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Why does my seperate tuner sound so bad?

What is causing noise in the audio of my Sony SA50ES tuner that is apparetnt during sound output but will lessen during quite moments. It sounds like a weak static when sound is outputing. It is appearent on both strong and weak signals. AM and FM. I don't think ground loops are the problem. I'm using the Dynalab ST2 whip antena mounted ontop of a Channel Master TV probally 10 FT above the roof line. I'm running about 50FT of Radio Shack Quad Sheilded cable with direct connection from antena to tuner. Do I have problems with the location of the antena or is the tuner at fault. What should I try?
ronald_p
sherod
1,690 posts
 
You might get the best feedback for this question if you take it to the tuner forum at www.fmtunerinfo.com Scroll down to the bottom of the page and click on Tuner Forum.
aaronm's avatar
aaronm
99 posts
 
Ronald, You have good equipment,antennae and fine cable. Assuming it is all working properly, you have some sort of ghost in the machine(s). I would suggest taking your tuner to a friends house and see if the problem persists there. Conversely, try his (or her) tuner at your house and see what happens. This should eliminate some theories of what is wrong and what is right. After that process of elimination has occured, we will be able to help you further. Best Regards,
tumbler's avatar
tumbler
93 posts
 
Ron,

You are probably suffering from multipath distortion. I had the same thing and only learned of it when I acquired a Sequerra Model 1 tuner and its scope display clearly showed multipath distortion. I had thought it was the other tuner's fault. I use the same whip antenna you have and it will not correct this problem especially for my favourite station. To correct this, i will install a directional APS antenna and rotate it until the multipath signal is reduced or eliminated. This may be your problem. Bowwor someone's tuner that has a multipath measuring meter or display and see for yourself.
ronald_p OP
13 posts
 
Aaronm,

I don't have a freind with a tuner to barow at the moment.

Tumbler,

I can't use a APS because my TV antenna is the primary part of my mask with rotor and the APS needs a rotor and 10 FT of space between TV and FM antennas. I thought the ST-2 was the answer because they recommened to mount it to the same mask as the TV antenna.

Dynalab the maker of the ST-2 antenna says there antenna is not at fault and the tuner is not performing to specification and he recomends buying there Tuner.

Any more suggestions? I expected much better performance with $100 antenna and a $800 retail tuner. Sony recommneds (Forgot to mention its a typo above I have a ST-SA5ES tuner) all antenna (TV from FM) be seperated by 6 ft. To bad winter is setting in and it is not the best time of the year to be playing on a roof.
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