匈奴下4字戰書！他每字添一筆嚇走敵

Fei Teng Wireless Technology (FT-RF) is a Taiwan antenna manufacturer. Since our inception in 2001, we have been consistently inventing and improving in order to better understand and respond to the demands of our clients.

By delivering trustworthy design technology and stringent quality control, we have years of award-winning experience in numerous industries and applications such as military, commercial, and citizen frequency bands.

FT-RF specializes in producing:

Military Antennas (Jammer Antenna, Military Horn antenna, Military vehicle antenna, Antenna Telescope Mast, Marine, Panel, Log Periodic antenna, Gooseneck, Whip, GPS, Connector, Adapter...) Please visit the website: https://military.ft-rf.com.tw/
Outdoor Antenna and Indoor Antenna: Including Lora Antenna, ISM, LPWA antenna (868MHz antenna aka EU868, 915MHz antenna aka US915, 923MHz antenna aka AS923 and others.), 4G LTE antenna, 5G antenna, Wifi Antenna, Multi-Frequency Antenna, UHF antenna..., RF components, Cables and Connectors. We offer a variety of high-performance antennas for Global LoRaWAN applications, including 868 MHz, 915 MHz, 868 MHz, and 923 MHz... Our product line comprises both durable outdoor antennas and indoor high-performance dipole antennas that are suitable for a variety of LoRa applications, including Helium Network support. Please visit the website here: https://ft-rf.com.tw/.
Horn Antenna: RF Microwave Antennas, EMC test equipment (Double Ridged Horn Antenna, Open boundary double ridged horn antenna, Quad Ridged Horn Antenna, Standard Gain Horn antenna, Waveguide to coax Adapter, precision Sleeve Dipole Antenna, Log Periodic Antenna, Antenna Tripod, RF connectors... Please visit the website: https://horn.ft-rf.com.tw/
We provide measurement and calibration Tests, ODM, OEM services for certain products.

We have hundreds of customers from over 60 countries, and to meet their demands, we developed a plant in Vietnam (with a total infrastructure area of 10000 square meters, which includes three major buildings dedicated to operations and production) in addition to the main manufacturing facility in Taiwan. Now, we are focusing on automatic production lines and investing in automation equipment. In the future, we pledge to deliver the highest-quality product in the shortest possible period.

The horn antenna is a broadband passive device, shaped like a pyramid horn, referred to as a TEM antenna, which guides the beam of radio waves at a precise frequency. FT-RF Double Ridged Horn antennas have frequency capabilities ranging from 400MHz to 40GHz depending on type and style. These series are characterized by a huge frequency range and extremely high input powers. With increasing frequency, the gain rises to a maximum of 18 dBi. At higher frequencies, the increased gain compensates for the increasing cable losses.

The advantages of Horn antenna:

- Wide bandwidth: Because the horn antenna has no resonant parts, it can function over a wide range of frequencies.

- Easy waveguide interface: These antennas are very easy to interface to waveguide due to their shape, but they can also be designed with a transition so that a regular coaxial feeder can be used.

- Easy to make, simple design.

The horn is suitable for both transmitting and receiving purposes, especially suitable for EMC and immunity test measurements.

Recommended Accessories

- Antenna Tripod: easy and fast-changing polarisation. 100% stable handling

- SMA Cable: High-quality special SMA cable

大陸中心／綜合報導

▲漢武帝為了打敗匈奴煞費苦心。（示意圖／翻攝自百度百科）

在中國歷史上匈奴侵擾中原王朝邊境長達800年之久，在漢朝，中原政權和匈奴政權之間的鬥爭，幾乎到達了白熱化的階段，這時候的矛盾，是最尖銳的；有一次，匈奴派使臣來給大漢下戰書，內容寫著「天心取米」四個大字，漢武帝和大臣們不知道什麼意思，最後還是漢朝一個小吏何塘破解了此局。

▲匈奴侵擾中原王朝邊境長達800年之久。（示意圖／翻攝自百度百科）

對於戰書上的四個大字「天心取米」到底是什麼意思？滿朝文武百官沒有一個人知道。無奈，漢武帝只好召集天下賢才來破解這一道戰書。後來，京城裡有個官員，叫做何塘，他站在這四個字面前，思索了片刻，然後接下了這一張皇榜，進宮直奔大殿。

▲匈奴給大漢下戰書：「天心取米」，眾臣不解其意，議論紛紛。（示意圖／翻攝自百度百科）

何塘來到大殿以後，漢武帝問何塘「天心取米」到底是什麼意思，他從容不迫地回答說：「依臣之見，天是指天朝，也就是我朝；心，心臟也，也就是指都城；取是指奪取；米，指的是陛下，合起來就是匈奴想要奪取陛下江山，直奔中原的意思。」

漢武帝一聽大怒，正在苦惱怎麼回覆這一封戰書時，何塘又站出來獻劃策了，他對漢武帝說：「陛下不必動怒，微臣有一破解之法。」何塘說完這句話以後，走向這道戰書，然後拿起墨筆，在這四個字天心取米上各添一筆，眾人上前一看，原本的「天心取米」變成了「未必敢來」。

▲在天心取米上各添一筆，原本的「天心取米」變成了「未必敢來」。。（圖／資料照）

朝上文武百官都對這改法讚歎不已，戰書依然是這一封戰書，但是意思卻完全不是原本的意思。他們將這一封戰書，原封不動地送還給了匈奴。其實，匈奴送這封戰書就是為了挫挫大漢的銳氣，以為他們看了以後不敢再貿然進攻匈奴。但沒想到漢武帝不僅不怕，反而還示威了一番。匈奴接到了送回來的戰書，看見這四個字，趕緊撤回了守在邊境的將士。

▲漢武帝在討伐匈奴取得很大的成就。（示意圖／翻攝自百度百科）

不過，後世史學家一看這故事就判斷出是後人杜撰的，而不是真實的歷史情況。因為在漢朝，漢字絕對不是我們現在所使用的字體，而是小篆。按照小篆的寫法，天心取米這四個字，即使每個字加兩筆，也不可能成為未必敢來。

The horn antenna is a broadband passive device, shaped like a pyramid horn, referred to as a TEM antenna, which guides the beam of radio waves at a precise frequency. FT-RF Double Ridged Horn antennas have frequency capabilities ranging from 400MHz to 40GHz depending on type and style. These series are characterized by a huge frequency range and extremely high input powers. With increasing frequency, the gain rises to a maximum of 18 dBi. At higher frequencies, the increased gain compensates for the increasing cable losses.

The advantages of Horn antenna:

- Wide bandwidth: Because the horn antenna has no resonant parts, it can function over a wide range of frequencies.

- Easy waveguide interface: These antennas are very easy to interface to waveguide due to their shape, but they can also be designed with a transition so that a regular coaxial feeder can be used.

- Easy to make, simple design.

The horn is suitable for both transmitting and receiving purposes, especially suitable for EMC and immunity test measurements.

Recommended Accessories

- Antenna Tripod: easy and fast-changing polarisation. 100% stable handling

- SMA Cable: High-quality special SMA cable

但可以知道，當時漢朝與匈奴的矛盾是十分嚴重的，兩方相互較勁，也因此民間才會流傳出許多相關故事。