[HBQRP] HBQRP meeting ideas and group project ideas for 2014

Ray McNally raymcn at gmail.com
Sun Dec 15 07:44:37 EST 2013


Darrel,  Great write-up.

  Loop antenna info:

  The heliax has 1 male and 1 female connector.  Looks like right at 30 to
32 feet - roughly 3.5 feet dia with 3 coils.

  An online calculator gives 26 pf self capacitance,
 7.4MHz   50 pf  2Kv at 4Amps  bandwidth ~24 KHz
 7MHz      56 pf
 4MHz      171 pf  2.5Kv at 12Amps
 3.5MHz   236 pf   bandwidth ~ 3KHz

 Anyhow, just some quick info.

73,
Ray - N5SEZ


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