[Orion] Inrad #352 Filter for Orion Question

[Bill Tippett]

DL6KAI wrote:
 >What is the advantage of the Inrad Filter to the Original Filter 
from  TenTec?

         The IMD performance of the 1000 Hz is far superior to the
standard 500 Hz filter because the latter uses an extra stage
of amplification.  The 650 Hz, which does not need extra amplification
due to its low insertion loss, may be placed in the 1000 position,
and it has superior IMD to the 1000 Hz.

         Note the second table on page 5 of the following website:

http://www.geocities.com/va3ttn/UsingOrionRX.pdf

                                 73,  Bill  W4ZV