Ham Radio Coaxial Cable Power Handling and Loss = Specifications

From: Subject: Ham Radio Coaxial Cable Power Handling and Loss Specifications Date: Wed, 8 Nov 2006 22:08:54 -0500 MIME-Version: 1.0 Content-Type: multipart/related; type="text/html"; boundary="----=_NextPart_000_0000_01C70382.7AB91450" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 This is a multi-part message in MIME format. ------=_NextPart_000_0000_01C70382.7AB91450 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Content-Location: http://www.hamuniverse.com/coaxdata.html Ham Radio Coaxial Cable Power Handling and Loss = Specifications



	Chart # 1 =3D Loss per 100 feet Chart = # 2 =3D Power=20 Handling Click here to return to Antenna = Lab




CHART #1 db=20 = loss &n= bsp; =20 RG/U CABLE	1.0	10	50	100	200	400	900	1000	3000	5000
6A,212	.26	.83	1.9	2.7	4.1	5.9	6.5	9.8	23.0	32.0
8 MINI, 8X		1.1	2.5	3.8	5.4	7.9	8.8	13.0	26.0
LMR -240	.24	.76	1.7	2.4	3.4	4.9	7.5	7.9	14.2	18.7
8, 8A, 10A, 213	.15	.55	1.3	1.9	2.7	4.1	7.5	8.0	16.0	27.0
9913,9086,9096			0.9	1.4	1.8	2.6	4.2	4.5		13.0
4XL8IIA,FLEXI 4XL			0.9	1.4	1.8	2.6	4.2	4.5		13.0
LMR-400			.9	1.2		2.5	4.1	4.3
LMR-500			.7	1.0		2.0	3.2	3.4
LMR-600			.6	.8		1.4	2.5	2.7
8214		.60	1.2	1.7	2.7	4.2		7.8	14.2	22.0
9095			1.0	1.8	2.6	3.8	6.0	7.5
9,9A,9B,214	.21	.66	1.5	2.3	3.3	5.0	7.8	8.8	18.0	27.0
11,11A,12,12A,13,13A,216	.19	.66	1.6	2.3	3.3	4.8		7.8	16.5	26.5
14,14A,217	.12	.41	1.0	1.4	2.0	3.1		5.5	12.4	19.0
17,17A,18,18A,218,219	.06	.24	.62	.95	1.5	2.4		4.4	9.5	15.3
55B,223	.30	1.2	3.2	4.8	7.0	10.0	14.3	16.5	30.5	46.0
58	.33	1.2	3.1	4.6	6.9	10.5	14.5	17.5	37.5	60.0
58A,58C	.44	1.4	3.3	4.9	7.4	12.0	20.0	24.0	54.0	83.0
59,59B	.33	1.1	2.4	3.4	4.9	7.0	11.0	12.0	26.5	42.0
62,62A,71A,71B	.25	.85	1.9	2.7	3.8	5.3	8.3	8.7	18.5	30.0
62B	.31	.90	2.0	2.9	4.2	6.2		11.0	24.0	38.0
141,141A,400,142,142A	.30	.90	2.1	3.3	4.7	6.9		13.0	26.0	40.0
174	2.3	3.9	6.6	8.9	12.0	17.5	28.2	30.0	64.0	99.0
178B,196A	2.6	5.6	10.5	14.0	19.0	28.0		46.0	85.0	100
188A,316	3.1	6.0	9.6	11.4	14.2	16.7		31.0	60.0	82.0
179B	3.0	5.3	8.5	10.0	12.5	16.0		24.0	44.0	64.0
393,235		.6	1.4	2.1	3.1	4.5		7.5	14.0	21.0
402		1.2	2.7	3.9	5.5	8.0		13.0	26.0	26.0
405								22.0
LDF4-50A	.06	.21	.47	.68	.98	1.4	2.2	2.3	4.3	5.9
LDF5-50A	.03	.11	.25	.36	.53	.78	1.2	1.4	2.5	3.5

Coaxial Cable = Power and=20 Loss Ratings
Nominal attenuation db/100 = feet at=20 (MHz) Scroll down for Power Chart
BACK TO ANTENNA LAB

CHART # 2 WATTS at=20 MHZ RG/U CABLE =

1.0 10 50 100 200 400 900 1000 3000 5000

55,6A,212

4000 1500 800 550 360 250 150 65 50

8 MINI,8X

4000 1500 800 550 360 250 150 65 50

8,8A,10A,213

11000 3500

1500

975 685 450 230 115 70

9913,9086,9096

3500 1500 975 685 450 230 115 70

4XL8IIA,FLEXI 4XL

3500 1500 975 685 450 230 115 70

9095

11000 3500 1500 975 685 450 230 115 70

9,9A,9B,214

9000 2700 1120 780 550 360 200 100 60

11,11A,12,12A,
13,13A,216

8000 2500 1000 690 490 340 200 100 60

14,14A,217

20000 6000 2400 1600 1000 680 380 170 110

17,17A,18,18A,
218,219

50000 14000 5400 3600 2300 1400 780 360 230

55B,223

5600 1700 700 480 320 215 120 60 40

3500 1000 450 300 200 135 80 40 20

58A,58C

3200 1000 425 290 190 105 60 25 20

59,59B

3900 1200 540 270 270 185 110 50 30

62,62A,71A,71B

4500 1400 630 440 320 230 140 65 40

62B

3800 1350 600 410 285 195 110 50 31

141,141A,400
142,142A

19000 9000 3500 2400 1600 1100 650 350 245

174

1000 350 160 80 80 60 35 15 10

178B,196A

1300 640 330 240 180 120 75 40 -

188A,316

1500 770 480 400 325 275 150 80 53

179B

3000 1400 750 480 420 320 190 100 73

393,235

25000 9500 6300 4300 2800 1700 880 620

402

9000 3500 2400 1600 1100 650 350 245

405

130

LDF4-50A

19000 6100 2600 1880 1310 906 563 551 294 217

LDF5-50A

44000 7700 7740 5380 3720 2550 1620 1520 785 568

Velocity Factor of = Propagation=20 Through Coaxial Cable

The velocity factor is the speed at = which an=20 RF signal travels through a material compared to the speed = the
same=20 signal travels through a vacuum. The velocity of propagation is = inversely=20 proportional to the dielectric
constant. Lowering the constant=20 increases the velocity.
Generally, the higher the velocity = factor, the=20 lower the loss through a coaxial cable.

General Rules for Coaxial = Cable
D =3D diameter of insulation under = the=20 shield
d =3D diameter of inner = conductor.

Velocity Factor, Velocity of = Propagation,=20 Vp
The higher the = velocity=20 factor, the lower the loss through the cable.
Raising the D/d = has no=20 effect on Vp
Raising the dielectric constant lowers=20 Vp

Capacitance=20
Raising the D/d = ratio lowers=20 capacitance
Raising the dielectric constant raises=20 capacitance
Impedance Raising the D/d radio raises = impedance
Raising=20 the dielectric constant lowers impedance

Attenuation or Loss
Raising the D/d ratio lowers=20 attenuation
Raising the dielectric constant raises=20 attenuation

Back to Antenna Lab 3D1=20

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