Terk SIRMarine

SIRIUS satellite marine antenna

  • Terk SIRMarine



Our take on the Terk SIRMarine

by Leigh Schoettinger

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.

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  • 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

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product 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

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.



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
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Terk SIRMarine Reviews

Average Customer Review:

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5 out of 5

Trek SirMarine

Written By Trek SirMarine, Carter Lake IA on Wednesday, August 14, 2013
Crutchfield Customer Review (What's this?)
Easy to install and Crutchfield was great at answering my questions!!!
It was 95 and humid when I installed it!
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4 out of 5

Terk SIRMarine

Written By Commercial Fisherman, SE Alaska on Monday, 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.
4 out of 4 people found this helpful
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5 out of 5

SIRIUS'ly connected

Written By Ak.Yeti, Ketchikan, Alaska on Wednesday, 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.
19 out of 21 people found this helpful
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1 question already asked

Is there a way to use this antenna on a Lowrance HDS-12 Touch Depthfinder/GPS/SonicHub Network? The SonicHub requires two(2) RCA Inputs from the satellite antenna. Any help would be greatly appreciated! [ Dale  Jul 30, 2014 ]
1 answer
  • We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question. [ Krissy Staff  Aug 06, 2014 ]

For a more in-depth review and enhanced detailed information on the Terk SIRMarine, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_209SIRMAR/Terk-SIRMarine.html ).