The Pro-96 receives some control channels, but not all types
The Radio Shack Pro-96 is a handheld scanner from the 1990s that can monitor many radio frequencies, but its ability to receive control channels — the frequencies that dispatch systems use to send commands to mobile radios — depends on what kind of control channel you are trying to hear. The Pro-96 can receive conventional control channels and some trunked system control channels, but it cannot decode the digital signaling that modern P25 Phase 2 systems use, and it will not automatically follow trunked radio traffic the way newer scanners do.
Understanding what the Pro-96 can receive matters because control channels sound like noise or brief bursts of data to a listener — they are not voice traffic. If you are trying to monitor a specific dispatch system, you need to know whether the Pro-96 will actually let you hear the conversations you want, or whether you will only pick up the control channel itself.
Key Takeaways
- The Pro-96 receives conventional control channels and can monitor some older trunked system control channels, but will not automatically track trunked traffic across multiple frequencies.
- The scanner cannot decode P25 Phase 2 digital control channels, which many modern dispatch systems use.
- Hearing a control channel does not mean you will hear the voice traffic — you need the actual talk group or channel frequency to listen to conversations.
- For trunked systems, you will need to manually program the talk group frequencies or use a scanner with trunking capability to follow the traffic.
Conventional control channels and the Pro-96
A conventional control channel is a single frequency that a dispatch center uses to send commands to mobile radios before they switch to a talk frequency. The Pro-96 can receive these without any problem. When you tune to a conventional control channel, you will hear data bursts, tones, and signaling — not voice. The actual conversation happens on a separate frequency after the control channel sends the instruction.
If you want to hear the voice traffic on a conventional system, you need to program the talk frequencies themselves, not just the control channel. The Pro-96 handles this straightforwardly: you enter the frequency, and when someone transmits on that frequency, you hear them. Control channels are useful mainly if you are documenting system activity or trying to understand how a dispatch system is organized, but they are not where the conversations are.
Trunked systems and the Pro-96's limitations
A trunked radio system uses a small pool of frequencies and a control channel to route many different talk groups across those frequencies dynamically. When a dispatcher sends a message, the control channel tells the radios which frequency to use. Newer scanners with trunking capability can follow this switching automatically. The Pro-96 cannot.
The Pro-96 can receive the control channel itself on older trunked systems, but it will not follow the talk groups across frequencies. To monitor a trunked system with the Pro-96, you have two options: program the individual talk group frequencies manually if you know them, or accept that you will only hear the control channel bursts. Many users find the control channel bursts too fragmented to be useful, which is why the Pro-96 is rarely the right choice for monitoring modern trunked dispatch systems.
P25 Phase 2 digital systems and incompatibility
Many police, fire, and emergency services dispatch systems have moved to P25 Phase 2, a digital standard that the Pro-96 does not support. The control channels on P25 Phase 2 systems use digital signaling that the Pro-96 cannot decode. If you tune to a P25 Phase 2 control channel on the Pro-96, you will hear nothing — no bursts, no tones, just silence or noise.
This is a hard limitation of the hardware. The Pro-96 was designed in the 1990s, before P25 Phase 2 became widespread. If the dispatch system you want to monitor uses P25 Phase 2, the Pro-96 will not receive it at all, whether you are trying to hear the control channel or the voice traffic. You would need a scanner with P25 Phase 2 support, such as a Uniden HomePatrol or a newer handheld model.
How to find out what your local system uses
Before you assume the Pro-96 will work for a specific dispatch system, you need to know what kind of system it is. Radio Reference (radioreference.com) maintains a database of dispatch systems by state and county. Search for your area and look for the system type: if it says "Conventional," the Pro-96 can receive it. If it says "Trunked" or "P25 Phase 2," the Pro-96 will have limitations or will not work at all.
You can also contact your local police or fire department's non-emergency line and ask what system they use. Many agencies will tell you whether they are on a conventional or trunked system, and some will even provide frequency information. This is faster and more reliable than guessing based on what you hear on the scanner.
What you will actually hear on a control channel
If you tune the Pro-96 to a control channel, you will hear brief digital bursts, tones, or chirps — not voice. These bursts happen in fractions of a second and repeat throughout the day. Some listeners find them interesting as a sign of activity, but they do not convey information the way voice traffic does. If you are new to scanning, hearing a control channel for the first time can be confusing because it sounds like static or a data modem, not a radio conversation.
The purpose of a control channel is to manage the system, not to carry conversations. Dispatchers and mobile units use it to coordinate which frequency to switch to next. Once the control channel sends that instruction, the actual talk happens on a different frequency. This is why monitoring only the control channel is rarely useful unless you are studying how the system works.
Alternatives if the Pro-96 does not work for your system
If your local dispatch system is trunked or uses P25 Phase 2, the Pro-96 will not be the right tool. Newer handheld scanners like the Uniden SDS100 or HomePatrol series can decode P25 Phase 2 and follow trunked systems automatically. These scanners cost more than a used Pro-96, but they will actually let you hear the traffic instead of just the control channel bursts.
If you already own a Pro-96 and want to use it, you can still monitor conventional systems or program the individual talk group frequencies on a trunked system if you can find them. Radio Reference often lists these frequencies for public safety systems. This approach requires more manual work, but it can work if your system is conventional or if you are willing to program frequencies manually.
Frequently Asked Questions
Can the Pro-96 hear police or fire dispatch at all?
It depends on whether your local system is conventional or trunked, and whether it uses P25 Phase 2. If it is conventional, yes. If it is trunked or P25 Phase 2, the Pro-96 will not follow the traffic automatically. You can program individual frequencies if you know them, but you will miss calls that switch to frequencies you have not programmed.
What is the difference between a control channel and a talk frequency?
A control channel sends instructions; a talk frequency carries conversations. The control channel tells radios which talk frequency to use next. You hear data bursts on the control channel, but you hear voice on the talk frequency. To listen to actual dispatch traffic, you need the talk frequency, not the control channel.
If I hear a control channel on my Pro-96, does that mean I can hear the conversations?
Not necessarily. Hearing the control channel means the system is active in your area, but the conversations happen on separate frequencies. On a trunked system, those frequencies change constantly, and the Pro-96 cannot follow them. On a conventional system, you would need to program the talk frequencies separately.
Can I upgrade the Pro-96 to receive P25 Phase 2?
No. The Pro-96 hardware does not support P25 Phase 2 decoding, and there is no firmware update or modification that will add it. If you need P25 Phase 2 support, you will need a different scanner.
Where can I find the control channel frequency for my area?
Radio Reference (radioreference.com) lists control channel frequencies for most public safety systems by state and county. Search your area, and if the system is listed, the control channel frequency will be in the database. You can also contact your local police or fire department's non-emergency line and ask.