My speciality. Овчинникова Т.Е - 44 стр.

       2.14.11 Answer the questions

1. What is essential when radars must operate in many modes simultaneously? 2. What
is another principal reason for going to electronic scan? 3. Where has electronic scan
been used successfully? 4. How can radars be transported? 5. What is needed for either
type of scanning? 6. What devices use ferrite elements in waveguides? 7. How can they
be switched?

       2.14.12 Translate the words into Russian

amplify, amplifier, amplification; oscillate, oscillation, oscillator; rectify, rectifier,
rectification; simultaneous, simultaneously; shift, shifter; require, requirement;
appear, appearance; saturate, saturation; direct, directly, direction; control, controller.

       2.14.13 Translate the sentences

1. We know electronic movement of the radar beam to be essential when the radar
must operate in many modes simultaneously. 2. Electronic scan is known to have
been used successfully in large ground radars. 3. Simpler lighter scanning systems to
be used on small ships, in aircraft have radars which may be transported even by men on
foot.

       2.14.14 Form the word-combinations

as far as         1) radars                  is concerned
                  2) electronic scan       are concerned
                  3) phase-phase scanning
                  4) better ferrite phase shifters
                  5) digital circuits
                  6) small phase-phase array

       2.15 Part 15

       2.15.1 Remember pronunciation of the following words

faithful, impose, distortion, blur, straight.



       2.15.2 Find antonyms, translate them

primary (winding) a, weak а, like adv, great a, directly adv, output n, above adv,
positive a, rise v, input n, fall v, negative a, secondary (winding) a, small a, strong a,
unlike adv, indirectly adv, below adv.