Dr. Glaser. Well, we have quite a bit of space left there. We have studied the interaction between the satellites, and it is of some concern because of the shadowing that could occur if one doesn't put them in the right position. Senator Goldwater, When we talk about microwaves, what frequency are we talking about roughly—MHz? Dr. Glaser. We are talking about 2.45 GHz, for example. We have also investigated 3.3 GHz. The choice, to some extent, will depend on international agreements. It is very hard to get frequency assignments and many nations desire frequency assignments. Let's face it, if we have an assigned frequency, nobody else will compete with us. Senator Goldwater. Except that the GHz field isn't too crowded yet. The power that you get from microwave from the satellite, is that direct current or is it alternating? Dr. Glaser. It would be direct. In fact, it is very likely that in the future most of the high-power transmission will be high-voltage d.c. —rather than a.c. We will then convert the a.c. to d.c. near the point of use, which utilities already investigating on the west coast. Senator Goldwater. Mr. Chairman, I certainly hope that we can put money in the budget, even if it isn't there, for these purposes, because we are talking about the period of time 30 to 35 years from now when the Earth is going to have a lot more people on it and we are going to have a lot more people living here. I don't think we will ever build another falling-water electrical developing plant. I think nuclear development has its limitations. I don't think there is any limitation at all to what we can provide by satellite power. And I would hope that even though you don't see an immediate blossoming of money from the Federal sources, that- you just continue on with the work that you are doing. Some day we are going to wake up down here and realize that, as somebody said yesterday on the television—and he happened to be a candidate on the opposition ticket—that we are just beginning. And I believe that. I believe General Gavin is your chairman of the board. Dr. Glaser. That is right, sir. He has been a longtime supporter of this concept and has always supported my endeavors. Senator Goldwater. We were second lieutenants together, so if you will, give him my very best when you get back. Dr. Glaser. I certainly will, sir. Senator Goldwater. Tell him not to write me any letters about money, we will try to get it for him. [Laughter.] Senator Ford. Thank you very much, Senator and Dr. Glaser. We are very grateful to you, Dr. Glaser, for your fine presentation today and your unique ability to answer questions. And the reminiscing here will be in the record also. Thank you very much. Dr. Glaser. Thank you very much, sir. Senator Ford. The next witnesses will be Richard W. Taylor, vice president, Boeing Aerospace Co., and Ralph Nansen, space solar power systems, research and engineering division of Boeing Aerospace
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