PSTDF1000TDepth Sounder

ML100R ML100DR ML100TDR ML100TR 1629 Prime Court, Suite 800 Orlando, FL32809 PH: (407) 581-2614 Fax: (407) 422-0501 Toll Free: 888-NorCross Email: [email protected] 2001 NorCross Marine Products, Inc., All rights reserved. All Specifications are subject to change without notice. MANML100-05-01 2. Clean and dry both the selected area and the face of the transducer with a weak solvent to remove any dust, grease or oil. 3. If the hull temperature is above 15ºC (60ºF), mix the epoxy until the color is uniform. Do not proceed if the hull temperature is below 15ºC (60ºF) because the cure time will be greatly extended. 4. Apply a generous amount of epoxy to the center of the face of the transducer (side opposite from the cable). 5. Press the transducer face onto the hull with a twisting motion to expel all air bubbles. (If the hull is slanted, tem- porarily secure the transducer in place with duct tape.) The adhesive is cured in 24 hours at 21ºC (70ºF). The lower the temperature the longer the cure time. 6. After the adhesive has cured, route the cable to the transmitter being careful not to tear the cable jacket when passing it through the bulkhead and other parts of the boat. To reduce electrical interference, separate the transducer cable from other electrical wiring and sources of interference. To prevent damage, cut the transducer cable to the desired length. NOTE!!!! The working time of the epoxy is only 5 minutes. 36 FIGURE10C If the hull surface is not smooth, grind it with a disc sander. Partially fill a thin plastic bag with water, place the transducer inside and close it tightly with a tie wrap. Wet the surface of the hull and press the transducer face against it through the bag (Figure 20 C). Selecting the Adhesive Hard adhesives, transmit sound best, but winter tempera- ture extremes and flexing on trailer rollers can cause it to delaminate. However, soft adhesives absorb sound. To compromise, use a viscous slow-cure epoxy or a fairly rigid, one part adhesive sealant. In cold climates, a one- part polyurethane adhesive, such as Boat-Life’s Life Seal‚ may be best. Do not use “5 minute” epoxies because they are generally brittle. RTV (silicone) adhesives are not rec- ommended because most of the sound energy is lost. Installation 1. All surfaces to be bonded must be smooth, clean and dry. If the surface is rough, use a disk sander to smooth an area a little larger in diameter than the length of the transducer. CAUTION!!!! Always wear safety goggles and a dust mask when sanding. 35 TABLEOFCONTENTS Transducer Selection . . . . . . . . . . . . . . . . . . . . . . . . . . Transducer Installation . . . . . . . . . . . . . . . . . . . . . . . . Setting up the Transmitter and Receiver . . . . . . . . . . . Transmitter Installation (ML100T) . . . . . . . . . . . . . . . . Installing the In-Dash Wireless Display (ML100DR) . . . Installing the Portable Wireless Display (ML100R) . . . Operating the Transmitter (ML100T) . . . . . . . . . . . . . . Operating the Wireless Displays (ML100R, ML100DR) Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . In-Hull Transducer Installation (Appendix A) . . . . . . . . 4 5 5 7 10 13 14 15 20 22 23 24 28 ML100DRIn-Dash Wireless Display **Included within the ML100TDR System. Additional displays can be added at any time by following the setup instructions on page 5. ML100RPortable Wireless Display **Included within the ML100TR System. Additional Display can be added at any time by following the setup instructions on page 5. ML100TWireless Depth Sounder Transmitter **Included within the ML100TR and ML100DTR Systems. Both the ML100R and ML100DR wireless displays require the transmitter to function as a depth sounder display. Model Identification 2 FIGURE10A •This method is practical if the transducer will be located near the stern and the boat has a low deadrise angle. Clean away any large build-up of grease and / or dirt. Place the transducer against the hull and allow bilge water to cover the surface where they touch (see Figure 20 A). FIGURE10B • If the hull surface is not smooth, grind it with a disc sander. Coat the face of the transducer with petroleum jelly and press it against the hull with a twisting motion (see Figure 20 B). CAUTION!!!! Always wear safety goggles and a dust mask when sanding. Figure 20 A B C 343 Warning: Changes or modifications to this unit not expressly approved by the party responsible for com- pliance could void the user’s authority to operate the equipment. 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. Testing the Depth Sounder Establish a performance baseline by operating the depth sounder with the transducer directly in the water.The results of this test are used as a basis of comparison to determine the best in-hull location for the transducer. 1. Anchor the boat in at least 15 m (50') of water. (If you have a digital unit, conduct this test in water as deep as that for which the depth sounder is rated.) 2. Tape the transducer to a pole, cable side up, and hold it over the side of the boat (Figure 19). The cable side must be parallel to the surface of the water. 3. Observe the depth sounder performance. Record the depth reading. Testing at the Selected Location While the boat is anchored, use one of the methods below to test the depth sounder with the transducer at the selected location. If the test readings differ markedly from the base- line or there is almost no reading, you will need to find anoth- er location. If the two readings are re…

