[1000mp] FT1000MP Key Clicks on first element DO Matter

[Pete Smith]

At 01:06 PM 1/1/03 -0800, k6se@juno.com wrote:
>It sounds like Ted's Field is better than most, but it still has clicks
>up to +/- 700 Hz - or a CW bandwidth of 1.4 kHz.  A clean CW signal
>should have no clicks at all outside of a narrow xtal filter passband of
>the receiver.


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.

Doesn't the speed of the keyed CW also enter into this?

I've read that a spectrum analyzer isn't a good tool for this assessment, 
but don't understand why it wouldn't be better that using a second RX.


73, Pete N4ZR
Happy Holidays