Radio (general)

The former ERA-4/ERA Sport (before 1982 YENED Athens) medium wave antenna at Megara - Pachi peninsula. (DSCN0839)

Broadband sensor antenna of the National Observatory of Electromagnetic Fields (Εθνικό Παρατηρητήριο Ηλεκτρομαγνητικών Πεδίων) on a roof near Katechaki Metro Station. This broadband station is a NARDA AMB-8057-03/G and measures the intensity of the field in the band 100 kHz – 7 GHz and in three special bands related to GSM mobile networks (EGSM 900 925 MHz – 960 MHz, EGSM 1800 1805 MHz – 1880 MHz and UMTS 2110 MHz – 2170 MHz). (DSCN0837) This work is licensed under a Creative Commons Attribution 4.0 International License .

UltraBeam HF antenna at the Hellenic Telecommunications and Posts Commission monitoring station at Aspra Chomata. (DSCN0836) This work is licensed under a Creative Commons Attribution 4.0 International License .

Information board at the entrance of Hellenic Telecommunications and Posts Commission monitoring station at Aspra Chomata. (DSCN0832)

General view of the antenna mast at the Hellenic Telecommunications and Posts Commission monitoring station at Aspra Chomata. (DSCN0830) This work is licensed under a Creative Commons Attribution 4.0 International License .

VHF-UHF-SHF receiving antennas at the Hellenic Telecommunications and Posts Commission monitoring station at Aspra Chomata. (DSCN0829) This work is licensed under a Creative Commons Attribution 4.0 International License .

An interesting antenna that I noticed today in Moschato, Greece. (DSCN0806)

Vintage telegraph set, Signal Corps J-38 Key & Electric Manufacturing Company Of Menominee, Michigan 4 Ohm telegraph sounder. A well-worn telegraph set with a knob fitted to the key as a repair. Auction Item 281A -- Cledis Estes Auctions II of Medina, Ohio. Photo by Joe Haupt uploaded on Flickr under a free CC-BY-SA license. Flickr file: www.flickr.com/photos/51764518@N02/37214343242

Vintage Zenith Radio Corporation military headphones, made In USA. Auction Item 247A, Cledis Estes Auctions II of Medina, Ohio. Photo by Joe Haupt. Uploaded on Flickr under a CC-BY-SA license. Flickr file: www.flickr.com/photos/51764518@N02/36528788320 This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License .

ARRL W1AW Challenge Coin © The American Radio Relay League

Generic free public domain amateur radio logo, similar to the logos of many ham radio societies. Original SVG version: commons.wikimedia.org/wiki/File:International_amateur_radio_symbol-2.svg

Two axis (AZ-EL) antenna rotator with 3D-printed components, at the RAAG HamFest 2017. (DSCN0720)

Vintage Conar tube tester,tModel 223, Division Of The National Radio Institute (NRI), made In USA, circa 1968, by Joe Haupt. Uploaded on Flickr under a CC-BY-SA license. Flickr file: www.flickr.com/photos/51764518@N02/34938237796

A small UHF dipole antenna for the remote control receiver of a water well pump. (DSCN0707)

Parabolic dish antenna for a microwave link recently installed at Chalkis Technical College. (DSCN0688) This work is licensed under a Creative Commons Attribution 4.0 International License .

Parabolic dish antenna for a microwave link recently installed at Chalkis Technical College. (DSCN0687) This work is licensed under a Creative Commons Attribution 4.0 International License .

Vintage Western Electric telegraph sounder, made in USA, by Joe Haupt. Uploaded on Flickr under a CC-BY-SA license. Flickr file: https://www.flickr.com/photos/51764518@N02/34146317880/ This work is licensed under a Creative Commons Attribution-ShareAlike 2.0 International License .

A Wi-Fi antenna and tranceiver for a control link for municipal facilities near Alkazar Park in Larisa, Greece. (DSCN0684) This work is licensed under a Creative Commons Attribution 4.0 International License .