# Ehman 1998: The Big Ear Wow! Signal: What We Know and Don't Know About It After 20 Years

> Jerry R. Ehman, 1998. 2 records on Mysteries Department cite it. Primary account of the discovery and the original parameter derivation.

Source: https://mysteriesdept.com/sources/SRC0CXZ4CBG5MP2/the-big-ear-wow-signal-what-we-know-and-dont-know-about-it  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[Wow! signal](https://mysteriesdept.com/mysteries/wow-signal)Ehman 1998

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# The Big Ear Wow! Signal: What We Know and Don't Know About It After 20 Years

Jerry R. Ehman, 1998. _Big Ear Radio Observatory / NAAPO (bigear.org)_.

The discoverer's first full written account, dated 1 September 1997 and revised in 1998: how the printout was reviewed, what each column means, the signal's parameters, and the explanations considered to that date.

**Wow! signal** Web pageChecked against the original0

## What it's used for here

Primary account of the discovery and the original parameter derivation.

## Cited by on this site 2 records

[A narrowband transmission from an extraterrestrial source, either a one-off or a beacon that repeats or…](https://mysteriesdept.com/mysteries/wow-signal/answers/ANS0CXZ4TRE5DTD/a-narrowband-transmission-from-an-extraterrestrial-source)

Answer

ANS

[The Wow! signal](https://mysteriesdept.com/mysteries/wow-signal)

The mystery article

MYS

## Cite it

```
Ehman, J. R. (1998). The Big Ear Wow! Signal: What We Know and Don't Know About It After 20 Years. Big Ear Radio Observatory / NAAPO (bigear.org). https://www.bigear.org/wow20th.htm
```

[Read it free at bigear.org](https://www.bigear.org/wow20th.htm)

Key

**SRC** 0CXZ4CBG5MP2

Kind

Web page

Rights

The publisher's

Kept

29 Oct 2026, for editors

Checked

Against the published original

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

Bibliographic records are CC0. Take this one as CSL-JSON, BibTeX or RIS.

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