R.V.R. Elettronica PTX30 UHT/S3, User Manual

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PTX30 UHT /S3
15 / 36 User Manual Rev. 5.0 - 10/12/2001
6 External Description
This chapter describes the elements of the front and rear panels of the PTX30
UHT /S3.
6.1 Front Panel
Figure 6.1
[1] BAR/DOT Selector of operation mode (BAT/DOT) for modulation meter.
[2] STEREO/MONO-MPX Selector for “STEREO” operation or “MONO/MPX”.
[3] MODULATION Modulation meter by “LED BAR”.
[4] 10%-100% Expansion of modulation meter scale
Pos. 10% - Full scale shows 10%
Pos. 100% - Full scale shows 100%
[5] MODE SELECTOR Pushed button: “STEREO MODE OPER.”.
Pushed button: “MONO MODE OPER.”.
[6] L-MPX/R-MONO IN. LEVEL
Continuosly adjustable input level from -12 to +9 dBm.
[7] INPUT LEVEL Input attenuator in five steps from -9 to +6dBm.
[8] DOWN Control frequency display. A momentary push causes the digit
to go down 10KHz at a time.
[9] ENTER Eneters the frequency on the displayinto the microprocessor
and memory. Once entered, the frequency is stored until a
panel, even if the power is turned off fro several days.
[10] PWR ADJ A ten turn control which controls the power output of exciter.
Once set the power remains at that level due to AGC action.
[11] UP Controls the display frequency in the same way as the “DOWN”
button except that the frequency goes up in 10 KHz steps.
[12] FREQUENCY DISPLAY Frequency indicaror.
[13] METER SWITCH Pushing the switch each time will light one led at a time in an
upward direction.
[14] LEDS Light indicator indicating which parameter of the exciter is being
dispalyed on the analog meter.
[15] SWR ALARM If this indicator lights, it means that the exciter has shut down
due to a high VSWR condition on the output.
[16] UNLOCK This indicator will light when when the VCO is not locked to the
reference frequency. Power output will also decrease to zero in
this condition.