TSP Transmitter

TSP Transmitter

CW/Pilot Signal Transmitter

TSP pilot transmitter is a kind of special engineering instrument applicable to emulation and testing of indoor and outdoor signal coverage and evaluation and testing of signal interference. It is mainly used for simulating and outputting CW and modulation signals, i.e. actual pilot signals transmitted by the base station. Due to easy deployment and low cost, the instrument can be used as a substitute of actual base station in the test system for relevant tests of the simulating signal source.

TSP pilot transmitter, with compact structure, high portability and external large-capacity battery, is applicable to field or indoor engineering tests. Various combined modes are available and can be customized to meet various test demands of users. The instrument is generally applied in propagation model tuning, coverage evaluation testing and auxiliary design and engineering acceptance of indoor distrbution systems.

Category: .
  • Support the output of GSM, WCDMA, LTE, NB-IoT and LoRa modulation signals and CW signals.
  • Wide band: support the frequency range of 700MHz – 2,700MHz/6000MHz. Frequency adjustment step is 10kHz, meeting the needs of standard signal test.
  • In the CW mode, the frequency and power are adjustable. In the modulation mode, the frequency and power are adjustable, and the BSIC code of GSM, scrambling code of WCDMA, power of CPICH and Channel, PCI and bandwidth, and PCI of NB-IoT can be set; the modes of Standalone, Inband and Guard-band are available; and the PCI and S7-S12 waveform file of LoRa can be configured.
  • Large power adjustment range: 0-43dBm, with the step of 0.5dB.
  • The power, frequency and other parameters can be remotely set via APP. The instrument is easy to operate and carry, with the effective operating distance of 10m, avoiding radiation injury resulting from high-power transmission.
  • Integrated design: small size (200×110×230 mm) and light weight (4.5kg). With the external battery, the instrument can continuously work for 5-8h, which is applicable to outdoor complex environments.
  • The instrument can be configured flexibly, and the frequency band and power can be customized according to user demands.

Product features

  • Support the signal emulation output of the existing multisystem network and the Internet of Things
  • Support terminal test applications
  • Large power adjustment range
  • APP remote control and simple deployment

Typical applications

  • Propagation model tuning test
  • Micro base station planing test
  • Static scene loss test
  • Distribution system acceptance test
  • Multi-operator interference evaluation

Support signal emulation of the existing multisystem network and the Internet of Things

A single TSP pilot transmitter meets the needs of CW and modulation signal output of all standard protocols and the protocol of the prevailing Internet of Things, saving the fund investment of customers and bringing conveniences for the user to test various signals.

Signal source for 5G frequency check

TSP transmitter support generate CW signal in 700MHz – 6000MHz. With the accurate power output and 0.5dB output adjust step, it is suitable 5G frequency check.

Large power adjustment range

The dynamic adjustment range of a single instrument is 43dB, meeting test needs of indoor and outdoor scenes.

APP remote control and simple deployment

The transmitter is a kind of engineering test instrument, which should be easy to deploy and operate for tests in various scenes. TSP transmitter is controlled by APP within 10m, facilitating remote operation and avoiding radiation injury caused by radio waves in high-power transmission of signals.

Propagation model tuning

Background: The propagation model is used for describing and reflecting the characteristics of the actual wireless signal propagation environment and rules of signal changes to certain degree via one mathematical mode. It represents the propagation environment of specific scene, and characterizes the radio wave propagation loss of specific environments or propagation paths. It mainly focuses on slow fading caused by shadow effects of barriers on propagation paths. The geographic types and topographies of various countries and regions vary greatly. Some parameters of one model to be applied in various regions must be modified, which is known as propagation model tuning.

Solution: As an simulating signal source, TSP pilot transmitter is able to output CW signals. The signal parametersincluding geographic information are collected by the receiver by means of field testing, and the output data are imported into the planned software to adjust model parameters.

Micro base station planing of indoor distribution system

Background: With building of 4G networks and popularization of intelligent terminals, data services are developed rapidly, and user behaviors of indoor scenes are more intensified. Operators can build indoor distribution systems to win indoor data traffic, improve the operation profits, expand new businesses and maintain the user loyalty. In order to improve the quality and management capability of the indoor distribution system, simplify the building of indoor distribution system, the new indoor distribution system was greatly promoted in 2017 in China, and more micro base stations were built. By means of emulation testing of new indoor distribution system, the layout problems of micro base stations can be solved effectively.
Signal coverage testing is able to accurately quantifying and locating base station to simulate the actual deployment.
CW signal and pilot signal are the most common signals for emulation and performance testing. In most of the indoor scenario, signal can be blocked by obstacles or affected by complex area then cause propagation loss. CW signal testing result often varies compare to actual performance in terms of narrow and non-identical indoor environment that leads to RSSI difference. In contrast, pilot signal behaves identical with the actual signal and can be further evaluate by CINR ratio. Thus pilot signal is the primary requirement for micro base station distribution planning.

Solution: As an simulating signal source, TSP pilot transmitter is able to output modulation signals of operating systems of LTE and other existing networks. The cell signal parameters(Channel, PCI, RSRP, RSRQ, SINR, etc.) are collected by the receiver by means of walk test, and the actual coverage of the base station is simulated to simulate the coverage of base station signals, further confirm the locations and quantity of base stations and provide accurate data for the layout of indoor distribution system.

