Test Report Revised

FCC ID: EO9100G

Test Report

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FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 REGULATORY COMPLIANCE REPORT TITLE: FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Device (100G) AUTHOR: Jon Mueller REV CCO DESCRIPTION OF CHANGE DATE APPROVALS Engineering Jon Mueller 1 INITIAL RELEASE Engineering REVISION HISTORY Engineering Engineering Engineering Page 1 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Test Data Summary FCC 15.247 / IC RSS-210 Frequency Hopping Device (100G), 908 – 924 MHz FCC ID: EO9100G / IC ID: 864D-100G Device Model: ERG-5000 Model Numbers: ERG-5000-005, ERG-5000-006 OATS Registration Number: FCC 90716, IC 5615 Max. Rule Description Pass/Fail Reading N/A (battery Part 15.31(e) Variation of Input Voltage - Conducted N/A device) N/A (battery Part 15.207 / RSS-Gen 7.2.2 AC Powerline Conducted Emissions N/A device) Part 15.247(a)(1) / Carrier Frequency Separation 195 kHz Pass RSS-210 A8.1(2) Part 15.247(a)(1)(i) / Number of Hopping Channels 50 Pass RSS-210 A8.1(3) Part 15.247(a)(1)(i) / 20dB Bandwidth 186 kHz Pass RSS-210 A8.1(3) Part 15.247(b) (2) / 20.6 dBm @908 Power Output – Radiated (EIRP) Pass RSS-210 A8.4(1) Mhz Part 15.247(d) / -43.07 dBc Spurious Emissions - Radiated Pass RSS-210 A8.5 @1830 Mhz Parts 15.205 & 15.209 / Restricted Bands / Spurious 5.08 dB Margin RSS-210 2.2, 2.6 Tables 1 & Pass Emissions - Radiated @ 2745 MHz 2 Part 15.247(a)(1)(i) / Time of Occupancy 5.88 mS Pass RSS-210 A8.1(3) Noise floor emissions RSS-210 Gen 7.2.3 Receiver Spurious Emissions below Pass 25dbuV/m @ 915MHz Parts 1.1310 & 2.1091 / Limits for Maximum Permissible 0.0425 mW/cm2 Pass RSS-102 Exposure (MPE) Rule versions: FCC Part 1 (01-2006), FCC Part 2 (01-2006), FCC Part 15 (02-2006), RSS-102 (11-2005), RSS-210 Issue 6 (09-2005), RSS- Gen Issue 1 (09-2005). Reference docs: ANSI C63.4-2003, DA 00-705 (03-30-2000), OET65 (08-1997), OET65C (06-2001), IEEE C95.3-2002. Cognizant Personnel Name Title Mark Kvamme Test Technician Name Title Jon Mueller Regulatory Engineer Name Title Jon Mueller R&D Manager Page 2 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 15.247(a) (1) / RSS-210 A8.1 (2) in one of the subparagraphs of this Carrier Frequency Separation Section. Submit this plot. Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum Equipment Serial Cal Date Due of 25 kHz or the 20 dB bandwidth of the hopping Used Number channel, whichever is greater. Spectrum Verify that the channel separation is > the Analyzer MY45113415 7-Aug-07 8-Aug-08 20dB bandwidth of a single transmission. EMCO The EUT must have its hopping function 3148 Log enabled. Use the following analyzer periodic 9901-1044 24-Oct-06 24-Oct-08 settings: Huber&Suh RBW ≥ 1% of the span ner 40 foot VBW ≥ RBW cable 220297 001 09-Apr-07 09-Apr-08 Sweep = auto Date Tested by Detector function = peak Trace = max hold 9/28-29/2007 Mark Kvamme Allow the trace to stabilize. Use the 10/1/2007 marker-delta function to determine the separation between the peaks of the Min carrier separation is 195 kHz. adjacent channels. The limit is specified Max carrier separation is 205 kHz. Page 3 11/2/2007

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FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 15.247(a) (1) (i) / RSS-210 A8.1 (3) Equipment Serial Cal Date Due Number of Hopping Channels Used Number For frequency hopping systems operating in the 902-928 MHz band: if the 20 dB bandwidth of the hopping channel Hewlett 3229A0023 2-Oct-07 2-Oct-08 is less than 250 kHz, the system shall use at least 50 Packard 9 hopping frequencies. 