The official software is called Motorola Professional Radio CPS (Customer Programming Software) , specifically version R06.12.05 or later (but not the latest version meant for the CM300d or other digital radios). The exact build that supports the CM340 is often labeled as "GM/CM/PM Series CPS."
Here is where most users fail. The CPS was designed for Windows 2000, XP, and Vista. Modern Windows 10/11 64-bit requires tweaks.
The Motorola CM340 is a rugged, no-frills analog mobile radio, beloved in its time by construction crews, taxi fleets, and event staff. It does one thing well: push reliable, clear 25-watt or 45-watt RF power across VHF or UHF bands. But to make it sing—to assign frequencies, squelch codes, and channel scan lists—you need to cross the first and most frustrating hurdle: the software. motorola cm340 programming software work
The CM340 does not use the modern, user-friendly CPS (Customer Programming Software) like the current MOTOTRBO series. Instead, it belongs to the legacy Professional Series Commercial line. This means the required software is Motorola Commercial Series CPS (Catalog # RVN4191) , often referred to colloquially as "Professional Series CPS" or simply "the old red software."
If you buy a used CM340 and it is password-locked, the software cannot read it. You must physically short two test points on the circuit board to clear the password. This is an advanced hardware hack requiring soldering. The official software is called Motorola Professional Radio
If you use a generic adapter, the CPS will give a “No response from radio” error. To fix this:
If you have 50 CM340s, do not program them one by one. If you use a generic adapter, the CPS
The software alone is useless without a physical connection. The CM340 uses a proprietary side connector (not USB or standard Ethernet). To bridge the radio to your PC, you need:
If you want, I can:
The official software is called Motorola Professional Radio CPS (Customer Programming Software) , specifically version R06.12.05 or later (but not the latest version meant for the CM300d or other digital radios). The exact build that supports the CM340 is often labeled as "GM/CM/PM Series CPS."
Here is where most users fail. The CPS was designed for Windows 2000, XP, and Vista. Modern Windows 10/11 64-bit requires tweaks.
The Motorola CM340 is a rugged, no-frills analog mobile radio, beloved in its time by construction crews, taxi fleets, and event staff. It does one thing well: push reliable, clear 25-watt or 45-watt RF power across VHF or UHF bands. But to make it sing—to assign frequencies, squelch codes, and channel scan lists—you need to cross the first and most frustrating hurdle: the software.
The CM340 does not use the modern, user-friendly CPS (Customer Programming Software) like the current MOTOTRBO series. Instead, it belongs to the legacy Professional Series Commercial line. This means the required software is Motorola Commercial Series CPS (Catalog # RVN4191) , often referred to colloquially as "Professional Series CPS" or simply "the old red software."
If you buy a used CM340 and it is password-locked, the software cannot read it. You must physically short two test points on the circuit board to clear the password. This is an advanced hardware hack requiring soldering.
If you use a generic adapter, the CPS will give a “No response from radio” error. To fix this:
If you have 50 CM340s, do not program them one by one.
The software alone is useless without a physical connection. The CM340 uses a proprietary side connector (not USB or standard Ethernet). To bridge the radio to your PC, you need:
If you want, I can:
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I needed to install USB driver on top from arduino website for it to work.