2AOWY-004ARemote Sensor

USER’S MANUAL Sensor Integration Device for Watermark Probes Phone:531-500-3817 Page 2 of 17 3300 Folkways Circle RealmFive.com Lincoln, NE 68504 Revision Sheet Release No. Date Revision Description Rev. A 04/24/2018 Release Phone:531-500-3817 Page 3 of 17 3300 Folkways Circle RealmFive.com Lincoln, NE 68504 Table of Contents 1 General ................................................................................................................................................ 4 1.1 System Overview ....................................................................................................................... 4 1.2 Features ...................................................................................................................................... 4 1.3 Acronyms and Abbreviations ................................................................................................... 5 1.4 Important FCC and IC Compliance Information .................................................................. 5 1.5 User Information ....................................................................................................................... 6 1.5.1 Enclosure ............................................................................................................................................... 6 1.5.2 Installation Packet Series ....................................................................................................................... 6 1.5.3 User Input .............................................................................................................................................. 6 1.5.4 Indicator Description ............................................................................................................................. 6 1.5.5 Orientation ............................................................................................................................................. 6 1.6 Cloud Data Services................................................................................................................... 7 1.7 Points of Contact ........................................................................................................................ 7 1.7.1 Installation User Interface ...................................................................................................................... 7 1.7.2 Obtaining a Login .................................................................................................................................. 7 1.7.3 Obtaining Help ....................................................................................................................................... 7 2 Installation ........................................................................................................................................... 8 Phone:531-500-3817 Page 4 of 17 3300 Folkways Circle RealmFive.com Lincoln, NE 68504 1 GENERAL 1.1 System Overview The Sensor Integration Device for Watermark Probes (SID-WM) is an end device in the Internet of Things (IoT) for agriculture. Its job is to periodically read up to four Watermark soil moisture probes (model 200SS) and a soil temperature probe (model 200TS) and report the readings to the cloud via a Gateway device. The Gateway listens for packets from edge devices and periodically makes a cellular data connection to forward the accumulated edge device packets to a server along with its own packets. The Gateway acknowledges packets from edge devices. The Gateway also holds downlink packets from the server for edge devices and sends them to the device after the next uplink packet from the device in lieu of an acknowledge. 1.2 Features The SID-WM includes the following features: • Low power microcontroller • Probe measurement circuit • Low power, long range radio for communication to Gateway • GPS receiver for device location • Non-volatile memory for configurable read intervals • Non-volatile memory for data storage when a Gateway is not available • Red-green-blue LED status indicator • Accelerometer for user input • Sonalert to aid locating the device in crop • Ultra-low power sleep enabling extended operating time from two AA batteries Phone:531-500-3817 Page 5 of 17 3300 Folkways Circle RealmFive.com Lincoln, NE 68504 1.3 Acronyms and Abbreviations Term Description API Application Interface cB Centi-Bars cm Centimeters CPVC Chlorinated Polyvinyl Chloride FCC Federal Communications Commission GPS Global Positioning System ID Unique Identification Number IoT Internet of Things LED Light Emitting Diode QR Quick Response RSS Radio Standards Specification RSSI Received Signal Strength Indicator s Seconds URL Universal Resource Locator UTC Universal Time Coordinated V Volts ‘ Feet “ Inches 1.4 Important FCC and IC Compliance Information Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate this equipment. This product meets the applicable FCC Part 15 rules. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. To limit RF exposure, please ensure 8 inches (20 cm) of separation from the transmitter antennas at all times. Phone:531-500-3817 Page 6 of 17 3300 Folkways Circle RealmFive.com Lincoln, NE 68504 1.5 User Information 1.5.1 Enclosure The SID-WM has a lid that may be opened for access to the probe wire connections, wire release buttons and the LED indicator. The lid should always be snapped closed tightly when installation is complete, taking care to route the probe wires through the slot provided between the lid and the base. Failure to do so will allow moisture to enter the enclosure which will likely cause failure. 1.5.2 Installation Packet Series The SID-WM will automatically send four data packets via radio to the Gateway after…

