Digital TV Exciter Professional for TV Station

This Digital TV Exciter is a newly developed digital TV exciter using software radio technology.

Digital TV Exciter

Overview:

This product is a newly developed digital TV exciter using software radio technology. The digital TV excitation board using the built-in new technology FPGA + DDS technology architecture, full patch welding process and very few components ensure excellent product quality reliability and performance consistency while obtaining superior indicators. The device has 2 ASI inputs, 1 ASI loop out, and 1 RS232 interface. Support built-in GPS module (optional), support 2 IP inputs; fully support all working modes covered by various digital TV standards, with GPS 10MHz and 1PPS input and output ports; support single frequency network, satellite single frequency network and multi frequency network Working mode; support linear and nonlinear adaptive correction, nonlinear correction ACPR increase 12db (typical value), linear correction in-band flatness correction gain 10db (typical value), can improve the output performance of the transmitter. The frequency range of the exciter is 30~960MHz, with excellent RF output performance and frequency stability, and supports local and remote configuration of modulation parameters. Stable and reliable work, high-efficiency switching power supply, real-time display of working parameters, the exciter adopts one 19 “standard aluminum alloy chassis, which can be widely used in the production and testing of digital TV broadcast network composition and set-top box design, and suitable for all levels of TV stations.

Features:

● The digital TV exciter board with built-in brand new FPGA + DDS technology architecture, superior performance, high reliability and good consistency. It fully supports all working modes covered by various standards of digital TV broadcast exciters, and supports single / multi-frequency network mode simultaneously supporting multi-carrier and single-carrier.

● Supporting linear non-linear self-adaptive correction pre-distortion function, advanced self-adaptive algorithm, call the corresponding correction curve according to the communication interface instructions, especially optimized for multi-body high-efficiency power amplifier, the correction effect is excellent.

● Built-in GPS module (optional), supports 2 IP inputs, supports full duplex, single network port simultaneously bidirectional transmission, supports automatic switching of four input signals, mutual backup, and supports the effective bit rate of all input code streams at the same time The ability to test. When the effective bit rate of the main channel is lower than the threshold value, it will automatically switch to the next stream with the effective bit rate higher than the threshold value and send an alarm, and the switching time is less than 1 second; the switching sequence is analogous, if all The effective bit rate of the channel does not reach the threshold, keep the original main channel broadcast, do not switch, and send an alarm; when a bit rate of the channel is lower than the threshold (settable), send an alarm; the exciter RF normal power output when there is no code stream input.

● Excellent phase noise and MER performance, MER≥48db

● RF frequency output range 30 ~ 960MHz, 0.1Hz stepping, constant temperature crystal oscillator, frequency stability up to 0.1ppm, support 10MHz monitoring output, local oscillator monitoring output and RF monitoring output

● Supporting transmitter output signal monitoring, the accuracy of RF index output by transmitter MER monitoring is not less than 40db, the accuracy of shoulder monitoring is not less than 50db, and the error is not more than 2db.

● Adopt modular design concept, which is convenient for long-term maintenance and upgrading.

● It has MLC and ALC control functions, there is no shock pulse of power ON/OFF and it’s using power output slow rise function, which can protect the transmitter. And there is whole machine and component level lightning protection measures. Perfect protection measures can reduce equipment damage.

● Supporting Web network management, with intelligent network management and monitoring, and with external RS232, TCP / IP and other communication interfaces. It has real-time detection of the working parameters of the exciter and computer control software with perfect functions, and has self-diagnosis function. It has various monitoring and alarm functions, various technical parameters can be read through the front panel LCD display.

● Using famous brand’s high-quality switching power supply which has protection measures such as over-voltage, over-current, under-voltage, over-temperature, short circuit, anti-lightning strike, etc., it has high efficiency, good voltage regulation range, and strong ability to adapt to external power changes.

● Adopt high-resolution LCD screen and multi-button design to make the exciter compact in structure and beautiful in appearance.

Digital TV Exciter Principle Diagram:

Technical Specifications:

RF output

1. Working frequency band: VHF / UHF

2. Output power: -39.9dBm～+ 9.9dBm

3. Output impedance: 50Ω

4. RF output interface: N-50K

5. Useless transmission: ≤-50dB in adjacent channels;

≤-60dB outside adjacent channels

6. In-band unevenness: <± 0.5dB

7. Band shoulder: ≥60dB

8. MER: ≥45dB

9. Phase noise: <-75dBc / Hz @ 10Hz

<-118dBc / Hz @ 10kHz

<-98dBc / Hz @ 100Hz

<-108dBc / Hz @ 1kHz

<-120dBc / Hz @ 100kHz

<-132dBc / Hz @ 1MHz

Signal input

1. Digital video signal input: 4 channels ASI input, DVB standard, BNC interface

2. TS stream IP input (optional): 2-way UDP multicast mode code stream, 10/100/1000M, RJ interface

3. Reference clock input: 10MHz, BNC interface

4. Second pulse input: 1PPS, BNC interface

5. RF input: Pre-distortion RF input, BNC interface

Modulation parameters

1. Digital TV standard (one of which can be selected according to requirements):

1) Chinese terrestrial digital TV standard: DTMB: GB20600-2006

2) European terrestrial digital TV standard: DVB-T / T2: ETS1300744

3) Japanese terrestrial digital TV standard: ISDB-T / ISDB-TB

4) American terrestrial digital TV standard: ATSC-T

2. Modulation method: QPSK, 16QAM, 64QAM, 256QAM (normal or rotation)

3. Bandwidth: 6M, 7M, 8M

4. Guard interval: 1/128, 1/32, 1/16, 19/256, 1/8, 19/128, 1/4

5. FFT mode: 1k, 2k, 4k, 8k, e8k, 16k, e16k, 32k, e32k

6. FEC coding rate: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6

7. FEC length: short (16K), long (64K)

8. Working mode: MFN / SFN

System parameters

1. LCD displays various parameters

2. Button or network interface for parameter setting

3. Support online software upgrade

Physical parameters

1. Working environment temperature: -10～＋45 ℃

2. Dimensions: 483mm (width) × 44mm (height) × 300mm (depth)

3. Weight: 4Kg

4. Power supply: single-phase 100VAC~240VAC, 50Hz

5. Power consumption: <25W

Payment Method

We accept online payments via paypal, credit and debit cards. We also accept western union, money gram and bank transfer.

To order goods online and pay them via paypal, credit and debit cards, simply add your selected items to your basket, and proceed to the checkout, where you will be guided through the payment process.

Payment via PayPal:

1. You have your PayPal account, then choose the PayPal to complete the payment directly

2. If you want to use the PayPal payment, but you don’t have one PayPal account, please register one first.

Note: Choose the PayPal payment, you can choose your country currency, we accept all the currency.

Payment via Debit and Credit Card:

1. You click MasterCard, Visa Credit Card, American Express, Discover payment directly, you will be redirected to the PayPal website, then choose the payment method again, and fill in your card information to complete the payment.

2. You click the PayPal&Credit, you will be redirected to the PayPal website, the one is PayPal payment, the other one is Pay with Debit or Credit Card payment. Choose one to complete the payment.

Note: Your credit card will be charged upon placement of your order.

Payments via Western Union, Money Gram and Bank Transfer

If you would like to place your order, please contact us with the following information:

E-mail: service@uncuco.com

WhatsApp: +8615989288128

Your billing and delivery address.
Your full name, phone number and email address.
The list of items you'd like to purchase.
We will get back to you with a proforma invoice, and the directions for the final step to complete the direct deposit.

The payment needs to be verified by our in-house accounts department and goods will only be dispatched on their verification. Only once the funds have reflected in our bank account, will the goods be allowed to leave the store.
Please note that bank transfer transactions can take up to 4 business days to clear into our account. We will process your order as soon as your payment has cleared. To ensure a speedy turn around time, please notify us once you have made the deposit.

We offer cardholders the highest level of security in online shopping, irrespective of the type of card (credit or debit). All debit or credit card payments are processed via Activa System’s Secure Payment Gateway. All payment card information is entered exclusively on the bank’s 3D secure pages. We as the merchant do not store, have access to or sight of the payments card information. Should you select to pay with a payment card, you will therefore be redirected to secure pages administered by the Activa processing centre and a bank with which we have reached a card acceptance arrangement.

Verified by Visa & Mastercard
The Verified by Visa and MasterCard SecureCode trademarks displayed above allow each online purchase made with your payment card to receive additional protection via 3D Secure security protocols. 3D Secure is a unique service offered by MasterCard and Visa International that uses a One Time Pin (OTP) to protect a cardholder against unauthorized use of their card. Once activated, your card number cannot be used for online purchases at participating merchants without your One Time PIN (OTP). The OTP is sent to your cell phone during payment as the final step to complete the transaction.

SHIPPING AND DELIVERY

Shipping prices will be calculated at check-out, based on the weight of the goods, the country to which we are dispatching, and the shipping service you choose. If you place the order offline by email or phone, we will send you a proforma invoice including the shipping prices.

When will I receive my order?

The likely delivery timescale for orders will depend on the availability of the items you order, the delivery method you choose (where applicable) and the shipping destination country.

Delivery times can be calculated based on formula: Time to stock + 7days~15days ( The time shipping company needs deliver the products to address in your country)

Time to stock is the number of days we need to prepare your order for shipment or how long manufacturer or supplier needs to deliver the product to our warehouse.

Delivery tracking

We use DHL or Fedex or UPS or EMS express service for our deliveries. The tracking number will be sent to you by email as soon as we will ship the order. Please note that no information will be available for the tracking number until the shipping company has actually picked up the package. Please allow up to one business day for tracking information to become available. All deliveries require a signature.

Please note

We are only able to dispatch goods once payment has been received.
All orders are subject to approval by our verification department. We will notify you by phone or email should your order be delayed.
If, for any reason, we cannot supply a product you have ordered, we will contact you via email or phone and place your product/s on back-order once you have agreed you would like to wait. If you choose to put your order on back-order, we will provide you with personalized weekly updates and will notify you once your order has shipped. If one or more of your items is in stock and you are waiting on other item/s, you can have your order part shipped. A sales representative will keep you updated on the remaining portion of your order, and can provide tracking information for both shipments.