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FCC ID: MCIPUNIIT

Users Manual

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RadioLAN Class 2 Permissive Change page 9 of 11 FCC ID: MCIPUNIIT 5725 — 5825 MHz UNII Transmitter Emissions Test Report Applicant: RadioLAN 455 DeGuigne Drive Sunnyvale, CA 94089 Product Description: 5725—5825 MHz. UNII transceiver FCCID: MCIPUNHT FCC Rule Paragraphs 15.405, 15.205, 15.209, 15.107 TEST LOCATION Radiated emissions were performed on the roof of RadioLAN‘s main building. The 15 dBi transmit antenna was placed on a tripod approximately 1.5 meters high. Antenna to antenna distance was as little as 1 ft so that low level signals up to 40 GHz could be detected above measurement system noise floor. laptop 10‘ low loss cable (approx. 3 dB @ 6 Glz Radiated Test Set—up TRANSMITTER TEST PROCEDURES Radiated Emissions and RF Radiation Exposure The EUT was connected to the RadioLAN PCMCIA interface card installed in a laptop computer. The laptop was programmed to send a constant stream of data to the EUT. The search antenna was raised and lowered in both horizontal and vertical polarities thin order to maximize received levels at each emission. tel: 650—726—1263 fax: 650—726—1252 internet: trephonc@macconnect.com

RadioLAN Class 2 Permissive Change page 10 of11 FCC ID: MCIPUNIT TEST EQUIPMENT Description Manufacturer Model Spectrum analyzer HP 8564E Horn Antenna, 1—18 GHz AH Systems $AS—200/571 Lowloss cable, 2 ft WL Gore 52214 Harmonic Mixer, 18—26.5 GHZ HP 11970K Harmonic Mixer, 26.5—40 GHZ HP 11970A Levelling Pre—amplifier for Mixers HP 11975A TEST RESULTS 15.205, 15.209 Emissions are belowlimits for transmitter harmonics and out of band emissions. Refer to attached Radiated Emissions Spreadshect. CLASS 2 PERMISSIVE CHANGE: RADIATED EMISSIONS Company: RadioLan Date: 12—Mar—98 RadioLAN/ PCMCIA Product with 15 dBi antenna ECC ID: MCIPUNIIT Tested At: RadioLAN Tested To: 15.205, 15.209 455 DeGuigne Drive Sunnyvale, CA 94089 Tested By: T.N. Cokenias Test Distance: 1 ft F(MHz) Level, dBuV AF, dB Dist, dB Amp, dB Cable loss Duty Cycle E, dBuV/m Limit, dBuV 11599Pk(V) 34 40.8 20 0 0 568 74 11599Av(V) 34 40.8 20 0 —23.2 33.6 54 17397Pk(V) 33 45.7 —20 0 24 0 61.1 74 17397Av(V) 33 45.7 20 0 24 ~23.2 37.9 54 2323 1PK(V) 34 45.3 ~20 0 3 0 62.3 74 23231Av(V) 34 45.3 20 0 3 —23.2 39.1 54 29002PK(NF)* 21 46.6 20 0 36 0 51.2 74 29002Av(NF)* 21 46.6 20 0 3.6 —23.2 28 54 to 40 GHz no emissions detected within 20 dB of limit Notes: Meas. Dist, Ft. Dist, dB NF: Noise floor AF: Antenna Factor Dist: Distance Corr. 1 ft 20 * = RES BW of 10 KHz tel: 650—726—1263 fax: 650—726—1252 internet: trephonc@macconnect.com

RadioLAN Class 2 Permissive Change page 11 of 11 FCC D; MCIPUNHIT 15.407(f) Radio Frequency Exposure Requirements From Table 2B: Maximum Permissible Exposure, Uncontrolled Environment: 1 mW/cm2 E2/377= W/im2, E2/3770 = mW/m2 = 1 mW/m2 E=61.4 V/m Again using the relationship between field strength E, power in watts P, numeric gain over isotropic G, distance in meters d and solving for d, G= 15 dBi =31.6 d =((0.05Wpk*30*31.6)140.5)/61.4 d = 11.2 cm, assuming peak power output is constant, which it never is. The pulse position modulation system results in an average power of 3.46 mW. This is obtained in the following fashion: Pulse duty cycle 0.121 * packet duty cycle 0.572*50 mW = 3.46 mW. If this power level is put into the equation, d = 2.9 cm A statement shall be placed in the user manual with the following wording: NOTICE While operating this radio with the 15 dBi directional antenna, the radio frequency exposure limits may be exceeded at distances closer than 11.2 em from the antenna of this device. CcOoNCLUSION The RadioLAN low power UNII transceiver, FCC ID: MCIPUNIIT, continues to meetall emissions requirements in Part 15 when used with the 15 dBi antenna. Y Ad T.N. Cokenias 31 March 1998 tel: 650—726—1263 fax: 650—726—1252 internet: trephonc@macconnect.com


Document Created: 2001-07-16 14:30:11
Document Modified: 2001-07-16 14:30:11
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