In a message dated 22/03/05 03:04:24 GMT Standard Time,
[hidden email]
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
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