1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Help with Multiswitch

Discussion in 'DIRECTV Installation/MDU Discussion' started by frontiercc, Dec 5, 2010.

  1. Dec 5, 2010 #1 of 27
    frontiercc

    frontiercc Cool Member

    27
    5
    Nov 24, 2003
    I currently have a 3x4 multiswitch feeding two standalone receivers and one DVR- so all 4 ports are used. I want to add another DVR and in fact picked up two used R10 units last night.

    I don't anticipate moving to high def anytime soon as I am putting up an OTA antenna for Hi Def locals. I don't want to get into diplexers since I am only running high def to 1 tv and a dedicated new run is no problem at all.

    Am I correct in that I have to upgrade my existing 3x4 multiswitch to a 3x8 multiswitch? Is there another simpler (Cheaper?) way?

    If the 3x8 is the answer- any recommendations for brands or source?

    Thanks!
     
  2. Dec 5, 2010 #2 of 27
  3. Dec 5, 2010 #3 of 27
    boba

    boba Hall Of Fame

    5,580
    0
    May 23, 2003
    I agree a WB68 maybe the best route, check ebay you might find better prices.
     
  4. Dec 5, 2010 #4 of 27
    frontiercc

    frontiercc Cool Member

    27
    5
    Nov 24, 2003
    So if I get this, do I need to terminate the unused inputs and outputs?

    I have a dual LNB dish with two cables coming into the switch.

    If buying used, do the switches go bad or are they pretty much bulletproof? (I'm thinking of ebay and what I need to watch for)

    Also- the specs reference "Flexports can only be accessed with latest APG (Advanced Program Guide) satellite receivers. Earlier, non-APG satellite receivers can select the first 4 ports only (101/99/103/110/119W satellites)"

    I need a total of 5 ports now and am concerned that I will only still have 4 ports available to my SD receivers.

    Trying to read up on this thing, seems like serious overkill for feeding 5 receivers off of a dual lnb dish. I was thinking I could just upgrade my 3x4 to a generic 3x8 that supports satellite frequencies. Is there an advantage to going with a switch this complex?
     
  5. Dec 5, 2010 #5 of 27
    AntAltMike

    AntAltMike Hall Of Fame

    3,787
    108
    Nov 20, 2004
    College...
    WB 6x8s commonly sell new on eBay for $20 to $25, including shipping. I've bought a couple dozen there in that price range from various sellers with no problems whatsoever. There is no reliable source for 3x8s that will sell for less than that.

    Your primitive receivers can utilize any or all of the 8 output ports but only call for input signals from the first four input ports. That is all the functionality that those receivers need.
     
  6. Dec 5, 2010 #6 of 27
    joe diamond

    joe diamond Hall Of Fame

    3,071
    0
    Feb 28, 2007
    You can also cascade the 3x4. Run two of the four outputs to a second 3x4. This will give you six usable sat lines. This is "not supported" but works. Next up in price is the 3x8. Solid signal is as good as it gets. Shipping small parts really runs the costs so if you can find one locally you might consider it

    Joe
     
  7. Dec 5, 2010 #7 of 27
    spartanstew

    spartanstew Dry as a bone DBSTalk Club

    12,564
    61
    Nov 16, 2005
    Wylie, Texas
    I've got one you can have for $20 shipped. Send me a PM if interested.
     
  8. Dec 5, 2010 #8 of 27
    jdspencer

    jdspencer Hall Of Fame

    6,637
    13
    Nov 7, 2003
    No terminators should be used on the WB68.
     
  9. Dec 5, 2010 #9 of 27
    frontiercc

    frontiercc Cool Member

    27
    5
    Nov 24, 2003
    Wow- thanks for all the great info folks.

    Just one more question- I see the input ports are labeled per voltage whereas my current setup there is no rhyme or reason to which input goes to which side of the lnb. How do I tell which input is which in terms of voltage.

    And AltAntMike- who you calling primitive?
     
