Transmitters can be tracked at once

Discover GPS

Real-Time Precision for High-Speed Raptors.

Why Marshall Radio

Built For The Realities Of The Field

30 Years of Proven Precision Trusted by global experts, our telemetry is engineered for the most demanding environments and absolute recovery confidence.

Transmitter

Pocket Link

AeroVision App

Longest Direct Connect GPS range

Not dependent on nearby mobile towers, so it can be used anywhere in the world without fear of “dead zones”. No SIM card to maintain therefore no waterproofing issues or further costs from text requests, etc. required to operate it. Simple. Reliable.

Transmitters can be tracked at once

5

Your bird in real-time

AeroVision to track and review flight

Flights and Statistics

01

View your flights and statistics live on the AeroVision App

Control transmitter modes

02

Press hold and modify the operation modes. Put it to sleep to save battery or increase GPS performance for the ultimate in recorded flights in HD or Eco.

3D Flight Replay

03

Review your flights from the falcon’s perspective, in relation to 3D terrain * Premium Only.

Metrics

04

Fully customizable to see every detail of your bird in flight.

Flight Log

05

Review your recorded flight and share it with friends or on AeroVision Network

Your bird in real-time

AeroVision to track and review flight

Flights and Statistics

01

View your flights and statistics live on the AeroVision App

Go To The Next Level With

Operating Modes

Turbo GPS can run for up to a week on rechargeable battery by customizing modes within AeroVision

HD

Precision GPS locations multiple times per second.

ECO

Extend battery life with once a second GPS update.

EXT

Customizable update rate for maximum battery life.

Reserve

Designed to save battery after a given threshold with slowed update rate.

Turbo

Automatic long-range recovery mode.

Zzz

Customizable sleep duration for when your bird is with you

AeroVision Features

Online Satellite Maps

See your bird's live position on an interactive map at all times.

Live Metrics

See all the live statistics in flight

Flight Log

Replay your most epic flights

Broadcast

Share video and GPS tracks - live from the field (option to keep location private)

AV Network

Post photos and videos with other AV Network users

Testimonials

What people say about Marshall GPS!

Testimonials

What people say about Marshall GPS!

I can make better decisions flying my birds. Even if I can’t see my bird I can glance at my phone and know where to look. How high the bird is, whether he’s sitting or if he’s flying. It gives all this crucial information that just makes life easier.

When I first was introduced to Aerovision it was back in February (2015) and what I thought about it was this is going to be a game changer because I go out and fly for abatement during the summer for blueberries and wine grapes… when I got out in the field I was able to see how far my bird was, how much area the bird was covering and also be able to show it to customers… it was surprising to see how much coverage the bird had done. …This has made my job so much easier.

You know why we love Marshall telemetry? Because this was the last photo taken of this anatum Peregrine before she decided to take a ride among the thermals. She flew about 100 miles north, decided to stay out two nights in a row and then eventually was recovered not too far from her flying field. Thankfully she had not just GPS on her but also a Marshall UHF RT transmitter, helping recover her days later. We are VERY happy she is home!

got your new GPS System

What's inside the box.

tag your bird

GPS Pro Transmitter

in your Pocket

Pocketlink Data Receiver

charge your batteries

3-port charger & battery

Tap on/off PocketLink

Magnetic Wand

Plug it in

Charging Cables

power up with

Rechargeable Batteries

Suitable For

Longwings

Eagles, Peregrines, Gyrs, Large Hybrids

Shortwings

Suitable for: Goshawks, Harris's, Red-tails

Parrots

Medium and Large Parrots

Marshall GPS · Turbo RF + GPS Telemetry

Range in the real world

Every GPS transmitter sends two signals: a live GPS track to the PocketLink, and a traditional UHF RF beep to your Field Marshall receiver. How far each reaches comes down to terrain — and your bird's altitude.

You + Field MarshallYou + PocketLinkBird

Open terrain high

With nothing between you and the bird, UHF travels essentially line-of-sight. This is where the quoted maximums are achieved — up to 200 miles of beeping RF and 100 miles of Turbo GPS data.

Open terrain low

As the bird drops toward the ground, both links shorten: the GPS data path weakens first as the horizon closes in, while the RF beep keeps giving you a bearing.

Forested / cover

Foliage and wet canopy absorb UHF energy, so expect ranges toward the lower end of the window. The traditional beep stays readable long after the data link drops — that's why both are on board.

Hilly / ridge

UHF is line-of-sight: a ridge between you and the bird can block the signal entirely. Move to high ground, or wait — the moment your bird climbs above the terrain, the beep returns first.

