TECHNICAL WHITEPAPERFIRST GENERATION / FIELD TESTED IN 2025

The Yangtze main stem.
5G in the field.

One journey. A real record of connectivity.

In 2025, LenTack took its first-generation product along the Yangtze to record network performance underway and in everyday use.
From the test environment to measurements along the route, revisit the first generation's field-test journey.

Explore the test data Original PDF (Chinese)

FIELD REPORT / 0012025 EDITION

A river journey, on record.Published download rates

Upper reachChongqing — Yichang66 records

Middle reachYichang — Wuhan86 records

Lower reachWuhan — Toward Nantong139 records

Each vertical line is one published record · Shared 0–700 Mbps scale

Intensive test period: 2025.05.02 — 06.01
Raw measurements: 391 records
Test network: China Mobile / 5G
Archive edition: First generation / 2025

01 / ABOUT THE REPORTWHY WE MEASURE

Connectivity answers.
Found on real voyages.

In 2025, the first-generation product was tested aboard a vessel along the Yangtze. The Yangtze Main Stem 5G Coverage and Speed Field Report records download, upload, latency and jitter during that voyage.

From onboard configuration to measurements along the route, these records document LenTack's first-generation exploration of marine connectivity.

Data comes from first-generation tests in 2025 and reflects the equipment, carrier networks and test conditions at that time.

02 / METHODCONTEXT BEFORE NUMBERS

First, the conditions.
Then, the numbers.

Network performance can differ along the same waterway.
Understanding the test conditions is the starting point for reading the data.

Tested on an actual route

The vessel departed Fengjie in Chongqing, traveled downstream to Nantong in Jiangsu, then returned to Zhongyao Anchorage in Chongqing. Most report data comes from intensive production-unit testing between May 2 and June 1, 2025.

The crew used the network as usual

The original report describes a Mesh setup with one main unit and two satellites: the main AP in the central passage on level three and the second AP in the level-one living room. An average of 11 devices were online each day during testing.

Preserving the original records

The 2025 tests produced 391 raw measurements. The report describes removing duplicates, retaining one valid measurement within 5 km and keeping non-anomalous data at the same location. It publishes 291 records.

Published records include nearby mileage values and repeated place names; 291 records do not mean 291 independent test locations. The 11-device figure is a daily average, not a connection limit.

TEST SETUP

TEST CONFIGURATION AT THE TIME

Communication device: LenTack CH500-I Model name as stated in the original report
Carrier: China Mobile
Access points: TP-Link XDR5430
Network cabling: Cat 6 gigabit Ethernet cable
Test software: Speedtest.cn App
Test phones: iPhone 12 / Huawei Mate 50 / vivo S20
Connection: Dual-band Wi-Fi with a shared network name
Connection distance: Varied / Greater than 5 m

See page 2 of the original report

03 / PUBLISHED DATATHE MEASUREMENTS

Every record.
Ready to revisit.

Browse the upper, middle and lower reaches, or search for a familiar location.

291published records
Original report, pages 4–19

Selected records291 records

Median download207.07 Mbps

Download range2.44 — 669.97 Mbps

Statistics use the selected published 2025 records without route-distance weighting. They do not represent river coverage.

