Title
Radio Direction Finder (RDF)
FMM2008.10.16.1
Subject
navigation
Description
Apelco Radio Direction Finder, Model DFR 40. Light gray box with dark gray front. Frequency bands displayed at front center. Five knobs on front for band, BFO, BFO, gain, and tuning. Large dial on top, marked with numbers 0 to 350 in increments of 10. Telescoping antenna on top at the back, proper left corner. Metal handle on proper left side. Serial Number on bottom: 1678.
The RDF detects radio signals from broadcast stations on shore and pinpoints the direction of the station. Since the location of each broadcast station is known, a sailor can use multiple signals to triangulate his ship’s position.
The RDF detects radio signals from broadcast stations on shore and pinpoints the direction of the station. Since the location of each broadcast station is known, a sailor can use multiple signals to triangulate his ship’s position.
Creator
Apelco
Format
6" h x 13" w x 11" d
Comments