technical manual for sailor compact hf ssb t2130 - Gopher Proxy
technical manual for sailor compact hf ssb t2130 - Gopher Proxy
technical manual for sailor compact hf ssb t2130 - Gopher Proxy
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2 INSTALLATION MECHANICAL HF SSB TRANSMITTER T2130<br />
26190<br />
Fig. 1. Nominal values of Vbattery, V<strong>for</strong>ward maximum.<br />
The graph consists of two linear parts. Part 1 is valid <strong>for</strong> a Vbattery < 26.5 Volt and has the following<br />
equation:<br />
Vf_max1 = 0.33 * Vbattery + 0.20 (Volt)<br />
Part 2 is valid <strong>for</strong> a Vbattery >= 26.5 Volt and has the following equation:<br />
Vf_max1 = 9.00 (Volt)<br />
Vbattery is measured by the TX-processor. This is described in section 2.3.3.5. CALIBRATION OF THE<br />
T2130.<br />
Vf_max2<br />
The addition due to the result of the calibration may be either positive or negative. The principles <strong>for</strong> the<br />
calibration of the T2130 are described in section 2.3.3.5. CALIBRATION OF THE T2130.<br />
Vf_max3<br />
This addition is made in order to reduce the variations in the gain in the Power Amplifier (1) and the<br />
variations in the loss in the Output Filter (2).<br />
The addition may either be positive or negative. There are 6 different additions which may be added. One<br />
<strong>for</strong> each frequency range covered by the lowpass filters in the Output Filter Module (2). The addition <strong>for</strong><br />
the frequency range 1.6 - 2.599 MHz is always 0 as 1.6 MHz is used as a reference.<br />
Vf_max4<br />
This is in fact not an addition. It is possible to reduce the RF PEP power out of the transmitter in a few steps<br />
by means of the Service Programmes.<br />
When the power is not reduced the Vf_max4 has a value which is always higher than Vf_max5.<br />
When the power is reduced the Vf_max4 has a fixed value corresponding to the selected PEP power level.<br />
9315<br />
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