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Thread ID: 54607 2005-02-17 05:35:00 TV Signal Sender craigb (4884) PC World Chat
Post ID Timestamp Content User
325839 2005-02-17 05:35:00 Hi all
Have looked around but can't seem to find what I'm looking for. I want a signal sender that will transmit the TV signal from the aerial connection coming out of the floor (that you plug into the TV) to a TV across the room. This will save having to buy more cable to extend current aerial cable, having to crawl under the house and drilling holes in the nice carpet. Have seen AV senders etc for Videos/DVD's/Sky decoders etc but can't seem to find one for just the TV aerial. Any suggestions where one would find one if they exist.

Cheers
Craig
craigb (4884)
325840 2005-02-17 05:52:00 Sorry Craig, they don't exist, at least not in the form you want . Because of the number of channels on air, you would need a sender that tuned your wanted channel then beamed it to the TV on a different (unused) channel, which is perfectly feasible but not cheap .

The situation is different for the examples you quote because they provide an AV feed which is converted to a normal RF carrier, and that is sent to a dedicated channel on the TV . It is the multiplicity of signal sources that stands in your way .

I'm afraid that if you want good image and sound quality, you are going to have to run a cable .

Cheers

Billy 8-{)
Billy T (70)
325841 2005-02-17 07:50:00 Bugger. Thanks anyway. craigb (4884)
325842 2005-02-17 08:51:00 As BT has said, not directly possible. However...
If you have a VCR, you can plug your aerial cable into that and have its RCA output plug into a video sender that has a "remote extender" feature.

Have a look at this:
www.ascent.co.nz

hth
T
Tom McB (832)
325843 2005-02-17 08:59:00 As BT has said, not directly possible. However...
If you have a VCR, you can plug your aerial cable into that and have its RCA output plug into a video sender that has a "remote extender" feature.

Have a look at this:
www.ascent.co.nz

hth
T

But that will only transmit an AV signal that the VCR is tuned to, and require the channel to be changed on the VCR only to be effective at changing the program on the TV.

The problem is, the spectrum at the TV antenna socket at the wall is about 40 MHz to 800 MHz. You cannot economically compress that down to anything that you can retransmit, the bandwidth required is just too great.
godfather (25)
325844 2005-02-17 09:35:00 One would think that you could plug the TV aerial into something that woud boost the signal enough for a pair of bunny ears or similar to provide good reception (something like a mini transmitter that they have plonked on various hills and what we point our aerials at). Would probibly have the neighbours pointing their aerials at my house to improve their reception. craigb (4884)
325845 2005-02-17 09:55:00 its possible craigb but........

you need a license for a transmitter for starters and unless correctly done it will cause poor pics for you and your neighbours. thats mainly due to the indoor aerial picking up the orginal transmitter signal as well as the new transmitter signal.

with the video and video sender option the legal side is questionable and its still generally cheaper and easier to run a cable. (not to mention the fact your neigbours can tune in to watch all your <cough> homemade video's ;-) )
tweak'e (69)
325846 2005-02-17 16:28:00 But that will only transmit an AV signal that the VCR is tuned toAgreed.


and require the channel to be changed on the VCR only to be effective at changing the program on the TV.This is what the remote extender feature is for. The video sender I suggested allows you to send the AV signal as well all control the AV source from another room using the original or compatible (ie learning) remote.


The problem is, the spectrum at the TV antenna socket at the wall is about 40 MHz to 800 MHz. You cannot economically compress that down to anything that you can retransmit, the bandwidth required is just too great.Agreed. You are an expert in these matters, BT and I am not questioning your response - I am merely suggesting an alternative way by which Craig can achieve what I thought he wanted to do ie. watch TV programs from another room without using bunny ears nor routing cables under the house and spoiling his nice carpet.


with the video and video sender option the legal side is questionableHmmm, interesting Tweak'e. I suppose sending the TV broadcast is different from sending "home videos" :rolleyes: What about if the purpose was an AV baby monitor (ie source is a camera) and the next door neighbours found out junior needs a nappy change?
Tom McB (832)
325847 2005-02-17 18:35:00 What about if the purpose was an AV baby monitor (ie source is a camera) and the next door neighbours found out junior needs a nappy change?

In my exterience with babies, the neighbours might not need a video sender to detect an overdue nappy change.

The built in olfactory alarm will alert anybody within 500 metres downwind, and 100 metres in a stiff cross-wind. :yuck: That's without the audible alarm that accompanies such events.

Cheers

Billy 8-{) :p
Billy T (70)
325848 2005-02-17 21:39:00 Agreed .
Hmmm, interesting Tweak'e . I suppose sending the TV broadcast is different from sending "home videos" :rolleyes:

the legal side comes from the fact that you useing a transmitter in a licenced frequency range that most likly will be interferring with anyones reception withen a 2km radius of your house .

what makes matters worse is the cheap ones usually broadcast on chanels that are not ment to be broadcasted on (unless your the goverment and "give" one of those channels to the maori's, stufing up peoples reception untill their tv station goes bust . . . . . . . . but thats another saga ;-) ) . also some of the cheap ones are overly powerfull . the ghz ones are better in this reguard, less interfence and line of site usage .
tweak'e (69)
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