I was wondering if anyone here at RR has had any experience using the Antenna Specialists Monitor Preamplifiers that were manufactured/sold in the early 1970s. They operated on a standard 9-volt battery for mobile use or a 9-volt battery eliminator for base station use. The specs say they provided 20 dB of amplification and used Motorola connectors in/out (see attached JPEG ad from the May 1972 issue of S9 Magazine). There were 3 models that were made as follows:
MON-25 VHF-High 148-174 MHZ
MON-26 VHF-Low and VHF-High 30-50 MHz and 148-174 MHz
MON-28 UHF 450-470 MHz
Does anyone have one of these preamps still in use today? How is their performance compared to more modern/recent designs? Any feedback would be appreciated.
MON-25 VHF-High 148-174 MHZ
MON-26 VHF-Low and VHF-High 30-50 MHz and 148-174 MHz
MON-28 UHF 450-470 MHz
Does anyone have one of these preamps still in use today? How is their performance compared to more modern/recent designs? Any feedback would be appreciated.