Dish Change Question

[RTCDude]

Also we haven't explained what block downconversion (the 'B' in LNBF) exactly is. An LNA (either standalone or as the front section of an LNB/F) simply amplifies the satellite signal without altering its frequencies. On early C-band systems, the LNA was connected to a downconverter, usually via a short length of large-dia. coax using the large 'N' connectors. Couldn't send the signal on regular coax or very far on any coax as it's the microwave-frequency sat signal. The downconverter was typically strapped to the dish pole or to the feed assembly (LNA & feedhorn) and controlled by the rx via wire to select individual xpdrs, which the downconverter then sent in to the rx on regular coax using a much lower-frequency "intermediate" (IF) carrier, typically 70 mhz (this could be called "single downconversion").

With block downconversion, all xpdrs are downconverted simultaneously to individual IFs (a "block" of frequencies), either with a standalone BDC connected to LNA or by using an LNB (which combines LNA and BDC). On C-band, either all 12 xpdrs as V (vertical polarization) would be sent in at once, with the rx then tuning the desired 1 of the 12, or if then selecting a ch. on an H (horizontal) polarization, the rx would command the feed to switch from V to H, and then the same 12 xpdrs as H-polarized would be sent in, on the same IF carriers, to pick from. The limitation was that any 2nd receiver in the home would only be able to select from odd #'d ch's if the 1st rx was on odd, or only even #'d ch's if the 1st was on even. And of course, comparing with DBS, you couldn't view from 2 different sat positions at once. Later C-band options included using a feed with 2 LNB's, one mounted horizontally and the other vertically, to allow for independent odd-even selection (but still limited to same sat).

When DBS came out it continued this same block downconversion for Single LNBFs, adding H/V switching by the device power (on the coax) being toggled between 13 and 18v. Dual LNBFs then allowed the use of added in-line switches to do the toggling to serve multiple rx's, but you had to run 4 coaxes in from the dish (for the initial 500, 2 for 300). The initial 500 Twin had built-in switching and still used 13/18 to switch. DP (DishPro) Twin (and Single) then "stacked" both the H & V signals into 2 differentiated blocks of IFs that all went down the coax together, so you could go straight from LNBF to 2 dual-tuner rx's with no switch in-line (just those HF splitters at the rx's). The freq. stacking resulted in higher-ranging IFs (intermediate block freq's) that sometimes exposed weaknesses in coax runs. DPP (DishPro Plus) merely added an input to the DP Twin/Triple that could combine in the output from a DP Single on a separate dish with no need for a combiner/switch. DP & DPP are exactly the same to rx's save for this added input connection.

Now somebody gets to explain how the DPH works, as I have no idea...

Nice history, I didn't know all of that.

And I also would love a detail explanation of how DPH works, but I suggest a new thread for that so as to not hijack this thread.

 

[HipKat]

 

[zippyfrog]

Thanks for sharing that! I have never seen that type of Dish before!

 

[HipKat]

Thanks for sharing that! I have never seen that type of Dish before!

You probably seen the reflector, but not the LNB

 

[charlesrshell]

You probably seen the reflector, but not the LNB

What is that setup?

 

[dishdude]

You probably seen the reflector, but not the LNB

Looks so odd not being a light grey color.

 

[MikeD-C05]

We're an RSP for Dish and the only reason I haven't posted a picture is because I'm an area manager, not a tech, so I'm not out installing them, but if you insist, I will get you all a nice, clear picture today. IDGAD what retailers say. Retailers on the Heirarchy are at the bottom of the list. This isn't the old days. Retailers don't have metrics, don't have sales, and are a dying breed.
As for EA, I didn't say they were retiring it right now, I said as early as next spring.
ALL of our upgrade and service call workorders include arc swaps to Western Arc - other than the Davenport area and ALL of our New Connects call for WA lnb's. Your area has never been on EA.

Example of a TC today:

Equipment Required

LNB DPH WA Twin
Dish 500

Appointment
Troubleshoot Video
Set Up Dish
Existing Customer
Survey Site
Educate Customer
Setup Migration
Orbital Location
Remove 61.5 Orbital
Remove 72.7 Orbital
Set Up 110 Orbital
Set Up 119 Orbital

Also, I don't appreciate this insinuation that I'm just making things up

You are just getting a little "cocky" Hipkat. By the way I like your new picture.

 

[HipKat]

You are just getting a little "cocky" Hipkat. By the way I like your new picture.

Thanks!
I liked my old one, but somebody didn't and they removed it and I don't mean the Buffalo Bills logo

 

[dishrich]

You probably seen the reflector, but not the LNB

Thank you much for all the pics...
I'm particularly glad you posted the whole dish, as I did not know that the new WA LNBF would use a different mounting yoke than the previous "Y" mount from the earlier D500. It appears to be a new yoke that is specifically for this new D500 DPH WA LNBF, correct?
Does the LNBF come with the new yoke, or is it a separate part that must be ordered?