  10. AntAltMike

    AntAltMike Hall Of Fame

    3,787
    108
    Nov 20, 2004
    College...
    Consider it a compliment. Studio guitarist Al Kooper's self-described "primitive" organ playing made for perfect accompanyment to Bob Dylan's primitive singing in the studio recording of "Like a Rolling Stone.":D
     
  11. joe diamond

    joe diamond Hall Of Fame

    3,071
    0
    Feb 28, 2007
    The voltages change...from the receiver...13v than 18v. For most purposes the lines are interchangeable. The round dish with the single LNB pointed at 101 with two lines out was the world beater of just a little while ago. Now considered primitive even though there are thousands of them out there...still ticking.

    If you cascade multiswitches you should connect the 13 to the 13 & the 18 to the 18.

    Joe
     
  12. AntAltMike

    AntAltMike Hall Of Fame

    3,787
    108
    Nov 20, 2004
    College...
    "Cascading" multiswitches, as the term is commonly used here, means, in this instance, connecting the satelite inputs from one 3x4 multiswitch directly to the LNB, and then using any two of that multiswitch's outputs as the two inputs into a second 3x4 multiswitch.

    There aren't any dedicated 13 volt and 18 volt outputs on 3x4 multiswitches, nor are there any dedicated 13 volt or 18 volt outputs on the industry-standard dual LNBs. A dual LNB or a 3x4 multiswitch will source odd numbered transponders from any port when it perceives a control voltage of 13 volts, and will source even numbered transponders when it perceives a control voltage of 18 volts.
     
  13. carl6

    carl6 Moderator Staff Member DBSTalk Club

    12,475
    937
    Nov 15, 2005
    Seattle, WA
    If you do decide to get the WB68 multiswitch, connect the two lines from your dish to the 13V no tone and the 18V no tone inputs on the multiswitch. It does not matter which coax goes to which input. Leave the other two (22KHz tone) inputs open and leave the flexport inputs open.

    You then have 8 outputs you can use, all of which are functionally equal. Any unused output should be left open.
     
  14. joe diamond

    joe diamond Hall Of Fame

    3,071
    0
    Feb 28, 2007
    Thanks,

    It has been awhile. Output equality is what the multiswitch does.

    Joe
     
  15. HoTat2

    HoTat2 Hall Of Fame

    7,274
    180
    Nov 16, 2005
    Los...
    Unless you were thinking of "splitting" multiswitches at the time instead of "cascading" them. In which case your statement then is correct and very important to carefully observe. ;)
     
  16. joe diamond

    joe diamond Hall Of Fame

    3,071
    0
    Feb 28, 2007
    Yes, I've done that before...4x4s etc. This was just a brain fart.

    Thanks...me mind is like a steel trap! (rusty however)

    Joe
     
  17. VARTV

    VARTV Godfather

    482
    0
    Dec 14, 2006
    Virginia...
    I'm glad I stumbled on this Thread... Help! I have a Zinwell WB68 filled up and would like to add just one more line. What's the easiest way to do it??? Cost is not a factor just the simpliest way...
     
  18. AntAltMike

    AntAltMike Hall Of Fame

    3,787
    108
    Nov 20, 2004
    College...
    If you only need the five main satellites, 99, 101, and 103, 110 and 119, then you can just get another WB68 for $20 to $25 on eBay and connect the second WB68's first four inputs to any of the first WB68's outputs, but if you also need the odd satellite for your locals or for foreign programming (I forget if it's 72.5 or 95: I think DirecTV got rid of one but not the other), then you'll also need a two-way high frequency splitter to split that odd satellite's downlead.
     
  19. VARTV

    VARTV Godfather

    482
    0
    Dec 14, 2006
    Virginia...
    I get programming from all 5 of those sats only...

    And are you saying use 4 outputs on the old WB68 to feed the four inputs on the new WB68? If so, I guess this will give me 12 outputs...

    I'm using the Sonora Power Inserter. Should it stay connected to the original WB68?
     
  20. AntAltMike

    AntAltMike Hall Of Fame

    3,787
    108
    Nov 20, 2004
    College...
    Yep, keep the power inserter where it is.
     

Share This Page