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Old 01-16-2018, 01:48 PM   #11
Bobnoxious
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Default Re: FM reception

Quote:
Originally Posted by Hosh View Post
Seems very weak even in metro area. Anybody else have similar issue?
Same problem, poor FM reception, only a couple of channels. Antenna/base replaced by dealer (Snagged by garage door emergency release cord ) no improvement. Didn't investigated further.

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Old 01-16-2018, 08:56 PM   #12
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Default Re: FM reception

Hosh, You may or may not know that FM is rather short range and also line of sight. Example: In Calypso, I can pick up the local PBS/TPR repeater station out of Ingram, TX about 10 miles from the ranch. Traveling south toward San Antone on TX27, it will become fuzzy and sometimes lost past Center Point 5 miles south of the ranch. Heck! Sometimes just along side the 'ville's airplane patch!!! As you near Comfort, about 10 miles south you can pick it up again and maybe another 10 miles. Then NADA! about 30 -40 miles LOS from the transmitter. All because of the hills & valleys here. It all depends on signal strength, power radiated, line of sight and no valleys, hills, trees or tall buildings between you and the station. Exactly why satellite radio is the Boss out in the Hill Country.

A decent 'base loaded' rubber ducky will do fine. Not the best but they will work. There are some 'lay flat' antennas but I've not figured out how to install one without tearing apart the roof mounted connections. Besides, that 10 buck rubber duck is a great height detector!!!!!

Well, you can get AM stations but who has time for that????

FROM WIKI: (the penultimate source of all knowledge...)



Reception distance

FM radio waves do not travel far beyond the visual horizon, so reception distances for FM stations are usually limited to 30—40 miles. They can also be blocked by hills. This is less than the range of AM radio waves, which because of their lower frequency can travel as ground waves or reflect off the ionosphere, so AM radio stations can be received at hundreds (sometimes thousands) of miles. This is a property of the carrier wave's typical frequency (and power), not its mode of modulation.

The range of mono FM transmission is related to the transmitter's RF power, the antenna gain, and antenna height. The U.S. FCC publishes curves that aid in calculation of this maximum distance as a function of signal strength at the receiving location.

Many FM stations, especially those located in severe multipath areas, use extra audio compression to keep essential sound above the background noise for listeners, occasionally at the expense of overall perceived sound quality. In such instances, however, this technique is often surprisingly effective in increasing the station's useful range.


Pre-Cuban Missile Crisis I'd clandestinely listen to rock & roll & scifi programs from WLS Chicago at night in Biloxi Mississippi on my Halicrafters S-38E. Way cool and very naughty are young Crows!!!
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Last edited by Old Crows; 01-16-2018 at 09:08 PM.
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Old 01-16-2018, 11:04 PM   #13
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Default Re: FM reception

FM reception ****ty but gate-opener reception significantly improved.
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2015 Sprinter 144 Hi Top OM-651 I4 2.143 liter.
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http://diysprinter.co.uk/reference/
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