Whistler TRX-2 Review

Police scanners can become as important as a pen and paper in a newsroom. After all, there are no federal legal laws that limit their use. The Federal Freedom of Information Act allows law enforcement agencies to withhold information, but the latter finds almost no reason to do so.

If you're a concerned citizen or a journalist who wants to hear crime-related events to unfold, you'll need a good police scanner. With this, you can use the Whistler TRX-2 since it has all the features necessary to get a good grasp on what's going on. Here are some other things you need to know:

The Basics

The TRX-2 scanner makes it easier for you to follow and monitor unencrypted channels and systems. This model has an easy-to-use Scan, Pause, Select, and Navigation controls with an alphanumeric keypad.

It comes with pre-programmed services and frequencies from the United States and Canada. The SD card that comes with the device stores this information. What this means is that it's ready-to-use and you can program them with the use of your own ZIP code.


The TRX-2 has all the features you can expect from GRE's. However, some of its features are brand new. That makes it one of the most modern and comprehensive police scanners around.

Onboard Library

This TRX model has the entire RadioReference database stored in its internal SD card. With this, you don't need to use computers to get a list of new objects to scan when you're traveling around. If you change your mind and would want to listen to other things, you can select from the extensive library without consulting the local frequency information.

Object-Oriented User Interface (OOUI)

The radio allows you to enter specific attributes like frequencies, search events, and other things as objects within Scanlists. It moves away from the old method where scanners used to organize memories into rigid banks of a pre-determined number of channels. That means you can set up your Scanlist in a lot of different ways-- a type of service, location, or incident type.

The Whistler might not be on par with other scanners in terms of capacity. It makes up for it for its efficient memory use, allowing it to minimize usage of memory space. The objects you enter can be parts of multiple Scanlists, meaning you don't need to enter it each time.

Scan Sets

This feature allows you to make connections across multiple Scanlists using attributes like the location. This saves you a lot of time and effort when it comes to turning several individual Scanlists on and off. It still gives you an option to toggle these Scanlists without affecting the others in a specific Scan Set.

Radio Traffic Recording

You can set your radio to record air traffic and get it from the internal memory card later. It's great if you tune in to a single channel but you can't stay up all the time. It has a playback option that allows you to replay the recording as many times as you wish.

Memory Card

The internal memory card has a 4GB capacity, which you can replace with a bigger one if needed. It's an important part of the radio due to the fact that it won't work unless it's inserted. You can use a full-size SD card for the TRX-2, rather than a micro-SD card.

V-Scanners II

At its most basic form, V-scanners are memory sets that encompass a radio's memory. For TRX-2, that includes your Library, Scanlists, Scannable Objects, and others. You can imagine it as having 200 scanners at any given time, but you can only use one.

Frequency Range

The TRX can handle the majority of the common scanner frequencies, from 25-1300 MHz. It comes with default modulation modes as well as step sizes for the different portions of the bands. You can change it depending on unique circumstances, such as firmware updates.

Spectrum Sweeper

The near-field detection feature of the TRX-2, the Spectrum Sweeper, is another notable feature. It works by looking for activity in the large swatches of the radio spectrum and zooming in on the frequency it finds. It's a great feature if you want to find unknown channels as long as you get close enough.


This feature helps you program certain frequencies and activate them instantly. Its main use is to spot storms, but you can use it for other things by programming in the channels that interest you. After pressing this feature's button, it turns off all your other Scanlists other than the ones you programmed in the SkyWarn Scanlist.

USB Connection

If you want to upgrade your TRX or do some advanced programming, you can connect it using a standard USB cable. You don't need any drivers to access its internal memory card as if it was its disk drive. This makes it an easy task for you to copy audio files and other items stored within easier and faster.

Extended Menu Settings

The TRX's menu settings are so extensive that they have to break it up into two categories: Regular and Expert. The latter's settings are often too advanced for most people to use it, but if you have lots of experience in scanning, you might find the fine-tuning a delight. After all, it contains settings that allow you to change the bandplan between the American and Canadian options and the like.

Whistler TRX-2 Review: The Verdict

The TRX-2 is one of the most amazing scanners around. The Whistler TRX-2 has a sensitive front-end receiver and has a lot of memory channels that allows you to store your preferred channels easily. It features clear, easy-to-read displays that show all the information necessary to know about the channel you're listening to.

As for the programming software, it's well-planned and intuitive. It won't take long for you to get used to it. When you connect it on a PC, it checks for updates on firmware and other things that can make it better.

The only thing it lacks is D-STAR and C4FM support. But other than that, it's a highly-recommended radio for everyone.

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