All 291 records

Scroll horizontally to view all fields

Published 2025 Yangtze Main Stem 5G field data. Mileage follows the original report and is counted separately for each reach.
Location / Reach	Mileage km	Download Mbps	Upload Mbps	Idle latency ms	Jitter ms	Source
Zhongyao AnchorageUpper reach	648	360.71	39.46	19	13.11	P.04 ↗
TongluoxiaUpper reach	643	320.72	56.81	19	12.01	P.04 ↗
BanjieliangUpper reach	640	66.56	60.39	31	18.89	P.04 ↗
DabaziUpper reach	634	196.91	54.25	20	10.67	P.04 ↗
YujiatuoUpper reach	627	427.34	57.84	20	8.33	P.04 ↗
JuntianbaUpper reach	570	158.05	65.98	23	16.78	P.04 ↗
YangduUpper reach	561	370.99	59.84	20	15.11	P.04 ↗
MaojiaoxiUpper reach	546	532.09	21.09	26	11.11	P.04 ↗
JuziliangUpper reach	539	218.45	50.41	24	10.89	P.04 ↗
HanjiatuoUpper reach	530	273.76	55.37	35	15.89	P.04 ↗
QingxiUpper reach	524	129.87	33.11	34	26.89	P.04 ↗
ZhenxiUpper reach	512	309.52	46.25	22	11.56	P.04 ↗
LusipanUpper reach	505	74.35	63.28	24	14.78	P.04 ↗
PangxietuoUpper reach	491	211.04	30.68	38	18.89	P.04 ↗
Fengdu Second Yangtze BridgeUpper reach	485	150.87	48.01	27	11.89	P.04 ↗
Fengdu Ghost CityUpper reach	481	59.13	51.45	36	16.11	P.04 ↗
Xingyi TownUpper reach	470	295.76	58.72	30	12.33	P.04 ↗
HuanglinmiaoUpper reach	451	51.14	71.11	31	20.67	P.04 ↗
Zhongxian TangtubaUpper reach	436	240.57	50.65	34	21.67	P.05 ↗
Zhongxian BridgeUpper reach	420	353.02	71.91	34	14.89	P.05 ↗
Shizhu PingshiliangUpper reach	409	452.13	64.31	35	12.56	P.05 ↗
Wanzhou Wanda PlazaUpper reach	332	308.21	66.23	35	19.78	P.05 ↗
HouzishiUpper reach	325	379.89	63.03	28	13.67	P.05 ↗
DazhouUpper reach	315	669.97	55.92	29	17.33	P.05 ↗
HeishipanUpper reach	307	83.02	67.51	28	11.78	P.05 ↗
Yunyang ShizishiUpper reach	299	81.63	40.91	29	15.22	P.05 ↗
Yunyang New TownUpper reach	290	200.09	47.22	26	19.22	P.05 ↗
Yunyang Heniu ShipyardUpper reach	284	184.29	64.63	28	11.78	P.05 ↗
Yunyang Waterway OfficeUpper reach	282	50.43	67.35	28	29.89	P.05 ↗
Yunyang Waterway OfficeUpper reach	281	21.28	1.33	35	45.67	P.05 ↗
Yunyang SanbaxiUpper reach	279	29.95	17.89	34	22.11	P.05 ↗
YaojiagouUpper reach	266	90.97	66.63	26	13.01	P.05 ↗
Guling Passenger PontoonUpper reach	254	45.36	60.33	27	15.44	P.05 ↗
GulingUpper reach	250	58.99	62.31	25	19.67	P.05 ↗
Fengjie LijiazuiUpper reach	243	84.56	31.47	32	17.01	P.05 ↗
Fengjie QingyanziUpper reach	233	105.84	57.94	29	20.33	P.05 ↗
Fengjie New TownUpper reach	221	155.39	39.46	36	16.01	P.05 ↗
Fengjie AnchorageUpper reach	210	277.85	64.12	25	18.33	P.05 ↗
Fengjie BaidichengUpper reach	205	213.42	62.71	30	13.56	P.05 ↗
Top of the Three GorgesUpper reach	197	142.98	28.52	36	20.44	P.06 ↗
Fengjie Daxi TownshipUpper reach	195	482.24	40.02	37	40.56	P.06 ↗
Wushan HongchuantuoUpper reach	188	70.24	58.63	33	19.44	P.06 ↗
Wushan Waterway OfficeUpper reach	184	288.44	38.82	48	35.22	P.06 ↗
Wushan MingyueshanUpper reach	181	345.73	67.91	43	19.33	P.06 ↗
Wushan Shanmutuo AnchorageUpper reach	178	65.57	63.52	32	13.33	P.06 ↗
