---
kind: "section"
citation: "47 C.F.R. § 5.101"
title: "47"
number: "5.101"
heading: "Frequency stability."
url: "https://uscodex.org/cfr/47/5.101"
---

# §5.101. Frequency stability.


Experimental Radio Service licensees shall ensure that transmitted emissions remain within the authorized frequency band under normal operating conditions: Equipment is presumed to operate over the temperature range −20 to + 50 degrees Celsius with an input voltage variation of 85% to 115% of rated input voltage, unless justification is presented to demonstrate otherwise.


## Notes

### Authority

Authority: 47 U.S.C. 154, 301, 302, 303, 307, 336.

### Source

Source: 78 FR 25162, Apr. 29, 2013, unless otherwise noted.