The Ohio State University Radio Observatory was operated on the grounds of Ohio Wesleyan Univerity’s The Perkins Observatory in Delaware Ohio from 1963 to 1998. The radio observatory was part of OSU’s Search for Extraterrestrial Intelligence (SETI) project.
Director of the Ohio State University Radio Observatory (OSURO) based in Columbus.
He designed and directed the construction of the football-field-sized “Big Ear” in Delaware Ohio.
Construction of the Big Ear began in 1956 and was completed in 1961. It was turned on for the first time in 1963.
The radio telescope discovered some of the most distant known objects at the edge of the universe and conducted sky surveys mapping over 19,000 radio sources (over half of which had never been previously detected).
The Big Ear gets a Wow!
The Wow! signal was a strong radio signal received on August 15, 1977. The 72-second signal appeared to come from the direction of the constellation Sagittarius and bore the expected hallmarks of extraterrestrial origin.
Review
![Expert Sun MB1 SDR Transceiver 160m – 2m [ Video ]](https://i0.wp.com/www.nerfd.net/wp-content/uploads/2020/09/SDR_MB1__96596.1430765963.1280.1280-265x168-1.jpg?w=635&ssl=1)
Expert Sun MB1 SDR Transceiver 160m – 2m [ Video ]
Details of the new Expert Sun MB1 SDR Transceiver. It covers 160m to 2m and delivers 125W on the HF bands and 60W on 2m. This radio is available from… Read more
Vacuum Tubes – “ARRL The Doctor is In” podcast. Listen…and learn!
“Vacuum Tubes” is the topic of the current (February 15) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! More than a half-mill… Read more
Ailuance HD-1 Dual Band DMR HT Debut [ Video ]
Check out this new dual band DMR HT and how easy it is to program! Read more
Installation and Review of the Ameritron RCS-8V Remote Coax Switch
Ameritron’s Remote Coax Switch lets you remotely switch up to five separate antennas using one inexpensive small control line (like standard telephone… Read more
Equipment
MFJ-939I PLUG,PLAY,200W AUTOTUNER, HF – Plug & Play Auto Tuner
Plug & Play Auto Tuner Plug & Play! You won’t even know it’s there . . . MFJ-939I/K/Y automatically tunes your antenna as you tune your radio…. Read more
Amplifier 1.2 kW Spert 1200 – 1.8 to 50 MHz
Output power of 1200 W CW / SSB in the field KF, 700W in the band of 50 MHz Power 50V 35A efficiency of 73-75% frequency range 1.8 to 50 MHz switching… Read more
Introducing . . . New MFJ CWMorse Micro Telegraph Keys
MFJ-566M, $29,95 Red/Black Micro Morse Code Key with aluminum base. Liquid smooth and shielded steel ball bearings. Hardened steel pin rotation and st… Read more
![Yaesu FT-DX101D/MP [ English Brochure ]](https://i0.wp.com/www.nerfd.net/wp-content/uploads/2020/09/FT-DX101mp_u-265x168-1.jpg?w=635&ssl=1)
Yaesu FT-DX101D/MP [ English Brochure ]
Yaesu FT-DX101D/MP The new FTDX101D is utilizing the latest SDR Technology and classified as our High-End HF line, the FTDX series, which amateurs hav… Read more
RFinder B1 HT Radio, Android DMR and FM
RFinder B1 HT Radio, Android DMR and FM This is the device that you have been waiting for! The RFinder B1 is now available for pre-order. Imagine a d… Read more
Antenna
Center Loading the Wolf River Silver Bullet 1000
“Wold River Coils has a new accessory for Silver Bullet 500 & 1000 coils called the UAFI or You Asked For It kit. The UAFI is a pair of exte… Read more
80 METER FRAME ANTENNA
by Harry Lythall – SM0VPOI keep on and on about my little balcony and the antenna restrictions it imposes on my HF antennas. This project… Read more
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HF Loop Antennas – ARRL The Doctor is In [ PodCast ]
“HF Loop Antennas” is the topic of the just-released episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Enginee… Read more
Hustler 6 Band Vertical HF Fixed Station 10, 15, 20, 30, 40, and 75 or 80 Meters
Bandwidth at it’s broadest! VSWR 2:1 or better at band edges on 10-40 meters. Up to 100 kHz. on 75/80 meters. Solid one inch fiberglass… Read more
The Rotator Illuminator Kit
The Rotator Illuminator kit by Idiom Press is a three-LED replacement circuit for the incandescent lamp in Hy-Gain control boxes. Buy this kit… Read more
App – Mobile
RFinder – The World Wide Repeater Directory now supports Twitter!
“RFinder has been the ‘Social Repeater Directory’ for a while now with its support of repeater check-in postings to APRS and… Read more
Top 5 Ham Radio App
Ham Radio App If you’re a member of ARRL, the national association for Amateur Radio, install this app and have QST, the ARRL membership journal… Read more
RFinder – The World Wide Repeater Directory now free trial on Android!
In order to support the proliferation of third party app stores worldwide, we have now released RFinder on Android as trialware! Just go download it f… Read more
Antenna Tool App – Android
A tool to help ham radio, CB, and other radio users to create antennas of various types. Calculations available for dipole, vertical (1/8, 1/4, 3/8, 1… Read more
817 Companion for Yeasu 817 – App
Yeasu 817 The 817 Companion app is dedicated to all the proud owners and users of the Yeasu 817 amateur radio. The Yeasu 817 is a fantastic radio bu… Read more
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