{"id":3670,"date":"2017-04-08T11:18:00","date_gmt":"2017-04-08T04:18:00","guid":{"rendered":"http:\/\/192.168.1.47\/?p=3670"},"modified":"2024-03-27T17:41:46","modified_gmt":"2024-03-27T10:41:46","slug":"do-song-trong-khong-gian-dung-bo-thu-tin-hieu-ky-thuat-so-terratec","status":"publish","type":"post","link":"https:\/\/eplusi.net\/en\/news\/do-song-trong-khong-gian-dung-bo-thu-tin-hieu-ky-thuat-so-terratec\/","title":{"rendered":"\u0110o S\u00f3ng Trong Kh\u00f4ng Gian"},"content":{"rendered":"
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H\u01af\u1edaNG D\u1eaaN \u0110O S\u00d3NG TRONG KH\u00d4NG GIAN D\u00d9NG B\u1ed8 THU T\u00cdN HI\u1ec6U K\u1ef8 THU\u1eacT S\u1ed0 TERRATEC<\/strong><\/span><\/p>

B\u00e0i vi\u1ebft n\u00e0y m\u00ecnh s\u1ebd h\u01b0\u1edbng d\u1eabn m\u1ecdi ng\u01b0\u1eddi c\u00e1ch d\u00f9ng b\u1ed9 thu t\u00edn hi\u1ec7u k\u1ef9 thu\u1eadt s\u1ed1 TERRATEC \u0111\u1ec3 \u0111o s\u00f3ng t\u1ed3n t\u1ea1i trong kh\u00f4ng gian.<\/span><\/p>

I. H\u01af\u1edaNG D\u1eaaN C\u00c0I \u0110\u1eb6T PH\u1ea6N M\u1ec0M SDRSharp<\/strong><\/span><\/p>

Trong file sdr-install<\/strong><\/a> c\u00f3 3 file httpget.exe, install.bat, unzip.exe <\/strong>\u1edf h\u00ecnh 1<\/span><\/p>

\"\"<\/span><\/p>

H\u00ecnh 1<\/span><\/p>

Click double v\u00e0o file install.bat <\/strong>m\u1ed9t c\u1eeda s\u1ed5 l\u1ec7nh cmd \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb ra \u0111\u1ec3 gi\u1ea3i n\u00e9n ph\u1ea7n m\u1ec1m SDRSharp, \u0111\u1ee3i \u0111\u1ebfn khi c\u1eeda s\u1ed5 nh\u01b0 h\u00ecnh 2 \u0111\u01b0\u1ee3c \u0111\u00f3ng l\u1ea1i th\u00ec m\u1ed9t file m\u1edbi sdrsharp \u0111\u01b0\u1ee3c t\u1ea1o ra trong th\u01b0 m\u1ee5c sdr-install nh\u01b0 h\u00ecnh 3.<\/span><\/p>

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H\u00ecnh 2<\/span><\/p>

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H\u00ecnh 3<\/span><\/p>

Trong th\u01b0 m\u1ee5c sdrsharp c\u00f3 file zadig.exe <\/strong>nh\u01b0 \u1edf h\u00ecnh 4, file zadig.exe l\u00e0 file c\u00e0i \u0111\u1eb7t driver cho b\u1ed9 thu KTS TERRATEC . Click double zadig.exe m\u1ed9t giao di\u1ec7n ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c hi\u1ec7n ra nh\u01b0 h\u00ecnh 5.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 4<\/span><\/p>

\"\"<\/p>

H\u00ecnh 5<\/span><\/p>

V\u00e0o Options v\u00e0 ch\u1ecdn List All Devices nh\u01b0 \u1edf h\u00ecnh 6.<\/span><\/p>

