LOCAL RADIO-SYSTEM RESEARCH WORKSHEET
Yenra | Guide: https://yenra.com/police-scanner-radio-frequencies/
Worksheet edition: October 12, 2026

Purpose: identify one receiving task and compare its requirements with an exact
scanner model. This is a research record, not a frequency list or legal clearance.
Copy this blank template for each service. Keep source facts separate from your
observations. Write "unknown" where evidence is missing; resolve essential unknowns
before buying equipment. Do not record personal details overheard on air.

1. DEFINE THE TASK
State / county or independent city:
Agency and service (for example, fire dispatch):
Intended listening location (a general description is enough):
Research date:

2. RECORD THE SOURCES
Official agency or system-owner URL:
Source publication/update date:
Directory entry URL and update date:
Date you checked each source:
FCC license call sign / record, if relevant:
Uncertainties or conflicting information:

3. RECORD THE SYSTEM REQUIREMENTS
System name:
Conventional or trunked:
Voice format and phase, if applicable:
Frequency or site frequencies (MHz; copy all published decimal places):
Site name and control-channel information (for trunked operation):
Talkgroup ID, description, and decimal/hex notation as listed:
Access tone/code, if documented:
Encryption status of this channel/talkgroup and evidence date:
Simulcast noted? Evidence:
Expected activity / best time for a reception check:

4. MATCH THE RECEIVER
Exact make/model:
Firmware and database versions, if applicable:
Manual URL and relevant section:
Frequency band / voice-mode match:
Trunk-tracking support for the exact system:
Required software, computer, cable or optional upgrade:
Unresolved compatibility questions:

5. MAKE ONE CONTROLLED CHECK
Date, time and general location:
Saved configuration name:
Antenna / relevant settings:
Display indication (site, channel or talkgroup):
Audio observation:
One setting or placement change:
Result of that change:
Next check and reason:

INTERPRET THE RESULT
- A license record describes authorization; it does not by itself establish
  current dispatch use, talkgroup identity or receivability.
- A quiet interval is an observation, not proof that a channel is obsolete.
- Digital voice decoding and trunk tracking are separate requirements.
- Consumer scanners cannot decode encrypted voice.
- Check applicable rules before mobile use, recording or redistribution.

LOOKUP STARTING POINTS
RadioReference: https://www.radioreference.com/db/
FCC ULS: https://wireless2.fcc.gov/UlsApp/UlsSearch/searchLicense.jsp
Uniden manuals:
https://support.uniden.com/support/solutions/articles/153000219059-product-owner-s-manuals

Revisit this record when the agency changes systems or reliable reception changes.