Differences between revisions 2 and 8 (spanning 6 versions)

RF Cable selection

For low loss, high power, low radiation purpose

Andrew Heliax series: 1/4", 3/8", 1/2", ... http://www.rfparts.com/coax/heliaxcoax.html

Drawback: Thick cable = low flexibility. Practically only compatible with N-connectors

FSJ1-50A

Thickness 1/4"
Impedance 50 hm
Capacitance 24.2 pF/ft | 79.4 pF/m
DCR_in 3.000 Ohms/kft | 9.843 Ohms/km
DCR_out 2.000 Ohms/kft | 6.562 Ohms/km
30MHz 0.973 dB/100ft 3.19 dB/100m
50MHz 1.26 4.14
150MHz 2.21 7.25
200MHz 2.56 8.41
894MHz 5.61 18.4
1500MHz 7.41 24.3
2300MHz 9.37 30.7

FSJ2-50A

Thickness 3/8"
Impedance 50 hm
Capacitance 24.3 pF/ft | 79.7 pF/m
DCR_in 1.290 Ohms/kft | 4.232 Ohms/km
DCR_out 1.520 Ohms/kft | 4.987 Ohms/km
MHz dB/100ft dB/100m AvgPow
0.5 0.27 0.082 13.20
1 0.383 0.117 13.20
1.5 0.469 0.143 13.20
2 0.542 0.165 13.20
10 1.219 0.372 6.97
20 1.732 0.528 4.91
30 2.128 0.649 3.99
50 2.762 0.842 3.08
88 3.691 1.125 2.30
100 3.943 1.202 2.16
108 4.103 1.25 2.07
150 4.864 1.482 1.75
174 5.254 1.601 1.62
200 5.65 1.722 1.50
300 6.99 2.13 1.22
400 8.139 2.481 1.04
450 8.665 2.641 0.98
500 9.166 2.794 0.93

FSJ4-50A

Thickness 1/2"
Impedance 50 hm
Capacitance 25.2 pF/ft | 82.7 pF/m
DCR_in 0.820 Ohms/kft | 2.690 Ohms/km
DCR_out 1.000 Ohms/kft | 3.281 Ohms/km
MHz dB/100ft dB/100m AvgPow
0.5 0.231 0.07 15.60
1 0.327 0.1 15.60
1.5 0.401 0.122 15.60
2 0.463 0.141 15.60
10 1.044 0.318 10.14
20 1.485 0.453 7.12
30 1.828 0.557 5.79
50 2.377 0.724 4.45
88 3.187 0.971 3.32
100 3.406 1.038 3.11
108 3.546 1.081 2.98
150 4.214 1.285 2.51
174 4.558 1.389 2.32
200 4.908 1.496 2.16
300 6.095 1.858 1.74
400 7.121 2.17 1.49
450 7.592 2.314 1.39
500 8.042 2.451 1.32

For high allowable loss, low power, low radiation purpose

BELDEN 1671J

http://www.belden.com/techdatas/english/1671J.pdf

RG-405/U spec 50 Ohm cable. Very flexible. SMA compatible.

Drawback: High loss.

Thickness RG405
Impedance 50 hm
Capacitance 29.5 pF/ft
DCR_in 64.2 Ohms/kft
DCR_out 10.2 Ohms/kft
MHz dB/100ft dB/100m AvgPow
500 15.0
1000 22.2

Pasternack PE3818-300

RG-405/U spec 50 Ohm cable. Semi-rigid. SMA

This is a semi-rigid cable, and a copper jacket is exposed.

Drawback: High loss. / High stiffness.

Thickness RG405
Impedance 50 hm
Capacitance ---
DCR_in ---
DCR_out ---
MHz dB/100ft dB/100m AvgPow
1000 22.2 72.18 130

SRC SteelFlex

RG-405/U spec 50 Ohm cable. Flexible. SMA

=> We just can use 1671J

Drawback: High loss.

Thickness RG405
Impedance 50 hm
Capacitance 29.4pF/ft
DCR_in ---
DCR_out ---
MHz dB/100ft
1000 21.7

LMR series

LMR-100A

RG-316/RG-174 compatible, Thin, Flexible (1/4").

