[1000mp] FT1000MP Key Clicks on first element DO Matter
Pete Smith
[email protected]
Thu, 02 Jan 2003 01:41:52 -0500
At 09:21 PM 1/1/03 -0800, [email protected] wrote:
>"Is this correct? Seems to me that if the suppressed carrier frequency
>of the test RX is 700 Hz off the Field's frequency, and the test RX has
>good, cascaded 400 hz filters, for example, then its response will be
>only down ~ 6 dB (at a guess) at 300 Hz away from the Field. That
>doesn't sound to me like a very good test."
>----------
>If you tune outside of the receiver's passband where you can no longer
>hear the CW signal but you hear clicks, the transmitted signal has
>clicks. This is exactly what happens when you hear key clicks (but no
>signal) in your receiver during a CW contest, for instance.
This strikes me as just too "binary" a standard. No receiver has infinite
rejection of all energy outside its passband. This is why I asked why a
spectrum analyzer, properly used, wouldn't be a better test.
73, Pete N4ZR
Happy Holidays