信号收割者 [科幻短篇] | The Signal Harvester [Sci-Fi Short Story]

陈默的工作是捡垃圾。

正式岗位名称是”无线电频谱遗产研究员”,但她自己的描述更准确:收割正在消失的声音


2051年,全球通讯系统完成了第三次重建。卫星网络、5G基站、旧有的AM/FM广播——三次重建之后,频谱里的大多数遗留信号都已经清零。

但”大多数”不等于”全部”。

有些信号不知道怎么存活下来了。

有些信号来自发射源已经不存在的地方——拆毁的基站、报废的卫星、沉入海底的船只。

理论上它们不应该还在广播。

理论上。


陈默在南太平洋的一个小岛上工作。岛上有一座建于2019年的旧无线电站,在三次重建中被保留下来,原因是”具有历史研究价值”,实际原因是没人在乎到去拆掉它。

她一个人,每天记录频谱异常,把发现的遗留信号归档。

大多数是无意义的杂波。偶尔有值得研究的——一艘1987年沉船的应急信标、一颗1999年发射的通讯卫星、一个还在广播天气预报的自动气象站,它的运营机构已在2038年解散。


第1402天,陈默听到了一个不对的信号。

频率是1539.6 kHz,调幅波,内容是语音。

她把信号录下来,进行解调,听到了一个人的声音:

“今天是2019年3月14日,星期四,下午三点整。我是卡维达,第十二组当班。天气:阴,无风。设备状态:正常。今日无异常情况报告。”

她以为是存档文件泄漏,或者回波效应。

但信号是实时的。

她在那天17:00整理了频谱记录:信号出现时间是当天14:57,北京时间。不是存档,不是回波。


她查了1539.6 kHz的历史使用记录。

这个频率曾属于北极圈第十二号监测站,2021年关闭,设备在2024年清理完毕,站址在2031年因气候变化被海水淹没。

没有任何在役设备应该在这个频率上广播。


第二天,信号再次出现。

还是那个声音,还是那个人:“今天是2019年3月15日,星期五……”

第三天:“今天是2019年3月16日……”

每天如期而至,日期按顺序推进。


陈默向上级汇报了异常。

三周后,技术团队到达。他们测量了信号来源,追踪到北极圈方向的某处,但具体坐标无法确定——那片区域已经是北冰洋海域。

他们没有进一步调查的预算。

他们给信号归档,打上标签:“频率遗留物,来源不明,暂不处理”,然后离开了。


陈默继续监听。

到第300天,信号的日期推进到了2019年的终点——12月31日。

第301天,信号变了。

那个声音说:

“今天是2020年1月1日,新年快乐。卡维达在这里。天气:大雪,气温零下三十七度。”

然后是三秒的停顿。

“我不知道有没有人在听。但如果你在听——我们很好,一切正常。”

陈默把耳机按得更紧了一些。

“我们在等你。”


The Signal Harvester [Sci-Fi Short Story]

Chen Mo’s job is picking up garbage.

Official title: Radio Spectrum Heritage Researcher. Her own description: harvesting disappearing voices.

After three global communications rebuilds, most legacy signals in the spectrum had been cleared. But most is not all.

Some signals don’t know they should be gone. Some come from sources that no longer exist — demolished towers, decommissioned satellites, ships at the bottom of the ocean.

Theoretically, they shouldn’t still be broadcasting.


Chen Mo works alone on a small island in the South Pacific, at an old radio station built in 2019, preserved through three rebuilds because no one cared enough to demolish it.

Most of what she catalogs is meaningless noise. Occasionally something worth noting: a 1987 shipwreck’s emergency beacon, a 1999 communications satellite, an automated weather station still broadcasting forecasts from an agency dissolved in 2038.


On Day 1402, she heard a wrong signal.

Frequency: 1539.6 kHz, amplitude modulation, voice content.

She recorded it, demodulated it, and heard a human voice:

“Today is March 14, 2019, Thursday, 3 PM. This is Kavida, Group 12 on duty. Weather: overcast, no wind. Equipment status: normal. No abnormal incidents to report.”

She assumed it was an archive file bleed or echo effect.

The signal was live.


She checked the usage history for 1539.6 kHz.

That frequency had belonged to Arctic Circle Monitoring Station No. 12, closed 2021, equipment cleared 2024, the station site submerged by rising seas in 2031.

No active equipment should be broadcasting on that frequency.


The signal returned the next day.

Same voice. Same person. “Today is March 15, 2019, Friday…”

Then March 16th. March 17th. Each day appearing on schedule, dates advancing in sequence.


A technical team arrived three weeks after her report. They triangulated the signal source toward the Arctic Circle — somewhere now under the Arctic Ocean. No budget for further investigation.

They archived the signal, labeled it: “Frequency remnant, source unknown, no action required”, and left.


Chen Mo kept listening.

On Day 300, the signal’s dates reached December 31st, 2019.

On Day 301, the signal changed.

The voice said:

“Today is January 1, 2020. Happy New Year. Kavida here. Weather: heavy snow, negative thirty-seven degrees.”

Three seconds of silence.

“I don’t know if anyone is listening. But if you are — we’re fine, everything’s normal.”

Chen Mo pressed her headphones tighter.

“We’re waiting for you.”

Deskless Daily — AI-compiled stories from the edge of tomorrow.



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