HZB-S58-04Spread Spectrum Radio

INSTALLATION AND MAINTENANCE MANUAL 1xE1, 2xE1 AND 4xE1 (2.048 Mbps) SPREAD SPRECTRUM RADIOS (2.4 AND 5.8 GHz) INSTALLATION AND MAINTENANCE MANUAL LYNX.sc E1 FAMILY SPREAD SPECTRUM RADIOS NOVEMBER 1999 i Installation and Maintenance Manual Copyright © 1998 by Western Multiplex Corporation. All rights reserved. No part of this manual may be reproduced without prior written permission from Western Multiplex Corp. The information contained in this manual is subject to change without notice. Western Multiplex shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this manual or equipment supplied with this manual. Western Multiplex makes no warranty of any kind with regard to this manual or any equipment supplied with this manual, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Heliax is a registered product of Andrews Corporation. Fireberd is a registered product of Telecommunications Techniques Corporation. Printed in the United States of America Notice: Y2K (Year 2000 Issue) All software supplied by and for Western Multiplex products adheres to the four-(4) digit year nomenclature as required for Year 2000 compliance. Western Multiplex Corporation 1196 Borregas Avenue Sunnyvale, California USA Tel:+1 408 542-5200 Fax::+1 408 542-5300 Our facility has been Registered to the International Organization for Standardization ISO 9000 Series Standards for quality. Issue:November 1999 INSTALLATION AND MAINTENANCE MANUAL LYNX.sc E1 FAMILY SPREAD SPECTRUM RADIOS NOVEMBER 1999 ii This page intentionally left blank INSTALLATION AND MAINTENANCE MANUAL LYNX.sc E1 FAMILY SPREAD SPECTRUM RADIOS NOVEMBER 1999 iii Regulatory Notice This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: *Reorient or relocate the receiving antenna. *Increase the separation between the equipment and receiver. *Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. *Consult the dealer or an experienced radio/TV technician for help. Shielded cables and I/O cords must be used for this equipment to comply with the relevant FCC regulations. Changes or modifications not expressly approved in writing by Western Multiplex may void the user's authority to operate this equipment. This device complies with RSS-210 and/or RSS-139 of Industry Canada. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. This device must be professionally installed. INSTALLATION AND MAINTENANCE MANUAL LYNX.sc E1 FAMILY SPREAD SPECTRUM RADIOS NOVEMBER 1999 iv This page intentionally left blank INSTALLATION AND MAINTENANCE MANUAL LYNX.sc E1 FAMILY SPREAD SPECTRUM RADIOS NOVEMBER 1999 vW/CS97-1 GENERAL TERMS 1.1 All Definitions contained in Western Multiplex's Conditions of Sale (Western Multiplex document number CS96-8), apply to the Warranty. 1.2 Subject to the provisions of the Warranty, Western Multiplex warrants that the equipment described in Paragraph 1.3 shall conform to their specifications described in Paragraph 1.4 in all material respects and that the equipment shall be free from material defects in materials and workmanship. 1.3 This Warranty applies to all original purchases of Western Multiplex manufactured equipment and accessories (collectively the "Equipment"). 1.4 This Warranty applies to the specifications contained in the most recent version of the manual for the model of the Equipment purchased (the "Specifications"). 1.5 This Warranty does not apply to the following items of Equipment which are covered by the Original Equipment Manufacturer's warranty: (a) antenna systems, including coax cable, waveguide, connectors flex-sections, mounts, other parts of the antenna system and installation materials; (b) non-Western Multiplex manufactured rack mounted equipment that is assembled wired and tested at Western Multiplex's factory or supplied as part of a system, including orderwire items, channel banks, multiplexers, fuse/alarm panels, remote alarm items; and (c) equipment which is not listed in Western Multiplex's price book. 1.6 The effective period of this Warranty shall start on the date of shipment of the Equipment and shall end: (a) for all spread spectrum unlicensed radio products and for all licensed digital microwave radio products, two (2) years later; (b) for all analog microwave radio products, three (3) years later; or (c) for all baseband products, five (5) years later (in each case the "Warranty Period"). 1.7 The Customer acknowledges that Western Multiplex does not represent or warrant that the services provided by Western Multiplex under this Warranty will ensure uninterrupted or error- free operation of the Equipment. RETURN OF EQUIPMENT UNDER WARRANTY 2.1If an item of Equipment malfunctions or fails in normal intended usage and maintenance within the applicable Warranty Period: (a) the Customer shall promptly notify Western Multiplex of the problem and the serial number of the defective item; (b) Western Multiplex shall, at its sole opt…

Text truncated - open the document above for the full version.

