MrRadioman - Home of Signal Stalker software to identify & analyze RF.
MrRadioman - Larry Shaefer
Projects we own now
Apps & Software we offer
Signal Stalker
Signal Stalker I and Signal Stalker II
The Signal Stalker feature provides a powerful new tool for you to rapidly detect and monitor frequencies for nearby radio transmissions similar to the Uniden Close Call feature on the Uniden scanners. Signal Stalker is similar to portable frequency counters but provide many advantages over typical frequency counters.
Signal Stalker feature is more sensitive than portable frequency counters and will detect transmissions at a greater distance. You can also activate the Attenuator to reduce the sensitivity if desired.
Signal Stalker I
You can set Signal Stalker I to work “in the background” while you are scanning other frequencies; turn off normal scanning while Signal Stalker works; or turn off Signal Stalker and use the scanner normally. You can set the (1) frequency band where you want the scanner to look for transmissions and turn on the pager screening feature so the scanner ignores common pager frequencies. You can also set the scanner so it alerts you when Signal Stalker I finds a frequency.
Available on the Pro-83, Pro-84, Pro-2051, and with the Pro-433, Pro-528, Pro-160 and Pro-162 has 10 autostore channels.
Signal Stalker II
Signal Stalker II allows you to watch for activity on all band frequencies or Police/Fire frequencies only. You can also turn on/off frequency sub-bands using the corresponding number keys.
Signal Stalker II will not work in the background like Signal Stalker I or Close Call.
Once an active frequency is found, the transmission is played through your scanner’s speaker, and you can quickly store it in any of your scanner’s memory locations.
Signal Stalker II functions by rapidly sweeping through the RF spectrum in 1 MHz segments. If RF signal energy is detected in a 1 MHz segment, Signal Stalker II will sweep through the 1 MHz segment in finer steps until the source of the RF signal energy is found.
You can change the normal Signal Stalker II operation to the Special Signal Stalker II operation. If you lock out 5 frequencies within a 1 MHz segment, the scanner will skip that segment in subsequent sweeps.
R.O.V.E.R
Project ROVER is a new robotic platform being developed for law enforcement and emergency services.
R.O.V.E.R. (Robotic Observation and Versatile Exploration Robot)
ROVER is a small four wheeled robot equipped with a variety of sensors, devices and capabilities, including BLE tracking, real time camera viewing, RF Grid mapping, deployable bi directional amplifier and a dedicated cellular network. ROVER can be used for a variety of tasks such as search and rescue, patrol, evidence collection, disaster response and active shooter response. The ROVER is still under development, but it could be a valuable tool for law enforcement.
Here are some of the key benefits of using ROVER:
- Increased officer safety: ROVER can help improve officer safety by allowing officers to enter dangerous or hazardous environments without putting themselves at risk.
-Improved Situational Awareness: ROVER can help improve officers' situational awareness by providing officers with real time images of their environment. This can help officers identify potential threats and make better decisions.
-Increased Efficiency: ROVER can help increase officer efficiency by allowing officers to focus on other tasks, such as crime scene investigation or medical care.
-Long term cost effectiveness: While the initial investment in developing and implementing robots can be significant, they can provide long term cost savings. Robots can perform repetitive and routine tasks with high accuracy and consistency, reducing the need for human labor in such areas.
This technology offers unprecedented levels of benefit, value and efficiency. It not only enhances asset security and protection, but also optimizes resource allocation, streamlines operations and brings peace of mind to those who rely on a robust security infrastructure.
All in all, Project ROVER is a promising new technology that can improve the security and efficiency of law enforcement.
Welcome to MrRadioman
ABOUT MRRADIOMAN - OUR STORY
Education: Larry graduated from La Marque High School in 1962, attended Lamar University in Beaumont from 1962-1964 (Majoring in Electrical Engineering), Served the La Marque Police Department from 1964-1965, Transferred to U of H 1964-1966 majoring in Electronics and Communications Technology. Judy grew up in Texas City, went to Texas City High School (1972) and College of the Mainland (1977-1978- Computer Science major) and the world of business and communications life learning as she goes.
They manage and own numerous Telecommunications and Tower Companies in the Houston / Angleton areas - which held FCC licenses in Texas - Colorado & New Mexico. Larry has been selling all types of electronics since he was a young teenager. He sold a CCTV security video system to the Borden Milk company in the 1960's to find out who was stealing the milk bottles and bought every seat and escalator, scoreboard and more from the Sam Houston Coliseum in Houston Texas. He mentored young men and colleagues in two-way radio and business practices. To this day we still has some of the foot rails from the old Livestock show's Corral Club bar. You never know what he has purchased to sell from many an auction!!!
