If you are working with 5w into a handheld Yagi trees + leaves are rough. Running +50w into huge yagis with preamps they probably do not matter too much on 2m/70cm, above that and they certainly will.
Different answer for different operating conditions.
73, Don KB2YSI
On Fri, Sep 14, 2018, 18:51 Jeff Johns jeff30339@gmail.com wrote:
Trees with wet leafs on them tend to gobble up UHF uplinks. It’s not quite as bad on VHF but can have an affect.
Jeff WE4B
On Sep 14, 2018, at 3:51 PM, Paul Andrews w2hro.fn20@gmail.com wrote:
Trees cause real attenuation on both 2M and 70cm. Near field effects are more pronounced that far field.
It's not a hobby killer but it will degrade your performance.
Trees are a hobby killer for EME on 2M and above.
73 - Paul - W2HRO
On Fri, Sep 14, 2018, 16:46 Bob- W7LRD w7lrd@comcast.net wrote:
Hi All- Just wondering-in the real world how much attenuation is there with trees? I am surrounded with fir trees, a huge maple tree and cedar tree, (I live in the north west). I run a IC-910, preamps at the cp yagis.
73 Bob W7LRD
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