Cables Technical Data

Coaxial Cables Attenuation and
Power Rating Chart

Attenuation & Power Rating Coax Chart Nominal Attenuation & Average Input Power in Watts at Frequencies (Mhz)
dB LOSS per 100 FEET
COAX	30MHz/PWR	50MHz/PWR	150MHz/PWR	220MHz/PWR	450MHz/PWR	900MHz/PWR
9913FX	0.8.....2200	0.9.....1700	1.6.....1000	1.8.....830	2.8.....550	4.2.....380
LMR400UF	0.8.....2100	1.0.....1700	1.7.....1000	2.1.....830	3.1.....550	4.7.....380
LMR400	0.7.....2100	0.9.....1700	1.5.....1000	1.8.....830	2.5.....550	3.9.....380
LMR600	0.421.....3100	0.547.....2400	0.964.....1400	1.18.....1100	1.72.....770	2.5.....530
LMR600DB	0.421.....3100	0.547.....2400	0.964.....1400	1.18.....1100	1.72.....770	2.5.....530
LMR600UF	0.500.....3100	0660.....2400	1.2.....1400	1.4.....1100	2.1.....770	3.0.....530
FSJ150A	0.980.....2280	1.27.....1760	2.23.....1000	2.60.....860	3.93.....567	5.66.....395
FSJ450B	0.561.....5750	.0730.....4420	1.29.....2490	1.51.....2100	2.32.....1380	3.40.....947
LDF250	0.567.....4140	0.736.....3190	1.30.....1810	1.51.....1500	2.30.....1002	3.34.....704
LDF450A	0.369.....6310	0.479....4850	0.845....2750	0.985.....2300	1.51.....1530	2.20.....1005
LDF550A	0.197.....14000	0.257.....10700	0.458.....6004	0.536....5150	0.834.....3320	1.23.....2250
18267 RG213/U	1.2.....1800	1.6.....1300	2.8....620	3.5.....520	5.2.....300	8.0.....200
18214 RG8/U Foam	0.9.....1350	1.2.....975	2.3.....475	2.9.....390	4.7.....225	6.7....150
19258B RG8x-Mini	2.0.....875	2.5.....500	4.7.....310	6.0.....255	8.6.....150	12.8.....100
LMR240UF	1.5.....980	1.9.....750	3.5.....420	4.3.....340	6.1....240	9.1.....170
LMR240	1.3.....980	1.7.....750	3.0.....420	3.7....340	5.3....240	7.6.....170
18240 RG58/U	2.5.....400	3.1.....300	6.2.....160	7.4....115	10.6....80	16.5.....50
18259 RG58A/U	2.6.....350	3.3.....255	6.5.....145	7.9....100	12.2....70	20.8.....40
18268 RG214/U	1.2.....1800	1.6.....1300	2.8.....620	3.5....520	5.2....300	8.0.....200
18261 RG11A/U	3.3.....170	2.8.....72	8.4.....50	15.0....36	24.5....25	31.0.....18
183242 RG142/U	1.1.....9000	2.7.....3500	3.9.....2400	5.6....1600	8.2....1100	12.5.....700
The above data is for general reference information purposes only.

The Importance of Replacing your Coax Cable

The life of a coaxial cable depends on many factors. Some of those factors are ultra-violet exposure, migration, high humidity, age, corrosion, power/heat, and voltage. Here are some important guidelines to remember when you start considering the replacement of your coaxial cable run(s).

Ultra-Violet exposure breaks down the plasticizers of the jacket over time. As a guideline: Type IIa (2a) non-contaminating PVC jackets can last twice as long as type Ia (1a) PVC jacket.
Migration & Corrosion affects the attenuation stability over time by contamination of the dielectric due to jacket plasticizers, and moisture penetration through the jacket.
Power electrical losses result from the generation of heat in the center conductor; braid shield, and the dielectric. The power handling capability of a cable is related to its ability to effectively dissipate this heat. Please be aware that a solid or semi-solid polyethylene dielectric dissipates heat better than a foam polyethylene dielectric, since most of the heat is generated in the center conductor. On balance, the power handling capability of a coaxial cable is inversely proportional to its attenuation, and to its size. This is why RG213/U (CABLE X-PERTS # 18267) handles higher power more efficiently than for example RG58/U (CABLE X-PERTS # 18240). Another factor is the thermal conductive (or heat transfer) properties of the cable, especially within the dielectric. In other words, high ambient temperature, and high altitude could reduce the power rating by impeding the heat transfer out of the cable. High VSWR also reduces the power ratings due to localized HOT SPOTS at poor connector terminations and/or other improper usage.
Operating Voltage is represented by two separate voltage ratings.

Corona is a related ionization phenomenon that causes noise generation, which leads to long term dielectric damage, and eventual breakdown of the cable. Note: High wattage amplifiers can cause premature dielectric deterioration and larger Corona affects.
Dielectric Withstanding Voltage a voltage level that abruptly breaks down the dielectric. To ensure the dielectric integrity of CABLE X-PERTS cables and assemblies, they are HI-POT Ò tested during manufacturing and in our ready-made cable assembly department.

