While a rampant Japan Surplus in an ordinary public places have often tuned to Channel 7 at all TV sets causing an interference of legitimate Mega Manila Household TV Meter System, as well as the trend of controversial claim of intent rising growth of audiences in Mega Manila People TV Meter System started in 2010 not only in households but also outside household TV viewing in establishments and public transport, I already thought about the advantage of strong analog terrestrial TV signal of Channel 7 of GMA Network even with (a cheap indoor) or without (indoor or outdoor) TV antenna for ordinary household and public places, compared to other analog terrestria TV channels that require only outdoor antenna in order to pick up signal even at far distances due to limited power signal transmission. Although Channel 7 have often generate crystal clear video detail in 525-line (480i) NTSC format, it often encounter multipath signal such as “ghosts” due to obstructions in buildings and “fuzz-out” video signal when the vehicle, such as bus unit, is moving due to Doppler effect referring between analog TV transmission and reception.
And while ABS-CBN, GEM TV, and NBN have already purchased HDTV broadcast equipment, GMA Network may not yet ready to broadcast HD format due to constraints of their financial needs in order to buy new equipment, but it may be still opt to broadcast SD format momentarily for the next few years even for the recent adoption of ISDB-T based digital terrestrial television (DTT) in Philippine shores this mid-2011. (The Japan-based ISDB DTT system–compared to ATSC and DVB-T–has greater advantage to receive both fixed and mobile digital transmission without jamming out DTV signal called “garbage” in video.)
And aside from datacasting and Emergency Warning Broadcast (EWB) as an important feature of ISDB-T that is now mandatory according to the nearly completed Implementing Rules and Regulation (IRR) from National Telecommunications Comission (NTC) by June 2011, the Japan-based DTT system may accomodate five subchannels per 6 MHz carrier TV channel, not only in current DTT broadcast such as GEM TV and NBN as well as ABS-CBN and ABC-5 coming soon but GMA-7 should also include to broadcast digitally away from power-hungry analog TV transmission power in order to accomodate two affiliated analog TV channels (GMA-7 and GMA News TV) as well as the (1) possible revival of QTV and (2) introduction of radio TV channels DZBB and DWLS in the future, almost free viewing at all!
By the way, I would rather wish to suggest for consent that GMA-7 may focus first to purchase a fairly cheap ISDB-T DTT transmitting amplifier supporting both SD and HD DTV signal and then install a DTV transmitting antenna prototype such as Jampro below a current analog TV transmitting antenna at various GMA-7 TV tower facility in Metro Manila and provincial stations. In spite of taller TV tower structure that would be dangerous to humans if exposed of producing a harmful gigahertz (GHz) electromagnetic RF microwave signal used in cellphones and satellite just as possibly true to the use of UHF RF signal (470 MHz to 890 MHz), it is important to limit DTV transmission power by 1% of current analog TV transmission in order to save electrical consumption, as well as designating a lower TV channel value such as a rumored Channel 27.
And for most loyal televiewers who hate to buy ABS-CBN based DTT unit whether tuner box or handheld, they may prefer to other unit that can access only freeviewing DTV channels such as GEM and NBN, including ABS-CBN, ABC-5, and GMA-7 broadcasting soon. They should also forget to use analog TV giving a way for a full shift to freeviewing DTT because of advantages of picture clarity without multipath video reception.
If GMA-7 would promise to adopt freeviewing DTT broadcast for its loyal televiewers around Mega Manila, expect that the network would increase about 20% to 30% of available TV audience over entire future GMA-7 TV shows per day in People TV Meter system by 3rd quarter of 2011 to 2012 only if they would use both handheld and “tuner box” DTT devices, according to my own forecast.