Thickness RG-316/RG-174
Impedance 50 hm
Capacitance 30.8pF/ft
DCR_in 81.0 ohms/kft
DCR_out 9.5 ohms/kft
MHz dB/100ft
30 3.9 12.9
50 5.1 16.7
150 8.9 29.4
220 10.9 35.8
450 15.8 52.9
900 22.8 74.9
1500 30.1 98.7

LMR-195A

RG-58/RG-142 compatible, still Flexible (1/2").

Thickness RG-316/RG-174
Impedance 50 hm
Capacitance 25.4pF/ft
DCR_in 7.6 ohms/kft
DCR_out 4.9 ohms/kft
MHz dB/100ft
30 2.0 6.5
50 2.5 8.4
150 4.4 14.6
220 5.4 17.7
450 7.8 25.5
900 11.1 36.5
1500 14.5 47.7

LMR-200A

Original size, still Flexible (1/2").

Thickness 0.195"
Impedance 50 hm
Capacitance 24.5pF/ft
DCR_in 5.36 ohms/kft
DCR_out 4.9 ohms/kft
MHz dB/100ft
30 1.8 5.8
50 2.3 7.5
150 4.0 13.1
220 4.8 15.9
450 7.0 22.8
900 9.9 32.6
1500 12.9 42.4

LMR-240A

Original size, getting stiffer Flexible (3/4").

Thickness 0.240
Impedance 50 hm
Capacitance 24.2pF/ft
DCR_in 3.2 ohms/kft
DCR_out 3.89 ohms/kft
MHz dB/100ft
30 1.3 4.4
50 1.7 5.7
150 3.0 9.9
220 3.7 12.0
450 5.3 17.3
900 7.6 24.8
1500 12.9 42.4

-  ⇤ ← Revision 2 as of 2014-12-17 23:07:27 → 
  Size: 66
  Editor: KojiaraiATligoDOTorg
  Comment:
+   ← Revision 8 as of 2014-12-18 00:58:04 → ⇥
  Size: 4265
  Editor: KojiaraiATligoDOTorg
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 3:
-== For low loss, high power purpose ==
+== For low loss, high power, low radiation purpose ==

Andrew Heliax series: 1/4", 3/8", 1/2", ...
http://www.rfparts.com/coax/heliaxcoax.html

Drawback: Thick cable = low flexibility. Practically only compatible with N-connectors

=== FSJ1-50A ===
 * Thickness 1/4"
 * Impedance 50 hm
 * Capacitance 24.2 pF/ft | 79.4 pF/m
 * DCR_in 3.000 Ohms/kft | 9.843 Ohms/km
 * DCR_out 2.000 Ohms/kft | 6.562 Ohms/km
 * 30MHz 0.973 dB/100ft 3.19 dB/100m
 * 50MHz 1.26 4.14
 * 150MHz 2.21 7.25
 * 200MHz 2.56 8.41
 * 894MHz 5.61 18.4
 * 1500MHz 7.41 24.3
 * 2300MHz 9.37 30.7


=== FSJ2-50A ===
 * Thickness 3/8"
 * Impedance 50 hm
 * Capacitance 24.3 pF/ft | 79.7 pF/m
 * DCR_in 1.290 Ohms/kft | 4.232 Ohms/km
 * DCR_out 1.520 Ohms/kft | 4.987 Ohms/km
 * MHz dB/100ft dB/100m AvgPow
 * 0.5 0.27 0.082 13.20
 * 1 0.383 0.117 13.20
 * 1.5 0.469 0.143 13.20
 * 2 0.542 0.165 13.20
 * 10 1.219 0.372 6.97
 * 20 1.732 0.528 4.91
 * 30 2.128 0.649 3.99
 * 50 2.762 0.842 3.08
 * 88 3.691 1.125 2.30
 * 100 3.943 1.202 2.16
 * 108 4.103 1.25 2.07
 * 150 4.864 1.482 1.75
 * 174 5.254 1.601 1.62
 * 200 5.65 1.722 1.50
 * 300 6.99 2.13 1.22
 * 400 8.139 2.481 1.04
 * 450 8.665 2.641 0.98
 * 500 9.166 2.794 0.93

