testwest Posted August 14, 2011 Report Posted August 14, 2011 Anybody need a Bendix ADF antenna and amplifier? See below for pictures. I also have an Antenna Development Company marker beacon receiver (boat type) for sale as well, see the photos below. These were removed from our Mooney 201 during upgrades. Best offer for one or both.
testwest Posted March 13, 2012 Author Report Posted March 13, 2012 Bump, these are still available, anyone? Anyone?
KSMooniac Posted March 13, 2012 Report Posted March 13, 2012 Ah, I thought it was an Antique Direction Finder! Now I know. (I'm glad my plane didn't come with one... I had enough of that in training & checkride in 1995/96!)
Piloto Posted March 14, 2012 Report Posted March 14, 2012 I would not throw away my trusty KR-87 ADF. You never know when that big solar flare or virus is going to knock out GPS. Before the days of LORAN C I used to navigate using ADF, DF and LORAN A for maritime navigation. The B707 was one the first ones with airborne LORAN A. The radio was too big and expensive for small planes. None of the LORAN A receivers had moving map capability. You find your position by matching timing pulses on a little oscilloscope on the receiver. The pulse delay (TDs) was then referenced on a LORAN map. Before GPS ADF was the only way to find Santa Maria in the Azores islands and islands of the Pacific. Today you can still hear at night in the US the DDP NDB (391KHz/1000nm) located in Puerto Rico. I have been able to get bearings from DDP in the amazons. Because of their low implementation and maintenace cost NDBs still popular in many parts of the world. José
Jerry 5TJ Posted March 14, 2012 Report Posted March 14, 2012 ... and we kept the KR87 ADF. It drives the RMI-like indicator on the G500. Works fine. In fact, NDB approaches are not hard to fly with the help of synthetic vision, ground speed, ground track and wind vector information on the PFD....
Vref Posted April 25, 2012 Report Posted April 25, 2012 I had my Kr87 repaired recently....pleanty of NDB's and locators here, wouldn't like to miss it...cheap way to listen to Radio broadcasts when a long trip in europe. Anyway MW is on rennaisance with DRM technology....Maybe all this old transmitters to could be re-used for a cheap weather data link.....just dreaming http://www.radio-electronics.com/info/broadcast/drm/drm-digital-radio-mondiale.php
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