1. CHECK DATA, PARAMETER SPECIFYING SEGMENT POSITION IN A GROUP OF EQUAL TAGS CANNOT BE ZERO. Routine: ISEGNO This error results from an input data error and may occur at any point where a tag number is used to identify a segment. Execution terminated. Data on the NT, TL, EX, and PT cards should be checked. 2. CONNECT - SEGMENT CONNECTION ERROR FOR SEGMENT _. Routine: CONNECT Possible causes: number of segments at a junction exceeds limit; segment lengths are zero; array overflow. 3. DATA FAULT ON LOADING CARD NO. =__ ITAG STEP1 =__ IS GREATER THAN ITAG STEP2 = __ Routine: MAIN When several segments are loaded, the number of the second segment specified must be greater than the number of the first segment. Execution terminated. 4. EOF ON UNIT __NBLKS = __NEOF = __. Routine: BLCKIN, entry point of BLCKOT An end of file has been encountered while reading data from the unit. NBLKS determines how many records are read from the unit. NEOF is a flag to indicate which call to BLCKIN initiated the read. If NEOF = 777, this diagnostic is normal and execution will continue. Otherwise, an error is indicated and execution will terminate. 5. ERROR - ARC ANGLE EXCEEDS 360. DEGREES Routine: ARC Error on GA card. 6. ERROR - B LESS THAN A IN ROM2 Routine: ROM2 Program malfunction. 7. ERROR - FR/GN CARD IS NOT ALLOWED WITH N.G.F. Routine: Main See section III-5. 8. ERROR - CORNERS OF QUADRILATERAL PATCH DO NOT LIE IN A PLANE. Routine: Patch The four corners of a quadrilateral patch (SP card) must lie in a plane. 9. ERROR - COUPLING IS NOT BETWEEN 0 AND 1 Routine: Couple Inaccuracy in solution or error in data. 10. ERROR - GF MUST BE FIRST GEOMETRY DATA CARD Routine: DATAGN See section III-5. 11. ERROR IN GROUND PARAMETERS - COMPLEX DIELECTRIC CONSTANT FROM FILE IS _____ REQUESTED_____. Routine: MAIN Complex dielectric constant from file TAPE21 does not agree with data from GN and FR cards. 12. ERROR - INSUFFICIENT STORAGE FOR INTERACTION MATRICES. IRESRV, IMAT. NEQ. NEQ2 = Routine: FBNGF Array storage exceeded in NGF solution. 13. ERROR - INSUFFICIENT STORAGE FOR MATRIX Routine: FBLOCK Array storage for matrix is not sufficient for out-of-core solution. 14. ERROR - NETWORK ARRAY DIMENSIONS TOO SMALL. Routine: NETWK The number of different segments to which transmission lines or network ports are connected exceeds array dimensions. Execution terminated. Array size in the original NEC deck is 30. Refer to array dimension limitations in Part II for changing array sizes. 15. ERROR - LOADING MAY NOT BE ADDED TO SEGMENTS IN N.G.F. SECTION Routine: LOAD See section III-5. 16. ERROR - N.G.F. IN USE. CANNOT WRITE NEW N.G.F. Routine: MAIN 17. ERROR - NO. NEW SEGMENTS CONNECTED TO N.G.F. SEGMENTS OR PATCHES EXCEEDS LIMIT. Routine: CONECT Array dimension limit. 18. FAULTY DATA CARD LABEL AFTER GEOMETRY SECTION. Routine: MAIN A card with an unrecognizable mnemonic has been encountered in the program control cards following the geometry cards. Execution terminated. 19. GEOMETRY DATA CARD ERROR. Routine: DATAGN A geometry data card was expected, but the card mnemonic is not that of a geometry card. Execution terminated. After the GE card in a data deck, the possible geometry mnemonics are GE, GM, GR, GS, GW, GX, SP, and SS. The GE card must be used to terminate the geometry cards. 20. GEOMETRY DATA ERROR - - PATCH __ LIES IN PLANE OF SYMMETRY. Routine: REFLC 21. GEOMETRY DATA ERROR - - SEGMENT __ EXTENDS BELOW GROUND, Routine: CONECT When ground is specified on the GE card, no segment may extend below the XY plane. Execution terminated. 22. GEOMETRY DATA ERROR - - SEGMENT __ LIES IN GROUND PLANE. Routine: CONECT When ground is specified on the GE card, no segment should lie in the XY plane. Execution terminated. 23. GEOMETRY DATA ERROR - - SEGMENT __ LIES IN PLANE OF SYMMETRY. Routine: REFLC A segment may not lie in or cross a plane of symmetry about which the structure is reflected since the segment and its image will coincide or cross. Execution terminated. 24. IMPROPER LOAD TYPE CHOSEN, REQUESTED TYPE IS __. Routine: LOAD Valid load types (LDTYP on the LD card) are from 0 through 5. Execution terminated. 25. INCORRECT LABEL FOR A COMMENT CARD. Routine: MAIN The program expected a comment card, with mnemonic CM or CE, but encountered a different mnemonic. Execution terminated. Comment cards must be the first cards in a data set, and the comments must be terminated by the CE mnemonic. 