HydroLynx Systems 50386R, Instruction Manual

Hydro

Lynx

Systems, Inc. 

!

950 Riverside Pkwy., Suite 10 

!

West Sacramento, CA 95605

Phone 916-374-1800 

!

Fax 916-374-1877 

!

Email hydro@hydrolynx.com

Hz

W

±

kHz

kHz

kHz

kHz

:

V

Vpp

Incoming Radio Acceptance Procedure

1. GENERAL PROCEDURE

Document No. A100913-1

This is a generic procedure for accepting a new or repaired radio. Separate sections divide the procedure into receiver and transmitter
functions. If the radio requires tuning, refer to the manufacturer's radio service manual. When HydroLynx specifications are
unavailable, use the manufacturer's radio specifications. Record the test results on this sheet. Record general information here:

Inspector

Chassis serial number

Model Radio manufacturer

Frequency

Mhz

Date

Radio serial number

Radio model number

Deviation

±kHz

Power

W

2. REQUIRED EQUIPMENT

G

radio service monitor

G

SINAD meter

G

oscilloscope

G

miscellaneous tuning wands

3. TRANSMITTER
Frequency Error

G

Key the transmitter with no tone in. Observe frequency error:

G

Limit frequency error 

#

±500 Hz:

Yes 

G

No 

G

Power Out

G

Key the transmitter. Observe power out:

G

Limit within specifications:

Yes 

G

No 

G

Deviation

G

Inject tone as specified by the HydroLynx model or radio specification. Observe deviation (adjust as required):

G

Limit within specifications:

Yes 

G

No 

G

4. RECEIVER
Frequency error and selectivity

G

Inject carrier frequency: generator level = 10 

:

V and 1 

:

V

tone

= 1 kHz ±0.005 kHz

deviation

= ±3 kHz

G

Increase carrier frequency, 1 kHz steps; observe SINAD meter. Record number of steps SINAD is above 12 dB:

G

Decrease carrier frequency, 1 kHz steps; observe SINAD meter. Record number of steps SINAD is above 12 dB:

G

Subtract these two values and enter the difference:

G

Limit the recorded difference 

#

5 kHz:

Yes 

G

No 

G

Sensitivity

G

Inject carrier frequency; reduce the generator level until 12 dB SINAD is observed:

G

Limit generator level 

#

0.5 

:

V at 12 dB SINAD

Yes 

G

No 

G

Squelch

G

Adjust the squelch threshold at generator level which produces 12 dB SINAD.

G

Limit unsquelch and squelch when generator level is slightly increased and decreased:

Yes 

G

No 

G

Tone Out

G

Inject carrier frequency: generator level = 10 

:

V

tone

= 2 kHz ±0.2 kHz

deviation

= ±3 kHz or work order specification

G

Observe the tone output with the oscilloscope and adjust to 0.8 Vpp (or specified).

G

Limit within specifications:

Yes 

G

No 

G