=== FSJ4-50A ===
 * Thickness 1/2"
 * Impedance 50 hm
 * Capacitance 25.2 pF/ft | 82.7 pF/m
 * DCR_in 0.820 Ohms/kft | 2.690 Ohms/km
 * DCR_out 1.000 Ohms/kft | 3.281 Ohms/km
 * MHz dB/100ft dB/100m AvgPow
 * 0.5 0.231 0.07 15.60
 * 1 0.327 0.1 15.60
 * 1.5 0.401 0.122 15.60
 * 2 0.463 0.141 15.60
 * 10 1.044 0.318 10.14
 * 20 1.485 0.453 7.12
 * 30 1.828 0.557 5.79
 * 50 2.377 0.724 4.45
 * 88 3.187 0.971 3.32
 * 100 3.406 1.038 3.11
 * 108 3.546 1.081 2.98
 * 150 4.214 1.285 2.51
 * 174 4.558 1.389 2.32
 * 200 4.908 1.496 2.16
 * 300 6.095 1.858 1.74
 * 400 7.121 2.17 1.49
 * 450 7.592 2.314 1.39
 * 500 8.042 2.451 1.32

== For high allowable loss, low power, low radiation purpose ==

=== BELDEN 1671J ===

http://www.belden.com/techdatas/english/1671J.pdf

RG-405/U spec 50 Ohm cable. Very flexible. SMA compatible.

Drawback: High loss. 

 * Thickness RG405
 * Impedance 50 hm
 * Capacitance 29.5 pF/ft
 * DCR_in 64.2 Ohms/kft
 * DCR_out 10.2 Ohms/kft
 * MHz dB/100ft dB/100m AvgPow
 * 500 15.0
 * 1000 22.2


=== Pasternack PE3818-300 ===

RG-405/U spec 50 Ohm cable. Semi-rigid. SMA 

'''This is a semi-rigid cable, and a copper jacket is exposed.'''

Drawback: High loss. / High stiffness. 

 * Thickness RG405
 * Impedance 50 hm
 * Capacitance ---
 * DCR_in ---
 * DCR_out ---
 * MHz dB/100ft dB/100m AvgPow
 * 1000 22.2 72.18 130

=== SRC SteelFlex  ===

RG-405/U spec 50 Ohm cable. Flexible. SMA 

=> We just can use 1671J

Drawback: High loss.

 * Thickness RG405
 * Impedance 50 hm
 * Capacitance 29.4pF/ft
 * DCR_in ---
 * DCR_out ---
 * MHz dB/100ft
 * 1000 21.7

== LMR series ==

=== LMR-100A ===

RG-316/RG-174 compatible, Thin, Flexible (1/4").

 * Thickness RG-316/RG-174
 * Impedance 50 hm
 * Capacitance 30.8pF/ft
 * DCR_in 81.0 ohms/kft
 * DCR_out 9.5 ohms/kft
 * MHz dB/100ft
 * 30 3.9 12.9
 * 50 5.1 16.7
 * 150 8.9 29.4
 * 220 10.9 35.8
 * 450 15.8 52.9
 * 900 22.8 74.9
 * 1500 30.1 98.7



=== LMR-195A ===

RG-58/RG-142 compatible, still Flexible (1/2").

 * Thickness RG-316/RG-174
 * Impedance 50 hm
 * Capacitance 25.4pF/ft
 * DCR_in 7.6 ohms/kft
 * DCR_out 4.9 ohms/kft
 * MHz dB/100ft
 * 30 2.0 6.5
 * 50 2.5 8.4
 * 150 4.4 14.6
 * 220 5.4 17.7
 * 450 7.8 25.5
 * 900 11.1 36.5
 * 1500 14.5 47.7


=== LMR-200A ===

Original size, still Flexible (1/2").

 * Thickness 0.195"
 * Impedance 50 hm
 * Capacitance 24.5pF/ft
 * DCR_in 5.36 ohms/kft
 * DCR_out 4.9 ohms/kft
 * MHz dB/100ft
 * 30 1.8 5.8
 * 50 2.3 7.5
 * 150 4.0 13.1
 * 220 4.8 15.9
 * 450 7.0 22.8
 * 900 9.9 32.6
 * 1500 12.9 42.4


=== LMR-240A ===

Original size, getting stiffer Flexible (3/4").

 * Thickness 0.240
 * Impedance 50 hm
 * Capacitance 24.2pF/ft
 * DCR_in 3.2 ohms/kft
 * DCR_out 3.89 ohms/kft
 * MHz dB/100ft
 * 30 1.3 4.4
 * 50 1.7 5.7
 * 150 3.0 9.9
 * 220 3.7 12.0
 * 450 5.3 17.3
 * 900 7.6 24.8
 * 1500 12.9 42.4