Iridium Mast Mount U-Bolt Antenna AT1621-73
Iridium Antenna

Iridium Mast Mount U-Bolt Antenna AT1621-73

  • Vendor:AEROAntenna Technology
  • Category: Antennas, Iridium Accessories, Latest Products
Availability: In Stock
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Iridium Mast Mount U-Bolt Antenna AT1621-73

The Iridium Mast Mount U-Bolt Antenna AT1621-73 is a permanent in-building or marine installation that's designed for excellent reception. This hermetically sealed antenna can withstand harsh environments, providing you with great coverage regardless of where your home base might be!

The Iridium fixed mast antenna is designed to be used with the Iridium 9575, 9555, 9505A and GO! satellite hotspot device for exceptional reception performance in difficult environments like permanent indoor or marine installations. This hermetically sealed unit withstands harsh weather without servicing while delivering high quality signals day after day on land as well at sea; free air mode means there's no need for an additional ground plane too so you'll never lose your connection even if it rains heavily!

The AT1621-73 is a pole mount antenna that allows you to set your Iridium Satellite phone up for less obstructed reception. Whether using a tall antenna mast outside of your building or on your yacht, the AT1621-73 is quick and easy to use – no more time wasted with complicated mounting procedures. The adjustable U-bolts mounting  allows compatibility with various mast sizes.

Easy to install and use, the U-bolt anchor will secure this device onto any type of pole.

Organize your Iridium Satellite configuration with this sleek and sturdy mast mount. Say goodbye to clunky oversized antenna equipment. The AT1621-73 features a U-bolt antenna setup which can attach to any standard size pole or obstacle up to 1.5" in diameter with its 2 end brackets. This clever design includes an integrated passive radiator that enables the device to be powered directly from your satellite phone with continuous operation.

Iridium Satellite Phone Service Plans - Apollo Satellite

With AeroAntenna there is no longer a need to hunt for a company that provides equipment that performs reliably. Expect them to keep coming out with new antennas that add to an already innovative line of products. Iridium Mast Mount U-Bolt Antenna AT1621-73 from AERO Iridium actually outperforms its competitors when used with proper equipment. By utilizing AERO Antenna antennas, you can rest assured that your communication system is up to the task of keeping you linked with to the limitless coverage of your Iridium satellite service.

Manufacturer AEROAntenna Technology Inc.
Standard Model # AT1621-73W-TNCF-000-00-00-NM
NSN # 5985-01-535-4527 (5985015354527)
System Type Passive
Usage Area 100% Global
Service Frequency Band Iridium L-Band (1616 – 1626.5 MHz)
Connector TNC-F (female)
Mount Type U-Bolt Assembly
Color White w/Red Stripe
Weight 311.85 g
  • Diameter: 8.3 cm (3.25 inches)
  • Height: 18.7 cm (7.4 inches)
Frequency 1616 – 1626 MHz
Polarization Right Hand Circular
Axial Ratio 3.0 dB Max at Bore Sight
Radiation Coverage
  • +.04 dBic
  • +1.4 dBic
  • -0.25 dBic

  • = 0°
  • 0° < 0 < 45°
  • 75° < 0 < 82°
Impedance 50 Ω
VSWR ≤ 2.0 : 1
Power Handling 1 Watt
Altitude 20,000'
Operating Temperature -40ºF (-40ºC) to 185ºF (85ºC)
Finish Weatherable Polymer
Compatible With
Warranty AEROAntenna 1-Year Standard

The Iridium fixated mast antenna is a high-gain, hermetically sealed device that delivers exceptional reception performance in harsh environments. Designed for free air or nautical application this well designed and engineered component will suit your needs from permanent indoor installations to marine use where ground planes cannot provide coverage. In order to achieve optimal signal strength it's important not only make sure you have an outside connection but also inside ones as well!

All varieties of Iridium satellite phones, terminals, and docking stations can use the Iridium Mast Mount U-Bolt Antenna AT1621-73 for great reception in permanent in-building or marine applications.

  • High-quality AERO Antenna
  • Used w/Iridium and Motorola Satellite Phones
  • Pole Mount Antenna
  • Stainless steel mounting hardware supplied. 
  • Designed for permanent in-building or marine applications
  • Works with Iridium and Motorola satellite phones, and various fixed site docking systems
  • Certified by Iridium.
  • TNC-F (female) connector


Iridium Mast Mount U-Bolt Antenna AT1621-73 Variation Descriptions

Standard: AT1621-73 Antenna Only
PVC Pipe: AT1621-73 Antenna + 1 Foot PVC Pipe
Stainless Bracket Kit: AT1621-73 Antenna + 1 Foot PVC Pipe + Stainless Brackets

AERO Iridium Antenna AT1621-73 Blueprint