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Cable Number RG-178B/U RG-188A/U RG-316/U RG-179B/U RG-174A/U NA(RG316DS)
M17 Number M17/93-RG178 M17/138-0001 M17/113-G316 M17/94-RG179 M17/119-G174 M17/152-00001
 DIMENSIONS(mm)
Center Conductor  0.30 0.51 0.51 0.30 0.48 0.51
Dielectric  0.84 1.52 1.52 1.60 1.52 1.52
Outer Conductor  1.37 2.06 2.06 2.13 2.24 2.44
Jacket  1.80 2.49 2.49 2.54 2.79 2.90
 MATERIAL
Center Conductor  Silver-Coated
Annealed
Copper-
Covered Steel
Silver-Coated
Annealed
Copper-
Covered Steel
Silver-Coated
Annealed
Copper-
Covered Steel
Silver-Coated
Copper-
Covered Steel
Copper-
Covered Steel
Silver-Coated
 Annealed
Copper-
Covered Steel
Dielectric  PTFE Type F-1 PTFE Type F-1 PTFE Type F-1 PTFE Type F-1 PE Type A-1 PE Type F-1
Outer Conductor  ilver-Coated
 Copper WIre
Silver-Coated
 Copper WIre
Silver-Coated
 Copper WIre
Silver-Coated
 Copper WIre
Tinned Copper
 WIre
Silver-Coated
 Copper WIre
Jacket  FEP Type IX PFA FEP Type IX FEP Type IX PVC Type IIA FEP Type IX
 CABLE
 CONSTRUCTION
Center Conductor  7 Strands of
 0.0040
7 Strands of
 0.0067
7 Strands of
 0.0067
7 Strands of
 0.0004
7 Strands of
 0.0063
7 Strands of
 0.0067
Dielectric  Solid Solid Solid Solid Solid Solid
Outer Conductor  Single-Braid of Single-Braid of Single-Braid of Single-Braid of Single-Braid of Double-Braid of
  AWG 38 AWG 38 AWG 38 AWG 38 AWG 38 AWG 38
 WEIGHT
 (Max. Kg/100 m)
0.92 1.8 1.8 1.59 1.4 2.73
 TEMPERATURE
 RATINGS
(Min. to Max., )  -55 to +200 -55 to +200 -55 to +200 -55 to +200 -40 to +85 -55 to +200
 FREQUENCY
 (Max. )
3.0 3.0 3.0 1.0 1.0 3.0
 ATTENUATION
 (dB/100 ft)
Frequency() 400  27.5 21 20 16.0 17.5 20
1000  45 38 30 24.0 31 30
3000  78 58 58 - - 58
5000  - - - - - -
10000  - - - - - -
 POWER HANDLING
 (Watts)
Frequency() 400  123 220 240 420 25 240
1000  78 130 160 260 16 160
3000  41 78 80 - - -
5000  - - - - - -
10000  - - - - - -
 VSWR (Max)
Frequency() 500  1.2 1.16 1.15 1.16 1.22 1.1
1000  1.25 1.2 1.2 1.2 - 1.22
3000  1.5 1.33 1.33  - - 1.22
10000  - - - - - 1.38
 VOLTAGE RATING
 (Volts RMS)
Continuous Working 
Voltage (Max) 
750 900 900 900 110 900
Voltage Withstanding 
(+10%-0%) 
2000 2000 2000 2000 2000 2000
Corona Extinction 
Voltage (Min) 
1200 1200 1200 1200 1500 1200
 CHARACTERISTIC
Impedance(Ohms)  50 50 50 75 50 50
 MINIMUM INSIDE
 BEND
(Radius, In.)  - - - - - -
 VELOCITY OF
 PROPAGATION
(Nom., %)  69.5 69.5 69.5 69.5 66 69.5
 SHIELDING
 EFFICENCY, dB/ft
40 40 40 40 40 60