Distributing more than one Sky/satellite RF output ?

Capt'n Midnight

If you have a signal from an Aerial or NTL you could run it throught the SKY digibox and then an Analog sat box and then through a Video ( so the video can record from the other two ) and then into the TV.

But the signal gets trashed when you do that. Too many cables en route and too many amps.

I could wire it up so that the RF output from each sat box goes into a splitter. An then hang the TV and Video off a second splitter on the output.

But I need to block the RF input on the devices so they don't amplify any stray signal.
Should I use a 50 Ohm resistor or just a short or should I send them all the same signal from a modulator as this will suppress the automatic gain control and mean less noise amplified..

Later on the plan would be to stick a few Analog recivers on one LNB to get several channels RAI 1-2-3 etc. ( be great fun finding non-inteferring channels )

Tony

Capt'n Midnight wrote:

But the signal gets trashed when you do that. Too many cables en route and too many amps.

it should not get trashed, either your levels are too high/low or the Rf channels are too close to each other. I'm not sure what you mean by two many amps, there should only be one?

watty

A 75Ohm resistor is fine. There is no AGC on loop through.

I have Aerial-> Digibox1-> Analog Box -> VHS ->Digibox2 RF2-> Distribution AMP

Digibox2 RF1 -> LOCAL TV

DVD, Digibox2, VHS, FTA Satbox: SCARTS all to 4 way ALL pin switch box to TV

Digibox2 and FTA Satbox separate SCARTS to VHS SCARTL1 and SCARTL2


It is a question of not too much TV aerial signal to overloead system and carefull picking of channels. All RF channels are perfect.

Tony

true Watty a few attenuators called for maybe

watty wrote:

A 75Ohm resistor is fine. There is no AGC on loop through.

I have Aerial-> Digibox1-> Analog Box -> VHS ->Digibox2 RF2-> Distribution AMP

Digibox2 RF1 -> LOCAL TV

DVD, Digibox2, VHS, FTA Satbox: SCARTS all to 4 way ALL pin switch box to TV

Digibox2 and FTA Satbox separate SCARTS to VHS SCARTL1 and SCARTL2


It is a question of not too much TV aerial signal to overloead system and carefull picking of channels. All RF channels are perfect.

byte

It could be possible also that one of the loop leads is dodgy also. Especially if it's those thin ones that come with appliances.

Tony

byte wrote:

It could be possible also that one of the loop leads is dodgy also. Especially if it's those thin ones that come with appliances.

Agreed Byte always best to make up proper ones I find