Transmitter Adjustments - Trio TS-530SP Instruction Manual

Table of Contents

Advertisement

r A D J U S T M E N T O F A N T A N D M I X C O I L S
T T R A N S M I T D R I V E C O I L A D J U S T M E N T
( R F U N I T )
( R F U N I T )
The ANT and MIX coils are included in the coil pack unit.
The drive coils are part of the coil pack unit. Set the SG
Use the 25 kHz calibrator as a signal. Connect a 50O
switch on the rear panel to OFF and center the DRIVE con-
dummy load to terminate the receiver input. Set the
trol (12 o'clock). Set the METER switch to ALC and the
D R I V E c o n t r o l t o 1 2 o ' c l o c k . A d j u s t t h e A N T a n d M I X
M O D E s w i t c h t o C W o r T U N E .
coils for maximum S meter deflection, following the fre-
With the standby switch in the SEND position, adjust the
quency table. Start with the 1.8 MHz band and then pro-
drive coils for maximum ALC deflection for each band us-
ceed to other bands. To adjust the 1Om band, use only
ing the same frequency and in the same order as for ad-
2 8 . 8 M H z i n t h e 2 8 . 5 M H z b a n d .
j u s t m e n t o f t h e A N T a n d M I X c o i l s .
During adjustment, adjust the CAR control so there is just
r ADJUSTMENT OF RECEIVE lF COILS
enough injection to swing the ALC meter.
( R F A N D I F U N I T S )
R e c e i v e a m a r k e r s i g n a l u s i n g a n y f r e q u e n c y . A d j u s t t h e
r T R A N S M I T l F C O I L A D J U S T M E N T { R F U N I T }
DRIVE and the main tuning for maximum S meter de-
Using any frequency, place the transceiver in transmit
ffection. Adjust T2 on the RF unit, L2, L5, L6, L7 and
mode in the CW or TUNE position. Adjust T4 on the RF
L 1 0 o n t h e l F u n i t f o r m a x i m u m S m e t e r i n d i c a t i o n . D O
u n i t f o r m a x i m u m A L C d e f l e c t i o n .
N o r a d j u s t L 8 '
r C A R R T E R B A L A N C E A D J U s T M E N T ( r F u N r r )
r S M E T E R A D J U S T M E N T ( l F U N I T )
W i t h a 5 0 J 2 d u m m y l o a d c o n n e c t e d t o t h e A N T t e r m i n a l ,
Disconnect the antenna with the transceiver in receive
adjust for maximum output at 14.175 MHz. Reduce mic
mode. Zero-point adjustment.
gain to zero. Set the transceiver in LSB mode and adjust
Adjust VR1 for meter pointer zero indication. lf stan-
the RF METER control on the rear panel for maximum sen-
dard SIGNAL GENERATOR (SSG) is available, adjust
sitivity. The RF meter will deflect if the carrier is unba-
VR2 so the S-meter indicates
"S-9",
at 14.175 MHz for
lanced. To balance the carrier, alternately adjust trimmer
a 4 0 d B ( 5 O p V ) s i g n a l .
T C 1 a n d t r i m p o t V R 4 u n t i l t h e m e t e r i n d i c a t e s m i n i m u m .
Switch to USB mode and if the pointer deflects, readjust
so the pointer deflects equally for both LSB and USB
6.4 TRANSMITTER ADJUSTMENTS
r ADJUSTMENT
OF SIDE TONE LEVEL (AF UNIT)
I TRANSMITTER NEUTRALIZATION
Adjust VRl to your preference.
(See Internal View Bottom)
The TS-530 requires neutralization every time the final
tubes are changed.
T u n e u p t h e T S - 5 3 O i n t o a 5 0 o h m d u m m y l o a d a t
28.5 MHz for CW operation as described in Section
4. Set the SG switch to OFF and place a sensitive RF
milli-voltmeter across the dummy load. Flip the stand-by
switch to SEND and adjust TC1 (at the bottom of the final
section) for a minimum reading on the voltmeter. After the
final section is neutralized, flip the stand-by switch to REC
a n d s l i d e t h e S G s w i t c h O n .
A receiver tuned to 28.5 MHz works very well for
neutralizing if an RF voltmeter is not available. In-
stead of tuning for a minimum voltage, tune for a min-
imum S-meter reading.
f , t a t T E .
Since the drive tube operates into a fixed load (the
finals) it is not always necessary to replace this tube
when replacing the finals.
C A U T I O N :
Neutralization of the final section should be carried
out with the chassis shield in place. Dangerous high
voltages are present in the final section when the
transceiver is turned on. Use an insulated tool to make
the adjustment.
26

Advertisement

Table of Contents
loading

Table of Contents