8591E The EUT must have its hopping function Spectrum enabled. Use the following spectrum analyzer Analyzer settings: Span = the frequency band of operation Roberts NA NA NA RBW ≥ 1% of the span Dipole VBW ≥ RBW antenna Sweep = auto Cable: NA NA NA Detector function = Peak Pasternack Trace = max hold RG214/U Allow the trace to stabilize. It may prove Date Tested by necessary to break the span up into sections, in order to clearly show all of the hopping 10/20/2006 Mark Kvamme frequencies. The limit is specified in one of the subparagraphs of this Section. Submit this There are 50 channels. The maximum plot(s). Measurements are relative to transmissions that will occur in 20 seconds is 6. demonstrate number of channels and channel The maximum number of transmission in 20 spacing. seconds that will occur on any one channel is one. Page 5 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Two new screen shots of the 50 channels done in the anechoic chamber Upper 25 channels Lower 25 channels Page 6 11/2/2007

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FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 15.247(a) (1) (i) / RSS-210 A8.1 (3) 20 dB Bandwidth Verify that the 20 dB bandwidth is less than the 200KHz width of the hopping channel. Use the following spectrum analyzer settings: Span = 400 KHz centered on a hopping channel. 400 KHz is approximately 2 times the 20 dB bandwidth of the hopping channel. RBW ≥ 1 Mhz when measuring total power. 3Khz (approximately 1% of the 20 dB bandwidth) when measuring -20 dB down relative to total power VBW ≥ 30 KHz (100 times RBW) Sweep = auto Detector function = peak Trace = max hold The EUT should be transmitting at its maximum data rate. Set RBW to 1 MHz , select max hold, and measure total TX Power (Reference Power) Set a reference line 20 dB below the reference power measured in the previous step. Set RBW to 3KHz. Select peak power and capture the modulated spectrum and press View B. This will take several minutes due to the occasional short transmissions. Place a marker at the lower frequency 20 dB down point on the modulated spectrum. Press Marker Delta and mark the upper frequency 20 dB down point. The indicated delta frequency is the 20 dB bandwidth of the emission, This is also the 99% bandwidth. In general, If this value varies with different modes of operation (e.g., data rate, modulation format, etc.), repeat this test for each variation. For this product only one data rate and modulation mode is used. The limit is specified in one of the subparagraphs of this Section. Submit this plot(s). Equipment Used Serial Cal Date Due Number Hewlett Packard 8593E Spectrum Analyzer 3543A02032 2-Oct-07 2-Oct-08 3-May- 3-May- Huber&Suhner 18 inch. Sma to N 220057 002 2007 2008 Date Tested by 10/2,3/07 Mark Kvamme 20 dB Occupied Bandwidth 909.900 MHz = 133 kHz 914.600 MHz = 136 kHz 921.800 MHz = 138 kHz Page 8 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Page 9 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Page 10 11/2/2007

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FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 15.247(a) (1) (i) / RSS-210 A8.1 (3) Time of Occupancy Verify that the transmitted signal does not occupy a single frequency for more than 400 mS. The EUT must have its hopping function enabled. Use the following spectrum analyzer settings: Span = zero span, centered on a hopping channel RBW = 1 MHz VBW ≥ RBW Sweep = as necessary to capture the entire dwell time per hopping channel Detector function = peak Trace = max hold If possible, use the marker-delta function to determine the dwell time. If this value varies with different modes of operation (e.g., data rate, modulation format, etc.), repeat this test for each variation. Submit this plot(s). Equipment Used Serial Number Cal Date Due Spectrum Analyzer MY45113415 7-Aug-07 8-Aug-08 EMCO 3148 Log periodic 9901-1044 24-Oct-06 24-Oct-08 Huber&Suhner 40 foot cable 220297 001 09-Apr-07 09-Apr-08 Date Tested by 10/2/07 Mark Kvamme Each transmission is 5.88 mS long. Each transmission takes place on one of 50 different channels in a pseudo-random sequence. All 50 channels are used equally on the average. The Page 12 11/2/2007

