Channel

N

First LO, MHz

TX, MHz

RX, MHz

1

1346

826.9842

908.9136

910.1424

2

1352

830.6688

912.6000

913.8288

3

1358

834.3552

916.2864

917.5152

4

1365

838.6560

920.5872

921.8160

Note:

1. Second LO = 81.9312 MHz

2. Reference Divider = 25

3. Phase Detector = 614.4 kHz

4. First IF = 83.160 MHz

5. Second IF = 1.229 MHz

6. Synthesizer PLL Bandwidth = 80 kHz nominal

7. Frequency Accuracy =

±3.5 ppm

(including temperature 0° to 50°C)

8. Switching Time = 2.2 ms nominal, Ch 1 to Ch 4

Type

PM, inside the phase lock loop

Bandwidth

200 Hz to 70 kHz, -3 dB

Sensitivity

20 cycles/V nominal

Distortion

-30 dBC max. for 10 cycle peak deviation at 1 kHz rate

Transmit Modulation Input

Type

BPSK

Bandwidth

30 MHz

Sensitivity

PN Enable Input

+5V = spread, high Z = CW

Carrier Suppression

-15 dBc max.

Code Leakage

-30 dB max. (for baseband modulation signal of better quality)

PN Input Load Resistance

1K nominal

Spreading Input

Zo

50 ohms nominal

VSWR

2.5:1 max., 902-928 MHz

T/R Switch

Low = transmit, CMOS compatible. Isolation 35 dB nominal

Antenna Port

AT48810

3-3