INTRODUCTION The Mobile Radio Test Set, TF 2950 has been designed as a fully transistorised, multipurpose unit capable of being driven from its own rechargeable batteries. The main application is for the testing, adjustment and servicing of mobile radio communications equipment operating in the VHF and UHF frequency bands. 1) An AM/FM signal generator covering the appropriate mobile radio VHF and UHF communications bands. 2) A modulation monitor for the measurement of amplitude modulation depths up to 80% and . peak frequency deviations up to +25 kHz. 3) An in-line power meter with a separate 15 W r . f . load. 4) An audio voltmeter having a sensitivity of 10 mV f. s . , an input impedance of 100 кй and a bandwidth of 20 kHz. 5) An audio oscillator with a nominal frequency of 1 kHz which is adjustable by up to +1% and an output level variable up to 3 V. 5) An audio oscillator with a nominal frequency of 1 kHz which is adjustable by up to +1% and an output level variable up to 3 V .