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Archive for the ‘Contact’ Category

November 1st, 2014
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Outdoor Omni Antenna for Security Networks

fire brigade

Our monopole antenna for Tetra 400 / 800 and Trunk Radio Systems.  These are ideal for outdoor sites, BTS and oDAS. They withstand wind loading and are very durable and stable in performance.

monoploe

Datasheet

Detail specifications are here:

pdficon DTQJ400B Outdoor Omni Antenna (for Tetra 400 and Trunk Radio)

pdficon DTSD656D54DF Outdoor Omni Antenna (for Tetra 800 / CDMA / GSM)

Quotation & Further Details

We focus on high quality and competitive products,  do like our page so we can keep you updated of our products and services, ask for a quotation here:

www.facebook.com/dragontechglobal

Interference to your 3G and 4G services?

February 9th, 2014
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newBetter Data with our New Bandstop Filter

With more and more of our clients having problems with LTE and 3G interference from different RF sources, this new filter helps prevent any interference from the frequency band 1983.1 – 1990 MHz.

Interference Prevention with Customisation

We can customise any Passband and Stopband for your case with 30 to 50 dB rejection suiting your needs. Normally 30dB rejection is adequate in most cases, meaning that the interference is supressed to at least 20 times lower in power. This will improve voice and data significantly, bring more traffic, more revenue and happier customers in the network with improved LOYALTY!

 

Filter with DIN connectors

Filter with DIN connectors

Specifications
Passband MHz  1960-1980  2150-2170
Stopband MHz 1983.1~1990
Insertion loss dB <1.0 @ 1960 – 1979 MHz<1.7 @ 1979 – 1980 MHz<0.5 @ 2150 – 2170 MHz
Stopband Rejection dB >45 @ 1983.1~1990MHz
Return Loss  dB >15 @ 1960 – 1980 MHz>18 @ 2150 – 2170 MHz
IM3 dBc <-160 @ 2x40w carriers
Connector 7/16 DIN
Impedance Ω 50
Power dBm 50 Average Power54 Spontaneous Power

 


New Circulators for LTE

January 29th, 2014
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New high quality circulators in our family helps you get the most out of your Distributed Antenna Systems.

 

Stable Performance under different temperature  High performance short lead-time

Stable Performance under different temperature
High performance short lead-time

For LTE 2600

Model TH2528XS-1
Frequency Range
2500-2700MHz
Loss ≤0.3dB
Isolation ≥23dB
VSWR ≤1.20
Power 100W
Connector N female
Direction Clockwise
Temperature Range -30~+70 °C

circulatorohs

For LTE 700

Model TH3434ES-1
Frequency Range
745-795MHz
Loss ≤0.3dB
Isolation ≥23dB
VSWR ≤1.20
Power 200W
Connector N female
Direction Clockwise
Temperature Range -30~+70 °C

We have been supplying high quality circualtors for many years for:

  • Any common RF bands
  • Widebands

Please contact us for more details.

 

 


Tetra System for Sale

June 21st, 2010
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We have a TETRA system from Motorola which we would like to sell.

These are used by police and security forces worldwide. Some proerty management groups will use them too. These are like walkie talkie radio but they are digital and they have data communications capability.

The system we are selling has 3 cell sites and 200 subscribers. Condition is excellent.

System Overview

MTP850 Handset

If you have questions and are interested please contact us.

4G (Long Term Evolution LTE) Ready Antenna / RF Components

January 30th, 2010
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DragonTECH is

4G

Sounds Long Term, LTE is really round the corner, there are already existing comemrcial networks launched and surely there will be more with new markets for high speed data driving multi-media applications like You Tube and Facebook. Let’s take a look at the challenges posted to antenna systems.

New Frequency Bands for 4G

LTE supports flexible carrier bandwidths from 1.4MHz up to 20MHz, in many spectrum bands and for both FDD and TDD.

