>>> RF SWEEP/SIGNAL GENERATOR <<<
Shown in Figures 1 through 4 is a RF Sweep/Signal Generator Assembly using the LOA5C and VCOTC to produce -2.5 +/-3 dBm output at frequencies from 62.5 to 500 MHz on the front panel SMA connector. See Figures 8 through 13 for frequency and power plots.
For signal and swept frequency applications, the front panel dial is used to set the center frequency (CF). To generate a swept frequency (Delta F), connection of a triangle waveform from a function generator to the RF Sweep/Signal Generator back panel BNC connector is required. Click on this hyperlink, GA5C Delta F, for additional Delta F information.
Figure 3 shows three holes in the chassis bottom that allow access to three 2-pin headers. Installation or removal of a short is required on each header to change frequency bands and produce the Stand-By (SB) mode. The header functions are identified in Figure 6.
The GA5C is supplied with a 36 inch length power cable permanently attached for connection to the 11K18 DC power supply. See Figure 7 for details. Figure 2 shows the location on the chassis back panel of the DC power connections. +18 VDC (Green) and -18 VDC (Yellow) connect to the chassis back panel feed-thru terminals, and common ground (black) is connected to a solder lug located on the lower center of the chassis back panel.
Figure 1, Front View
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Figure 2, Back View
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Figure 3, Bottom View
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Figure 4, Internal Top View
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Figure 5, Internal Side View
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Figure 6, GA5C & 11K18 Power Supply
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Figure 7, Header Identification
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The plots of Figures 8 and 9 were generated by setting the GA5C to Band A (J1 and J2 open). Refer to Figure 7 for header location and note that SB is open.
Figure 8, GA5C Band A Output Frequency
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Figure 9, GA5C Band A Output Power
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The plots of Figures 10 and 11 were generated by setting the GA5C to Band B (a short installed on J1, and J2 open). Refer to Figure 7 for header location and note that SB is open.
Figure 10, GA5C Band B Output Frequency
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Figure 11, GA5C Band B Output Power
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The plots of Figures 12 and 13 were generated by setting the GA5C to Band C (a short installed on J1, and J2 open). Refer to Figure 7 for header location and note that SB is open.
Figure 12, GA5C Band C Output Frequency
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Figure 13, GA5C Band C Output Power
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