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FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 15.247(b) (2) / RSS-210 A8.4 (1) Power Output (EIRP) For frequency hopping systems operating in the band 902-928 MHz, the maximum peak conducted output power shall not exceed 1.0 W, and the e.i.r.p. shall not exceed 4 W, if the hopset uses 50 or more hopping channels. Use the following spectrum analyzer settings: Span = approximately 5 times the 20 dB bandwidth, centered on a hopping channel. RBW > the 20 dB bandwidth of the emission being measured. VBW ≥ RBW Sweep = auto Detector function = peak Trace = max hold Allow the trace to stabilize. Use the marker-to-peak function to set the marker to the peak of the emission. The indicated level is the peak output power. The limit is specified in one of the subparagraphs of this Section. Submit this plot. A peak responding power meter may be used instead of a spectrum analyzer. Equipment Used Serial Number Cal Date Due Hewlett Packard 8593E Spectrum 02-Oct- 02-Oct- Analyzer 3543A02032 07 08 Huber&Suhner 09-Apr- 09-Apr- cable 220057 002 07 08 Date Tested by Temperature/humidity 10/22/2007 Mark Kvamme 70/40 Page 14 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Page 15 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Page 16 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 15.247(d) / RSS-210 A8.5 Spurious Emissions In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement, provided the transmitter demonstrates compliance with the peak conducted power limits. Attenuation below the general limits specified in Section 15.209 is not required. Follow the procedure outlined in Annex A of this document. Equipment Used Serial Number Cal Date Due Spectrum Analyzer MY45113415 07-Aug-07 07-Aug-09 Huber&Suhner 40 foot cable 220297 001 09-Apr-07 09-Apr-08 EMCO 3148 Log periodic 9901-1044 24-Oct-06 24-Oct-08 Hewlett Packard 437B Power meter 3125U16900 30-May-06 30-May-08 Hewlett Packard 8481D Power sensor 3318A11513 06-Jun-06 06-Jun-08 EMCO 3115 double ridge wave guide 9508-4550 15-Mar-06 15-Mar-08 The power meter and the power sensor are used to verify the gain of the amplifier at each of the frequencies. Date Tested by 9/14/2007 Mark Kvamme 8/28-29/2007 Frequency range investigated was 9 kHz to 9.3 GHz. Radiated measurements below 30 MHz were performed @ the OATS with a pre-scan done in an anechoic chamber (anechoic data included for reference only). Worst case results are reported below. This approach is used for a cursory check. Amplifier Ant. Cable Corrected Freq. Ant. Level Level Gain Factor Loss Level Temperature Relative MHz Pos. dBm dBuV dB dB dB dBuV/m dbc Fahrenheit Humidity 908 Vertical -20.012 86.988 0 27.8 2.7 117.488 52.97 57.92 915 Vertical -21.148 85.852 0 27.8 2.7 116.352 57.1 49.45 921.8 Vertical -21.699 85.301 0 27.8 2.7 115.801 58.41 47.35 1830 Vertical -24.331 82.669 46.28 28.00 3.84 71.069 -44.732 73.2 88.01 Page 17 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 1830 Horizontal -21.901 85.099 46.28 28.00 3.84 72.099 -43.702 72.5 87.82 6405 Vertical -45.648 61.352 43.49 35.40 7.58 60.352 -55.449 75.73 59.9 6405 Horizontal -45.806 61.194 43.49 35.40 7.58 59.794 -56.007 77.64 55.6 Page 18 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Two shots of the 9 khz to 30 Mhz @ the OATS. Date Tested by 10/06/07 Mark Kvamme serial Last cal Next due Equipment description number date date Hewlett Packard 8591E Spectrum 3229A00239 2-Oct-07 2-Oct-08 Analyzer EMCO loop antenna model 6502 9509-2970 24-Oct-06 24-Oct-08 Agilent E7405 EMC analyzer 9 khz to 26.5 Mhz MY45113415 07-Aug-07 07-Aug-08 The graphs shown demonstrate spurious emissions with the unit powered and unpowered. The observed emissions do not change when the unit is powered. Color screen shots are the 7405 Others are the 8591 Page 19 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 15.205, 15.209 / RSS-210 2.2, 2.6 Restricted Bands & Spurious Emissions Only spurious emissions are permitted in any of the frequency