As pointed out by earlier posts.. it is a UHF EXEC II 450-470 Synthesized TX and RX, DUPLEX RCC Mobile telephone chassis. Circa 1980-85 ish. Approx 35 watts into the duplexer, 25 out. The RCC version was RX on 454.025 and 11 steps up from there on 25 khz centers.. paired 5 mhz offset for TX
We had a bunch of them. As RCC phones they were normally paired with Secode or Glenayre Control units of various signaling formats over time.. In the days of the EXEC II synthesized unit it was probably SMART SECODE signaling .. a parallel but similarly automated technology like IMTS which was the Bell system equivalent. Like any other Exec II YS55 is the family and power level . SSXX means synthesized ( it not channel limited per-se) range 88 was the UHF 450-470 split.. Channel selection was in Binary. not ground per channel like most Exec II's..although the binary was grounds.. It is most definitely not designed as a repeater.but it was duplex.. There were 2 channel block in those bands for such. one was assigned to TELCO's only ( all the Bell's at that time) and the other block was for private operators ( now generally referred to as CMRS ) that were RADIO COMMON CARRIERS or RCC's for short.. VHF and UHF versions of duplex Exec II's can be found. as they were used by both Bell System and RCC"S.. I probably have a manual around in the archives somewhere.. Doug KD8B I'm sure Harris in Lynchburg VA will have that combination breakdown. They purchased MACOM, previously purchased Ericcson, GE, etc... Gentlemen (And Ladies) I have a MASTR II Exec mobile here, I think its a UHF Repeater. I want to confirm with you - but I am curious what RCC stands for. Comb number YS55SSXX88A. Nothing comes up on Google and not sure which Comb spec sheet to look this up with Hall Electronics or here on RB Archives. Thanks for your input! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn
