Page 3 of Amateur Radio Gear by Ramsey Electronics

54 Build It, Learn it, Achieve It, Enjoy It! Fun Electronics...Now in our 34th Year! Shop online at www.ramseykits.com Call Toll Free 800-446-2295 AMATEUR RADIO GEAR Get in on the fun of radio direction finding (RDF) with this super kit ! The latest in affordable Doppler direction finding equipment available in a complete kit form ..this one even includes the receiving antenna assembly! A must for the "fox hunter" at an unheard of price! Radio direction finding is a fascinating hobby and is becoming more and more popular in today's portable world. With the increasing number of intentional jammers and other unknown transmitters around, Doppler DF locators have become the rage with a display that gives you a direct bearing on the location of the transmitter. Pretty neat trick considering you dont need multiple separate receivers at different locations to triangulate on the mystery transmitter! The kit includes the Doppler Direction Finder display unit and all the parts necessary to build your own four point, 5 piece magnetic antenna assembly for easy setup and use. Operates on 12VDC, and includes a matching 12VDC power plug for custom integration and connection into your vehicle or portable power supply. Easy to hook up to any FM receiver. Transmitter (the object of your DF'ing) need not be FM, it can be AM/FM or CW. Requires only a connection to your receiver's speaker jack and radio's antenna. The whips can be cut and optimized for any frequency from 130-1000 MHz. An easy to build, reliable kit that compares most favorably to commercial units costing upwards of $1000.00! Comes complete with matching case, 12VDC plug, magnetic antenna kit with cables, and a comprehensive instruction manual. (Sorry, the Dodge Stratus above isnt included, my daughter totaled it!) Doppler Direction Finder DDF1 Doppler Direction Finder Kit, With Case, Power Cable, And Magnetic Antenna Kit $169.95 DDF1WT Factory Assembled Tested DDF1 With Case, Power Cable, And Magnetic Antenna Kit $269.95 4 Track down jammers and hidden transmitters with ease! 4 Elegant and cost effective design thanks to WA2EBY! 4 Featured in May/June 1999 QST Magazine 4 Convenient LED 22.5 degree bearing indicator 4 Adjustable damping rate, phase inversion, scan enable/disable 4 Utilizes latest high speed CMOS technology for signal conditioning and audio processing! K I T Wired Tested Track Them Down Quick! The Foxhound connects to any radio through the speaker jack and antenna connector and will allow you to easily zero in on the exact direction of an unknown transmitter, be it aircraft, two-way radio, Ham or even TV. The Foxhound uses a pair of telescopic whip antennas which are manually turned (by you!) until the sensitive meter indicates the lowest reading. This direction finder uses the latest technology for trouble-free, solid operation. The antennas are alternately switched on and off using PIN diodes. The outputs are then passed thru a high-Q audio filter and synchronously detected for phase shift. A pair of LEDs tell you in which direction you should rotate the antennas- to the right or left. We provide the telescopic whip antennas and ask you to provide a two foot long boom on which to mount them. And, as an added feature, weve included an automatic T-R switch! The T-R switch is ideal for handie-talkie usage; if you wish to transmit with your radio go ahead, the Foxhound will sense your transmitter power and automatically switch itself out of the circuit while you talk. Be the one with the answers, win those transmitter hunts, track down the jammers; youll do it all with your Foxhound! Operates on internal 9 Volt battery or 12VDC, via a 2.1mm female power jack. Includes a custom case set for super-nice looking finished kit! (No foxes were injured or harmed during DF1 development!) Foxhound Direction Finder DF1C Foxhound Direction Finder Kit With Case $74.95 AC125 110VAC Power Adapter $9.95 4 Pin diode switching of antennas, coupled with filters, determine direction of source signal as indicated by a pair of LEDs 4 Sensitive metering allows easy zeroing-in on transmitter! 4 Includes two telescoping whip antennas 4 Features a built-in T/R switch! K I T Join The Fox Hunt Craze!

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