bands listed below. The limits stated in 15.209 shall apply. Spurious emissions outside these bands shall also comply with the 15.209 limits. Measure the field strength of all transmitter spurious emissions in the restricted bands listed below. Follow the procedure outlined in Annex A of this document. MHz MHz MHz GHz 0.090-0.110 16.42-16.423 399.9-410 4.5-5.15 0.495-0.505 1 16.69475-16.69525 608-614 5.35-5.46 2.1735-2.1905 16.80425-16.80475 960-1240 7.25-7.75 4.125-4.128 25.5-25.67 1300-1427 8.025-8.5 4.17725-4.17775 37.5-38.25 1435-1626.5 9.0-9.2 4.20725-4.20775 73-74.6 1645.5-1646.5 9.3-9.5 6.215-6.218 74.8-75.2 1660-1710 10.6-12.7 6.26775-6.26825 108-121.94 1718.8-1722.2 13.25-13.4 6.31175-6.31225 123-138 2200-2300 14.47-14.5 8.291-8.294 149.9-150.05 2310-2390 15.35-16.2 8.362-8.366 156.52475-156.52525 2483.5-2500 17.7-21.4 8.37625-8.38675 156.7-156.9 2655-2900 22.01-23.12 8.41425-8.41475 162.0125-167.17 3260-3267 23.6-24.0 12.29-12.293 167.72-173.2 3332-3339 31.2-31.8 12.51975-12.52025 240-285 3345.8-3358 36.43-36.5 12.57675-12.57725 322-335.4 3600-4400 Above 38.6 13.36-13.41 Serial Equipment Used Number Cal Date Due Spectrum Analyzer MY45113415 7-Aug-07 7-Aug-09 Huber&Suhner 40 foot cable 220297 001 9-Apr-07 9-Apr-08 EMCO 3148 Log periodic 9901-1044 24-Oct-06 24-Oct-08 Hewlett Packard 437B Power meter 3125U16900 30-May-06 30-May-08 Hewlett Packard 8481D Power sensor 3318A11513 6-Jun-06 6-Jun-08 EMCO 3115 double ridge wave guide 9508-4550 15-Mar-06 15-Mar-08 Spectrum Analyzer MY45113415 7-Aug-07 7-Aug-09 Page 20 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Date Tested by 9/14/2007 Mark Kvamme 8/28-29/2007 Frequency range investigated was 9 kHz to 9.3 GHz. Radiated measurements below 30 MHz were performed in a GTEM. A Duty Cycle Correction Factor (20log (dwell time/100mS)) was applied to show compliance to the 15.205 limit. 20log (5.88/100)= -24.61 dB . The maximum allowed correction factor is 20 dB. MHz polarization dBm dbuV dB dB dB dBuV/m dBuV/m dB Date Fahrenheit Humidity 2724 Vertical -31.8 75.2 44.50 29.50 4.74 44.94 54 9.06 9/14/2007 60.6 41.7 2724 Horizontal -28.49 78.51 44.50 29.50 4.74 48.25 54 5.75 9/14/2007 60.6 41.7 2745 Vertical -32.17 74.83 44.48 29.60 4.75 44.70 54 9.30 8/28/2007 72.04 87.32 2745 Horizontal -27.95 79.05 44.48 29.60 4.75 48.92 54 5.08 8/28/2007 70.89 89.18 2765 Vertical -31.8 75.2 44.47 29.50 4.77 45.00 54 9.00 9/14/2007 60.6 41.7 2765 Horizontal -29.43 77.57 44.47 29.50 4.77 47.37 54 6.63 9/14/2007 60.6 41.7 3660 Vertical -43.79 63.21 45.30 32.10 5.54 35.54 54 18.46 8/28/2007 70.09 89.5 3660 Horizontal -40.57 66.44 45.30 32.10 5.54 38.77 54 15.23 8/28/2007 69.15 89.8 4575 Vertical -43.82 63.18 45.33 33.20 6.27 37.32 54 16.68 8/29/2007 66.41 82.18 4575 Horizontal -41.95 65.05 45.33 33.20 6.27 39.19 54 14.81 8/29/2007 68.76 77.76 5490 Vertical -43.86 63.14 44.35 34.60 6.92 40.31 54 13.69 8/29/2007 70.94 72.83 5490 Horizontal -38.84 68.16 44.35 34.60 6.92 45.33 54 8.67 8/29/2007 73.11 66.56 7264 Vertical -48.19 58.81 43.90 36.60 8.44 39.95 54 14.05 9/14/2007 60.6 41.7 7264 Horizontal -40 67 43.90 36.60 8.44 48.14 54 5.86 9/14/2007 60.6 41.7 7320 Vertical -41.32 65.68 43.96 36.60 8.51 46.82 54 7.18 8/29/2007 79.8 51.01 7320 Horizontal -41.71 65.3 43.96 36.60 8.51 46.44 54 7.56 8/29/2007 80.36 48.68 7374 Vertical -49.3 57.7 44.03 36.60 8.57 38.84 54 15.16 9/14/2007 60.6 41.7 7374 Horizontal -45.17 61.83 44.03 36.60 8.57 42.97 54 11.03 9/14/2007 60.6 41.7 Page 21 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 8235 Vertical -49.9 57.1 44.50 38.30 9.11 40.00 54 14.00 8/29/2007 80.18 47.3 8235 Horizontal -50.58 56.42 44.50 38.30 9.11 39.32 54 14.68 8/29/2007 79.08 48.53 9150 Vertical -50 57 44.14 38.60 9.25 40.71 54 13.29 8/29/2007 80.18 47.3 9150 Horizontal -50 57 44.14 38.60 9.25 40.71 54 13.29 8/29/2007 79.08 48.53 Page 22 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 RSS-Gen 7.2.3 Receiver Spurious Emission Limits 7.2.3.2 Radiated Measurement