Destroying all 50 Signal Jammers in GTA Online unlocks Avi Schwartzman as a hacker for the Diamond Casino Heist. Rockstar confirms that destroying the government jammers earns a reward and brings an expert hacker onto your crew.1
We checked the full route and the completion reward in-game. Destroying the last jammer pays a GTA$50,000 bonus and unlocks Avi for the Casino Heist. Use the screenshots below to work through all 50 locations.
Video Guide
Signal Jammer Locations
Signal Jammer #1
The first jammer is on top of a radio tower at Los Santos International Airport.
Signal Jammer #2
This jammer is on the Miriam Turner Overpass near Elysian Island and the Port of Los Santos.
Signal Jammer #3
Look above the main entrance to Maze Bank Arena in La Puerta.
Signal Jammer #4
The jammer is on top of a factory in the Cypress Flats industrial area.
Signal Jammer #5
Look on the docked Safety First ship at Terminal. The jammer sits between the two words on the side of the vessel.
Signal Jammer #6
The jammer is attached to one of the water tanks in El Burro Heights.
Signal Jammer #7
Look on the rooftop vents of a building in La Mesa, beside the Elysian Fields Freeway.
Signal Jammer #8
The jammer is attached to a billboard on Supply Street in La Mesa.
Signal Jammer #9
Look on the roof of Central Los Santos Medical Center in Strawberry.
Signal Jammer #10
The jammer is attached to the Hookah Palace sign in Pillbox Hill.
Signal Jammer #11
Look near the top of the Arcadius Business Center in Pillbox Hill.
Signal Jammer #12
The jammer is at the Vespucci Helipad on Shank Street in La Puerta.
Signal Jammer #13
Look on one of the Ferris wheels at Del Perro Pier.
Signal Jammer #14
The jammer is near the top of the Clock Tower Building on San Andreas Avenue in Del Perro.
Signal Jammer #15
Look on a rooftop vent in Del Perro.
Signal Jammer #16
The jammer is inside one of the rooftop domes at the GWC and Golfing Society.
Signal Jammer #17
Look on the operator's cab of a construction crane in West Vinewood.
Signal Jammer #18
The jammer is attached to a rooftop dome in Burton.
Signal Jammer #19
Look near the top of the Oriental Theater, on the left side of the building rather than directly above its center.
Signal Jammer #20
The jammer is near the top of a pointed tower in Hawick.
Signal Jammer #21
Look on top of the Vinewood Bowl amphitheater in Vinewood Hills, below the Vinewood Sign.
Signal Jammer #22
The jammer is on the face of the Land Act Dam, between the long rows of windows.
Signal Jammer #23
Look on the outside wall of the NOOSE headquarters in the Palomino Highlands.
Signal Jammer #24
The jammer is attached to the front sign at Bishop's Chicken in the Tataviam Truckstop.
Signal Jammer #25
Look on the taller chimney at the Palmer-Taylor Power Station, east of the Ron Alternates Wind Farm.
Signal Jammer #26
The jammer is attached to one of the stationary wind turbines at the Ron Alternates Wind Farm.
Signal Jammer #27
Look on the tower of an industrial building in the Grand Senora Desert.
Signal Jammer #28
The jammer is near the top of a communications tower by Galileo Park.
Signal Jammer #29
Look on the monument in front of the Galileo Observatory.
Signal Jammer #30
The jammer is on the roof of the Kortz Center on Kortz Drive in Pacific Bluffs.
Signal Jammer #31
Look on the Great Ocean Highway bridge in Banham Canyon.
Signal Jammer #32
The jammer is on the tower at Marlowe Vineyards on Buen Vino Road in the Tongva Hills.
Signal Jammer #33
Look on the outside wall of Hill Valley Church in Great Chaparral.
Signal Jammer #34
The jammer is near the top of a communications tower in the Grand Senora Desert.
Signal Jammer #35
Look on the side of a rooftop ventilation unit inside Bolingbroke Penitentiary. Entering the prison normally raises your wanted level, so use a helicopter or call Lester before approaching.
Signal Jammer #36
The jammer is above the front entrance to You Tool on the Senora Freeway.
Signal Jammer #37
Look above the entrance to Humane Labs and Research on Chianski Passage.
Signal Jammer #38
The jammer is on top of an industrial building in the San Chianski Mountain Range.
Signal Jammer #39
Look near the top of a radio tower in Sandy Shores.
Signal Jammer #40
The jammer is on top of the small building at the end of a pier on the Alamo Sea.
Signal Jammer #41
Look on the upper station of the Mount Chiliad Aerial Tramway.
Signal Jammer #42
The jammer is on a water tank in Grapeseed marked Los Santos Department of Water & Power.
Signal Jammer #43
Look on the chimney of a house near the Mount Gordo lighthouse.
Signal Jammer #44
The jammer is near the top of a communications tower on Mount Gordo.
Signal Jammer #45
Look on the rocket outside the Up-n-Atom at Procopio Truck Stop on the Great Ocean Highway.
Signal Jammer #46
The jammer is on the outside wall of an industrial building near Paleto Bay.
Signal Jammer #47
Look on the Cassidy Creek Bridge in Raton Canyon.
Signal Jammer #48
The jammer is near the top of a communications tower in the Chiliad Mountain State Wilderness.
Signal Jammer #49
Look on the Hookies sign beside the Great Ocean Highway in North Chumash.
Signal Jammer #50
The final jammer is on the control tower at Fort Zancudo.
Rewards
After you destroy the final jammer, Lester sends a message about Avi. Our in-game check confirmed a GTA$50,000 completion bonus, and Avi becomes available as a hacker for the Diamond Casino Heist.
When you enter your Arcade, a notification confirms that Avi Schwartzman has been unlocked.
Go to the planning board in your Arcade basement to select Avi as one of the available Casino Heist hackers. Our Big Con approach guide explains where that crew choice fits into the full setup.
That completes the Signal Jammers collectible hunt.
Frequently Asked Questions
Do you need an Arcade to destroy all 50 Signal Jammers?
No. You can destroy all 50 jammers and unlock Avi without owning an Arcade. You only need an Arcade when you want to plan the Diamond Casino Heist and hire him as your hacker.