RF Technology Eclipse Series Instrukcje Operacyjne Pobierz pdf (Strona 6)

Page 6 RF Technology R350/R500

2 RECEIVER INTERNAL JUMPER OPTIONS

issue 4 and lower use the LED flash rate to indicate the alarm condition. Refer to table

LED Flash Cadence Fault Condition

5 flashes, pause Synthesizer unlocked

4 flashes, pause Tuning voltage outside limits

3 flashes, pause Signal level below preset threshold (fixed link)

1 flash, pause dc supply voltage low or high

LED ON continuously External squelch is active

Table 1: Interpretations of LED flash cadence

Indication Fault condition

Flashing, 8 per second Synthesizer unlocked

Flashing, 4 per second Tuning voltage outside 2-7 Vdc

Flashing, 2 per second Signal level below preset threshold (fixed links)

Continuous dc supply voltage low or high

Table 2: Interpretations of LED flash speed, for early models.

2 Receiver Internal Jumper Options

In the following subsections an asterisk (*) signifies the standard (Ex-Factory)

configuration of a jumper.

2.1 JP1: 240 Hz Notch Filter

JP1 allows the 240Hz notch filter in the normal audio path to be bypassed.

Condition Position

Notch Filter In 1-2 *

Notch Filter Out 2-3

2.2 JP2: Audio Response

Condition Position

750 uSec. de-emphasis 1-2 *

Flat response 2-3

1 2 3 4 5 6 7 8 9 10 11 ... 25 26

Brak uwag

RF Technology Eclipse Series Instrukcje Operacyjne Strona 6