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Terk SIRMarine

SIRIUS Satellite Radio marine antenna

Item #: 209SIRMAR

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5 Reviews

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Before you set off on your next boat trip, make sure you can hear your favorite SIRIUS Satellite Radio stations onboard. Terk designed the SIRMarine satellite radio antenna to provide crystal-clear SIRIUS reception on the water.

This rugged marine-rated antenna can withstand splashes of salt water and high vibration from wind. You can mount it directly to your boat's deck or use the supplied adapter to attach it to a bracket or mast.

Note: A subscription to SIRIUS is also required. Satellite radio service is available only within the lower 48 states — not available in Hawaii or U.S. territories. Limited service is available in Alaska.

Product Highlights:

  • marine antenna for SIRIUS Satellite Radio
  • threaded flange adapter and 24.5' antenna coax cable included
  • mounts to standard marine bracket (1"-14 thread) or directly to your boat's deck
  • dimensions: 3-3/4"H x 1-1/2" (maximum diameter)
  • warranty: 1 year
  • Our 60-day money-back guarantee

Terk SIRMarine Reviews

Average Customer Review:

5 Reviews

Great Antenna For My Boat

Written by: Doug from Alabama on May 31, 2015

Crutchfield Customer Review (What's this?)

I added a SiriusXM tuner to my marine head unit on my boat. I purchased the Terk SIRMarine antenna and mounted it to the deck just above the helm. Installation was easy and took minutes to complete. Instantly I was listening to SiriusAM radio and enjoying great music anywhere on the lake. Great purchase. I highly recommend this to anyone needing a satellite radio antenna for a marine installation.

Pros: Easy to install, 25' of antenna wire, weather proof, works very well.

Cons: None

Terk SIRMarine

Written by: SeaDawg from Washington on April 21, 2015

Crutchfield Customer Review (What's this?)

Put this on my Regal, and it was super easy to install. Flush mounted it on my Cuddy, hooked up to a SC-C1 and the sound is incredible. Even underneath the tent garage, the reception is incredible!

Pros: Easy to install, long wire, great instructions.

Cons: None.

Trek SirMarine

Written by: Trek SirMarine from Carter Lake IA on August 14, 2013

Crutchfield Customer Review (What's this?)

Easy to install and Crutchfield was great at answering my questions!!!

Pros: Crutchfield

Cons: It was 95 and humid when I installed it!

Terk SIRMarine

Written by: Commercial Fisherman from SE Alaska on January 31, 2011

Crutchfield Customer Review (What's this?)

Antenna works good. Loose signal occasionally, sometimes due to bad weather and
wave action sometimes just because. Outtages are of short duration. Can not say if
another antenna would be better or if I'm just far enough north to have signal problems.
Works way better than a car top type antenna I had before. The only problem I had with
the antenna is this is my second one I've had to buy. Replaced this antenna a year ago
and now having to get a new one . Hope this one works longer.



SIRIUS'ly connected

Written by: Ak.Yeti from Ketchikan, Alaska on October 22, 2008

I set this unit up with my SIRIUS radio on a boat and ran inside waters between Tacoma, Washington and South East Alaska without losing the signal at any time. This is an area were expensive satellite phone service often fails. Factor in the mounting options and you have an excellent package.



Hands-on research

What's in the box?

Download owner's manual

  • SIRIUS satellite marine antenna with attached 5.75" cable using a TNC connector on other end
  • Threaded flange adapter
  • 24.5" Antenna coax cable with a TNC connector on one end and a single SMB connector on other end
  • Slotted extension adapter
  • Lock washer
  • Hex nut
  • Owner's Manual

Product Research



Overview: The TERK SIRMarine (SIRIUS Satellite Radio Marine Antenna) is a high-performance antenna designed specifically for Sirius Satellite Radio reception on recreational marine craft such as fishing boats, sport boats, yachts, and sailboats. This package includes a rugged, low-profile marine-rated antenna which can withstand high-vibration and salt-water environments, a plastic treaded flange adapter for bracket or mast mounting (mast or bracket not supplied), and a 24.5' length of RG174 coax cable.

Mounting: The TERK SIRMarine SIRIUS Antenna features dual mounting options.

  • Direct Mount: The marine antenna can be mounted directly to your boat's deck or any flat surface of your boat. This type of mount will require a 9/16" cut-out hole to route the antenna cable. This installation is perfect for use on small vessels.
  • Bracket or Mast Mounting: The marine antenna can be mounted to an optional bracket or mass using the supplied plastic treaded flange adapter. The flange adapter uses a standard 1"-14 marine thread. The bracket or mast is not included. This type of installation is great for large vessels and sail boats.

Note: There should be at least a 20-degree clearance from any metallic obstruction on all sides of the mounted antenna.

Connection: Then antenna features an attached 5.75" cable with a TNC connector that connects to the supplied 24.5' coax cable via its own TNC connector. On the other end of the 24.5' coax cable is a single SMB connector which plugs in your Sirius Satellite Radio receiver and marine dock.

System Requirements: In addition to this SIRIUS satellite radio antenna, you must have a SIRIUS tuner and subscription to SIRIUS Satellite Radio to receive SIRIUS Radio programming.



  • Frequency: 2320 to 2332.5 MHz
  • Gain: 4.5 to 7 dBi from 50 to 90 degree
  • Bandwidth: 12.5 MHz
  • Impedance: 50 ohms
  • Polarization: LHCP (Circular)
  • Noise Figure: 0.8 dB, maximum

Our Product Research Team

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