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

Mon, 15 Apr 2002 12:28:52 -0600

Krat-
The device I was referring to is NOT a Dual LNB that is on the dish,
this is a small box, looks like a regular splitter box (2 in 1 out) for
coax, but slightly bigger. This box has relay, etc. in it, and is not
normally sold with a system, it is purchased seperately.  If you need me
to I can go on the roof and look at mine, get numbers, etc.  Email
direct.

Tom

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Krat
Sent: Thursday, April 11, 2002 16:46
To: [email protected]
Subject: Re: [PCR-1000] Re: antenna switch box 2-->1

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
> > >
> >
> >
> > _______________________________________________
> > PCR-1000 mailing list
> > [email protected] 
> > http://mailman.qth.net/mailman/listinfo/pcr-1000
> >
> >
> >
> >
>
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