\"\"<\/span><\/p>

H\u00ecnh 6<\/span><\/p>

Ti\u1ebfp theo \u1edf tu\u1ef3 ch\u1ecdn Device tr\u00ean giao di\u1ec7n ta ch\u1ecdn USB Receiver (Interface 0) <\/strong>h\u00ecnh 7. Ti\u1ebfp theo nh\u1ea5n n\u00fat Install Driver \u0111\u1ec3 c\u00e0i driver cho TERRATEC h\u00ecnh 8,9.<\/span><\/p>

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H\u00ecnh 7<\/span><\/p>

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H\u00ecnh 8<\/span><\/p>

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H\u00ecnh 9<\/span><\/p>

Khi c\u00e0i driver th\u00e0nh c\u00f4ng ta \u0111\u00f3ng c\u1eeda s\u1ed5 Zadig l\u1ea1i. Ti\u1ebfp theo trong th\u01b0 m\u1ee5c sdrsharp c\u00f3 file SDRSharp.exe <\/strong>h\u00ecnh 10.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 10<\/span><\/p>

Ta click Double v\u00e0o file SDRSharp.exe <\/strong>m\u1ed9t c\u1eeda s\u1ed5 giao di\u1ec7n ph\u1ea7n m\u1ec1m hi\u1ec7n ra \u1edf h\u00ecnh 11, ph\u1ea7n m\u1ec1m n\u00e0y l\u00e0 giao di\u1ec7n ch\u00fang ta s\u1ebd s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o s\u00f3ng trong kh\u00f4ng gian.<\/span><\/p>

\"\"<\/span><\/p>

H\u00ecnh 11<\/span><\/p>

II. H\u01af\u1edaNG S\u1eec D\u1ee4NG \u0110O S\u00d3NG TR\u00caN PH\u1ea6N M\u1ec0M SDRSharp<\/strong><\/span><\/p>

Tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m ch\u00fang ta c\u1ea7n g\u1eafn \u0111\u1ea7u thu TERRATEC v\u00e0o c\u1ed5ng USB c\u1ee7a m\u00e1y t\u00ednh tr\u01b0\u1edbc, khi \u0111\u00f3 ch\u00fang ta m\u1edbi c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c c\u00e1c th\u00f4ng s\u1ed1 tr\u00ean giao di\u1ec7n ph\u1ea7n m\u1ec1m SDRSharp h\u00ecnh 12.<\/strong><\/span><\/p>

\"\"<\/span><\/p>

H\u00ecnh 12<\/span><\/p>

1. Tr\u00ean giao di\u1ec7n ph\u1ea7n m\u1ec1m SDRSharp ta ch\u1ec9nh l\u1ea1i c\u00e1c th\u00f4ng s\u1ed1 theo c\u00e1c h\u00ecnh sau:<\/strong><\/span><\/p>

– \u0110\u1ea7u ti\u00ean ta ch\u1ecdn t\u00edn hi\u1ec7u nh\u1eadn v\u00e0o l\u00e0 RTL-SDR \/ USB t\u1ee9c l\u00e0 t\u00edn hi\u1ec7u v\u00e0o t\u1eeb b\u1ed9 thu KTS TERRATEC h\u00ecnh 13. Ngo\u00e0i ra c\u00f3 th\u1ec3 ch\u1ecdn t\u00edn hi\u1ec7u v\u00e0o t\u1eeb Card \u00e2m thanh, t\u1eeb ethernet, file *.wav,…<\/span><\/p>

\"\"<\/p>

H\u00ecnh 13<\/span><\/p>

– Ti\u1ebfp theo ta ch\u1ecdn lo\u1ea1i t\u00edn hi\u1ec7u s\u00f3ng radio \u0111\u1ec3 do l\u00e0 WFM v\u00ec s\u00f3ng WFM c\u00f3 kho\u1ea3ng t\u1ea7n s\u1ed1 r\u1ed9ng (v\u1ea5n \u0111\u1ec1 n\u00e0y thu\u1ed9c chuy\u00ean ng\u00e0nh vi\u1ec5n th\u00f4ng), ngo\u00e0i ra c\u00f3 th\u1ec3 ch\u1ecdn c\u00e1c lo\u1ea1i s\u00f3ng radio kh\u00e1c tu\u1ef3 thu\u1ed9c t\u00edn hi\u1ec7u v\u00e0o c\u1ee7a TERRATEC m\u00f4 t\u1ea3 nh\u01b0 h\u00ecnh 14.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 14<\/span><\/p>

