QUOTE(zeone @ Apr 5 2012, 03:19 PM)
Re : "If your setting did not use "18 MEASAT 3A(VH)" setting, then you may have intermittent reception problems with ALL your HD channels."
Is 18 Measat 3A(VH) the BEST Settings for HD Channels??
My PVR is set to 1 Measat 3(VL) by Installer! The signal level is higher at 1 than at 18...

Before I answered in my earlier post to sniper69, I did ask my friend who is an authorised Astro installer about these group of settings. I will try to use simple explanations from what I am able to understand from this friend. I am NOT an expert in this.
"18 Measat 3A(VH)" is
NOT necessarily the best setting for HD channels reception and I
did not mention in my post that this is the best. Short answer, no... just keep your setting at No.1. My previous post was to answer Sniper69 post which you have mis-understood me.
I believe that you already knew that the satellites orbiting our earth's outer atmosphere have a life-span and does not last forever. I think that each satellite has about 15 to 20 years of "life" depending on how the on-board fuel is used to "push" the satellite back to proper orbit. The solar panel is used for supplying power to the satellite transponders and other equipment. There are a few thousand working satellites orbiting our earth presently. There are also many more thousands of debris and "rubbish" from unfallen dead satellites too.
Presently, we are using two satellites, named... MEASAT 3 and MESAT 3A. I don't know how long these two will last until its fuel is finished, go out-of-orbit and falls back to earth. New satellites will have to be launched when the time comes, maybe
MEASAT 4.
Ok... setting to one from No. 1 to 12 (VL) used one of twelve transponders from MEASAT 3 which have stronger transmission beam so its more suitable for weaker signal reception locations such as condos.
Setting to one from No. 13 to 18 (VH) used one of six transponders from MEASAT 3A which have weaker transmission beam so its more suitable for stronger signal reception locations.
I found out that there are some people who thought
wrongly that No.18 has the best signal reception for HD channels. It is not ! So some people with lower signal strength (such as in condo) was already set to use No.1 and some clever people changed the setting to No.18 which caused intermittent problems with their HD channels !
Sniper69 previously did not say his location so this was why I also asked in my previous post... "
Are you staying in a condo with shared dish which caused other number setting to be used ?"
Now I know that Sniper69 is not staying in a condo. BUT at the time before I know this... IF the original setting used in condo is No.1 and if he changed it to No.18, then there will be problems. This is also why I did mention... "DON'T change any setting if you are not sure or don't know what you are doing !".
This is why if No.1 was already set, I mentioned that changing to No.18 may have intermittent reception problems with ALL the HD channels.
Yes... you are correct that No.1 has stronger signal reception. The difference between No.1 to 18 may or may not be great depending on each person's location. For strong reception locations, you can use any number. For me... No.1 gave me average 240 signal strength and No.18 gave me average 220.
So if you feel No.1 is the best for you, then no problem to use it.If the signal strength is average 180 with setting No.1 used, then changing to No.18 will cause more problems.
There are many factors or causes which determine whether the signal quality and reception is strong or weak in any location such as a home or condo.
For location like mine in a 3 storey shophouse with cables that are not too long, my signal quality and reception is strong so there is no problem and small difference to choose
any one from 1 to 18. Whichever is chosen... I got a difference from average of 220 to 240 in signal strength.
» Click to show Spoiler - click again to hide... «
For people in condos with shared dish, they use a large dish connected to "Signal Distributor and Booster" units to split and send the signals to many long in-wall cables connected to each condo unit. Distributor units with 18KvH specification or the higher end 22KvH will determine the signal quality. The very very long cables from the distributor to each condo unit and whether RG6 cable type is used will also affect signal quality. I
think this is why condos do not use No.18

Sample picture of distributor/booster used in shared dish system (not same one used by Astro)...

I don't know how accurate it is and true or not, the following below are also more info that my friend told me...
He told me that the 12 transponders from MEASAT 3 used a stronger beam strength for people with weaker reception signal. If this is true, the weird thing is that I have read of unproven reports from some people who have better reception with No.13 to 18 and weaker reception with No.1 to 12 !! I stopped arguing with my kind friend for reports that could be false, hehe.
Each transponder can carry many TV channels and beamed to all the Astro subscribers. Of course has a limit but this also depends on what type of data is transmitted such as MPEG4 compression.
MEASAT 3 have a total of 64 transponders and MEASAT 3A also the same. That means a total of 128 transponders combined.
Presently, MEASAT company reserved 24 transponders to Astro for Satellite TV/Radio transmission (SD and HD). That means MEASAT 3 have fully used up the 12 reserved ones and MEASAT 3A (with 6 used) still have 6 "spare" ones which may already be partly used, such as for updates of decoder box software.
Lets do the maths... 128 - 24 = 104 transponders not for Astro Satellite TV subscribers. Aahh... the remaining 104 transponders are partly or maybe fully "rented / leased" to others for telecommunication use, to other Sat TV provider in other countries, and so forth.I do have a BIG question here ! I believe MEASAT is making fat cat profits which include transponders leases, Astro Sat TV services and include other profitable joint ventures... then why is it necessary to still continue MONOPOLY protection for over-the-air Satellite TV transmission ? Why the excuse to block out other Sat TV providers with the excuse of protecting the huge billion ringgit investment ? Isn't over 15 years already enough ? Isn't leasing 104 transponders to others helping to make huge profits ? Is it because our government want "some top people" to continue becoming even more richer ?
I am not talking about Cable TV or IPTV which used cables so its in a different category. Absolutely NO ONE can make me believe that fiber cables for Cable TV will be launched nationwide soon. In fact, I will be very stubborn and think that Cable TV will only be fully nationwide after year 2020 or may even stretch to 2050 !! For goodness sake... nationwide Cable TV / IPTV soon... will never come to my small town in Pahang !
As I have said before... I do support more Cable TV competitors to come in to support more locations which can poke Astro with some competition. Since Cable TV won't become nationwide soon, the
only serious competition to Astro is to have Satellite TV competitors come in for nationwide coverage now. I think there are 3 Satellite TV competitors in Indonesia. Please don't mix the Cable TV/IPTV together with the Satellite TV providers because Cable TV may never be nationwide !
This post has been edited by jamesleetech: Apr 5 2012, 09:49 PM