Static scene loss test

Background: The scenes of indoor distribution system vary. Before the distribution system is designed, the signal attenuation in actual scenes should be understood, such as conference rooms, offices, restaurant, hotels, classrooms, etc. The signal attenuation emulation tests of various scenes can provide calculation reference for the indoor distribution system design and improve the final coverage of the distribution system.

Solution: As an simulating signal source, TSP pilot transmitter is able to output modulation signals of operating systems of LTE and other existing networks. The loss properties of actual signals in special scenes (such as doors, walls, fixed barriers, etc.) can be simulated by means of testing with the receiver at the given point, to provide data for the indoor distribution system design.

Acceptance of traditional indoor distribution system

Background: The cable, passive device and ceiling antenna are used as signal transmission parts of the traditional indoor distribution system. The coverage should be verified in acceptance. At the same time, the conformity of the downlink power attenuation, uplink power attenuation and antenna downlink power to design values should be verified.

Solution: As an simulating signal source, TSP pilot transmitter is able to output modulation signals of operating systems of LTE and other existing networks. Cell signal parameters(such as the Channel, PCI, RSRP, RSRQ, SINR, etc.) are collected by the receiver by means of walk test, and the acceptance of indoor distribution system is carried out based on analysis results of wireless signal coverage. The downlink power attenuation, uplink power attenuation and antenna downlink power are subject to sampling inspection with the handheld power test instrument, to verify the conformity to design values. The compliance of the indoor distribution system with engineering acceptance standards is evaluated based on the wireless test and power test data. Faults of the distribution system are located, in combination with the handheld antenna/feeder test instrument.

Multi-operator interference evaluation

Background: At present, networks are run by various operators. As the stations of operators are concentrated and frequency resources are adjacent to each other, mutual influence indoors and outdoors are unavoidable. Operators can evaluate the influence of other networks by simulating the coverage of competition networks and downloading the service rate, SINR value and other parameters.

Solution: As an simulating signal source, TSP pilot transmitter is able to output modulation signals of operating systems of LTE and other existing networks. RF signal parameters (such as the Channel, PCI, RSRP, RSRQ, SINR, etc.) of each operator are collected by the terminal. Change the channel, power and system of the transmitter, and observe the SINR value of the tested cell on the terminal. Evaluate the influence of competition networks by service testing.

Device type

Applicable Network System 

Frequency Step

TSP transmitter (700MHz to 2700MHz/6000MHz)

GSM

WCDMA

TDD-LTE 

FDD-LTE 

NB-IoT

LoRa

CW

10KHz or 100KHz

Electrical Characteristic

Output Power

0dBm to 43dBm

Frequency Step

10kHz

Power Step

0.5dB minimal

Power Accuracy

±0.5dB

Spectrum Mode

CW mode, Pilot mode

Out-of-band Spurious

≤-50dBc (beyond the operating frequency of 200kHz)

Second Harmonic

≤-15dBc (typical)

Operating Temperature

C to +50°C

Storage Temperature

-40°C to +70°C

Mechanical Features

Dimension

200mm×110mm×230mm

Weight

4.5kg (9.9lb)

RF Interface

N-type female connector

Power Supply

220V AC; 28V DC; max power consumption: 140W

Communication Interface

Wi-Fi

Model

Description

T3919A

TSP Transmitter,  700MHz to 2700MHz

T3919AS

TSP Transmitter,  700MHz to 6000MHz

TSPT-AS022

Transmitter control APP

Accessories Model

Description

TSPT-S001

GSM license

TSPT-S003

WCDMA license

TSPT-S005

TDD-LTE license

TSPT-S006

FDD-LTE license

TSPT-S007

NB-loT license

TSPT-S008

LoRa license

TSPT-AS001

5m length with N-type connector

TSPT-AS002

Omni directional antenna 870 to 960 MHz, 5dBi

TSPT-AS003

Omni directional antenna 1710 to 1990 MHz, 5dBi

TSPT-AS004

Omni directional antenna 2000 to 2200 MHz, 5dBi

TSPT-AS005

Omni directional antenna 2300 to 2400 MHz, 5dBi

TSPT-AS006

Omni directional antenna 2500 to 2700 MHz, 5dBi

TSPT-AS007

Omni directional antenna 3300 to 3600 MHz, 5dBi

TSPT-AS008

Omni directional antenna 4800 to 5000 MHz, 5dBi

TSPT-AS009

Tripod, to mount antenna for the field test

TSPT-AS011

Portable carrying case

CASE 1 – MAJOR PILOT SIGNAL GENERATOR SUPPLIER IN CHINA

For its powerful performance, Transcom TSP Transmitter has received wide acclaim from customers including operators, base station equipment manufacturers and research institutes. It shows that it supports wide test frequency range, high output power adjustment range, convenient Wi-Fi remote control, and support all the mainstream mobile and IoT signal modulation.

Hundreds of Transcom TSP Transmitter was sold in China. Currently, More than 100 units of pilot signal transmitter holding by Chinese operator China Unicom and China mobile is Transcom product. Reference customer also include Huawei and Datang Telecom.