Subscriber Discussion

What Is The Difference Between AHD VS HVR VS SDVR?

UD
Undisclosed Distributor #1
•Sep 20, 2015

What's the difference between AHD , HVR AND SDVR PLEASE

JH
John Honovich
•Sep 20, 2015
IPVM

AHD is a type of HD analog transmission. See: The Company Behind AHD - Nextchip. All HD analog is new within the last three years. AHD's main competitors are TVI and CVI.

HVR probably refers to a hybrid DVR, sometimes called HDVR. The implication is that it can support / record analog and IP cameras.

SDVR is not a term I have ever heard before but found an eBay marketer promoting here. Just seems to be a fancy / company specific term for HVR / HDVR.

Two things to keep in mind for hybrid recorders:

  • Just because a recorder supports IP cameras and NTSC / PAL cameras does not mean it can record any HD analog ones.
  • Even if a hybrid recorder supports one variant of HD analog (e.g., AHD) does not mean that it supports any others (like TVI and CVI).

Let us know if we can provide more feedback.

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