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How to find signal for MMDS
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BoxedOut
Newbie
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22. September 2008 @ 15:13 _ Link to this message    Send private message to this user   
I have got TheBox-T and a MMDS aerial with power downverter and I used a compass at a mates house a few miles away to see what way his is pointing and I'm pointing mine the same but how do I know if I'm getting signal, in the manual scan there is 2 bars with % will that indicate if I'm pointing the right way?
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satguy99
Junior Member
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23. September 2008 @ 05:00 _ Link to this message    Send private message to this user   
this method will not work, imagine you are in cork and i am in kerry and we both look north, we will not be looking at the same point in the distance will we,
BoxedOut
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23. September 2008 @ 15:31 _ Link to this message    Send private message to this user   
Ok well my mate s nearby and I found another house very near and I'm pointing it in the same direction but the signal stays on 0, I have the panaorma aerial with discs on it, if I am too low by 5 or 6 feet will I get 0 signal???
BoxedOut
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23. September 2008 @ 15:59 _ Link to this message    Send private message to this user   
Ok I went to a mates house and got within 5 feet of where his aerial is with my aerial and I didn't get any signal, my aerial is http://www.iwantabox.com/product_detail.php?pid=155&bnrid=74

Does anyone know what I could be doing wrong??? Is the aerial not suitable
satguy99
Junior Member
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23. September 2008 @ 16:28 _ Link to this message    Send private message to this user   
are you in a c*oru$ area or a NThell area
BoxedOut
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23. September 2008 @ 18:40 _ Link to this message    Send private message to this user   
Ch0ru$
mgb17
Senior Member
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23. September 2008 @ 18:47 _ Link to this message    Send private message to this user   
The aerial has a other downconverting frequency than a ch*rus thingy.
You should get the first valid frequency at 682 or 690mhz.
satguy99
Junior Member
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24. September 2008 @ 04:07 _ Link to this message    Send private message to this user   
c*oru$ down converters output at 214 to 400mhz but as you have a generic integrated aerial/ down converter the output will be different, that said as long as you are ligned up in line with your neigbours aerial and at at least the same height, remember do not go higher than your neighbour as your signal may get swamped by the local main transmitter or beam bender, try the manual scan and let us know how you get on.
Milner2k
Junior Member
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24. September 2008 @ 11:38 _ Link to this message    Send private message to this user   
Originally posted by BoxedOut:
Ok I went to a mates house and got within 5 feet of where his aerial is with my aerial and I didn't get any signal, my aerial is http://www.iwantabox.com/product_detail.php?pid=155&bnrid=74

Does anyone know what I could be doing wrong??? Is the aerial not suitable
aerial is fine, make sure its setup correctly for v or h polarization
BoxedOut
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24. September 2008 @ 12:54 _ Link to this message    Send private message to this user   
how do I change v and h ?
Milner2k
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24. September 2008 @ 14:36 _ Link to this message    Send private message to this user   
Originally posted by BoxedOut:
how do I change v and h ?
look at the back of the aerial, you'll see markings for V and H. Depending on whether your pointing at a main broadcasting site or a beam bender will depend on wheter you should have H or V pointing up.

Look at aerials around you, the bar in the center has a rectangle piece at the top, if thats horizontal then on the back of your aerial the H's arrow should be pointing up (sorry if this is hard to understand)

once you've the aerial level and pointing in the general direction, see if you can do a manual scan starting at around 682 (as said below) and keep going up in jumps of 8mhz until you come accross signal strenght/quality tuning in, then you just need to move the aerial around till you get the best signal
BoxedOut
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24. September 2008 @ 17:00 _ Link to this message    Send private message to this user   
Ok the penny has dropped now, I need to a manual scan with my aerial as it won't pick up anything on auto scan.

If I can't get this to work I was told an aerial with a downconvter of 222-408 will work better and I will be able to autoscan.

I'll try manual scan tomorrow evening and report back, thanks a million for all the help so far
bosco2909
Newbie
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8. October 2008 @ 14:59 _ Link to this message    Send private message to this user   
Hi BoxedOut, I also have TheBox-T and a MMDS aerial with power downverter (same aerial as you) and I have the same problem as you, I can not get a signal at all, I know TheBox-T works because I have tried it on a current ChXXXs user and it works fine.

Have you had any joy setting it up ??
glog
Junior Member
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13. October 2008 @ 20:59 _ Link to this message    Send private message to this user   
Bosco2909,
Interested to see if you got your kit working ?
I plan to do similar install in next week or so.

