With an external battery it is possible to get oscillations due to  poor power
bypassing and filtering at the unit. 
 
 
Cortland
KA5S
 
 

        ----- Original Message ----- 
        From: Julian Jones <mailto:[email protected]>  
        To: [email protected]
        Sent: 8/11/2008 6:43:11 AM 
        Subject: monopole recommendations

        
        we need to get a back up for our EMCO 3301, 41 inch rod antenna. 
         
        looking for recommendations for what other labs are using. I've noted 
the
changes MIL 461F brings with grounding the connector especially.
         
        I've almost finalised on the A H systems SAS-550-1B has anyone got / 
used
this one ? any problems to report.
         
        Rgds
         
         
         
        Julian Jones.org/emc-pstc 

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