Grecom PSR-300 - Page 59

59
AM:
25–54 MHz ................................................................................................. 1 μV
108–136.99166 MHz .................................................................................. 1 μV
137–174 MHz .......................................................................................... 1.5 μV
216.0025–224.975MHz ........................................................................... 1.5 μV
225-299.975 MHz ......................................................................................2 μV
300-405.975 MHz ......................................................................................3 μV
406–512 MHz .............................................................................................2 μV
764–960 MHz .............................................................................................2 μV
1240–1300 MHz .........................................................................................3 μV
Selectivity:
25 – 27.995 MHz at AM mode
-6 dB .................................................................................................. +/-4 kHz
-50 dB ................................................................................................ +/-6 kHz
All frequencies at AM and FM mode except 25 – 27.995 MHz at AM
-6 dB .................................................................................................. +/-8 kHz
-50 dB .............................................................................................. +/-17 kHz
Spurious Rejection (at 154.1 MHz FM) .................................................. 40 dB
Scanning Rate ............................................... Up to 60 Channels per Second
Search Rate ......................................................... Up to 78 Steps per Second
Delay Time ....................................................................................... 2 seconds
Intermediate Frequencies (IF):
1
st
................................................................................................... 380.8 MHz
2
nd
..................................................................................................... 21.4 MHz
3
rd
........................................................................................................455 kHz
Priority Sampling ............................................................................. 2 seconds
Operating Temperature ............................................................... -14 to 140° F
(-10 to 60° C)
IF Rejection
380.8 MHz at 154.1 MHz ........................................................................ 60 dB
21.4 MHz at 154.1 MHz ........................................................................ 100 dB
Squelch Sensitivity:
Threshold (FM and AM).......................................................................... 0.5 μV
Tight (FM) ............................................................................................... 25 dB
Tight (AM) ............................................................................................... 20 dB
Antenna Impedance .......................................................................... 50 Ohms
Audio Output Power (10% THD)......................................................... 170 mW