10/02/2015 at 9:47 am #11861
Hi to you guys in Padova. Signal is extremely strong at the moment. Yesterday I measured the highest CNR ever with my 1m dish/Opticum Quad, reaching a midday high of 14,5 to 15,5 db and evening “low” of 12,0 to 13,5 db. As a comparison, evening low back in June/July was around 9 to 11db.
Pecorazza, I can’t explain the reasons for the present high but clearly even such a signal is inadequate to drive your receiver 24/7 via a 1m dish, so expect another blackout when the signal drops again (as it’s almost sure to do). BTW I have noted with my Humax that HD channels need a CNR about 1db higher than SD channels to maintain lock.
Steve, I’m not the expert but have read here that a feedhorn is needed with a 1,5m dish to maximize the signal – do you have one??10/02/2015 at 10:58 am #11863
I’m in the process of getting one, this means of course that I need also to get a new C120 lnb.
I’ve been reading this and other forums to choose the best possible combination feedhorn/LNB but I keep getting mixed and contradictory informations.
I can only afford the time and “man power” to dismantle my motorised dish once in order to change LNB so I must be sure I use the best one, I don’t have the luxury to try different setups.10/02/2015 at 11:19 am #11864
Steve in Munich has, I guess, tried all possible combinations with his 1,5m dish. Hope he reads this and can repeat the advice he has given in the past (but I don’t know where!!). If not, maybe you could send him a PM.10/02/2015 at 11:26 am #11865
Hi Derek – Thank you for the feedback. Me to, I am waiting to choose the best combination. I am pretty sure that a one meter dich is highly inadequate but on the other hand, I am neither sure that a 1,5 meter dish will do it, as the signal strength changes overtime. Some months ago I had 0% all day long….10/02/2015 at 3:34 pm #11867
@steve in Italy. Like Steve in Munich I have a 1.50 dish and have tried a fair number of LNB feedhorn combinations. Until recently the best was a homemade Inverto Black Ultra single C120 conversion with a Gibertini feedhorn, but like you I needed/wanted more outputs, so following the advice of Steve and others I went ahead and replaced it with an Invacom Quad. This is even better that the IBU – see http://robssatellitetv.com/topic/reception-reports-february-2015/#post-11860 for the comparison. I had my doubts about forking out for a relatively expensive bit of kit having had a rather disappointing experience with the Invacom single C120 + both Raven and Gibertini feedhorns (even the standard unconverted IBU single was far better). So, if you want to get the most out of your 150 dish the Invacom quad is definitely worth consideration IMO. Which feedhorn you use will depend on the FD of the dish – I have a Raven feedhorn I am about to put on eBay ….10/02/2015 at 5:42 pm #11868
Thank you for your imput, Invacom Quad it is then.
My last (nagging) doubt remains the size of the dish, is anybody getting a full day of service with this kind of setup on the same fringe area or do I also need a bigger dish (not really a possibility for me)?24/01/2016 at 1:37 pm #28257
Hi there! It’s been a while since I posted a message on the forum and it seems to be a while since anyone posted here.
I thought I might this year try and resolve the issue with the signal disappearing in the summer months which I believe is something to do with the curve of our plant. At the moment I have a 1m dish with a single lnb inverto ultra. The dish is about 15years old and I haven’t a clue what make it is. I have a humax foxsat hd1000s.
I’d like a few suggestions regarding:
- Dish size and make – my current dish is fixed on to a pole against a short wall on my apartment flat roof. If I get a 1.5m I think I’d need to screw it down to the floor wouldn’t I?
- Suitable LNB
- Decoder – should I get a new one that might be better wit weak signals?
During the winter I can get all BBC channels is HD and SD of c4 and itv, the aim is to get HD all year round even why it’s raining!
Thanks in advance for any help!
Nick26/01/2016 at 11:38 am #28266
Hopefully the “gang” will wake up from their Winter slumbers!!!
If you are talking of a 1.5M then it need serious grounding …. not something I would put on a roof unless it’s really solid …. mine sits on my garage roof, but the roof is serious concrete, with the dish bolted to the concrete and with heavy concrete slabs on the base.
LNB … just look at some of the tests, cheap doesn’t mean crap, they can be good .. but not Inverto they are crap for marginal signals.26/01/2016 at 11:50 am #28268
[quote=28266]but not Inverto they are crap for marginal signals.[/quote]
Im in Italy, considered ‘marginal’? …and my inverto is fine for me.
Not had signal problems for many months now (as has others), everything been firing on all cylinders.26/01/2016 at 12:59 pm #28274
Jim… The inverto BU single output LNB Â (what you have) Â is the only good one..!
….Twol is right ….the Inverto Quad ,Quattro ,c120 Pro..range Â of LNB’s are all very average/ nothing special or “ultra” about them ……we have both tested them and got similar results …….
Nick…..Go for the biggest dish possible……if you think a 150cm Â will be ok?….then maybe think about a 180cm! ……26/01/2016 at 1:14 pm #28276
Well I cannot but confirm, I have a quad inverto and my signal is somehow poor compared to others in my area, not that it was much better with the twin inverto mind you.26/01/2016 at 1:34 pm #28284
I can only repeat my huge disappointment with the Inverto range, they were not just average, but compared to some of the “cheapo’s” really bad value.26/01/2016 at 1:50 pm #28288
Opticum , Goobay, Maximum x1, Sharp, Alps ,Best Germany,and Invacom c120 LNB’s all performed better than Inverto BU and Pro c120 quattro LNB’s here !!!
But…..The Inverto “white tech” c120 flange was quite good tho….!…almost matches the (10 Euro !) standard Opticum Quattro Â 40mm LNB on some channels /frequencies…..21/02/2016 at 7:51 pm #28528
looks like things are starting to change… bbc1 hd disappeared a few hours ago and sd started to break up a lot21/02/2016 at 8:55 pm #28530
Nick, which BBC frequencies were those?21/02/2016 at 11:03 pm #28532
I’m using freesat so I don’t see the frequency its just channel 101.
Nick22/02/2016 at 8:47 am #28537
Hi Nick, my signal on ALL channels yesterday evening was a full 3,5db lower than 10 days ago. That’s a lot but must be said that Feb 14th level was very high and, yesterday, evening CNR range was 9,5 – 11,0 db. That’s more than enough for me but can imagine problems further out on the fringe. Also last year, signal dropped by 1,5/2,0 db in last 2 weeks of February.
PS: Nick, a month ago you were considering up-sizing your dish – presume you haven’t??22/02/2016 at 9:10 am #28539
My italian SD channels still standing and showing no problems. FWIW.
(Cue the signal breakup….!)
Dont forget the daily ‘sun outage’ season starts in 5 days (27th Feb about 10am): http://www.satellite-calculations.com/Satellite/suninterference.php
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