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Guardian (121.5)
- Reads the 121.5 MHz frequency and the 121.775 MHz test frequency.
- The Guardian is designed for cost-conscious first responders seeking a Search and Rescue (SAR) tool that focuses solely on locating lost individuals using the 121.5 MHz frequency. This version of the Guardian product line is our most rugged SAR tool and was developed in response to feedback from users who wanted a device without an attached phone. As a result, the standard Guardian does not include an Android phone or the GuardianRDF app.
- Due to the broad nature of RDF antennas (as much as 20 degrees variance), readings from multiple locations must be taken to triangulate the source which greatly increases the search area, and related time, effort, and costs. But not with the Guardian®.
- The high-tech approach taken by GuardianRescue provides a much narrower search band of 3-5 degrees variance with the proper application and RF tuning.
- Weather permitting, line-of-sight testing has proven the Guardian® can locate beacons in at least a 10 mile range.
- Technical Specifications:
- · Receiver:
- Minimum Detectable Signal: -120 dBm
- Image Rejection: >30dB
- Oscillator Stability: +/- 0.5 ppm
- RF Filtering:
- Center Frequency: 122 MHz
- Passband: 119 - 125 MHz
- Stop Band Rejection: > 40dB
- This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. .
Many in the Civil Air Patrol have been trained to conduct searches by recording vectors on a map. If you've been trained in this method, this is the product for you.
We provide expert training on the use of the Guardian.
We field-test each product before shipping it to our customers.