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Front View Back View Top View Bottom View Right Side View Left Side View

Circuit Board – Component Side

OPERATIONAL DESCRIPTION DF20 is a wireless depth sounder which sends depth reading to remote readers, either DF2D or DF2R. The micro-controller sounds ultrasonic pulses to the transducer connected to DF20, measures the time elapsed for the echoes and computes the depth. Depth readings are sent via radio link to remote units (DF2D or DF2R) to display the readings. Depth data is a low speed serial bursts of 22 kHz digital signal which FM modulates the 900 MHz RF carrier. There are two frequency channels to be selected. The heart of the transmitter is a RF2512 transmitter IC by RF Micro Devices. Build inside the RF2512 is a PLL, the division ratio of which can be external selected. In this application, a division ratio of 64 has been selected. The transmitter frequency is determined by the frequency of the crystal selected. That is transmitter frequency is determined by 64 x crystal frequency. There are two crystals which can be selected by the micro- controller. The “Chan Select” line selects which crystal. X2 is selected when “Chan Select” is high. The trimmer capacitors are used to trim the crystal to a desired 900 MHz frequency. FM modulation is done by directly modulates the VCO (formed by L1-3, D1 and C6) via pin 16. R1 and R2 determine the frequency deviation. Transmitter power is adjustable. The control pin is at pin 7, R5 and R6 set the output power. RF out is at pin 8. C19, C20 and L4 form a pi filter which filters out the higher order of harmonics. The antenna is an internally mounted printed circuit whip. Inductor L5 is used to compensate for the antenna’s high capacitive reactance.