A Intertek Testing Services NA Inc. 1365 Adams Ct.Menlo Park CA 94025 Telephone 650-463-2900Fax 650-463-2910Home Page www.etlsemko.com January 10, 2000 Federal Communciations Commission Authorization and Evaluation Division Laboratory Division 7435 Oakland Mills Road Columbia MD 21046 Re: EA96458 FCC ID: HZB-S58-04 Confidentiality letter Dear Sir or Madam: On January 10, 2000 at 14:00:59 EST we uploaded a document under exhibit type Cover Letter, description: letter of confidentiality. This letter was revised to remove the request to hold internal photos as confidential. The revised letter of confidentiality was uploaded as exhibit type Cover Letter, description: second letter of confidentiality. Unfortunately this second letter was brought to our attention after we had uploaded the internal photos as confidential. Please consider those photographs as no longer needing confidentiality. Should you have any questions regarding this matter please contact me at 650/463-2961 or [email protected]. Sincerely, Courtney Sherbourne Lead Technical Writer

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 May 4, 2000 RE:Response to FCC Requests Correspondence Reference Numbers: 13472 FCC IDs: HZB-S58-04 Form 731 Confirmation Numbers: EA96458 Attn:Joe Dichoso Dear Mr. Dichoso: This is in response to your request 13472. 1, 4 Please see attachment 1, which I will upload separately, for our previous responses to the Commission’s request for processing gain. Please also find the test report of the process gain document as attached at the end of this letter. The processing gain compliance is demonstrated using the method as described in part 15.247 (e) (2). All measurements are above 10dB; therefore, there was no requirement to delete worst case 20% data points. It is difficult to determine the theoretical processing gain when multiple coding technologies are implemented in combination with spreading, all of which contribute to the improvement to the received signal to noise ratio. We believe the processing gain definition given by many textbooks where spread spectrum technology is discussed alone is over simplified for our technology and can not accurately describe the improvement to the received signal to noise ratio of our system. As we have expressed in our previous letters to the Commission, and have been accepted numerous times by the Commission in our previous applications, we believe the demonstration of the specification by means of Commission-approved test procedures should acknowledge the compliance of any device. We are interested in research on the theoretical processing gain in a complex system where spread spectrum technology is implemented in combination with other technologies, and are willing to discuss and research with the Commission on this issue in the future independent of the equipment approval. 2 The maximum tested RF output power of the radio is 209mW (23.2dBm). The device should be granted approval for operation at the maximum output power with up to 41dBi-gain antenna. As we have indicated in our previous response, when 3.5dB cable loss or more is used with such a system, the use of the radio at 23.2dBm output with antennas up to 41dBi gain result in a less then 1640W EIRP. Therefore, 23.2dBm is the output power that corresponds with any antennas in the list. In real applications, there are many cases where the radio is used at a reduced output power. 