All spurious emissions shall comply with the limits of Table 1. Receiver Spurious Emissions The receiver shall be operated in the normal receive mode near the mid-point of the band over which the receiver is designed to operate. Unless otherwise specified in the applicable RSS, the radiated emission measurement is the standard measurement method (with the device's antenna in place) to measure receiver spurious emissions. Radiated emission measurements are to be performed using a calibrated open-area test site. As an alternative, the conducted measurement method may be used when the antenna is detachable. In such a case, the receiver spurious signal may be measured at the antenna port. If the receiver is super-regenerative, stabilize it by coupling to it an un-modulated carrier on the receiver frequency (antenna conducted measurement) or by transmitting an un-modulated carrier on the receiver frequency from an antenna in the proximity of the receiver (radiated measurement). Taking care not to overload the receiver, vary the amplitude and frequency of the stabilizing signal to obtain the highest level of the spurious emissions from the receiver. For either method, the search for spurious emissions shall be from the lowest frequency internally generated or used in the receiver (e.g. local oscillator, intermediate or carrier frequency), or 30 MHz, whichever is the higher, to at least 3 times the highest tunable or local oscillator frequency, whichever is the higher, without exceeding 40 GHz. Receiver Spurious Emission Standard The following receiver spurious emission limits shall be complied with: (a) If a radiated measurement is made, all spurious emissions shall comply with the limits of Table 1. The resolution bandwidth of the spectrum analyzer shall be 100 kHz for spurious emission measurements below 1.0 GHz, and 1.0 MHz for measurements above 1.0 GHz. Table 1 - Spurious Emission Limits for Receivers Spurious Frequency Field Strength (MHz) (microvolt/m at 3 meters) Equipment Used Serial Number Cal Date Due Spectrum 07-Aug- 07-Aug- 30-88 100 Analyzer MY45113415 07 09 88-216 150 Huber&Suhner 09-Apr- 09-Apr- 40 foot cable 220297 001 07 08 216-960 200 EMCO 3148 24-Oct- 24-Oct- Above 960 500 Log periodic 9901-1044 06 08 Hewlett Packard 437B Power 30-May- 30-May- meter 3125U16900 06 08 Hewlett Packard 8481D Power 06-Jun- 06-Jun- sensor 3318A11513 06 08 EMCO 3148 24-Oct- 24-Oct- Log periodic 9901-1044 06 08 EMCO 3108 24-Oct- 24-Oct- Biconical 9203-2455 06 08 Mini-circuits ZHL-1042J- 02-May- 02-May- SMA D021000-23 07 08 The power meter and the power sensor are used to verify the gain of the amplifier at each of the frequencies. Date Temp/Humidity Tested by Frequency range investigated was 30Mhz to 3 GHz. Emissions from ºF / % the Receiver were below the noise floor. 9/27/07 55 / 48 Mark Kvamme Page 23 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 1.1310 & 2.1091 / RSS-102 Maximum Permissible Exposure (MPE) Determine the maximum power density for the general / uncontrolled population minimum separation distance of 20 cm. (fMHz / 1500 mW/cm2). The power density is calculated as: Pt × G Pd = 4×π × r2 Pd = power density in watts Pt = transmit power in milliwatts G = numeric antenna gain r = distance between body and transmitter in centimeters.] FCC Limit: Max antenna gain = 0.3 dBi = 1.072 numeric Page 24 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Max TX power = 20.6 dBm = 114.8 mW 908 / 1500 = 0 . 61 mW / cm 2 @ 20 cm 114 . 8 × 1 .072 PD = = 0 . 