ALIGNMENT PROCEDURE
6-7
Squelch Sensitivity
5. Increase the signal generator output from zero and
note the SINAD when unsquelching occurs. It
should be approximately 8 dB.
Audio Power Output and Distortion
CAUTION:
Test equipment connected across speaker
leads must be floating because grounding either lead
could damage the radio. This does not apply to the test
cable audio jack (see following information).
The internal speaker and external speaker-
microphone are driven by separate audio amplifiers as
follows:
Internal Speaker -
The internal speaker does not have
an external output. To measure the power and distor-
tion of its amplifier, the meter must be connected
across the speaker terminals (Extension Test Cable,
Part No. 023-5100-955, is then be required to operate
the radio). This output is rated for 0.5 watt (2.83 V
rms) across a 16-ohm load and distortion should be
less than 5%.
External Speaker-Mic -
The external speaker-micro-
phone amplifier outputs are pins 2 and 6 of the acces-
sory connector. This output is rated for 0.4 watt (2.52
V rms) across a 16-ohm load.
Test Cable Audio Jack -
This jack provides a single
ended low-level audio output by tapping one of the
external speaker-mic outputs. This allows the sleeve
side of this jack to be connected to ground, but it does
not provide the high-level output required to check
rated audio power output.
6.6.3 TRANSMITTER PERFORMANCE TESTS
1. Connect a wattmeter and dummy load to the antenna
jack. Monitor the transmit signal with a communica-
tion monitor.
Transmit Frequency
2. Monitor the transmit frequency and at room temper-
ature it should ±100 Hz. At other temperatures (–30
to +60° C), it must be within 2.5 PPM (VHF/UHF)
or 1.5 PPM (800 MHz). This also checks the receive
frequency.
Transmit Power
3. Transmit power should be as follows in the high and
low power modes:
VHF Models -
5W high, 1W low
UHF Models -
4W high, 1W low
700 MHz Mod. -
2.5W high/TA, 1W low
800 MHz Models -
3W std/2.5W TA high, 1W low
Tolerance for all: –0W, +0.5W high, ±0.1W low
Transmit Modulation
4. Monitor the transmit modulation with a modulation
meter. Speak into the microphone with a normal
voice. Modulation should be approximately as
follows with no CTCSS/DCS signaling present:
12.5 kHz Channels -
1.4 kHz
25 kHz Channels -
3.4 kHz
800 MHz NPSPAC Channels -
2.5 kHz
5. Select a channel programmed with Call Guard
(CTCSS/DCS) signaling. Maximum total Call
Guard and voice modulation should be approxi-
mately as follows:
12.5 kHz Channels -
2.3 kHz
25 kHz Channels -
4.7 kHz
800 MHz NPSPAC Chan -
3.8 kHz
Содержание 5100 Series
Страница 76: ...PARTS LIST 7 20 MP032 MP030 A200 Part of A200 Part of A200 MP031 MP033 MP034 A100 A030 EP031 J4 J3 EP030 6 ...
Страница 85: ...8 9 Version C Board see Section 1 13 VHF RF BOARD VER C LAYOUT ...
Страница 87: ...8 11 VHF RF BOARD SCHEMATIC VER B PAGE 2 OF 3 ...
Страница 88: ...8 12 VHF RF BOARD SCHEMATIC VER B PAGE 3 OF 3 ...
Страница 95: ...8 19 BOTTOM VIEW TOP VIEW Version C Board see Section 1 13 UHF RF BOARD VER C LAYOUT ...
Страница 105: ...8 29 BOTTOM VIEW TOP VIEW 700 800 MHZ RF BOARD VER C LAYOUT Version C Board see Section 1 13 ...
Страница 112: ...8 36 SEM Module 5500 120 LOGIC BOARD VER C SCHEMATIC PAGE 5 OF 11 ...
Страница 113: ...8 37 Analog Switch 5500 120 LOGIC BOARD VER C SCHEMATIC PAGE 6 OF 11 ...
Страница 118: ...8 42 5500 120 LOGIC BOARD VER C LAYOUT BOTTOM VIEW TOP VIEW Version C Board see Section 1 13 ...
Страница 127: ...8 51 5100 160 LOGIC BOARD VER B TOP VIEW 5100 160 LOGIC BOARD VER B BOTTOM VIEW Version with Motorola UCM ...
Страница 143: ...8 67 5500 420 USER INTERFACE BOARD VER C TOP VIEW Version C Board see Section 1 13 ...
Страница 144: ...8 68 5500 420 USER INTERFACE BOARD VER C BOTTOM VIEW ...
Страница 147: ...8 71 5100 410 USER INTERFACE BOARD VER A TOP VIEW Version w o encryption module Version A Board see Section 1 13 ...
Страница 148: ...8 72 5100 410 USER INTERFACE BOARD VER A BOTTOM VIEW Version w o encryption module ...
Страница 151: ...8 75 5100 450 USER INTERFACE BOARD VER B TOP VIEW Version with EFJ SEM Version B Board see Section 1 13 ...
Страница 152: ...8 76 5100 450 USER INTERFACE BOARD VER B BOTTOM VIEW Version with EFJ SEM ...
Страница 155: ...8 79 5100 460 USER INTERFACE BOARD VER B TOP VIEW Version with Motorola UCM Version B Board see Section 1 13 ...
Страница 156: ...8 80 5100 460 USER INTERFACE BOARD VER B BOTTOM VIEW Version with Motorola UCM ...
Страница 171: ...9 14 OBSOLETE VERSION 5100 410 USER INTERFACE BOARD VER A TOP VIEW Version A Board see Section 1 13 Revision 6 Board ...
Страница 172: ...9 15 OBSOLETE VERSION 5100 410 USER INTERFACE BOARD VER A BOTTOM VIEW Revision 6 Board ...
Страница 173: ...Part Number 001 5100 0017CD 12 04hph Printed in U S A ...