R.F. Burns said:You and others claim Ibiquity is a ruthless company. If so how did they get Harris, Nautel and others to back their technology by selling transmitters compatible with this system? Forgive my ignorance but it sounds as though you have had some negative experience with Ibiquity. Not wanting to pry into your personal business but what is it you know that you can share with us that will prove the Ibiquity is somehow operating on the fringes of the law by operating in a shady manner.
Harris, Nautel, Continental and others are in the business of making transmitters. They will build whatever the market demands. I’ll bet they’d be happy to build a Wi-Max transmitter if you are willing to pay them. In fact, a lot of their production is for non-broadcast equipment that can benefit from their manufacturing capabilities and expertise. Why wouldn't they make HD transmitters if someone was willing to buy them?
As for some of your other questions, they would best be answered by looking back at some previous posts. Most of this has been discussed over and over. My own personal qualms about HD revolve around the discovery that it appears to be fairly useless technology for small broadcasters. Even among the "HD converted," there is reasonably good consensus that it will be bad news for small AM broadcasters. It also makes very little sense for small FM stations and translators. The side bands from full power HD stations are likely to cause interference to these smaller broadcasters, especially in currently existing short spaced conditions.
Further, there seems to be a point of diminishing returns where a HD signal is not viable. Since the HD carrier is 1/100 of your analog ERP, a 250 watt translator would have a 2 1/2 watt ERP HD signal. It is unclear how far that would go, but it is fairly certain that building penetration would be a big problem at that kind of power level. I doubt you’d get much over 3-4 miles out of it under good conditions. Maybe a lot less. It simply wouldn’t be worth the expense.
There are thousands of FM stations that are fairly low power, as well as nearly 1000 LPFM stations and thousands of translators that run with power levels way under 250 watts. What about them? If NAB has their way, there will be a lot more. The HD proponents say "Those are secondary services and if they are no longer viable, well, that is too bad." They also say the AM band needs "thinning out." That's nice, but you'd be less than pleased if you were on the endangered species list. I hate walking around with a target on my chest.
IBOC seems like a great idea for 25-100 kW FM stations, as well as 50,000 watt AM stations. The technology works for them. It's the little guy who has the problem. I happen to be one of those "little guys." I have no problem with the concept of Digital Radio. In some form, it probably is our future, but I'd like to adopt a system that works for everyone. Until that comes along, I see no urgency in a digital conversion. The general public has no problem with the current analog methods of delivering a signal. In fact, they could care less how they get the signal. They only care if there is something worth listening to or not.
That's the Cliff's notes of where I stand.