Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
WAVESHARE GNSS L1+L2+L5 Multi-Satellite Multi-Frequency Four-Wire Helical Active Precision Positioning Antenna, Q25, Q391. Connector type: SMA Inner Pin 2. Protection rating: IP67 3. Four wire helical antenna for GNSS, featuring high gain and wide circular polarization coverage angle 4. Receives more low elevation satellite signals, improving positioning performance; suitable for smart home, smart agriculture, and high precision map applications 5. Four wire helical structure with wide circular polarization coverage angle, enhancing low elevation satellite signal
1. Connector type: SMA Inner Pin
2. Protection rating: IP67
3. Four-wire helical antenna for GNSS, featuring high gain and wide circular polarization coverage angle
4. Receives more low-elevation satellite signals, improving positioning performance; suitable for smart home, smart agriculture, and high-precision map applications
5. Four-wire helical structure with wide circular polarization coverage angle, enhancing low-elevation satellite signal reception capability
6. High gain, low noise figure design, supports multi-frequency, multi-system GNSS signal reception
7. Small size, lightweight, flexible installation, suitable for various devices and applications
8. Uses SMA interface, supports RF transmission and coaxial DC bias feeding function
9. Meets IP67 protection requirements, suitable for long-term stable operation in outdoor environments
Antenna characteristics
1. Frequency range:
- GPS: L1/L2/L5
- BDS: B1/B2a/B2b/B3i
- GLONASS: G1/G2
- Galileo: E1/E5a/E5b
2. Antenna gain: Q25 2dB; Q39 2.5dBi
3. Characteristic impedance: 50Ω
4. Polarization: RHCP (Right-hand circular polarization)
5. Coverage angle: 360 degrees
6. Dimensions: Q25 58.70 x 27.70 mm; Q39 40.80 x 44.30 mm
Amplifier characteristics
1. Gain: Q25 37dB; Q39 28dB
2. Noise figure: 1.5dB
3. Operating voltage: Q25 3.3V ~ 16V DC; Q39 3.0V ~ 16V DC
4. Operating current: Q25 13mA; Q39 15mA
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 137 reviews
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Product Reviews
★★★★★ 5
Compra excelente
Excelente y buen precio
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Reviewed in the United States on November 14, 2024
★★★★★ 5
The best shoe brand I have found for toddlers! Exceptional quality
Size: 12 Little Kid, Color: Black/Beige
I have ordered a handful of shoes from Mini Melissa in the past, so I knew to size up. I typically order 1 to 3 sizes larger than what my daughter currently wears depending on the season and type of shoe. For this shoe, I ordered about 3 sizes up, so that she will be able to wear them next spring / summer and I am glad I did. They are a little large on her now, but I know we will get a lot of use out of them next summer playing in the yard, pool and beach! As with all Mini Melissa shoes, the first thing I do when I open the box is smell them - their shoes have the most pleasant scent! They make the best jelly-like quality shoes; they are absolutely worth the price for the quality and style you receive. They hold up very well - they are the only shoes that she outgrows before the shoe breaks down or looks unwearable. My daughter has worn many of their styles, and has never gotten a blister or complained about the comfort. They are supportive, but flexible and even as young as she is, she gets so excited for cute shoes! I ordered the beige and black for something neutral we can wear with many different outfits and that won't show dirt on the sole. The color is exactly as pictured. I really appreciate that top straps are functional and adjustable. She has a bit of a wider foot, so this allows us to get even more use out of them. I am very glad I ordered these and will continue to tell my friends about what I find to be the best shoe brand for toddlers and kids!
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Reviewed in the United States on September 10, 2025
★★★★★ 3
Summer Slides
Size: 1 Big Kid, Color: Lilac/Glitter
-Slide is sturdy and well made;
-Color is very attractive and true to size;
-My Granddaughter loves them.
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Reviewed in the United States on May 31, 2024
★★★★★ 4
Size
Size: 3 Big Kid, Color: Black/Beige
Comprar un size más grande de los que usan
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Reviewed in the United States on June 5, 2025
★★★★★ 5
El size se ajusta a la medida
Size: 12 Little Kid, Color: Pearly Beige
Bellos a mi niña le encantaron buena calidad
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Reviewed in the United States on April 6, 2026