Specifications:
- Model No.: GNSSD0-10MHz
- Item Name: GPSDO Upgraded Version
- Power Supply: DC11.7-12.9V; ≤15W
- Antenna Power Supply: DC5V
- Compatible Satellite: For GPS+GALILEO
- 1PPS Output Waveform & Amplitude: Square Wave, 3.3Vpp
- 10M Output Waveform Amplitude: Sine Wave, 1Vrms, (13dBm+-3dB)
- RS232 Output:NMEA Protocol, 9600BPS
- Accuracy: After GNSS is locked, frequency accuracy can reach 5E-9 (0.05Hz@10MHz) within 5 minutes. Finally, accuracy will reach 2E-11 (0.0002Hz@10MHz)

Package Included:
- 1 x GNSS Disciplined Oscillator
- 1 x AC110-220-DC12V Transformer
- 1 x 5m GPS Antenna

FAQ:
Q1: What is GNSS? What is GNSSDO?
A1: GNSS stands for Global Navigation Satellite System, which refers to the group of satellites that are providing signals from space used to transmit and position data. And by definition GNSS provides a whole Global Coverage. GNSS itself includes several positioning terms like GPS, GLONASS, Galileo, Beidou and other regional systems.

GNSSDO is an abbreviation for Global Navigation Satellite System disciplined oscillator. Use GNSS timing to adjust clocks to make clocks more accurate.

Q2: What is the basic principle of the GNSS Disciplined Oscillator? Why is it more accurate than the atomic clock?
A2: The basic principle of the GNSS Disciplined Clock: The standard time signal output by the GNSS module is generally a second pulse (1 pps) to control or compare the frequency of the constant temperature crystal oscillator, and then output a signal to correct the frequency error of the constant temperature crystal oscillator.

Since the output of the GNSS signal has no cumulative error and long-term accuracy is high, the tempered constant temperature crystal oscillator is more accurate than the atomic clock.

Q3: Where is the GNSSDO applied?
A3: Usually, it is used as a standard source of reference in cellphone base stations.

Q4: Can it be used without the antenna?
A4: Yes. Without antenna, the GNSSDO is used as an OCXO with keeping performance.

Q5: Where to place the antenna? Can it be used indoors or next to windows? What can we do if GNSS fails to lock?
A5: Please use it outdoors, facing to the sky directly. Please not use it indoors or next to windows. When the antenna is facing to the sky, at least 1 / 5 of the sky area should be available. Otherwise, GNSS signal and frequency accuracy are poor due to small sky area.

When GNS cannot be locked, please put it in an open space or place an iron plate on the back of the antenna. Properly adjustable the distance between the iron plate and the antenna, enhancing the signal.

Q6: What to do if the antenna is not long enough?
A6: Extension cables can be added. For example, we used an 8m extension cable to test application environment.

Q7: Can the antenna connect to your CATV's antenna?
A7: No. There is no GNSS signal in your CATV.

Q8: How to use the equipment?
A8: Connect it to the antenna and make the antenna facing to the sky. Connect to DC12V power supply. And BNC port will output 10MHz and 1PPS signals.

Q9: Can I change the supported satellite by myself?
A9: Please not modify. It may make the GNSSDO fail to work.

Q10: Can it be used in HiFi field and in speakers?
A10: With accurate frequency, improved acoustic details, enhanced resolution and reduced background noise, it can be used in audio field.

Q11: The output signal of the GNSSDO is 10MHz. Does it support my DAC with 16.9344MHz?
A11: Yes. You can use a converter to change 10MHz signal into 16.9344MHz signal.

Package: Normally we use the standard exporting packaging. We also can according to clients' request .

 Shipping : 

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier  we are co-operating at present.

2. By Air: Delivery from the Shanghai airport to customers’ destination city air port.

3. By Sea: Delivery from the Shanghai sea port .

Q1. Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.

Q2. What about the lead time?

A: Samples arrived often need 3-5 days.

Q3. Do you have any MOQ (minimum order quality)limit?

A: Low MOQ, 1pc for sample checking is available.

Q4. How do you ship the goods and how long does it take to arrive?

A: We often ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping is also optional.

Q5. How to proceed an order?

A: Initially, let us know your requirements or application. Besides, We quote according to your requirements or our suggestions. Thirdly, customers confirms the samples and places deposit for formal order. Finally, We arrange the production.

Q6. Is it acceptable to print my logo on the product?

A: Yes. Please inform us formally before our product and confirm the design firstly based on our sample.

Q7: Do you offer guarantee for the products?

A: Yes, we offer one-year warranty for our products.

Q8: How to deal with the flaw?

A: Our products are produced in strict quality control system and the percent of pass is often maintained over 99.8%

Please do not hesitate to contact me if you need any further information

Whatsapp/Tel/Wechat: 8619902906050

Web: 

Address: Room 303 Building 2,Youpin Cultural and Creative Park,Zhangkeng,Minzhi Street,Longhua District,518131,Shenzhen,China(Mainland)