A few DirecTV techncal questions

[Guest]

Archived from groups: alt.satellite.tv (More info?)

I was looking at Lyngsat's info on DirecTV, and I noticed that most
locals are in the 400s and 800s. However, on my receiver (Hughes
Director Pack I think it is), my locals are in the double digits. Is
that a function of my receiver or is it something DirecTV does?

For the locals which show USA (not spot), does that mean that
potentially anyone can receive them? Or is there is a US law that
prevents this?

Since DirecTV uses a small dish, does that mean it's Ku band? And if
so, assuming I have the right receiver, can I use that dish and same
LNB for FTA programming?

Thanks...

 

[Guest]

Archived from groups: alt.satellite.tv (More info?)

In article <1f5b80hjk3rcvlef4nvs6rsf2ssnpkli0d@4ax.com>, DH
<thehobster@mail.coserv.net> wrote:

> I was looking at Lyngsat's info on DirecTV, and I noticed that most
> locals are in the 400s and 800s. However, on my receiver (Hughes
> Director Pack I think it is), my locals are in the double digits. Is
> that a function of my receiver or is it something DirecTV does?

This is a function of the receiver. The locals that you subscribe
to are presented to you using the one or two digit channel numbers.
One of my dish boxes lets me see both channel mappings, while my
other box only lets me see the one/two digit channel numbers.

> For the locals which show USA (not spot), does that mean that
> potentially anyone can receive them? Or is there is a US law that
> prevents this?

The law will only allow you to get your own local stations. That
way you see the right TV commercials for your location. If no
locals are in range, then you can apply to get the national feeds.
Or you can get a hacked box and get all the locals.

> Since DirecTV uses a small dish, does that mean it's Ku band? And if
> so, assuming I have the right receiver, can I use that dish and same
> LNB for FTA programming?

No. The small dish is a result of using very high power direct
broadcast satellites (DBS). The LNB's are designed for specific
frequencies, and they are pretty specific to DBS applications.
You can, however, modify old Primestar equipment, but the work
to do so is likely to more than what new FTA stuff costs.

-john-

--
====================================================================
John A. Weeks III 952-432-2708 john@johnweeks.com
Newave Communications http/www.johnweeks.com
====================================================================

 

[user]

Archived from groups: alt.satellite.tv (More info?)

> No. The small dish is a result of using very high power direct
> broadcast satellites (DBS). The LNB's are designed for specific
> frequencies, and they are pretty specific to DBS applications.
> You can, however, modify old Primestar equipment, but the work
> to do so is likely to more than what new FTA stuff costs.

No again. The smaller dish is a result of going to a higher frequency. The
"old" 3 meter dishes worked in the 3 - 4 GHz range and the "new" smaller
dishes work in the 9 - 14 GHz range. The higher the carrier frequency the
shorter the wave length and therefore the smaller the dish can be.

 

[Guest]

Archived from groups: alt.satellite.tv (More info?)

"<©¿©>" <user@127.0.0.1> wrote in message
news:LZednfQULJAISxbdRVn-sw@adelphia.com...
> > No. The small dish is a result of using very high power direct
> > broadcast satellites (DBS). The LNB's are designed for specific
> > frequencies, and they are pretty specific to DBS applications.
> > You can, however, modify old Primestar equipment, but the work
> > to do so is likely to more than what new FTA stuff costs.
>
> No again. The smaller dish is a result of going to a higher frequency.
The
> "old" 3 meter dishes worked in the 3 - 4 GHz range and the "new" smaller
> dishes work in the 9 - 14 GHz range. The higher the carrier frequency the
> shorter the wave length and therefore the smaller the dish can be.
>
NO NO NO
Dish size has nothing to do with the carrier frequeny. The smaller dish can
be used because of the increase in power of the signal from the transponder.
The higher frequency is received by using the correct LNBF and having the
correct distance from the LNBF to to surface of the Dish.

 

[user]

Archived from groups: alt.satellite.tv (More info?)

that too...

 

[Guest]

Archived from groups: alt.satellite.tv (More info?)

olfart wrote:
>
> "<©¿©>" <user@127.0.0.1> wrote in message
> news:LZednfQULJAISxbdRVn-sw@adelphia.com...
> > > No. The small dish is a result of using very high power direct
> > > broadcast satellites (DBS). The LNB's are designed for specific
> > > frequencies, and they are pretty specific to DBS applications.
> > > You can, however, modify old Primestar equipment, but the work
> > > to do so is likely to more than what new FTA stuff costs.
> >
> > No again. The smaller dish is a result of going to a higher frequency.
> The
> > "old" 3 meter dishes worked in the 3 - 4 GHz range and the "new" smaller
> > dishes work in the 9 - 14 GHz range. The higher the carrier frequency the
> > shorter the wave length and therefore the smaller the dish can be.
> >
> NO NO NO
> Dish size has nothing to do with the carrier frequeny. The smaller dish can
> be used because of the increase in power of the signal from the transponder.
> The higher frequency is received by using the correct LNBF and having the
> correct distance from the LNBF to to surface of the Dish.


