Dashing nanotechnology GLONASS

"When the elephant's cage will read the inscription" buffalo, "do not believe your eyes»
(Kozma bars)

The official website of AGISLTD recently has information on the certification requirements of the electromagnetic compatibility of various types of security system of voluntary certification GOST R serially produced indicated by "Modem determining the coordinates of GPS / GLONASS and telemetry moving object and transmitting data over GPRS / EDGE / HSCSD / HSDPA / CDMA, model A-GIS-35.001 (plastic housing), model A-GIS-35.002 (aluminum body). " With the certificate of conformity, all as expected.

But this is not interested in principle, a pleasant fact, but the fact that the certification of GPS / GLONASS terminal conducted to meet the technical specifications (TU), approved in 2006 (see. Certificate issued by the relevant sections). Initially such devotion native Russian GNSS already distant 2006 pleasantly surprised. However, analysis of the title page and one page of the TU showed that "Glonass and did not smell," I'm sorry for this pun.

While on the other hand, the opportunity to work on this series modem signals GNSS GLONASS / GPS is positioned as an option ...

11 ph inside and outside via aka-mik





function GLONASS / GPS is clearly advertised for this model. In addition, after opening with a modem was found on the Certificate of Conformity navigation receiver GLONASS / GPS signals - CH-4706, manufactured by JSC "KB Navis", issued by the certification body Voentest in the system of voluntary certification of measuring instruments. It is obvious that this navigation unit and implementing dual-system function of the test modem.



Out of curiosity, it was decided to get acquainted with the internal modem device to assess the quality of installation and circuit solutions used by the manufacturer.



...



However, when viewed from the body, it was found that the front and rear of the case on four mounting screws somehow cut slots. Therefore, these screws had to "unscrew" non-traditional methods. After opening of the housing board was removed from the device installed on it radio-electronic components



Appearance fees from the installation of the navigation receiver CH-4706



At the initial examination board were found installed on it: navigation receiver CH-4706, GSM-modem Wavecom Q2687 company and an unknown component, indicated by the arrow (much like a miniature GPS device). Apparently, this is referred to the navigation GPS Receiver SIRF III.



A more detailed study of the board of the analyzed articles were found (ATTENTION !!!) that the navigation receiver CH-4706, is present on the board, in fact, the board is not installed! (under installation in this case refers to a compound of the relevant conclusions of the receiver with the conclusions of the board by technology SMD (surface mount) to the normal functioning of both the navigation receiver and the board as a whole).

Do not lend themselves to understanding the motives of the final products, but navigation receiver CH-4706 is attached to the board using double-sided tape, and foam inserts between the contacts of the receiver and the surface of the board



Installation of navigational receiver CH-4706 using "technology skotchevyh»



Installation of navigational receiver CH-4706 using foam inserts (visible in the upper right corner)



Installation of navigational receiver CH-4706 using foam inserts (reviewed below)

Apparently, it has the option of GLONASS / GPS, modem manufacturer stated: receiver GLONASS / GPS is, the only work he will never be as simply not what is connected. Apparently, for the practical implementation of this option, the end user must once again pay for "Connection": adhesive tape and inserts are removed and navigation receiver CH-4706 to the board properly "soldered".



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