----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- Lynn's comment prompts me to offer for comment an idea I have come up with recently. The use of certain components of a speed gun or doppler radar unit as a warning device for towers or oncoming traffic. Stripped to their essentials, most of these things are a horn antenna with a Gunn diode transmitter and diode detector receiver. They put out a tone of a frequency determined by the doppler difference of the 10,525 Mhz frequency when reflected by a moving object (or in some cases a fixed object as seen by a moving detector). If memory serves correctly, the tone is about 31 hz per mile per hour. If you threw away the box and simply used the tone output and fed it into your headset, you would soon be accustomed to the pitch and volume as you flew toward a fixed object. The aperture of these things is about 3 deg. so if you were flying along in the scud and started to hear a tone (at about 1/2 to 1 mi.) you could swing the nose a little and see if left or right was stronger or weaker and change course accordingly. If neither made it weaker, it is a mountain, keep turning until no tone! I wonder how hard it would be to get an STC to put one of these things on your certificated aircraft? Dick in NM.
----- Original Message ----- From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Sunday, February 03, 2002 5:04 AM Subject: Re: [COUPERS] [COUPERS-TECH] Sport Pilot rules ... that would cause me to rethink my flying due to all the towers ... ==^================================================================ This email was sent to: [EMAIL PROTECTED] EASY UNSUBSCRIBE click here: http://topica.com/u/?aVxiLm.aVzvvT Or send an email to: [EMAIL PROTECTED] T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^================================================================
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