ENGINEERING STATEMENT In Connection With NorCross Marine Products, Inc. Model No. DF20 FCC ID: PSTDF1000T Hyak Laboratories, Inc. has been retained to perform radi- Ated and conducted spurious measurements on the DF20 wireless depth sounder in accordance with Section 15.249 of FCC rules. I am an Electronics Engineer, a principal in the firm of Hyak Laboratories, Inc., Springfield, Virginia. My education and experience are a matter of record with the Federal Communications Commission, having submitted numerous applica- tions for equipment authorization. All tests were made by me or under my supervision in accordance with the rules and regulations of the Federal Communications Commission. ______________________________ Rowland S. Johnson Dated: July 20, 2001 INTRODUCTION Procedures of ANSI 63.4 (1992) were used. The DF20 is a frequency modulation, 900 MHz band system operating between 903 – 927 MHz. DF20 is a wireless depth sounder which sends depth reading to remote readers, either DF2D or DF2R. The micro-controller sounds ultrasonic pulses to the transducer connected to DF20, measures the time elapsed for the echoes and computes the depth. Depth readings are sent via radio link to remote units (DF2D or DF2R) to display the readings. Depth data is a low speed serial bursts of 22 kHz digital signal which FM modulates the 900 MHz RF carrier. There are two frequency channels to be selected. The heart of the transmitter is a RF2512 transmitter IC by RF Micro Devices. Built inside the RF2512 is a PLL, the division ratio of which can be externally selected. In this application, a division ratio of 64 has been selected. The transmitter frequency is determined by the frequency of the crystal selected. That is transmitter frequency is determined by 64 x crystal frequency. There are two crystals which can be selected by the micro- controller. The “Chan Select” line selects which crystal. X2 is selected when “Chan Select” is high. The trimmer capacitors are used to trim the crystal to a desired 900 MHz frequency. FM modulation is done by directly modulating the VCO (formed by L1-3, D1 and C6) via pin 16. R1 and R2 determine the frequency deviation. Transmitter power is adjustable. The control pin is at pin 7. R5 and R6 set the output power. RF out is at pin 8. C19, C20 and L4 form a pi filter which filters out the higher order of harmonics. The antenna is an internally mounted printed circuit whip. Inductor L5 is used to compensate for the antenna’s high capacitive reactance. 2 COMPLIANCE_WITH_SECTION_15.249_OF_PART_15 15.249(a,b) The field strength of the radiation emission was measured and found to comply with the limits established by 15.249(a) and 15.209. (See data of Tables 1a, 1b and 1c.) 15.249(c) Emissions radiated outside of the specified frequency bands, except for harmonics, were attenuated by at least 50 dB below the level of the fundamental or to the general radiated emission limits in 15.209, (whichever is the lesser attenuation). See Figures 1a, 1b and 1c. Operating channels are limited to the 903 - 927 MHz band in order to provide 1 MHz band-edge compliance with any close-in spectra less than 50 dB below carrier. For typical modulating waveform see Figure 1d. 15.207(a) No AC power line conducted measurements are required; the device operates only from a vessel’s dc supply. DATA Tables and Figures referenced above follow immediately after this page. Description of measurement procedures and test equipment used in the measurements follow the data pages. 3 TABLE 1a RADIATED SPURIOUS EMISSIONS Measured at 3 meters PART 15(B) PARA. 15.249 Frequency of Meter Antenna Field 1 Emission Reading Factor Intensity FCC Limit dB to (MHz) (dBm) (dB) uV/m @ 3m uV/m @ 3m Limit 903.69 -47.2 32.1 39355.0 50000 -2.1V 1807.38 -88.0 27.3 206.5 500 -7.7V 2711.07 -86.0 30.1 358.9 500 -2.9V 3614.76 -86.9 32.6 431.5 500 -1.3V 4518.45 -88.8* 32.8 354.8 500 -3.0V 5422.14 -92.8* 34.9 285.1 500 -4.9V 6325.83 -90.0* 35.6 426.6 500 -1.4H 7229.52 -92.2* 36.9 384.6 500 -2.3V 8133.21 -93.3* 38.2 393.6 500 -2.1V 9036.90 -95.2* 38.5 327.3 500 -3.7V Note 1: uV/m = Log -dBu/m 20 dBu = dBm + antenna factor + 107 *Measured at 1 meter, extrapolated to 3 meters. RBW 100 kHz to 1 GHz; 1 MHz > 1 GHz. Reduced if CW signal. H,V: Worst-case test antenna polarization. RADIATED SPURIOUS EMISSIONS FCC ID: PSTDF1000T TABLE 1a 4 TABLE 1b RADIATED SPURIOUS EMISSIONS Measured at 3 meters PART 15(B) PARA. 15.249 Frequency of Meter Antenna Field 1 Emission Reading Factor Intensity FCC Limit dB to (MHz) (dBm) (dB) uV/m @ 3m uV/m @ 3m Limit 912.91 -47.7 32.3 38018.9 50000 -2.4V 1825.82 -86.9 27.4 237.1 500 -6.5V 2738.73 -88.1 30.2 285.1 500 -4.9V 3651.64 -87.2 32.7 421.7 500 -1.5V 4564.55 -88.9* 32.9 354.8 500 -3.0V 5477.46 -91.3* 35.0 342.8 500 -3.3V 6390.37 -90.1* 35.6 421.7 500 -1.5V 7303.28 -91.4* 37.2 436.5 500 -1.2V 8216.19 -93.1* 38.2 402.7 500 -1.9V 9129.10 -94.6* 38.5 350.8 500 -3.1V Note 1: uV/m = Log -1dBu/m 20 dBu = dBm + antenna factor + 107 *Measured at 1 meter, extrapolated to 3 meters. RBW 100 kHz to 1 GHz; 1 MHz > 1 GHz. Reduced if CW signal. H,V: Worst-case test antenna polarization. RADIATED SPURIOUS EMISSIONS FCC ID: PSTDF1000T TABLE 1b 5 TABLE 1c RADIATED SPURIOUS EMISSIONS Measured at 3 meters PART 15(B) PARA. 15.249 Frequency of Meter Antenna Field 1 Emission Reading Factor Intensity FCC Limit dB to (MHz) (dBm) (dB) uV/m @ 3m uV/m @ 3m Limit 926.04 -47.9 32.4 37583.7 50000 -2.5V 1852.08 -83.2 27.5 367.3 500 -2.7V 2778.12 -88.4 30.2 275.4 500 -5.2V 3704.16 -89.2 32.8 338.8 500 -3.4V 4630.20 -90.1* 33.2 319.9 500 -3.9V 5556.24 -90.3* 35.0 384.6 500 -2.3V 6482.28 -90.2* 35.8 426.6 500 -1.4H 7408.32 -93.2* 37.4 363.1 500 -2.8V 8334.36 -93.5* 38.1 380.2 500 -2.4V 9260.40 -93.4* 38.5 402.7 500 -1.9V Note 1: uV/m = Log -1dBu/m 20 dBu = dBm + antenna factor + 107 *Measured at 1 meter, extrapolated to 3 meters. RBW 100 kHz to 1 GHz; 1 MHz > 1 GHz. Reduced if CW signal. H,V: Worst-case test antenna polarization. RADIATED SPURIOUS…

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