CATV out jack not working on cheap DTV

April 10, 2011 at 23:37:30
Specs: Emerson DTV
i have simple rabbit ear indoor antenna connected to an Emerson small 19" flat screen DTV
CATV output jack

i have tried scanning setup to program some channels
but i'm getting nothing

i had a large 4'x12' wire fence section box pattern 2"x4" square boxes wired to it as an outdoor antenna (laying on the ground , then tilted skyward at an angle toward the largest nearby metropolitan area) previously as an antenna

i've come to the conclusion that the CATV output jack is defective

but now, after trying to program some channels using the setup scan feature, i am getting a few weird channels

maybe the real problem is antenna RF reception and i need to put the fence grid up on the roof until i can connect this TV to a proper outdoor TV Arial antenna system??

See More: CATV out jack not working on cheap DTV

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April 11, 2011 at 15:56:35
Two things wrong here.

You say you have your antenna connected to an OUTPUT jack. if it's an output jack, then it is not meant to take an input.

The other problem is there are no more analog signals coming over the air if you live in the USA. The antenna would need to connect to a digital to analog converter before you connect it to an anlaog input on your TV.

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April 12, 2011 at 07:59:52
"i had a large 4'x12' wire fence section box pattern 2"x4" "

That is an old UHF antenna. They no longer use these because as stated, use Digital Signal now. That antenna would work like 5 years ago but not now. If you are hooking up an antenna then it connects to the ANT IN jack.

P.S. There should have been an antenna provided with the TV. It would be about 4 to 5 inches long. This is the proper antenna to use for digital TV.

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April 12, 2011 at 11:52:20

so it was the antenna / CATV input jack

as far as i know there was no little antenna with the TV set
it is a year or so old so the TV will demodulate demultiply demultiplex and decifer the digital signal ok

the problem is getting a strong enough signal RF radio sig

so far i can get a few digital channels that the scan feature picks up at night but i probably need to turn off the DSL/ WiFi modem to reduce the interference from it

the jerry rigged ad libbed ad hoc impromptu farmer joe antenna grid isn't connected yet

the rabbit ears from a discount outlet picks up a channel or two at night but poorly and intermittently

i will look for the little antenna

i was not aware that digital TV broadcasts on a different radio frequency
i thought that the signal content was altered, not the frequencies (c. 50-54MHz)

hopefully i will find the little antenna and that will be that

I can not alter the laws of the universe. Neither can you. Or anyone else.

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Related Solutions

April 12, 2011 at 15:36:25
Yes the Antenna is designed to pickup the new digital TV frequencies. Those older antenna may pick something up but chances are you are going to get a lot of tiling and freezing with them. You should be able to buy one of these antenna at a Radio Shack or online.

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April 12, 2011 at 18:35:31
how about i just beat up the prick that stole the little antenna that came with the TV??

: )

Are there any adults online or on the Internet?; or is it just kids children minors criminals social misfits and social rejects and weirdos, script kiddies and other immature and irresponsible

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April 12, 2011 at 19:00:20
please note:

i am a licensed amateur radio operator with a technical / electronics / engineering degree, so if you try to bulls--- your way through this one, i will find out

besides, i worked in the battalion headquarters of a signal communications battalion in the national guard for 5 years and have enough telecommunications and RF/radio experience to start a war and choke a horse [and some other unmentionable things to do dads and do thats and do thiseszes]

[so eventually i will find out if you are bulls---ting]

and, given that i couldn't give a rats fart about RF communications radio , technology, electronics, engineering, computers, radios, TV, media, 4th estate, entertainment, poverty, THE CLERGY, "the ministry", RELIGION, psychology, yada yada yada etc. etc. et al. etc. etc. blah blah blah , it may take a few years ... : ) }

but i will find out !!

: )

so do not try to BULLs--- me on this one !!

DIGITAL SIGNALS CAN BE BROADCAST ON ANY FREQUENCY AT ANY POWER LEVEL WITH ANY MODULATION TECHNIQUE -- the carrier is irrelevant -- and the circuitry to demodulate demultiplex and demultiply are built into all Flat screen and DIGITAL TVS --

why is it that if you give a toddler a PC he thinks he has a Ph.D. in Electrical and Communications Engineering and an M.S. in Computer Engineering ??


anyway, you are probably right about the antenna (maybe)
but until i locate the missing little monster i am stuck with these old arial systems until i find the little rubber ducky antenna that is supposed to be attached to it

i believe the real problem here is not technical but CRIMINAL !!!


bye kiddies

have a nice life !!

You folks really do not know what the f--- you are talking about do you?? Ya all have just been talking out of your asses and making stuff up, huh??
: )

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April 12, 2011 at 21:10:16
i am a licensed amateur radio operator with a technical / electronics / engineering degree, so if you try to bulls--- your way through this one, i will find out

No one is trying to BS you. Your first post pretty much told us how little you know by saying it was an output jack. And the UHF antenna just clinched the deal. Be honest with us and we will be honest with you. How could someone who supposedly knows so much about RF make such a ridiculous mistake as using the wrong type of antenna?

demodulate demultiplex and demultiply?
Wow, you really have no idea what you're talking about do you!

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April 13, 2011 at 07:18:49
do you kiddies think i really care about local arial TV reception??

or any of this infantile stupidity switch flippin'??



: )

not a soul

not even one human gives the slightest what you "individuals" do think or say

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April 13, 2011 at 15:23:58
If you are an electronics engineer then you should know that antennas need to be impedance matched with the tank to get the strongest signal. If you use the wrong impedance antenna on then you will have problems. I am not sure what the impedance on your antenna is and from the description it sounds like an old UHF 800ohm antenna but only you would know that. If you know the impedance of the antenna then you could see if you can find an old 800ohm to 75ohm coupler.

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April 13, 2011 at 15:33:49
"do you kiddies think i really care about local arial TV reception??"

Not sure what you mean by this. With off the air you are only going to get local TV. If you want basic cable channels you could get a free to air sattelite box and try to firmware flash it and hope you do not brick it or maybe it is time to give up on broadcast TV and move into the future which is IP TV. Just get highspeed internet and goto HULU.COM. Free TV without an antenna.

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April 13, 2011 at 18:35:18

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April 17, 2011 at 05:49:21
PTSD or PMS perhaps but...

I live in an area that is a small valley (so small that I hadn't even realized I am in a valley). I am about 25 miles north of Boston.
A friend lives over 45 miles north of Boston (not in a valley).
He can pick up all of the local Boston and NH stations using his digital antenna and I can pick up none of them.

I bought three different digital antennas (most expensive I could find) and not one of them could pick up a strong enough signal to produce an image (>35). Not even a tiled image.

I have a sister that lives about 6 miles from Boston but on the wrong side of a hill and has a power company transformer out side of her window at her apartment that is between her antenna and Boston. I found the one to provide the most amount of channels to be the cheapo digital with rabbit ears from Radio Shack. Had to turn and move it around to capture a signal strong enough to watch (>35) each channel.
Greater than 65 would produce an image that won't tile or be intermittent but won't even produce an image if not greater than 35.

I got no antennas with any TVs I have purchased.

I was hoping to stop paying Comcast Cable but will have to continue to do so.

My take is you are not able to pick up a signal worthy of an image or your antenna cannot do the job.


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