Hi Julia -
Running the Transmit Gain procedure (page 33 in my manual) is
the usual first thing to do when the power output seems "wanky".
The general recommendation for drive level from the computer is
4 bars with the 5th flashing. If the drive level is too low, the
output power will start off low and then build to the power
output setting on the radio. If the drive level is 4 bars with
the 5th flashing, the radio will start close to the power output setting.
If the drive level is too high, you will drive the radio into
using automatic level control which will produce a distorted
signal on the air.
If the output power is stablising at levels lower than the
setting, try the Transmit Gain calibration procedure.
73 Bill AE6JV
On 3/4/21 at 2:35 PM, ju...@juliatuttle.net (Julia Tuttle) wrote:
I'm trying to get my KX3 set up for FT8 and JS8call and all those fun
modes, and I'm running into a bit of trouble with setting the audio
interface volume and mic gain.
The KX3 manual suggests aiming for no more than 3-4 bars of ALC indication
to prevent distortion, but if I do this, I don't always get full output
power.
Initially I chalked this up to the firmware reducing output power from
heat, but it's proportional: if I ask for 10 W, I get 7; if I ask for 5, I
get 3, and so on.
It also doesn't always happen!
Any ideas?
73s,
Julie
-------------------------------------------------------------------------
Bill Frantz | Airline peanut bag: "Produced | Periwinkle
(408)348-7900 | in a facility that processes | 150
Rivermead Rd #235
www.pwpconsult.com | peanuts and other nuts." - Duh |
Peterborough, NH 03458
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