[1000mp] INRAD 550 Hz Filter

[John Rippey]

Earl mentioned in a recent posting that he was not sure that INRAD has a 
500 Hz CW filter for the MP series. It does. It's relatively recent, and 
one is in the sub-receiver slot in my Mk V Field. I prefer the standard 
Yaesu 500 Hz Collins filter in the main receiver since it does not cause 
as much in the way of clicks, thumps in the headphones. I do not 
understand why Yaesu provided this unwelcome feature, when its 
competitors do not..

73,
John, W3ULS