Calibration files - not radioshack

**littomalt** · **03-30-09, 10:41 AM**

Hi

I have this soundlevel meter: Decibel DB 7 Range Sound Level Audio Noise Meter Q22.

I don't have calibrationfiles. Can sombody help me with calibration file?

LoA

**brucek** · **03-30-09, 11:17 AM**

Looks a lot like the old Radio Shack analog meter, but you have no way of knowing which capsule it uses. I've not seen this one before.

brucek

**littomalt** · **04-01-09, 10:55 AM**

Quote:

brucek wrote:

..you have no way of knowing which capsule it uses. I've not seen this one before.

brucek

Hi Brucek

What is capsule?

Is it possible to make calibration data in any way, low cost...

LoA

**brucek** · **04-01-09, 11:45 AM**

Quote:

What is capsule?

The actual microphone element.

Quote:

Is it possible to make calibration data in any way

Not unless you have a graph of its response, there's really no way.

If you just want to use it with REW to make relative measurements (as opposed to absolute), then you could use the old RadioShack cal file. By this I mean, it can be used to determine if a particular location for your subwoofer was better or worse than another spot.

brucek

**brandonnash** · **04-01-09, 03:03 PM**

I have that same meter. Got it before I knew there were Cal files for the radioshack meter.

I would also like the files if anyone finds them.
Posted via Mobile Device

**littomalt** · **04-02-09, 02:58 PM**

OK here is some info about the meter:

Inside
Maybe firm logo=> Pb with a \ going over

Notation on board:
SWZ-1
94v-0
0823

E301791
Mode:ssj
V-1.3
DATE:2005.08.30

Notation on MIC
EPE (2 pins)

Chip:
C455B
STe 7742

**littomalt** · **04-02-09, 03:02 PM**

Forgot picture

I have problem uploading the picture. It is probably bacuse i'm new. I try later and asksk politely to not get banned.

LoA

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