Wushan LujiazuiUpper reach	174	289.38	28.68	27	20.44	P.06 ↗
Daning River MouthUpper reach	169	269.12	50.24	28	21.22	P.06 ↗
Wushan WangyemiaoUpper reach	160	3.14	33.33	40	38.78	P.06 ↗
Wushan ShennvfengUpper reach	157	25.41	24.92	38	18.22	P.06 ↗
Wushan ShennvfengUpper reach	156	56.62	23.05	34	18.67	P.06 ↗
Wushan ShennvfengUpper reach	155	88.01	48.88	42	25.78	P.06 ↗
Wushan BaimatanUpper reach	147	117.95	76.22	30	31.33	P.06 ↗
Wushan Wanliu AnchorageUpper reach	140	357.58	53.2	50	14.33	P.06 ↗
BaiheshiUpper reach	130	493.52	70.38	60	34.56	P.06 ↗
Badong BridgeUpper reach	123	438.26	46.02	49	15.01	P.06 ↗
Badong Old TownUpper reach	114	509.58	60.38	50	20.22	P.06 ↗
Zigui QuxiUpper reach	60	345.73	28.76	44	15.67	P.06 ↗
Three Gorges Dam (restricted zone)Upper reach	50	158.14	38.42	45	19.44	P.06 ↗
Three Gorges Dam (before the gate)Upper reach	45	305.26	44.09	57	22.56	P.06 ↗
Three Gorges Dam (lock chamber)Upper reach	44	473.63	68.83	54	17.33	P.06 ↗
Three Gorges Dam (lock exit)Upper reach	43	398.79	49.61	44	16.78	P.07 ↗
YanxutuoUpper reach	30	513.59	63.03	38	12.78	P.07 ↗
XiaopingshanbaUpper reach	17	435.7	53.2	42	16.22	P.07 ↗
NanjinguanUpper reach	12	475.06	63.08	36	15.56	P.07 ↗
Sanjiang GezhoubaUpper reach	6	513.56	29.87	39	13.44	P.07 ↗
Yichang Zhixi Yangtze BridgeUpper reach	5	290.49	38.82	55	32.01	P.07 ↗
Inspected-vessel areaMiddle reach	617	394.34	51.04	38	31	P.08 ↗
Inspection waiting areaMiddle reach	616	135.05	26.94	49	16.89	P.08 ↗
GulaobeiMiddle reach	610	406.1	49.44	49	14.11	P.08 ↗
Yunchi Deepwater PortMiddle reach	597	507.23	53.12	55	20.89	P.08 ↗
Baiyang TownMiddle reach	585	247.09	26.28	51	21.67	P.08 ↗
Zhicheng AnchorageMiddle reach	572	226.01	55.77	49	15.44	P.08 ↗
Guanzhou TailMiddle reach	560	166.51	42.77	57	19.33	P.08 ↗
Guanzhou Tail Bulk Cargo AnchorageMiddle reach	558	245.52	63.6	49	27.11	P.08 ↗
Guanzhou Tail Oil AnchorageMiddle reach	556	300.38	37.15	52	54.01	P.08 ↗
YaogangMiddle reach	550	317.66	40.42	40	16.56	P.08 ↗
ChangmenxiMiddle reach	542	214.52	43.38	47	27.11	P.08 ↗
Zhijiang XiaojiatiguaiMiddle reach	537	153.39	32.35	48	19.78	P.08 ↗
Zhijiang BridgeMiddle reach	533	196.57	36.75	40	16.11	P.08 ↗
JiangkouMiddle reach	525	241.02	18.77	39	19.11	P.08 ↗
QixingtaiMiddle reach	519	318.05	25.16	40	20.78	P.08 ↗
Dabujie AnchorageMiddle reach	516	26.81	26.66	48	29.22	P.08 ↗
Minwa ShipyardMiddle reach	515	127.55	31.66	45	21.44	P.08 ↗
MayangzhouMiddle reach	500	277.81	22.37	56	27.44	P.09 ↗
MayangzhouMiddle reach	499	333.56	33.95	55	17.22	P.09 ↗
Libu PortMiddle reach	488	157.92	30.83	61	24.44	P.09 ↗
Jingzhou BridgeMiddle reach	481	300.24	40.42	39	16.33	P.09 ↗
Jingzhou LiulinzhouMiddle reach	474	322.53	29.01	42	14.33	P.09 ↗
Jinchengzhou AnchorageMiddle reach	470	5.91	18.89	54	37.33	P.09 ↗
MajiazuiMiddle reach	460	101.37	25.24	30	42.11	P.09 ↗
NanxingzhouMiddle reach	454	54.54	30.75	43	24.22	P.09 ↗
Guanyinsi Yangtze BridgeMiddle reach	450	156.02	54.16	33	15.11	P.09 ↗
Jingzhou Coal Storage WharfMiddle reach	440	226.48	64.78	35	23.67	P.09 ↗
