Hi Kiwi8,
Wrong thread to post your question on indo chan frequencies.
The answer is in this thread (post #1708).
You mean post #1706 ?
Hi Kiwi8,
Wrong thread to post your question on indo chan frequencies.
The answer is in this thread (post #1708).
This is a departure from my normal practice of only commenting on specific technical issues.
The writer mentioned some of things he heard from a reliable source, which for obvious reason cannot be revealed.
I would like to discuss about the reliability of info from reliable sources in general terms, assuming that there was perfect communication between the writer and the source.
Those who work in large organisations will know there is a hierarchy in the form of a pyramid. Each person/layer in the hieracky knows his area of responsibility/work well if he remains in the same position long enough. Thus technical people in operations know their work well but usually do not know company policies and the rationale, some of which may have sensitive info, if these are not communicated to them. On the other hand people at the top will not know exactly the technical intricacy of their operations.
It is also known that people come and go, including the top men. Attrition, job rotation, promotion and so on. For a company with a long history, it is indeed hard to find one who knows everything about the company as it evolves with time.
For HDB matv, it has a history of more than 40 years. Those in the pioneer generation and have long memory will recall the forest of antennae sticking out of roof tops and common corridors, in places such as Tanglin Halt, Bukit Merah, Taman Jurong and so on.
To help improve tv receptions in the early days, which only had chans 3, 5, 8 an 10 then, HDB implemented matv. Initially 300 ohm ribbon cables were used as down lead. Some of the tv outlets used short length of twin flexible cable (as used for lighting cable) as capacitors. As technology improves, number of tv stations increased and extended to UHF band, the matv specs were continuously upgraded. This is in line with the improvements made to HDB flats in general - lifts, building materials, technologies etc.
Rewirings were carried out for old systems when they were due. This brings them up to the prevailing standard at that point of time. Rewirings were done by Town Councils during the period when they were in charge of matv. MATV in older blocks may in fact have newer systems than newer blocks
As of today, there are about 10,000 blocks of HDB flat. To simplify HDB matv to a few models is like saying sizes S, M and L will fit the body of everyone.
All the above comments I made are based on public info, and from work and life experience, my own reliable source.
Finally, just to quote a real example of an info I got from a reliable source. I was once told that a coming MRT line will have a station with entrance/exit right next to our condo entrance/exit, citing the sighting of plans even. When public announcement was made, the station entrance/exit was found to be in a different location.
Still, there are positives about such chatters. If the authorities monitor well, these may help to improve their communication to the public and may also help to fine tune their policies.
No typo here. Just a different way to let him know that he has seen it beforeYou mean post #1706 ?
No typo here. Just a different way to let him know that he has seen it before
Not a problem. Think know you better by nowIndeed I forgot what I posted a few days ago.
Sorry for the inconvenience caused by my amnesia.
This is going to be a challenge for the implementer - how to enable signals to penetrate the thick reinforced wall of the household shelter. In times of needs communcations still need to be maintained with the outside world.
Household Shelter
General
The household shelter in your HDB flat is designed and constructed to serve also as a civil defence shelter in times of emergency. They are specially designed and well-prepared to protect you and your loved ones in an emergency. The household shelter has strengthened walls, floor and ceiling and a steel door.
Like the other structural components of the flat, the following cannot be hacked or drilled during any renovation:
- Reinforced walls
- Reinforced floor slab
- Ceiling
- Steel door
Certain finishes and fixtures are not permitted as they are not easily removable before an emergency. These may instead become hazards when you have to occupy the shelter during an emergency. Lighting, power point, telephone point and MATV outlet are also provided within the shelter. These are provided for you to communicate with the outside world.
Quote from MDA:
There is no need to (excluded landed property):
1.) Share an Antenna
2.) Separately cabled all your rooms with the MATV points
You only need to search for a fixed power point!
Indoor coverage (99.9%?) already reached BB, AMK & JE, so if you are already living in these areas, you just need an INDOOR UHF antenna.
1.) There is no need to place the antenna near or outside the windows
2.) Very likely there is no need for a powered antenna, a passive antenna will do.
As long as your room has a window, never mind whether it is opened or closed, your indoor antenna can be positioned conveniently anywhere inside the room.
