Section IV. RF CABLES AND WAVE GUIDES

TM 750-245-4

Section IV. RF CABLES AND WAVE GUIDES

surface can effect the electrical characteristics and

3-14. General

make the part unserviceable. Flexible wave guides

The inspection of rf cables and wave guides is of the

should be handled carefully to prevent bending beyond

utmost importance.

The inspector should become

the required limit. Final inspection of wave guides

familiar with the complete repair procedures of rf cables

should accomplish the following.

before he can properly inspect. The repair of wave

guides is restricted and usually requires only inspection

a. Rigid Wave Guides. Dimensions are critical.

and cleaning.

Inspect the interior as well as the exterior surfaces for

dents, corrosion, dirt or moisture. Do not handle interior,

3-15. RF Cables

as moisture from the skin may deposit acid on the

The inspector should perform in-process inspections of

surface which will cause corrosion. If surfaces are found

rf cable repairs. Figures 3-29 through 3-32 are included

to be satisfactory, cover the wave guide opening with a

to show proper repair procedures. During a final

moisture proof cover and store in a safe, dry place.

inspection the inspector can remove the locknut or

b. Flexible Wave Guides. Handle carefully during

clamp nut securing the connector body. He can then

inspection. Do not bend beyond usual extension. Do

remove the body and determine if the repair has been

not twist. Inspect interior surfaces for chips, dents,

done properly.

corrosion, dirt, or moisture.

Examine the exterior

surfaces for blisters, tears, cracks, or any areas of

3-16. Wave Guides

nonadherence to the jacket. Cover open area with a

Wave guides are fabricated of tubular or rectangular

moisture proof cover and place in a safe, dry area in a

metal. Dimensions are critical. Damage to the interior

relaxed position.

3-13