HaoxueMiddle reach	428	65.12	61.92	34	15.01	P.09 ↗
ZhougongtiMiddle reach	420	69.12	56.71	29	56.71	P.09 ↗
DaokouyaoMiddle reach	399	111.15	65.91	42	23.89	P.09 ↗
JiahekouMiddle reach	395	343.94	51.93	36	13.89	P.09 ↗
Shishou BendMiddle reach	390	323.32	40.31	43	14.67	P.09 ↗
Shishou CityMiddle reach	386	343.51	57.12	40	18.89	P.09 ↗
YuweizhouMiddle reach	381	30.69	10.28	47	28.11	P.09 ↗
YuweizhouMiddle reach	380	89.07	63.67	37	15.33	P.09 ↗
Shishou BridgeMiddle reach	376	9.74	23.17	50	28.44	P.09 ↗
NianziwanMiddle reach	368	5.51	25.05	96	354.44	P.09 ↗
NianziwanMiddle reach	367	29.82	29.41	43	50.67	P.09 ↗
NianziwanMiddle reach	365	28.01	53.05	34	17.56	P.10 ↗
TiaoguanMiddle reach	357	18.93	23.17	42	27.56	P.10 ↗
Tiaoguan AnchorageMiddle reach	347	91.81	39.71	34	17.11	P.10 ↗
BashizhangMiddle reach	345	46.66	34.72	50	65.56	P.10 ↗
WaidaochaMiddle reach	336	78.84	61.67	41	20.33	P.10 ↗
TashiyiMiddle reach	326	309.77	65.11	60	20.89	P.10 ↗
Jiangzhou Waterway BaseMiddle reach	321	207.15	11.89	31	36.33	P.10 ↗
Jianli Mark 46Middle reach	320	93.82	57.91	46	18.11	P.10 ↗
TaihelingMiddle reach	308	71.58	62.24	59	30.89	P.10 ↗
DamazhouMiddle reach	299	331.69	64.15	59	19.56	P.10 ↗
GuangxingzhouMiddle reach	280	76.56	62.77	61	16.56	P.10 ↗
Chenglingji Power Plant WharfMiddle reach	229	41.89	62.71	63	21.33	P.10 ↗
Daodaoquan Grain WharfMiddle reach	223	260.48	37.79	47	25.89	P.10 ↗
NanyangzhouMiddle reach	215	73.27	58.73	61	21.89	P.10 ↗
Luoshan Xingang AnchorageMiddle reach	207	371.36	21.27	43	24.01	P.10 ↗
HanjiapuMiddle reach	205	16.05	63.43	46	22.44	P.10 ↗
LuoshanMiddle reach	203	57.01	61.49	61	18.11	P.10 ↗
JiepaiMiddle reach	195	83.81	61.12	53	18.01	P.10 ↗
JiepaiMiddle reach	194	70.37	63.92	58	44.56	P.10 ↗
JiepaiMiddle reach	193	36.52	38.82	65	88.11	P.10 ↗
Nanmenzhou HeadMiddle reach	184	119.41	31.94	42	16.78	P.10 ↗
Nanmenzhou HeadMiddle reach	183	92.51	63.12	69	28.44	P.11 ↗
Central NanmenzhouMiddle reach	180	298.78	31.95	44	24.11	P.11 ↗
Chibi Yangtze BridgeMiddle reach	168	417.37	61.13	49	19.44	P.11 ↗
ChibishanMiddle reach	163	308.27	67.51	54	33.11	P.11 ↗
LuxikouMiddle reach	155	332.08	30.76	53	23.56	P.11 ↗
LongkouMiddle reach	145	174.61	16.78	55	22.89	P.11 ↗
LongkouMiddle reach	143	193.21	55.04	48	46.33	P.11 ↗
YijitouMiddle reach	132	166.21	38.58	53	34.22	P.11 ↗
FuxingzhouMiddle reach	127	19.13	15.55	63	29.78	P.11 ↗
WangjiaduMiddle reach	124	33.11	26.11	48	35.01	P.11 ↗
YanwoMiddle reach	116	2.77	9.17	61	44.11	P.11 ↗
PanjiawanMiddle reach	114	23.01	39.44	55	55.33	P.11 ↗
PanjiawanMiddle reach	113	325.61	51.38	47	18.56	P.11 ↗
HanjinguanMiddle reach	110	386.32	51.93	46	40.44	P.11 ↗
YongtiezhouMiddle reach	105	343.55	36.19	48	23.22	P.11 ↗
ShangbeizhouMiddle reach	88	239.19	47.57	42	38.44	P.11 ↗
DaxingzhouMiddle reach	75	54.25	54.17	47	81.11	P.11 ↗
ShuihongkouMiddle reach	70	139.42	21.11	42	134.22	P.11 ↗
DengjiakouMiddle reach	60	378.12	54.32	36	11.11	P.11 ↗
DazuiMiddle reach	52	71.69	61.11	42	16.22	P.11 ↗
