radiosky.com

qrp-popcorn.blogspot.com

QRP HomeBuilder - QRPHB -: April 2015

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QRP HomeBuilder - QRPHB -. Popcorn Radio Electronics and Radio Astronomy. Tuesday, 14 April 2015. I spent some grand time on the bench this Fall and Winter. On May 3, I'll cease bench experiments blog posting and go outside in our garden. To keep in touch with other radio and QRP work bench enthusiasts over the spring summer, I'll employ Twitter. Here's a quick glimpse at the front end filter — amplifier in test mode. I swept for S21 and performed DC measures last weekend. Above —1 of my first rege...

qrp-popcorn.blogspot.com

QRP HomeBuilder - QRPHB -: Onto Jupiter

http://qrp-popcorn.blogspot.com/2015/04/onto-jupiter.html

QRP HomeBuilder - QRPHB -. Popcorn Radio Electronics and Radio Astronomy. Tuesday, 14 April 2015. I spent some grand time on the bench this Fall and Winter. On May 3, I'll cease bench experiments blog posting and go outside in our garden. To keep in touch with other radio and QRP work bench enthusiasts over the spring summer, I'll employ Twitter. Here's a quick glimpse at the front end filter — amplifier in test mode. I swept for S21 and performed DC measures last weekend. Above —1 of my first rege...

cassicorp.com

SRT Links

http://www.cassicorp.com//links.html

SRT hompage at Haystack Observatory. And SETI - Big Ear Radio.

neophysicslabs.com

Neo Physics Labs

http://www.neophysicslabs.com/spacelinks.htm

Help "Us" fund our research. Visit some of our Great Sponsors Today. Thanks! Do you listen to "The Space Show"? Send all Inquires to:. Adventures in Deep Space. Radio Astronomy for Scientists Teachers and Stu. Society of Amateur Radio Astronomers: Radio Ast. United States Space Drive Patents. NASA - NASA TV Landing Page. National Association of Rocketry NAR Home.

qrp-popcorn.blogspot.com

QRP HomeBuilder - QRPHB -: Regen #5

http://qrp-popcorn.blogspot.com/2015/04/regen-5.html

QRP HomeBuilder - QRPHB -. Popcorn Radio Electronics and Radio Astronomy. Friday, 3 April 2015. Greetings — Привет! Briefly/frankly: I’m more a science officer Spock type than a green smoothie, quinoa and tofu devouring new. Above — Photo of Regen #5 Front Panel. Above — Regen #5 RF Board Schematic. Above — Regen #5 AF Board Schematic. A common gate amplifier provides reverse isolation. IMO, batteries are best suited for moors and trail. As a dedicated AC power supply enthusiast , I won’t r...Thanks to s...

qrp-popcorn.blogspot.com

QRP HomeBuilder - QRPHB -: Javascript Tools

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QRP HomeBuilder - QRPHB -. Popcorn Radio Electronics and Radio Astronomy. Simple JavaScript tools with minimal input error checking. A Calculate 2 Resistor Voltage Divider Bias. B Calculate Inductive Reactance. Enter Inductance in uH:. Enter Freq in MHz:. C Calculate # of Turns To Obtain a Desired Inductance on a Ferrite Toroid. Enter Inductance in millihenries:. The AL for this ferrite core is. D Calculate Cut off Frequency for an RC Pi Low-Pass Filter. Enter resistor value in ohms:. Femto Farads , Lm.

qrp-popcorn.blogspot.com

QRP HomeBuilder - QRPHB -: My RF Resources

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QRP HomeBuilder - QRPHB -. Popcorn Radio Electronics and Radio Astronomy. Personal RF resources I access via my phone or tablet when in my lab:. For my attenuator pad design tables. For some UHF tools. Normal set-up: Ground - Pins 2, 5, 6 and 7. LO - Pin 8, IF - Pins 3 and 4, RF - Pin 1. RF - Pin 1, IF - Pin 2, Ground - Pin 3, LO - Pin 4. Your return loss bridge serves double duty as a hybrid-combiner. See EMRFD. Subscribe to: Posts (Atom). VE7SL - Steve - Amateur Radio Blog. Sun Earth Jupiter 20161122.

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QRP HomeBuilder - QRPHB -: November 2014

http://qrp-popcorn.blogspot.com/2014_11_01_archive.html

QRP HomeBuilder - QRPHB -. Popcorn Radio Electronics and Radio Astronomy. Monday, 24 November 2014. Crystal Qu and Other Doggerel. A reader saw a photo of my old W7ZOI crystal characterization oscillator (with the suggested switch from Dr. Gordon-Smith, G3UUR) in the site archive. I had removed its crystal holders to yet another such oscillator and just soldered in a crystal as a PROP for the photo. This photo "suggested" it was OK to solder in the various crystals under test. My bad — I apologize. Oscil...

qrp-popcorn.blogspot.com

QRP HomeBuilder - QRPHB -: July 2015

http://qrp-popcorn.blogspot.com/2015_07_01_archive.html

QRP HomeBuilder - QRPHB -. Popcorn Radio Electronics and Radio Astronomy. Saturday, 4 July 2015. Motley Tales of Woe and Rapture. Notes on a few experiments for my Jupiter receiver. I departed from my 5 normal month radio hiatus to blog because it’s super-hot outdoors and our basement feels oh so cool. Sometimes, too:. If I wait too long to post stuff, I lose passion or worse yet — forget details and/or lose data. I love the works of Anton Chekhov. This post arose because I wanted to design my own Jupite...