Microwave routes (Narita and Nagara)

Original: Ryota / JJ1WTL — 521307766 · Original Japanese HTML

Published: 2026-08-09T22:35:00+09:00

English translation of the archived article text. The author’s first-person observations, uncertainty and later additions are preserved; this is not the research summary. Image contents are preserved as images, not silently incorporated into the translated prose.


The fifth trip in the search for High Bar Communications’ northward route.

This time, the aim is to identify the Narita and Nagara stations, shown in red.

Image 1: 20260808hbc.jpg


Desk research

Preparation is eighty per cent of the job.

Where things stood after the previous trip

So far, I have identified the stations in Hitachinaka, Hokota (two), Omitama, Namegata, Ushiku and Inzai.

Image 2: 20260801achievement.jpg

Narita station

Narrowing down the high ground where a station might be placed. [GSI map: custom colour-coded elevation map.]

Image 3: 20260808narita-height.jpg

With that in mind, I systematically search Google Street View for towers and mark the candidates.

If dishes appear in Street View imagery from March or April, the search is over right there.

Image 4: 20260808narita-targets.jpg

After two or three weeks of lunch breaks working up the above… Huh?

Image 5: 20260808narita-streetview.jpg

https://www.google.com/maps/place/35%C2%B027'47.4%22N+140%C2%B013'33.9%22E/@35.8381591,140.3439731,3a,15y,346.34h,119.94t/data=!3m7!1e1!3m5!1sIEJCevlh0Xf9G2kSanZDtA!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D-29.94055518714245%26panoid%3DIEJCevlh0Xf9G2kSanZDtA%26yaw%3D346.3441676650073!7i16384!8i8192!4m4!3m3!8m2!3d35.463155!4d140.226093

A tower northeast of Kuzumi Station on the Narita Line, marked with a radio-tower symbol on the GSI map:

https://www.google.com/maps/place/@35.8386853,140.3437484,52m/data=!3m1!1e3

The Google car ignored Prefectural Route 115 and took an utterly unexpected route.

And just last month, July.

Thank you for doing that for me.

Let’s make this the provisional location of Narita station.

Plotted on the map, it is at the star.

Image 6: 20260808narita-point.jpg

Nagara station

Since Narita looks as though it can be tackled precisely, I will do Nagara on the same trip.

First, finding the high ground where a station might be placed. [GSI map: custom colour-coded elevation map.]

The area around the highest point, a 173 m triangulation point, looks promising.

Image 7: 20260808nagara-heigt.jpg

There are two stations near the 173 m point.

I should also check the hill to the east, with clear views north and south.

Image 8: 20260808nagara-targets.jpg

The rest is fieldwork!


To Narita

Sunday, August 9.

Tamachi 4:52 → Tokyo 5:00 / 5:21 → Chiba 05:59 / 6:04 → Kuzumi 6:47.

Tamachi. Construction of the new Haneda line. Click to enlarge.

One track will be shifted here from the back.

Image 9: 20260809iki-tamachi-koji.jpg

Tamachi.

Image 10: 20260809iki-tamachi.jpg

Tokyo.

Image 11: 20260809iki-tokyo.jpg

Chiba.

Image 12: 20260809iki-chiba.jpg

Arrived at Kuzumi.

I climb onto the footbridge… It is visible already. You could have told me…

Image 13: 20260809iki-kuzumi-kosenkyo.jpg

Leaving Kuzumi Station.

Image 14: 20260809iki-kuzumi.jpg

For some reason, the Street View imagery along the road running from the back to the right at this junction was updated in July.

Excellent work by the Google car.

Image 15: 20260809iki-kuzumi-kosaten.jpg

Without that, I would probably still be wandering all over Narita.


Narita Hataya station (provisional name): the whole picture

Enjoy.

The place name is pronounced Hataya.

The site

Arrived at 7:03.

The tower, from the east.

Image 16: 20260809narita-tower-east.jpg

Ground-level equipment.

Image 17: 20260809narita-equipment.jpg

The usual rack, chain enclosure and gate.

Image 18: 20260809narita-lot.jpg

Dishes

Capturing both link directions.

The Nagara link also uses space diversity. It is a long way, after all.

Image 19: 20260809narita-parabola.jpg

The right-hand antennas, facing north-northeast towards Kitaura Futayado station. Upper and lower, in that order.

Image 20: 20260809narita-beam-nne-upper.jpg

Image 21: 20260809narita-beam-nne-lower.jpg

The left-hand antennas, facing south-southwest towards Nagara station, not yet identified at this point. Upper and lower, in that order.

Image 22: 20260809narita-beam-ssw-upper.jpg

Image 23: 20260809narita-beam-ssw-lower.jpg

Identification labels

JTOWER’s ID.

Image 24: 20269809narita-id.jpg

Its site name. Image 25: 20269809narita-name.jpg

HBC’s label. (Namegata: J05; Ushiku: J05A; Sawajiri: J06; Hokota Minowa: J07A; Ajigaura: J08.)