0244 mW / cm 2 @ 20 cm 4 × π × 20 2 Page 25 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 ANNEX A 15.247 (d) Band-edge compliance of RF Conducted Emissions Use the following spectrum analyzer settings: Span = wide enough to capture the peak level of the emission operating on the channel closest to the bandedge, as well as any modulation products which fall outside of the authorized band of operation. RBW ≥ 1% of the span VBW ≥ RBW Sweep = auto Detector function = peak Trace = max hold Allow the trace to stabilize. Set the marker on the emission at the bandedge, or on the highest modulation product outside of the band, if this level is greater than that at the bandedge. Enable the marker-delta function, and then use the marker-to-peak function to move the marker to the peak of the in-band emission. The marker-delta value now displayed must comply with the limit specified in this Section. Submit this plot. Now, using the same instrument settings, enable the hopping function of the EUT. Allow the trace to stabilize. Follow the same procedure listed above to determine if any spurious emissions caused by the hopping function also comply with the specified limit. Submit this plot. Spurious RF Conducted Emissions Use the following spectrum analyzer settings: Span = wide enough to capture the peak level of the in-band emission and all spurious emissions (e.g., harmonics) from the lowest frequency generated in the EUT up through the 10th harmonic. Typically, several plots are required to cover this entire span. RBW = 100 kHz VBW ≥ RBW Sweep = auto Detector function = peak Trace = max hold Allow the trace to stabilize. Set the marker on the peak of any spurious emission recorded. The level displayed must comply with the limit specified in this Section. Submit these plots. Spurious Radiated Emissions This test is required for any spurious emission or modulation product that falls in a Restricted Band, as defined in Section 15.205. It must be performed with the highest gain of each type of antenna proposed for use with the EUT. Use the following spectrum analyzer settings: Span = wide enough to fully capture the emission being measured. RBW = 1 MHz for f ≥ 1 GHz, 100 kHz for f < 1 GHz VBW ≥ RBW Sweep = auto Detector function = peak Trace = max hold Follow the guidelines in ANSI C63.4-2003 with respect to maximizing the emission by rotating the EUT, measuring the emission while the EUT is situated in three orthogonal planes (if appropriate), adjusting the measurement antenna height and polarization, etc. A pre-amp and a high pass filter are required for this test, in order to provide the measuring system with sufficient sensitivity. Allow the trace to stabilize. The peak reading of the emission, after being corrected by the antenna factor, cable loss, pre-amp gain, etc., is the peak field strength, which must comply with the limit specified in Section 15.35(b). Submit this data. Page 26 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 Now set the VBW to 10 Hz, while maintaining all of the other instrument settings. This peak level, once corrected, must comply with the limit specified in Section 15.209. If the dwell time per channel of the hopping signal is less than 100 ms, then the reading obtained with the 10 Hz VBW may be further adjusted by a “duty cycle correction factor”, derived from 20log(dwell time/100 mS), in an effort to demonstrate compliance with the 15.209 limit. Submit this data. If the emission on which a radiated measurement must be made is located at the edge of the authorized band of operation, then the alternative “marker-delta” method, listed at the end of this document, may be employed. ALTERNATIVE TEST PROCEDURES If antenna conducted tests cannot be performed on this device, radiated tests to show compliance with the peak output power limit specified in Section 15.247(b) (2) and the spurious RF conducted emission limit specified in Section 15.247(d) are acceptable. A pre-amp, and, in the latter case, a high pass filter, are required for the following measurements. 