26. LOADING DATA CARD ERROR, NO SEGMENT HAS AN ITAG=__. Routine: LOAD ITAG specified on an LD card could not be found as a segment tag. Execution terminated. 27. NO SEGMENT HAS AN ITAG OF __. Routine: ISEGNO This error results from faulty input data and can occur at any point where a tag number is used to identify a segment. Execution terminated. Tag numbers on the NT, TL, EX, CP, PQ, and PT cards should be checked. 28. NOTE, SOME OF THE ABOVE SEGMENTS HAVE BEEN LOADED TWICE, IMPEDANCES ADDED. Routine: LOAD A segment or segments have been loaded by two or more LD cards. The impedances of the loads have been added in series. This is only an informative message. Execution continues. 29. NUMBER OF EXCITATION CARDS EXCEEDS STORAGE ALLOTTED. Routine: MAIN The number of voltage source excitations exceeds array dimensions. Execution terminated. The dimensions in the original NEC deck allow 10 voltage sources. Refer to Array Dimension Limitations in Part II to change the dimensions. 30. NUMBER OF LOADING CARDS EXCEEDS STORAGE ALLOTTED. Routine: MAIN The number of LD cards exceeds array dimension. Execution terminated. The dimension in the original NEC deck allows 30 LD cards. Refer to Part II to change the dimensions. 31. NUMBER OF NETWORK CARDS EXCEEDS STORAGE ALLOTTED. Routine: MAIN The number of NT and TL cards exceeds array dimension. Execution terminated. The dimension in the original NEC deck allows 30 cards. Refer to Array Dimension Limitations in Part II to change the dimensions. 32. NUMBER OF SEGMENTS IN COUPLING CALCULATION (CP) EXCEEDS LIMIT. Routine: MAIN Array dimension limit. 33. NUMBER OF SEGMENTS AND SURFACE PATCHES EXCEEDS DIMENSION LIMIT. Routine: DATAGN The sum of the number of segments and patches is limited by dimensions. The present limit is 300. 34. PATCH DATA ERROR. Routine: DATAGN Invalid data on SP, SM, or SC card; or SC card not found where required. 35. PIVOT(__) = __. Routine: FACTR (in-core) or LFACTR (out-of-core) This will be printed during the Gauss Doolittle factoring of the interaction matrix or the network matrix when a pivot element less than 10E-10 is encountered, and indicates that the matrix is nearly singular. The number in parentheses shows on which pass through the matrix the condition occurred. This is usually an abnormal condition although execution will continue. It may result from coinciding segments or a segment of zero length. 36. RADIAL WIRE G.S. APPROXIMATION MAY NOT BE USED WITH SOMMERFELD GROUND OPTION. Routine: MAIN 37. RECEIVING PATTERN STORAGE TOO SMALL, ARRAY TRUNCATED. Routine: MAIN The number of points requested in a receiving pattern exceeds array dimension. Execution will continue, but storage of normalized pattern will be truncated. This array dimension is 200 in the original NEC deck. Refer to Array Dimension Limitations in Part II to change dimension. 38. ROM2 - - STEP SIZE LIMITED AT Z = Routine: ROM2 Probably caused by a wire too close to the ground in the Somerfeld/ Norton ground method. Execution continues but results may be inaccurate. 39. SBF - SEGMENT CONNECTION ERROR FOR SEGMENT__. Routine: SBF The number of segments at a junction exceeds dimension limit (30), or the connection numbers are not self-consistant. 40. SEGMENT DATA ERROR. Routine: MAIN A segment with zero length or zero radius was found. Execution terminated. 41. STEP SIZE LIMTED AT Z=__. Routine: INTX, HFX The numerical integration to compute interaction matrix elements, using the Romberg variable interval width method, was limited by the minimum allowed step size. Execution will continue. An inaccuracy may occur but is usually not serious. May result from thin wire or wire close to the ground. 42. STORAGE FOR IMPEDANCE NORMALIZATION TOO SMALL, ARRAY TRUNCATED. Routine: MAIN The number of frequencies on FR card exceeds the array dimension for impedance normalization. An impedance beyond the limit will not be normalized. Execution continues. The limit is 50 in the original NEC deck. Refer to Array Dimension Limitations in Part II to change limit. 43. SYMMETRY ERROR - NROW, NCOL = Routine: FBLOCK Array overflow or program malfunction. 44. TBF - SEGMENT CONNECTION ERROR FOR SEGMENT _. Routine: TBF Same as error 39. 45. TRIO - SEGMENT CONNECTION ERROR FOR SEGMENT _. Routine: TRIO Same as error 39. 46. WHEN MULTIPLE FREQUENCIES ARE REQUESTED, ONLY ONE NEAR FIELD CARD CAN BE USED - LAST CARD READ IS USED. Routine: MAIN Execution continues.