Ken -
Re-read that page...... The Carrier Balance is adjusted in CW MODE,
BUT with PTT closed instead of the KEY so the SIDETONE is NOT generated.
This puts the Carrier Oscillator within the LSB passband so as to have a
larger output to null.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line& TR-4/C Service Supplement CDs
<www.k4oah.com>
Ken Winterling wrote:
Frank,
The carrier balance adjustment is made in SSB, not CW. See page 15
of the T-4XB manual under "CARRIER BALANCE ADJUSTMENT".
Ken, WA2LBI
On Mon, Mar 22, 2010 at 09:42, iz oos <izo...@gmail.com
<mailto:izo...@gmail.com>> wrote:
Hi!
I did my homework! Indeed, the carrier oscillator crystal frequency
was not exactly set to 5.645 MHz, mainly due to C2 which was offest by
30 degree and a bit also to T14 which was not completely peaked.
Switching sideband switch back and forth it was easy to note
difference in plate current and Adjust C-2 to make the current and
output of the sidebands equal. Current was about 0.8 and output zero
or close to zero.
Plugging the mike, both sidebands now sound much more the same,
however I had still to rebalance the carrier balance control which was
set fully counter clockwise. Setting the function switch to CW and and
PTT on mic ON the relative output meter stays at zero for whatever
adjustment of the carrier balance control !!!! So, I CAN'T rebalance
the Carrier Balance control !!!!
Why is that???
73,
Frank IZ2OOS
2010/3/21 Garey Barrell <k4...@mindspring.com
<mailto:k4...@mindspring.com>>:
> Frank -
>
> Start with the Carrier Oscillator, Filter Match & Balanced Modulator
> alignment in Section VII, Section B. The idea is to get the Carrier
> Oscillator "centered" in the valley between the two filters as
shown at "0"
> on Page 37.
>
> 73, Garey - K4OAH
> Glen Allen, VA
>
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