[hpsdr] Mercury Rx on 144 MHz

[Maximo EA1DDO_HK1DX]

Hi,

For those interested in SDR at 144 MHz band, I found a document about that by Jeffrey Pawlan WA6KBL;

http://www.50mhzandup.org/Software_Defined_Radio_at_144MHz.pdf

He did over Perseus but I guess HPSDR will do same better.

73, Máximo - EA1DDO
                                               




From: phil at pharman.org
To: ea1ddo at hotmail.com; hpsdr at openhpsdr.org
Subject: Re: [hpsdr] Mercury Rx on 144 MHz
Date: Sun, 1 Aug 2010 20:17:59 +0800








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 
  *****


  
  


  

  
  Hi,

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


Thanks

73, Maximo - 
  EA1DDO



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