In summation, coaxial cable can perform to it’s maximum designed efficiency an average of seven years to ten years, provided the connectors are appropriately terminated and the cable is installed correctly. So if your signal is fading or you’re getting erratic VSWR readings, or are unable to get the maximum performance from your transceiver, then its time to consider changing your coaxial cable or cable assemblies.

Abbreviation Chart

CENTER CONDUCTORS TYPES
  BC  Bare Copper
  TC  Tinned Copper
  STRD  Stranded
  SOL  Solid
  SPC  Silver Plated Copper
  CCA  Copper Covered Aluminum
  CCS Copper Covered Steel
  CW  Copperweld (Copper Covered Steel).
  SCCS  Silver Covered Copper Steel.

SHIELD TYPES
  100%F+95  100% Aluminum Bonded Foil
+95% Tinned Copper Braid
  COR-COP  Corrugated Copper
  95%+BC  Minimum 95% Bare Copper
  2/95%SC  Two 95% Coverage Minimum
   Silver Plated Copper

DIELECTRIC TYPES
  SSPE  Semi-Solid Polyethylene 84% V/P
  CCFP  Closed-Cell Foam Polyethylene 84% V/P
  LDF  Low-Density Foam Polyethylene 88% V/P
  SPE  Solid Polyethylene 66% V/P
  FPE  FoamPolyethylene 78% V/P
  STFE  Solid Teflon 69.4% V/P
  V/P  Velocity of Propagation

JACKET TYPES
  IA  Ultra-Viotlet Resistant PVC
  IIA  UVR-DB Non-Contaminating PVC Direct Burial
  IIIA  Ultra-Violet Resistant Polyethylene
  FEP  Teflon
  TPE  Thermo-Plastic Elastomer
  BLK UVR  Black Ultra-Violet Resistant
  UVR-DB  Ultra-Violet Resistant Direct Burial

Connector Cross Reference Chart

Part #	PL259	SO239	"N" male	"N" female	BNC male	R/A BNC	BNC female	SMA
9913FX	401TS	X	6633S	RFN-1024-1SI	RFB11011SI	X	X	X
LMR400	401TS	X	6633S	RFN-1024-1SI	RFB11011SI	X	X	X
LMR400-UF	401TS	X	6633S	RFN-1025-1SI	FRB11011SI	X	X	X
18267	401TS	17-26B-TGN	6633S	RFN-1024-1SI	320	X	X	X
18214	401TS	17-26B-TGN	6633S	RFN-1024-1SI	320	X	X	X
19258	401TS/403S	X	6633S/403S	X	385	X	X	X
LMR240	401TS/403S	X	6633S/403S	X	385	X	X	X
LMR240UF	401TS/403S	X	6633S/403S	X	385	X	X	X
18240	401TS/402S	RFU527	6633S/402S	X	381	X	RFB1123C1	1557
18259	401TS/402S	RFU527	6633S/402S	X	381	X	RFB1123C1	1557
18268	401TS	X	6633S	X	X	X	X	X
18217	NE5080	X	X	X	X	X	X	X
18216	X	X	X	X	336	X	X	1559
183242	401TS/402S	RFU527	6633S/402S	X	381	RFB1110-1	RFB1123C1	1557
18261	401TS	17-26B-TGN	6633S	RFN-1024-1SI	320	X	X	X
19114	F" #105	X	X	X	X	X	X	X
19114Q	F" #127	X	X	X	X	X	X	X

Routing of Cables

Routing of Cables (with or without connectors)
through the exterior wall of a building or home

How many cables do you plan to route through the PVC pipe? Consider future installations too.
Total up their O.D. Do this by adding the total O.D. of the cables, be sure to include the connectors if installed. Divide that amount in half. All of our cable’s O.D are listed in our catalog. Example: Four legs of RG8/U size and two #5971 rotor cables total nominal "O.D. is slightly over 1".
Purchase a piece of PVC pipe long enough to go through the walls. Add about 6" for the exterior & interior sides. The PVC pipe’s ID should be at least two times larger than the total cable’s O.D.
Also purchase a 90° elbow fittings and a rubber "end fitting" boot w/clamp.
Purchase a drill bit a ¼ larger than the PVC pipe’s O.D and long enough to go straight through all layers of the structure.
Now decide on a good location to place the PVC pipe, usually one closest to your equipment is best. Please use caution by making sure you avoid all electrical lines and gas pipes.
Make the drill hole and then push the PVC pipe from the exterior side all the way through the opening.
Once secure, apply a good weatherproofing caulk around the PVC pipe and add support if needed.
Let it set overnight and cap temporarily with the rubber boot.
Make an X cut in the rubber boot. This will create a flap in which to route the cables through, yet keeping the elements out.
From the outside, start by carefully routing the cables through the rubber boot, into the 90° elbow, continue by routing the cables into the PVC pipe all the way through to the other side. (see fig 1-4)
Once finished secure the rubber boot to the 90° elbow and the 90° elbow to the PVC pipe. Caution: Do not cement the elbow to the PVC pipe. For in the future, you may want to add and/or replace some cables. (see fig 1-4)

Note: The 90° elbow forces the cable downward, thus creating a "drain loop."