The numbers in parentheses indicate the number of marked items (1 mark each). Labs Lab 1 Pre-Lab (4) - first page contains name, ID, course and lab number - a table with 0/1 bit values and voltage levels - a waveform drawing - a reasonably-complete C program Lab 1 Report (4) - hexedit, audacity and 'scope (3) - C program listing Lab 2 Pre-Lab (4) q1 - output levels >+/- 5V (at transmitter) q2 - on a DTE RxD is an input (AWG output) q3 - baud rate = sample rate/8 code - reasonable code Lab 2 Report (3) - teraterm screen capture showing your name - 'scope screen capture - code listing Lab 3 Pre-Lab (4) - equations for C L and l - cat 5 specifications for C (50pF) and L (500nH) - min/max C values (~50 and 250pF) - a spreadsheet Lab 3 Report (3) - the package number - spreadsheet with measurement data and results - comparison of measured to published Cat 5 C and L per meter Lab 4 Pre-Lab (3) - questions 2, 3 and 4 were marked Lab 4 Report (3) - code listing that includes a limit of 100kHz in the while() loop - a graph of the frequency response (phase and amplitude) - computed roll-off corresponding to graphed data (typically ~10 dB/octave) Lab 5 Pre-Lab (3) - q2(a) - q3: AC voltage accuracy limit (not 1 MHz; that's for frequency measurements) - q4(a) Lab 5 Report (3) - .csv, .xls and .pdf files uploaded - screen captures for 3 waveforms - some sort of discussion about noise measurement discrepancy (even if the explanation was not quite right) Lab 6 Pre-Lab (2) - (2) applying > results in 1/0 values - (3) matrix has 2 rows, 3 columns Lab 6 Report (3) - 3 screen captures for 3 waveforms - one plot with 3 spectra - correct frequencies of first nulls Lab 7 Pre-Lab (2) - (1) a reasonable (4 or 5 caps, signal/pin labels) schematic - (6) slew rate specification Lab 7 Report (3) - screen captures showing slew rate measurement - reasonable Zin measurement result - reasonable slew rate measurement result Lab 8 Pre-Lab (3) - screen capture of packet - includes student's name - includes CRC Lab 8 Report (3) - Wireshark screen capture showing name - 2 'scope screen captures - wireshark does not show preamble or CRC Assignments Assignment 1 (7) q1a calculation is a weighted sum of log2(Pi) q1a 1.78 bits/message q1e information rate is still 0.89 bits/s q2 75.5 kb/s q3 0xe1 0x94 0xa5 q4 LS 4 bits of (d) are bit-reversed MS 4 bits of (a) q5 0x78 (Assignment 1 was originally marked out of 6 but 7 items were marked. The marks have been revised to reflect that 7 items were marked.) Assignment 2 (7) q1b - for equal Ae use 5 GHz q1c(ii) - for equal gains use 2.4 GHz q2a - v ~ 2.04E8 m/s q2b - about 3.6 dB for 20 km q3 - group delay about -5s q4 - 5% prob of >20 q5 - frequency is 5 MHz Assignment 3 (5) q1 - correct waveform q2 - correct rate (90 MHz) q3 - correct BER (and method) q4 - remainder 0 (and method) q5 - 800/100 Mid-Term Exam 1 Marks assigned as follows (total of 9): Q1 a: 3 marks: correct numer of bits, correct bit polarity, correct bit order b: 1 (if same as a) c: 1 (if correct) Q2: One mark for: - use of Friis equation - solved for distance - computed wavelength from c and f (possibly indirectly) - correct answer Mid-Term Exam 2 One mark per correct answer (total of 8): Q1: 5 (one each for parts a, b, and c; 2 for d) Q2: 3 (one each for parts a, b and c) Final Exam q1: three marks for: 2 bytes, C2B5 or C386 (or a correct 3-byte encoding), correct bit-reversal q2: five marks for: three marks for correct waveform (bits, bit order, differential encoding) two marks for correct axis scale (H,V) q3: 4 marks for: use of AWGN capacity formula, solve for bandwidth, compute correct SNR, get correct bandwidth q4: 2 marks: correct bytes included in frame, unescaping of flag character q5: 5 marks: minimum distance calculation, correct minimum distance value (d), detectable errors (consistent with d), correctable errors, most likely value transmitted q6: 3 marks: one per section; any reasonable length value was accepted (e.g. 2, 16, 64, ...) was accepted for the length (but not 0x0800 or 2048 - this is the value of the type field) - ... - ...