Scanner Antenna
Homemade Scanner Antenna?
I am considering making a scanner antenna out of Telescopic Rabbit Ears….all i need to get is a Female Coax to BNC Male connector…I was wondering if these Rabbit Ears would actually pick up frequencies?
Thanks
Rabbit ears are a poor choice for a scanner antenna. They have a figure 8 pattern or in other words pick up from the 2 sides of the rabbit ears, not from all directions. Rabbit ears were designed to work with televisions which have a 75 ohm impedance. Scanners and 2-way radios have a 50 ohm impedance. While they will work to a certain extent they won’t work as well as an omnidirectional antenna designed for use with 50 ohm equipment.
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Scanner antenna $15.50 |
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THE NEW SNOOP STORM SCANNER ANTENNA FITS UNIDEN BEARCAT,Police Radio Fire, gre, $12.95 |
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UNIDEN BC246T 800MHZ HANDHELD POLICE FIRE NASCAR RACE SCANNER ANTENNAS BATTERIES $129.99 |
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MULTI BAND SCANNER ANTENNA DIESEL THRU THE GLASS W/ MOTO CONN AND BNC ADAPTER $19.95 |
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SCANNER MULTI BAND MICRO MAG ANTENNA TMM3 W/ BNC CONN $12.95 |
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All Band Scanner Antenna, 3/8 x 24, 25 – 800 Mhz. $13.95 |
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Track Scan Scanner Antenna and Headphones $20.00 |
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Centre-Loaded Telescoping Scanner Antenna $15.67 |
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NEW BNC ALL SCANNERS TELESCOPIC ANTENNA UNIDEN BEARCAT $11.74 |
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Deluxe Discone Scanner Base Antenna with F connector adaptor NEW $47.95 |
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OEM Factory GRE America Inc BNC VHF Antenna Rubber Ducky Police Scanner Nascar $14.99 |
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UNIDEN BASE SCANNER ANTENNA BNC TELESCOPIC RADIOSHACK – GRE ANY BNC $9.99 |
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SCANNER 6″ ANTENNA BLACK RUBBER #136-174 MH W/ BNC CONNECTOR *NEW * $4.99 |
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UNIDEN BASE SCANNER ANTENNA BNC TELESCOPIC RADIOSHACK – GRE ANY BNC $9.99 |
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UNIDEN BASE SCANNER ANTENNA BNC TELESCOPIC RADIOSHACK – GRE ANY BNC $9.99 |
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Valor Through the Glass Scanner Antenna! NIB, NO RESERVE!!! $5.00 |
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2 Meter VHF Copper J-Pole Base Antenna amateur ham radio / scanner 144-148Mhz $27.00 |
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Radio Shack PRO-106 39,000 channel Handheld Scanner /With 800 Mhz Antenna $259.99 |
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THE NEW SNOOP STORM SCANNER ANTENNA FITS UNIDEN BEARCAT,Police Radio Fire, gre, $12.95 |
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All Band Glass Mount Scanner Antenna, 25-1300 Mhz. $21.95 |
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SCANNER MULTIPLE BAND ANTENNA TGS THROUGH THE GLASS W/ MOTOROLA PLUG AND BNC $15.95 |
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MULTI BAND HF-VHF-UHF-800 MHz SCANNER MICRO MAG ANTENNA TMM3 W/ BNC CONN $19.95 |
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THE NEW SNOOP STORM SCANNER ANTENNA FITS UNIDEN BEARCAT,Police Radio Fire, gre, $12.95 |
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THE NEW SNOOP STORM SCANNER ANTENNA FITS UNIDEN BEARCAT,Police Radio Fire, gre, $12.95 |
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Stubby Antenna for Racing Scanners, Uniden, Radio Shack $7.99 |
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VHF/UHF/CELL LITE MINI MAGNETIC HAM SCANNER ANTENNA $18.95 |
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POLICE SCANNER ANTENNA TUNED 800-900 MHZ PRO DIGITAL SCANNER UPGRADE $16.99 |
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Uniden BC350A NASCAR POLICE SCANNER no Antenna +MODS $73.14 |
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Uniden BC350A NASCAR POLICE SCANNER + wire antenna but NO mods $77.89 |
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Uniden BC350A NASCAR POLICE SCANNER NO antenna NO mods $68.39 |
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NEW UNIDEN BEARCAT SCANNER BNC ANTENNA BC340 BC370 BC350 $14.99 |
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Antenna for Scanners… $10.00 |
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10 New Stubby Race Scanner Antenna 1.7 in BNC Connector Racetrack 20-288 $29.95 |
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50 New Stubby Race Scanner Antenna 1.7 in BNC Connector Racetrack 20-288 $84.95 |
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RACING ELECTRONICS SUPER ANTENNA FOR SCANNERS (ANT6) $12.71 |
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THE NEW SNOOP STORM SCANNER ANTENNA FITS UNIDEN BEARCAT,Police Radio Fire, gre, $12.95 |
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THE NEW SNOOP STORM SCANNER ANTENNA FITS UNIDEN BEARCAT,Police Radio Fire, gre, $12.95 |
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Hustler MRM Magnet/Mag Mount Scanner Antenna NEW $28.95 |
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UNIDEN BC92XLT 800MHZ HANDHELD POLICE FIRE NASCAR RACE SCANNER ANTENNAS BATTERY $80.00 |
