11-18-97 REV. 10          BELDEN  89272 �F
I.   DESCRIPTION: 
     ----------- 
     #20 AWG STRANDED (7 X 28) TINNED, 2 CONDUCTOR TWINAXIAL 
     TRANSMISSION CABLE 
 II. ELECTRICAL CHARACTERISTICS: 
     -------------------------- 
     NOM. IMPEDANCE:                   78 OHMS 
     NOM. INDUCTANCE:                  .200 MICRO-H/FT. 
     NOM. CAPACITANCE 
     CONDUCTOR TO SHIELD:              18.4 PF/FT. 
     NOM. VELOCITY OF PROPAGATION:     69.5% 
     NOM. DELAY:                       1.46 NSEC/FT. 
     NOM. ATTENUATION: 
      MHZ       DB/100FT. 
        1           .6 
       10          2.1 
       50          5.0 
      100          7.5 
      200         11.0 
      400         16.0 
     NOM. SHIELD DC RESISTANCE:        3.9 OHMS/1000 FT. 
     NOM. CONDUCTOR DC RESISTANCE:     9.5 OHMS/1000 FT. 
     MAX. OPERATING VOLTAGE:           600 V RMS (NON UL) 
III. PHYSICAL CHARACTERISTICS: 
     ------------------------ 
     NOM. WEIGHT/1000 FT:              32 LBS. 
     MIN. BENDING RADIUS:              2.0" 
     TEMPERATURE RATING:               -70 TO +200 DEG.C 
     MAXIMUM PULLING TENSION:          68 LBS. 
     CONDUCTOR MATERIAL & DIA.:        20 AWG (7X28) T.C 
                                       .0375" NOM. 
     INSULATION MATERIAL & DIA:        FEP TEFLON* 
                                       .076" NOM. 
     SHIELD TYPE AND % COVERAGE:       T.C. BRAID, 93% 
     JACKET MATERIAL & DIA:            FEP TEFLON (BLUE TINT 
                                       .204" NOM. 
     COLOR CODE:                       CLEAR, BLUE 
     APPLICABLE SPECIFICATIONS:        UL TYPE CMP 
                                       CEC C(UL) CMP 
     * TEFLON - TRADEMARK OF DUPONT 
     USE:  SUITABLE FOR INDOOR AND OUTDOOR AERIAL OR DIRECT 
           BURIAL APPLICATIONS