Signal Jammers

Signal Jammers are a collectible in Grand Theft Auto Online, added as part of The Diamond Casino Heist update, released on December 12, 2019.

Description
"Did you just take a SecuroServ transmitter offline? My old friend, Avi Schwartzman, has been saying the government is blocking his radio transmissions for years... He's a useful man to know. If you can destroy the rest of the signal jammers like that one, he'll make it worth your while."

- Lester's text after destroying the first signal jammer.

There are fifty Signal Jammers scattered throughout the state of San Andreas.

The jammers can be destroyed with almost any weapon, and they can be locked on with homing missiles, such as those on vehicles or with the Homing Launcher, making their discovery and destruction much easier.

There are what appears to be two main antennae with red lights that blink, making them especially useful for spotting the jammers at night. If the player gets close enough, a two-tone beeping can be heard in time with the lights; this is an audio cue to help locate it.

Rewards
Once a jammer is destroyed, it will reward the player with $2,000 and 1,000 RP. If the player destroys all 50 of them, they will be rewarded with an additional $50,000, totalling $150,000. As a bonus reward, Avi Schwartzman will become available as support crew for The Diamond Casino Heist.

"You got 'em all! Avi is broadcasting, and the only thing stopping people listening is the quality of the content. I told him you might be in need of a hacker in the future (maybe for a casino job?) and he's happy to help in any way he can."

- Lester's text