Microwave routes (Ushiku)

Original: Ryota / JJ1WTL — 521173162 · Original Japanese HTML

Published: 2026-07-20T17:44:00+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.


Part three of the search for High Bar Communications’ northward route.

Just back from KANHAM, I decided not to overdo it and checked nearby Ushiku, shown in red in the diagram.

Image 1: 20260720map-hbc-northern-route.jpg


Desk research

High ground where a station might be placed

Looking at Ushiku’s terrain, the eastern edge of the city looks promising. [GSI map: custom colour-coded elevation map.]

That also agrees with the bearing measured from Inzai.

Image 2: 20260720map-height.jpg

The bearing from Inzai

Looking from Inzai, it was northeast.

Image 3: 20260711achievement.jpg

Correction: Omitama’s position was wrong in this diagram. Sorry.

The plan

I located the towers in this area in advance using Street View.

I will visit them in sequence.

Image 4: 20260720map-plan.jpg

The leading candidate is tower c, a triangular tower with two circular platforms.


To Ushiku

Monday, July 20, a public holiday. Timing the journey to catch the first bus.

Tamachi 5:53 → Ueno 6:09 / 6:31 → Hitachino-Ushiku 07:26.

Inashiki Area Regional Bus: Hitachino-Ushiku Station 7:55 → Tsukuba-Minami Okuhara Industrial Park Central 8:24.

Tamachi. Jumping aboard.

Image 5: 20260720iki-tamachi.jpg

Construction of the new Haneda line.

A set of points has been placed on the third track from the back. Click to enlarge.

For trains to and from Haneda, the branch towards the back will descend underground. Excavation has not started yet.

Image 6: 20260720iki-haneda.jpg

Ueno.

Image 7: 20260720iki-ueno.jpg

Arrived. The station building spans the tracks. Checking every tower in sight.

Not being able to see a tower with dishes from the station is a good sign: evidence that my reading of the situation is right.

Image 8: 20260720view-eki1.jpg

Image 9: 20260720view-eki2.jpg

The exterior of Banpaku-Chuo Station. Impressive.

Image 10: 20260720iki-hitachino-ushiku-building.jpg

The bus has arrived.

Image 11: 20260720iki-hitachino-ushiku-bus.jpg

Checking from the bus window too!

A brief stop at Okuno Lifelong Learning Centre. Adjusting to the timetable, perhaps?

This was g, as I confirmed after getting home.

Image 12: 20260720view-bus1.jpg

The one visible on the opposite side was f.

Image 13: 20260720view-bus2.jpg

Arrived: Tsukuba-Minami Okuhara Industrial Park Central.

Image 14: 20260720iki-kogyodanchi-chuo-bs.jpg


Tower a

Visible between the factories.

A miss.

So I abandon the approach and head north, directly towards the group of towers b and c.

Image 15: 20260720tower-a.jpg

Tower c

The leading candidate comes into view… Wrong guess. orz

Image 16: 20260720tower-c1.jpg

Since I am here, I approach anyway.

Image 17: 20260720tower-c3.jpg

The station name is unknown.

Image 18: 20260720tower-c2.jpg

Tower b

Right next to c. This is not it either.

Image 19: 20260720tower-b.jpg

After going back south and rechecking tower a, I activate Plan B.

West towards d and e.

Tower d

Approaching… Oh?

Image 20: 20260720tower-d1.jpg

This is it!!!

Image 21: 20260720tower-d2.jpg

Look. Some of the following photographs can be enlarged by clicking.

Image 22: 20260720tower-d-approach.jpg

Straight in without hesitation.

Image 23: 20260720tower-d-path.jpg


Ushiku Katsuracho station (provisional name): the whole picture

Enjoy.

The place name is pronounced Katsuracho.

The whole site

The overall view.

Image 24: 20260720tower-d-view.jpg

Ground-level equipment.

Image 25: 20260720tower-d-facility.jpg

The tower.

