U-Ggb17s Dual Frequency External Gnss Antenna for Surveying

Product Description

Product Description U-GGB17S Dual frequency external gnss antenna for surveying

Features
1. Using multi feed point design to ensure the superposition of phase center and geometrical center which could minimize the influence of measurement error to lowest range
2. High gain of the antenna element and the direction map beam width to make sure the receiving satellites performance of low elevation mask
3. Resistance multipath effects board inside could reduce the measurement error caused by multipath
4. Water proof, shock proof and lightning resistance

Application
Survey antenna is the traditional RTK product standard antenna, can be widely used in land survey, marine survey, channel survey, seismic monitoring, bridge survey, container operation, etc.
Product Parameters

Antenna Specification
Frequency Range	GPS L1/L2, GLONASS L1/L2,Beidou B1/B2/B3
Impedance	50 Ohm
Polarization	RHCP
Axial Ratio	≤3dB
Azimuth Coverage	360°
Output VSWR	≤1.5
Gainn at Zenith	5.5dBi
Phase Center Error	≤2mm
LNA Specification
LNA Gain	40dB
Noise Figure	≤2.0 dB
Output VSWR	≤1.5
Ripple	±1 dB
Drain Voltage	3--18VDC
Current Consumption	≤45mA
Group Delay	≤5 ns
Mechanical Specification
Dimension	Φ146×58mm
Connector	TNC Female
Weight	440g
Base Screw Thread	5/8"-11UNC
Environmental Specification
Operating Temperature	-40°C to +85°C
Storage Temperature	-55°C to +85°C
Humidity	95% Non-Condensing

Detailed Photos
Packaging & Shipping
After Sales Service
The warranty period is 12 months. Within the 12 months, if there is any fault caused by non-artificial reason, which can be repaired by the customer themselves, we
can offer the spare parts to the customer free of charge. If there is any problem which cannot be repaired by the customer
themselves, the customer can resent the products to our factory for repairing free of charge, and the freight charge would be
shared by the customer and our company two sides.Under the circumstances out of the warranty period, if there is any problem, we
can repair free of charge for the customers, we just charge for the spare parts at the cost itself, and the freight charge would
be bear by the customers.
If there is any problem caused by human reason within the first year, the service would be the same as the service out of the
warranty period. Company Profile Tianjin Unique Technology Co., Ltd. is a high-tech enterprise that specializes in researching and manufacturing high accuracy GNSS
products and surveying equiupments. Our products refer to many fields including GIS (geographic information system), Land Survey,
Machine Control, SI (system integration), Agriculture, etc. Our aim is to provide the high-quality products and offer the best
solutions and services for our customers worldwide. Our Services & Strength 1.Any inquiries will be replied within 12 hours.
2.All our products have one year warranty, And we sure the products will be free from maintenance within warranty period.
3.All products will have been strictly quality checked in factory before sending out. FAQ 1.What are your prices? Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact us for further information.2.Do you have a minimum order quantity? Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website3.Can you supply the relevant documentation? Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.4.What is the average lead time? For samples, the lead time is about 7 days. For mass production, the lead time is 20-30 days after receiving the deposit payment. The lead times become effective when (1) we have received your deposit, and (2) we have your final approval for your products. If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate your needs. In most cases we are able to do so.5.What kinds of payment methods do you accept? You can make the payment to our bank account, T/T, credit card, Western Union.6.What is the product warranty? We warranty our materials and workmanship. Our commitment is to your satisfaction with our products. In warranty or not, it is the culture of our company to address and resolve all customer issues to everyone's satisfaction7.Do you guarantee safe and secure delivery of products? Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge.8.How about the shipping fees? We usually use delivery express, such as DHL, FedEx, UPS, etc.