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FIELD TEST / CASE STUDY

7020 Series 100 km Video Link Field Test

The report dated 27 October 2025 covers a 100 km test of the 7020-30-1400 and 7020-40-1400 modules. It includes test locations, spectrum captures and throughput measurements. All six pages of the supplied PDF are displayed below.

Module range descriptions in the report are separate from field measurements. The observed results apply to the recorded frequency, transmit power and antenna combinations.

Original report · 6 pages

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7020 Series 100 km Video Link Field Test — original report page 1 with its text, tables and images — Page 1 of 6

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测试名称：100 公里图传拉距测试 
测试时间：2025 年10 月27 日 
测试地点：百丈千亩杜鹃花基地、尖山观音寺 
 
  
测试方法：百丈千亩杜鹃花基地放置模块， 尖山观音寺放置模块， 网线接电脑； 网线接电脑。
建链后，模块之间互相灌包，测试实时带宽。 
测试模块： 
1、7020-30-1400： 双发双收双向图传， 最大发射功率2*30dBm， 中心频点1400MHz，最
大支持20MHz 带宽，单向最大47mbps 码率，支持2 跳4 节点MESH 组网，推荐使用范围30-
50KM。模块见下图左边所示。 
2、7020-40-1400： 双发双收双向图传， 最大发射功率2*40dBm， 中心频点1400Mhz。最
大支持20MHz 带宽， 单向最大47mbps 码率， 支持2 跳4 节点MESH 组网， 推荐使用范围100-
200KM。模块见下图右边所示。 
3、详细参数参考规格书参考。

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测试场景1 测试频点1400MHz，发射功率2*40dBm，带宽20MHz。两边分别接2dbi、
5dbi 天线测试码流。 
测试场景2 测试频点1400MHz，发射功率2*30dBm，带宽 20MHz。两边分别接2dbi、
5dbi 天线测试码流。

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测试数据汇总: 
注释：30dBm 模块发射功率强推到32dBm。双发，即单发的32+3=35dBm 
 
具体测试数据见下部分： 
用泰克便携式频谱扫描1.4G 频谱如下图所示，1350-1450 带内有强信号的干扰信号。 
 
 
图传软件自带频谱扫描如下图，也显示 1.4G 高频部分干扰比较大。 
频率
（mhz
） 
距离
（km） 
空中衰减 
（dB） 
发射功率 
(dBm) 
接收灵敏度 
（dBm） 
尖山天线 
（dBi） 
百丈天线 
（dBi） 
百丈 SNR 
(dB) 
灌包速
率 
（Mbps
） 
1400 100 135.3625607 35 -96 2 5 -2.0/ 3 
1400 100 135.3625607 35 -96 5 5 3.6/ 6.6 
1400 100 135.3625607 43 -96 2 5 6/6.3 14.6 
1400 100 135.3625607 43 -96 5 5 8.9/9.3 19.4

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2dBi+5dBi 天线1W 模块链路实时信息及灌包见下图。 
 
5dBi+5dBi 天线1W 模块链路实时信息及灌包见下图。

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2dBi+5dBi 天线10W 模块链路实时信息及灌包见下图 
 
  
5dBi+5dBi 天线10W 模块链路实时信息及灌包见下图