Ritron
Product Description
Ritron LM-700DMR LoudMouth Wireless PA System | DMR VHF/UHF
Wireless PA System • DMR Tier II • VHF/UHF
Ritron LM-700DMR LoudMouth® Wireless PA System
The Ritron LM-700DMR LoudMouth® is a DMR digital-only wireless public address system that lets your portable, mobile, or base station two-way radios deliver live or prerecorded voice announcements through a loud PA horn speaker. It is built for factories, schools, warehouses, parking lots, construction sites, and temporary installations where a hard-wired PA system is impractical or too expensive.
As part of the LoudMouth wireless PA family, the LM-700DMR gives facilities a flexible way to improve communication, safety, security, and productivity using compatible VHF/UHF DMR radio infrastructure already in place. It supports targeted area paging, mass notification, multi-zone deployment, and optional visual alerting.
DMR Digital Only VHF 150-165 MHz / UHF 450-470 MHz Live + Record and Play Modes Up to 4 Stored Messages Supports Up to 2 PA Speakers Optional Strobe Light Alert
95 dB Maximum audio output at 50 ft
4 Messages Up to 4 prerecorded stored announcements
2 Speakers One receiver supports up to 2 PA horns with optional cable
110-220 VAC Power supply included with standard package
Ideal applications: schools, hospitals, factories, warehouses, office buildings, airports, marinas, parking lots, construction sites, amusement parks, golf courses, lumber yards, sporting venues, special events, and other locations that need flexible radio-based paging and alerts.
How It Works Features Specifications Applications Included & Accessories FAQ
How the Ritron LM-700DMR LoudMouth Wireless PA System Works
The LM-700DMR turns compatible two-way radio traffic into loud on-site announcements without dedicated PA wiring, conduit, or a complex fixed installation.
Use a compatible portable, mobile, or base station DMR radio to make live voice announcements or trigger stored audio messages through the LoudMouth receiver and horn speaker. This makes the LM-700DMR a strong fit for mass notification, safety alerts, shift changes, gate notices, evacuation instructions, and area-specific paging.
The receiver includes a built-in 8-watt audio amplifier and connects to an indoor/outdoor rated PA horn speaker with a 25-foot cord. Because the system uses your existing radio network, it is a cost-effective alternative when wired PA installation is impossible, temporary, or too expensive to justify.
For larger facilities, multiple receivers can be programmed for individual paging, group alerts, or multi-zone communication. The system can also work with radio repeaters for extended coverage across buildings, yards, parking areas, and other remote locations.
Why facilities choose LoudMouth
- Improves communication, safety, security, and productivity.
- Uses compatible existing two-way radio infrastructure.
- Places paging points exactly where sound is needed most.
- Supports both live announcements and prerecorded alerts.
- Delivers targeted zones or broader group notifications.
- Replaces broken or worn-out wired PA systems without new wire runs.
Key LM-700DMR Features
The LM-700DMR combines wireless flexibility with strong audio output, DMR signaling control, and practical facility-wide deployment options.
DMR Digital Only Operation
Designed for compatible DMR Tier II systems in VHF and UHF bands. This model is digital only and supports DMR signaling such as color codes, subscriber unit ID, destination type, and destination ID.
Live Paging or Record and Play
Use the system for live voice announcements or switch to Record and Play mode for repeatable, consistent messages in busy or high-noise environments.
Up to 4 Stored Messages
Store up to four prerecorded voice messages and selectively trigger each one using a UID from a compatible two-way radio.
Repeat and Delay Functions
Recorded messages can repeat automatically up to four times, and message delay options help tailor playback timing to your site or workflow.
Adjustable Loud Audio
Delivers up to 95 dB SPL at 50 feet with field- and PC-programmable volume settings. Audio can be tuned from 5% to 99% output to match the noise level of the site.
Visual Alert and Switch Input
A relay trigger can activate an optional strobe light for visual alerting, and an optional NO or NC switch can trigger a prerecorded voice message on a connected receiver/speaker.
Flexible Speaker and Zone Coverage
One receiver supports up to two PA speakers with the proper optional cable. Multiple receivers can be programmed for individual, group, or multi-zone paging across a facility.
Compact, Easy to Install Design
The receiver is small, lightweight, and supplied with a wall mounting bracket. For outdoor receiver installations, an optional LHM-100 weatherproof housing is available.
