Motorola H44YXN7139AN Manuel - Page 10

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1. Model Configuration

TORQUE SPECIFICATIONS

APPLICATION

Antenna Bushing Spanner Nut

Back Shield to Frame Screws

Bottom Connector to Frame Screws

Frequency Switch Spanner Nut

All Module Screws

Power Contact Screws

Slotted-Spanner Nut (Baseplate)

Top Panel to Frame Screws

Volume Pot Spanner Nut

SECURENET RADIO FUNCTIONAL TESTS @ 7.5Vdc)

TEST

SERVICE MONITOR

REFERENCE

Set to POWER MONITOR,

FREQUENCY

FREQ. ERROR; frequency

to radio transmit frequency;

input to RF IN/OUT.

RF POWER OUT

Same as above, except set

monitor to measure POWER.

VOICE

Same as above, except set

MODULATION

monitor to measure

DEVIATION.

CODED VOICE

Load monitor with same

MODULATION

key used in radio. Select

proper algorithm and

DEVIATION test with

SECURE COM TEST

MENU on screen.

RATED AUDIO

Set to GENERATOR;

frequency to radio receive

frequency; 1 mV rf output;

1kHz modulation; 3kHz

deviation.

12dB SINAD

Same as above except set

TORQUE

(IN.LBS.)

(N-m)

2.27

> 2.8

0.28

> 2.8

0.28

0.91

> 2.8

0.28

> 2.8

0.28

- 6

0.45

0.23

0.91

TRANSMITTER PERFORMAN CE

RADIO

TEST BOX

Set to channel

PTT Continuous (during

corresponding to

performance check).

frequency of test.

Set to channel

PTT Continuous (during

corresponding to

performance check).

frequency and power

level under test.

Set to channel

Input a 1kHz tone @

≈50 mVrms to radio's

corresponding to

frequency and power

microphone (through test

level under test.

box). PTT continuous

Set to channel

Same as above.

corresponding to freq.

and power level under

test. With key loaded,

set radio to coded mode.

RECEIVE PERFORMANCE

Set to open squelch.

Speaker selector on

position "A"; switch to

load.

Set to open squelch

Set to speaker load

TORQUE

BIT NO.

6680370B90

6680321B79

6680370B88

6680321B79

6680370B89

6680321B79

6680370B88

COMMENTS

Frequency error =

≤450 Hz (vhf)

≤750 Hz (uhf)

≤150 Hz Mid-Band)

RF power output ≥ published

specs for channel under test.*

Listen for 1kHz tone from

monitor. Deviation should be

≥4.0kHz and ≤5.0kHz -

(for 25kHz)

≥3.0kHz and ≤4.0kHz -

(for 20kHz)

Listen for decoded 1kHz

tone from monitor. Deviation

should be ≥3.5kHz and

≤4.5kHz. (for 25kHz)

≥2.5kHz and ≤3.5kHz -

(for 20kHz)

Verify that audio is present;

adjust radio volume control

to read 3.7 to 3.9 Vac on

DVM.

Reduce rf level to achieve