what could be the value of that RF choke!

Discussion in 'Wireless & RF Design' started by aj_silverthunder, Nov 18, 2009.

  1. aj_silverthunder

    Thread Starter Active Member

    Jun 6, 2009
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    guys please tell me what could be the value of that RF choke in this schematic!
     
  2. aj_silverthunder

    Thread Starter Active Member

    Jun 6, 2009
    116
    0
    here is the schematic
     
  3. Papabravo

    Expert

    Feb 24, 2006
    10,142
    1,790
    It could literally be anything. It is hard to know the mind of the desinger when we know what the application is, let alone when a schematic of dubious provenace is plopped down in front of us. You might well ask for the details on L1/L2 which are equally obscure.

    Give us a break already.
     
  4. aj_silverthunder

    Thread Starter Active Member

    Jun 6, 2009
    116
    0
    is RF choke necessary there!!!!!!!!
     
  5. KL7AJ

    AAC Fanatic!

    Nov 4, 2008
    2,040
    287
    That choke is fairly non-critical, as it is only used for power supply decoupling. 1 mh is a good choice for that.

    Eric
     
  6. aj_silverthunder

    Thread Starter Active Member

    Jun 6, 2009
    116
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    there u can see a ground connection in the negative lead of the circuit!.should i connect it to the metal case of transmitter for a good ground connection or is it of no use!
     
  7. aj_silverthunder

    Thread Starter Active Member

    Jun 6, 2009
    116
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    i think 1uH is fine,what do u say
     
  8. aj_silverthunder

    Thread Starter Active Member

    Jun 6, 2009
    116
    0
    guys how do they select the RF choke,i mean on what parameters do u select the value of the RF choke.like the power supply,voltage,etc...please help me !
     
  9. aj_silverthunder

    Thread Starter Active Member

    Jun 6, 2009
    116
    0
    guys how do they select the RF choke,i mean on what parameters do u select the value of the RF choke.like the power supply,voltage,etc...please help me !
     
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