The hardware part of the car GPS navigator is similar. If there is a hardware quality problem, the software used on the navigator determines the characteristics of a navigator. It is easy to use or not because the navigation software is human enough. decided.
Today, I will summarize some tips for using GPS software. Most of the navigation products on the market have similar functions. Rational use of navigation software can improve the efficiency of our travels, make the best use of it, and spend money to buy it. The car GPS navigator can be regarded as a true value.
The European brand TomTom has conducted a survey. Skilled use of car GPS navigators can save us about 15% of fuel consumption. In the face of the current rising price of refined oil, it is not a car GPS in one year. The navigator, the money saved can also add some supplies to the car, which can prove the value of using the car GPS navigator skillfully.
Tip: POI=Point of interest, which is the name of the place where the data is collected in the navigation software. The location of the place is queried in a specific way (search), and then the navigation is calculated. The route is the route selection through the route arranged in the data, and the route that the user needs to go to the destination is calculated.
GPS software tips 1: booking a destination
Students who often use car GPS navigators will encounter such problems, that is, they can't find where they want to go. Try to find the place they want to go with a variety of keywords on the navigator. In fact, pass some Simple application skills are enough to eliminate problems that destinations cannot properly query.
When using the car GPS navigator, because the built-in navigation software can not reach 100% of the points of interest, whether it is the change of the time interval of the collection, or some unrepresented points of interest are not included. , so that our users can not find the corresponding point of interest when they want to go to a place.
Basic skills: We can check in advance when we go to the destination. When we find no points of interest, we may use the electronic map of the network or the tips of friends to find other landmarks closer to the destination, so that we can still navigate to Near the destination.
Advanced Skills: Pre-storing common addresses, the next time you use the address, no matter where we are, as long as the destination is known, we can easily navigate quickly. Including the residence of friends and family, the specific location of the customer. Using GPS as an address book can bring a lot of convenience to travel.
Navigator Tip 2: Peripheral Search
Peripheral search is a function of the car GPS navigator. The search function in foreign countries is a function that is frequently used. Therefore, the Garmin products introduced in the early days are still the first option for navigation by surrounding search. Later, it was found that the usage habits of domestic users rarely used the peripheral search function, so the peripheral search function was moved backwards.
Basic skills: But there is no denying that peripheral search is a very useful feature, for example. When we arrive at a destination, we can use GPS to check the nearby parking lots, food and beverage outlets, etc., and note that even if we don't arrive at the destination, we can still click the search range to get the purpose. Facilities around the ground or at a specific location.
Microwave PCB
microwave PCB`s is a type of PCB designed to operate on signals in the megahertz to gigahertz frequency ranges (medium frequency to extremely high frequency). These frequency ranges are used for communication signals in everything from cellphones to military radars. The materials used to construct these PCB`s are advanced composites with very specific characteristics for dielectric constant (Er), loss tangent, and CTE (co-efficient of thermal expansion).
High frequency circuit materials with a low stable Er and loss tangent allow for high speed signals to travel through the PCB with less impedance than standard FR-4 PCB materials. These materials can be mixed in the same Stack-Up for optimal performance and economics.
The advantages of using materials with a low X, Y and Z CTE is a resulting PCB structure that will remain extremely stable in high temperature environments while operating at up to 40 GHz in analog applications. This allows for the effective placement of very fine pitch components including, in some cases, bare die-attach. Additionally, the low CTE materials will facilitate the alignment of multiple layers and the features they represent in a complex PCB Layout.
Features
.CTEr = +40/+50 ppm per °C (low); Tg (glass transition temperature) is 280°C
.ER = 3.38/3.48 at 10.0 GHz
.ER is constant to 40.0 GHz
.ED (electro-deposited) copper only
.Layer-to-layer thickness control = +/- 0.001
.Fabrication costs are typical to slightly increased
Microwave PCB
Microwave PCB,Microwave Frequency PCB,Bare Copper Microwave PCB,High Frequency PCB
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