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

Monday, 9 July 2012

Buy Two Way Radios Online

Two Way Radios, Two Way Radio Dealer, Solar Radio, Radio Battery,Radio accessory : Two Way Radio - Radio by BAND Radio accessory Radio item for Radio cable Radio Antenna laptop Skin laptop accessories Product requirements laptop battery laptop keyboard Two Way Radio Radio Brand Radio Type laptop adapter laptop USB DVD power tool batteries laptop FAN radio Headphones Laptop Hard Drives LAPTOP MOTHERBOARD Screen HDD caddy NEW DVB receiver SSD Walkie talkies Laptop WiFi Card LAPTOP SCREEN Radio Factory, radio factory suppliers, Radio accessory

Pair QuanSheng UHF400-470MHz Professional Radio

Pair QuanSheng UHF400-470MHz Professional Radio

$229.99

Frequency UHF:400-470Mz
Output power: 4W
CTCSS function
99 channels
Voice prompt
 
Display Channel+ Frequency mode
 
Auto battery saving function, extend the using time of battery.
 
Input Frequency directly by keypad
 
Low power alarm, when the power is low, it sends the sound signal to alarm you change the battery.
 
Keypad and LCD backlit function, convenient for darkness operation
 
Earphone / microphone / auto-charger jack ,convenient for answering and  charging
 
Technical specifications
Frequency range: UHF: 400-470MHz
Channel: 99
Operating voltage:7.2V DC
Channel spacing: 5KHz, 10KHz, 12.5KHz, 25KHz
Frequency stability:±5PPM
Antenna Impedance: 50?
Size?Not included antenna? (113mm*53mm*35mm)
Transmitter
Output power(High/low):5W/1W
Current:1.6A/1A
Modulation sensitivity:12± 3 mV
Modulation distortion:5%
Maximum frequency deviation:5KHz
Sub-audio distortion:0.75KHz±50Hz
Spurious response radiation:7V
Modulation mode:16F3E
Remanent modulation:-35dB
Receiver
Sensitivity:0.25V
Silent sensitivity:0.25V
Audio output power:500mW
Audio distortion:10%
Modulation bandwidth:±5 KHz
Spurious response rejection:55db
Selectivity:65dB
Intermodulation:60dB
Emphraxis:85dB
This package includes:
- QuanSheng (UHF) radio x 2
- 7.2v  1100mah x 2
- SMA  Antenna x 2
- Belt Clip x 2
- Manual x 2 
- Desktop Charger x 2
   
( 110V or 220V  depends or buyers' location)

 

Add to Cart: 

  • Model: UHF400-470MHz
  • Shipping Weight: 0.43lbs
  • 1000 Units in Stock













PUXING PX-777 UHF400-470MHz Professional Radio New

PUXING PX-777 UHF400-470MHz Professional Radio New

$129.99

 

New Puxing PX-777  UHF400-470MHz Professional Radio

UHF 4W
118 Groups of memory channels 
Built-in 50 Groups of CTCSS and 104 Groups of DCS 
Wide(25kHz) and Narrow(12.5kHz) available 
Come with 1200mAh Li-ion battery 
Input Freq. By using keypad 
Scan function
Three color LCD backlight display 
Emergency Alarm 
Bell ring when receiving signal 
Priority Scan Function 
Adjust power Hi/Lo 
Switching between Channel/Freq. 
Adjust squelch level(0-9) 
Busy channel lockout 
Keypad lock 
Reverse Freq Function 
Channel step 5k,10k,6.25k,12.5k,25k 
DTMF code
Program alphanumeric channels name
Self-program
VFO/MR key to store and delete channel
Come with 1200mAh Li-ion battery(1600mAh Li-ion battery option)
Input Frequency directly by keypad
Passed CE&FCC
General
Frequency Range

(UHF)400 ~470MHz
Channels Memory
128
CTCSS
50
Channel Steps
5   10  6.25  12.5   25kHz
Power Supply
7.2V 600mah
Operating Temperature
-20°C ~ +60°C
Antenna connect
SMA(SMA-J)
Antenna Impedance
50ohms
Dimension (H x W x D)
100x55.5x31mm
Weight
N/A
Receiver
Sensitivity
<0.20V
Selectivity
65dB
Intermodulation Rejection
60dB
AF Output
500mW
Standby Current
35mA
Transmitter
Power Output
UHF 5W
Modulation Type
F3E
Spurious Emission
< -65dB
Transmit Current
1300mA/700mA
Max. Deviation
±5kHz
Modulation Distortion
< 5%
Frequency Stability
±2.5ppm

This package includes:

    1x PX-777
1x7.2v 1200mah Li-ion Battery Pack.
1x Antenna.
1x Belt Clip.
1x ENG Manual
1x Desktop Charger ( 
110V or 220V  depends or buyers' location )

Add to Cart: 

  • Model: UHF400-470MHz
  • Shipping Weight: 0.48lbs
  • 1000 Units in Stock










Puxing PX-777 UHF400-470MHz Programmable WalkieTalkie

Puxing PX-777 UHF400-470MHz Programmable WalkieTalkie

$99.99  $98.99
Save: 1% off

 

New Puxing PX-777  UHF400-470MHz Professional Radio

UHF 4W
118 Groups of memory channels 
Built-in 50 Groups of CTCSS and 104 Groups of DCS 
Wide(25kHz) and Narrow(12.5kHz) available 
Come with 1200mAh Li-ion battery 
Input Freq. By using keypad 
Scan function
Three color LCD backlight display 
Emergency Alarm 
Bell ring when receiving signal 
Priority Scan Function 
Adjust power Hi/Lo 
Switching between Channel/Freq. 
Adjust squelch level(0-9) 
Busy channel lockout 
Keypad lock 
Reverse Freq Function 
Channel step 5k,10k,6.25k,12.5k,25k 
DTMF code
Program alphanumeric channels name
Self-program
VFO/MR key to store and delete channel
Come with 1200mAh Li-ion battery(1600mAh Li-ion battery option)
Input Frequency directly by keypad
Passed CE&FCC
General
Frequency Range

(UHF)400 ~470MHz
Channels Memory
128
CTCSS
50
Channel Steps
5   10  6.25  12.5   25kHz
Power Supply
7.2V 600mah
Operating Temperature
-20°C ~ +60°C
Antenna connect
SMA(SMA-J)
Antenna Impedance
50ohms
Dimension (H x W x D)
100x55.5x31mm
Weight
N/A
Receiver
Sensitivity
<0.20V
Selectivity
65dB
Intermodulation Rejection
60dB
AF Output
500mW
Standby Current
35mA
Transmitter
Power Output
UHF 5W
Modulation Type
F3E
Spurious Emission
< -65dB
Transmit Current
1300mA/700mA
Max. Deviation
±5kHz
Modulation Distortion
< 5%
Frequency Stability
±2.5ppm

This package includes:

    1x PX-777
1x7.2v 1200mah Li-ion Battery Pack.
1x Antenna.
1x Belt Clip.
1x ENG Manual
1x Desktop Charger ( 
110V or 220V  depends or buyers' location )


 

Add to Cart: 

  • Model: PX-777
  • Shipping Weight: 0.48lbs
  • 999 Units in Stock