Larry was a member of the City of Houston Tower ordinance Committee for the 1980 & 1990 revisions. He assisted Angleton, Missouri City, Hedwig Village, Heights Association and Near-town Civic Association on tower locations and issues.
He has done research and development of business-related News stories for Channel 11 (Dave Fehling), Channel 13 (Marvin Zindler and Wayne Dolcefino), the Houston Chronicle and The Sentinel Newspapers (Freeport). He has also provided them with props for stories. Judy helped program radios for various groups and events in the Houston area. Larry was asked to provide cell phones for the Robocop movie series when filmed in Houston.
We have been in the communications business in one facet or another since 1964. Our founding partner, Larry Shaefer has gone from repairing, to designing to constructing various types of systems since high school & college. Larry spent several years working at NASA as an apprentice on the Apollo /L.I.M. Communications and Nuclear transport programs. Larry taught Judy what a resistor was in 1977 when he owned the Radio Shack franchise store in La Marque, TX and they married in 1981 and have been working together ever since. We lost our Larry in a hard fight to cancer in late 2023 and Judy took a new direction in purchasing multiple RF type software packages and apps from one the young men Larry mentored.
Beginning in retailing and support staff, Judy has sold everything from small electronic components to stereos, TV's, movies and computers. She also spent time in the 1970's to the early 1990's typing those multi-part carbon-copy FCC forms when you could not make a mistake, or the Federal Communications Commission would return it. She & Larry have been leasing tower space to wireless carriers and others since 1990. Judy learned to use ULS to bid on the RCC and VPC 43, 152, 450 & 931 MHZ License Spectrum and updating license requirements on the WTB / ULS Licensing section of FCC.gov as the Office Manager for our various corporations and investments.
Larry had vision and the intelligence to understand this business and the changes that have been made throughout the past 40+ years and has managed to shape his businesses to conform to what it takes to participate in this industry and share his knowledge with others along the way. Judy is carrying on his legacy and working on helping others and learning new technology with the apps and software.
Larry will be missed every day
- Judy Shaefer
ABOUT MRRADIOMAN - OUR STORY. continued
Larry & Judy with Kid Prodigy who we mentored since he was 11 yrs old - Brian Martin.
Grid Testing for Public Safety Radio Coverage
Public safety radio coverage is essential for first responders to communicate effectively in the event of an emergency. However, buildings can often block radio signals, making it difficult for first responders to communicate inside. Grid testing is a method of measuring and mapping radio signal coverage in a building. This information can be used to identify areas where radio signal coverage is weak or non-existent, and to install equipment to improve coverage.
Grid testing is typically conducted by a qualified professional using specialized equipment. The process involves dividing the building into a grid of squares or rectangles, and then testing the radio signal strength at each point in the grid. The results of the test are then used to create a map of radio signal coverage.
Grid testing is an important part of ensuring that public safety radio coverage is adequate in all areas of a building. By identifying and addressing areas with weak or non-existent radio signal coverage, first responders can be assured that they will be able to communicate effectively in the event of an emergency.
Benefits of Grid Testing
There are many benefits to grid testing for public safety radio coverage. Some of the benefits include:
- Improved communication for first responders: Grid testing can help to identify areas where radio signal coverage is weak or non-existent. This information can then be used to install equipment to improve coverage, which can help to ensure that first responders can communicate effectively in the event of an emergency.
- Increased safety for first responders: Improved communication can help to increase the safety of first responders by allowing them to communicate with each other and with dispatch more easily. This can be especially important in emergency situations where first responders need to coordinate their actions quickly and effectively.
- Reduced risk of property damage: Grid testing can help to identify areas where radio signal interference is occurring. This information can then be used to take steps to reduce or eliminate the interference, which can help to reduce the risk of property damage caused by electrical fires or other incidents.
How to Conduct Grid Testing
Grid testing can be conducted by a qualified professional using specialized equipment. The process typically involves the following steps:
1. Divide the building into a grid of squares or rectangles.
2. Test the radio signal strength at each point in the grid.
3. Create a map of radio signal coverage.
The size of the grid will vary depending on the size of the building. For large buildings, it may be necessary to divide the building into multiple grids. The type of equipment used for grid testing will also vary depending on the size and type of building.
Conclusion
Grid testing is an important part of ensuring that public safety radio coverage is adequate in all areas of a building. By identifying and addressing areas with weak or non-existent radio signal coverage, first responders can be assured that they will be able to communicate effectively in the event of an emergency.
