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Receiver Sensitivity
Check the Carrier Level Indicator readings per
Table 7-5.
7.3.4
Receiver Output Module Tests
Preliminary Steps
1. Connect a power supply source (48, 125, or
250Vdc) to the following Rear Panel
terminals (with reference to TB7-2):
• Receiver Output #1: TB1-1 (+)
• Receiver Output #2: TB1-4 (+)
2. Connect the Signal Generator (H/P 3325A) to
the chassis at the UHF RF Input jack (J1) on
the rear panel.
3. Place the Receiver Output Module on an
Extender Board (see Figure 4-1).
Receiver Output Test Procedure
1. Set the Signal Generator to 250 kHz, at a level
between 150 and 250mV rms (The DETECT
LED should be on.)
2. Measure the voltage level at TB1-2 with
TB7-2 as a reference. This voltage should be
the same as the power supply source (48, 125,
or 250Vdc). Also, measure the voltage level at
TB1-5 with TB7-2 as a reference. This should
be the same as the power supply source (48,
125, or 250Vdc).
3. Remove the input signal, ensuring that the
output level drops out.
4. Load down the output by connecting the
appropriate resistor as shown in table 7-6.
5. Insert a current meter (Fluke 75 or equivalent)
in the circuit by connecting the meter across
the open switches on the card extender for
pins C/A 16 for OUTPUT #1 and C/A 22 for
OUTPUT #2.
6. Current readings should be 16 to 30 mAdc for
a 2200
Ω
resistor and 160 to 230 mAdc for a
25
Ω
resistor.
7. Disconnect the Signal Generator from the jack
(J1) on the rear panel.
8. Re-install the Keying Module.
October 2003
Page 7–5
Chapter 7. Design Verification Tests
7
(mV)
CLI
LEDs on Module
LEDs ON
LEDs on Fixture
Detect/Margin
Detect/Margin
11.24
_____dB
(-20 +/- 2dB)
OFF/OFF
OFF/OFF
353
_____dB
(+10 +/- 2db)
ON/ON
ON/ON
20
_____dB
(-15 +/- 2dB)
ON*/OFF
ON*/OFF
35.3
_____dB
(-10 +/- 2dB)
ON/OFF
ON/OFF
63.3
_____dB
(-5 +/- 2dB)
ON/OFF
ON/OFF
112.2
_____dB
(0 +/- 2dB)
ON/ON
ON/ON
200
_____dB
(+5 +/- 2dB)
ON/ON
ON/ON
Table 7–5. Level Detector and CLI Test Procedure Specifications.
*Only lights at this level
Содержание TC-10B
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Страница 22: ...Page 1 10 October 2003 TC 10B System Manual Technologies Inc Technologies Inc USER NOTES...
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Страница 53: ...3 Figure 3 3 TC 10B Mechanical Outline Drawing 1354D48...
Страница 56: ...Page 3 12 October 2003 TC 10B System Manual Technologies Inc Technologies Inc USER NOTES...
Страница 58: ...Page 4 2 October 2003 TC 10B System Manual Technologies Inc Figure 4 1 Extender Board...
Страница 90: ...Figure 9 2 TC 10B TCF 10B Power Supply Component Location 1617C38...
Страница 91: ...9 Figure 9 3 TC 10B TCF 10B Power Supply Schematic 1617C39...
Страница 92: ...Page 9 6 October 2003 TC 10B System Manual Technologies Inc Technologies Inc USER NOTES...
Страница 97: ...10 Figure 10 2 TC 10B Keying PC Board 1495B69...
Страница 98: ...Figure 10 3 TC 10B Keying Schematic 1606C29...
Страница 104: ...Figure 11 3 TC 10B TCF 10B Transmitter PC Board 1500B10...
Страница 106: ...Figure 11 5 TC 10B Transmitter Block Diagram 1610C09...
Страница 107: ...11 Figure 11 6 TC 10B Optional TTL Transmitter Component layout CC20 TXMA1 001...
Страница 112: ...Figure 12 2 TC 10B TCF 10B 10W PA PC Board 1495B73...
Страница 113: ...12 Figure 12 3 10W PA Schematic 1606C33...
Страница 114: ...Page 12 6 October 2003 TC 10B System Manual Technologies Inc Technologies Inc USER NOTES...
Страница 117: ...13 Figure 13 2 TC 10B TCF 10B RF Interface PC Board 1609C32...
Страница 118: ...Figure 13 3 TC 10B TCF 10B RF Interface Schematic 1609C32 2...
Страница 126: ...Page 14 8 October 2003 TC 10B System Manual Technologies Inc Technologies Inc USER NOTES...
Страница 132: ...Figure 15 3 TC 10B Receiver Output PC Board CC50RXSM...
Страница 133: ...15 Figure 15 4 TC 10B Receiver Output Schematic CC30RXSM...
Страница 134: ...Page 15 8 October 2003 TC 10B System Manual Technologies Inc Technologies Inc USER NOTES...
Страница 178: ...Page 16 44 October 2003 TC 10B System Manual Technologies Inc Technologies Inc USER NOTES...
Страница 184: ...Figure 17 3 Voice Adapter Module PC Board C020VADMN...
Страница 189: ......
Страница 190: ...Technologies Inc...