Spectrum Monitoring
CRC

Radio frequency monitoring center

Radio frequency monitoring center of Mongolia was established as “Radio frequency receiving station” in 1960. The radio frequency monitoring of that time was purposed to monitor the operation of medium and long frequency radio broadcastings, being implemented on whole country. Moreover, the monitoring operation was increased in 1980s and the major functions to monitor TV broadcasting and radio broadcasting operations. Rapid increase in the consumption of new types of radio equipment since the last 1990s resulted the establishment of necessity to increase operation and functions of “radio frequency monitoring center”, as well as training human resource etc.

Despite the deserved necessities to improve radio frequency planning and radio wave monitoring operations to the international level and to have the skilled human resource, which is able to monitor all wave spectrums, the innovation had been impossible for a while due to the lack of financial resource required for the innovation of measure equipment and preparation of the human resource. Radio frequency monitoring center was transferred to the Communications Regulatory Commission in 2002, since which the Commission has been implementing the systematic actions to improve and innovate this “radio frequency monitoring center”.

  • 2002-2004: Monitoring function of “Radio frequency monitoring center, which was its the major responsibility, was systematically upgraded to the measure and monitoring functions, according to the advice of ITU. Training and qualification process of monitoring engineers and technicians was commissioned.
  • 2005-2008: Actions taken to stabilize the monitoring background, such as systematic innovation of equipment, which had been used for measure and monitoring, providing mobile and small-sized measure equipment and increase the number of equipment that were urgently required, with the investment of CRC.
  • 2009-2010: With support of the World Bank and joint investment of CRC, a Project was developed and implemented to innovate “Radio frequency monitoring center” and totally renewed the set of monitoring equipment. The 3 kinds of monitoring stations, which are fixed monitoring station, mobile monitoring station and portable monitoring, which are all compliant with international standard, were provided and Mongolia has become able to monitor all the equipment being operating with radio wave at the first time in terms of technology and human resource. Under the framework of the project, monitoring engineers and technicians were participated in manufacturing practice and training for operation and maintenance of the new equipment in Israel.
  • 2011-2012: The Project of “Developing national spectrum management” was implemented with support of the World Bank, which results the distribution, registration, issuance and monitoring operation of the radio wave become compliant with the international standards. During these periods, engineers and technicians are being attended in both foreign and domestic trainings and seminars every year.

General functions of radio frequency monitoring center were updated and become compliant with the international level, resulting sharp improvement in radio wave monitoring and the tasks, which were unreachable through the previous years including determination of interferences between mobile communication and all kinds of wireless communication devices and determination of radio wave impacts to human body etc. became reachable. As a result of these actions, operation of the monitoring station increased and the station was innovated and re-organized as the “National radio frequency monitoring center”. 2-floor construction for the Monitoring Center for office use was constructed, commissioned and fully decorated in 2012. Through implementing the above-mentioned systematic actions, an internationally recognized system is now constructed to resolve more than 500-700 complaints about the radio wave interference submitted by individuals and entities per year, to draw more than 50 conclusions on radio wave impact to the human body and the whole set of monitoring on radio wave consumption in a province per year.

  • Main activity of Radio frequency monitoring center
    • Spectrum occupancy measurement;
    • Neighborhood channel interference measurement;
    • Field strength measurements;
    • Detect illegal frequency ;
    • Find unlicensed transmitter;
    • Check all kind radio transmitter’s parameter;
    • Solve interference reason.
  • Configuration of the inspection
    • Within the main tasks;
    • Within the planning inspection;
    • Within the random inspection;
    • According to consumer complaints.

Radio frequency interference

Interference with radio frequency (called radio frequency interference or RFI) is an electromagnetic induction, one of the electromagnetic radiation emitted from external sources or uses radio waves equipment (TV, FM radio receivers, mobile phones and other communications equipment etc.) affect the barrier. That interfere with radio equipment the next interruption of information and support, active or degradation of the receiving equipment or limit the effects of the activities. This effect can serve up to a total loss of data containing information data loss. The impact a change in the electrical current transitional power source or environmental factors such as sunlight and thunderstorms can be any kind.

War impacts of radio frequency electronic form, whether intentionally or unintentionally detected as errors can occur due to emission. For example, as intermodulation phenomenon. Radio-frequency effects are often in urban areas, FM radio and television broadcasting, cellular phones and cell phone reception and the professionally designed communications stations have no influence. In other words, the user equipment (wireless Internet access point and wireless telephones used at home, car MP player and other types of wireless Bluetooth connection and household equipment, etc.), communications devices, in addition to impact influence on each other.

Measurement stations and devices

  • established in 1960, first radio wave receiver stations
  • in 2009, mounted new fixed and mobile portable radio wave monitoring stations

Fixed Monitoring Station (FMS)                     

Frequency range: 300 kHz – 3 GHz

Functions:   Monitoring

Direction Finding

Spectrum Occupancy

Field Strength

Mobile Monitoring Station (MMS)

Frequency range: 20 MHz - 26.5 GHz

Functions:   Monitoring

Direction Finding

Spectrum Occupancy

Field Strength

Portable Monitoring Station PMS)

Frequency range: 20 MHz – 26 GHz,

Functions:   Manual DF

Spectrum Occupancy

Field Strength

  • in 2014, new Transportable Monitoring & Direction Finding System (TMDFS), support of Republic of Korea
 
 

In 2015, TMDFS – Transportable Monitoring and Direction Finding System

Model No:      ADTMS-1000

Functions:     -Frequency

-Field strength

-DF

-Modulation

-Band with

-Frequency deviation

-Audio monitoring andrecording

NETIMIZER PM10 is designed to effectively measure a customer’s overall service and call quality. Compact yet powerful, it facilitates drive tests, unattended benchmarking and in-building tests. And because it’s portable it can easily be used for walk tests.
  • Battery pack operates for five hours, fully loaded.
  • A scalable platform that supports up to ten (x10) test mobiles simultaneously.
  • When PM10 is combined with PANDORA QoS, it can assess and audit network performance. This results in:
    • Seamless network application testing.
    • Reduced costs, with a single, scalable platform.
    • Improved test detail and precision.
    • Easy management of significant live services.
    • Enhanced time-to-market for new services.
  • Upload KPIs and test results in real time.
  • Smartphone-friendly.
  • Conduct standards-based Voice MOS tests for voice quality analysis.
  • Supports HSUPA, EVDO Rev.A, Rev.B, CDMA2000, GSM, EDGE,GPRS, WCDMA HSDPA, HSUPA, HSPA+, DC-HSDPA, WiMax, LTE (TDD and FDD), LTE-A.
  • Bluetooth / MOS cable-friendly.
  • Compatible with a variety of handsets – feature phones and smartphones.
R&S®DDF007 Portable Direction Finder

The R&S®DDF007 portable direction finder has an integrated, fast wideband receiver that covers a very wide frequency range. The battery-operated unit relies on high-precision DF methods.

-Wide frequency range from 20 MHz to 6 GHz (DF mode) and 9 kHz to 7.5 GHz

  • -Wide frequency range
  • Integrated, fast wideband receiver
  • High-precision DF method
  • Integrated map display

HF Antenna
 

Description

Origin

The number of pieces

1

HF antenna, fidyer

Germany, Titaniks Co.

1

2

Antenna Rotator and control devices, cables

USA, Pro.Sis.Tel

1

3

Antenna tower, 20 meters

USA, Rokhn

1

Dashbalbar
LAST UPDATE: 2016/04/26
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