Robert11,

I never found there to be much of a difference in grounding any radio
chassis to a cold H2O pipe myself-- your mileage may vary, but it may be
more hassle than it's worth to implement if you notice no real difference.

The new antenna sounds like a very good installation compared to what you
had before. The rule of thumb I was taught to go by concerning antennas is
try get them outdoors and up as high as you can. In the case of an
inverted-L design, those work well for most receiver applications.

Good listening to you,

Jackie