3 We understand your position in regards to panel antennas. We do not plan to additionally test the radio with a panel antenna at this time. 1196 Borregas Ave., Sunnyvale, CA 94089-1302, USA Tel: +1 (408) 542-5200,Fax: +1 (408) 542-5300 Thank you for your comment on “Occupational/Controlled exposure”. In the case of our products, we do require professional installers to put up our system, and the installers must be trained and they do have or should have knowledge necessary to control their exposure conditions. However, since our system complies with the limit set for the uncontrolled environment with significant margins, we are not significantly concerned about the differences between controlled and uncontrolled environment. We will delete that statement from all future submissions to the Commission. I hope I have addressed all questions in your request. Yours truly, Caroline Yu International Product Manager Western Multiplex Corporation 12/3/1999 Processing Gain Test for HZB-S58-04 (Model 31260) Test Setup: The processing gain was measured using the CW jamming margin method as described in 15.247(e)(2). The specific test diagram is illustrated below. All test equipment and the EUT were allowed to warm up for four hours prior to start of test to minimize drift over time. All test equipment had valid calibration. Calibration of carrier and interferer levels was performed several times during testing with no observed changes. The measurements were performed on the frequency channel centered at 5750 MHz, over a range of ±5.0 MHz. The measurements made across the center ± 3.0 MHz should be used for calculation of Gp since that bandwidth represents the receiver passband. For the carrier signal, a level approximately 40 dB above threshold was chosen so that thermal noise would not effect the processing gain measurements. The measured threshold of the receive radio was ~-94 dBm at BER = 1 x 10 -6 , the signal level of the transmit radio was –58.6 dBm measured at the input of the receive radio, (Ps). For the jammer signal, -40 dBm at the generator (Pg) corresponds to – 55.8 dBm (Pj) at the receiver input. It is these numbers that were used for calculating C/I and Gp. Test Equipment: Signal GeneratorHewlett Packard 83731A Power MeterHP437B/8484A BER Test SetFireberd 6000 Explanation of Results: The following notations are used on the spreadsheet data: Pg: Power at Generator in dBm (as indicated by generator display). Pj: Power of interferer at the receiver input.(calculated in spreadsheet) Ps: Power of carrier at receiver input (initial calibration). J/S: Jammer to Signal ratio, Pj-Ps (dB) (calculated in spreadsheet) Gp: Processing Gain: (S/N)o + J/S + Lsys where: Lsys = 2 dB (S/N)o = 13.5 dB for QPSK and BER = 10 -6 (see curve provided) therefore:Gp = 13.5 + 2 + J/S = 15.5 + J/S (calculated in spreadsheet) 100% of measurements meet the minimum processing gain of 10 dB. Processing Gain Test Equipment Setup Tx 66 dB Signal Generator Pg Power Meter HP 83731A HP 437B/8484A Set for Rx signal level above threshold 8 dB Rx 3.2 dB FireBERd 6000 Ps’, Pj’ Pwr Cmb. (-4.6dB) Ps, Pj 5.750 GHz 4 Mbps LYNX-SC6 Processing Gain Measurement 12/3/99 meas #f MHzGp dBm Pj dBm Pg dBmPs dBmJ/S dB 1574539.2-34.9-19.1-58.623.7 25745.0538.1-36-20.2-58.622.6 35745.138.2-35.9-20.1-58.622.7 45745.1538.3-35.8-20-58.622.8 55745.238.4-35.7-19.9-58.622.9 65745.2538.3-35.8-20-58.622.8 75745.338.2-35.9-20.1-58.622.7 85745.3538.3-35.8-20-58.622.8 95745.438.1-36-20.2-58.622.6 105745.4538.1-36-20.2-58.622.6 115745.538-36.1-20.3-58.622.5 125745.5537.5-…

