Aqua-Guide Direction Finder CH-704
Columbian Hydrosonics; Freeport, NY
- Country
- United States of America (USA)
- Manufacturer / Brand
- Columbian Hydrosonics; Freeport, NY
- Year
- 1970–1975 ?
- Category
- Commercial Receiver (may include amateur bands)
- Radiomuseum.org ID
- 249978
Manufacturer doc - Advertising in 1974.
- Number of Transistors
- Semiconductors present.
- Semiconductors
- Main principle
- Superheterodyne (common); ZF/IF 455/10700 kHz
- Wave bands
- Broadcast, Long Wave, Short Wave plus FM or UHF.
- Power type and voltage
- Batteries / addl. power jack / 12 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
- Power out
- 1 W (undistorted)
- Material
- Metal case
- from Radiomuseum.org
- Model: Aqua-Guide Direction Finder CH-704 - Columbian Hydrosonics;
- Shape
- Portable set > 8 inch (also usable without mains)
- Dimensions (WHD)
- 12 x 8 x 11 inch / 305 x 203 x 279 mm
- Notes
-
The CH-704 is a 4-band, fully transistorized portable receiver which may be operated using internal "D" cell batteries or from an external 12 VDC source.
The Marine (1.6-5.0 MHz), Broadcast (535-1605 kHz), and Beacon (150-400 kHz) bands are available for direction finding. A VHF/FM (148-174 MHz) band is available for reception only.
Consolan navigational signals, VHF/FM weather, and single side band signals can be received. In addition to the tuner there are two fixed crystal positions available for instant tuning on the marine band.
For radio direction finding (RDF) this unit has a rotating ferrite loop antenna, an Azimuth dial, and a telescoping "sense" antenna. Additionally, there is a built in pelorus which may be used to take visual bearings.
"VHF/FM" reception is facilitated using a second telescoping antenna.
The IF frequency is 455 kHz for Marine, Broadcast, and Beacon bands and 10.7 MHz for VHF/FM.
- Net weight (2.2 lb = 1 kg)
- 8.3 lb (8 lb 4.8 oz) / 3.768 kg
- Price in first year of sale
- 295.00 USD
- Source of data
- -- Original prospect or advert
- Author
- Model page created by Arthur Sullivan. See "Data change" for further contributors.
- Other Models
-
Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Columbian Hydrosonics; Freeport, NY
Collections
The model Aqua-Guide Direction Finder is part of the collections of the following members.