 

[HipKat]

Thank you much for all the pics...
I'm particularly glad you posted the whole dish, as I did not know that the new WA LNBF would use a different mounting yoke than the previous "Y" mount from the earlier D500. It appears to be a new yoke that is specifically for this new D500 DPH WA LNBF, correct?
Does the LNBF come with the new yoke, or is it a separate part that must be ordered?

It's a separate part. When I get back to my shop next week, I can pull the DN numbers

 

[dishrich]

Thx - one last question, what are the connections on it? I would assume there are 2 outputs, like on the other DPH LNB's, correct?
And like on those others, when you connect an H3 to the 1st output, the other output is disabled, correct?
I also assume there is NO input, since obviously all the other orbital slots are/will be gone, correct?

 

[HipKat]

Thx - one last question, what are the connections on it? I would assume there are 2 outputs, like on the other DPH LNB's, correct?
And like on those others, when you connect an H3 to the 1st output, the other output is disabled, correct?
I also assume there is NO input, since obviously all the other orbital slots are/will be gone, correct?

Correct on the outputs, but for some reason, it does have an input

 

[charlesrshell]

Correct on the outputs, but for some reason, it does have an input

View attachment 180825

HipKat, do you have a pic of the DPP LNBs? That's what I need for 119 and 110 to go to my DPH42 switch.

 

[HipKat]

HipKat, do you have a pic of the DPP LNBs? That's what I need for 119 and 110 to go to my DPH42 switch.

They're the same as they've always been. And they still use a 1000.2 dish.

 

[charlesrshell]

They're the same as they've always been. And they still use a 1000.2 dish.

Is there a way to get DPP with a 500 dish instead of 1000.2 dish?

 

[n0qcu]

Is there a way to get DPP with a 500 dish instead of 1000.2 dish?

You need dp not dpp (either would work) to use your dph 42 switch.
So I believe any of the following should work:
DP single or dual (would need two)
Dp or Dpp twin
That is of course presuming you no longer need 118

I of course am not sure what is available of those older LNB's

 

[dishrich]

DP single or dual (would need two)
Dp or Dpp twin

Post in thread 'Dish Change Question'

Thursday at 4:16 PM

First, the Dish 500 antenna ITSELF is not a new dish; it's the very same from back when it first came out back around 2005.

The (alleged) DPH twin WA LNBF, that nobody else has seen yet, IS new & supposedly fits on the same "Y" yoke on the existing Dish 500 antenna. And just like the any of the DPH LNBF's, it will NOT work with a DPH42 switch, period.

If you want a Dish 500 antenna & still need to use your DPH42 switch, you would need either a DP twin, DPP twin or (2) DP single LNB's, all which also fit on the same "Y" yoke.

OK, thanks dishrich. So what I want is twin DP...

• charlesrshell

Yes, I already gave him the same answer 2 pages back - but he was specifically asking HipKat, if THEY would be able to supply any of those. (which they might not, since it appears they're now using a "new style" D500...but they're all over the place on ebay)

That is of course presuming you no longer need 118

118 is gone, hence why he's wanting a D500

 

[charlesrshell]

Post in thread 'Dish Change Question'

Thursday at 4:16 PM

First, the Dish 500 antenna ITSELF is not a new dish; it's the very same from back when it first came out back around 2005.

The (alleged) DPH twin WA LNBF, that nobody else has seen yet, IS new & supposedly fits on the same "Y" yoke on the existing Dish 500 antenna. And just like the any of the DPH LNBF's, it will NOT work with a DPH42 switch, period.

If you want a Dish 500 antenna & still need to use your DPH42 switch, you would need either a DP twin, DPP twin or (2) DP single LNB's, all which also fit on the same "Y" yoke.

OK, thanks dishrich. So what I want is twin DP...

• charlesrshell

Yes, I already gave him the same answer 2 pages back - but he was specifically asking HipKat, if THEY would be able to supply any of those. (which they might not, since it appears they're now using a "new style" D500...but they're all over the place on ebay)


118 is gone, hence why he's wanting a D500

I only want 110 & 119. I was just thinking the bigger 500 would be better.

 

[MikeD-C05]

I only want 110 & 119. I was just thinking the bigger 500 would be better.

I remember when you could use a switch (DP 21 ) and two dishpro lnbs and use to large 30" dishes for 110 and 119 and get a great signal for you service in the high numbers. But that was years ago. My aunt had a set up like that in the country. She rarely lost signal unless it was raining cats and dogs.

 

[charlesrshell]

Dish installers, how do you ground a pole mount setup now days? Is the pole a good ground or do you also run a green ground wire back to the home ground?