[Premium-Rx] Odd behavior by NRD-515

[Charles Steinmetz]

Howard wrote:

>Sure enough, I found just what he did. In tuning through the single 
>step from 599.9 kHz to 600.0 kHz, the background hiss goes from 
>normal to virtually absent, a very striking change.
>
>The band of decreased sensitivity corresponds so closely to the MW 
>broadcast band that I wonder whether this is a coincidence.

The BCB performance of the 515 has been roundly criticized by pretty 
much everyone.  You need to peak the BFO/BC control as you tune the 
BCB.  Even peaked, there is a 15-18dB signal loss.  See p. 11:

<www.radiomanual.info/schemi/RX/JRC_NRD-515_review.pdf>

Best regards,

Charles