Professional Handheld Two Way Radio JS-980
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 Sets set
- Supply Capability:
- 500 Sets/Week set/month
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Specifications of Professional Handheld Two Way Radio JS-980
General | |
Frequency Range | 400- 470MHz |
Channel Capacity | 16 |
Operated Voltage | 7.4V |
Battery Capacity | H-1500 MAh Li-ion |
Battery Life(5-5-90 duty cycle) | About 10 Hours |
Frequency Stability | ±2.5ppm |
Operated Temperature | ﹣20℃-﹢60℃ |
Antenna Impedance | 50Ω |
Dimensions | 127mmx61mmx36mm |
Transmitter | |
RF Power Output | 7W |
Modulation | F3E |
Spurious Emission | 65dB |
FM Noise | 45dB(W) /42dB (N) |
Audio Distortion | ≦5% |
Transmitting Current | ≦1000mA |
Receiver | |
Sensitivity (12dB SINAD) | ≧0.20μV |
Intermodulation | ≧65dB |
Adjacent Channel Selectivity | ≧60dB |
Spurious Response | ≧60dB |
FM Noise | 45dB(W) /42dB (N) |
Audio Distortion | ≦5% |
Accessory | |
Battery/Antenna/Charger/Belt Clip | |
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Wokshop of Professional Handheld Two Way Radio JS-980
Testing Equipments of Professional Handheld Two Way Radio JS-980
Shipment of Professional Handheld Two Way Radio JS-980
- Q: What factors affect the handheld GPS receive signal?
- In addition to not see the sky (such as indoor, underground, dense forest) and narrow alleys and tall buildings on both sides of the environment, there will be no impact. Many GPS has 12 receivers (antenna unit), as long as it can capture 3 satellites can be three-dimensional positioning (including height), the 2 satellites can be flat positioning.
- Q: My friend is in use, the difference is not big, professional handset (smart or Magellan bulky, but 3 case), but the price is expensive, but can not call and map is very rotten, endurance of 10 hours (dry battery) the mobile phone also has all the time. Know friends say, I mainly in the suburbs! Thanks
- I am a professional to do GPS, the difference between the professional handheld and mobile GPS is very understanding, here and your simple communication.1, GPS is the most important positioning accuracy and confidence. Professional handheld GPS chip used to stabilize the performance of some, the accuracy will be better, such as Garmin handheld high-end product positioning can be achieved within 3 meters, while the phone's GPS chip is different.2, both in the design and positioning of the crowd is very different. Professional GPS more focus on outdoor industry and users, the use of design idea is how to better outdoors, outdoor tourism including tourism exploration assistant very full function, and mobile phone GPS is a trend not only, what purpose.3, professional handheld machine with industrial design. First of all, if used outdoors, then fell, and so on are likely to water, and this thing is also very expensive, so the opportunity to have a high professional anti shock waterproof performance.4, different screen design. If you look carefully, you can see in the outdoor light, mobile phone can not see the contents of the screen, while the professional handset is not the same, can see clearly in bright light, does not affect the work of foreign trade operations.5, strong battery life, is a major feature of professional GPS, Garmin handset General of dry batteries can be used more than ten hours, while the mobile phone GPS on GPS also can use a few hours, if you open the GPS in general about 3 hours will be over.6, supporting different software. Professional GPS handheld opportunities related to the PC end of the data processing software, this software can achieve the acquisition of data processing, as well as the application of data collection. The phone GPS can only navigation, and navigation is only a small part of the GPS function.I simply say these, this is my personal summary of the difference, if you have what is not clear can exchange. Want to help you.
- Q: Is it accurate to measure highway mileage with GPS handheld
- Can only say that the handheld GPS measurement of highway mileage can be a reference, if you want to measure the accuracy or sub meter level or professional measuring tools better
- Q: Seeking the similarities and differences between RTK and GPS
- GPS: is the satellite positioning system in general, narrow sense refers to the GPS satellite, and the narrow sense refers to all can receive GPS signal equipment; RTK refers to the dynamic real time difference measurement, it also refers to the difference can be used for real-time dynamic measurement equipment. The difference between the two measurements from speaking: GPS contains RTK, also includes some precision lower grade equipment, such as the Garmin handset, handset, GPS meter level navigation etc..
- Q: Hand held GPS coordinate conversion method
- Three parameter test DX, DY, DZ, DA, DF after the conversion parameters of the five, must be prompted to enter the handheld GPS, while the input area of the central meridian longitude. E on behalf of the east longitude, projection ratio of 1, the deviation of things to the north and south of the deviation of 0, and set the unit for M. Enter these parameters, should be taken to the field test, check whether these five parameters are correct. The method is selected, vision, GPS receiving signal strength of the feature points in the field (such as linear object intersections, independent features, etc.) is the best stone control points were measured and compared with theory and find out the coordinates of these points. If the results of the comparison exceed the nominal accuracy of the instrument, the conversion parameters or the problems that should be found should be recalculated.
- Q: What is GPS Mu meter ah, with the general said that the GPS measuring instrument what is the difference?
- GPS Mu meter also known as land area measuring instrument, handheld meter meter, etc.. Integrated computational methods for understanding and intelligent high precision GPS positioning system, the precise area of the handheld computer system, can realize the irregular area of real-time measurement and dynamic graphical display and intelligent data processing and storage.GPS measurement of the meter is different from the general GPS measuring instrument is based on the latitude and longitude of its area calculation function, general GPS is generally used for positioning.
- Q: How do I still stay in the GPS navigation, GPS monitoring of the primary idea? FiveBusiness services, thank you!Future business services
- Mainly for the ship, automobile, aircraft and other moving objects positioning navigation. For example:1 ocean navigation and incoming water diversion2 aircraft route guidance and approach landing3 vehicle autonomous navigation4 ground vehicle tracking and urban intelligent traffic management5 emergency rescue
- Q: Ask how to select a google satellite map into a handheld Area GPS
- If it refers to a professional portable handheld GPS, please ignore this answer.
- Q: Handheld GPS purchaseHandheld GPS navigator!Is mainly used for tourism, I said is not a mobile phone, is a more professional handheld GPS navigator for travel outside! Handheld GPS navigator can voice navigation?
- If it is only used for general tourism, then hundreds of pieces of GPS is enough, go to the computer city to see, there must be sold, or go to your city to look at the outdoor store
- Q: How the German born handheld GPS Mu meter, I want to buy?
- The data acquisition function of scientific, simple and accurate measurement of area, display area and the "Mu", "price" area can be set automatically calculate the area of "price", fit the actual demand Chinese industry users on the data collection and usage, highlighting the professional quality.Is the highest cost-effective mid-range machine
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Professional Handheld Two Way Radio JS-980
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 Sets set
- Supply Capability:
- 500 Sets/Week set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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