ACOM 1003
Amateur Base Station Linear Amplifier
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ACOM 1003: 1000 W tube amplifier for 160-6 m with a 3CX800A7 triode and selectable class AB2 / class B operation.
Drive power: 50-80 W for rated output; RF gain 12 dB ±1 dB
Continuous carrier above 5 minutes (RTTY etc.) requires the external auxiliary fan to be mounted
IMD3 better than 34 dB relative to one of two tones (40 dB below PEP); harmonics: better than 50 dB (1.8-29.7 MHz), 70 dB (50-54 MHz)
Hum and buzz: better than 27 dB below rated output or 4.5% AM
Input: factory-tuned low-pass filters, SWR not more than 1.3 on every band 160-6 m; bypass SWR not more than 1.1
Output match: SWR up to 3 at any phase angle; reduce drive above SWR 3 to keep reflected power under 250 W
Coverage notes: 60 m 5.250-5.450 MHz, 6 m 50-54 MHz; check regional band plans
FCC ID 2AJXZ1003 (granted June 2025); CE
General characteristics
- Type
- Linear Amplifier
- HAM bands
- 160m 80m 60m 40m 30m (WARC) 20m 17m (WARC) 15m 12m (WARC) 6m 10m
- Frequency stability
- ?
- Tuning steps
- ?
- Memories
- ?
Transmitter
- TX-range
- 1.8-54 MHz / 160-6 m
- Modulations
- All mode
- RF-output
- 1000 W PEP or 900 W continuous carrier (±0.5 dB), no operating-mode limitation
Selectable full or 50% reduced power
Connections
- Antenna
- SO-239
- Impedance
- 50Ω
- Other
- -
Electrical
- Power requirements
- 90-132 VAC / 180-264 VAC (taps for 100, 110, 120, 200, 210, 220, 230, 240 V nominal, ±10%), 50-60 Hz, single phase 2000 VA at 240 VAC at rated output
- Current drain RX
- ?
- TX
- ?
Physical
- Dimensions (w×h×d)
- 423 × 195 × 398 mm (16.65 × 7.68 × 15.67 in) Operating, excluding cables and optional fan
- Weight
- 21.00 kg (46.3 lbs) Operating, excluding cables and optional fan
- Form factor
- Base Station
- Manufactured
- Between 20xx and 20xx
Other features
- Usage
- Amateur / Ham radio operators
- Features + options
- Tube linear amplifier, 160-6 m, single 3CX800A7 triode (grounded grid)
1000 W PEP / 900 W continuous carrier, 50-80 W drive
Selectable class AB2 (SSB) or class B (digital) operation
TRI bar scale and input attenuator for tuning
Two-line OLED, 18 selectable parameters
Three antenna outputs; HF reed relay for silent QSK
No external tuner needed up to SWR 3
Signature log of the last 8 hard faults - Accessories
- -
- RigReference ID
- 6864
- MPN
- ACOM-001003
Manuals, diagrams and brochures
-
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Based on similar Linear Amplifier equipment, the estimated value of the ACOM 1003 is around:
- USD 462 ~ USD 858
This estimate is based on similar equipment and may not reflect the exact value of this model.
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Links & tools
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