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Re: Bird Meter Calibration
To: CRTech <crtech@crtech.org>
Subject: Re: Bird Meter Calibration
From: John Stortz <ka4flx@gmail.com>
Date: Sat, 1 Jul 2017 02:07:18 -0400
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Are you relying on the Bird for remote metering? We used one mainly for high VSWR alarms & protection. Bird told me they couldn't guarantee a calibration unless I sent in the whole thing, including the line section. There was nothing to replace the line section, so unable to send in for calibration.

A Bird Wattmeter is really only measuring current. Current is related to power, of course, assuming the impedance is exactly 50 Ohms, or whatever original specs might be.

John S.

*Politics is the gentle art of getting votes from the poor and campaign funds from the rich, by promising to protect each from the other.
*~Oscar Ameringer~

On Fri, Jun 30, 2017 at 11:55 AM, Steve Tuzeneu <stuzeneu@gmail.com> wrote:
Hey Guys:

I'm looking for your thoughts about how often you get your Bird (in line) watt meter calibrated at your transmitter site(s).

The factory says they recommend sending in the meter once a year for calibration.  We don't do it quite that often, but I don't want to say until I read your thoughts.

How long do you wait before sending yours in for calibration? And why?


Steve Tuzeneu,  CBT 
Network Staff Engineer
BBN Radio Network
P.O. Box 7300
Charlotte , NC 28241-7300 
704-523-5555 Extension 138
Member: Society of Broadcast Engineers
G.R.O.L./N1XXE-Extra Class Operator

References: Bird Meter Calibration
(Steve Tuzeneu <stuzeneu@gmail.com>, 30 Jun 2017 15:55:28 -0000)
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