Space, through-the-air optical communications. The prototype comb filter. Click on the image for a larger version. The modulation of the lights themselves, typical...

INTERNAL PAGES

ka7oei.blogspot.com

1

KA7OEI's blog: November 2014

http://www.ka7oei.blogspot.com/2014_11_01_archive.html

Random musings - usually on a technical (nerdy) subject - perhaps related to things found at http:/ ka7oei.com. Sunday, November 23, 2014. Recently the topic of the meeting of the Utah Amateur Radio Club was on "old" radio. Really. Old radio, which is to say "radio" in the days before vacuum tubes and even crystal detectors. One of the detectors used in these old days was the Coherer. Before it can detect again - a short of "one-shot" detector. The most common type of detector (the "Branly" type. Back in...

2

KA7OEI's blog: Using the "RTS.SDR" dongle (with HF upconverter) as found on Ebay

http://www.ka7oei.blogspot.com/2015/03/using-rtssdr-dongle-with-hf-upconverter.html

Random musings - usually on a technical (nerdy) subject - perhaps related to things found at http:/ ka7oei.com. Saturday, March 7, 2015. Using the "RTS.SDR" dongle (with HF upconverter) as found on Ebay. The EvilBay "RTL.SDR" with built-in upconverter. According to the pictures on EvilBay, the units. Currently sold host different picture, with. A graphical representation of the schematic. Diagram showing the mixer. Click on the image for a larger version. What are these 'dongles' of which you speak?

3

KA7OEI's blog: February 2015

http://www.ka7oei.blogspot.com/2015_02_01_archive.html

Random musings - usually on a technical (nerdy) subject - perhaps related to things found at http:/ ka7oei.com. Friday, February 20, 2015. A "quiet" 5 volt USB car power supply. For a previous, related article see the May, 2014 posting - "How USB car power adapters can ruin 2 meter mobile reception" - link. In that post I wrote about those ubiquitous USB car power adapters that fit in a cigarette lighter and while these devices work well for power phones, GPS receivers and the like, they are terrible.

4

KA7OEI's blog: July 2015

http://www.ka7oei.blogspot.com/2015_07_01_archive.html

Random musings - usually on a technical (nerdy) subject - perhaps related to things found at http:/ ka7oei.com. Wednesday, July 29, 2015. A PIC-based audio comb filter to remove AC mains hum. If you have read the Modulatedlight.org. Page - and realized that I had something to do with its content - you will know that one of my interests is Free-Space, through-the-air optical communications. The prototype comb filter. Click on the image for a larger version. The modulation of the lights themselves, typical...

5

KA7OEI's blog: Adding a waterfall display to the mcHF transceiver

http://www.ka7oei.blogspot.com/2015/05/adding-waterfall-display-to-mchf.html

Random musings - usually on a technical (nerdy) subject - perhaps related to things found at http:/ ka7oei.com. Sunday, May 31, 2015. Adding a waterfall display to the mcHF transceiver. The "Grey" waterfall mode of the mcHF self-contained SDR transceiver. In "Magnify" mode which shows only 24 kHz total bandwidth. Three - possibly four SSB QSOs are visible in this picture. This picture. Was taken before I added windowing to the FFT, improving the "look". Actually, it was more complicated than that. At lea...

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hamgear.wordpress.com

Downloads | Ham Radio Blog PD0AC

https://hamgear.wordpress.com/downloads

Ham Radio Blog PD0AC. Thoughts of a Dutch radio amateur. Programming Software Hand held Radios. BF-666S / BF-777S, BF-888S, BF- 658, GT-1, etc). Follow Blog via Email. Enter your email address to follow this blog and receive notifications of new posts by email. Join 1,044 other followers. 3,072,226 visitors so far. Review BTech UV-5X3 TriBand Handheld. Review BTech UV-50X3 (Tri-Band). Review – BTech UV2501 220 (Tri-Band). Build your Own Programming Cable. Review – Pofung (Baofeng) UV-82HP.

hamgear.wordpress.com

Disclaimers & Copyright | Ham Radio Blog PD0AC

https://hamgear.wordpress.com/disclaimers-copyright

Ham Radio Blog PD0AC. Thoughts of a Dutch radio amateur. This is a personal blog with no intention to make money of it. I have no commercial ties to any manufacturer or supplier. Links to manufacturers, suppliers or products do not imply that I endorse them in any way. For your safety I will add warnings if a supplier has a poor reputation, or when the reliability is unknown. Please read Creative Commons, Attribution-NonCommercial. And you know exactly what you can and cannot do. Follow Blog via Email.

