PIT tag antennas are essential components in fish tracking systems, enabling the detection of FDX-B and HDX PIT tags in hatcheries, rivers, fish ladders, and long-term monitoring stations. A well-designed antenna significantly improves read range, detection accuracy, and overall system performance. We manufacture PIT antennas in multiple sizes and configurations, including loop antennas, raceway antennas, underwater antennas, and fully customized river arrays. All antennas are engineered to deliver stable performance in high-flow water, noisy metal environments, and outdoor installations.

Types of PIT Tag Antennas

1. Raceway PIT Antennas

Designed for hatcheries and indoor facilities, raceway antennas are built for consistent near-field detection of juvenile salmon and trout.

Features:

• Highly stable read performance

• Works with 8 mm and 12 mm PIT tags

• Durable PVC waterproof structure

• Simple installation above or inside raceways

• Ideal for daily hatchery monitoring

Applications: juvenile PIT-tag detection, feeding studies, growth monitoring.

2. Flat Plate PIT Antennas

Used in controlled environments where high stability and repeatability are required.

Features:

• Excellent anti-interference behavior

• Recommended for laboratory or tank studies

• Uniform detection field

• Compatible with all DO RFID TAG PIT readers

Applications: controlled research experiments, physiology tracking.

3. HDX River Gate Antennas

Engineered for long-distance detection using HDX tags, optimized for outdoor and high-flow environments.

Features:

• Supports large detection loops

• Higher energy response for HDX tags

• Up to multi-meter read range depending on size

• Reinforced mechanical frame for river installation

Applications: salmon migration research, upstream/downstream detection, adult return tracking.

4. Large Loop PIT Antenna Arrays

For large monitoring stations or multi-channel rivers.

Features:

• Supports multiple coils

• Connects to fixed long-distance readers

• Designed to withstand river debris and high water pressure

• Custom sizes up to several meters

Applications: ecosystem modeling, migration timing, dam passage studies.

5. Custom Antenna Designs

We produce antennas according to customer requirements:

• Shape (rectangular, circular, oval, square)

• Underwater or surface mounting

• Embedded wiring for low visual impact

• High-resistance materials for ocean or estuary applications

How PIT Antennas Work

PIT antennas generate an electromagnetic field that powers the PIT tag and receives its signal. Performance depends on:

• Antenna size

• Wire inductance

• Matching board tuning

• Water conductivity

• Noise environment

• Tag size and type (FDX-B vs HDX)

FDX-B antennas provide high sensitivity for small tags (8–12 mm).
HDX antennas generate the energy required for long-range detection.

Antenna tuning is performed for:

• Optimal resonance

• Maximum SNR

• High-flow stability

• Field uniformity for accurate detection

Choosing the Right Antenna for Your Project

For Hatcheries

Recommended: Raceway antennas
Best for:

• Juvenile salmon and trout

• Daily monitoring

• High detection reliability

• Indoor stability

For River Monitoring

Recommended:

• HDX river gate antennas

• Large loop antenna arrays

Best for:

• Adult migration

• Multi-year tracking

• Harsh/wild environments

For Laboratory Studies

Recommended: Flat plate antennas
Best for:

• Repeated controlled detection

• Short-range precision

For Custom Installations

Recommended: Custom loop antennas
Best for:

• Unique river shapes

• Weirs

• Fish bypass systems

Technical Specifications

Our antennas support:

• FDX-B and HDX decoding

• Waterproof IP67–IP68 protection

• Heavy-duty frames

• Custom resonance tuning

• Low-resistance copper coils

• High-sensitivity matching circuits

• Stable operation in cold and warm water environments

• UV-resistant and corrosion-resistant materials

Detection ranges:

• Raceway antennas: 20–60 cm

• HDX large loops: 1–3+ meters

• Lab plates: 10–40 cm

Actual distance depends on tag size, environment, and reader configuration.

PIT Tag Antenna Installation Methods

Submerged Installation

• Fully underwater frame

• Requires waterproof connectors

• Ideal for fish ladder entrances

Half-submerged

• Installed around fish passage

• Common for river migration gates

Dry Installation

• Installed above water

• For raceways and tanks

• Low maintenance

Portable Antenna Frames

• Lightweight carbon or aluminum frames

• Used for temporary field studies

Complete PIT Monitoring System

We provide full system integration consisting of:

• PIT tags (FDX-B and HDX)

• PIT readers (fixed & handheld)

• PIT antennas

• Cables, tuning modules, and power supplies

• Data collection interface & software guidance

Working with one supplier ensures:

• Higher compatibility

• Reduced data loss

• Easier long-term maintenance

• Accurate long-distance detection

Why Order PIT Tag Antennas from DO RFID TAG Manufacturer

We provide high-performance PIT antenna systems trusted by hatcheries, fisheries research projects, and environmental monitoring programs worldwide.

Advantages:

• Full range: raceway, lab, river, and custom antennas

• Precision coil winding and exact tuning

• Stable detection of 8 mm and 12 mm PIT tags

• Strong HDX performance for long-range arrays

• Rugged construction for long-term outdoor use

• Reader + antenna + PIT tag complete system supply

• Experienced engineering support for installation and testing

Our antennas are used in salmon migration studies, trout monitoring programs, and river detection networks requiring multi-year reliability.

Internal Links

• /pit-tags/

• /pit-tag-8mm/

• /pit-tag-12mm/

• /fdx-b-vs-hdx/

• /pit-tag-reader/

• /pit-tag-gun/

• /how-to-implant-pit-tags/

·        PIT Tags 

·        PIT Tags for Salmon

·        PIT Tags for Trout

·        PIT Tag Injector

·        PIT Tag Sizes

·        /pit-tags/

·        /pit-tag-8mm/

·        /pit-tag-12mm/

·        /fdx-b-vs-hdx/

·        /pit-tag-reader/

·        /pit-tag-gun/

·        /how-to-implant-pit-tags/