About a year ago I converted the 102" whip +6" riser I was using for CB on my SUV into a ham antenna by adding a remote autotuner right at the feed point. Thus far I've made contacts on 20 through 80 meters.
Today I remade my SUV model for 4nec2. I had to remake it as I lost all of the models I had not to long ago. This version of the model was designed to be use-able as los as the 80 meters band when modeling, which is new for me as with previous vehicle models I made had trouble even at 40 meters.
As I was curious what the modeling software would show for this layout, I modeled my SUV on several ham bands.
Here is the vertical pattern, the front of the SUV is to the right.
And the horizontal pattern. On these models, up is the front of the vehicle.
Most of these models are showing lower gain towards the front of the vehicle, I haven't noticed this, but I haven't really been paying attention for something like this either. With where the antenna is most people would expect their to be more gain towards the front as the antenna is almost to the back of the vehicle on the roof... I guess at some point I will have to test this with a field strength meter to verify the weaker signal towards the front...
I've also made a small pickup model based on the Ford Ranger, although I haven't really played with that much yet...
The DB
Today I remade my SUV model for 4nec2. I had to remake it as I lost all of the models I had not to long ago. This version of the model was designed to be use-able as los as the 80 meters band when modeling, which is new for me as with previous vehicle models I made had trouble even at 40 meters.
As I was curious what the modeling software would show for this layout, I modeled my SUV on several ham bands.
Here is the vertical pattern, the front of the SUV is to the right.
And the horizontal pattern. On these models, up is the front of the vehicle.
Most of these models are showing lower gain towards the front of the vehicle, I haven't noticed this, but I haven't really been paying attention for something like this either. With where the antenna is most people would expect their to be more gain towards the front as the antenna is almost to the back of the vehicle on the roof... I guess at some point I will have to test this with a field strength meter to verify the weaker signal towards the front...
I've also made a small pickup model based on the Ford Ranger, although I haven't really played with that much yet...
The DB