comunal sat system

"charles" wrote in message
...
In article , Agamemnon
wrote:

"Owain" wrote in message
...
gazz wrote:
i'm moving into a rented flat tommorow, In the flat is a wall plate,
it has a Tv antenna socket, radio socket, and 2 F type connectors,
one is lables 'SAT' the other 'RETURN' it's the return F connector i
can't work out, anyone any ideas wot it's for??

Probably an extension wired through to the bedroom. Wire the RF OUT of
your Sky box to it, and you can tune your bedroom telly into whatever
is being watched on the Sky box.

Wrong. The OP has stated that 'SAT' and 'RETURN' are BOTH F TYPE
CONNECTORS. There are both satellite sockets NOT RF sockets.

1. If satellite signals are not RF, what are they?

Satellite signals are Microwave band DVB-S transponder signals heterodyned
to a lower IF frequency by a local oscillator inside the LNB which as
switches between the different polarisations.

RF refers to UHF modulation of an analogue composite video signal


2. My DAB tuner has an F type socket. Does that mean I have to feed it
with a satellite signal?

DAB is digital radio! You need to feed it with a F type plug connected to a
radio aerial.

In article ,
Agamemnon wrote:

"charles" wrote in message
...
In article , Agamemnon
wrote:

"Owain" wrote in message
...
gazz wrote:
i'm moving into a rented flat tommorow, In the flat is a wall plate,
it has a Tv antenna socket, radio socket, and 2 F type connectors,
one is lables 'SAT' the other 'RETURN' it's the return F connector i
can't work out, anyone any ideas wot it's for??

Probably an extension wired through to the bedroom. Wire the RF OUT
of your Sky box to it, and you can tune your bedroom telly into
whatever is being watched on the Sky box.

Wrong. The OP has stated that 'SAT' and 'RETURN' are BOTH F TYPE
CONNECTORS. There are both satellite sockets NOT RF sockets.

1. If satellite signals are not RF, what are they?

Satellite signals are Microwave band DVB-S transponder signals
heterodyned to a lower IF frequency by a local oscillator inside the LNB
which as switches between the different polarisations.

and are RF

RF refers to UHF modulation of an analogue composite video signal
in your very odd definition

RF actually means "Radio Frequency". Some services start as low as 16kHz
and the term extends to encompass microwave frequencies as well.

--
From KT24 - in "Leafy Surrey"

Using a RISC OS computer running v5.11

"Agamemnon" wrote in message
...
Are you disputing the existence of LNB IN and LNB OUT terminals on
satellite boxes which are effectively the same thing as aerial loop
throughs on Freeview boxes?

No Sky box has LNB loopthrough.

Bill

"Agamemnon" wrote in message
. uk...

"Doctor D" wrote in message
...
Are you disputing the existence of LNB IN and LNB OUT terminals on
satellite boxes which are effectively the same thing as aerial loop
throughs on Freeview boxes?

Mine has LNB in, and RF1 and RF2 out. No LNB out.

For me, RF2 feeds a distribution amp to the rest of the house. This would
go to the "return" connection in your installation and give you all
aerial signals and 1 x Sky box output at the far end.

Nope. LNB IN and LNB OUT are completely different to RF in and RF out. The
former use satellite connectors and the latter used domestic aerial
connectors such as on a VCR. LNB OUT is for connecting another satellite
box to and the original poster stated that both sockets on the plate are
of the satellite variety.

The return to the bedrooms is an 'f' type on some plates. You obviously
think that 'f' = sat and belling = terrestrial. Many terrestrial amps (all
the pro ones) use 'f' types, as do all screened splitters, taps, DC
blockers, equalisers, power inserters, etc.

I do wish you wouldn't spout such ill-informed twaddle.

Bill

"Agamemnon" wrote in message
. uk...
Wrong. The OP has stated that 'SAT' and 'RETURN' are BOTH F TYPE
CONNECTORS. There are both satellite sockets NOT RF sockets.

See my previous post. By the way, do you not know what 'RF' stands for? I
don't think you do because if you did you would know that satellite IF
signals are RF.

Bill

"Agamemnon" wrote in message
...
RF refers to UHF modulation of an analogue composite video signal

Oh I see. I wonder why the acronym isn't UHFMOAACVS then.

Bill

DAB is digital radio! You need to feed it with a F type plug connected to
a radio aerial.
Hang on a minute! You just said that 'f' types were satellite connectors,
exclusively.

Bill

In article , Bill Wright
wrote:

"Agamemnon" wrote in message
...
RF refers to UHF modulation of an analogue composite video signal

Oh I see. I wonder why the acronym isn't UHFMOAACVS then.

Bill

DAB is digital radio! You need to feed it with a F type plug connected
to a radio aerial.
Hang on a minute! You just said that 'f' types were satellite connectors,
exclusively.

which was my point, although Aggy missed it.

--
From KT24 - in "Leafy Surrey"

Using a RISC OS computer running v5.11

Bill Wright wrote:
"Agamemnon" wrote in message
. uk...
Wrong. The OP has stated that 'SAT' and 'RETURN' are BOTH F TYPE
CONNECTORS. There are both satellite sockets NOT RF sockets.

See my previous post. By the way, do you not know what 'RF' stands
for? I don't think you do because if you did you would know that
satellite IF signals are RF.

Bill

I bet most of the kids you used to teach had more intelligence than Aggy, I
feel quite sorry for him really.

"Bill Wright" wrote in message
...

"Agamemnon" wrote in message
. uk...
Wrong. The OP has stated that 'SAT' and 'RETURN' are BOTH F TYPE
CONNECTORS. There are both satellite sockets NOT RF sockets.

See my previous post. By the way, do you not know what 'RF' stands for? I

Radio Frequency. That's normally the original signal as received by the
aerial not a heterodyned signal. Satellite cables transmit that data on an
IF or Intermediate Frequency.

don't think you do because if you did you would know that satellite IF
signals are RF.

Bill

blimey, what have i started

There's only one wall plate for tv connections in this flat, in the living
room, and it has 2 x F connectors, and 2 x normal terrestrial type aerial
connectors as found on the back of every TV/vcr/sky box that has an RF
output to feed the TV.

I think i've figured out the flats have one of the communal single dish with
switches and amps systems sky offers, there is one that they install that
has the Tv and radio antennas, and uses a 4 outlet face plate, with 2 F type
sat connectors, and they say those 2 are seperate lnb feeds, for use with a
sky plus box, next to the face plate is a 2 socket phone jack, which sky say
must be placed there for their multi flat distribution system,

they also say the faceplates must be branded sky something or other, and the
one in my flat isnt branded anything, so it may be a generic jobbie that the
return label is not right, and should read sat 2 or something.

but i guess i'll find out tommorow, will take my sky box from my camper and
try it out, if she gets a signal, i just need to get a viewing card off sky
to get the system working.