[hpsdr] Mercury Rx on 144 MHz

Phil Harman phil at pharman.org
Sun Aug 1 05:17:59 PDT 2010


Hi Maximo,

Yes, you need to modify the filter at the output of the preamp (LTC6400-20) to increase the bandwidth but it works quite well.  Without any other mods I can hear the local FM repeaters fine.  For serious work you will need a low noise preamp and suitable filters. 

By fitting an external bandpass filter between JP2 and JP3 you can also use Penelope on 2m.

73's Phil...
  ----- Original Message ----- 
  From: Maximo EA1DDO_HK1DX 
  To: hpsdr at openhpsdr.org 
  Sent: Sunday, August 01, 2010 7:52 PM
  Subject: [hpsdr] Mercury Rx on 144 MHz


  ***** High Performance Software Defined Radio Discussion List *****




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  Hi,

  Anyone did try to receive on 144 MHz, with the appropiate band pass filter?


  Thanks

  73, Maximo - EA1DDO



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