{"title":"Federal Communications Commission Notice of Inquiry on Interference from Ignition Systems","authors":"J. Deitz","doi":"10.1109/ISEMC.1976.7568763","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568763","url":null,"abstract":"3. The interference from a single vehicle that is complying with the SAE standard can be of small intensity and short duration. However, the collective effect of a flow of vehicles from a nearby thoroughfare degrades radio reception to a degree dependent on the traffic rate. Most affected are mobile units since they receive radio signals while surrounded by a number of other motor vehicles. Often a vehicle limits its own reception capability by the radio noise it generates. This has","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"244 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124266060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Susceptibility on the Freeways","authors":"R. Cowdell","doi":"10.1109/ISEMC.1976.7568687","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568687","url":null,"abstract":"I l l u s t r a t e d c a s e s o f autom obile and alarm system s u s c e p t i b i l i t i e s caused by e le c tr o m a g n e t i c r a d ia t io n emphasize t h a t m a l fu n c t io n and f a i l u r e problems are be coming more commonplace in our commercial environment. Most problems a re due t o land m obile t r a n s m i t t e r s . FCC e s t a b l i s h e d maximum and minimum a v a i l a b l e power l e v e l s u s in g o m n id ir ec t io n a l and high ga in antennas are com pared w ith measured f i e l d i n t e n s i t i e s to determine rea so na b le s u s c e p t i b i l i t y t e s t l e v e l s a g a i n s t which to d e s ig n equipment. These l e v e l s and th e t e s t methods o f the RS03 and RS04 t e s t s in MIL-STD-461A can then be used from 1 MHz through 1 GHz as a standard to t e s t the s a f e t y o f commercial equipment.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131061933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Biological Significance of Power Line and High Voltage Switchyard Environments","authors":"J. Bridges","doi":"10.1109/ISEMC.1976.7568730","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568730","url":null,"abstract":"The r e s u l t s o f a comprehensive l i t e r a t u r e survey and rev iew o f ongoing e f f o r t s u p p le mented by s p e c i a l l y conducted f i e l d m easure ments are summarized. Research to date in Western Europe and America has f a i l e d to pro v id e any ev id e n c e th a t human exposure to p r e s en t l e v e l s o f f i e l d s from h igh v o l t a g e o v e r head power l i n e s , as norm ally en cou n tered , has any harmful b i o l o g i c a l e f f e c t . On th e o th er hand, s t u d i e s performed in th e USSR r e p o r t some u n d e s ir a b le e f f e c t s on w o r k e r s -n o t in th e t y p i c a l power l i n e env iron m en t--b u t in th e more complex environments found in h igh v o l t age s w i t c h y a r d s . The d i s p a r i t y in r e s u l t s cou ld be a t t r i buted to d i f f e r e n c e s between th e environments found in h ig h v o l t a g e l i n e s and s w i tc h y a r d s . S p e c ia l measurements conducted o f the lowfrequency a c o u s t i c a l n o i s e in a h ig h v o l t a g e sw itch yard d i s c l o s e d a h ig h l e v e l (104 dB) o f 120 Hertz sound. This h ig h i n t e n s i t y , 100 or 120 Hertz sound, found in sw itch yard s (but n ot near t r a n s m is s io n l i n e s ) cou ld produce symp toms s im i la r to th o s e rep o r te d fo r S o v ie t sw itch yard w orkers. The b i o l o g i c a l l y s i g n i f i can t environm ental d i f f e r e n c e s are d is c u s s e d . Numerous s t u d i e s have s i m i l a r l y n e g le c t e d th e t o t a l environment and examples are p r e s en ted . This n e g l e c t p r e s e n t s a major o b s t a c l e in t r y in g to u se th e re su lt 's o f t h e s e s t u d i e s .","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134172415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Shielding Characteristics of Advanced Composites","authors":"D. Strawe","doi":"10.1109/ISEMC.1976.7568720","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568720","url":null,"abstract":"Advanced composites technology has progressed rapidly in the past decade. Design studies and' hardware development activities on existing aircraft have confirmed that significant cost savings, weight savings, and consequent performance increases can result from modi fying metal structural designs by the inclusion o f composite structure designs, utilizing boron-filament, graphite-fiber, and glass-reinforced epoxies. One area o f concern, expressed by both the Air Force and air craft companies, is the impact o f composite materials on the function ing o f airborne electrical: and electronic components, when compos ites are applied to large areas o f aircraft structures and the aircraft Is exposed to high-level electromagnetic fields such as the electromag netic pulse, EMP, associated with a nuclear detonation,","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116587785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Solution of Large Wire Grid Moments Problems","authors":"T. Ferguson, R. Balestri","doi":"10.1109/ISEMC.1976.7568742","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568742","url":null,"abstract":"An i t e r a t i v e t e c h n i q u e f o r r e d u c i n g t h e c o s t o f s o l u t i o n