http://depositfiles.com/files/jk7zw45ew
Isnin, 7 September 2009
Emag: Reading the datasheets of electronic devices.
http://depositfiles.com/files/jk7zw45ew
Ebook: Antennas for Base Stations in Wireless Communications
Zhi Ning Chen, Kwai-Man Luk "Antennas for Base Stations in Wireless Communications"McGraw-Hill Professional
English
2009-06-02
ISBN: 0071612882
412 pages
5,3 MB
Design Antennas for Modern Wireless Communications Systems
Written by a global team of expert contributors, this book offers complete details on the wide range of antennas used in today's wireless communication networks. Coverage includes the most popular applications in WWAN (GSM, CDMA, and WCDMA), WLAN (Bluetooth and WiFi), WMAN (WiMAX), and WPAN (UWB and RFID).
Antennas for Base Stations in Wireless Communications presents a full picture of modern base station antenna technology--from fundamentals and parameters to engineering and advanced solutions--and highlights new technologies in antenna design with enhanced performance. Real-world case studies provide you with practical examples that can be applied to your own system designs.
- Apply measurement techniques for various parameters
- Enable frequency re-use and channel capacity optimization in mobile radio networks
- Design antennas for mobile communications-CDMA, GSM, and WCDMA
- Implement advanced antenna technologies for GSM base stations
- Facilitate enhanced system capacity
- Design unidirectional antennas, including directed dipole, wideband patch, and complementary antennas
- Optimize antenna designs for WLAN (WiFi) applications
- Design antennas for Wireless Personal Area Network (WPAN) applications, including RFID and UWB
Link: http://depositfiles.com/files/6sx4z62q9
Link: http://www.uploading.com/files/MSQPBDGX/0071612882.rar.html
Link: http://www.megaupload.com/?d=RGLXKCGR
Ahad, 6 September 2009
Email dari rakan tentang tips blaja CW
salam,Petua tu takde tapi kalau nak bgtau cara saya belajar dulu ialah.
1. Cari rakan radio yang sama minat CW. Lagi ramai lagi baik. Belajar sorang2 pon boleh..tapi lambat pandai dan boring.
2. Guna alat yang sesuai. Walaupun yang penting ialah kemahiran mendengar tapi untuk permulaan, kemahiran menghantar akan mempercepatkan lagi kemahiran mendengar dan menghafal abjad dan nombor. Saya menggunakan keyer K12 dan disambung dengan 2m handie.
3. Buat sesi belajar secara on air dengan rakan lain. Kena buat macam pertandingan, teka-teki dan macam2 supaya kita rasa seronok belajar. Kalau tak...sure punya dalam masa 5 minit dah kepala macam nak pecah dan sakit ..hehe..buat sesi secara bergilir..memang seronok. Kadang2 tak sedar jam dah pukul 4 pagi.
4. Download cw mp3 dan mainkan masa mobil sama ada guna cd mp3 atau guna fm transmitter yang boleh cucuk thumbdrive tu. Cara ni berkesan juga sebab sambil drive boleh dengar. CW mp3 boleh didownload di arrl w1aw. Guna yang 13wpm pun memadai.
Itu je cara saya belajar CW. Rasanya mungkin sama dengan rakan-rakan lain yang belajar CW. Yang penting ialah kesungguhan je. Biasalah..kadang2 tu kita rasa malas..boring..just let it. Lagi satu, saya ni jenis blaja last minit dan suka blaja dalam keadaan under pressure. Cara ni salah tapi saya suka buat macam tu even masa blaja kat U dulu. Tapi kalau nak last minit, pastikan 80% memang dah ada kemahiran dan bukan start dari 0%. Cuma blaja last minit tu untuk touch up the skill je. Finally, even kita dan 100% mahir dan confident, cuba atasi perasaan nervous. Sebabnya masa exam, memang tak semena2 boleh nervous. Iannya boleh mendatangkan bahaya yang teramat sangat. Sebab fikiran dan jiwa tengah kacau dan bergelora akan membataskan skill kita..heheheh..gud luck and 73
Dalam kesibukan ramadhan...
