Monoblock

[thered]

Monoblock problem

does the monoblock sit in reverse ??

if i clamp hotbird lnb surely astra is to the left (looking from dish down lnb)

read somewhere its on the right but right is more west

dont understand 19 east is more east than 13 east

[chopps]

If you think of your dish is a big curved mirror reflecting the signal on to the LNB, you'll see why it's the wrong way round.

[shankill2012]

Yes sats will be opposite of what they normally are- 19e on the left and 13e on the right looking at the front of the dish

[ramjet]

kick a ball at an angle against a wall (wall-ee ) and it bounces AWAY from you, so an easterly sat signal bounces on the dish and requires the lnb to be further west in order to receive it

so looking from the front of a dish where the lnb sits, into the curved rear , the lnb is pointed at hotbird at 13e and as astra is at 19e then the bouncing signal rule applies which means the astra lnb is positioned to the left and slightly higher up than the hotbird lnb in its final resting place in order to pick up signals from astra

so its about where the bounced signals end up in 3D space relative to the alignment lnb, not where they actually originate from

[bj1]

visit dishpointer.com to get elevation settings for hotbird line up dish to hotbird then looking from behind the dish raise the right side of monoblock to 2 oclock..ish....... fine tune by turning
lnb to position of highest signal quality...BJ1

[dick b]

with 13E as prime it should look like this.

[thered]

thanks for all the replies be a weekend job now but it starts with tuning hotbird first i gather and i heard a rumour that if i cover 19 up with tin foil it will be easier to set???

do i have to set diseq for a monoblock or will the receiver auto both satellites ??

ty

btw dont know what the box is

[bj1]

i dont know about the tin foil ....if you follow the steps shown
you should have no probs. and yes you do have to set your switch type to diseqc or on some boxes toneburst....BJ1

[ramjet]

thanks for all the replies be a weekend job now but it starts with tuning hotbird first i gather and i heard a rumour that if i cover 19 up with tin foil it will be easier to set???

do i have to set diseq for a monoblock or will the receiver auto both satellites ??

ty

btw dont know what the box is

dont need tinfoil , even a towel or similar will do it , and yes its better to deal with one at a time , starting with the prime focus lnb, then moving onto the second one

yes you have to set the box up , no its never auto

[bj1]

ramjet what do you need to cover one up for?

[mdt]

ive never needed to cover the secondary focus lnb feedhorn on the 20 or so mono-block systems ive installed.. regards mdt

[bj1]

what good would it do?

[ramjet]

seems simple enough to me , if you dont cover it up and you havent got the monoblock setup correctly on the diseqc you will focus the dish using the wrong lnb, as either lnb can be used for setting up, and if the wrong one was used the other would not pick up your second satellite

therefore a simple cover up of the astra lnb allows you to concentrate on getting the hotbird one lined up , and then you uncover the astra lnb and check it, fine tuning as necessary. it takes 2 seconds to cover it with a small towel, and 2 seconds to uncover it, so whats the problem here ?

buy hey , what do I know ? dont cover up the astra lnb at all and do it all your own ways, makes no difference to me what you do, some people are just too pedantic and seek to troll answers just to try and take the moral high ground , a forum should be about exchanging ideas, not one-upmanship

[bj1]

sorry if i upset you ramjet
i just thought there was something
i was missing out on.....

any helpfull tips are taken on board
.....BJ1

[shankill2012]

Sounds like a good tip to me, after setting my first monoblock up a matter of weeks ago and not covering 1 up I soon realised I had the satellite on the wrong lnb and had to go out and move the block further down the rail to get 13e and 19e, you could also put your hand over each lnb in turn and see if the signal dies .