MeitanzhouMiddle reach	47	469.04	65.51	45	20.33	P.11 ↗
JinkouMiddle reach	40	183.84	19.25	51	46.11	P.12 ↗
HuangshitouMiddle reach	34	176.29	59.52	42	14.11	P.12 ↗
Zhuankou BridgeMiddle reach	23	246.05	58.32	38	24.33	P.12 ↗
Zhuankou Power PylonMiddle reach	15	228.96	65.51	44	64.22	P.12 ↗
Baishazhou BridgeMiddle reach	11	285.93	50.41	36	27.33	P.12 ↗
Yingwuzhou BridgeMiddle reach	4	241.26	64.71	52	23.11	P.12 ↗
Hanjiang River MouthLower reach	1043	215.33	50.73	36	24.22	P.13 ↗
Erqi BridgeLower reach	1035	207.95	55.36	40	20.22	P.13 ↗
TianxingzhouLower reach	1029	410.58	60.39	40	14.89	P.13 ↗
Wangjiawu AnchorageLower reach	1020	184.12	41.22	36	32.89	P.13 ↗
Yangluo BridgeLower reach	1009	261.66	67.12	42	26.56	P.13 ↗
Baihushan Fuel StationLower reach	1001	70.35	21.17	40	38.33	P.13 ↗
Shuangliu ShipyardLower reach	990	195.15	55.44	35	31.01	P.13 ↗
XihepuLower reach	970	217.38	35.55	43	16.33	P.13 ↗
Huanggang BridgeLower reach	965	194.08	22.77	43	18.67	P.13 ↗
ShazhouLower reach	954	148.89	25.56	41	17.89	P.13 ↗
GuanyingeLower reach	949	319.77	69.34	41	21.22	P.13 ↗
WuzhanggangLower reach	942	277.31	63.51	39	19.33	P.13 ↗
LiufuwanLower reach	937	145.29	50.33	40	19.56	P.13 ↗
Daizhi Upper MouthLower reach	932	70.67	78.69	42	17.33	P.13 ↗
Central DaizhiLower reach	924	124.08	71.18	39	13.22	P.13 ↗
Huangshi BridgeLower reach	915	165.39	47.53	38	47.33	P.13 ↗
XisaishanLower reach	906	151.29	51.52	41	30.22	P.13 ↗
DaoshifuLower reach	897	172.79	55.93	47	24.01	P.14 ↗
QipanzhouLower reach	889	435.67	67.51	35	23.44	P.14 ↗
Huaxin Cement PlantLower reach	885	244.79	31.56	38	16.67	P.14 ↗
Huaxin Cement PlantLower reach	884	40.34	63.51	48	102.01	P.14 ↗
DiaoyutaiLower reach	875	23.91	64.31	43	21.89	P.14 ↗
GepaijiLower reach	865	30.48	63.91	45	72.67	P.14 ↗
XianpengzuiLower reach	859	144.52	21.57	36	15.89	P.14 ↗
BanbishanLower reach	855	180.86	35.78	36	16.01	P.14 ↗
PantangLower reach	851	123.98	17.98	44	1656	P.14 ↗
PantangLower reach	849	215.41	45.22	42	14.78	P.14 ↗
Wuxue Zhenhang WharfLower reach	842	244.58	41.78	39	18.44	P.14 ↗
Wuxue Maritime WharfLower reach	840	28.73	64.99	67	83.22	P.14 ↗
Wuxue Urban AreaLower reach	838	220.27	39.15	58	21.44	P.14 ↗
HuoyanshanLower reach	832	280.85	50.97	44	14.56	P.14 ↗
XinzhouLower reach	826	293.67	33.15	54	18.11	P.14 ↗
Jiujiang No. 5Lower reach	815	345.81	8.39	56	24.67	P.14 ↗
Jiujiang No. 1Lower reach	811	395.89	66.29	40	27.56	P.14 ↗
Jiujiang Yangtze Railway BridgeLower reach	806	133.22	43.54	58	20.67	P.14 ↗
Jiujiang Yangtze BridgeLower reach	801	41.01	69.91	38	17.33	P.14 ↗
Jiujiang Second Yangtze BridgeLower reach	799	216.37	42.73	39	13.44	P.14 ↗
Jiujiang Port Authority WharfLower reach	795	370.96	63.91	60	18.67	P.14 ↗
Jiujiang BridgeLower reach	790	388.07	65.11	39	15.78	P.15 ↗
Jiujiang BridgeLower reach	789	237.57	54.32	59	17.33	P.15 ↗
ZhangnanLower reach	784	317.73	40.19	41	17.44	P.15 ↗
Xinyou AnchorageLower reach	781	337.07	48.33	55	19.22	P.15 ↗
Zhangnan No. 7Lower reach	775	202.87	55.52	60	238.33	P.15 ↗
