Anyone know what this is?

[Salvatorejrc]

It's on a building (office/warehouse) that was abandoned, possibly around 2006

 

[KevinC]

Looks like a 8 or 900 corner reflector.

 

[nd5y]

Looks like a 8 or 900 corner reflector.

I second that.

 

[globalphn]

800-900 Corner reflector antenna. If you need one I have one laying around

 

[budevans]

I've seen similar looking antenna's on warehouses. Usually an alarm system or data link.

 

[Salvatorejrc]

I've seen similar looking antenna's on warehouses. Usually an alarm system or data link.

Meaning that it connects to PD headquarters like that when set off?

 

[nd5y]

If it's for an alarm system the frequency is probably licensed to an alarm company. The alarm company would notify local law enforcement or fire department.
More likely it's for a control station dispatch radio.

 

[ecps92]

Aimed toward the nearest Cell Site

Meaning that it connects to PD headquarters like that when set off?

 

[KK4JUG]

Meaning that it connects to PD headquarters like that when set off?

Very few alarms are connected to PDs anymore. Maintenance and monitoring would be overwhelming.

 

[prcguy]

I agree its an 800-900MHz corner reflector but not for cell service, they never use an expensive antenna like that for alarm systems and always go cheap. The company probably used a local repeater or had a point to point radio radio system at one time.