– Ti\u1ebfp theo ta ch\u1ecdn b\u0103ng th\u00f4ng l\u1ecdc(Filter bandwidth) v\u00e0 b\u01b0\u1edbc t\u1ea7n s\u1ed1 (Step size) \u1edf tr\u1ee5c ngang c\u1ee7a \u0111\u1ed3 th\u1ecb. \u1ede \u0111\u00e2y ch\u1ecdn Filter bandwidth = 10, Step size =10Khz c\u00e1c th\u00f4ng s\u1ed1 n\u00e0y ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u1ef1 c\u1ea5u h\u00ecnh theo th\u1ef1c t\u1ebf m\u00f4 t\u1ea3 \u1edf h\u00ecnh 15.<\/span><\/p>

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H\u00ecnh 15<\/span><\/p>

– \u1ede ph\u1ea7n hi\u1ec3n th\u1ecb \u0111\u1ed3 th\u1ecb c\u1ee7a s\u1ed1ng ta c\u1ea7n ch\u1ecdn c\u00e1c th\u00f4ng s\u1ed1 zoom, contrast, speed nh\u01b0 h\u00ecnh 16 (theo kinh nghi\u1ec7m th\u1ef1c t\u1ebf) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u00fang ta nh\u00ecn th\u1ea5y r\u00f5 nh\u1ea5t ph\u1ed5 t\u1ea7n c\u1ee7a s\u00f3ng, ngo\u00e0i ra ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 ch\u1ec9nh sao cho d\u1ec5 nh\u00ecn th\u1ea5y nh\u1ea5t.<\/span><\/p>

\"\"<\/span><\/p>

H\u00ecnh 16<\/span><\/p>

– Ti\u1ebfp theo ta ch\u1ecdn t\u1ea7n s\u1ed1 \u0111\u1ec3 \u0111o nh\u01b0 h\u00ecnh 17.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 17<\/span><\/p>

– \u0110\u1ec3 con tr\u1ecf ph\u00eda d\u01b0\u1edbi s\u1ed1 click ch\u1ecdn gi\u1ea3m \u0111\u01a1n v\u1ecb t\u1ea7n s\u1ed1 h\u00ecnh 18, \u0111\u1ec3 con tr\u1ecf ph\u00eda tr\u00ean s\u1ed1 click ch\u1ecdn t\u0103ng \u0111\u01a1n v\u1ecb t\u1ea7n s\u1ed1 h\u00ecnh 19, ta ph\u1ea3i ch\u1ec9nh t\u01b0\u01a1ng t\u1ee5 \u1edf t\u1eebng v\u1ecb tr\u00ed \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c t\u1ea7n s\u1ed1 \u0111o theo mong mu\u1ed1n.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 18<\/span><\/p>

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H\u00ecnh 19<\/span><\/p>

– \u0110\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c nhi\u1ec1u t\u00edn hi\u1ec7u s\u00f3ng trong kh\u00f4ng gian ho\u1eb7c \u0111o nh\u1eefng s\u1ed1ng c\u00f3 t\u00edn hi\u1ec7u y\u1ebfu ta c\u00f3 th\u1ec3 t\u0103ng \u0111\u1ed9 l\u1ee3i RF Gain t\u1eeb -1dB l\u00ean t\u1edbi 42dB tuy nhi\u00ean \u1edf \u0111\u1ed9 l\u1ee3i cao th\u00ec t\u00edn hi\u1ec7u b\u1ecb nhi\u1ec5u v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u s\u00f3ng. Ph\u1ea7n n\u00e0y ng\u01b0\u1eddi d\u00f9ng tu\u1ef3 ch\u1ec9nh sao cho ph\u00f9 h\u1ee3p \u0111\u1ec3 nh\u1eadn s\u00f3ng. H\u00ecnh 20, ta ch\u1ecdn n\u00fat Configure tr\u00ean giao di\u1ec7n ph\u1ea7n m\u1ec1m m\u1ed9t h\u1ed9p tho\u1ea1i RTL-SDR hi\u1ec7n ra ta ch\u1ecdn RF Gain, b\u00ecnh th\u01b0\u1eddng m\u1eb7c \u0111\u1ecbnh -1dB.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 20<\/span><\/p>

