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#1
October 1st 05, 01:23 AM
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Winding details for antenna choke ?
Hi,
Is there a method for obtaining the number of turns for a given diameter for the antenna choke ? (I am not sure if this will be simple air-core coil formula or "suck it and see" type arrangement). ie. I have a sleeve antenna at 915MHz constructed from RG316 coaxial cable. It is fed up the centre of 1/4" nylon tubing. I want to create a choke at the feedpoint from the RG316 wound around the outside of the 1/4" tubing but not sure of how many turns would be required. Thanks in advance Regards David |
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#2
October 1st 05, 02:27 AM
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"David" wrote in message
... Hi, Is there a method for obtaining the number of turns for a given diameter for the antenna choke ? (I am not sure if this will be simple air-core coil formula or "suck it and see" type arrangement). ie. I have a sleeve antenna at 915MHz constructed from RG316 coaxial cable. It is fed up the centre of 1/4" nylon tubing. I want to create a choke at the feedpoint from the RG316 wound around the outside of the 1/4" tubing but not sure of how many turns would be required. Thanks in advance Regards David How about a ferrite choke? 73 H. |
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#3
October 1st 05, 04:07 AM
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For design of solenoid chokes wound with coax cable, download program
SELFRES3 from website below. -- .................................................. .......... Regards from Reg, G4FGQ For Free Radio Design Software go to http://www.btinternet.com/~g4fgq.regp .................................................. .......... |
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#4
October 1st 05, 04:43 AM
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Thank you.
Reg Edwards wrote: For design of solenoid chokes wound with coax cable, download program SELFRES3 from website below. -- .................................................. ......... Regards from Reg, G4FGQ For Free Radio Design Software go to http://www.btinternet.com/~g4fgq.regp .................................................. ......... |
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#5
October 4th 05, 12:32 AM
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Dave, please tell me whether you ran the program OK.
The numbers are correct but I was not happy with the introductory notes. Did they make sense to you? ---- Reg, G4FGQ "David" wrote in message ... Thank you. Reg Edwards wrote: For design of solenoid chokes wound with coax cable, download program SELFRES3 from website below. -- .................................................. ......... Regards from Reg, G4FGQ For Free Radio Design Software go to http://www.btinternet.com/~g4fgq.regp .................................................. ......... |
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