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Frequently Asked Questions About Clickers

Which clickers can students use?

i>clicker, i>clicker+ and i>clicker2 are supported at UC San Diego and are sufficient for student use.

i>clicker and i>clicker+ provide basic functionality to answer questions.

i>clicker2 confirms the student's response by showing it on the screen and has advanced features including numeric and alphanumeric responses. The majority of faculty at UC San Diego do not use these advanced features, but students must use an i>clicker2 if those features are desired.

Is iClicker REEF available on campus?

iClicker REEF Available on Campus (9/27/17)

The bookstore has switched to selling physical iClickers that come with a 5-year subscription to REEF. REEF is a mobile app from iClicker that allows students to respond to iClicker polls using their phone, tablet or laptop instead of a physical clicker.

To allow students to use REEF, an instructor needs to enable REEF in the iClicker software. (You will only see the REEF Polling tab in your settings if you have downloaded iClicker 7.10 or higher from our clickers.ucsd.edu website) If you decide to try REEF and would like assistance setting it up, contact us at clickers@ucsd.edu.

We ran a REEF pilot in Winter 2017 to test out how well it worked compared to a physical iClicker. Our results showed that overall it worked well and was reliable in class, as long as nothing went wrong with the wi-fi in the room.

Because of the positive pilot results, it was decided that we would leave REEF enabled on campus and give instructors the option to use it if they choose. All of the students purchasing iClickers at the bookstore are getting a physical remote along with the REEF license, so there is no obligation to switch to using REEF at this time if you do not wish to.

If you have any questions, please contact Treb Padula.

Do I need to use iClicker Cloud (formerly REEF Instructor) to allow students to use REEF in my class?

ITS currently supports the mobile REEF app through the standard iClicker software (now called iClicker Classic by the manufacturer) that is still downloadable from our clickers.ucsd.edu website. iClicker considers this a hybrid solution since we are using the software designed for the physical clickers but we have enabled the use of the mobile app by students. To use REEF in this way you just need to download iClicker 7.10 or higher from our site and ‘Enable” REEF in the REEF Polling or Mobile tab.

We currently do not support the online iClicker Cloud app since it has not been tested with the campus and may still have issues syncing scores and downloading class rosters.

How do I enable the REEF student application in the iClicker Classic course settings?

Here is a link to the iClicker support page that walks through the process of enabling REEF in the standard iClicker Classic software.


How do students create an iClicker REEF account?

Here is a link to the iClicker support page that documents how students create an iClicker REEF account.



Which computers can I use?

You can use any Mac or Windows computer which meets the requirements below.

Tablets running full Windows which have a USB port are also compatible, but because they need to be attached to the base station, mobility is limited.


System requirements:

  • Windows 7 or above operating system (32- or 64-bit)
  • 1 GHz (or faster) processor
  • 1 GB RAM (32-bit) or 2 GB RAM (64-bit)
  • One available USB 2.0+ port
  • Minimum screen resolution of 1024 x 600 pixels


System requirements:

  • Mac OSX version 10.9.5 or above
  • Intel processor
  • 2 GB RAM
  • One available USB 2.0+ port
  • Minimum screen resolution of 1024 x 600 pixels

What software should I download?

Whether or not you use TritonEd (the campus learning management system), download the latest i>clicker software supported at UC San Diego here.

How do I connect my computer to the base station?

Computer, base station and cable

Step One:

Image of Base station and Standard B connector

Connect the Standard B side of the cable to the Base Station.

Step Two:

Connect USB to USB

Next, connect the USB side of the cable to your computer's USB port.

Step Three:


The base station will turn on when your computer is turned on.

How do I set up my class for clickers ?

Download and install the i>clicker software, then launch the i>clicker application by double-clicking on the icon. 

1. The i>clicker window opens with no courses listed. Click Create.

2. A New Course window appears. Enter your Course Name, including the term (for example, Spring 16), then click Create.

Be sure to create a new class in i>clicker for each term or section.


i>clicker automatically creates a new course folder within the Classes folder in your iclicker folder.

