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The Toot-a-Loop Radio or Panasonic R-72 was a novelty radio made by Panasonic Japan in the early 1970s. This radio was designed to be wrapped around the wrist. It also came with stickers for customizing the unit. Reception was the AM broadcast band only - no FM (the FM version of this radio is called RF-72). The radio was shaped something like ...
The total listenership for terrestrial radio in the United States as of January 2017 was 256 million, [8] up from 230 million in 2005. [9] Of the 121 million listeners in markets served by portable people meters in 2021, an average of 7.5 million are listening to a radio at any given time, up slightly from 2020.
XTRX Pro [134] Pre-built 30 – 3700 MHz 120 MHz 12 12 Yes 120 MSRP SISO, 90 MSRP MIMO 0.1; 0.01 with GPS lock mini PCIe Unknown Yes Unknown Xilinx Artix7 50T Zeus ZS-1 [135] [136] [137] Pre-built 300 kHz – 30 MHz ? Yes 10 kHz, 20 kHz, 40 kHz, 100 kHz 1/3 USB 2.0 Yes No No USRP N310 [138] Pre-built 10 MHz – 6 GHz 100 MHz 16 14 Yes
Amateur radio operators take part in portable operations using radio equipment when traveling. "Portable" equipment indicates a configuration that allows for relatively rapid collection, transportation, and deployment of amateur radio gear. A portable station can be anything from a small QRP (Low Power) radio and antenna, to a large transceiver.
Panasonic Stereo Cassette Player RQ-JA63. The first portable audio player available to the general public, the Sony Walkman, was introduced in 1979 and sold very well.It was much smaller than an 8-track player or the earlier cassette recorders, and was listened to with stereophonic headphones, unlike previous equipment which used small loudspeakers.
A picture of The Panapet radio The Panapet radio is a round novelty radio on a chain, first produced by Panasonic in the early 1970s to commemorate the World Expo in Osaka [ 1 ] Two chrome plated dials on the surface are for tuning and volume, and a tuning display is inset on the surface of the ball.
Portable radio - a radio powered by batteries that can be carried with a person. Radios are now often integrated with other audio sources in CD players and portable media players. Portable radios typically are small enough to be hand held, or, for larger radios, have a handle or carrying strap.
A tuned radio frequency receiver (or TRF receiver) is a type of radio receiver that is composed of one or more tuned radio frequency (RF) amplifier stages followed by a detector (demodulator) circuit to extract the audio signal and usually an audio frequency amplifier. This type of receiver was popular in the 1920s.