– Ngo\u00e0i ra c\u00f2n r\u1ea5t nhi\u1ec1u th\u00f4ng s\u1ed1 kh\u00e1c tr\u00ean giao di\u1ec7n ph\u1ea7n m\u1ec1m ng\u01b0\u1eddi s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u th\u00eam \u0111\u1ec3 ph\u1ee5c v\u1ee5 cho vi\u1ec7c h\u1ecdc t\u00e2p.<\/strong><\/span><\/p>

– D\u1ef1a v\u00e0o t\u00edn hi\u1ec7u s\u00f3ng m\u1ea1nh y\u1ebfu m\u00e0 \u00e2m thanh ph\u00e1t ra tr\u00ean m\u00e1y t\u00edn b\u00e1o hi\u1ec7u.<\/strong><\/span><\/p>

2. H\u01b0\u1edbng d\u1eabn \u0111o m\u1ed9t s\u1ed1 s\u00f3ng trong kh\u00f4ng gian<\/strong><\/span><\/p>

Tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n \u0111o s\u00f3ng b\u00ean d\u01b0\u1edbi b\u1ea1n ph\u1ea3i l\u00e0m qua t\u1ea5t c\u1ea3 c\u00e1c b\u01b0\u1edbc tr\u00ean g\u1eafn b\u1ed9 thu KTS TERRATEC v\u00e0o m\u00e1y t\u00ednh v\u00e0 c\u1ea5u h\u00ecnh nh\u01b0 \u1edf tr\u00ean.<\/span><\/p>

2.1 \u0110o s\u00f3ng t\u1eeb \u0111\u1ea7u \u0111\u1ecdc RFID t\u1ea7n s\u1ed1 13.56Mhz<\/strong><\/span><\/p>

– Ta ch\u1ecdn t\u1ea7n s\u1ed1 \u0111o l\u00e0 13.56Mhz nh\u01b0 h\u00ecnh 21 v\u00e0 nh\u1ea5n n\u00fat Play (Play s\u1ebd chuy\u1ec3n sang Stop khi \u0111\u01b0\u1ee3c nh\u1ea5n xong).<\/span><\/p>

\"\"<\/span><\/p>

H\u00ecnh 21<\/span><\/p>

– Ti\u1ebfp theo ta di chuy\u1ec3n antenna c\u1ee7a TERRATEC \u0111\u1ebfn b\u1ed9 ph\u00e1t s\u00f3ng 13.56Mhz t\u1ee9c \u0111\u1ea7u \u0111\u1ecdc c\u1ee7a RFID h\u00ecnh 22.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 22<\/span><\/p>

– Sau khi \u00e1p antenna c\u1ee7a TERRATEC v\u00e0o RFID Reader ta \u0111\u01b0\u1ee3c m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb k\u1ebft qu\u1ea3 \u0111o s\u00f3ng 13.56Mhz \u1edf RF Gain -1dB. K\u1ebft qu\u1ea3 \u1edf h\u00ecnh 23.<\/span><\/p>

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H\u00ecnh 23<\/span><\/p>

2.2 \u0110o s\u00f3ng di \u0111\u1ed9ng 2G \u1edf t\u1ea7n s\u1ed1 900Mhz v\u00e0 800Mhz <\/strong><\/span><\/p>

