I put in one HD receiver upstairs and one standard def receiver downstairs. There are 3 lnb's on the dish. The upstairs HD receiver reads out low reception at 101, and 119 degrees. There is a reading of 0 at 110 degrees. The downstairs receiver is getting a good signal at all 3 degrees. For the upstairs receiver we have a RG6 from the dish down to the basement then barreled staight to the HD SAT receiver. The downstairs one is comeing off of a multiswitch. I am going to go back and recheck my terminations to see if maybe there is some kind of short or kink in the wire. Do any of you guys see another problem that may be causing this?

If you're multi-plexing 3 LNB's don't all your feeds have to come from a multi-switch?

Yes, the Multiswitch NEEDS be there between the HD receiver and the Dish. the C(110) LNB outputs a 22Khz carrier freqency. None of the older receivers know what do do with that. Some of the current ones as well.

Impaqt and others,
the LNB does not put out a 22 khz tone. That is why you can use either LNB for 101 or 119.

Instead, the receiver puts out a 22 kHz tone to tell the HD multiswitch to select a signal from the 119 or 110 satellite (which look like one LNB to the multiswitch anyway as they are combined via a splitter).

The 22 kHz tone or lack of it tells the multiswitch which LNBs to hook to, then the 13 or 18 volts tells it which polarity to send down to the receiver.

This means that, as explained in another thread, you can aim an LNB on a dish at 119 and receive signals from that satellite without a multiswitch. you won't get anything from 101, but the point is that the 22 kHz tone is not needed to receive those channels, just to get a multiswitch to connect you to them.

Ernie

Yeah, Thon is right. If your wiring description is totally accurate, this should not work right. Such as, if one of the wires from the dish goes to a receiver, how many wires do you have connected to the multiswitch? Which wires are they?

If you connect an HD receiver directly to an LNB, the receiver will think it is looking at different satellites depending on whether it is sending out the 22 kHz tone...but it will just be looking at one satellite. If you check the signal level on the other satellites, the receiver will give you the signal level of the one satellite you are looking at. The receiver cannot tell which LNB signal it is getting; it depends on a multiswitch to respond to the combination of 13 or 18 volts with or without the 22 kHz tone.

Ernie

All of the feeds from the lnb's are being combined right near the dish. Then 2 feeds are going from the combiner to the multiswitch. And another is going straight from the combiner into the HD receiver.

Usually, the "combiner" on the back of a dual satellite dish is, itself, a multi-switch and the individual lines out should all go straight to receivers. (I'm not sure how the third LNB gets mixed in). There should be no need to run two lines to an additional multi-switch. If you have a sat signal meter I would try measuring signal coming directly from the multi attached to the dish. Also, check voltages coming from the receivers. You could have a partially bad multi, a bad receiver, or bad connections on the wire.

John,
Ernie is right, you must run all sat recievers thru the switch. If you don't one LNB is not being controlled correctly. Here is the correct set up'
there should be four lines from LNB/Dish. If you have a multiswitch on the dish, or combined with the lnbs, then you can drive four receivers.....HD or SD. If you need to go to more then four dishes, you will need another switch that can drive a 22 khz output.
I will suggest Spaun 3/8 or 3/12 (three inputs, 8 outputs etc. ) then switch the lnb power control to 22khz and Voila! Contact me directly if you need more clarity. Thom

Ask me for free system designs.option#1.The integrated 5 in 4 out switch built into the new 3 LNB direct TV dish can be taken into say a spaun 5x8(1 in for terr)This will feed standard and HD sat receivers.option#2.You can also take 2 of the legs from the integrated switch into a standard switch to feed stanard receivers and the other 2 legs can be dedicated to HD receivers.Now,if you have the C-kit which is only used if you upgrade the existing 2 LNB dish,you must remove the existing old 4x4 and take the 4 legs(coax)into say the spaun 5x8 BE CAREFULL you must have the 101 going into the low side of the switch and here is the kicker,you must have the 119/110 going into the high side though you must have the "C" kit side going into the H/H side of the switch.Any other method is a cluster#*#**#*#*#*#*.Ask me for free design,for up to 100 HD/standard receiver.