Xref: utzoo rec.ham-radio:5283 sci.electronics:3235 Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!necntc!rayssd!raybed2!ewb From: ewb@raybed2.UUCP (EUGENE BALINSKI) Newsgroups: rec.ham-radio,sci.electronics Subject: More Mods for the PRO 2004 !! Keywords: More Fun, TURBO, S Meter Message-ID: <1193@raybed2.UUCP> Date: 7 Jul 88 18:29:59 GMT Organization: Raytheon Co., Bedford, Mass. Lines: 38 From Monitoring Times July 88 Volume7 number 7, Page 93 That's right folks, more mods for the '2004. Remember these mods are done at your own risk. Have fun. In a previous posting the question of enabling 520 to 760 MHz came up. Apparently this info was false. It cannot be done. (at least at this writing) But adding an "S" meter is even easier than previously thought. Pin 10 on the IF amplifier is an "S" meter output. With the proper bridge or meter buffer/amplifier an "S" meter is reality. But wait, there's more !! Turbo scan for the 2004 ??? Yes !! Someone has realized that if you replace the present 7.37 MHz ceramic resonator CX501, with a 10.7 MHz ceramic resonator it really boosts the scan/search speed! The present resonator is soldered between pins 29 and 30 of the CPU (IC-503). Rumor has it that a 10.00 MHz computer xtal will work just fine. Note the effect of the speed mod on weak signal performance is presently unknown. Hopefully someone can/will verify that these mods work. (Bob Parnass where are you ???) Good Listening. 73 Gene Balinski WA1UXAP.S. Be sure to UNPLUG the radio before OPENING the case !!!! P.S.P.S. For further info see Monitoring Times Mag. I strongly suggest that you subscribe to this mag and read the article on the mods. Monitoring Times Magazine P.O Box 98 Brasstown, N.C. 28902 PH 704-837-9200