Milltech Marine News

June 2023

Any questions about what AIS you should get?

Our AIS Comparison guide is an quick and easy way to sort through the marketing fluff and find the unit that fits your needs best. It has been updated for 2023 and can be found on the AIS Transponder product page or link directly here.

March 2023

Vesper Marine Cortex Gets Long Awaited Software Update

Cortex just got even better. Introducing the new and improved Cortex 2.0 software update. There's a new sleek user interface for Cortex handsets and some big improvements to core VHF functions to ensure you never miss a word. Cortex software 2.0 features new Squelch EQ

automated squelch with manual fine-tuning, omni watch multichannel scanning, and VHF audio recording and playback. Find out more here.

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Use our online Shopping Cart to make sure your location is served and to check shipping options and costs. For more information, click here. Please call or email with any questions.

AMEC GA-22 GPS Antenna

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Your Price: $84.95

Retail Price:$129.99

Your Savings:$45.04(35%)

Questions about this item? Be the first to ask here.

Part Number: AMEC-GA-22

Availability: In Stock

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Description
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GA-22 is our new GPS antenna designed for AMEC AIS products. It can also be a replacement for other navigational devices.

The GPS antenna is engineered to meet rigorous demands of marine environment. It is tested with AMEC AIS transponders and has passed all relevant environmental tests. Its UV resistant enclosure is IP67 waterproof. The built-in high performance LNA (low noise amplifier) ensures excellent sensitivity.

GA-22 has 2 mounting options: pole mount and base mount. It has 10 meter RG174 cable that facilitates routing and installation.

Specification

GPS ANTENNA
Center Frequency	1575.42 MHz ± 2
Bandwidth	10 MHz
VSWR	1.5 Max (Typical 1.3)
Axial Ratio	1.5 dB Typical
Radiation Eifficiency	-60%
Polarization	Right Hand Circular Polarization
LNA (LOW NOISE AMPLIFIER)
Frequency	1575.42 MHz
Gain	29 dB Typical @ 3.3V DC
VSWR	2 Max
Noise Figure	0.95 dB Typical
Out-Band Attenuation	20 dB min. @ fc ± 50 MHz
DC Power Input	DC 3 ~ 5 V
Power Consumption	5mA @ 3.3V, 8.5mA @ 5V
Output Impedance	50?
GPS ANTENNA & LNA
Frequency	1575.42 MHz
Gain	31 dB Typical
Noise Figure	0.65 dB Typical
Axial Ratio @ Zenith	1.5 dB Typical
VSWR	1.5 Max (Typical 1.3)
Impedance	50O
ENVIRONMENTAL
Operating Temperature	-30°C~+55°C
Storage Temperature	-30°C~+70°C
Relative Humidity	95% @ 40°C, non-condensing
Water Resistance	IP67
PHYSICAL
Dimension	81 mm (Dia.) x 81 mm (H)
Weight	303 g (incl. cable and mounting)
Connector	TNC (male)
Cable	10M RG-174 Cable

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AMEC GA-22 GPS Antenna

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