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R=Al-l t Certification Application Attestation Statements Date: April 12,2023 American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 To Whom It May Concern: Statement for 47 CFR section 2.911(dXSXi) RealmFive. Inc. certifies that as of the date of the application the equipment for which authorization is sought is not "covered" equipmentl prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, including affiliates or subsidiaries of the named companies, the applicant must include an explanation on why the equipmeht is not "covered" equipment. Additional Explanation: <N/A> Statement for 47 CFR section 2.911(dX5Xii) RealmFive. Inc. ("the applicant") certifies that, as of the date of the filing of this application, the equipment is not identified on the Covered List as an entity producing "covered" equipment. Thank you, By: Title: Company: Timothy Adkins (Print name) Embedded Systems Engineer RealmFive, Inc Telephone: (844)732-s624 r-'IheCornrnission'sCorcrcdl.istispublishedbythePublicSaferyandllornelandSecurityBureauandpostedontheCotnmission's website. Thrs Covered List, which is periodically updated, identihes particular equiprnent, produced by particular entities, that constitutes "covered" equiptnent. https://www.fcc,gov/supplvchain/coveredlist . 3300 Folkways Cr. Lincoln, NE 68504 (844)REALM-AC ,de*

R=Al-l t U.S. Agent Designation for Service of Process TO: American Certification Body, lnc. 313 ParkAvenue Suite 300 Falls Church,VA 22046 ATTENTION: FCC Certification - Section 2.911(dX7) Information This letter is to confirm that the Applicant will also serve as the U.S. Agent for Service of Process as required by 47 CFR 2.911(d)(7). The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and impoftation OR the conclusion of any Commission-related proceeding involving the equipment. The Applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information changes. Applicant Company name: RealmFive, lnc. FRN:0027176841 Grantee Code: 2AOWY Contact Name: Timothy Adkins Street Address: 3300 Folkways Circle City/Province/Zip: Lincoln, NE 68504 Telephone No: (844)732-5624 Email : [email protected] Applicant Signature: Date: O+-l2- 7o2\ Y,*ar-, ).tu r Signed by (Printed Name/Title): Timothy Adkins 3300 Folkways Cr. Lincoln, NE 68504 (844)REALM AC

` 042622-16 Authority to Act as Agent Date: 5 May 2023 American Certification Body, Inc. 313 Park Avenue Suite 300 Falls Church, VA 22046 To Whom It May Concern: Nic Johnson of the Nebraska Center for Excellence in Electronics is authorized to act on our behalf, until otherwise notified, for applications to American Certification Body, Inc. (ACB). We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. We also declare that the information provided to the FCC is true and correct to the best of our knowledge (47 CFR 2.911(d)) and we have been informed of the grantee responsibilities (47 CFR 2.909) with regard to certified equipment. Thank you, Agency Agreement Expiration Date: 12 months By: ____ ______________________ Timothy Adkins________________ (Signature 1 ) (Print name) Title: Embedded Systems Engineer___ On behalf of: RealmFive Inc.______________ (Company Name) Telephone: (402) 301-9618_______________ 1 - Must be signed by applicant contact given for applicant on the FCC site, or by the authorized agent if an appropriate authorized agent letter has been provided. Letters should be placed on appropriate letterhead.

Page 1 of 1 Request for Confidentiality Date: May 6, 2022 Subject: Confidentiality Request for: FCC ID: 2AWOWY-004A IC: N/A Pursuant to FCC 47 CFR 0.457(d) and 0.459 and IC RSP-100, Section 9.4, the applicant requests that a part of the subject FCC application be held confidential. Type of Confidentiality Requested Exhibit ☐ Short Term ☒ Permanent ☐ Not Provided Block Diagrams ☐ Short Term ☐ Not Provided External Photos ☐ Short Term ☐ Permanent ☐ Not Provided Internal Photos ☐ Short Term ☒ Permanent ☐ Not Provided Operation Description/Theory of Operation ☐ Short Term ☐ Permanent ☒ Not Provided Parts List & Placement/BOM ☐ Short Term ☐ Permanent ☒ Not Provided Tune-Up Procedure ☐ Short Term ☒ Permanent ☐ Not Provided Schematics ☐ Short Term ☐ Not Provided Test Setup Photos ☐ Short Term ☐ Permanent ☐ Not Provided User’s Manual The above-mentioned company has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality: The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality (if applicable): The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify ACB in the event information regarding the product or the product is made available to the public before the requested period has expired. ACB will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04- 1705. NOTE for Industry Canada Applications: IC currently only distinguishes Permanent Confidentiality exhibits as shown above. Short Term confidentiality is not considered Provided to IC applications Sincerely, By: __________________________ Nic Johnson, Technical Manager, NCEE Labs

EXTERNAL PHOTOS EXTERNAL PHOTOS EXTERNAL PHOTOS EXTERNAL PHOTOS

LABEL Label is thermal printed indelibly on vinyl material that is intended to last the lifetime of the device. Module FCC ID will be visible upon installation of the device since the installer will need to open it to install the power wires. LABEL LABEL