Balijiang River MouthLower reach	765	325.64	46.34	62	21.67	P.15 ↗
ZhoujiawanLower reach	740	37.75	62.31	47	20.56	P.15 ↗
Huayang River MouthLower reach	703	402.32	65.99	52	38.33	P.15 ↗
Wangdong BridgeLower reach	699	424.52	44.34	44	30.44	P.15 ↗
DongliuLower reach	689	221.94	39.54	43	13.44	P.15 ↗
Dongliu Changhang Public Security WharfLower reach	679	439.72	44.16	55	21.01	P.15 ↗
JiyangjiLower reach	668	40.01	63.11	43	26.11	P.15 ↗
Anqing Guanzhou Upper MouthLower reach	663	479.03	33.56	42	21.33	P.15 ↗
Central Anqing GuanzhouLower reach	660	226.17	17.22	48	17.22	P.15 ↗
Anqing Guanzhou Lower MouthLower reach	655	74.41	69.18	39	23.44	P.15 ↗
YangjiataoLower reach	648	46.61	77.11	56	19.56	P.15 ↗
YangjiataoLower reach	647	278.77	49.53	43	21.11	P.15 ↗
Anqing Yangtze BridgeLower reach	639	474.25	61.94	38	18.89	P.15 ↗
Renjiadun Fuel StationLower reach	634	453.95	66.55	40	19.01	P.15 ↗
Mawo PortLower reach	630	366.15	42.97	39	16.56	P.15 ↗
Anqing No. 2Lower reach	623	219.87	66.31	58	83.44	P.15 ↗
QianjiangzuiLower reach	620	167.27	33.95	48	20.67	P.16 ↗
TaizijiLower reach	611	57.21	65.92	54	18.67	P.16 ↗
TaizijiLower reach	610	192.58	29.96	50	23.11	P.16 ↗
TaizishanLower reach	604	254.14	43.53	53	44.44	P.16 ↗
Zongyang Sanjiangkou AnchorageLower reach	600	427.24	52.73	47	18.89	P.16 ↗
Chizhou BridgeLower reach	596	44.03	51.14	54	48.89	P.16 ↗
Chizhou BridgeLower reach	595	334.32	79.49	50	20.67	P.16 ↗
Chizhou River MouthLower reach	579	252.22	47.93	46	28.89	P.16 ↗
Chizhou Nizhou AnchorageLower reach	576	245.21	56.32	51	38.78	P.16 ↗
Chizhou Nizhou AnchorageLower reach	575	235.29	38.35	45	254.11	P.16 ↗
MeigengLower reach	566	473.28	68.69	46	21.11	P.16 ↗
MeigengLower reach	565	279.51	70.71	51	21.89	P.16 ↗
Tiebanzhou HeadLower reach	556	391.29	53.52	49	19.67	P.16 ↗
Tongling BridgeLower reach	551	316.2	64.3	50	21.78	P.16 ↗
Tongling BridgeLower reach	549	452.95	63.11	50	18.78	P.16 ↗
TuqiaoLower reach	540	173.06	16.39	48	26.44	P.16 ↗
HamajiLower reach	530	328.11	33.55	54	22.11	P.16 ↗
LiujiaduLower reach	518	250.11	16.39	51	21.56	P.16 ↗
Tongling New PortLower reach	510	42.29	66.31	34	17.67	P.16 ↗
Tongling Road–Rail BridgeLower reach	495	2.76	21.97	53	94.11	P.16 ↗
DigangLower reach	492	34.71	65.11	52	22.44	P.16 ↗
Wuhu Second BridgeLower reach	471	92.41	58.48	50	24.67	P.17 ↗
Sanshan AnchorageLower reach	465	6.78	48.89	55	80.44	P.17 ↗
Baimaosha Fuel StationLower reach	456	13.61	51.93	57	22.56	P.17 ↗
Baimaosha Fuel StationLower reach	454	2.44	22.78	48	83.78	P.17 ↗
Wuhu DaguaiLower reach	446	184.21	25.16	43	15.01	P.17 ↗
Wuhu BridgeLower reach	437	176.71	34.75	45	18.01	P.17 ↗
SiheshanLower reach	432	238.67	39.16	44	16.56	P.17 ↗
Wuhu Joint Inspection AnchorageLower reach	429	272.64	49.93	48	31.33	P.17 ↗
Wuhu Joint Inspection AnchorageLower reach	423	274.57	46.34	48	19.01	P.17 ↗
Zhengpu AnchorageLower reach	418	58.92	63.91	58	26.78	P.17 ↗
TaipingfuLower reach	406	60.98	62.31	55	45.11	P.17 ↗