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THE NEW SNOOP STORM SCANNER ANTENNA FITS UNIDEN BEARCAT,Police Radio Fire, gre, $12.95 |
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Uniden Bearcat BC210XLT 40 Channel Scanning Radio Scanner Base Unit Antenna NR $15.50 |
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Base/Desktop Scanner Replacement Antenna Free Shipping $8.00 |
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Hand Held Scanner Replacement Antenna BNC VHF/UHF $9.99 |
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Max Systems 800 Mhz Scanner Antenna $20.00 |
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New Archer All Band Magnetic Mount Mobile Scanner Antenna Cat.No.20-012 $49.95 |
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ProComm JBC290M/BC Magnet Mount Scanner Antenna NEW! $24.99 |
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Vintage HAM Radio Gear CDE Antenna Rotor & Para Dynamics Power Scanner PDC 700 $49.95 |
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Bearcat BC-100 Programmable Scanner Antenna and power supply $15.00 |
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BNC RIGHT ANGLE 21.5″ TELESCOPIC MULTI BAND SCANNER ANTENNA FITS MOST SCANNERS $9.00 |
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MULTI BAND SCANNER ADAPTER T64 CONVERTS YOUR AM/FM ANTENNA TO A SCANNER ANTENNA $17.95 |
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TGSBNC SCANNER ANTENNA THRU THE GLASS TECHNOLOGY W/ MOTO PLUG AND BNC $18.00 |
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SCANNER ANTENNA SPLITTER FOR CAR RADIO $39.04 |
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TRAM GLASS MOUNT ALL-BAND SCANNER ANTENNA, # 1199 $16.98 |
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Uniden BC350A NASCAR POLICE SCANNER + WIRE ANTENNA+MODS $84.54 |
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BEARCAT 12 VINTAGE SCANNER POLICE WITH ANTENNA AND A BEARCAT IV FOR FREE ! $9.00 |
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RadioShack® 20-011 Mobile Glass-Mount Scanner Antenna $22.95 |
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THE NEW SNOOP STORM SCANNER ANTENNA FITS UNIDEN BEARCAT,Police Radio Fire, gre, $12.95 |
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3 High Gain Scanner Antennas 100-1000 Mhz Uniden GRE $30.00 |
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RADIO SHACK PRO-84 800MHZ HANDHELD POLICE FIRE NASCAR SCANNER ANTENNAS BATTERY $79.99 |
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UNIDEN BEARCAT SCANNER 30 CHANNEL / WITH RACE ANTENNA $1.00 |
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RADIO SHACK REALISTIC PRO 2024 60 CHANNEL SCANNER WITH ANTENNA $40.00 |
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THE INVESTIGATOR SCANNER ANTENNA™ FITS RADIO SHACK UNIDEN BEARCAT POLICE RADIO $33.05 |
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THE ORIGINAL SNOOP SCANNER ANTENNA FITS UNIDEN BEARCAT gre police radio fire ant $12.95 |
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TELESCOPIC MULTI BAND BNC R/A 21.5″ SCANNER ANTENNA FITS MOST SCANNERS $9.00 |
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Universal Replacement Antenna for Scanner Ham Radio Hand Held CB $9.95 |
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Uniden BNC Right Angle Swivel Wide Band Scanner Antenna $10.75 |
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BEARCAT SCANNER TELESCOPIC ANTENNA SCREW THREADS ANT30 $12.99 |
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UNIDEN / GRE DESKTOP SCANNER ANTENNA BNC SCAN-3 $8.75 |
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Center-Loaded Telescoping Scanner and HAM Radio Whip Antenna $18.99 |
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THE NEW SNOOP STORM SCANNER ANTENNA FITS UNIDEN BEARCAT,Police Radio Fire, gre, $12.95 |
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New Radio Shack 20-011 Mobile Glass Mount Scanner Antenna $12.59 |
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POLICE SCANNER ANTENNA DESKTOP 800-900 MHZ PRO 2096 DIGITAL AND ANALOG UPGRADE $14.99 |
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SCANNER ANTENNA TGS THRU THE GLASS W/ MOTOROLA MALE PLUG AND BNC $10.95 |
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SCANNER MULTI BAND MICRO MAG ANTENNA TMM3SMA W/ SMA MALE CONNECTOR $24.95 |
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SMA Antenna Mount, Clip On This Clip On SMA Antenna Mount is ideal for Scanners $19.95 |
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TELESCOPIC 26″ RIGHT ANGLE ALL BAND SCANNER ANTENNA WITH MOTOROLA PLUG $9.00 |
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BNC WINDOW Antenna Mount TWM is ideal for SCANNERS AND HAND HELD CB ’s $24.00 |
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POLICE SCANNER ANTENNA TUNED 800-900 MHZ PRO DIGITAL SCANNER UPGRADE $14.99 |
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ProComm JBC290M/BN BNC Mirror Mount Scanner Antenna 18″ $21.29 |
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SCANNER Antenna Glass Mount works all-Bands TRAM #1199 $19.27 |
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UNIDEN BNC RIGHT ANGLE SCANNER TELESCOPIC ANTENNA AT124 $11.49 |
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7” FLEXIBLE ANTENNA FOR HT or SCANNER – HAM RADIO $4.00 |
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Larsen 150 – 170 MHZ VHF Wide Band NMO antenna SCANNER $15.00 |
