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Messages - JimIO

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91
General Radio Discussion / Re: Experts address concerns over radio frequency exposure
« on: December 13, 2019, 1848 UTC »
"If they replaced the meter assembly with one to support remote monitoring, it is conceivable they could have  included a 200 Amp relay in there."

That's what I was asking about. I can't find anything that says they do that, and no one has posted any links.

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92
10/11 meters / Re: 11 meters CB for prepping?
« on: December 13, 2019, 0026 UTC »
If I was a prepper I'd go with twitter or youtube.    8)

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93
General Radio Discussion / Re: Experts address concerns over radio frequency exposure
« on: December 12, 2019, 2150 UTC »
So there's a 200 amp relay in the meters now? I can't find anything.

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94
Huh? / Re: ACLU reads holiday greets
« on: December 11, 2019, 0203 UTC »
Hey! Share some of that with Fox News, Infowars, the GOP...    8)

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95
General Radio Discussion / Re: HD FM Audio Drives Me Nuts
« on: December 11, 2019, 0129 UTC »
PPM https://en.wikipedia.org/wiki/Portable_People_Meter is BS!    8)

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96
The RF Workbench / Re: AD9833_SPI
« on: December 10, 2019, 0355 UTC »
"9833 is available very cheap from CH on a PCB with a clock etc, just check eBay."

Every electronics hobbyist should know about ebay.    8)

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97
Group W Bench / KFC is selling a chicken-scented fire log to warm your drumsticks this holiday s
« on: December 07, 2019, 0006 UTC »
NO!

https://www.cnn.com/2019/12/06/us/kfc-envirolog-chicken-scented-fire-log-trnd/index.html

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98
The RF Workbench / Re: AD9833_SPI
« on: December 06, 2019, 0456 UTC »
One reason to not use a microcontroller is that I don't like the arduino IDE.
If what I'm trying to do now does not work I may try using the USBASP as a controller. It has an ATmeg8 chip on it. Also I found this tonight:

https://blog.podkalicki.com/how-to-compile-and-burn-the-code-to-avr-chip-on-linuxmacosxwindows/

I like command line stuff!

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99
The RF Workbench / Re: AD9833_SPI
« on: December 05, 2019, 0054 UTC »
I have a USBASP USBISP adapter with 10 Pin Cable:

https://www.ebay.com/itm/262130708242

I figuered out how to talk to it with:

avrdude -c usbasp -P usb -v -t -F -p t4

Next step is get out the soldering iron and wire up the AD9833 module:

https://www.ebay.com/itm/142719447732

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100
The RF Workbench / AD9833_SPI
« on: December 05, 2019, 0009 UTC »
I've been looking at directly programming the AD9833 chip by SPI without
using a microcontroller. Still a work in progress. Here are some links you
may find interesting.


https://www.analog.com/media/en/technical-documentation/data-sheets/AD9833.pdf

https://www.analog.com/media/en/technical-documentation/application-notes/AN-1070.pdf

https://www.analog.com/en/design-center/design-tools-and-calculators.html

https://www.analog.com/designtools/en/simdds/?part=AD9833&fin=25M&mult=1&ftw=1

https://www.nongnu.org/avrdude/

https://www.nongnu.org/avrdude/user-manual/


101
General Radio Discussion / Re: FCC approves all digital AM
« on: December 04, 2019, 1840 UTC »
Antenna phaser system needs to be a closed loop of coaxial transsmision line with a reject port. Like a ring hybrid.    8)

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102
Huh? / Re: Irving Burgie, who wrote ‘Day-O’ for Harry Belafonte, dies at 95
« on: December 02, 2019, 2217 UTC »
 
   https://www.youtube.com/watch?v=VA4nlZeXZLg

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103
General Radio Discussion / Re: Experts address concerns over radio frequency exposure
« on: December 02, 2019, 0329 UTC »
"you guys know the utility can shut down your electric service remotely now right?"

Post a link! I won't hold my breath waiting...

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104
General Radio Discussion / Re: Experts address concerns over radio frequency exposure
« on: November 29, 2019, 2226 UTC »
Guess I missed the show when Alex Jones 'splained how smart meters work.    8)

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105
Equipment / Re: SMA adapter
« on: November 26, 2019, 2029 UTC »
The MLA30 Biasing Tee Outline.pdf schematic shows a potentiometer between the antenna and receiver connectors. USPS says mine should be here tomorrow.

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