Antenna Signal Meter

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enochsmoken
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Antenna Signal Meter

Post by enochsmoken » Wed May 07, 2014 11:09 am

Is there a meter that I can hook into an antenna system to see what channels I can pick up? Or how strong the channels signal is?
Thanks

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jwax
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Re: Antenna Signal Meter

Post by jwax » Wed May 07, 2014 12:03 pm

That would be a "receiver" with a built-in signal strength meter.

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Externet
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Re: Antenna Signal Meter

Post by Externet » Wed May 07, 2014 4:48 pm

My baby tells the microvolts of the signal from the antenna :

----> http://i588.photobucket.com/albums/ss32 ... 15427d.jpg

(34uV at the picture)
- Abolish the deciBel ! -

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jwax
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Re: Antenna Signal Meter

Post by jwax » Wed May 07, 2014 6:48 pm

That's a mighty impressive "meter"! :grin:

enochsmoken
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Re: Antenna Signal Meter

Post by enochsmoken » Thu May 08, 2014 7:45 am

jwax wrote:That would be a "receiver" with a built-in signal strength meter.
Do they have a trade name? Can you tell me where to purchase one?
Thanks

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jwax
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Re: Antenna Signal Meter

Post by jwax » Thu May 08, 2014 12:21 pm

What frequencies are you interested in?

enochsmoken
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Re: Antenna Signal Meter

Post by enochsmoken » Fri May 09, 2014 9:10 am

jwax wrote:What frequencies are you interested in?
I work in a hospital, and I am trying to find out if the patient TVs are going bad or our antenna signal is weak.

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Externet
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Re: Antenna Signal Meter

Post by Externet » Fri May 09, 2014 11:58 am

Connect a known healthy television to the suspected bad patient's room antenna and compare performance.
- Abolish the deciBel ! -

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jwax
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Re: Antenna Signal Meter

Post by jwax » Fri May 09, 2014 3:51 pm

That's the easy, convenient way.
Option, if money is no object, is to buy a field strength meter. They make them specifically for the TV bands.

Dean Huster
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Re: Antenna Signal Meter

Post by Dean Huster » Wed May 21, 2014 6:20 pm

In the Navy, we used the Singer/Stoddard NM-25T. It was exactly as you describe in your wants, but limited to 30MHz or so as I recall. There were other models that went higher in frequency. We had to sweep the HF bands back in the 1970s to do site surveys to check background noise. It was a very boring, twice a year deal that I hated because it took me away from the test equipment repair bench.
Dean Huster, Electronics Curmudgeon
Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines).

R.I.P.

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haklesup
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Re: Antenna Signal Meter

Post by haklesup » Thu May 22, 2014 1:56 pm

I just searched on "tv signal strength meter" and found a variety of meters as low as $30 on my first try

These are not tunable to stations and only give a general sense of what's going on.

99% of the time, someone has added too many splitters in the cable distribution network which divides the signal strength for every port on that network. usually the solution is to replace the passive splitters with active amplified splitters. Note that this can cause problems with digital cable services and internet connections if they use the same cables. The result of too many splitters is almost always certain dead channels among others that seem to work. In digital TV, the picture will probably just freeze or drop out, in analog systems you would see bars of noise roll across the screen.


not for TV frequencies or attaching to a cable so much but many smart phones can download a signal strength meter app for free and use the fancy computer in your pocket. While your at it, a seismograph is a cool app too.

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Lenp
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Re: Antenna Signal Meter

Post by Lenp » Sat May 31, 2014 1:24 pm

Years ago, in my time of consumer electronics, we used a salvaged TV tuner and measured a signal output voltage for a rough approximation of signal strength. That was way back in the age of analog so I don't know if digital or cable tuners can be adapted for this use.
Len

“To invent, you need a good imagination and a big pile of junk.” (T. Edison)
"I must be on the way to success since I already have the junk". (Me)

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