1) Calculate the transmitter's peak power using the following equation: 30 PG E= d Where: E is the measured maximum fundamental field strength in V/m, utilizing a RBW ≥ the 20 dB bandwidth of the emission, VBW > RBW, peak detector function. Follow the procedures in C63.4-2003 with respect to maximizing the emission. G is the numeric gain of the transmitting antenna with reference to an isotropic radiator. d is the distance in meters from which the field strength was measured. P is the power in watts for which you are solving: P= ( E ×d) 2 30G 2) To demonstrate compliance with the spurious RF conducted emission requirement of Section 15.247(d), use the following spectrum analyzer settings: Span = wide enough to fully capture the emission being measured. RBW = 100 kHz VBW ≥ RBW Sweep = auto Detector function = peak Trace = max hold Measure the field strength of both the fundamental emission and all spurious emissions with these settings. Follow the procedures in C63.4-2003 with respect to maximizing the emissions. The measured field strength of all spurious emissions must be below the measured field strength of the fundamental emission by the amount specified in Section 15.247(d). Note that if the emission falls in a Restricted Band, as defined in Section 15.205, the procedure for measuring spurious radiated emissions, listed above, must be followed. Field Strength Measurement Procedure This test measures the field strength of radiated emissions using a spectrum analyzer and a receiving antenna in accordance with ANSI C63.4-2003. During the test, the EUT is to be placed on a non-conducting support at 80 cm above the horizontal ground plane of the OATS. The horizontal distance between the antenna and the EUT is to be exactly 3 meters. Levels below 1 GHz are to be measured with the spectrum analyzer resolution bandwidth at 120 kHz and levels at or above 1 GHz are to be measured with the spectrum analyzer resolution bandwidth at 1 MHz. 1) Monitor the frequency range of interest at a fixed antenna height and EUT azimuth. 2) If appropriate, manipulate the system cables to produce the highest amplitude signal relative to the limit. Note the amplitude and frequency of the suspect signal. Page 27 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 3) Rotate the EUT 360° to maximize the suspected highest amplitude signal. If the signal or another at a different frequency is observed to exceed the previously noted highest amplitude signal by 1 dB or more, go back to the azimuth and repeat step 2). Otherwise, orient the EUT azimuth to repeat the highest amplitude observation and proceed. 4) Move the antenna over its fully allowed range of travel to maximize the suspected highest amplitude signal. If the signal or another at a different frequency is observed to exceed the previously noted highest amplitude signal by 1 dB or more, return to step 2) with the antenna fixed at this height. Otherwise, move the antenna to the height that repeats the highest amplitude observation and proceed. 5) Change the polarity of the antenna and repeat step 2), step 3), and step 4). Compare the resulting suspected highest amplitude signal with that found for the other polarity. Select and note the higher of the two signals. 6) The transmitter shall be replaced by a substitution antenna. The substitution antenna shall be orientated for vertical polarization and the length of the substitution antenna shall be adjusted to correspond to the frequency of the transmitter. The substitution antenna shall be connected to a calibrated signal generator. If necessary, the input attenuator setting of the measuring receiver shall be adjusted in order to increase the sensitivity of the measuring receiver. 7) The test antenna shall be raised and lowered through the specified range of height to ensure that the maximum signal is received. 8) The input signal to the substitution antenna shall be adjusted to the level that produces a level detected by the measuring receiver, that is equal to the level noted while the transmitter radiated power was measured, corrected for the change of input attenuator setting of the measuring receiver. 9) The input level to the substitution antenna shall be recorded as power level, corrected for any change of input attenuator setting of the measuring receiver. 