[1000mp] While tuningup/down the band hearing blobsFT1000MP Mark V Field

Peter Connors monotreme at ntlworld.com
Sun Aug 20 09:08:31 EDT 2006


I can't tune down to 98.34kHz but the 'blob' (rx muting while the vco 
relocks to a new 'big step' in frequency?) is certainly more obvious at 
106.5kHz. An interesting curiosity but no observed disadvantage on this 
FT1000MP MkV Field - which leads me to suspect that may be more of a 
problem on some samples of the MP than others.

Pete, G4PLZ

Earl W Cunningham wrote:
> Pete, N4ZR wrote:
> 
> "...it is a synthesizer artifact, and is sufficiently unobtrusive that
> Yaesu left it alone.  Certainly, I'm not conscious of it unless I'm
> actively looking for it.  There is one at 14.008.31 USB."
> ==========
> Pete is the only one who accurately described the "blob" (which sounds
> like a click).  It occurs exactly every 8.192 kHz, beginning at 106.50
> kHz (98.34 kHz if you tune down that low).  The one at 14008.31 is the
> 1710th harmonic of 8.192 (although the "click" itself is not a harmonic).
> 
> This "click" exists on all MPs, MK Vs and Fields, regardless of those who
> say they don't have it.  As Pete said, you have to listen for it while
> tuning across one of them.  The "click" happens only when you tune across
> the frequency -- it doesn't continuously click if you park on a frequency
> it happens on.
> 
> 73, de Earl, K6SE
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