Text truncated - open the document above for the full version.

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 March 22, 2000 RE:Response to FCC Requests Correspondence Reference Numbers: 12596, 12674 FCC IDs: HZB-S58-04 Form 731 Confirmation Numbers: EA96458 Attn:Joe Dichoso Dear Mr. Dichoso: 1. I have instructed ITS to re-submit the test report for this product separately. 2. According to the ITS test report, the rated RF power output is 0.209W. The frequency range is 5730 – 5845 MHz. 3. Please refer to attachment 1 for explanations on processing gain. The same questions were asked earlier with the applications of HZBLYNX96, HZB-S58-12 and HZB-S58-12, and we provided similar responses. Approvals were granted to all the above mentioned products. 4. As you know, the telecommunications market changes rapidly. New manufacturers and products will emerge, and some products and vendors that exist today could vanish at a later time. For this reason, we tried to make recommendations on antennas based on their specifications rather than by brand name and model numbers, even though we do mention some typical vendors and models as examples. We believe as long as the antennas are consistent in their technical specifications, the differences in brand name, model number, and type should not cause discernable differences in radiated emission and RF exposure. We hope when grant conditions are necessary, these conditions will be made in the form of specifications (for example, size, gain range, or EIRP) rather than in the form of model names and vendors as the Commission has recently done on some of our applications. In addition to brand name issues, we are unclear why the Commission makes a distinction between panel antennas and parabolic dish antennas, when the gains, beamwidths, and other related performance specifications are nearly identical. We would like to be able to recommend 2-8 foot parabolic antennas, and 1 and 2 foot panel antennas to our customers, with antenna gain up to 41dBi. For your reference, the following table gives a list of the typical models of those antennas made by various manufacturers with the antenna gain specifications. As you can see, though of different made and model, antennas of the same size are very consistent in antenna gains. So even though the equipment was tested with a parabolic antenna, we truly believe a panel antenna of a similar gain will not introduce any negative impact on the radio emission and RF exposure. Please reconsider allowing the radio to be used with 1 and 2 foot panel antenna without additional testing. 1196 Borregas Ave., Sunnyvale, CA 94089-1302, USA Tel: +1 (408) 542-5200,Fax: +1 (408) 542-5300 Antenna TypeManufacturerModel NumberMid-band Gain (dBi) 1 Foot Flat PanelGabrielDFPD1-5223.5 2 Foot Flat PanelGabrielDFPD2-5228 2 Foot ParabolicGabrielSSP2-52B28.5 RSIP-57C2429 Radio WavesSP2-5.228.3 3 Foot ParabolicRadio WavesSP3-5.231.4 4 Foot ParabolicGabrielSSP4-52A34.2 RSIP-57B4834.7 Radio WavesSP4-5.234.6 6 Foot ParabolicGabrielSSP6-52A37.5 RSIP-57A7238.2 Radio WavesSP6-5.237.7 8 Foot ParabolicGabrielDRFB8-55ASE40.7 RSIP-57A9640.8 It is our desire to certify the radio with a maximum antenna gain of 41dBi. When a minimum RF cable loss of 3.5dB is taken into consideration, the radio maximum EIRP is +60.7dBm, which is below the limit of 62.1dBm (1640W) as described in 1.1307(b). Please refer to attachment 2. I hope I have addressed all your concerns. If you may have any further questions, please address to the undersigned. Yours truly, Caroline Yu International Product Manger Western Multiplex Corporation Attachment 2 The HZB-S58-04 radios are fixed-mount equipment designed for point-to-point outdoor communications. The antennas must be highly directional, and the transmission path must have line-of-sight clearance. The radio antennas must be installed either on top of a tower or a very high building so that the line-of-sight condition can be met. Therefore, the antenna sites are not accessible to the general public. Installation of the radios and antennas must be performed by professional installation engineers. The transmission paths of the radios are well above ground level radiating in a beam point to point rather than omnidirectional to the general public like a paging transmitter. Given all the conditions mentioned above, the radiation of our radios should be considered in the Occupational/Controlled exposure category, rather than of General Population/Uncontrolled Exposure category. However, we still comply with the limit set for General Population/uncontrolled exposure as specified in 1.1310, as calculated in the RF exposure cover letter in the application submission. We have included a warning message in our manual informing installers to keep at least five meters away from the antenna while the equipment is in operation. Due to the fact that the HZB-S58-04 radio is used for fix-mount point-to-point communication that requires line-of –sight clearance in the path and that the radio is single-unit in-door equipment, the antenna sites are always far away from the radio equipment room. The typical length of RF cable that runs from the output of the radio to the antenna input is over 100 feet. In situations where an antenna site is extremely far from the equipment room, waveguide may be used as a means to reduce the loss from RF transmission. A typical distance between antenna and radio when waveguide is used is over 200 feet. To give a worst example, let’s assume 100 feet Andrew 5/8” foam coax cable or 200 feet Andrew waveguide is used. Given 0.5dB loss for the connectors on each end, the loss introduced by RF cabling is at least 3.5-5.5 dB (please refer to the table below for Loss/100’ data). As for the majority of cases, the transmission line loss is usually in the range of over 10dB. When this loss is taken into consideration, the maximum possible EIRP will be: Maximum Output power + Maximum Antenna Gain – Minimum Implementation Loss = …

Text truncated - open the document above for the full version.

