Is there a Cellular Technician Group?

Other than what you you see in the alt.cellular.* hierarchy, there's not a lot that's technician specific. There is of course, alt.cellular.verizon

However, whatever you do, DO NOT tell them you've been snooping around in the newgroups. There were some Verizon Wireless technicians in the alt.cellular.verizon newwgroup posting under aliases about a year ago; Verizon worked hard to find out their identities and when they did, those techs were promptly fired. VZW *does not* take kindly to any of their staff members representing the company outside of established work channels, even if the results are beneficial, and are fiercly suspicious of usenet.

Best of luck.

There are a lot:

alt.cellular alt.cellular-phone-tech alt.cellular.alltel alt.cellular.attws alt.cellular.bluetooth alt.cellular.cdma alt.cellular.cingular alt.cellular.clearnet alt.cellular.data alt.cellular.ericsson alt.cellular.fido alt.cellular.gsm alt.cellular.gsm.carriers.voicestream alt.cellular.motorola alt.cellular.nextel alt.cellular.nokia alt.cellular.nokia.graphics alt.cellular.nokia.operatorlogos alt.cellular.nokia.ringtones alt.cellular.rogersatt alt.cellular.siemens alt.cellular.sprintpcs alt.cellular.tech alt.cellular.umts alt.cellular.verizon

but only, 2 and, or 3 end in tech (don't know may that be technology).

"The Cellular Radio Handbook"