– Ta ch\u1ecdn t\u1ea7n s\u1ed1 \u0111o l\u00e0 900Mhz nh\u01b0 h\u00ecnh 24 v\u00e0 nh\u1ea5n n\u00fat Play (Play s\u1ebd chuy\u1ec3n sang Stop khi \u0111\u01b0\u1ee3c nh\u1ea5n xong).<\/span><\/p>

\"\"<\/p>

H\u00ecnh 24<\/span><\/p>

– Ti\u1ebfp theo ta d\u00f9ng \u0111i\u1ec7n tho\u1ea1i g\u1ecdi \u0111\u1ebfn s\u1ed1 900 v\u00e0 \u00e1p v\u00e0o g\u1ea7n antenna nh\u01b0 h\u00ecnh 25.<\/span><\/p>

\"\"<\/span><\/p>

H\u00ecnh 25<\/span><\/p>

– Sau khi \u00e1p \u0111i\u1ec7n tho\u1ea1i v\u00e0o an,tenna c\u1ee7a TERRATEC ta \u0111\u01b0\u1ee3c m\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb k\u1ebft qu\u1ea3 \u0111o s\u00f3ng 900Mhz \u1edf RF Gain -1dB. K\u1ebft qu\u1ea3 \u1edf h\u00ecnh 26.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 26<\/span><\/p>

– T\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u00ean ta ch\u1ecdn \u1edf t\u1ea7n s\u1ed1 800Mhz ta \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 nh\u01b0 h\u00ecnh 27.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 27<\/span><\/p>

2.3 \u0110o s\u00f3ng wifi \u1edf t\u1ea7n s\u1ed1 2.4Ghz<\/strong><\/span><\/p>

– Ta ch\u1ecdn t\u1ea7n s\u1ed1 \u0111o l\u00e0 2.4Ghz (ch\u00ednh x\u00e1c l\u00e0 2,437Ghz \u1edf module \u0111\u01b0\u1ee3c \u0111o, t\u1ea7n s\u1ed1 n\u00e0y ta d\u00f9ng ph\u1ea7n m\u1ec1m Wifi Analyzer tr\u00ean Android \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh) v\u00e0 nh\u1ea5n n\u00fat Play (Play s\u1ebd chuy\u1ec3n sang Stop khi \u0111\u01b0\u1ee3c nh\u1ea5n xong).<\/span><\/p>

– Ti\u1ebfp theo ta di chuy\u1ec3n antenna c\u1ee7a TERRATEC \u0111\u1ebfn b\u1ed9 ph\u00e1t s\u00f3ng wifi \u1edf t\u1ea7n s\u1ed1 2.4Ghz h\u00ecnh 28.<\/span><\/p>

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H\u00ecnh 28<\/span><\/p>

– <\/strong>K\u1ebft qu\u1ea3 nh\u1eadn \u0111\u01b0\u1ee3c nh\u01b0 h\u00ecnh 29.<\/span><\/p>

\"\"<\/p>

H\u00ecnh 29<\/span><\/p>

Ch\u00fa \u00fd \u1edf t\u1ea7n s\u1ed1 2.4Ghz ch\u00fang ta c\u1ea7n ph\u1ea3i ch\u1ec9nh \u0111\u1ed9 l\u1ee3i RF Gain c\u1ee7a antenna TERRATEC l\u00ean cao h\u01a1n -1dB m\u1edbi nh\u1eadn th\u1ea5y t\u00edn hi\u1ec7u s\u00f3ng r\u00f5.<\/span><\/p>

K\u1ebft lu\u1eadn:<\/strong> khi t\u0103ng RF Gain c\u1ee7a b\u1ed9 thu nh\u1eadn th\u1ea5y r\u1eb1ng c\u00f3 r\u1ea5t nhi\u1ec1u s\u00f3ng t\u1ed3n t\u1ea1i trong kh\u00f4ng gian m\u00e0 b\u1ed9 thu c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c.<\/span><\/p>