10) The measurement shall be repeated with the test antenna and the substitution antenna orientated for horizontal polarization. 11) The measure of the effective radiated power is the larger of the two levels recorded at the input to the substitution antenna, corrected for gain of the substitution antenna if necessary. This signal is termed the highest observed signal with respect to the limit for this EUT operational mode. EUT 3 M. Mast Styrofoam Block 80 cm Roberts Dipole, Bi - conical, and Log Periodic antennae below 1 GHz. Double Ridged Guide antenna above 1 GHz. Power Supply Spectrum [1] Analyzer Marker-Delta Method [1] [1] Indicates a change in connection, not an actual Signal switch. 10 dB 40 dB Generator In making radiated band-edge measurements, there can be a problem obtaining meaningful data since a Coax measurement instrument that is tuned Power to a band-edge frequency may Reference Level Set also capture some in-band signals when using the resolution bandwidth (RBW) required by measurement procedure ANSI C63.4-1992 (hereafter Meter C63.4). In an effort to compensate for this problem, we have developed the following technique for determining band-edge compliance. STEP 1) Perform an in-band field strength measurement of the fundamental emission using the RBW and detector function required by C63.4 and our Rules for the frequency being measured. For example, for a device operating in the 902-928 MHz band under Section 15.249, use a 120 kHz RBW with a CISPR QP detector (a Page 28 11/2/2007

FCC & IC Test Report for 15.247 & RSS-210 Frequency Hopping Devices FCC-0200-001 peak detector with 100 kHz RBW may alternatively be used). For transmitters operating above 1 GHz, use a 1 MHz RBW, a 1 MHz VBW, and a peak detector (as required by Section 15.35). Repeat the measurement with an average detector (i.e., 1 MHz RBW with 10 Hz VBW). Note: For pulsed emissions, other factors must be included. Please contact the FCC Lab for details if the emission under investigation is pulsed. Also, please note that radiated measurements of the fundamental emission of a transmitter operating under 15.247 are not normally required, but they are necessary in connection with this procedure. STEP 2) Choose a spectrum analyzer span that encompasses both the peak of the fundamental emission and the band-edge emission under investigation. Set the analyzer RBW to 1% of the total span (but never less than 30 kHz) with a video bandwidth equal to or greater than the RBW. Record the peak levels of the fundamental emission and the relevant band-edge emission (i.e., run several sweeps in peak hold mode). Observe the stored trace and measure the amplitude delta between the peak of the fundamental and the peak of the band-edge emission. This is not a field strength measurement; it is only a relative measurement to determine the amount by which the emission drops at the band-edge relative to the highest fundamental emission level. STEP 3) Subtract the delta measured in step (2) from the field strengths measured in step (1). The resultant field strengths (CISPR QP, average, or peak, as appropriate) are then used to determine band-edge compliance as required by Section 15.205. STEP 4) The above "delta" measurement technique may be used for measuring emissions that are up to two "standard" bandwidths away from the band-edge, where a "standard" bandwidth is the bandwidth specified by C63.4 for the frequency being measured. For example, for band-edge measurements in the restricted band that begins at 2483.5 MHz, C63.4 specifies a measurement bandwidth of at least 1 MHz. Therefore you may use the "delta" technique for measuring emissions up to 2 MHz removed from the band-edge. Radiated emissions that are removed by more than two “standard” bandwidths must be measured in the conventional manner. Page 29 11/2/2007


Document Created: 2007-11-02 00:16:31
Document Modified: 2007-11-02 00:16:31
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