I have to agree.
In terms of power output, the more modern satellites, used for DTV and
DISH for example, are almost around 10 times those that are used for
other broadcast signals like Telstar5 for instance.
10 to 15W for the latter, VS well over 100 watts of output for
DTV/DISH.

 

[Guest]

Archived from groups: alt.satellite.tv (More info?)

AH#49 wrote:
>
> olfart wrote:
> >
> > "<©¿©>" <user@127.0.0.1> wrote in message
> > news:LZednfQULJAISxbdRVn-sw@adelphia.com...
> > > > No. The small dish is a result of using very high power direct
> > > > broadcast satellites (DBS). The LNB's are designed for specific
> > > > frequencies, and they are pretty specific to DBS applications.
> > > > You can, however, modify old Primestar equipment, but the work
> > > > to do so is likely to more than what new FTA stuff costs.
> > >
> > > No again. The smaller dish is a result of going to a higher frequency.
> > The
> > > "old" 3 meter dishes worked in the 3 - 4 GHz range and the "new" smaller
> > > dishes work in the 9 - 14 GHz range. The higher the carrier frequency the
> > > shorter the wave length and therefore the smaller the dish can be.
> > >
> > NO NO NO
> > Dish size has nothing to do with the carrier frequeny. The smaller dish can
> > be used because of the increase in power of the signal from the transponder.
> > The higher frequency is received by using the correct LNBF and having the
> > correct distance from the LNBF to to surface of the Dish.
>
> I have to agree.
> In terms of power output, the more modern satellites, used for DTV and
> DISH for example, are almost around 10 times those that are used for
> other broadcast signals like Telstar5 for instance.
> 10 to 15W for the latter, VS well over 100 watts of output for
> DTV/DISH.

Sorry. Make that 20 watts for T-5's 24 C-BAND signals.
T5 has 24 KU bands as well, and they pump out 100 watts.
(Just looked that up)
http/www.adec.edu/tag/technote_0527.html

So yes, the freguency has "something" to do with being able to use a
smaller dish, but that's because the more extreme power in the KU band
side that makes it all possible.

 

[Guest]

Archived from groups: alt.satellite.tv (More info?)

AH#49 wrote:

> AH#49 wrote:
> >
> > olfart wrote:
> > >
> > > "<©¿©>" <user@127.0.0.1> wrote in message
> > > news:LZednfQULJAISxbdRVn-sw@adelphia.com...
> > > > > No. The small dish is a result of using very high power direct
> > > > > broadcast satellites (DBS). The LNB's are designed for specific
> > > > > frequencies, and they are pretty specific to DBS applications.
> > > > > You can, however, modify old Primestar equipment, but the work
> > > > > to do so is likely to more than what new FTA stuff costs.
> > > >
> > > > No again. The smaller dish is a result of going to a higher frequency.
> > > The
> > > > "old" 3 meter dishes worked in the 3 - 4 GHz range and the "new" smaller
> > > > dishes work in the 9 - 14 GHz range. The higher the carrier frequency the
> > > > shorter the wave length and therefore the smaller the dish can be.
> > > >
> > > NO NO NO
> > > Dish size has nothing to do with the carrier frequeny. The smaller dish can
> > > be used because of the increase in power of the signal from the transponder.
> > > The higher frequency is received by using the correct LNBF and having the
> > > correct distance from the LNBF to to surface of the Dish.
> >
> > I have to agree.
> > In terms of power output, the more modern satellites, used for DTV and
> > DISH for example, are almost around 10 times those that are used for
> > other broadcast signals like Telstar5 for instance.
> > 10 to 15W for the latter, VS well over 100 watts of output for
> > DTV/DISH.
>
> Sorry. Make that 20 watts for T-5's 24 C-BAND signals.
> T5 has 24 KU bands as well, and they pump out 100 watts.
> (Just looked that up)
> http/www.adec.edu/tag/technote_0527.html
>
> So yes, the freguency has "something" to do with being able to use a
> smaller dish, but that's because the more extreme power in the KU band
> side that makes it all possible.

Don't forget to look at the footprint, which is normally covering a much larger area
for the C-band. As the transmitted power is spread over a larger area for the
C-band, the signal strength is lower for a given output power.

I'm also quite sure the beam width of a given antenna is narrower for a higher
frequency so the frequency has a direct effect. The dish has to be significantly
bigger than the wave length to make the dish efficient. As an example, you can't use
a dish for terrestrial TV, which is below 800MHz, without making the dish extremely
big.

And of course, output power is one factor.