Vhf Tranceiver

Vhf Tranceiver

We do not intend to delve deeply into the two-way Radio, only a bird eye view. We would want to accept the fact that it is one of the developmental stages of the mobile cell phone as we know it today especially in the form of the hand held Walkie Talkies. While a broadcast receiver (Receiver Radio) can only receive broadcast content only, the two-way Radio can receive and also transmit content. In other words it is a transceiver.

There are three forms of the two-way Radio.

(1) The" genetic" mobile two -way Radio which gave birth to the modern Mobile Cell phone. It has the ability to receive and transmit simultaneously.

(2)The stationary two-way Radio which is the basis of the modern Cellular BASE stations and the pivot on which the modern day phone system operate. It may be pertinent to let you know that Distance calling by mobile cell phones is only made possible by a network of cells. A cell is a BASE station (High rise Towers) with its coverage area. For a mobile phone A to call a distant phone B, phone A must first connect its nearest base station which in turn connect phone B through its nearest base station. This is why these phones are called CELL PHONES. Note that cell phones are also Two way Radios.

(3)The hand held portable two-way Radio more commonly called the Walkie Talkies or Handie Talkies.

TYPES OF TWO WAY RADIOS.

Different systems, technologies and types are available. However, they are of two major forms, the Family Radio Service-FRS and the General Mobile Radio Service GMRS models.

1. The Family Radio Service model FRS: This model which is characterized by a lower power of half watt can only support a maximum range of about 6miles in ideal conditions It is built to transmit on a total of 14 channels which include 7 FRS channels and 7 shared FRS/GMRS channels.

2. General Mobile Radio Service- GMRS: Characterized by a higher power, (usually between 1 and 2 watts) this Radio is for outdoor use. The Radio has 22 channels and the signal can travel on either FRS or GMRS bands. However since consumers want more channels and prefer the 22 channel Radio to the 14 channels, most radios now have all 22 FRS and GMRS channels available in manufacturers' response to market demand.

CHOOSING A TWO WAY RADIO, WHAT YOU NEED TO KNOW.

THE RANGE: The range of a two way Radio refers to the maximum distance between two Radios for effective communication. A two way Radio of 5miles range can only make effective communication if the distance between the two communicating Radios is less than 5miles. Therefore, the higher the range, the better the radio. Unfortunately however, the only way to know the range before buying as sellers are not likely to allow a physical test which might involve opening the pack, is to rely on the specification on the packing label. One wonders if the manufacturers are out to play their customers in view of the fact that what is given is hardly correct. That such values are for ideal conditions may however be partially responsible. Achieving good line of sight free from blocking materials such as trees, wall, rock etc is desirable for effective reception. These are some of the necessary factors to achieve an ideal condition. All these can hardly be achieved in nature. The only option left to give us an idea of the Range is the ANTENNA.

THE ANTENNA: A good antenna will not only increase the range but also improve reception. Generally, the bigger the antenna the better it is However, it most not be too bogus to cause discomfort in our pockets. POWER: The higher the power, the higher the range. While a radio of half power could have a range of 6miles, that of between 1-2 power could have a range of say 25miles.

AVAILABLE FEATURES: There are varied features as much as we have different manufacturers and consumers. The fact is that if you want more features, then be ready to pay more. The following are some of the features common with modern two way Radios.

(1)Calling and paging features.

(2)keypad lock

(3)Headset jack for phones, etc.

Godwin Akpotu (Pent name "Godak")

Godwin Akpotu. (Pent name "Godak") is the creator of http://godak-alltopics.blogspot.com. You can visit this site for more information on mobile Cell Phones.