Ma'anshanLower reach	402	36.22	61.61	52	19.44	P.17 ↗
Ma'anshanLower reach	401	4.31	48.33	59	190.22	P.17 ↗
Ma'anshanLower reach	398	315.62	62.71	50	25.22	P.17 ↗
Ma'anshanLower reach	397	135.45	57.11	47	34.33	P.17 ↗
Buoy 157Lower reach	389	235.39	52.96	40	12.78	P.17 ↗
Buoy 156Lower reach	386	81.41	58.39	55	19.89	P.17 ↗
ZimuzhouLower reach	378	317.98	62.55	45	14.33	P.17 ↗
Wujiang Lower MouthLower reach	377	213.14	20.51	48	45.56	P.17 ↗
Qiba Fuel StationLower reach	375	130.11	44.98	39	20.01	P.17 ↗
Nanjing Jiangxinzhou BridgeLower reach	358	291.19	62.71	34	11.01	P.17 ↗
Nanjing MeizizhouLower reach	350	213.01	43.93	46	28.01	P.18 ↗
Nanjing Second BridgeLower reach	337	78.16	23.33	35	30.33	P.18 ↗
XinshengweiLower reach	334	207.07	52.57	37	14.22	P.18 ↗
XinshengweiLower reach	333	213.01	43.93	46	28.01	P.18 ↗
Nanjing XibaLower reach	320	298.84	61.52	40	17.01	P.18 ↗
Nanjing Longtan PortLower reach	306	156.07	40.91	41	27.67	P.18 ↗
LongmenkouLower reach	284	237.86	29.16	44	20.78	P.18 ↗
Dingyizhou AnchorageLower reach	273	30.08	45.28	157	77.67	P.18 ↗
Dingyizhou AnchorageLower reach	270	60.14	64.16	47	18.33	P.18 ↗
Liuwei River MouthLower reach	266	164.18	41.34	48	22.33	P.18 ↗
Liuwei River MouthLower reach	264	51.89	34.44	72	26.11	P.18 ↗
YingongzhouLower reach	256	254.42	23.97	54	16.22	P.18 ↗
DagangLower reach	255	106.53	24.76	48	19.78	P.18 ↗
Dagang AnchorageLower reach	248	188.23	26.36	47	29.56	P.18 ↗
Yangzhong First Bridge No. 3 Company WharfLower reach	240	203.45	44.34	47	43.33	P.18 ↗
Sanjiangying River MouthLower reach	234	157.98	42.91	44	13.56	P.18 ↗
Zhenjiang Dangerous Goods AnchorageLower reach	230	114.22	31.95	58	26.11	P.18 ↗
Yangtze Buoy 90Lower reach	225	81.47	32.61	54	52.22	P.18 ↗
Taizhou Temporary AnchorageLower reach	223	180.65	49.37	50	22.78	P.18 ↗
GaogangLower reach	216	220.68	27.96	44	32.56	P.18 ↗
Taizhou BridgeLower reach	211	2.87	26.66	52	33.44	P.18 ↗
Taizhou Taidian WharfLower reach	206	158.36	35.31	55	84.67	P.19 ↗
TaixingangLower reach	199	284.34	59.35	58	21.89	P.19 ↗
Port and starboard buoys 79Lower reach	195	147.16	34.35	48	41.44	P.19 ↗
Changzhou AnchorageLower reach	189	320.44	58.08	49	70.11	P.19 ↗
QiweiLower reach	181	186.21	41.15	50	27.44	P.19 ↗
JiuweiLower reach	178	149.86	48.33	49	39.67	P.19 ↗
JiagangLower reach	170	174.85	38.42	45	20.33	P.19 ↗
Jiangyin AnchorageLower reach	162	273.26	41.14	53	22.67	P.19 ↗
Jiangyin COFCO WharfLower reach	150	359.31	55.92	49	17.33	P.19 ↗
Jingjiang Xintiandi WharfLower reach	146	86.82	37.15	58	46.78	P.19 ↗
Yangzijiang Port WharfLower reach	144	231.35	61.92	45	25.22	P.19 ↗
Xinhua PortLower reach	142	211.31	14.44	64	24.22	P.19 ↗
Zhanghuanggang River MouthLower reach	138	171.78	66.71	48	23.67	P.19 ↗
Jingjiang Shuangjiang PortLower reach	135	252.54	65.91	44	14.44	P.19 ↗
Zhanghuanggang AnchorageLower reach	131	268.59	29.4	61	20.22	P.19 ↗
Zhanghuanggang AnchorageLower reach	130	464.64	63.91	48	16.44	P.19 ↗
fb06 Changyuan Steel WharfLower reach	129	389.22	55.76	55	28.78	P.19 ↗