Image 26: 20269809narita-hbc-name.jpg

Its Site ID. (Namegata: 2023; Omitama: TP2033; Ushiku: TP2020; Sawajiri: TP2024; Hokota Minowa: TP2031.)

Image 27: 20269809narita-hbc-id.jpg

Bearings towards the next hops

Towards Nagara, still unidentified at this point.

Image 28: 20260809narita-direction-ssw.jpg

South-southwest.

It would be good to narrow it down, but Nagara is a long way away…

Image 29: 20260809narita-compass-ssw.jpg

Moving on. Withdrawing from Kuzumi at 7:20.


To Nagara station

Back at the station. I made a train one or two departures earlier than planned.

Heading to Mobara.

Taking the conventional route: back to Chiba, then out again.

Image 30: 20260809tensen-route.jpg

Kuzumi 7:36 → Chiba 8:27 / 8:34 → Mobara 9:11.

Taxi: Mobara Station West Exit → Yamanogo, Nagara.

Kuzumi.

Both trains arriving simultaneously. Yes, it is a single-track line.

Image 31: 20260809tensen-kuzumi.jpg

The tower is visible from the train window too.

It is also visible from the southern end of the station platform.

Image 32: 20260809tensen-kuzumi-shaso.jpg

Chiba.

Image 33: 20260809tensen-chiba.jpg

Arrived at Mobara.

Image 34: 20260809tensen-mobara.jpg


Nagara: Jtowér GO

Search order

To be thorough, I will check the eastern high ground too: a through h.

If none of these works, I will need to rethink.

Image 35: 20260808nagara-route.jpg

There is over an hour until the bus, so I choose a taxi.

I have it take me to the base of towers a and b. It must be at least 2 km from the bus stop.

Under the Ken-O Expressway, approaching Nagara.

Image 36: 20260809tensen-kenodo.jpg

The surroundings in Yamanogo, Nagara.

Image 37: 20260809tensen-yamanogo.jpg

Starting the checks!

Tower b

A miss. 9:39.

Just south of Kurosu Shokai’s Nagara Environmental Centre.

https://www.google.co.jp/maps/place/@35.4722097,140.2364931,52m/data=!3m1!1e3

Image 38: 20260809nagara-tower-b.jpg

Tower a

A miss. 9:40.

Behind Jujo Gosei.

https://www.google.co.jp/maps/place/@35.4723396,140.2327624,52m/data=!3m1!1e3

Image 39: 20260809nagara-tower-a.jpg

Tower c

Is this MCA’s Kazusa station? 10:01.

https://www.google.co.jp/maps/place/@35.4633135,140.2258233,52m/data=!3m1!1e3

Image 40: 20260809nagara-tower-c1.jpg

Image 41: 20260809nagara-tower-c2.jpg

From farther downhill. This should be easier to see. Click to enlarge.

Image 42: 20260809nagara-tower-c3.jpg

Towers d and e

A miss. 10:19.

The one with the circular platforms is d. It is farther away to the east.

https://www.google.co.jp/maps/@35.4552696,140.2253106,52m/data=!3m1!1e3

https://www.google.co.jp/maps/@35.4558795,140.2248639,52m/data=!3m1!1e3

Image 43: 20260809nagara-tower-de.jpg

Tower f

This is a pole, so expectations were low from the start. 10:31.

Just west of Meiji Golf Centre.

https://www.google.co.jp/maps/@35.4528824,140.2187455,52m/data=!3m1!1e3

Image 44: 20260809nagara-tower-f1.jpg

Its name is SS Yamane.

Image 45: 20260809nagara-tower-f2.jpg

A tower not spotted beforehand

North of the warehouses, on the opposite side of Prefectural Route 14. 10:36.

https://www.google.co.jp/maps/@35.4535526,140.216072,52m/data=!3m1!1e3

Image 46: 20260809nagara-tower-soko.jpg

Tower g

One of the leading candidates.

But there is a hill to its north, so this will not work. 11:00.

East of Taiyo Construction’s Nagara Asphalt Plant.

https://www.google.co.jp/maps/@35.4428789,140.2043296,52m/data=!3m1!1e3

Image 47: 20260809nagara-tower-g1.jpg

Image 48: 20260809nagara-tower-g2.jpg

Image 49: 20260809nagara-tower-g3.jpg

Image 50: 20260809nagara-tower-g4.jpg

Tower h

Apparently this is the Osakabe–Harigaya Forest Road. Heading in. 11:07.

The place name is pronounced Osakabe.

Image 51: 20260809nagara-tower-h1.jpg

This is it! 11:22.

Image 52: 20260809nagara-tower-h2.jpg


Nagara station (provisional name): the whole picture

Enjoy.

Tower h was the relay I was looking for.

The tower

Arrived at 11:23.

The power lines and other services along the forest road also end here, feeding into the site.

Image 53: 20260809nagara-tower.jpg

The location

There are steps between the entrance and the base of the tower.

Beyond that entrance is the familiar rack.

