What LNB Type Setting for QPH-031

[rleehamn]

What LNB Type Setting for QPH-031?

Hello everyone, hope all is well. Weather still a little cool here in Oklahoma, but I'm sure it's colder elsewheres.

When I first got my motorize sys from Sadoun I upgraded to the Invacom Uni.Single SNH-031.

Then I wanted to see about picking up circular so I order a Quad QPH-031 10.75/11.25GHz and a S-SM21H 0/22KHz (950-2150MHz)

I hooked it up just like the little instruction sheet said, then went rescan most of the birds and lost alot of chanls.

It's been several months that I let it go that way till today, I did a scan and wasn't happy, so I went out and change back to the SNH-031 did scan and had all my channels (without the S-SM21H in place) so finally after hooking it this and that way, I came to the conclusion everything outside was correct to begin with, so I hook the quad and everything back to normal went inside and after reading about 20mins here and not finding the correct answer. From what I gather and tried I started getting chanls with the quad that I wasn't before.

Question is the QPH-031 Universal?
In the menu of my MercuryII I had to change the LNB type from Univ LNB (9750,10600) to LNB-10750 and the chanls and signal showed up.
On some birds.

On another bird this setting did not work, I had to change the Lnb type to Wide LNB (9750,10750) to get the previous chanls I've scan in the past and the signal to show.


With the QPH-031 my MercuryII settings is:

LNB Type: Lnb-10750 (on some Wide Lnb(9750,10750 For example G3C 95)
Positioner: Usuals
0/22kHz: On
Switch: DiSEqC 1.0
Input: Lnb1
Legacy Switch: None

Anybody know what my settings should be?

Many thanks

[rainman]

I don't have a Mercury yet got the ultra hooked to the qph-031
lo 10750
22khz off
disqec set to which ever port linear side is hook to for me it is 2
lnb power on
motor set to usuals.
this works fine for me the qph is a standard lnb.
on circular side set the lo to 11250.

[rleehamn]

Thanks,

I will give that a try..

[rainman]

you're welcome let us know how it goes.

[rleehamn]

Ok I finally had a chance to just test a few.

On most sats I set
Lnb - 10750
Positioner - Usals
22kHz - on (This works)

With the 22kHz in the off position, my sig and quality was week and could not view the channels that was previous scaned with just the linear lnb.

Now on IA6 and some other sats are different. (The above setting would not work)

Sat IA-6 (93)
LNB Univ LNB (9750-10600)
Positioner Usals
22KHz Auto
Switch None

That's the only setting I can get to make IA6 view all the previous channels or if I rescan the channels. (Otherwise I get no signal or If I rescan I get no channels)

Thanks

[elgemcdlf]

You have something desperately wrong. The QPH is a standard lnbf linear. The correct setting is 10750. As to the 22Mkz switch. It is acting as an A/B switch so if you are using the switch as powered on the linear side then all linear sats are designated as powered. Unpowered opens the path to the circular port of the lnbf. This is why you show very weak signal when trying to watch a linear sat with it unpowered and on the incorrect lnbf setting.

Next on the list is freq range of a standard lnbf vs. UNI. The standard has a smaller range thus less tp's viewable with it. Next is dish size. What is your dish size? The QPH is a bit heavy for the smaller dishes and may be weighing down your lnbf mounting arm just enough to allow reception in some spots and not others. Especially is your dish alignment was not correct to begin with.

I assume you have the QPH installed correctly in the mount. Coax ports pointing straight down when the motor is at 0?

[wejones]

What Steve said above is all true, but in addition, I think there is one other possibility for what caused the symptoms.

Just a guess here, but can I assume that a new blind scan was not done with the new settings? Ie that you were just tuning to previously scanned channels and expecting them to lock? What I'm thinking is that this may not be an issue with respect to the current settings, but with respect to the settings when the original channels were scanned in.

What I'm guessing is that on those satellites that don't work now with the 10750 setting, that the wrong lnb type/LO freq may have been used back when they were scanned in with the universal lnbf. What that would cause, would be that if you scanned them in with a blind scan, you'd find some channels, but they would be stored in the receiver with the wrong frequency. Then, when you NOW enter the proper LN freq/ lnb type, the channel data stored in the receiver will not be correct. A quick way to find out is to tune in one of those channels that you were able to receive before, and hit the info button twice, and look at the Freq/SR values at the top of the display. If these values do not agree with what is listed in Lyngsat for those channels, but is perhaps off by 150 MHz, then this is certainly what happened.

If by chance this is the cause, then, the best thing you could do would be to delete all the channels on the offending satellites, put the sat specs back on the 10750 value with 22khz on, and do a blind scan, and it should scan in those channels again with the proper freqs.

So anyway, what channels (Sat, name, freq, SR) were you able to get before, that you can't get now???

[rleehamn]

I'm getting alot of rain today, so when it clears and I got some extra time. I'm going to do some simple tests then report back.

Thanks for the help..

[rleehamn]

Alright it seems to be going good now. I finally got to do a few tests.

To fill in some blanks up above, I started out using SNH-031 and switch to a QPH-31.

With out knowing to change the LNB type from 9750.10600 to the correct 10750 and 22 on and port number. (Took it for granted that it was the same lnbf -just a quad with C and L. and that the stb would make it all tick.)

Since I've found all that out, then I made the first post above.

Heres some of the things I've done:
When I first hooked up the quad, I had chnls off the bat. (Don't remember which sats.) I then checked some of the other sats. I seen that some chnls were there and some were all blacked out, so I done a new blind scan, and it made duplicates of the chnls. The new scan chnls work, so I deleted out the old that was black, except that I had old chnls that was not replace in the new blind scan. Now I made all my scans at first using the Lnb type- univ 9550.10600. Then after reading here found to change the lnb type, then found out about the 22khz. But still after the new settings and with new blind scans, what was IA6 was not working. So I went ahead with the new name change download and reset to factory, this time everything was working that I've have scan. I got sat 93, 97, and 95. I will try more later.

Thanks for all the help.

[rainman]

glad to here you got it going.