INTERNAL PHOTOS 902.3 – 914.9 MHz antenna GPS antenna BLE antenna (unused) INTERNAL PHOTOS INTERNAL PHOTOS With top cover I/O port connections INTERNAL PHOTOS

RF Exposure Page 1 of 2 Reference: CFR 47 FCC Part 1.1310 Description: All measurements were peak or RMS power readings taken from test reports from accredited test labs. Where relevant, antenna gains were taken from the manufacturer’s specifications. Limits: Maximum exposure limits from CFR 47, FCC Part 1.1310: Table 1 - Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposure 0.3-3.0 614 1.63 *100 6 3.0-30 1842/f 4.89/f *900/f 2 6 30-300 61.4 0.163 1.0 6 300-1,500 f/300 6 1,500-100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *100 30 1.34-30 824/f 2.19/f *180/f 2 30 30-300 27.5 0.073 0.2 30 300-1,500 f/1500 30 1,500-100,000 1.0 30 RF Exposure Page 2 of 2 Calculations: Transmitter Frequency Antenna Gain* Duty cycle Power Power Power + 10% Power Density Limit at specified distance % of limit Type MHz numerical dBm mW mW mW/cm^2 mW/cm^2 Percent of limit 1 902.3 1 100% 17.94 62.23 68.45 0.01363 0.60 2.27% Peak 1 908.5 1 100% 17.41 55.08 60.59 0.01206 0.61 1.99% Peak 1 914.9 1 100% 18.13 65.01 71.51 0.01423 0.61 2.33% Peak PASS? YES Distance 20 cm The power density is calculated as shown below: S = (P x G x DC)/(4 x π x d^2) – used to calculate exposure at 20 cm d = √(S/(P x G) x 4 X π) – used to calculate minimum distance to meet limits 1 mW/cm^2 = 10 W/m^2 S= power density P = transmitter power (in mw). G = antenna numeric gain d = distance to radiation center DC = Duty Cycle *Power values taken from EIRP, so antenna gain was set to 1 (numeric)

The Nebraska Center for Excellence in Electronics (NCEE) authorizes the above named company to reproduce this report provided it is reproduced in its entirety for use by the company’s employees only. Any use that a third party makes of this report, or any reliance on or decisions made based on it, are the responsibility of such third parties. NCEE accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. This report applies only to the items tested. Amended FCC/ISED Test Report Prepared for: RealmFive, Inc. Address: 3300 Folkways Cir. Lincoln, NE 68504 Product: SID-WD Test Report No: R20171017-22-02C Approved By: __________________ Nic S. Johnson, NCE Technical Manager iNARTE Certified EMC Engineer #EMC-003337-NE DATE: 15 May 2023 Total Pages: 57 Report Number: R20171017-22-02 Rev C Prepared for: RealmFive, Inc. The Nebraska Center for Excellence in Electronics 4740 Discovery Drive Lincoln, NE 68521 Page 2 of 57 REVISION PAGE Rev. No. Date Description 0 1 October 2018 Original – NJohnson Prepared by KVepuri A 16 September 2019 Modified Section 2.2 Includes NCEE Labs report R20171017-22-02 and its amendment in full. -NJ B 8 May 2023 20 dB BW added Updated conducted output power limit C 15 May 2023 Corrected typo in Section 4.3. Added ntoe about 10 MHz RBW used for EIRP. Report Number: R20171017-22-02 Rev B Prepared for: RealmFive, Inc. The Nebraska Center for Excellence in Electronics 4740 Discovery Drive Lincoln, NE 68521 Page 3 of 57 CONTENTS Revision Page ....................................................................................................................................................... 2 1.0 Summary of test results.................................................................................................................... 4 2.0 EUT Description ................................................................................................................................. 5 2.1 Equipment under test ............................................................................................................... 5 2.2 Description of test modes ....................................................................................................... 5 2.3 Description of support units ................................................................................................... 5 3.0 Laboratory description ..................................................................................................................... 6 3.1 Laboratory description ............................................................................................................ 6 3.2 Test Personnel .......................................................................................................................... 6 3.3 Test equipment .......................................................................................................................... 7 4.0 Detailed results................................................................................................................................... 8 4.1 Duty Cycle .................................................................................................................................. 8 4.2 Radiated emissions .................................................................................................................. 9 4.3 Peak Output Power ................................................................................................................. 18 4.4 Bandwidth ................................................................................................................................ 22 4.5 Bandedges ............................................................................................................................... 30 4.6 Power Spectral Density.......................................................................................................... 44 4.7 Carrier frequency seperation, number of hopping channels, time of occupancy ...... 49 Appendix A: Sample Calculation ................................................................................................................ 54 Appendix B – Measurement Uncertainty ................................................................................................... 56 REPORT END.................................................................................................................................................. 57 Report Number: R20171017-22-02 Rev B Prepared for: RealmFive, Inc. The Nebraska Center for Excellence in Electronics 4740 Discovery Drive Lincoln, NE 68521 Page 4 of 57 1.0 SUMMARY OF TEST RESULTS The EUT has been tested according to the following specifications: APPLIED STANDARDS AND REGULATIONS Standard Section Test Type Result FCC Part 15.35 RSS Gen, Issue 4, Section 6.10 Duty Cycle Pass FCC Part 15.247(a)(1) RSS-247 Issue 2 Section 5.2 Peak output power Pass FCC Part 15.247(a)(1) RSS-247 Issue 2 Section 5.2 Bandwidth Pass FCC Part 15.209 RSS-Gen Issue 4, Section 7.1 Receiver Radiated Emissions Pass FCC Part 15.209 (restricted bands), 15.247 (unrestricted) RSS-247 Issue 2 Section 5.5, RSS-Gen Issue 4, Section 8.9 Transmitter Radiated Emissions Pass FCC Part 15.247(a)(1) RSS-247 Issue 2 Section 5.2 Power Spectral Density Pass FCC 15.247(a) (1) (i) RSS-247, 5.1(c) Frequency Hopping System Pass FCC Part 15.209, 15.247(d) RSS-247 Issue 2 Section 11.13 Band Edge Measurement Pass FCC Part 15.207 RSS-Gen Issue 4, Section 7.1 Conducted Emissions Not applicable. Battery power only, no charger. FCC 15.203 Unique Antenna Requirement Pass See Section 4 for details on the test methods used for each test. Report Number: R20171017-22-02 Rev B Prepared for: RealmFive, Inc. The Nebraska Center for Excellence in Electronics 4740 Discovery Drive Lincoln, NE 68521 Page 5 of 57 2.0 EUT DESCRIPTION 2.1 EQUIPMENT UNDER TEST EUT SID-WD EUT Received 11 Apr…