- After sales service syarikat mana yang paling "2 thumb up". Kat sini boleh disimpulkan bahawa Dell merupakan syarikat yang menjaga customer mereka. Syarikat paling teruk after sales servicenya ialah Canon. Sorry to say, tapi sampai hari ni, camera P&S jenama canon masih belum dikembalikan disebabkan kerosakan. Bosan betul menunggu. Rosaknya cuma focussing error. Mungkin cuma perlu tukar focus sensor atau focusing motor je dan camera tu boleh berfungsi semula. Then yang satu lagi ialah charger untuk FS100 camcorder. Baru sebulan pakai dah problem. Dah hantar semula ke canon, dan sampai hari ni takde khabar berita. Ello pren...kasi je la yang baru charger tu...refurbished punya pon takpe. Takkan itu pon mau ambik masa lama.Disebabkan itu, kegiatan merakam video telah terbantut. Dah gian betul nak upload video kat youtube. Dah jadi camni hilang terus semangat nak merakamkan aktiviti radio amatur.
- Dalam kesempatan yang ada ni, ada juga membuat research. Bukan pasal radio tapi pasal Garret Brown. Katanya dia ni agak genius inventor jugak ler. Apakah hasil ciptaan beliau tu? Beliau yang asalnya adalah car seller telah menjadi inventor dalam camera stabilization. So keinginan aku seterusnya ialah bukan nak invent tapi nak homebrewkan ciptaan beliau iaitu Merlin Steadicam. Tengah survey bahan2 yang diperlukan untuk membuat merlin ni. Benda utama yang paling sukar dibuat ialah gimbalnya. So takpe..pelan2 kayuh. Kalau beli merlin ni agak mahal iaitu sekitan Rm4.5K sebuah. Bukan ada apa cuma aluminium jer seperti gambar dibawah. Tapi hasil footage menggunakan merlin ni macam org panggil 'fluid motion'. Banyak video yang dihasilkan menggunakan merlin homebrew ni. Memang lain dan gerakannya sangat smooth.
Jumaat, 4 September 2009
Free domain for your website...
- http://zonestraits.com/
- http://www.co.cc/
- www.9m2ibr.via.my
- www.9m2ibr.co.cc
Isnin, 31 Ogos 2009
ICOM IC-9100
The Icom IC-9100 is a versatile and expandable transceiver. It offers professional performance, out of the box on HF, 6 meters and 2 meters with 100 watts. The 440 MHz band is also built-in with 75 watts. The UX-9100 band unit can also be added at any time to 1200 MHz band operation. This device requires 13.8 VDC at __ amps.
More technical information and additional photos will be added shortly. Icom America has not yet announced price or availability on this model.
This device has not been approved by the F.C.C. This device may not be offered for sale or lease or be sold or leased until approval of the F.C.C. has been obtained. The information shown is very preliminary and may be subject to change without notice or obligation.
Features
- RIT/XIT
- Digital Noise Reduction
- Manual and Automatic Notch
- Digital Twin PBT
- Dual Display
- 100 Watt Output (75 W on 440)
- Monitor
- LCD Display
- Keypad entry
- 10 Hz Readout
- Memory Keyer
- RF Attenuator
- Optional D-Star
- Optional 1200 MHz Operation
Ahad, 30 Ogos 2009
40m QSO 9M2GET, 9M6BOB dan YC9BEC
Ahad, 23 Ogos 2009
Selamat berpuasa
Jumaat, 14 Ogos 2009
Add new favicon to blogspot.
Sabtu, 8 Ogos 2009
ARRL handbook 2009
For the radio amateur…
For the technician and engineer…
For the newcomer…
This 86th edition of The ARRL Handbook for Radio Communications stays ahead of the pack taking its place as the most comprehensive source of applied electronics and communications know-how. First published in 1926, The Handbook has served generations of radio amateurs, professionals and students. This authoritative book features the most current material on the state-of-the-art:
- Principles of electronics—including basic theory, components, analog and digital circuit construction.
- Radio communication fundamentals and design— including modes and systems, filters, EMI, digital signal processing and software radio design, and RF power amplifiers.
- Real-world applications and operating— including practical projects, station setup, antennas, transmission lines, and methods for testing and troubleshooting.
- References—filled with hundreds of detailed tables, illustrations and photos. You will turn to The Handbook again and again!
CD-ROM Included! The CD-ROM at the back of the book includes all of the fully searchable text and illustrations in the printed book, as well as companion software, PC board templates and other support files. Brand-new material:
- Updated amateur satellite content, including details for today’s fleet of operational satellites.
- Updated versions of accessory software on the CD-ROM.
# RockMite QRP CW transceiver. Now expanded to cover 80, 40, 30 or 20 meters.
# Audio Interface for Field Day or Contesting. Audio and mic connections for two operators sharing a radio.
# Remote Power Controller. Turn high current devices off and on.
# Audible Antenna Bridge. Tune for the lowest SWR by ear.
…and MORE!
You wan a copy aaaa? please contact me :-)





