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Polish Magazine Article of KOLIDA K9T RTK

2011-12-06

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Looking at this device, you might think that this is yet another China-made RTK receiver in a typical case, with the same field software and the same 220-channel GNSS board. But this is only a semblance.

 

                                                                                                                                                                 JerzyKrolikowski 

RTK technology, particularly in high-developed countries already is very popular in Geodesy industry. Those widely-applied devices now include the receivers that come from China. Thanks for the improvement of RTK correction technology, now a qualified surveyor, even a user after just one-day training, is able to make precise measurements by RTK. In many countries, if the public VRS network service is not good enough, some companies use their own base stations. In Poland, to get correction data, your must have a receiver with GSM/GPRS modem. This solution depends on the signal quality and compatibility of the mobile network. At present, there still are some problems with the service from local mobile operators. Almost all of Chinese brands have ever met this problem.

 

Chinese RTK in Poland

 

GEOPRYZMAT analyzed above problem immediately and made face-to-face discussion with local surveyors in Poland, arranged a series of testing of different hardware and software and talk to some manufacturers. After that, Geopryzmat and the Chinese brand KOLIDA started to work together to solve them problems. Following a few months changing of hardware and modifying software ssuccessfully gained access to local network and performed wonderfully. The connection settings to polish local CORS system can be done by a very simple procedure, (thanks to clever firmware) quite fast and initialization is automatic. Not only that, KOLIDA K9T is able to work with external radio, (even you don’t need to buy radio module). The change is also happened to original KOLIDA software, KOLIDA data collection software Engineering Star makes your work more closed to unknown field application. As the second option, SurvCE program has polish version, its powerful capability has been mentioned repeatedly by our magazine (GEODETA, Issue 8, 2010). KOLIDA offers Psion Workabout controller with K9T, you can choose other brand terminal device too, for example Nautiz X7. Its major advantage include a 806 MHz processor, 3.5 inches screen, IP 67 level protection ensures high resistanceto harshweather conditions.

 

“Never put off till tomorrow what you can do today”


For this receiver there is a famous sentence could be changed to "whatever you have to do in office tomorrow, you can do in field today". In addition to the above-mentioned controllers, GEOPRYZMAT also provides Lenovo brand mini-laptop. First, mini laptop has very fast processor (1.6GHz), to deal with large files it is better than using handheld data collector. Second, mini-laptop is equipped with Windows 7, so you can install more advanced software, for example, GEOPRYZMAT offers this type of equipment with the program SurvPC (by Carlson Software), which is an adaptation of mobile applications of SurvCE. This software along with a laptop, enables you to do office work in field, like post-processing. The third, laptop provides convenience and rapidity, guarantees a large touchscreen and QWERTY keyboard. You can rotate Lenovo laptop 180 degrees, make it into a tablet. However, laptop doesn’t have enhanced protection against dustand water, you need a protection cover, this is the best collocation.

 

Quality and Price

 

KOLIDAK9-T has all the features of a modern RTK. By the 220-channels I know that not only the GPS satellites, but also GLONASS, Compass, and SBAS, and also the emerging European system Galileo can be tracked. Its coordinate positioning frequency is up to 20 Hz, Bluetooth module onboard, two batteries enable 9 hours continuous operation, the charger can recharge two batteries simultaneously, even with the car power adaptor. Receiver with antenna and battery totally weight 1.2 kg, so even long time measurement will not increase surveyors’ trouble and pain.

 

In the past few years, prices of GNSS receivers in Poland have dropped significantly. Currently a receiver can be purchased at about 20 thousand PLN, this trend is even better than total stations. However, at this price we get only a fully functional RTK, which is without additional accessories and other value-added service.

 

The price that GEOPRYZMAT company offers is quite competitive, for 19990 PLN customers can get not only receiver itself but also data collector, field software, carbon-fiber pole with grip, 2 batteries, charger, cables, tribrach with optical plummet, program for reporting and carrying case for all accessories.

KOLIDA knows that on one hand, Polish surveyors are concerned about price, on the other hand, their concern is on quality, warranty life or after-sales service. After experiencing the wonderful performance of K9T, these concerns disappeared.

In one phrase: Ideal product for all customers!

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