It only costs a dB or two to have a wideband, and it is very
good insurance.

I think you'll find in general Christian, its more than that in a lot of
instances!..

Not necessarily. Indeed, take the Blake DMX10A (Band A) mentioned earlier.
According to Blake, it has 12.89dB gain, just 0.29dB more than the DMX10WB
(Wideband) at 12.60dB.

Obviously, you could go for a genuine wideband log periodic rather than a
Yagi. These definitely have lower gain figures. However, the gain doesn't
tell the whole story, as the log periodic has a much smoother response
spectrum and smaller side lobes and so can often provide better performance
in actual service.

Christian.