BBG55001Communicaitons Receiver

Due to size constraint the following information will be included in the final version of the user instructions: 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Top View, mounted on toy Receiver top detail Receiver on toy, left view Receiver on toy, right view

Circuit card, top Circuit card, bottom

ENGINEERING STATEMENT In Regard to Measurements on ARISTO-CRAFT MODEL: CREST CRE-55001 FCC ID: BBG55001 A. INTRODUCTION Hyak Laboratories, Inc. has been authorized by Aristo- Craft to determine compliance with FCC rules, Part 15, Subpart B. The device operates in the 75 MHz band and is intended for use as a communications receiver. B. DESCRIPTION OF DEVICE The device incorporates a super-heterodyne design. The following information is supplied as requested in FCC Bulletin OCE 24: 1. Service in which the device will be used: Part 15. (95) 2. Function of device: R/C Receiver 3. Tuning range: 75.41 – 75.99 MHz. 4. IF used: 455 kHz. 5. Fundamental frequency of principal oscillators in the device. First local oscillator: (F o -0.455) MHz (PLL). C. DESCRIPTION OF MEASUREMENT FACILITIES A description of the Hyak Laboratories' radiation test facility is a matter of record with the FCC. The facility was accepted for radiation measurements from 30 to 1000 MHz on October 1, 1976, and is currently listed as an accepted site. D. DESCRIPTION OF MEASUREMENT PROCEDURE: RADIATED EMISSIONS Measurements of radiated field strength were made using ANSI C63.4 (1992) as the basic procedure. Measurements were made with 3-meter spacing between the device under test and the test equipment antenna. The antenna(s) connected to the device under test consisted of the integral short antenna supplied with the receiver. The device under test was placed on a rotatable table 80 cm in height. Measurement of field strength was made through use of Tektronix 494P spectrum analyzer in conjunction with Singer DM- 105A series or EMCO 3221 calibrated dipoles or EMCO 3115 DRG horn. For each spurious emission identified between 30 to 2000 MHz (per Para 15.33(b)(1)), the test sample was rotated for maximum pickup, the test antenna varied in elevation, and the test antenna polarization shifted between horizontal to vertical in order to maximize observed signals. E. REPORT OF RADIATED EMISSIONS 1. Table 1 lists the frequency and amplitude of all signals observed from 30 to 2000 MHz. All other emissions were more than 20 dB below the limits of paragraph 15.109 of the FCC Rules. 2 TABLE 1 RADIATED SPURIOUS EMISSIONS Measured at 3 meters PART 15(B) PARA. 15.109 Frequency Frequency To Which of Meter Antenna Field 1 Tuned Emission Reading Factor Intensity FCC Limit dB to (MHz) (MHz) (dBm) (dB) uV/m @ 3m uV/m @ 3m Limit 75.41 74.96 -96.5 8.8 9.2 100 -21 Note 1: uV/m = Log -1dBu/m 20 dBu = dBm + antenna factor + 107 All other emissions were more than 20 dB below FCC limit. RADIATED SPURIOUS EMISSIONS FCC ID: BBG55001 TABLE 1 3 F. PROCEDURE - AC LINE CONDUCTED SPURIOUS The CRE-55001 receiver operates from model train control power supplies; there is no connection to ac power lines. G. STATEMENT Technical test data are from tests performed by me or under my supervision. My qualifications are a matter of record with the Federal Communications Commission. I personally attest to the accuracy of the test data submitted as a part of this engineering statement. __________________________________ Rowland S. Johnson Dated: July 6, 2001 4