3. You will be returned to the main i>clicker window where you will see the course just created in the list of courses.

Repeat steps 1-3 as many times as necessary to create your courses.

How do I adjust my course settings?

Click on Settings to customize i>clicker for your course.

Settings can also be accessed from the i>clicker Session Toolbar by clicking the Options button then selecting Course Settings.

If you are doing the initial setup for a course, on the General tab of the Settings window enter the number under the bar code on the back of your instructor remote into the Instructor Remote ID box.

Course Settings window, General tab, Instructor Remote ID field circled with Prevent App Nap box checked

If you are a Mac user, be sure the Prevent App Nap box at the bottom of the General tab is checked.

How do I set a frequency code?

In the Settings area, under the General tab, choose the radio buttons to select your frequency code.

All base stations installed in large lecture halls across campus have a frequency code combination on the front of the base station for you to use. This prevents "phantom" responses from students in other lecture halls that may be also be using i>clickers.

If a nearby classroom is using the same frequency, at the session start up an advisory will appear on your computer to use a different frequency.

IMPORTANT! In order for faculty or students to change frequency on their remotes, the desired course must be highlighted in the main window or the session must be started.

Changing the i>clicker2 remote frequency:

  1. Press and hold the i>clicker2 power button until the two digit frequency on the LCD begins flashing.
  2. Press the two-letter code that is designated in the session settings.
  3. A checkmark on the remote screen indicates a successful reset of the remote frequency.

Changing the i>clicker remote frequency:

  1. Press and hold the i>clicker power button until the blue Power light begins flashing.
  2. Press the two-letter code that is designated in the session Settings.
  3. A momentary green "Vote Status" light indicates a successful reset of the remote frequency.

Changing the i>clicker+ remote frequency:

  1. Press and hold the i>clicker+ power button on the remote until the Power light begins flashing.
  2. Press the two-letter code that is designated in Settings.
  3. All lettered button lights momentarily turning green indicates a successful reset of the remote frequency.

What frequency should I use in my classroom?

The following is a chart for all frequencies set in general assignment classrooms on campus that have an i>clicker base station installed. If you're in a classroom without a built-in base station, use any frequency not listed below.

Each built-in base station is labeled with the assigned frequency code. To avoid receiving and/or generating phantom responses when systems are in use in nearby lecture halls, we strongly advise using the frequency code assigned to each room. Frequencies for each base station location can be found in the chart below.

If a nearby classroom is using the same frequency, an advisory will appear on your computer to use a different frequency.

Location Code   Location Code





































CICC 101*




CSB 001


WLH 2001


CSB 002


WLH 2004


GH 242


WLH 2005


HSS 1330


YORK 2622




YORK 2722






*Bring your own base station

How do I run a poll?

Open i>clicker and select the course in which you want to run the poll. Click the Start New Session button.

Use your instructor remote to Start/Stop Polling or click on the green arrow In the Session Toolbar using your mouse or touchpad.

Use your instructor remote to stop polling, display results, and select the correct answer (if applicable). You can use your mouse to stop polling and display results as well.

NOTE: Using the Prev and Next or C and D buttons on your instructor remote will advance and reverse the slides in PowerPoint, Keynote, PDF, or Word documents as long as those slides are the primary focus of your computer. If you use your mouse or touchpad for i>clicker functions, you may need to click back on your slide program to be able to advance them with the instructor remote.

How do I use the Gradebook?

In the main i>clicker window, click on Open Gradebook.

The Gradebook will open showing a list of students in the left-most column and the voting sessions across the top.

Student names will be associated with the results after syncing your roster with TritonEd or downloading your roster from Blink.

Students with registered clickers will appear in blue and students without registered clickers will appear in red. The recorded votes of students who have not yet registered are stored under their i>clicker remote ID.

Each Session Column is labeled by default with the polling session date. If you conduct two polling sessions on the same day, those two sessions will be shown separately on the main screen. 

Where can I get more information?

Download the i>clicker User Guide (PDF).