What you need
FAiello said:
I presently have a Model 6000u and 4900 with a dish pointed at 61.5, 110, and 119 connected to 2 SW-21 switches. What will I need to upgrade my 6000u to the Model 921.
About 1.5 months ago, I got a 921. I had Dish 500 Twin, pointing at 110/119, and a Dish 300 pointing at 61.5. I had 1 SW21, and a Dish 6000. I had a fairly similar setup to what you are referencing, although with fewer connections.
I did a lot of investigation as to minimum requirements, as well as costs, recommendations from better informed people than myself, and I scoured the Internet. Here is what I decided to do:
1) I decided that the upgrade cost of going to DishPro was worth it, rather than continuing to try to use Legacy Dish LNBF's. I went to Ebay & bought a DishPro Twin for ~$50 including S+H. I also bought a DishPro Single for ~$20 including S+H. I bought an SW34/DP34 switch for ~$70, including S+H.
If I had to do it again, I would buy a DP44, which will support 4 Satellite inputs...not just 3. Case in point, if you ever want to get locals over satellite, think Super Dish (105, 110, 119, or 110, 119, 121 - either way, 3 satellite inputs) + 61.5 (maybe) = 4 inputs.
Or, I would buy a DishPro Plus switch...more on that below.
2) To move to DishPro, it is highly recommended that you ensure you are running RG6U cable rated to 2150Mhz. At Lowe's Home Improvement (I'm pretty sure you'll have one near you...), Zenith has a display with all the best materials...RG6U quad-shielded (2 layers aluminum braid + 2 layers aluminum wrap), rated 5-2300Mhz (says so right on the cable...).
THEY ALSO HAVE COMPRESSION ENDS! Rather than crappy crimp-on F-connector ends, they have a little (crappy) compression tool w/10 ends for ~$25.
Good news/Bad news...Although I am a big believer in compression ends, they barely fit in the Dish 500 Twin holder...you know, the plastic arm that connects the steal arm extending out from the actual dish to the LNBF's...I actually broke one of the initial compression ends into 2 pieces while trying to encapsulate it in the plastic connector, and had to redo the end -- but it all does work, and did fit...just very tight.
3) You have to run 2 independent cables from your switch(es) to the back of the 921 -- unless you upgrade all the way to DishPro Plus. I did not, because I believed that the technology was so new that the cost/benefit ratio was not warranted. However, the 921 will support DishProPlus (DPP), and with DPP, you only need 1 cable from the attic to the wall outlet behind your 921, and then you can split the signals to the 2 Sat inputs on the 921.
So, if your wiring absolutely cannot be changed to get 2 cables there, DPP would be the only option. If you can get another cable there, then either Legacy (what you have), DP, or DPP are options...but I would suggest at a minimum, go to DP...it will cost you as much to upgrade your SW21's to an SW64 as it will to just upgrade your LNBF's and Switches to DP, and then you can have fewer wires entering your home, and an easier future expansion to more receivers (or 2-tuner receivers).
4) If you are diplexing OTA onto your satellite feeds, let me warn you right now...I tested this personally...the DP34 switch will NOT pass ANY OTA through it! While the SW21's WILL pass OTA through them, the DP34 will NOT...you'll have to diplex the OTA onto the SAT feed between the DP(34/44) switch and the SAT wall outlet; and you'll need to diplex it off the SAT feed between the wall outlet and the 921.
I have tested this successfully, but not yet implemented my final implementation (waiting until it's nicer out to put up a REAL antenna on the roof...).
5) What I'm about to outline didn't apply to me, as the only Set-Top-Box (STB) that I previously had was the 6000...so after I changed out to 921 and DP, I sold my 6000 on Ebay. Then, I got on the list with Dish to get an 811 for $149 (to effectively replace the 6000...but with DP-capable technology). In your case, if you keep the 4900...you'll only need the 1 sat line to it ( must also be RG6U rated for 2150Mhz), but, you'll need an ~$60-70 DishPro/Legacy adapter (
http://www.switchinfo.info/dishpro.html). My suggestion would be to also consider replacing the 4900 with a newer DP/DPP-enabled receiver, and if you don't need a backup Hi-Def STB (in case the 921 fails or needs service -- the real reason I ordered the 811), then I would suggest another DVR...once you get used to having that functionality on the 921, you'll be unhappy not having it everywhere.
So, in my case, I have 3 wires coming through my roof (my dishes are separately grounded), to the DP34 in my attic. I then pulled 2 new lines from the DP34 to a wall outlet behind my 921. I then pulled 1 new line to an outlet in my bedroom (to where the 811 will go). I then made new 6' cables with the fancy RG6U cable and compression ends to connect the wall outlets to the 921 and 811.
Eventually, I will install an old-fashioned OTA medium-fringe antenna on my roof, run it's line into my attic, where I will amplify, and split. I will then take each split and diplex onto 1 of the 2 lines to the 921, and the line to my bedroom. I will then create 1' RG6U cables to connect my wall outlets to a diplexer and another 6' cable per system to connect the diplexer to both the STB and the OTA connector on the 921/811.
NOTE: I read several places where there may be some problems with passing amplified OTA signals diplexed on the same line as the sat feed. I do not remember all the issues and relationships, and it was explicitly stated that if done wrong, this can toast either/both the DP switch and/or the Sat tuner in the STB. Please investigate that more before Diplexing OTA onto your Sat feed.
The following link provides a really good explanation of the difference between Legacy Sat LNBF's, and DP/DPP LNBF's that stack the frequencies, as well as why this is important...it will make the whole conversation make more sense.
http://www.switchinfo.info/splitter.htm
I have attached my simple reference diagram.