Finisar 10GBase-SR SFP+ Tranceiver FTLX8571D3BCL $139.26 Finisar 10GBase-SR SFP+ Tranceiver FTLX8571D3BCL

TrendNet Tranceiver 10/100Mbps 1-Port TFC110MSC $61.95 TrendNet Tranceiver 10/100Mbps 1-Port TFC110MSC

Alcatel 1630-SX Xcv Tranceiver 3AL00420AA $295 Alcatel 1630-SX Xcv Tranceiver 3AL00420AA

Nortel 10 Base-FL Tranceiver 504A $66.25 Nortel 10 Base-FL Tranceiver 504A

Brocade 4GB Optical Tranceiver 850nm SFP 57-1000013-01 $24.06 Brocade 4GB Optical Tranceiver 850nm SFP 57-1000013-01

Brocade 4GB Optical Tranceiver 850nm SFP 57100001301 $104.9 Brocade 4GB Optical Tranceiver 850nm SFP 57100001301

TrendNet Tranceiver Ethernet 10/100Mbps 200Mbps TFC15MS100 $206.81 TrendNet Tranceiver Ethernet 10/100Mbps 200Mbps TFC15MS100

Cisco Scientific Atlanta Avago SFP Tranceiver 1000BaseT Model 4006222 74760401 $204.75 Cisco Scientific Atlanta Avago SFP Tranceiver 1000BaseT Model 4006222 74760401

HP Module Terminal Server Tranceiver Internal 10MPS 10BT RJ-45 J2607A $65.32 HP Module Terminal Server Tranceiver Internal 10MPS 10BT RJ-45 J2607A

Opnext OC-48/STM-16 1310 0-2km SFP Tranceiver TRF5961 SFP1OC48SR $1030.3 Opnext OC-48/STM-16 1310 0-2km SFP Tranceiver TRF5961 SFP1OC48SR

Finisar 10GBase-SR SFP+ Tranceiver $150.99 1 1 x 10GBase-SR 1 x LC 10GBase-SR 10.30 Gbps 10.30 Gbps Gigabit Ethernet 10GBase-SR 10GBase-SR SFP+ Tranceiver Distance support: 300m Wavelength: 850nm Complaince with Multi-Source Agreement Finisar's FTLX8571D3BCL 10Gb/s SFP+ transceivers are designed for use in 10-Gigabit Ethernet links over multimode fiber. They are compliant with SFF-84311, SFF-84322 and IEEE 802.3ae 10GBASE-SR/SW3. Digital diagnostics functions are available via a 2- wire serial interface, as specified in SFF-84724. The transceiver is RoHS compliant and lead free per Directive 2002/95/EC5, and Finisar Application Note AN-20386. Data Networking FTLX8571D3BCL Finisar Finisar Corporation Hot-pluggable Multi-mode Fiber 10GBase-SR RoHS-6 XFP Yes www.finisar.com

Mad Catz / 103-Key Wireless litetouch Illuminated Keyboard w/Trackball, LCD Touch Panel & Nano Tranceiver / ECB43001N002 $31.36 Mad Catz - 103-Key Wireless litetouch Illuminated Keyboard w/Trackball, LCD Touch Panel & Nano Tranceiver - ECB43001N002

Cisco Scientific Atlanta Avago SFP Tranceiver 1000BaseT Model 4006222 74-76 ABCU5710RZ $204.75 Cisco Scientific Atlanta Avago SFP Tranceiver 1000BaseT Model 4006222 74-76 ABCU5710RZ

Transition Networks Small Form Factor Pluggable (SFP) Tranceiver Module 1 X 1000Base-T SFP Tnglct $193.91 Transition Networks Small Form Factor Pluggable (SFP) Tranceiver Module 1 X 1000Base-T SFP Tnglct

Transition Networks Small Form Factor Pluggable (SFP) Tranceiver Module - 1 x 1000Base-SX - SFP TNGLCSXMM $182.51 Transition Networks Small Form Factor Pluggable (SFP) Tranceiver Module - 1 x 1000Base-SX - SFP TNGLCSXMM

HP Controller Module I/O BD A-FC Loop w/O SFP Tranceiver For M5314A 364549005 $149.75 HP Controller Module I/O BD A-FC Loop w/O SFP Tranceiver For M5314A 364549005

Finisar 2Gbps Fiber Short Wave mm Small Form Factor Pluggable Tranceiver FTRJ8519P1BNL $10 Finisar 2Gbps Fiber Short Wave mm Small Form Factor Pluggable Tranceiver FTRJ8519P1BNL

