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Snap On RF Choke - 1/4"/6mm cable, RG58/8X/LMR240, Heat Shrink Option
SNO31-1/4-5W
$21.95
In stock
1
Product Details
Brand:
Palomar Engineers
MPN:
SNO-1/4-5W
Country/Region of Manufacture:
USA
Effective Frequency Range (MHz):
1.8-300
PEP Power Rating (watts):
same as coax cable rating
Estimated Insertion Loss (db):
.025
Input Connector Type:
none
Output Connector Connector Type:
none
Ground Connector (Y/N):
none
Enclosure Size (LxWxH inches):
none
Use for 1/4″ Cable – RG-58, RG8X, LMR-240, etc
Includes heat shrink option for protection from outdoor weather.
For 1/4” cables use five FSB31-1/4 split beads for 80-10 meters (3-30 mHz) or ten FSB31-1/4 split beads for 160-10 (1.8-30 MHz) meters or use 15 FSB31-1/4 for even higher choking for 1-10 MHz. A minimum impedance of 500 ohms is needed for 50 ohm cable or 10 times the cable impedance for other cables.
Typical Impedance per split bead: 10 Mhz: 100 ohms, 25 Mhz: 163 ohms, 100 Mhz: 275 ohms, 250 Mhz: 275 ohm
The beads clamp to the cable and may be operated as is for indoor use. However, it is strongly suggested that they be covered to protect the plastic covers from weathering – use electrical tape for best results or heat shrink to ensure longer life. All kits come with instruction manual which covers assembly and application tips.
As you can see from the impedance vs frequency graph, you can very effectively increase the choking impedance by increasing the number of beads on the cable.
Snap On and Slip on Feed line chokes available in sizes to fix cables with outside diameters of 1/4", 3/8", 1/2", 3/4", 1" - check website for other size options.
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Tutorials
Snap On RF Choke - 1/4"/6mm cable, RG58/8X/LMR240, Heat Shrink Option
Use for 1/4″ Cable – RG-58, RG8X, LMR-240, etc
Includes heat shrink option for protection from outdoor weather.
For 1/4” cables use five FSB31-1/4 split beads for 80-10 meters (3-30 mHz) or ten FSB31-1/4 split beads for 160-10 (1.8-30 MHz) meters or use 15 FSB31-1/4 for even higher choking for 1-10 MHz. A minimum impedance of 500 ohms is needed for 50 ohm cable or 10 times the cable impedance for other cables.
Typical Impedance per split bead: 10 Mhz: 100 ohms, 25 Mhz: 163 ohms, 100 Mhz: 275 ohms, 250 Mhz: 275 ohm
The beads clamp to the cable and may be operated as is for indoor use. However, it is strongly suggested that they be covered to protect the plastic covers from weathering – use electrical tape for best results or heat shrink to ensure longer life. All kits come with instruction manual which covers assembly and application tips.
As you can see from the impedance vs frequency graph, you can very effectively increase the choking impedance by increasing the number of beads on the cable.
Snap On and Slip on Feed line chokes available in sizes to fix cables with outside diameters of 1/4", 3/8", 1/2", 3/4", 1" - check website for other size options.