This means an operator can introduce LTE in both new and existing bands, for example, 2.6GHz (Band 7), Advanced Wireless Service (AWS) (Band 4), or 700MHz bands.

Unlike other earlier cellular systems, LTE will be quickly deployed on multiple bands. Click here to see Verizon’s Band.

Todate, this is a broad summary (click to enlarge):

LTE Frequency

Is my DAS really ‘Future-proof’ for 4G?

This post a challenge to the existing Distributred Antenna systems (DAS) which ‘flexibly’ supports 800 – 2500 MHz. This was good enough at the 2G times, so that DAS deployed back then are ‘future-proof’ for 3G systems.

It worked well until now.

4G will now definitely spread from 700 to 2700 MHz, rendering the existing DAS system vulnerable should the local regulator mandates the use of 700 or 2600MHz.

Challenges for RAN (Radio Access Network)

For the Network Operators, your mobile subscribers are adopting 3G services but the traditional 2G subscriber base keeps growing too. You face the need to expand both network layers for more capacity and coverage to improve both the quality of service and availability. And with the onset of LTE, you must further develop your networks and rationalize your investments to deliver profitable services.

All these calls for a Converged RAN that can support from 700MHz to 2700MHz.

DragonTECH has a solution

As an industry leader, DragonTECH has developed a series of  RF components and antenna to resolve this issue. These can be used for any DAS build for 2G / 3G now and the customer is ensured a smooth upgrade path to 4G in the very near future.

Contact us for more details.

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Your support echoes here … DragonTECH expands

November 14th, 2009
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Thanks for your support. Our Service Geographics has been ever expanding. We just updated our service  coverage map. I would like to post it here to tell you how much DragonTECH appreciated your friendship and support.

Service Geographic Coverage

Service Geographics

I bet you will never forget to bring that Jumper Cable along

November 14th, 2009
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3 way splitter with JumperWe will give you Spliiters with Jumper Cables Affixed!

We have a new series of Power Dividers that comes with the necessary Jumper Cables. The length and connectors can be customised.

This alleviates a lot of connections on site for a faster and easier implementation. In cases where clients are charged according to the BoQ this new idea greatly reduceds install cost.

We can customise Jumper Cables and RF components for you.

Check it out on our Products page.

New Product Launch – BTS Enhancement Solutions

October 24th, 2009
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TMA1

Tower Mounted Amplifier & Tower Mounted Booster

TMA & TMB

DTTMAB09-18-21

DragonTECH Tower Mounted Booster together with micro base station gives macro base station coverage with minimised investments. The result is lower infrastructure cost per square kilometre.

More Details…

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The China International Optoelectronic Expo

September 10th, 2009
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DragonTECH strives to be more easily accessible to the market. We participate the recent exhibition in Shenzhen, featuring the top vendors in the optical field.

The China International Optoelectronic Exposition (CIOE) is a worldwide renowned exhibition, which presents the most advanced optoelectronic technologies and innovations. The CIOE 2009 expects around 2,100 exhibitors to showcase products on 70,000 sqm from September 6-9. During the four days, more than 85,000 professional visitors will attend the exhibition. It is supported by all relevant Chinese government bodies, scientific academies, trade associations, and by domestic as well as international key players of the industry。

LED Display

LED Display

Stunning effects

Stunning effects

Exhibition booth

Exhibition booth

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Quadplexers

August 11th, 2009
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Its a more complex RF world.

Quadplexer with 2 antenna outputs:

IMG_3442

We are seeing more and more combined sites with multi operators. Apart from our POIs, we offer our diplexer, triplxer and now Quadplexers for both antenna site combining and also for use as POI.

Various options are available for Tetra 400 or 800 / GSM / DCS / CDMA / WCDMA.

Two versions are available:

  • Low loss High performance
  • Economic with slightly higher loss

Quadplexer GSM DCS WCDMA Tetra 410

Quadplexer CDMA WCDMA GSM+DCS

Please contact us for more details.

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