LF: Receivers for LF and MF 136 KHz @ 477KHz ???

["Graham" <g8fzk@g8fzk.fsnet.co.uk>]

Receivers for LF and MF    136 KHz  @ 477 KHz

 

A question,

 

Starting  at the  £5  dongle  rigged  for  direct  sample , as a  cheap  effective  starting  point   

 

A pre amp and  pre - selector [ band pass filter ] would  help  for  lf/mf

 

What  would  be  in a scale  of  increasing  performance  [ not  cost !]

be seen as   reasonable in terms of  configuration  and  hardware  ?

 

Any particular equipments  stand out   as  good  cost/performance   choices ?

 

Tnx

 

Graham

G0NBD