Image 26: 20260720tower-d-tower.jpg

HBC’s leased portion. The same arrangement as the other stations in this series.

Image 27: 20260720tower-d-lot.jpg

A new gate has been installed.

Image 28: 20260720tower-d-door.jpg

A familiar-looking rack.

Operating under the blazing sun, with extremely loud fans.

Image 29: 20260720tower-d-rack.jpg

Dishes

Capturing both link directions.

Image 30: 20260720tower-d-ant.jpg

The right-hand antenna, facing northeast towards the still-unidentified Omitama station.

Image 31: 20260720tower-d-ant-omitama.jpg

The left-hand antenna, facing southwest towards Inzai.

The Inzai end also uses space diversity, so that fits.

Image 32: 20260720tower-d-ant-inzai.jpg

Identification labels

JTOWER’s ID.

Image 33: 20260720tower-d-jtower-id.jpg

Its site name.

Image 34: 20260720tower-d-jtower-name.jpg

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

Image 35: 20260720tower-hbc-name.jpg

Its Site ID. (Sawajiri: TP2024; Hokota Minowa: TP2031.)

Image 36: 20260720tower-d-hbc-id.jpg

Bearings towards the next hops

Northeast: towards Omitama.

Image 37: 20260720tower-d-direction-ne.jpg

Image 38: 20260720tower-d-compass-ne.jpg

Southwest: towards Inzai.

Image 39: 20260720tower-d-direction-sw.jpg

Image 40: 20260720tower-d-compass-sw.jpg


TEPCO Tsukuba-Minami Substation

I should at least mention it rather than passing it by.

Looking from the east.

Image 41: DSC02282.JPG


Tower e

We no longer need this one.

The station beside the Ami-Higashi interchange.

It is increasingly turning into Laputa [becoming overgrown, like the castle in the film].

Image 42: 20260720tower-e.jpg

There are two ways out from the Hitachi Plateau here: via Ushiku Daibutsu or Ami Premium Outlets.

I head for the outlets, where there is an 11:00 bus.


Heading home

Ami Outlets 11:00 → Arakawaoki Station East Exit 11:21.

Arakawaoki 11:40 → Shimbashi 12:52 / 12:57 → Tamachi 13:00.

Spotted a water-level sensor.

Image 43: 20260720sensor-river.jpg

Ami Outlets.

Reached the outlets at 10:54. Just in time.

Image 44: 20260720kaeri-ami.jpg

Ushiku Daibutsu.

Image 45: 20260720daibutsu.jpg

Tokyo Gas’s Ami station.

Image 46: 20260720togas-ami.jpg

Arakawaoki. Here I am again, for the first time since searching for the Tokyo Gas route.

Image 47: 20260720kaeri-arakawaoki-building.jpg

Leaving Arakawaoki.

Image 48: 20260720kaeri-arakawaoki.jpg

Shimbashi.

Image 49: 20260720kaeri-shimbashi.jpg

Expenses

¥1,221 — JR, Tamachi → Hitachino-Ushiku

¥620 — Inashiki Area Regional Bus, Hitachino-Ushiku Station → Tsukuba-Minami Okuhara Industrial Park Central

¥590 — Kanto Railway bus, Ami Outlets → Arakawaoki Station East Exit

¥1,221 — JR, Arakawaoki → Tamachi

――――――――――――――

¥3,652 — total


Summary

Ushiku station identified:

https://www.google.com/maps/place/@35.9722639,140.2530931,52m/data=!3m1!1e3

Results to date.

Image 50: 20260720achievement.jpg

I would like to say we have bracketed Omitama’s location from both sides… but the estimates are rather scattered. orz

The overall picture. Click to enlarge.

Image 51: 20260720low-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)

If you see a JTOWER tower with almost back-to-back dishes, please let me know:

Nagara, Narita, Namegata and Omitama.

[Added July 22] Provisional Omitama location: 36.1508621,140.4117135

[Added July 23] Provisional Namegata location: 36.0982496,140.4911042

To be continued...