Specifications
- Function
- RF power (terminating)
- Measuring ranges
- 0.4–3 / 10 / 30 W
- Frequency range
- 25–500 MHz
- Accuracy
- ±(5% of reading + 5% of full scale)
- Input impedance
- 50 Ω; VSWR 1.1 (25–250 MHz), 1.25 (250–500 MHz)
- Display
- analogue meter
- Dimensions
- 182 × 215 × 219 mm (W × H × D)
- Weight
- 2.5 kg
Description
The E0408 is a terminal wattmeter, made by IEMI in Bucharest and designed at the ICE research institute [1].
ICE’s laboratory for electronic instruments for measuring electrical quantities designed all the institute’s generations of oscilloscopes, voltmeters, multimeters, signal generators, frequency meters, logic analysers, RLC bridges and stabilised AC power supplies; they went into production at IEMI or in ICE’s own microproduction workshop, and equipped industrial laboratories and production lines as well as teaching and research laboratories [1]. In the 1970s and 1980s about half of the components of measuring instruments were imported; after 1980 about three quarters were Romanian [1].
It measures RF power; IEMI made 298 units, 175 in 1984 and 123 in 1985 [2].
Annex III.2.8 describes it as a direct-reading instrument for RF power of up to 30 W from radio communication equipment, made up mainly of a 50 Ω resistive load and an analogue indicator, for 25–500 MHz [3].
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References
- [1]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, section II.4.1 „Laborator aparate electronice pentru măsurarea mărimilor electrice”, pp. 109–115
- [2]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, sections III.2 „Producția IEMI” and III.3 „Comentarii tehnico-economice”, pp. 302–317, and annex III.2.3 „Producția IEMI – aparate electronice de măsură și industriale”, pp. 383–386
- [3]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex III.2.8 „Voltmetre – multimetre – wattmetre”, pp. 618–627