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 March 22, 2000 RE:Response to FCC Requests Correspondence Reference Numbers: 12596, 12674 FCC IDs: HZB-S58-04 Form 731 Confirmation Numbers: EA96458 Attn:Joe Dichoso Dear Mr. Dichoso: 1. I have instructed ITS to re-submit the test report for this product separately. 2. According to the ITS test report, the rated RF power output is 0.209W. The frequency range is 5730 – 5845 MHz. 3. Please refer to attachment 1 for explanations on processing gain. The same questions were asked earlier with the applications of HZBLYNX96, HZB-S58-12 and HZB-S58-12, and we provided similar responses. Approvals were granted to all the above mentioned products. 4. As you know, the telecommunications market changes rapidly. New manufacturers and products will emerge, and some products and vendors that exist today could vanish at a later time. For this reason, we tried to make recommendations on antennas based on their specifications rather than by brand name and model numbers, even though we do mention some typical vendors and models as examples. We believe as long as the antennas are consistent in their technical specifications, the differences in brand name, model number, and type should not cause discernable differences in radiated emission and RF exposure. We hope when grant conditions are necessary, these conditions will be made in the form of specifications (for example, size, gain range, or EIRP) rather than in the form of model names and vendors as the Commission has recently done on some of our applications. In addition to brand name issues, we are unclear why the Commission makes a distinction between panel antennas and parabolic dish antennas, when the gains, beamwidths, and other related performance specifications are nearly identical. We would like to be able to recommend 2-8 foot parabolic antennas, and 1 and 2 foot panel antennas to our customers, with antenna gain up to 41dBi. For your reference, the following table gives a list of the typical models of those antennas made by various manufacturers with the antenna gain specifications. As you can see, though of different made and model, antennas of the same size are very consistent in antenna gains. So even though the equipment was tested with a parabolic antenna, we truly believe a panel antenna of a similar gain will not introduce any negative impact on the radio emission and RF exposure. Please reconsider allowing the radio to be used with 1 and 2 foot panel antenna without additional testing. 1196 Borregas Ave., Sunnyvale, CA 94089-1302, USA Tel: +1 (408) 542-5200,Fax: +1 (408) 542-5300 Antenna TypeManufacturerModel NumberMid-band Gain (dBi) 1 Foot Flat PanelGabrielDFPD1-5223.5 2 Foot Flat PanelGabrielDFPD2-5228 2 Foot ParabolicGabrielSSP2-52B28.5 RSIP-57C2429 Radio WavesSP2-5.228.3 3 Foot ParabolicRadio WavesSP3-5.231.4 4 Foot ParabolicGabrielSSP4-52A34.2 RSIP-57B4834.7 Radio WavesSP4-5.234.6 6 Foot ParabolicGabrielSSP6-52A37.5 RSIP-57A7238.2 Radio WavesSP6-5.237.7 8 Foot ParabolicGabrielDRFB8-55ASE40.7 RSIP-57A9640.8 It is our desire to certify the radio with a maximum antenna gain of 41dBi. When a minimum RF cable loss of 3.5dB is taken into consideration, the radio maximum EIRP is +60.7dBm, which is below the limit of 62.1dBm (1640W) as described in 1.1307(b). Please refer to attachment 2. I hope I have addressed all your concerns. If you may have any further questions, please address to the undersigned. Yours truly, Caroline Yu International Product Manger Western Multiplex Corporation Attachment 1 Re. Processing Gain Western Multiplex considers the response to this specific question as proprietary, as this information would be consistent with that included in the theory of operation, which has already been submitted for proprietary consideration under Section 0.457(d). Please maintain this level of confidentiality with the following response. The Commission has previously approved several Western Multiplex devices with this identical spreading rate. The first few models that implemented this technology were simply approved without comment. Subsequently, it was determined during the review and approval of HZB-LYNX62, that the theoretical processing gain is of no significance, but instead that it is the demonstration of the specification by means of Commission-approved test procedures that should acknowledge compliance of any device. To support this original decision, it is acknowledged the Commission’s test methods include deletion of a portion of the data along with 2 dB implementation loss. These factors, in turn, allow for devices with less than 10 dB theoretical processing gain to meet the 10 dB requirement, so long as the design is very robust. Once again, Western Multiplex expresses that a design that has less spreading and can demonstrate 10 dB processing gain using these test methods is more efficient than a design that has more spreading and demonstrates 10 dB processing gain. The Commission is directed to the correspondence within the HZB-LYNX62 application, where the Commission (knowingly) approved a device with identical spreading rate. At this time, it appears that the Commission may be considering “coding methods” other than spreading to attribute to processing gain. With this in mind, the Commission may wish to know that this device also implements forward error correction (FEC) coding, which manifests as additional processing gain to the basic spreading function. The FEC is Reed-Solomon coding with a factor of T=4 (corrects 4 error events within each 8-bit block). Reed-Solomon coding processing gain is dependent upon the nature of the interference source, however, based on our tests, can attribute for at least 2 dB of processing gain under all interference conditions, and higher processing gain for coherent interference sources. Attachment 2 The HZB-S58-04 radios are fixed-mount equipment designed for point-to…

Text truncated - open the document above for the full version.