Sailor COMPACT HF SSB T2130 User Manual

2 INSTALLATION MECHANICAL HF SSB TRANSMITTER T2130
When the lowest value of resonance has been tested the next higher value of load is switched in and all
the resonance values are tested again.
The variable capacitor is activated by the tune motor MO1. The motor may run at high speed or al low
speed. In the following mentioned as ‘high tune speed’ and ‘low tune speed’.
With the tune speed high the SWR is measured and compared continuously to the following limits and
different actions may take place:
1.0 < SWR <= 1.5.
The actual combination of resonance and load is kept and the tune speed is changed to low.
The variable capacitor is run through its variation range again. When the SWR limit is passed
again, the tune motor is stopped immediately and the tuning is accepted. The found combination
of resonance and load and the SWR limit are saved in the EEPROM’s for a later retune
procedure.
1.5 < SWR <= 2.0
The actual combination of resonance and load is remembered by the processor in order to tune
with the low speed later.
2.0 < SWR <=2.5.
The actual combination of resonance and load is remembered together with a flag indicating that
the SWR is in the range 2.0 < SWR <= 2.5 by the processor in order to tune with the low speed
later.
3. If no combination could give an SWR <= 1.5 the remembered combinations giving an SWR <= 2.0 are
tested at low tune speed.
The SWR is measured and compared to the following limits and different actions take place:
1.5 < SWR <= 1.7.
The tune motor is stopped immediately and the tuning is accepted.
The found combination of resonance and load and the SWR limit are saved in the EEPROM’s
for a later retune procedure.
4. If no combination could give an SWR <= 1.7 the remembered combinations giving an SWR <= 2.0 are
tested again at low tune speed.
The SWR is measured and is now compared to the following limit:
1.7 < SWR <= 2.0
The tune motor is stopped immediately and the tuning is accepted.
The found combination of resonance and load and the SWR limit are saved in the EEPROM’s
for a later retune procedure.
5. If no combination could give an SWR <= 2.0 the remembered combinations giving an SWR in the range
2.0 < SWR <= 2.5 are tested at low tune speed.
The SWR is measured and is compared to the following limit:
SWR <= 2.5.
The tune motor is stopped immediately and the tuning is accepted.
6. If no combination could give an SWR <= 2.5 the AT2110 relays are set to feed the RF-signal straight
through the coupler and this is then accepted as an uptune. When the transmitter is keyed the RF-
power is reduced accordingly to the actual SWR.
9315
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Sailor COMPACT HF SSB T2130 Specifications

General

Brand	Sailor
Model	COMPACT HF SSB T2130
Category	Control Unit
Language	English