1000.2 or 1000.4

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Original poster
Nov 1, 2013
438
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North Liberty, Indiana
I was talking with the installer when I got dish the other day about the 1000.2 vs the 1000.4. I was given the 1000.2 eastern, he mentioned if that LNB was put on a 1000.4 arm and reflector plate it will bring the signal up. I have a 1000.4 lnb and dish laying around.

Should I swap it out with the 1000.4 or put the 1000.2 lnb on the 1000.4 dish?
 
I have to agree with garys. You would not gain that much signal strength by swapping to the 1000.4. It probably would not be worth it unless you are having signal strength issues now with your current setup. If rain fade is not a problem, it is probably more effort than it is worth to swap the LNBs to the other dish.
 
The 1000.4 reflector is designed to focus on a line across three lnb's whereas the 1000.2 is designed to focus on a line across 2 lnb's that is about 2/3 the length of the line for the 1000.4.

Therefore the reflector for the 1000.4 MUST be larger to focus the same or similar signal strength on a longer line.

The jist of the matter is, the tech did not know what he was talking about, just assuming a larger pan means more signal, which it does not necessarily mean.
 
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The 1000.4 reflector is designed to focus on a line across three lnb's whereas the 1000.2 is designed to focus on a line across 2 lnb's that is about 2/3 the length of the line for the 1000.4.

Therefore the reflector for the 1000.4 MUST be larger to focus the same or similar signal strength on a longer line.

I'm not sure that's the whole story. I always thought that the 1000.4 had a bigger dish to get the tighter beam required to separate 72.6 from 77. A larger aperture will have a lower diffraction limit. As a side benefit, you should get better SS too, but not by that much.

And oh by the way, the 1000.2 is sold with 3 LNBs, not 2 as you say it was designed for. I suppose that could be right, but it seems to me dumb to design a dish for 2 LNBs and then put 3 on it.
 
The 1000.4 reflector is designed to focus on a line across three lnb's whereas the 1000.2 is designed to focus on a line across 2 lnb's that is about 2/3 the length of the line for the 1000.4.
If, as seems very likely, the 1000.2ea reflector is the same as that of the 1000.2 dish, it was NOT designed for two feedhorns as you assert.
 
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The reflector on the 1000.4 is only about 15% bigger than the reflector on the 1000.2, which roughly corresponds to a 0.6dB increase in gain. For me a 0.6 dB increase in gain would be a case of “if it aint broke don’t fix it”. (Properly placing Dish LNB’s on a 1.2m dish would have about 6dB of gain over a 1000.2, but that still would not overcome 10dB+ of loss from rain fade so it is still a question of “why bother”.) If a 1000.2 gets the channels the OP is subscribing to and the OP is not having issues on clear weather days it is probably best to leave well enough alone.
 
Let me pitch in with my personal usage of Eastern arc from 1000.2 to 1000.4. Note: I'm located in Los Angeles and Eastern Arc is not designed for installation on the west coast.

I had the dish 1000.2 installed and I would pull signals of about 11 to 15 in yellow on satellite 72 but 61.5 came in at about higher 20's which is usable. I went ahead and replaced the dish form 1000.2 EA to 1000.4 EA with three LNB's. My aim was to point to 72.7, 61.5 and ignore 77 as I really didn't need that. 72.7 came in in higher 30's and 61.5 went up to 50's and 77 came in at 60's which is a vast difference from 1000.2.

So if you ask me, if you are in a low signal area or on the west coast, I'd stay away from the 1000.2

In terms of LNB, you cannot switch between the dishes as the 1000.2 EA is dual lnb and lacks 77.
 
Thanks for the input everyone! I compared a 1000.4 to my 1000.2 ea. It got slightly better signal on 61.5 and it was about the same on 72.7.

I ended up moving the dish to a concrete filled pole for the one the tech installed was a bit flimsy. I swapped the dish to the 1000.4 while I was at it and all is working well.
 
The same naming convention as previous dishes the 300, 500, 1000, etc... The numbering is loosely related to the potential channel capacity of the received satellites. The ".2" and ".4" simply designate different models in the same dish class, albeit with minor size differences.
 
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Doesn’t one of those have the capability of receiving 4 satellite positions?


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The 1000.2 can be equipped with an LNB that receives the three western arc sats at 110, 119, and 129 degrees, or an LNB that receives two of the three eastern arc sats at 61.6 and 72.7 degrees. The 1000.2 can be fitted with either DPP or DPH LNB's.

The 1000.4 can be equipped with an LNB that receives the three western arc sats at 110, 119, and 129 degrees, or an LNB that receives the three eastern arc sats at 61.6, 72.7, and 77 degrees. The 1000.4 can only be fitted with DPP LNB's, although there is a DPH42 switch available that converts the DPP LNB output to DPH format.
 
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