[PCR-1000] Re: antenna switch box 2-->1

Thu, 11 Apr 2002 18:46:03 -0400

I open up the sealed lnbf, and found just a PCB with a lot of surface mount
components.  no relay. it seems to only have 1 input for the antenna, and
the coaxial connector
I can't see how I may use that for my application.
krat

----- Original Message -----
From: "krat" <[email protected]>
To: <[email protected]>
Sent: Thursday, April 11, 2002 1:54 PM
Subject: Re: [PCR-1000] Re: antenna switch box 2-->1

> Very good idea, I already have a spare Dish500 (2 lnbf) dish that is not
> used.
>
> Thanks for all the reply.
> krat
> ----- Original Message -----
> From: "Tom Waters" <[email protected]>
> To: <[email protected]>
> Sent: Thursday, 11 April, 2002 08:55
> Subject: RE: [PCR-1000] Re: antenna switch box 2-->1
>
>
> > There is a switch-box made for folks like myself who have an older Dish
> > Network (18" satellite tv system) that has the older dish, not capable
> > of getting all 500 channels.  I had to pick one up, and install a second
> > dish on my roof, and the switching is done automatically, dependant upon
> > the channel I select. It works identical to what is described below, as
> > mini-dish receivers have an 18v on their line.
> > It was 30 bucks, is weatherproof, and an instant install, in this
> > scanner scenario, you will need to build the interface on the house end
> > to do the switching.
> > Check your local satellite tv store/installer guy.
> > It is an LNB Switchbox.
> >
> > Tom Waters
> > KE4RXM
> >
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]] On Behalf Of Ubbe
> > Sent: Wednesday, April 10, 2002 13:53
> > To: [email protected]
> > Subject: [PCR-1000] Re: antenna switch box 2-->1
> >
> >
> > There are plenty of coax relays available if you look at the satellite
> > receiver business. They need relays to switch between LNB's, so you have
> > good relays designed to work with GHz signals and that are very
> > inexpensive to buy. You have several options, controlled by applying 18v
> > to the coax line, insert a 22KHz tone or tone pulse coded DiseqC
> > signalling. If you get the 18v DC relay type and mount that at the mast
> > foot, you can switch to the discone when 18v are applied and use the
> > longwire when there's no voltage in the coax. Normally scanner antennas
> > and longwires aren't DC grounded so there shouldn't be any problems. But
> > you can easily modify the relay by opening it up and remove a bypass
> > choke. Then there will be no voltage going out to the antennas.
> >
> > Inserting the voltage into the coax line can be done by using readybuilt
> > boxes, that only consist of a choke and a capacitor, or you could open
> > up that relay switch and remove the wires going to the relay coil and
> > solder your own wires there and feed the relay seperatly with a 12v
> > source. The 2GHz relay switch normally costs around $10.00
> >
> > Ubbe.
> >
> > krat wrote:
> > >
> > > I am looking for an electronic switch to select between 2 coaxial line
> >
> > > (1 long wire, 1 discone).  I want a device that can be remotely
> > > controled (or activated by a relay).  I need that because my pcr-1000
> > > is located in the basement and most of the time I'm listening to the
> > > scanner via netmeeting on my laptop upstair.
> > >
> > > Anyone knows if something like that exist on the market?  but I don't
> > > want to add a loss in the signal or an impedance drop.
> > >
> > > Regards,
> > > Krat
> > >
> >
> >
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> >
> >
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