Electronic Design

Fast ADC Facilitates Direct RF Sampling at Higher Frequencies

Sponsored by: Texas Instruments. Simple in nature, the new RF-sampling receiver architecture yields major benefits at VHF, UHF, and microwave levels. The critical component in all digital ...
Hackaday

Simple Superheterodyne SW Receiver Harks Back Almost 100 Years

Early radio receivers worked on a principle called Tuned Radio frequency (TRF), patented in 1916. They weren’t very easy to use, requiring each stage to be tuned to the same frequency (until ganged ...
EDN

SDR Basics Part 2: Receivers

The following is excerpted from Chapter 18: Software Defined Radio from the Book, RF & Wireless Technologies by Bruce Fette. If you order a copy of this book before December 31, 2007 you can receive ...
insider.si.edu

RCA "Radiola" model AR 812 superheterodyne radio receiver

Marked: (Plate) "Radiola Superhetrodyne Model AR812 No. 145451, Range 220-550 Meters. Patented: 1/21/08; 3/5/12; 10/6/14; 7/3/17; 10/22/18; 6/27/20; 6/8/20; 2/18/16 ...
JSTOR Daily

Model 82 Marconiphone super-heterodyne receiver, 1927-1930

Model 82 Marconiphone super-heterodyne receiver (8 valve) with frame aerial and dummy valves, introduced September 1927, made by the Marconiphone Company Limited, Dagenham, London, England, 1927-1930.
PC Magazine

direct conversion receiver

Also called a "tuned radio frequency" (TRF) receiver, it is a radio receiver that detects and demodulates the carrier signal broadcast by the station without using an intermediate frequency (IF) stage ...
Electronic Design

Fast ADC Facilitates Direct RF Sampling at Higher Frequencies (.PDF Download)

The critical component in all digital communications receivers is the analog-to-digital converter (ADC). The ADC sampling rate, bandwidth, and noise tolerance establishes the specifications and ...