Any hints/advice/pitfalls you know of ?

Thanks in advance,
gLog
bosco2909
Newbie
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14. October 2008 @ 13:46 _ Link to this message    Send private message to this user   
Hey glog, got it going alright last week, works perfectly ... done a manual scan starting at 682, added 8 each time and done another manual scan, ie at 690, 698, 706, etc.. I also went down from 682 in jumps of 8 and it picked up a few more channel. I then followed the rest of the instructions with the box and it worked perfectly.

Lining up the aerial is no big deal either, does not have to be exact, once its pointing in the general direction it woks fine.

good luck !!
glog
Junior Member
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14. October 2008 @ 15:30 _ Link to this message    Send private message to this user   
Hi Bosco,
Thanks for that.Gives me some confidence.

Couple of further questions:

- During the initial set up of the aerial is there some way of
of scanning the box/TV to quickly home in on the rough positioning of the aerial ?

-After a rough positioning is attained is there some way on Box to fine tune or tweak to get optimum signal ?

Thanks very much in advance
gLog
bosco2909
Newbie
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15. October 2008 @ 13:58 _ Link to this message    Send private message to this user   
Yes, if you go in to the manual scan menu and select the correct freq to scan the box displays signal strenght and quality, you can also use this to fine tune if you like ... I have a direct line of sight to the transmitter and it works perfectly, pointing the antenna in the general direction of the antenna picks up a sufficient signal, you should have no issues once you are scanning the correct frequencies.
glog
Junior Member
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15. October 2008 @ 18:57 _ Link to this message    Send private message to this user   
Thanks Bosco
irishman7
Newbie
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17. October 2008 @ 06:59 _ Link to this message    Send private message to this user   
Have been following this thread is this option available in Roscommon area
glic83
Member

2 product reviews
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21. October 2008 @ 05:46 _ Link to this message    Send private message to this user   
it all depends who your cable provider is if its chorus then yes its available if its ntl than provide then you will need a c tunner as ntl mmds uses c, chorus mmds uses t,but as far as i know its chorus where you are mate
irishman7
Newbie
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18. November 2008 @ 08:46 _ Link to this message    Send private message to this user   
Hope someone can help find choru$ signal in Roscommon. Have digivox-t and mmds aerial with integrated downconverter from satellitetv.ie but cannot recieve signal. I think I'm pointing in correct direction but even with alot of work cannot recieve any signal is there anyone that can help with transmitter locations
mgb17
Senior Member
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18. November 2008 @ 12:08 _ Link to this message    Send private message to this user   
The first valid frequency should be 682mhz or 690mhz.
If you use that frequencies you should see bars for signal strength/quality.
satguy99
Junior Member
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18. November 2008 @ 12:40 _ Link to this message    Send private message to this user   
Originally posted by irishman7:
Hope someone can help find choru$ signal in Roscommon. Have digivox-t and mmds aerial with integrated downconverter from satellitetv.ie but cannot recieve signal. I think I'm pointing in correct direction but even with alot of work cannot recieve any signal is there anyone that can help with transmitter locations
your down converter has a range of 214mhz to 400mhz the symbol rate for N*L is 6.887 and the gap is 8mhz ,,are you sure the carrier in your area is cH0RU$ , i thought i was N*L ??? IF it is Ch0ru$ hen the symbol rate is 6.875 and the range is still 214 to 400 mhz
mgb17
Senior Member
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18. November 2008 @ 12:53 _ Link to this message    Send private message to this user   
The downconverters sold from satandcable have if662 (lo1838).
2500 minus 1838 give 662. First centre frequency is therefor 666 and first valid frequency 682 for frequency scheme A. The first 2 transponders are not in use for digital.

This message has been edited since posting. Last time this message was edited on 18. November 2008 @ 12:57

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irishman7
Newbie
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19. November 2008 @ 05:40 _ Link to this message    Send private message to this user   
Thaks guys for the quick responce I have verified my box on a mates aerial so my problem is definitly aerial setup. I'm confident that my cables & conections power is ok what kind of equipement could i use to locate signal and allign aerial correctly. Would a spectrum anyliser work. Also on my downconverter there are 3 sets of mounting holes which one would be best for my setup or there a specific distance from converter to mesh picture of downconverter below
http://www.satellitetv.ie/shop/index.php...&product_id=158
 
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