The ELF Network: The untold storyDecember 23, 2021 | Ralph
The ELF Network: The untold story Copyright (c) 2021 by Ralph Iden, All rights reserved.
Author’s note: In the late 1960’s, the U.S. Navy proposed Project Sanguine that would use extremely low frequencies (70-80 Hz) for communication. It was an … Read More
My Dream DXpeditionDecember 25, 2020 | Ralph
My Dream DXpedition as told to Ralph, WB9ICFCopyright (c) 2020 by Ralph Iden, All rights reserved.Part 1I have been looking forward to this trip for a long time. By all accounts, this year has been one for the books. At … Read More
QRPGuys CW keyerJanuary 31, 2019 | Ralph | 2 Comments
Although a Begali or Bencher (now Vibroplex) paddle was on my Christmas list, Santa must have felt that I wasn’t a good as I could have been. However, all was not lost. I did manage to snag a keyer kit … Read More
Monitor transmitter quality using a RF tapJanuary 29, 2019 | Ralph | 2 Comments
The uBitX is a popular multi-band QRP transceiver. Preparing to assemble my own 40m uBitX, I wanted a means to monitor the RF output to confirm that any harmonics and spurs are at levels that meets FCC requirements. I have … Read More
Wolf River Coil TIA EnhancementJanuary 23, 2019 | Ralph
Woke up this morning and found my photo background covered with snow. Shoveled a bit and took this photo of my modified Wolf River Coil Take-It-Along kit with a dual collar.
The kit ships with three 32′ radials with … Read More
Raspberry Pi Slides from RARA presentationOctober 12, 2018 | Ralph | 3 Comments
This evening, I presented “An Introduction to the Raspberry Pi” to a group of radio amateurs from the Rockford Amateur Radio Association. It was great to get together with this group again and a good time was had by all. … Read More
Celebrating one year back in the hobby…August 7, 2018 | Ralph
Today marks my one year anniversary of my return to amateur radio. To celebrate, I presented a talk on the Raspberry Pi to our local radio club, the McHenry County Wireless Association. As promised, I am uploading my slide deck, … Read More
Arduino, Raspberrry PI, or any SPI enabled device: Speak Now!April 25, 2018 | Ralph
I happened across an interesting Kickstarter project, BIG BUDDY TALKER , an inexpensive way to add natural sounding speech to your next project. It features more than 1000 sounds (visit the Kickstarter to see the current list of words) that … Read More
Raspberry Shake Wins Innovation PrizeMarch 24, 2017 | Ralph
Congratulations to OSOP SA, the team who brought us the [Raspberry Shake], a personal seimograph, on being awarded the Panama National Prize for Business Innovation for their work on the Shake.
Left to right: Amilcar Watcher, Ángel Rodriguez, Kiara … Read More
Review: The Turing ExceptionJanuary 31, 2017 | Ralph
The Turing Exception by William Hertling My rating: 5 of 5 stars
4.5 out of 5.0 for the book and 5 out of 5 for the series – Amazing glimpse into what our future could be.
I started William … Read More