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EC ENGR 239AS · Lec 1

Special Topics in Signals and Systems: Lecture 1

Fall 2026Roberts, I.4 units

dibs reads this section's seats hourly, like everything else, but it does not send alerts for graduate courses yet.

Seats, time, final and grades

Seats

Open, 8 seats left.

32 of 40 enrolled.

Read 5 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

Meets

TR 10:00am-11:50am

Every meeting the registrar lists for this section.

Final

Wed 9 Dec, 8:00am to 11:00am

One exam for the whole class, Los Angeles time.

Read 3 days ago.

Grades

3.83

Predicted GPA

Historical records for ROBERTS, IAN; 84 letter grades

dibs has seen this section open 11 times since 18 August. The last time was 29 September.

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Registrar's Restrictions cell, read 3 days ago: "Graduate Students".

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

Restrictions checked 3 days ago and may be outdated. Seat alerts are unavailable for this course. Check the registrar.

When it meets

Mon
Tue
Wed
Thu
Fri
10am
11am

Lec 1

10am-11:50am

Lec 1

10am-11:50am

Scroll sideways for the whole week. All meeting times are listed below.

  • Lec 1

    TR 10:00am-11:50am

Boelter Hall 5420

Grades

3.83

Predicted GPA

Historical records for ROBERTS, IAN; 84 letter grades

Of the 6 other people in the grade record for EC ENGR 239AS, the 2 with the most grades: KAO, JONATHAN CHAU-YAN at 3.99 over 531 grades and KADAMBI, ACHUTA at 3.89 over 179 grades.

A range
88%
P/NP
2%
D/F/W
0.0%

Full grade history for EC ENGR 239AS

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

What the work looks like

  • Exams mentioned, no number given, 1 mention in past reviews

Based on 2 reviews; source checked 6 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

Will it still be here

Not a question any more: see the notice at the top of this page.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 4922W
  • 3022S
  • 5722F
  • 1823S
  • 6923F
  • 3424W
  • 9424S
  • 2024F
  • 6325W
  • 6525S
  • 3425F
Enrollment by term: 22W 49, 22S 30, 22F 57, 23S 18, 23F 69, 24W 34, 24S 94, 24F 20, 25W 63, 25S 65, 25F 34

Peak 94 · most recent 25F at 34

Seats over time

Nothing read since 16 Oct, 5 hours ago. Over about 2 months before that, freed 8 seats.

11 times reopened
32 of 40 · 8 left
18 Aug 18:4017 Sep 05:4116 Oct 16:42 · 5 hours ago
Checked 168 of the 630 hours with hourly history, 27%. No reading was recorded in 462 hours. dibs had no hourly record before 20 Sep, which is the other 785 of 1415 plotted.32 of 40 enrolled at the newest reading, 5 hours ago, with 8 left. Seats from 18 Aug 18:40 to 16 Oct 16:42, 40 to 32. Checks are not continuous monitoring. Changes between checks may be missed.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not, and that was 5 hours ago. It is where the line stops, not where the count is now.

Show the readings (35)
Recorded Enrolled Capacity Status Waitlist Hours read
16 Oct 16:42 32 40 open - 50 of 185
9 Oct 00:12 32 40 open - 14 of 48
7 Oct 01:32 33 40 open - 7 of 22
6 Oct 04:32 34 40 open - 29 of 125
1 Oct 00:02 36 40 open - 3 of 8
30 Sep 17:02 37 40 open - 6 of 20
29 Sep 22:32 38 40 open - 2 of 4
29 Sep 19:02 40 40 closed - 2 of 5
29 Sep 15:32 39 40 open - 2 of 4
29 Sep 12:02 40 40 closed - 2 of 5
29 Sep 08:32 39 40 open - 6 of 18
28 Sep 15:02 40 40 closed - 6 of 19
27 Sep 21:32 38 40 open - 6 of 18
27 Sep 04:12 37 40 open - 2 of 5
27 Sep 00:02 38 40 open - 2 of 5
26 Sep 20:32 37 40 open - 5 of 15
26 Sep 06:32 38 40 open - 30 of 104
21 Sep 23:22 39 40 open - 2 of 5
21 Sep 19:52 40 40 closed - 2 of 4
21 Sep 16:22 39 40 open - 9 of 36, 6 no hourly record
20 Sep 05:22 40 40 closed - no hourly record
20 Sep 00:52 38 40 open - no hourly record
19 Sep 17:52 40 40 closed - no hourly record
18 Sep 04:32 38 40 open - no hourly record
17 Sep 17:02 39 40 open - no hourly record
16 Sep 22:32 40 40 closed - no hourly record
16 Sep 08:32 38 40 open - no hourly record
16 Sep 01:42 39 40 open - no hourly record
13 Sep 00:32 40 40 closed - no hourly record
12 Sep 14:02 39 40 open - no hourly record
12 Sep 04:32 40 40 closed - no hourly record
10 Sep 01:40 39 40 open - no hourly record
8 Sep 09:40 40 40 closed - no hourly record
4 Sep 05:40 39 40 open - no hourly record
18 Aug 18:40 40 40 closed - -
How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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