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

先弄个驻波表测一下在决定最稳妥

@"BI3BUV"#p91428 [upl-image-preview uuid=44791dfd-d356-4b98-be90-c88a49b5a212 url=https://storage.hamcq.cn/2025-12-29/1766979701-292239-image.png alt={TEXT?}] 从给出的数据看是想这样装，这样真的要好好测一下驻波。用放倒器装在车顶是更优解

安在前面机盖上回好一点其实，用夹边夹着盖子的边缘，或者用洗盘吸在车顶上

@"[未知用户]"#p91649 安在前面机盖上回好一点其实，用夹边夹着盖子的边缘，或者用吸盘吸在车顶上

安在前面机盖上回好一点其实，用夹边夹着盖子的边缘，或者用吸盘吸在车顶上

@"BI7CKO"#p91685 前机盖的话，视线会不太好

@"xunjian"#p91649 [upl-image-preview uuid=0a3aed30-2ebb-4f6d-9403-676af2b4f4d4 url=https://storage.hamcq.cn/2025-12-31/1767183658-964387-screenshot-20251231-202036.jpg alt={TEXT?}] 两侧各放了一个天线，猜一下哪个位置驻波没问题？

@"xunjian"#p91649 车顶不好安装，原车没有行李架

@"BA7NNC-JOE"#p91452功率计和天分都测了

@"BI3BUV"#p91946 不猜，没经验，我是顶棚拆下来车顶打洞的🤪

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

BI3BUV

The installation is located at the rear of the GL8 vehicle, with a distance of 90 cm from the roof. The 770H extends by 10 cm, and the 780R extends by 20 cm. After installing the 780R, the overall height is also 2.05 meters, which does not affect its passing ability.
Please provide your valuable insights.

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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