| Studier of distant emissions | 28 |
| Green Bank Telescope user | 25 |
| Nondirectional transmitter of a usually constant signal | 55 |
| Ham operator's "Hurrah!"? | 39 |
| Announcer's gig | 19 |
| Alfa Romeo, e.g. | 16 |
| 1987 Woody Allen film | 21 |
| 1987 Woody Allen movie | 22 |
| ... of 1987 | 11 |
| AM/FM programs aired in Brazil's first month? | 49 |
| Newspaper for hams? | 19 |
| One supplying drive-time music, briefly | 39 |
| One might do a countdown | 24 |
| Old soap, sometimes | 19 |
| Many a 1930s soap opera | 23 |
| Welles on Mars, e.g. | 20 |
| Old soap, perhaps | 17 |
| Wirelessly transmitted | 22 |
| Sent a message to shore, say | 28 |
| Contacted by shortwave | 22 |
| Clean version of a song | 23 |
| Version of a song that's shorter or cleaner than the original | 65 |
| Broadcast-friendly version of a pop single with profanity | 57 |
| Ship-to-shore handler | 21 |
| U.S.-funded broadcaster, ___ Europe | 35 |
| Classic wagon | 13 |
| Classic toy whose ancestor was the Liberty Coaster | 50 |
| Classic toy wagon | 17 |
| Classic little red wagon | 24 |
| Classic kids' wagons | 24 |
| Broadcaster behind the Iron Curtain | 35 |
| Organization that began broadcasting on July 4, 1950 | 52 |
| Eastbound waves? | 16 |
| Broadcast organization since 1950 | 33 |
| Ship-to-shore message | 21 |
| Ship-to-shore communication | 27 |
| Message via air waves | 21 |
| Medium weight? | 14 |
| Alternative rock band with four platinum albums | 47 |
| Cab drivers who love their Sirius? | 34 |
| Band who was the subject of the documentary "Meeting People Is Easy" | 78 |
| 2001 Grammy-winning band for the album "Kid A" | 56 |
| ... On A Friday | 15 |
| Sending an S O S, maybe | 23 |
| C.B. activity | 13 |
| Cord to plug in one's receiver to a home stereo? | 52 |
| Station-branding tune | 21 |
| One making waves in the news business? | 38 |
| Branch of medical science | 25 |
| Guy using a CB | 14 |
| Wireless operators | 18 |
| Headphone wearers | 17 |
| It distributes programming to multiple stations simultaneously | 62 |
| Emulates a bear | 15 |
| Medium for a Churchill message | 30 |
| Song played by Elvis Costello on "SNL" that led to his twelve-year ban | 80 |
| Football player studying broadcast communications? | 50 |
| A.M. or F.M. news dispatch | 26 |
| Transmits a message to Pancho and pals? | 39 |
| "Stella Dallas" and "The Shadow" | 52 |
| Ham's equipment | 19 |
| Ham's rig | 13 |
| Communications collectible | 26 |
| Old-fashioned restraint with a built-in boom box? | 49 |
| Drastic means of restraining a shock jock? | 42 |
| "Wait Wait ... Don't Tell Me!," e.g. | 50 |
| Rush jobs? | 10 |
| Data device carried by balloon | 30 |
| Quasar, for one | 15 |
| Pulsar, e.g. | 12 |
| PSA, e.g. | 9 |
| Source of many waves? | 21 |
| They have antennas | 18 |
| Theme of this puzzle, in popular parlance | 41 |
| Stern's area | 16 |
| CB's cousins | 16 |
| Dishes fit for astronomers? | 27 |
| Contact a provisions room on a shortwave? | 41 |
| Place for a vacuum | 18 |
| They're at the low end of the electromagnetic spectrum | 58 |
| They're affected by the ionosphere | 38 |
| Program carriers | 16 |
| Broadcast signal carriers | 25 |
| Mustard plants | 14 |
| They're sliced for salads | 29 |
| Salad-bowl brighteners | 22 |
| Pungent salad veggies | 21 |
| Plants of the mustard family | 28 |
| Crunchy root vegetables | 23 |
| Minnesota-based hotel chain | 27 |
| Curie discovery | 15 |
| Northwest Territories Port | 26 |
| Element discovered by the Curies | 32 |
| Curies' find | 16 |
| Curie's discovery | 21 |
| Alpha particle emitter | 22 |
| Element in uranium series | 25 |
| Decaying substances | 19 |
| Forearm bone | 12 |
| Ulna's neighbor | 19 |