o f t h e l i n e a r s i m u l t a n e o u s e q u a t i o n s a r i s i n g from t h e t h i n w i r e method o f moments f o r m a l i s m i s p r e s e n t e d . The method i s a p p l i e d t o w i r e g r i d models o f v a r i o u s o b j e c t s . Near-opt imum model p a r a m e t e r s a r e e s t a b l i s h e d by c o mp a r i s o n s t o e x a c t t h e o r e t i c a l c a l c u l a t i o n s . Computer c o s t s f o r pr obl ems w i t h up t o 1000 unknowns a r e d e t a i l e d . The d e s i g n and i n i t i a l i m p l e m e n t a t i o n o f a g e n e r a l s ys t em s s i m u l a t i o n p r o gram i s h e a v i l y i n f l u e n c e d by t h e p r o g r e s s o f t h i s s t u d y .","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130878910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of Advanced Composites on Shielding and Antenna Performance","authors":"C. D. Skouby","doi":"10.1109/ISEMC.1976.7568722","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568722","url":null,"abstract":"The shielding effectiveness of composite panels is examined for a plane wave source representative of an electromagnetic (EM) interference threat for the frequency range of 50 kHz to 18 GHz. The effects of fabrication details are demonstrated by test data from three structures which used different panel thicknesses and methods of panel attachment. An assessment of the inherent shielding of composite material is made by analysis and from the results of tests on specimens subjected to a TEM wave in a coaxial line. Results show that while the shielding provided by composite materials is much less than for metal, it is large enough that in most cases the leakage through joints or seams will be the limiting factor in the shielding effectiveness of structures. equal unless the wave impedance (E to H ratio) is a constant value (independent of position) on both sides of the shield. This emphasizes the fact that measured values for shielding effectiveness are not unique to the material being tested but depend upon the test configuration and procedures employed.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116042492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EMC in Utility Corridors the Aerospace Corporation","authors":"C. B. Pearlston","doi":"10.1109/ISEMC.1976.7568701","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568701","url":null,"abstract":"The corridor concept entails the grouping of power, communications, pipelines, railroads, and highways in one overall right-of-way in order to minimize land usage. This grouping of utilities, while advantageous from a land usage point of view, raises strong technical problems of interference between the utilities. Certainly, the need for any utility corridor concept must assess issues such as land use, environmental, social, economic, aesthetic and legal factors. The technical feasibility aspect, however, must focus on the interaction between the various using utilities and try to determine certain minimum widths for a utility corridor within which these utilities can compatibly operate. In such an evaluation, the effects of various corridor widths have to be analyzed in relation to protective measures and added costs.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131824276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Abstract Aspects of VLF Shielding Design and Fabrication","authors":"F. Nichols","doi":"10.1109/ISEMC.1976.7568707","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568707","url":null,"abstract":"Summary form only given. VLF Shielding, below 10 KHz and down to 20-30 Hz, requires design considerations and unique fabrication and installation techniques. The lower the frequency of concern, the more critical the choice of materials and the fabrication and installation of these materials in the high performance VLF shielded room. Since the greatest design and fabrication is with respect to the magnetic component in VLF shielding, this presentation will cover elementary design and performance information with respect to the absorptive losses in both far field and induced near field conditions. All-important in design and fabrication considerations is the reluctance of joints, door seams and other penetrations. Also unique is the honeycomb type of air vents when used as a shield in induced magnetic fields. Power line filters present challenging problems when the frequency of shielding is in the pass band of these filters. VLF shielding and information on the above will be covered with equal attention to the design, selection of materials and fabrication. Illustrations will be given for typical applications for Tempest and EMP requirements.","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132559406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"System Level Testing for Electromagnetic Compatibility","authors":"E. P. Brummett","doi":"10.1109/ISEMC.1976.7568749","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568749","url":null,"abstract":"","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125709190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MRCA System Compatibility","authors":"E. Pruegel, R. Rode","doi":"10.1109/ISEMC.1976.7568753","DOIUrl":"https://doi.org/10.1109/ISEMC.1976.7568753","url":null,"abstract":"","PeriodicalId":296335,"journal":{"name":"IEEE 1976 International Symposium on Electromagnetic Compatibility","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127729980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}