Sailor COMPACT HF SSB T2130, Technical Manual

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2 INSTALLATION MECHANICAL HF SSB TRANSMITTER T2130
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Fig. 1. Nominal values of Vbattery, Vforward maximum.
The graph consists of two linear parts. Part 1 is valid for a Vbattery < 26.5 Volt and has the following
equation:
Vf_max1 = 0.33 * Vb 0.20 (Volt)
Part 2 is valid for a Vbattery >= 26.5 Volt and has the following equation:
Vf_max1 = 9.00 (Volt)
Vbattery is measured by the TX-processor. This is described in section 2.3.3.5. CALIBRATION OF THE
T2130.
Vf_max2
The addition due to the result of the calibration may be either positive or negative. The principles for the
calibration of the T2130 are described in section 2.3.3.5. CALIBRATION OF THE T2130.
Vf_max3
This addition is made in order to reduce the variations in the gain in the Power Amplifier (1) and the
variations in the loss in the Output Filter (2).
The addition may either be positive or negative. There are 6 different additions which may be added. One
for each frequency range covered by the lowpass filters in the Output Filter Module (2). The addition for
the frequency range 1.6 - 2.599 MHz is always 0 as 1.6 MHz is used as a reference.
Vf_max4
This is in fact not an addition. It is possible to reduce the RF PEP power out of the transmitter in a few steps
by means of the Service Programmes.
When the power is not reduced the Vf_max4 has a value which is always higher than Vf_max5.
When the power is reduced the Vf_max4 has a fixed value corresponding to the selected PEP power level.
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