Houston ISD Trunk System                                3/20/10
                           by Myles Barkman KG5AI
                       http://freqzone.home.comcast.net
                            kg5ai*at*comcast.net

I've compiled this information from various sources as well as from my own personal observations.
If you have any additions or corrections to this list, please email me to keep this list accurate.

EDACS 9600 baud System (Wideband) WPTN982 has I-Call capability, rebanded 3/19/10

Williams Tower site 01 (Post Oak Rd.):
851.1875c(1)   851.6875c(2)    852.6875c(3)   852.1875(4)
853.1625(5)    853.4375(6)     853.700(7)

Downtown Houston site 02 (600 Travis-JP Morgan Chase Tower):
851.2875c?(1)  851.6625c(2)    851.9125(3)    852.1625c(4)

Missouri City site 03 (McHard Rd.):
852.4125c(1)   851.2625c(2)    853.1875c?(3)  853.4125(4)

  AFS /DEC  Use
02-021/273 *HISD PD Ch.1 Dispatch (heard on downtown site) moved to STAR-Net 18672 Aug.2007
02-022/274  HISD PD Ch.2 Secondary
02-023/275 xHISD PD Ch.3 Campus Security link to 452.050 MHz (now using 02-067)
02-024/276  HISD PD Ch.4 Talk-around
02-025/277  HISD PD Ch.5 (not heard)
02-026/278  HISD PD TAC 1
02-027/279  HISD PD TAC 2

02-030/280 xHISD PD link to Houston PD Citywide Ch.A5 (460.425 MHz)-not always activated
02-031/281  (not heard)
02-036/286 *HISD PD TAC-3? patch to TxWARN TG 18672
02-037/287 *HISD Alarm Maint.? 6xx units checked in to "Dispatch","Base" (Campus Security talk to HISD PD dispatcher?)

02-041/289 *Transportation Services-Central Bus Motor Pool (NE) Wallisville/McCarty 95xx units
02-042/290 *Transportation Services-Butler Bus Motor Pool (SW) US90/Hillcroft
02-043/291 *Transportation Services-Northwest Bus Motor Pool (NW) US290/610
02-044/292 *Transportation Services-Barnett Bus Motor Pool (SE) Broad/610
02-045/293 *Transportation Services-Student Safety
02-046/294 *Transportation Services-Bus Maintenance (Shop)
02-047/295 *Transportation Services-Event 2

02-050/296 *Transportation Services-Event 3 Central
02-051/297 *Transportation Services-Event 1
02-052/298 *Transportation Services-Event 4 Northwest
02-053/299 *Transportation Services-Event 5

02-061/305  Maintenance Area 1 (Central/Northeast)
02-062/306  Maintenance Area 2 (Nothwest/North Central)
02-063/307 *Maintenance Area 3 (West/Southwest)
02-064/308 *Maintenance Area 4 (South central/east)
02-065/309  Maintenance Area 5 (South/Southeast)
02-066/310  Maintenance Area 6 (North)
02-067/311 *HISD Campus Security (6xx units-base is 600) (heard on downtown site)(RR calls this Telephone Repair)

02-070/312  Operations Services-Grounds
02-071/313  Operations Services-Chemicals
02-072/314  Food Services-Repair/Maintenance
02-073/315  Truck Service Center
02-075/317 

02-083/323  spanish
02-084/324  fleet services?

02-101/337  Information Technology - Radio Communications
02-102/338 *Information Technology - data networks "623,600" "route" "phones down" (heard on downtown site)
02-104/340  ?
02-105/341  ?

02-126/358  "water not working in bathroom"

02-141/369  electrical? alarm installation?

03-003/387  PD Investigators?
03-006/390  crossing guards supervisors

04-023/531  ??? bogus?

04-043/547  ??? bogus?

04-077/575  ??? bogus?

12-081/1601 Public Safety Area Wide 1
12-082/1602 Public Safety Area Wide 2
12-083/1603 Public Safety Area Wide 3
12-084/1604 Public Safety Area Wide 4
12-085/1605 Montgomery County Hospital District EMS Med TAC 5 (during Hurricane Rita)-linked to Mont Co system
12-086/1606 Montgomery County Hospital District EMS Med TAC 6-linked to Mont Co system

12-091/1609xPHI "Texas Ops 1" linked to 159.900 MHz, patched to 13-031/1689
12-092/1610 PHI "Phoenix EOC"
12-096/1614x

13-031/1689xPHI Patch

15-034/1948 ???

15-096/1998 PHI Patch with 12-091

Also check Eric Carlson's HISD List