Reaches and mileage follow the original report; mileage from different reaches cannot be added directly. The original lower-reach chapter is titled “Wuhan to Shanghai,” while the method records travel downstream to Nantong. Place names are romanized from the original; duplicate records and unusual values are retained. Use each row's page reference to check the Chinese original.

04 / READING THE DATABEYOND A SINGLE NUMBER

A good connection.
More than one speed.

Read transfer rates, response and variability together
for a fuller picture of each measurement.

01 / DOWNLOADDownload rate: The rate at which data is received from the network, relevant to downloading files and streaming video.
02 / UPLOADUpload rate: The rate at which data is sent to the network, relevant to uploading files and sending videos.
03 / LATENCYIdle latency: The time for a round trip to the server while the network is idle, recorded in milliseconds.
04 / JITTERJitter: Variation in latency. Values follow the definitions used by the testing tool and report at the time.

Mbps ÷ 8 ≈ MB/sFor example, 100 Mbps is theoretically about 12.5 MB/s. Actual transfers also depend on protocol overhead, the server and network conditions.

Test time, weather, network load, carrier policies and server state can all affect results. See pages 2–3 of the original report for the full method.

05 / ORIGINAL MATERIALSKEPT FOR THE RECORD

Keep the original records.
Remember the journey.

The 2025 report and route chart
document the first generation's field-test journey.

Original Chinese cover of the 2025 Yangtze Main Stem 5G Coverage and Speed Field Report, retaining the historical LinkStation mark

20 PAGES

01 / COMPLETE REPORTPDF · 1.3 MB

Yangtze Main Stem 5G Coverage
and Speed Field Report

The original Chinese 2025 edition, with its method, metric definitions and all published tables preserved.

Download original PDF (Chinese)

Historical Chinese chart of measured Yangtze base-station signals, with route and speed bars

Historical route chart · Detail preview

02 / IMAGE ARCHIVE2025

Place the records
back on the route.

The original Chinese signal distribution chart is preserved. Its geographic scope and labels follow the historical version.

View full chart (Chinese)

KEEP EXPLORING / FIRST GENERATION

The Yangtze main stem.
5G in the field.

Connectivity answers.
Found on real voyages.

First, the conditions.
Then, the numbers.

Tested on an actual route

The crew used the network as usual

Preserving the original records

TEST CONFIGURATION AT THE TIME

Every record.
Ready to revisit.

A good connection.
More than one speed.

Keep the original records.
Remember the journey.

Yangtze Main Stem 5G Coverage
and Speed Field Report

Place the records
back on the route.

First-generation LS500 Long Voyage

Hardware

The Yangtze main stem.5G in the field.

Connectivity answers.Found on real voyages.

First, the conditions.Then, the numbers.

Tested on an actual route

The crew used the network as usual

Preserving the original records

TEST CONFIGURATION AT THE TIME

Every record.Ready to revisit.

A good connection.More than one speed.

Keep the original records.Remember the journey.

Yangtze Main Stem 5G Coverageand Speed Field Report

Place the recordsback on the route.

First-generation LS500 Long Voyage

The Yangtze main stem.
5G in the field.

Connectivity answers.
Found on real voyages.

First, the conditions.
Then, the numbers.

Every record.
Ready to revisit.

A good connection.
More than one speed.

Keep the original records.
Remember the journey.

Yangtze Main Stem 5G Coverage
and Speed Field Report

Place the records
back on the route.