Which of the Diamond 770H and 780R antennas should I choose?

BI3BUV

安装在GL8车尾部，安装位置距离车顶90㎝，770H有高出10㎝，780R高出20㎝，及时安装780R整体高度也2.05米，不影响通过性。
请大佬提供宝贵意见

xunjian

BI3BUV

Based on the provided data, it seems like you intended to install it this way. However, it's important to thoroughly test the standing wave performance in this configuration. Installing it with a mounting bracket on the roof is likely a better solution.

BA7NNC-JOE

First, use an oscilloscope to measure and determine the most stable setting.

BI3BUV

BA7NNC-JOEBoth the power meter and the antenna were measured.

BI3BUV

xunjian
Place an antenna on each side. Which location would be best for establishing a standing wave?

BI3BUV

xunjian The roof rack is difficult to install, and the original car does not have one.

BI7CKO

To get the hood back into place, you can either use a pry bar to gently lift the edge of the hood, or use a suction cup to attach it to the roof.

BI3BUV

BI7CKO As for the front of the hood, visibility might not be very good.

xunjian

BI3BUV I don't guess, I have no experience, I am the one who removes the roof and drills holes in it.🤪

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