AOR AR7030 Operating Manual page 34

5. R F Input
Three antenna inputs (selected by rear-panel switch) :
6. I F System
Four I F filters fitted as standard, nominal bandwidths :
Provision for two more optional filters (at 455kHz) of any bandwidth from 250Hz to 10kHz.
Passband frequency adjustable by ± 4.2kHz for all filters.
Resolved audio frequency is adjustable by ± 4.2kHz in CW and Data modes.
AGC is carrier derived with peak detector in SSB modes and mean detector in AM modes.
AGC release speed selectable : Fast / Medium / Slow. AGC can be switched off.
Manual I F gain control operates as maximum gain limit.
Squelch operation is derived from AGC level, with optional audio muting and aux relay operation.
455kHz I F output available from the AUX connector at about -20dBm / 50ohms.
7. Audio System
Entire audio path is two-channel (stereo) with mono loudspeaker output.
External LS output (disconnects internal LS) via 3.5mm mono jack : 2.2W into 8ohms.
Headphone output (disconnects internal LS) via 3.5mm stereo jack (mono compatible) : 2.5V from 100ohms.
Aux outputs (independently adjustable levels) via 8-pin DIN connector : 0 to 800mV from 1kohm.
Treble tone control :
Bass tone control :
8. Power supply
15V from external a.c adapter, current 300 to 500mA typical, 1A max. 30mA on standby.
Will operate on 12 to 15V d.c with degraded performance at 12V.
EMC compliance is not guaranteed with all types of power supply.
9. Dimensions
Case :
Overall :
Weight :
10. Sensitivity
All measurements are p.d. at 50ohm input. Figures in brackets indicate R F preamp switched on.
SSB and AM values are for 10dB S+N/N, NFM value for 12dB SINAD.
Frequency USB (2.2kHz filter)
20 kHz 1.9uV (1.4uV)
100kHz 0.73uV (0.34uV)
500kHz 0.50uV (0.18uV)
1.0MHz 0.52uV (0.19uV)
1.8MHz 0.56uV (0.21uV)
5MHz 0.50uV (0.19uV)
14MHz 0.58uV (0.23uV)
28MHz 0.60uV (0.23uV)
32MHz 0.68uV (0.24uV)
PAGE 34 AR7030 OPERATING MANUAL
50ohm unbalanced via SO-239 connector.
600ohm unbalanced via wire grip connector.
Hi-Z whip input (on SO-239) with reduced R F performance.
R F band split at 1.7MHz with high-pass and low-pass filters.
R F pre-amplifier and attenuators give +10 / 0 / -10 / -20 / -30 / -40dB R F Gain.
Switching is automatic with manual override.
2.2 kHz (default for SSB, CW and Data modes)
5.5 kHz (default for AM and Sync modes)
7.0 kHz
10 kHz (default for NFM mode)
8dB at 2kHz in 2dB steps.
9dB at 200Hz in 1dB steps.
238 x 77 x 191mm (W.H.D)
238 x 93 x 227mm (W.H.D)
2.2kg.
AM (5.5kHz filter)
0.85uV (0.33uV)
0.88uV (0.36uV)
0.95uV (0.38uV)
0.86uV (0.35uV)
1.0uV (0.42uV)
1.0uV (0.40uV)
1.1uV (0.43uV)
NFM (10kHz filter)
-
-
1.2uV (0.48uV)
-
-
-
-
-
-
-
-