Measurement of losses or gains in telephone circuits and equipments
Operating Test Capability
Signal generator, fixed frequency 500, 100, 2500 cycles porm 50 cycles, output minus 40 dbm, minus 20 dbm, 0 dbm into 600 ohm load unmodulated; receiving amplifier, measures power from 600 ohms source between minus 50 dbm and plus 15 dbm in steps of 0.5 db over frequency range of 100 to 10000 cps
