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FCC ID: M45460219

Test Report

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FCCID_42690

FCC ID: M45460219 4« \oexome. ome! FIGURE 1 OCCUPIED BANDWIDTH REF LEveL FREGUENCY FREG SPAN/DIV —30.0dBm 27 . 1 45MHz 10kHz / E0S TE —so| 75 ~20| £ 25::: +A :::E; 0dB AL AF ATTENUATION IN dB BELOW MEAN OUTPUT POWER Required On any frequency more than 50% up to and including 100% of the 25 authorized bandwidth, 8 kHz (4—8 kHz2) On any frequency more than 100%, up to and including 250% of the 35 authorized bandwidth (8—20 kHz) On any frequency removed from the assigned frequency by more 43+10LogP than 250% of the authorized bandwidth (over 20 kHz) OCCUPIED BANDWIDTH PCC ID: M45460219 FIGURE 1

FCC ID: M45460219 FIGURE 2 MODULATING WAVEFORM TIME DOMAIN REF LEVEL FREQUENCY TIME/DIV —30.00Bm 27 . 141MHz 2ms td T m C 49 —— 75 i w# " m f r. a IF 6 L% t a ce Haca l j dog a e Polglg i 5OOP a p uce popaga acggs ha s +G@) 100B/ 0d 100kHz VERTICAL RF RESOLUTION 2 millisecond/division sweep OCCUPIED BANDWIDTH (Modulating Waveform) FCC ID: M45460219 FIGURE 2

FCC ID: M45460219 D. SPURIOUS EMISSIONS AT THE ANTENNA TERMINALS (Paragraph 2.991 of the Rules) Since the Flight Command 460219 transmitter meets FCC Rules 95.645, there are no provisions for antenna terminal output measurements. Substitution of a suitable matching network and retuning to permit observations at 50 ohms would not be representative of normal operation. Accordingly data on radiated spurious emissions are included in lieu of antenna terminal conducted spurious emissions. E. FIELD STRENGTH MEASUREMENTS OF SPURIOUS RADIATION (Paragraph 2.993(a) (b) (2) of the Rules) Field intensity measurements of radiated spurious emissions from the Flight Command 460219 were made with a Tektronix 494P spectrum analyzer using EMCO 31210 calibrated test antennas. The transmitter and its integral vertical antenna were located in an open field 3 meters from the test antenna. Supply voltage was from a fresh battery with a terminal voltage under load of 9 Vdc. The transmitter and test antennas were arranged to maximize pickup. Both vertical and horizontal test antenna polarization were employed. Reference was measured emission at the carrier frequency, 27.145 MHz, expressed in uV/m @ 3m. The measurement system was capable of detecting signals 100 dB or more below the reference level. Measurements were made from the lowest frequency generated within the unit, 8 MHz, to 10 times operating frequency. Data after application of antenna factors and line loss corrections are shown in Table 1.

FCC ID: M45460219 TABLE 1 RADIATED FIELD INTENSITY Measured at 3 meters 27.145 MHz; 9.0 Vdc; 80uW Frequency Frequency To Which of Meter Antenna Fiela Tuned Emission Reading Factor Intensity —__(MHz)_ (MHz). _(dBm)_ _(@Bl__ uV/m @3n aBe* 27.145 27.146 —24.0 —O0.3 14621 Ref 27 .145 54 .292 —72.8 5.8 100 43V 27.145 81.437 =75.6 9.4 10 42V 27.145 108 .582 ~86.4 12.0 43 Ss1V 27.145 135.728 —83.2 14.0 62 47V 27 .145 162.874 —89.2 15.7 47 5sov 27 .145 190.018 —~80 .4 17.1 153 40Vv 27.145 217.162 —89.6 18.3 61 48V 27.145 244.308 —93 .2 19.4 46 50H 27 .145 271.452 —85.6 20 .4 123 42V Frequency range of 25 to 272 MHz was scanned. No signals ex— ceeded 200 uV/m @ 3m and all signals 20 uV/m or more @ 3m are shown above. 1 worst—case polarization: H = horizontal, V = vertical RADIATED FIELD INTENSITY FCC ID: M45460219 TABLE 1

FCC ID: M45460219 F. FREQUENCY STABILITY (Paragraph 2.995(a) and 95.623(c) of the Rules) Measurement of frequency stability versus temperature was made at temperatures from —30°C to +50°C. At each temperature, the unit was exposed to test chamber ambient a minimum of 60 nmi— nutes after indicated chamber temperature ambient had stabilized to within £+2° of the desired test temperature. Following the 1 hour soak at each temperature, the unit was turned on, keyed and frequency measured within 2 minutes. Test temperature was se— quenced in the order shown in Table 2, starting with —30°c. A Thermotron S1.2 temperature chamber was used. Temperature was monitored with a Keithley 177 DVM and Fluke 150—30 temper— ature probe. The transmitter output stage was terminated in a dummy load. Primary supply was 9.0 volts. Frequency was meas— ured with a HP 5385A digital frequency counter connected to the transmitter through a power attenuator. Measurements were made at 27.145 MHz. No transient keying effects were observed. TABLE 2 FREQUENCY STABILITY vs. TEMPERATURE 27.145 MHz; 9.0 vac Temperature,°C outputFrequency,MHz —29.2 27.144704 —20.0 27.144978 — 9.8 27.145170 0 .2 27.145295 9.7 27.145393 19.9 27.145486 30 .4 27.145562 40 . 4 27.145643 50.1 27.145763 Maximum frequency error: 27.145763 27,145000 + .000763 MHz Rule 95.623(c) specifies 0.005% or a maximum of +0.001357 MHz, which corresponds to: High Limit 27.146357 MHz Low Limit 27.143643 MHz

FCC ID: M45460219 G. FREQUENCY STABILITY AS A FUNCTION OF SUPPLY VOLTAGE (Paragraph 2.995(d)(2) of the Rules) Oscillator frequency as a function of power supply voltage was measured with an HP 5385A digital frequency counter as supply voltage provided by an HP 6264B variable do power supply was varied +15% from the nominal 9.0 volt rating. A Keithley 197 digital voltmeter was used to measure supply voltage at transmitter primary input terminals. Measurements were made at 20°C ambient. TABLE 3 FREQUENCY STABILITY vs. SUPPLY VOLTAGE 27.145 MHz; 9.0 vade Voltage Frequency, 10.35 27.145711 9.90 27.145662 9.45 27.145574 9.00 27.145486 8.55 27.145406 8.10 27.145330 7.65* 27.145270 Maximum frequency error: 27.145711 27.145000 + .000711 MHz * Manufacturer‘s battery end point is 7.65V. FCC Rule 95.623(c) specifies 0.005% or a maximum of +0.001357 MHz, corresponding to: High Limit 27.146357 MHz Low Limit 27.143643 MHz


Document Created: 2001-06-17 14:50:40
Document Modified: 2001-06-17 14:50:40
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