Add max_frequency_offset()

[mhostetter]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 94.44444% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 78.12%. Comparing base (a413cc6) to head (3adba0c).

Files	Patch %	Lines
src/sdr/_link_budget/_integration.py	94.44%	1 Missing ⚠️

Additional details and impacted files

@@                Coverage Diff                @@
##           release/0.0.x     #304      +/-   ##
=================================================
+ Coverage          78.03%   78.12%   +0.08%     
=================================================
  Files                 57       57              
  Lines               3392     3410      +18     
=================================================
+ Hits                2647     2664      +17     
- Misses               745      746       +1     

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