I found out from Bird that the 10H slug is no longer in production.
Stopped 7 years ago. Had issues with accuracy and very difficult to build.
The 25H is currently in production. Accuracy is within 10% full scale :-(
A company called REDOT make an HF meter for around 130 bucks.
Any experience
for their slugs
there is little difference between Bird and CDI units.
-Bill
-Original Message-
From: topband-boun...@contesting.com [mailto:topband-
boun...@contesting.com] On Behalf Of Jim WA9YSD
Sent: Monday, July 02, 2012 1:23 PM
To: Top Band
Subject: Topband: QRP and Bird 43
Any one out there using a Bird 43 for measuring out put power for QRP?
I have a 250H element for HF. Should I get the 50H element for HF?
I have a Ten-Tec Omni VI Plus Power turned down to minimum. with the 250H slug
I measure 5 watts, first mark from the bottom of scale. Not very accurate or
There are lower wattage slugs but for a much higher frequency range.
The 250H range is 2 to 30 mhz 160M is not quite covered but I think
is ok.
Bird make HF (H) elements at 5, 10, 25, 50, 100, 250, 500, 1000, 2500,
5000 and 1 Watts. Finding the 5, 10, or 25 Watt elements new may
be a
To: topband@contesting.com
Sent: Saturday, June 30, 2012 12:32 PM
Subject: Re: Topband: QRP and Bird 43 Watt meter help
There are lower wattage slugs but for a much higher frequency range.
The 250H range is 2 to 30 mhz 160M is not quite covered but I think
is ok.
Bird make HF (H) elements
Hi Jim
Many years ago at 4U1ITU I found the Bird 43 grossly underestimated
the power output on 160, rather embarrassing at the temple of
regulation.
Bob VE7BS
The 250H range is 2 to 30 mhz 160M is not quite covered but I think
is ok.
___
UR RST IS
Bob,
If you had a 250H that read grossly underestimated, then you had a bad element,
the line section or the meter. The usable range in NOT a square-wave.
Price W0RI
Hi Jim
Many years ago at 4U1ITU I found the Bird 43 grossly underestimated
the power output on 160, rather embarrassing at
Try Webster Communications in Rochester, Michigan. This is the old Webster
Band Spanner mobile antennas. He's still around, I saw him at Dayton this
year. He sells Bird elements.
Also, don't forget Coaxial Dynamics that sells a wattmeter that uses elements
that are compatible with Bird
and Bird 43 Watt meter help
Hi Jim
Many years ago at 4U1ITU I found the Bird 43 grossly underestimated
the power output on 160, rather embarrassing at the temple of
regulation.
Bob VE7BS
The 250H range is 2 to 30 mhz 160M is not quite covered but I think
is ok
Many years ago at 4U1ITU I found the Bird 43 grossly underestimated
the power output on 160, rather embarrassing at the temple of
regulation.
If that was the case, they had a bad slug. The rating of the Bird 43 and
standard slug is + or - 5% of full scale anywhere on the scale within the
...@contesting.com]
On Behalf Of Tom W8JI
Sent: Saturday, June 30, 2012 5:25 PM
To: topband@contesting.com
Subject: Re: Topband: QRP and Bird 43 Watt meter help
Many years ago at 4U1ITU I found the Bird 43 grossly underestimated
the power output on 160, rather embarrassing at the temple
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