Turbo RF tracking

Active

200mi**miof 5–200 mi**

Field Marshall UHF Direction Finding Receiver

Live GPS data

Active

100mi*miof 2–100 mi*

Position + altitude in the AeroVision app

* Distances quoted using the optional High Gain Omni antenna; varies with terrain, the bird's height above ground, and obstacles.

** When tracking the traditional "beeping" telemetry signal with the Field Marshall UHF Direction Finding Receiver.

Comparison

Compare Systems

PocketLink Channel Capacity

Private Network

Race Mode Available

PING (Find my Transmitter)

Dedicated Turbo Channel

Desert Cases

Available 10 Battery Off Grid Charger

Transmitter Construction

UHF Beeping

Smart Battery Management

Direct Battery Monitoring

Turbo Without Slow Down

Idle (auto Standby)

User Selectable Modes

Swappable Rechargeable Batteries

Tail/Leg/Back/Neck Mounting

Turbo Mode

Runtime

AeroVision 7 (Latest App Version)

Firmware and Software Updates

Offline Maps

Country Maps / 3D / Carplay / Apple Watch

5

—

Mini (grey)

N/A

Aluminum

Always

—

2-3 Days

iOS / Android

Premium

Buy Now

10

Mini (black)

Optional

Titanium

User Selectable

4-5 Days

iOS / Android

Premium

Buy Now

20

Full Size (black)

Standard

Titanium

User Selectable

4-5 Days

iOS / Android

Premium

Buy Now

Compare Systems

GPS

GPS Pro 10

GPS Pro 20

PocketLink Channel Capacity

5

10

20

Private Network

—

Race Mode Available

—

PING (Find my Transmitter)

—

Dedicated Turbo Channel

—

Desert Cases

Mini (grey)

Mini (black)

Full Size (black)

Available 10 Battery Off Grid Charger

N/A

Optional

Standard

Transmitter Construction

Aluminum

Titanium

UHF Beeping

Always

User Selectable

Smart Battery Management

—

Direct Battery Monitoring

—

Turbo Without Slow Down

—

Idle (auto Standby)

—

User Selectable Modes

Swappable Rechargeable Batteries

Tail/Leg/Back/Neck Mounting

Turbo Mode

Runtime

2-3 Days

4-5 Days

AeroVision 7 (Latest App Version)

iOS / Android

Firmware and Software Updates

Offline Maps

Country Maps / 3D / Carplay / Apple Watch

Premium

Buy Now

FAQs

Search

What is the Marshall Turbo GPS System?

It is a tracking and recovery system designed for falconry. It uses a small GPS transmitter on the bird, a Pocketlink receiver, and the AeroVision app on your smartphone or tablet to show you the bird's exact location, flight path, and live statistics like speed and altitude.

Does the system require cell service to work?

No. The system uses a "Direct Connect" radio-frequency (RF) signal between the transmitter and the Pocketlink receiver. Because it doesn't rely on cell towers, you can use it anywhere in the world without worrying about dead zones. You can also download maps for offline use.

Are there any monthly fees or SIM cards required?

No. Since the system communicates via direct RF connection rather than a cellular network, there are no SIM cards to maintain and no monthly cellular data fees required to operate the standard tracking features.

How long does the transmitter's battery last?

The Turbo-GPS transmitter features swappable, rechargeable batteries. On default settings, it lasts 2-3 days, but you can configure the modes in the app to extend battery life up to 7 days.

How long does the Pocketlink receiver battery last?

The Pocketlink has an internal rechargeable lithium battery that provides 30+ hours of runtime between charges.

What is the typical tracking range?

Range depends on the terrain, elevation, and obstacles. On average, the GPS data tracking range is 2 to 100 miles. If the bird is on the ground or out of GPS range, you can track its traditional RF "beeping" signal from 5 to 200 miles (using an optional UHF tracking receiver).

Can I track multiple birds at the same time?

Yes. A single Pocketlink receiver can simultaneously track up to 5 Turbo-GPS transmitters, making it perfect for users flying multiple birds.

How do I mount the transmitter to my bird?

The transmitter has a user-configurable design. You can easily swap the mounting method in the field to attach it to your bird's tail, back, leg, or neck.

What smart devices are compatible with the AeroVision app?

For Apple users, it requires an iPhone 11 or newer, or a cellular-enabled iPad running iOS 17 or later. For Android, it requires higher-end models like the Samsung S21/A52 or Google Pixel 6 running Android OS 11–14. (Note: Tablets must be "cellular-enabled" to have the required internal GPS hardware, even though you don't need an active data plan).

Does the system come with a warranty?

Yes. Marshall Radio Telemetry provides a 3-year warranty on mechanical and moving parts, and a 3-year warranty on all electronics from the date of purchase.