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Datasheet ANT-916-HESM ANT-916-HETH HE Series 916 MHz Helical Antenna Features • Performance at 916 MHz ―VSWR: ≤ 1.5 ―Peak Gain: 6.4 dBi ―Efficiency: 75% • Direct PCB attachment • Reflow- or hand-solder assembly • Omnidirectional radiation pattern • Compact size ―25.4 mm x 15.3 mm x 8.9 mm Linx 916 MHz HE series compact printed circuit board (PCB) mount helical monopole antennas support low-power, wide-area (LPWA) applications including LoRaWAN ® , remote controls, and ISM band applications in the 902 MHz to 930 MHz range. The HE series antennas are made from 1.3 mm diameter berylium copper for use in PCB-mount installations requiring a rugged antenna design. Designed for reflow-solder mounting directly to a printed circuit board for high-volume applications, the 916-HESM offers a surface-mount design and the 916-HETH is for use in a through-hole installation. Ordering Information Part NumberDescription ANT-916-HESM 916 MHz helical surface-mount antenna ANT-916-HETH 916 MHz helical through-hole antenna Available from Linx Technologies and select distributors and representatives. Applications • Low-power, wide-area (LPWA) applications ―LoRaWAN ® • Remote sensing, monitoring and control ―Security systems ―Industrial machinery ―Automated equipment ―AMR (automated meter reading) • Internet of Things (IoT) devices • Smart Home networking • Hand-held devices 2 DatasheetANT-916-HE Series Table 1. Electrical Specifications ANT-916-HExx916 MHz Frequency Range 902 MHz to 930 MHz VSWR (max) 1.5 Peak Gain (dBi) 6.4 Average Gain (dBi) -1.4 Efficiency (%) 75 Polarization Linear Radiation Omnidirectional Max Power 15 W Wavelength 1/4-wave Electrical Type Monopole Impedance 50 Ω ESD Sensitivity NOT ESD sensitive. As a best practice, Linx may use ESD packaging. Electrical specifications and plots measured with a 84.0 mm x 38.0 mm (3.31 in x 1.50 in) reference ground plane. Table 2. Mechanical Specifications ANT-916-HExx Connection ANT-916-HESM = surface-mount, ANT-916-HETH = through-hole Operating Temperature Range -40 °C to +85 °C Weight 1.0 g (0.04 oz) Dimensions 25.4 mm x 15.3 mm x 8.9 (1.00 in x 0.60 in x 0.35 in) Product Dimensions Figure 1 provides dimensions of the 916-HESM antenna. The dimensions of the 916-HETH antenna are shown in Figure 2. 38.1 mm (1.50 in) 315 1.3mm 0.05in 15.3mm 0.60in 8.9mm 0.35in Ø1.3 mm (0.05 in) 15.3 mm (0.60 in) Ø8.9 mm (0.35 in) Ø1.3 mm (0.05 in) 15.3 mm (0.60 in) Ø8.9 mm (0.35 in) Ø1.3 mm (0.05 in) 15.3 mm (0.60 in) Ø8.9 mm (0.35 in) 25.4 mm (1.00 in) 868/ 916 38.1 mm (1.50 in) 433 38.1 mm (1.50 in) 418 HESM Series Figure 1. 916-HESM Antenna Dimensions 38.1 mm (1.50 in) 315 Ø1.3 mm (0.05 in) 15.3 mm (0.60 in) Ø8.9 mm (0.35 in) Ø1.3 mm (0.05 in) 15.3 mm (0.60 in) Ø8.9 mm (0.35 in) 38.1 mm (1.50 in) 418 Ø1.3 mm (0.05 in) 15.3 mm (0.60 in) Ø8.9 mm (0.35 in) 38.1 mm (1.50 in) 433 Ø1.3 mm (0.05 in) 15.3 mm (0.60 in) Ø8.9 mm (0.35 in) 25.4 mm (1.00 in) 868/ 916 HETH Series Figure 2. 916-HETH Antenna Dimensions Packaging Information The HE series antennas are packed in a clear plastic PVC bag, labeled with model number and quantity. Distribution channels may offer alternative packaging options. 