Technical Specifications
Product specifications for the Ritron LM-700DMR LoudMouth wireless public address system.
| Model | LM-700DMR |
|---|---|
| System Type | Wireless PA / public address receiver with indoor/outdoor horn speaker |
| Radio Compatibility | Compatible DMR portable, mobile, and base station radios |
| Radio Mode | DMR digital only, Tier II |
| Frequency Range | VHF 150-165 MHz / UHF 450-470 MHz |
| Operating Modes | Live Mode and Record and Play Mode |
| Stored Messages | Up to 4 prerecorded voice messages |
| Message Features | Automatic repeat up to 4 times, plus message delay feature |
| Decode Signaling | Color Codes, SUID, Destination Type, and Destination ID |
| Audio Output | Up to 95 dB SPL at 50 ft |
| Amplifier | Built-in 8-watt audio amplifier |
| Volume Control | Field and PC programmable, adjustable from 5% to 99% |
| Speaker Support | Supports 1 included PA horn speaker, or up to 2 PA speakers with optional cable |
| Included Speaker | Indoor/outdoor rated PA horn speaker with 25 ft cord |
| Power | 110-220 VAC operation; power supply included |
| Receiver Dimensions | 7 in H x 5 in W x 3 in D |
| Receiver Weight | 2 lb |
| Operating Temperature | -20°F to +140°F |
| Receiver Sensitivity | 12 dB SINAD @ 0.20 µV |
| Frequency Response | 300 to 3000 Hz de-emphasized |
| Mounting | Wall mounting bracket included; receiver should be mounted indoors away from the elements |
| Outdoor Receiver Option | Optional LHM-100 weatherproof fiberglass housing |
Applications for the LoudMouth Wireless PA System
The LM-700DMR is ideal anywhere facility communication needs to be loud, flexible, and fast without the cost of installing or replacing a wired PA network.
- Schools
- Hospitals
- Factories
- Warehouses
- Office Buildings
- Airports
- Marinas
- Parking Lots
- Construction Sites
- Lumber Yards
- Boat Yards
- Retail Yards
- Amusement Parks
- Golf Courses
- Sporting Events
- Special Events
What’s Included and Optional Accessories
Standard package contents for the LM-700DMR plus common LoudMouth accessories shown in the sales sheet.
What’s Included
- LM-700DMR receiver
- Dual-band whip antenna
- RPS-1B 110 VAC power supply
- 05500040 indoor/outdoor PA horn speaker with 25 ft cord
- Wall mounting bracket
Optional Accessories
- LHM-100 weatherproof fiberglass housing for outdoor receiver installation
- Strobe light for visual alerting
- Accessory cable 60201136 for visual alert relay connection
- External antenna
- Y-adapter / dual-speaker cable for connecting a second PA horn
- Additional PA horn speaker
Installation note: the horn speaker is indoor/outdoor rated, but the receiver should be mounted indoors unless it is installed in the optional weatherproof housing.
Frequently Asked Questions
Quick answers to common questions buyers ask about the Ritron LM-700DMR LoudMouth wireless PA system.
What is a wireless PA system?
A wireless PA system lets you deliver announcements through speakers using a radio network instead of running dedicated speaker wire or conduit. That makes it ideal for temporary sites, large outdoor areas, and facilities where wiring is difficult or expensive.
Does the LM-700DMR support analog radios?
No. The LM-700DMR is a DMR digital-only model. It is intended for compatible DMR Tier II radio systems in the supported VHF and UHF ranges.
Can I trigger prerecorded messages instead of making a live announcement?
Yes. The LM-700DMR supports Record and Play mode and can store up to four prerecorded messages. Each message can be selectively triggered using the proper UID from a compatible two-way radio.
Can one receiver support more than one PA speaker?
Yes. One receiver can support up to two PA speakers when used with the appropriate optional cable and an additional speaker.
Can the LM-700DMR be used in multi-zone paging?
Yes. Multiple LoudMouth receivers can be deployed throughout a facility and programmed for individual, group, or multi-zone paging depending on your radio signaling setup.
Can the receiver be installed outdoors?
The included horn speaker is indoor/outdoor rated. The receiver should be mounted indoors or placed inside the optional LHM-100 weatherproof housing for outdoor installations.
