Topband: FT-2000 for serious TB DXing?

[Steve London]

Robert McGwier wrote:
> 
> 
> The 2 KHz numbers in the ARRL review are .....  AWFUL.
> 
> The 2 KHz BDR is 64 dB on 80 meters.
> The 2 KHz IP3 is -19 dBm.  That is not PLUS 19 but MINUS 19 dBm.
> The 2 KHz IMD dynamic range is 63 dB.
> 
> WOW.  This is just awful.  At 2 Khz,  the receiver has basically just 
> collapsed.  With a strong station just outside of your "500 Hz" filter, 
> your receiver will basically be blocked off.
> 
> Two S9 signals will produce lots of spurious emissions inside your 
> passband due to 3rd order products.  Myriad signals adding up on 160 
> should introduce lots of ghosts in your passband.
> 

Indeed !  In fact, compare these FT-2000 numbers with the QST review of the 
FT-1000MP + Inrad roofing filter in February 2005 QST. The FT-2000, with its 
built-in Yaesu roofing filters, has worse 2 kHz IMD numbers than an FT-1000MP 
without any roofing filters whatsoever !  How could they have screwed up the 
FT-2000 design so badly ?

73,
Steve, N2IC