[Elecraft] K2 SSB BOARD MODS

[G3VVT at aol.com]

In a message dated 22/03/05 03:04:24 GMT Standard Time, WA2JJH at aol.com  
writes:

There  was also a circuit in one of the worst radio's I have ever owned. The  
 
yeasu  Ft707 used
dual 8 pole filters in the 2nd IF. In between  the 2 filters was a   VCO. 
This 
gave an excellent IF
width  control. far superior to simple IF shift.



----------------------------------------
 
I had the Yaesu FT707 for a number of years and regretted parting with it  
for the later Yaesu FT757 (mkI). For SSB I found the FT707 RX very good and  
coped well with the hostile RF environment of 40m in Europe. In receiver  terms 
that band here sorts out the "men from the boys" in signal handling. The  FT707 
coped well with this, far better than any radio I had previously owned.  
There were warts with the radio in that the VFO initially drifted with  
temperature and had a pretty basic transmitter with limited power output on the  higher 
bands, but that continuously variable bandwidth system really worked  well. 
The variable bandwidth function on the FT757 was just a shadow  of the one on 
the FT707.
 
Far from being the worst radio I have owned.
 
Another point and I am not sure if others have experienced or agree with  
this, is that the FT757, TS440 and some other radios I have owned are fatiguing  
to listen to for long periods. Not sure what causes this effect, but some 
radios  are like this. The FT707 was good in being easy to listen to for extended  
periods as is the K2 and I find the various older JRC radios I have are  also 
superb.
 
Bob, G3VVT