Campbell Scientific RF300-Series DRL VHF/UHF Radio Transceivers - Manual (Page 55)

APPENDIX H. RF300 RADIO SPECIFICATIONS
H-3
RECEIVER
Bandwidth
132 - 15- MHz: 18 Mhz with electronic tuning, 6 MHz without
retuning from 132 - 150 MHz.
150 - 174 MHz: 24 MHz with electronic tuning, 6 MHz without
retuning from 150 - 174 MHz.
Frequency Stability ±
2.5 PPM (-30
°
C to +60
°
C)
Sensitivity - 12 dB SINAD ≤
0.35
µ
V, -116 dBm psophometrically weighted
RF Input Impedance 50 ohms
Selectivity -70 dB/-60 dB (tN/t/E) for 30 kHz, 60 dB/50db (tN/t/E) for 15 kHz
Spurious and Image Rejection -70 dB
Conducted Spurious Emissions <-57dBm
Intermodulation -70 dB
FM Hum and Noise -45 dB, 30 kHz channels psophometrically weighted
-40 dB, 15 kHz channels psophometrically weighted
Receive Attack Time < 5 ms
Total Receive On Time 7 mS maximum
Audio
Distortion
<3% psophometrically weighted
Buffered Output Level 150 mV RMS nominal at 2.5V DC bias
Discriminator Output +1/-3 dB from DC to 5 kHz (reference to 1 kHz)
Output Bias 2.5V DC
±
20%
Output impedance >10k Ohms
Data Characteristics 4800/9600 BPS NRZ
RSSI 0.75V to 2.0V DC output from -120 to -60 dBm, attack time < 2 ms
TRANSMITTER
Frequency Stability
±
2.5 PPM (-30
°
C to +60
°
C)
Bandwidth 132 - 150 MHz, 18 MHz without tuning
150 - 174 MHz, 24 MHz without tuning
Maximum System Deviation 5 kHz (30 kHz), 2.5 kHz (15 kHz)
Modulation FM/DC coupled
Input Bias 2.5V DC
±
1% temperature compensated to
±
100 mV. Supplied in
Tx/Rx
Input Impedance >40k
Distortion <3% at 60% of maximum system deviation, 1 kHz tone
Capability 1.8v P-P
±
2dB produces
±
5 kHz deviation with a 1 kHz tone
Flatness ±
2 dB, DC-5 kHz at 1 kHz (Programmable to
±
0.5 dB with
diagnostic DAC
RF Power Output 1-5W
±
20% adjustable (5W at 13.3 V nominal
Deviation Symmetry 5%
RF Output Impedance 50 ohms
Duty Cycle 50% (30 sec. Max transmit)
Adjacent Channel Power -70 dB
Intermodulation Attenuation -40 dB
Spurious and Harmonic FM -20 dBm max.
FM Hum and Noise 045 dB 30 kHz, -40 dB 15 kHz