You may also watch TV in the toilet, but there is no guarantee if it is possible in your store room, and definitely not inside the bomb shelter
For those living in areas where indoor coverage has yet to be rolled-out, you need to be patient. In the near future, if you are lucky, you may notice that a Mediacorp transmitter has just been installed on a building just next door.
In general, indoor signals will get stronger & better once the roll-out reaches your areas.
few questions to ask since it has been a while since i visited this thread.
1. Any idea about the coverage in cck/yew tee area?
2. Even though the digital signal coverage is good to the extend that there is no need to place the antenna near the windows, we still need 2 antenna for 2 tv at 2 different rooms right?
3. Are there any models recommended for indoor antennas? From what I read so far, it seems that the DAIYO EU1702 indoor antenna is recommended. I assume if the antenna is able to receive digital signal it should be able to receive the analogue signal as well right?
4. Will the older models of indoor antenna meant for analogue be able to receive digital signal? I am guessing probably no, but the fact that some MATV antenna are able to receive digital signal confuses me on this part.
TIA
You have raised interesting and pertinent points. On paper, the list of provisions in the household shelter (HS) for emergency use sounds impressive. But if one probe deeper, then one may find that the picture may not be so pretty.Actually.....
Quote from HDB website (see last para):
I believe (I cannot confirm as I do not have a shelter in my flat):
The MATV points (including the electrical and telephone points) should come from dedicated trunkings that are also protected within the reinforced structure.(?)
Whatever the case, HDB should continue to maintain such infrastructure, and not forgetting the MATV systems which is the last line for emergency notification when all things fails.
.....
Electricity supply for a block comes from the switch room at the ground floor. Similarly telephone wiring orginates from the MDF room. These rooms and wirings are not protected against explosion damage. When the switch room is damaged, electricity for the block fails and everything that operates on electricity stops working. So even if the matv is not damaged, or if dvb-t2 signal is able to penetrate the wall, the tv has no electricity supply to work on.
Ever entered into a lift while communicating with your mobile, and suddenly when the door of the lift closed, you are cut off......
That's why the question of whether G3/G4 work in HS is important and I hope someone can answer the question. Unless the base station suffers a direct hit, it will continue to work without electricity for some time since it has backup batteries.
.....
I will try to answer your questions in seperate postings.....few questions to ask since it has been a while since i visited this thread.
1. Any idea about the coverage in cck/yew tee area?
2. Even though the digital signal coverage is good to the extend that there is no need to place the antenna near the windows, we still need 2 antenna for 2 tv at 2 different rooms right?
3. Are there any models recommended for indoor antennas? From what I read so far, it seems that the DAIYO EU1702 indoor antenna is recommended. I assume if the antenna is able to receive digital signal it should be able to receive the analogue signal as well right?
4. Will the older models of indoor antenna meant for analogue be able to receive digital signal? I am guessing probably no, but the fact that some MATV antenna are able to receive digital signal confuses me on this part.
TIA
In the majority of cases, yes. But there are exceptions, as I have exerienced, depending on ambient signal strenght and location of lifts. New lifts installed in HDB under the Lift Upgrading Programme are mostly located away from the main building. The lift shafts are of cost saving materials that do not offer as much shielding as those constructed in the block. Faraday's cage should work but in reality is not always 100% (there are openings for lights and ventilation fans in the ceiling).Ever entered into a lift while communicating with your mobile, and suddenly when the door of the lift closed, you are cut off.
Tia gong according to Wikipedia itself, Channel NewsAsia is also on DVB-T2 Channel 27, UHF 522MHz, LCN 06, Channel U, UHF 522MHz, LCN 07, OKTO, Channel 27 UHF 522MHz, LCN 10 using 16:9 scale.
LATEST UPDATE
Malaysia RTM TV1 and TV2 are using HDTV on SingTel MioTV from 31 March 2014 Channel 612/12 on RTM TV2 HD and Channel 611/11 on RTM TV1 HD
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1. Any idea about the coverage in cck/yew tee area?
.....
TIA
Yes. 1 indoor antenna per digital receiver is recommended....
2. Even though the digital signal coverage is good to the extend that there is no need to place the antenna near the windows, we still need 2 antenna for 2 tv at 2 different rooms right?
TIA
Whatever it is, my condo matv and hdb's carry analogue TV2. No issue.... RTM TV2 is not allowed to air in Singapore due to copyrights.