Sonobuoy receivers

[Rene Swift <>]

<tt>We are looking for a wideband sonobuoy receiver with a calibrated low 
 frequency audio output down to 5 or 10Hz for recording the vocalisations 
 of blue and fin whales. We have in the past used a modified Yeasu 
 FR-9600 receiver and modified AOR-8000 hand held receiver, the former 
 has now been superseded and the latter gave a distorted low frequency 
 output. We are looking for advice from all those who have experience 
 with sonobuoys and have a limited budget that precludes the purchase of 
 the Winradio (www.sonobuoy.com) sonobuoy receivers.</tt><br>
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 <pre style="margin: 0em;">A summary of responses will be posted.</pre><br>
 <pre style="margin: 0em;">Many thanks in advance.</pre><br>
 <pre style="margin: 0em;">Rene Swift & Tony Martin
 [EMAIL PROTECTED]</pre><br>