3 DatasheetANT-916-HE Series VSWR Figure 3 provides the voltage standing wave ratio (VSWR) across the antenna bandwidth. VSWR describes the power reflected from the antenna back to the radio. A lower VSWR value indicates better antenna performance at a given frequency. Reflected power is also shown on the right-side vertical axis as a gauge of the percentage of transmitter power reflected back from the antenna. 902930 0 10 20 30 40 1 2 3 4 5 900905910915920925930935 Reflected Power (%) VSWR Frequency (MHz) Figure 3. ANT-916-HE Series VSWR Return Loss Return loss (Figure 4), represents the loss in power at the antenna due to reflected signals. Like VSWR, a lower return loss value indicates better antenna performance at a given frequency. 902930 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 900905910915920925930935 Return Loss (dB) Frequency (MHz) Figure 4. ANT-916-HE Series Return Loss 4 DatasheetANT-916-HE Series Peak Gain The peak gain across the antenna bandwidth is shown in Figure 5. Peak gain represents the maximum antenna input power concentration across 3-dimensional space, and therefore peak performance at a given frequency, but does not consider any directionality in the gain pattern. 902930 -20 -15 -10 -5 0 5 10 900905910915920925930935 Peak Gain (dBi) Frequency (MHz) Figure 5. ANT-916-HE Series Peak Gain Average Gain Average gain (Figure 6), is the average of all antenna gain in 3-dimensional space at each frequency, providing an indication of overall performance without expressing antenna directionality. 902930 -20 -15 -10 -5 0 5 10 900905910915920925930935 Average Gain (dBi) Frequency (MHz) Figure 6. ANT-916-HE Series Antenna Average Gain 5 DatasheetANT-916-HE Series Radiation Efficiency Radiation efficiency (Figure 7), shows the ratio of power delivered to the antenna relative to the power radiated at the antenna, expressed as a percentage, where a higher percentage indicates better performance at a given frequency. 902930 0 10 20 30 40 50 60 70 80 90 100 900905910915920925930935 Efficiency (%) Frequency (MHz) Figure 7. ANT-916-HE Series Antenna Radiation Efficiency 6 DatasheetANT-916-HE Series Radiation Patterns Radiation patterns provide information about the directionality and 3-dimensional gain performance of the antenna by plotting gain at specific frequencies in three orthogonal planes. Antenna radiation patterns for an edge straight orientation are shown in Figure 8 using polar plots covering 360 degrees. The antenna graphic at the top of the page provides reference to the plane of the column of plots below it. Note: when viewed with typical PDF viewing software, zooming into radiation patterns is possible to reveal fine detail. XZ-Plane GainYZ-Plane GainXY-Plane Gain 902 MHz to 930 MHz (915 MHz) -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1…

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TEST SETUP PHOTOS TEST SETUP PHOTOS TEST SETUP PHOTOS TEST SETUP PHOTOS TEST SETUP PHOTOS TEST SETUP PHOTOS TEST SETUP PHOTOS TEST SETUP PHOTOS