[Towertalk] attenuation of fir trees at 50 mhz and 144

Chris BONDE ve7hcb@rac.ca
Sat, 18 May 2002 10:51:31 -0700

At 01:21 PM 2002-05-18 +0000, DanB wrote:
>Looking for a study on attenuation of fir trees at 50 MHZ and 144.
>Dan NN7J
Make sure that you have data for the seasons as well, including wet and 
snow.  I have noticed a lot of difference on attenuation, reflection and 
difraction with the seasons.  We attributed such to the difference on the 
trees, mainly conifers mainly firs.

Try a test if you can measure the known Tx and receved Rx.

Chris opr VE7HCB