Image 54: 20260809nagara-location.jpg

Dishes

The essential part.

Image 55: 20260809nagara-parabola.jpg

Towards Narita. Close-ups are in upper/lower order.

Image 56: 20260809nagara-direction-narita.jpg

Image 57: 20260809nagara-direction-narita-upper.jpg

Image 58: 20260809nagara-direction-narita-lower.jpg

Towards Inzai. Close-ups are in upper/lower order.

Image 59: 20260809nagara-direction-inzai.jpg

Image 60: 20260809nagara-direction-inzai-upper.jpg

Image 61: 20260809nagara-direction-inzai-lower.jpg

Towards Kamogawa, not yet identified. Close-ups are in upper/lower order.

Image 62: 20260809nagara-direction-kamogawa.jpg

Image 63: 20260809nagara-direction-kamogawa-upper.jpg

Image 64: 20260809nagara-direction-kamogawa-lower.jpg

Identification labels

JTOWER’s ID.

Image 65: 20260809nagara-id.jpg

Its site name.

Image 66: 20260809nagara-name.jpg

HBC’s label. (Narita: J04; Omitama: J06A; Ushiku: J05A; Sawajiri: J06; Hokota Minowa: J07A; Ajigaura: J08.)

Image 67: 20260809nagara-hbc-name.jpg

Its Site ID. (Narita: TP2022; Omitama: TP2033; Ushiku: TP2020; Sawajiri: TP2024; Hokota Minowa: TP2031.)

Image 68: 20260809nagara-hbc-id.jpg

Bearing measurement

Towards Kamogawa… there is a cliff. orz

Image 69: 20260809nagara-circumstances.jpg

So I will try estimating from the side.

Image 70: 20260809-direction.jpg

Southwest by south, perhaps.

Image 71: 20260809nagara-compass.jpg


Homeward, triumphant

Time to go home. Departing at 12:20.

There is a bus in the 13:00 hour, so I head back towards Mobara.

Miss it and the next is in the 16:00 hour.

Another possibility is to head west for a station on the Kominato Railway.

Taiyo Construction, just out of the forest road.

Back at tower g.

Continuing along the road in the back left of the photograph. 12:05. [Translator’s note: this time precedes the 12:20 departure stated above; both are retained as written.]

Image 72: 202608909kaeri-taiyokensetsu.jpg

Frog versus snake.

Image 73: 20260809kaeri-snake_vs_frog.jpg

A break and a wait for the bus at Michi-no-Eki Nagara roadside station. 12:30.

Image 74: 20260809kaeri-michinoeki.jpg

In the end, the station was at the star.

Image 75: 20260809kaeri-michinoeki-map.jpg

A tower just east of Michi-no-Eki Nagara.

https://www.google.co.jp/maps/place/@35.4577856,140.2101844,52m/data=!3m1!1e3

Image 76: 20260809kaeri-michinoeki-tower.jpg

Rokujizo Kyokumae 13:10 → Mobara Station South Exit 13:38.

Mobara 13:47 → Tokyo 15:01 / 15:14 → Tamachi 15:22.

Rokujizo Kyokumae.

Image 77: 20260809kaeri-rokujisokyoku-mae.jpg

Mobara. Lucky: a train straight to Tokyo.

Image 78: 20260809kaeri-mobara.jpg

Tokyo.

Image 79: 20260809kaeri-tokyo.jpg

Expenses

¥1,408 — JR, Tamachi → Kuzumi

¥1,221 — JR, Kuzumi → Mobara

¥4,200 — taxi, Mobara Station → Yamanogo, Nagara

¥580 — Kominato Railway bus, Rokujizo Kyokumae → Mobara Station South Exit

¥1,408 — JR, Mobara → Tamachi

――――――――――――――

¥8,817 — total


Summary

Results to date.

Narita and Nagara stations identified:

Narita station

CV Narita Hataya.

Hataya, Narita. About 860 m northeast of Kuzumi Station.

https://www.google.com/maps/place/@35.8386853,140.3437484,52m/data=!3m1!1e3

Nagara station

CV Nagara.

Nagarayama, Nagara. About 200 m north of Mihariyama Kofun.

https://www.google.co.jp/maps/place/@35.4423885,140.1946426,52m/data=!3m1!1e3

The overall picture. Click to enlarge.

Image 80: 20260809low-latency-microwave-route.jpg

Earlier articles:

‘Microwave routes (Ajigaura and Inzai)’

https://jj1wtl.seesaa.net/article/521035620.html (English translation)

‘Microwave routes (Hokota)’

https://jj1wtl.seesaa.net/article/521116477.html (English translation)

‘Microwave routes (Ushiku)’

https://jj1wtl.seesaa.net/article/521173162.html (English translation)

‘Microwave routes (Omitama and Namegata)’

https://jj1wtl.seesaa.net/article/521245350.html (English translation)

Just one station left:

Image 81: 20260809achievement.jpg

Image 82: 20260809mjk.jpg