Data transmission rates available include 2.4 kbits/s, 9.6 kbit/s, and 64 kbits/s with an onboard storage capacity of 8 Mbytes. A handheld user terminal (UT-P) resembles a cellular phone and weighs only 1-3 kg. Two demonstration Gonets (Gonets D) satellites were included in the Kosmos 2197-2202 mission (specifically, Kosmos 2199 and Kosmos 2201) and were tested successfully during 1992. Three additional Gonets D spacecraft were scheduled for launch in 1993, but did not appear. The first generation Gonets system, if deployed, may be followed by an advanced Gonets-R design equipped with satellite-to-satellite links. Gonets R may employ larger, 950-kg spacecraft in even greater numbers (45) and operate at L- and Ku-bands (References 257-263).
257. Izvestiva, 31 May 1991, p. 6; 21 December 1991, p. 9; and 28 December 1992, p. 3.
258. Gonets technical brochures issued by Applied Mechanics NPO and Precision Instruments NPO, 1991-1992.
259. Aviatsiya I Kosmonavtika, April 1993, pp. 13-15.
260. Skipped in book.
261. Y.G. Milov and Y.V. Zonov, "Perspectives of Satellite Communication Development in Russia", Paper IAF-93-M.1.308, 44th Congress of the International Astronautical Federation, 16-22 October 1993.
262. Vestnik Svyazi, 11 November 1994, pp. 6-10.
263. Y. Gorriostayev, et al, Proceedings of the International Conference on Satellite Communications, ICSC '94, 18-21 October 1994, Vol.I, pp. 31-34; Vol.II, pp.113-118.