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THE “Super” SNOOP SCANNER ANTENNA FITS UNIDEN BEARCAT, GRE, Radio Shack with BNC $32.35 |
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Maxrad Antenna Wideband MHZ SCANNER $12.50 |
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UNIDEN BEARCAT BC 560XLT SCANNER W POWER CORD & ANTENNA POLICE FIRE EMERGENCY $10.49 |
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18″ Scanner Antenna Kit Mirror Mount RoadPro RPFJ-1 New! Police Fire Emergency $14.99 |
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***QUANTITY DISCOUNT***2 NASCAR SCANNER ANTENNAS 1.7in BNC RADIO SHACK $8.00 $8.65 |
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SCANNER ANTENNA TGS THRU THE GLASS W/ MOTO PLUG AND BNC $10.95 |
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UNIDEN / COBRA DESKTOP SCANNER PUSH IN ANTENNA SCAN-1 $8.50 |
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UNIDEN / GRE DESKTOP SCANNER ANTENNA BNC SCAN-3 $8.50 |
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UNIDEN WINDOW MOUNT SCANNER ANTENNA BNC = SCAN-4 $12.25 |
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RACE TRACK SCANNER ANTENNA NEW BNC 2-1/4″ SCAN-5 $7.50 |
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REGENCY DESKTOP SCANNER ANTENNA – SCAN – 12 $7.50 |
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Nagoya NA-701 SMA-Male 144/430Mhz 2.15dB 10W Antenna HT/Scanner $14.00 |
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SE-V1300 Discone Scanner Base Station Antenna / Aerial $70.49 |
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Car Radio / Scanner Male Antenna Plug – Package of 4 – CLOSEOUT!! $1.25 |
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Rubber Antenna 2 Meter Ham Radio / Scanners etc. $8.50 |
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Vintage Bearcat 210 BC-210 Scanner Needs Antenna $19.99 |
Rfid-emerging Technology
Radio frequency identification, or RFID, is a generic term for technologies that use radio waves to automatically identify people or objects. There are several methods of identification, but the most common is to store a serial number that identifies a person or object, and perhaps other information, on a microchip that is attached to an antenna (the chip and the antenna together are called an RFID transponder or an RFID tag). The antenna enables the chip to transmit the identification information to a reader. The reader converts the radio waves reflected back from the RFID tag into digital information that can then be passed on to computers that can make use of it. RFID is not necessarily “better” than bar codes. The two are different technologies and have different applications, which sometimes overlap. The big difference between the two is bar codes are line-of-sight technology. That is, a scanner has to “see” the bar code to read it, which means people usually have to orient the bar code toward a scanner for it to be read. Radio frequency identification, by contrast, doesn’t require line of sight. RFID tags can be read as long as they are within range of a reader. Bar codes have other shortcomings as well. If a label is ripped or soiled or has fallen off, there is no way to scan the item, and standard bar codes identify only the manufacturer and product, not the unique item. The bar code on one milk carton is the same as every other, making it impossible to identify which one might pass its expiration date first. RFID is therefore definitely the better technology, depending the needs of the users. But every new technology brings with it apart from the obvious advantages, some serious disadvantages too. Thus Albert Einstein never could have imagined that his equation E=MC2 could one day be used to manufacture nuclear bombs. RFID too brings with it serious considerations that RFID tags could invade individual privacy and security. Already Hospitals in the USA are considering the implanting of RFID chips inside the patients’ bodies, to track them and post-treatment health trends. Many American Agro companies are using RFID tags to track animals like cows, pigs etc.Soon major companies could think of implanting RFID chips and tags in their employees to track them in and out of office. If this is not invasion of privacy, then privacy invasion has to be redefined. The possibility of the governments planting these ’spychips’,as RFID chips are called, in the bodies of citizens and tracking their every single movement and action, is clear and distinct.Enemy Nations could implant these spychips inside persons handling sensitive portfolios in National Defence and the Armed Forces. Spying and spying techniques could undergo revolutionary changes, eliminating the need for physical presence of the spies inside enemy terrirtory. A combination of spy satellites and spychips could render privacy as a thing of the past. These are real concerns. Laws must be enunciated to counter these possibility, ensuring the sovereignty of personal privacy and limiting the use of RFID tags and chips.
About the Author
PKP Iyer, Editor, Excellone Technologies ( http://www.excellone.com ) and Java Development India ( http://www.javadevelopmentindia.com ). Our company offer Technology solutions using Java such as SPRING, J2EE, J2ME for Software Application Development and IT Outsourcing services from our offshore software development centre in India.
Rabbit ears or Internet may solve radio issue
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