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Friday, 7 September 2012

Keep in Touch With Two Way Radios in Emergencies


The pair of these office electronic devices is a powerful communication tool wherein both devices can transmit and receive messages. Some units are powerful enough that two-way conversation is possible over a ten-mile radius and being portable, the talk time can extend up to 24 hours.Some units are provided with a keypad lock to prevent unnecessary use of the unit. The device also comes with a 20-level volume control for audio adjustment and several other features for the convenience of the user.
Two way radios are a terrific way of staying in communication and fall into two different categories. There is the FRS, or Family Radio Service type of radios, which can be operated without a license, but have a 2 mile limit on their transmission range. GMRS radios can have up to 50W for transmitting power but most falls into the 1W to 5W range.
Two way radios communications is a way of making immediate contact with talk groups. For instance, if the police department of one city is using certain frequencies, all another officer has to do is push a button on his hand held radio to make a contact. This can be very important in the event that an officer has been shot or hurt. If they used a cell phone instead, their message would be greatly delayed, maybe even costing a life. Ambulances use two way radios to communicate with the hospital about a patient’s condition so that doctors and nurses can give instructions to medics in the field or simply be prepared to handle the injured or sick person’s needs as soon as they arrive.
There are many differing feature sets to Radio Factory so it is important to consider what the radio is going to be used for. Back lighting is necessary if you are going to be operating in the dark. Use the listed range of transmission as a guideline only, as obstacles in the line of sight can seriously hamper the performance of these radios.
Other features you might like to have in your two way radios are automatic squelch for easier operation. Auto scan is another handy feature for keeping on top of conversations. Adjustable power levels is great for when you know you are going to be away from a handy wall socket, so you still have the power when you need it most. It is important before purchasing, to have a clearly written list of features you need, before deciding on the model that is right for you.
Battery life for Two Way Radios is based around 95% standby, 2% reception, and 3% transmission. The display screens are large, but you can get a lot of information on the screen like battery life, clock/time, alarm, stopwatch, digital compass, thermometer, and indicators for transmitting or receiving a signal. LCD display screens are easier to see in changing light conditions so look for a model that offers that. Talk confirmation lets your other party know when you are done talking and when it’s safe for them to respond. Memory location will store the channels you use most so you can access them more quickly.
Radio-factory is biggest seller  Two Way Radios  Two Way Radio Dealer, Solar Radio, Radio Battery,Radio accessory, Radio by BAND Radio accessory Radio item for Radio cable Radio Antenna  Direct Manufacturing Company  radio-factory.com
For more relevant information or buying two way radios visit  www.radio-factory.com

Tuesday, 10 July 2012

Radio Type : Two Way Radios

2 x Puxing PX-888 UHF 400–480 MHz Radio (PX-777)

2 x Puxing PX-888 UHF 400–480 MHz Radio (PX-777)

$159.99

One Pair Puxing PX-888 UHF 400-480Mhz Ham radio Free Earpiece NEW !
PUXING PX-888 (UHF 400~480MHz CTCSS,DCS ,5W Li-ion 1200mah) Build-in FM Radio
  
 
Free Earpiece
Package Include PX-888 (400 ~ 480Mhz)UHF X 2
-  7.2v 1200mah Battery Pack.
- 2x Antenna.
- 2x Belt Clip.
- 2x ENG Manual
- 2x Desktop Charger ( 100V ~ 240V ). 
   (2pin USA or 3pinUK or 2pin EURO)
PX-888 

Add to Cart: 

  • Model: PX-888
  • Shipping Weight: 0.43lbs
  • 99 Units in Stock







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2 x FD-450A UHF 400-470MHz FREE earpiece and PGM Cable

2 x FD-450A UHF 400-470MHz FREE earpiece and PGM Cable

$106.99

Feidaxin FDC FD-450A ( UHF 400 ~ 470 ) Two Way Ham Radio.
 Free Earpiece One pair Free 1 PGM Cable
- Built-in 50groups of CTCSS and 104 groups 
   of DCS
 - LCD&keypad backlit display ,blue digital 
   keyboard 
 - Standby time:120hours
 - Scan function,keypad lock 
 - Rainproof
 - Hi/Lo power select(1W-5W)
 - Programming method:computer/manual
 - Charger LED indicator(red-charging;
    green-fully chaged)
 - Signal strength indicator 
 - Key sound
 - Battery indicator
 - Semi-duplex operation
 - Reverse Frequency
 - Adjustable squelch
Package Include:
- 2x FD-450A (400 ~ 470Mhz)  
- 2x Battery Pack.
- 2x Antenna.
- 2x Belt Clip.
- 2x ENG Manual
- 2x Desktop Charger ( 100V ~ 240V ). 
( 2pin USA or 3pinUK or 2pin EURO )
- Earpiece For Free and 1 cable + software
 
Model No.
FD-450A
General
Frequency Band
UHF
Frequency Range
400 - 470 MHz
Channel Capacity
99
Operating Voltage
6V DC ± 15%
Antenna Impedance
50ohms
Channel Spacing
25KHz
Working Temperature
-30°C ~ +60°C
Frequency Stability
± 2.5ppm
Size (without antenna)
56(W) x 106(L) x 32mm(D)
Weight (with battery)
About 250g
Battery
1,300mAh(Ni-Mh)
Compatible with American Military Standard
(MIL-STD-810C/D/E)
Transmitter (EIA-RS 316B Standard)
RF Power Output
4W/5W
Modulation Type
F3E
Modulation Distortion
<5% (300 - 3,000Hz)
Maximum Frequency Deviation
<5KHz (1,000KHz when 100%)
FM Noise
<= -45dB
Receiver

Sensitivity (12Db SINAD)
0.16μV
Selectivity
55dB
Adjacent Channel Selectivity
>= 70dB
Noise Respond
>= 60dB
Communication Range
5 - 8km (downtown), 6 - 20km (in the open area)
FM Noise
45dB / 40dB
Modulation Type
16KOF3E
Audio Power Output
500mW when distortion less than 10%
Audio Distortion
<5%
Operating Bandwidth
± 7KHz
Standby Current
<10mA

Add to Cart: 

  • Model: 2 x FD-450A
  • Shipping Weight: 0.47lbs
  • 99 Units in Stock