Garmin Vhf Antenna 0101085600 $18.77 Garmin Vhf Antenna 0101085600

ACP - Memory Upgrades Juniper's Gigabit Ethernet SFP Tranceiver $143.99 1 1 Gbps 1 Gbps Gigabit Ethernet 1 x 1000Base-ZX 1000Base-ZX ACP - Memory Upgrades Data Networking Fiber 1000Base-ZX JX-SFP-1GE-LH-AO Juniper's Gigabit Ethernet SFP Tranceiver SFP (mini-GBIC) www.addoncomputer.com

Transition Networks Small Form Factor Pluggable (SFP) Tranceiver Module $173.99 0.54" Height x 0.92" Width x 2.80" Depth 1 1 lb 1 x 1000Base-T 1 x RJ-45 1000Base-T 1.25 Gbps 1.25 Gbps Gigabit Ethernet @ 328 ft 1000Base-T Class 1 Laser International Safety Standard IEC-60825 Compliant Compatible with Small Form Factor Pluggable Multi-Sourcing Agreement (MSA) The SFP tranceiver is Cisco compatible and are designed for bidirectional serial-optical data communication such as Gigabit Ethernet or fiber channel at speeds up to 1.25 Gbps. Data Networking Hot-pluggable Lifetime SFP Small Form Factor Pluggable (SFP) Tranceiver Module TN-GLC-T Transition Networks Transition Networks, Inc www.transition.com

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Transition Networks TN-GLC-LH-SM Small Form Factor Pluggable(SFP) Tranceiver Module - 1 x 1000Base-LX - SFP TNGLCLHSM $352.96 Transition Networks TN-GLC-LH-SM Small Form Factor Pluggable(SFP) Tranceiver Module - 1 x 1000Base-LX - SFP TNGLCLHSM

Marine VHF Radio $101.99 COBRA MRF 45 MARINE VHF RADIO

West Marine VHF 55 (Screen) $14.99 West Marine VHF 55 (Screen)

Standard MCC-460 Black VHF Case $30 Standard MCC-460 Black VHF Case

Icom Replacement Vhf Antenna FASC55V $16.11 Icom Replacement Vhf Antenna FASC55V

Icom M88 Mini HH Vhf $297.61 Icom M88 Mini HH Vhf

Raymarine RAY55 Fixed Mount Vhf $283.12 Raymarine RAY55 Fixed Mount Vhf

Standard HX370S Hand Held Vhf $157.28 Standard HX370S Hand Held Vhf

Raymarine 240 Vhf Radio E42001 $624.28 Raymarine 240 Vhf Radio E42001

Garmin Vhf 300 Radio 0100075600 $671.19 Garmin Vhf 300 Radio 0100075600

Floating Marine Handheld Vhf Radio $122.99 FLOATING MARINE HANDHELD VHF RADIO

Antenna Vhf/Uhf/Fm Crossfire $83.99 ANTENNA VHF/UHF/FM CROSSFIRE

Tn-Glc-T - Transition Networks Small Form Factor Pluggable (Sfp) Tranceiver Module - 1 X 1000Base-T - Sfp $179.53 the Sfp Tranceiver Is Cisco Compatible And Are Designed For Bidirectional Serial-optical Data Communication Such As Gigabit ethernet Or Fiber Channel At Speeds Up To 1.25 Gbps. [N28124] UPC: 648177023004 UNSPC: 43222600 6L x 3.5W x 2H 1 LB 0.02 Cubes

300w Vhf Wireless Battery $134.99 PYLE PRO PWMA330 300-WATT VHF WIRELESS BATTERY-POWERED PA SYSTEM (INCLUDES 1 VHF WIRELESS MICROPHONE; 8" FULL RANGE SPEAKER)

Vhf 300i Ais Marine Radio $884.99 GARMIN 010-00757-01 VHF 300I AIS MARINE RADIO

38" Vhf Marine Antenna $19.99 TRAM 1600-HC 38" VHF MARINE ANTENNA

5 Ft Vhf Marine Antenna $27.99 TRAM 1610-HC 5-FT VHF MARINE ANTENNA