hamgear.wordpress.com

Other Websites | Ham Radio Blog PD0AC

https://hamgear.wordpress.com/other-websites

Ham Radio Blog PD0AC. Thoughts of a Dutch radio amateur. May 2013 I started a new blog called “Sacred Silicon”. The main focus will be on new gadgets and other modern day technology. Security and privacy will be important subjects, but now and then less serious stuff might sneak in. Follow Blog via Email. Enter your email address to follow this blog and receive notifications of new posts by email. Join 1,044 other followers. 3,072,226 visitors so far. Review BTech UV-5X3 TriBand Handheld. Join 1,044 othe...

hamgear.wordpress.com

House Rules | Ham Radio Blog PD0AC

https://hamgear.wordpress.com/house-rules

Ham Radio Blog PD0AC. Thoughts of a Dutch radio amateur. If you want to leave a comment or question, please make sure that you post your comment under the proper article. I can’t move comments to the proper article if they’re out of place. I can only delete them, and that’s exactly what will happen during daily housekeeping. I will still try to answer you by e-mail though, so make sure your e-mail address is valid. No foul language please. Please read the article (and comments! Follow Blog via Email.

hamgear.wordpress.com

My shack | Ham Radio Blog PD0AC

https://hamgear.wordpress.com/my-shack

Ham Radio Blog PD0AC. Thoughts of a Dutch radio amateur. Here are some pictures of my shack. As you probably can see, it’s a very small room. So small in fact, that I wasn’t able to make a picture that would cover it all, not even with my back against the wall. Clicking on a picture will show a larger version. 19 comments on “ My shack. September 2, 2007. 64; 8:52 pm. I do like that shack and all those radios! Are the guitars plugged in too? September 3, 2007. 64; 7:01 am. No, they’re not! 64; 1:10 pm.

hamgear.wordpress.com

Other hobbies | Ham Radio Blog PD0AC

https://hamgear.wordpress.com/other-hobbies

Ham Radio Blog PD0AC. Thoughts of a Dutch radio amateur. Main instruments: piano, keyboard and bass. Also: a bit of guitar (I still suck at that). I was born with perfect pitch. Nice when you quickly want to write down a song you hear on the radio, or tune an instrument without having to search for a tuner. There are drawbacks too…. I rent boats as often as I can. Guess what’s in my hand…. I use Nikon, Pentax and Olympus DSLR cameras. Main subjects are portraits and dogs. Eye of a child. Dog hunting a bug.

hamgear.wordpress.com

Ham Radio Blog PD0AC | Thoughts of a Dutch radio amateur | Page 2

https://hamgear.wordpress.com/page/2

Ham Radio Blog PD0AC. Thoughts of a Dutch radio amateur. Newer posts →. CHIRP Support now available for the new Anytone 8R series. By John ‘ Miklor. Software that now supports over 80 different models of transceivers, is. Now providing basic support for the two newest models of the Anytone series, the TERMN-8R and the OBLTR-8R. CHIRP’s Latest Daily Build can be found HERE. The advantage of the basic settings is the “spreadsheet memory editor” which will allow owners to:. By John Miklor . 50 MHz 2.1 ...

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Skip to: site menu. KA7O - The Dungeon. Raquo; Front Page. Not all menu items are complete. Welcome to the online extension of KA7O's Shack, The Dungeon. This site serves as a virtual extension of a place where I share life with friends. The Dungeon is more of a concept than a place. It's where I 'do my thing'. It's where I invite folks into my world and we can share common interests. I think the idea of The Dungeon started in my Grandad's basement. It's where I was first exposed to the incense of ro...

ka7oei.blogspot.com

KA7OEI's blog

Random musings - usually on a technical (nerdy) subject - perhaps related to things found at http:/ ka7oei.com. Wednesday, July 29, 2015. A PIC-based audio comb filter to remove AC mains hum. If you have read the Modulatedlight.org. Page - and realized that I had something to do with its content - you will know that one of my interests is Free-Space, through-the-air optical communications. The prototype comb filter. Click on the image for a larger version. The modulation of the lights themselves, typical...

ka7oei.com

Clint's Page (KA7OEI)

The following pages are those that I maintain either in whole or in part. I hold the amateur radio callsign of KA7OEI, hence the common theme of many of the following links:. If you are bored, you may want to check out my blog at. The KA7OEI Microwave page. A page with some details of microwave-band amateur radio operations and equipment, including 10 and 24 GHz plus information about Rubidium and Crystal-based frequency references. KA7OEI Optical Communications page. I did, so I decided to check it out.

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35 69歳の女性1,697人に聞きましたリピートしたいヘアカラーとは. ２染め上がりに差をつける美髪成分を７８.２. Http :/ www.lifemedia.co.jp/images/shiraga.pdf. 髪の毛傷みパサパサごわごわ. 特にひどいところは前髪の生え際と、、髪の毛を結びたくても白髪が目立ってオシャレもできない、、肌が過敏でないなら、１ヶ月に２回美容院で、、. 売れてる白髪染めの違いはどこ人気のある白髪染めを、価格や成分機能評判など、いろんな角度から徹底比較しました。髪の毛傷みパサパサごわごわ.