[Elecraft] KX1 current draw
Mike B
[email protected]
Sun Feb 1 17:09:06 2004
I'm curious what others have measured for current draw on their KX1
rigs. I've got SN # 421.
14.0 vdc (as displayed on KX1 & measured at PS), all TX to dummy load
tuned by ATU, trim pot set to full power. All bands show 0.2 vdc drop
on TX, per the KX1 display.
7100 kHz
RX: 38 mA (display off)
TX: 530 mA, 3.6 watts calculated from RF probe, 6.3 watts displayed
10110 kHz
RX: 40 mA
TX: 520 mA, 3.6 watts calculated, 6.3 watts displayed
14100 kHz
RX: 38 mA
TX: 725 mA, 3.6 watts calculated, 4.7 ~ 5.0 watts displayed
I'm not too concerned about the displayed power, as I haven't calibrated
it (no external watt meter available). What concerns me is 20 meters.
The manual states current draw can be up to around 700 mA, so I'm not
too far off that. However, 200 mA more draw than the other 2 bands for
the same power does concern me. I've compressed L2 slightly during
assembly to get 20 meter power out below 40 meters. Should I adjust it more?
--
73,
Mike Boice, KW1ND
Karns, TN
Behold the power of the penguin