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Re: New Toy


 

Jerry

This lower power reading on 40M is not new.? It was discussed a
month or so ago but I do not remember the outcome.

Arv
_._


On Sun, May 16, 2021 at 11:54 AM jerry@... <jerry@...> wrote:
All,

? ?The other day I lost my mind and ordered a Bird 4410a wattmeter off
Ebay.? On the 10W scale, feeding into a good VHF dummy load, I am
measuring RF output from the uBITX while sending a string of Dahs:

80M ( 3800kHz ) - 4.4W
40M ( 7150kHz ) - 1.9W
30M ( 10125kHz ) - 3.6W
20M ( 14175kHz ) - 2.8W
15M ( 21225kHz ) - 3.2W
10M ( 28.8MHz? ) - 1.4W

I was surprised by the low reading on 40M.
Scanning up the band:
7.00001 MHz - 2.3W
7.1MHz - 2W
7.2MHz - 1.8W
7.3MHz - 1.6W

... Isn't this supposed to be a 10W radio?? Feeling the RF output
transistors, they're both equally warm.

? ? ? ? ? ? ? - Jerry KF6VB





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