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Humminbird

XI 9 1521 - Dual Spectrum CHIRP ICE Transducer

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Humminbird Xi

9 1521 Dual Spectrum CHIRP

15/21 Degree

Beam angles for ice fishing

130-250 Khz

Operating range

Designed As

Ice transducer

No Temperature

Sensor included

$109.99
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SKU: 1097191

Overview

Built for ice anglers who want sonar coverage tailored to hardwater fishing, this transducer provides Dual Spectrum CHIRP operation with 15/21 degree coverage and a 130-250 kHz range. It is intended for use in ice fishing setups where a dedicated transducer is needed for compatible Humminbird electronics. The design does not include temperature sensing, so it is focused on sonar performance rather than added environmental data.

Why Hunters Choose the Humminbird

Dual Spectrum

CHIRP support for versatile ice

15/21 Degree

Beam options for different viewing

130-250 Khz

Frequency range specified in product

Designed As

Ice transducer for Humminbird systems

Simple, Purpose-built

No temperature sensor

Key Features

  • Humminbird XI 9 1521 Dual Spectrum CHIRP ice transducer
  • 15/21 degree beam angles for ice fishing use
  • 130-250 kHz operating range
  • Designed as an ice transducer
  • No temperature sensor included

Best Used For

  • Ice anglers using a Humminbird setup that accepts a Dual Spectrum CHIRP ice transducer
  • Users wanting a 15/21 degree ice transducer for sonar coverage options
  • Anglers needing a no-temperature transducer for straightforward ice fishing use
  • Serious ice fishermen replacing or adding a Humminbird XI 9 1521 transducer

Specifications

Beam Angle15/21 Degree
Frequency Range130-250 kHz
TechnologyDual Spectrum CHIRP
Temperature SensorNo temperature
Transducer TypeIce Transducer

Pros

  • Dual Spectrum CHIRP support for versatile ice fishing sonar use
  • 15/21 degree beam options for different viewing needs
  • 130-250 kHz frequency range specified in product data
  • Designed as an ice transducer for Humminbird systems
  • Simple, purpose-built configuration with no temperature sensor

Considerations & Trade-offs

  • Designed specifically as an ice transducer, so it is not a general-purpose option for other fishing setups.
  • The 15/21 degree beam angles may require some adjustment depending on hole size, depth, and the type of coverage you want.
  • This model does not include temperature sensing, so anglers needing that data will need a separate solution.
  • Its 130-250 kHz operating range is defined, which means it is built around that specific sonar configuration rather than broader compatibility claims.

Suggested Comparisons

  • Ice fishing transducers
  • CHIRP sonar transducers
  • Ice fishing sonar accessories

Suggested Accessories

  • Ice transducer bag
  • Transducer mounting bracket
  • Portable sonar battery
  • Transducer cable organizer

Frequently Asked Questions

What is the XI 9 1521 Dual Spectrum CHIRP ICE Transducer used for?

It is an ice transducer for Humminbird sonar use, identified as the XI 9 1521 Dual Spectrum CHIRP ICE Transducer.

What sonar frequencies does this transducer support?

The product data lists a frequency range of 130-250 kHz.

What beam angles are listed for this transducer?

The listed beam angles are 15 degrees and 21 degrees.

Does this transducer include temperature sensing?

No. The product description specifically says "No temperature."

Which brand is this transducer from?

It is a Humminbird product.