[Elecraft] Bird 43 Wattmeter

2012-05-11 Thread John Cooper
I have a Bird 43 Wattmeter I refurbished ( repainted, added a new plastic carrying handle) with following slugs. Can take pics if wanted. Asking $200obo shipped to your QTH. Paypal only. 250W 50-125MHZ 500W 2-30MHZ 100W 100-250MHZ 25W 50-125MC 50W 200-500MC John Cooper WT5Y 409-499-6690

[Elecraft] Bird 43 Wattmeter calibration

2004-09-29 Thread J F
Hello All, Does anyone have any suggestions for calibrating a Bird 43 and the respective slugs? I picked up a used one and would like to check it out. Thanks, Julius n2wn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a

Re: [Elecraft] Bird 43 Wattmeter calibration

2004-09-29 Thread Stuart Rohre
There are no user adjustments on the slug or pickup of the Bird that I am aware of. You could check it against some other known standard and construct a graph paper of differences, but the Bird is good plus or minus 5 per cent about as good as it gets for RF unless you go to high dollar

Re: [Elecraft] Bird 43 Wattmeter calibration

2004-09-29 Thread marion
Hello All, Does anyone have any suggestions for calibrating a Bird 43 and the respective slugs? I picked up a used one and would like to check it out. Thanks, Julius n2wn Lab cal is done by puting power through it measured with a known standard. Adjustment is done with pot acessable

Re: [Elecraft] Bird 43 Wattmeter calibration

2004-09-29 Thread W0rw
Put a good dummy load on your transmitter, set the frequency within the range of the plug, turn on CW, and use a calibrated scope to measure the peak to peak voltage. Power = (Vp-p)^2/400 for 50 ohms. Paul w0rw ___ Elecraft mailing list Post to:

Re: [Elecraft] Bird 43 Wattmeter calibration

2004-09-29 Thread Geoffrey Mackenzie-Kennedy
- Original Message - From: J F [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, September 29, 2004 7:10 PM Subject: [Elecraft] Bird 43 Wattmeter calibration Hello All, Does anyone have any suggestions for calibrating a Bird 43 and the respective slugs? I picked up a used

RE: [Elecraft] Bird 43 Wattmeter calibration

2004-09-29 Thread Ron D'Eau Claire
Where the Birds got a great reputation as the Standard was that every time an FCC engineer would show up on site with the FCC test equipment to check the output power of a transmitter, he would be carrying a Bird. And he was a lot 'easier going' if there was a discrepancy and the maintenance

Re: [Elecraft] Bird 43 Wattmeter calibration

2004-09-29 Thread Jim Wiley
Actually, the Bird type 43 wattmeter elements (slugs) do have a calibration adjustment, but it is done at the factory. The trimmer is located underneath the frequency range power label, which is glued to the top of the element. This adjustment is done once at the factory, and unless one of