Antenna Tuner System AT-502 Description
This tuner is designed to remotely match balanced HF antennas.
This unit features automatic selection of tuner settings based upon transmitted frequency. Unique to this tuner, no special cabling or adapters are required. The operator simply transmits into the antenna and the tuner detects the transmitted frequency and selects the correct settings from memory.
The matching circuit consists of a remotely tuned balanced π circuit. The balun is placed at the input of the tuner. The Output capacitor is a stepper motor controlled High Voltage variable capacitor.
Manually tune band segments and memorize settings. In operation the tuner will recall the settings for a given band segment when it detects the RF.
The Control Cabinet contains the tuning controls, memory location selection, Automatic or Manual switching and a display that indicates the memory location in use, the frequency range as well as the span, and the tuner settings.
Automated Tuner Control based on transmitted Frequency
Remote Matching Dipoles of balanced and unbalanced Antennas within
the Amateur Bands 1.8 to 30 MHz
True balanced Pi Tuner to match Dipoles, Loops, Inverted Vee's etc.
Un-balanced Pi Tuner to match any un-balanced Antenna
Antenna Switch ASU-502 as option to allow 2 different Antennas
200 Watts SSB/CW when tuned
Twice 85 Memory Locations
Alternative manual Control for the Remote Tuner
Built-in lighting Protection
Built-in Over voltage Protection
Typical Setup for all models.
Antenna Tuner System AT-502 Technical Data
Frequency Range Amateur Radio Bands within 1.8 to 30 MHz
RF Power 100 Watts tuning 200 Watts SSB/CW when tuned
Pi with un-balanced input. Unbalanced antenna mode: unbalanced Pi
Reactance Control Input Capacitance = 256 steps of 17 pF each
Inductance = 64 steps
Output Capacitance = 256 steps of 1.8 pF each
Lightning Protection 2.5 Kilo Volt, 10 Kilo Amps
Over voltage Protection 2500 Volts
Weather protected Cabinet IP65, UV resistant ABS plastic
Dimensions 9.8’’W X 3.6’’H X 6.3’’D
RF Terminals RF input = N Connector
Antenna terminals = Ceramic Insulators
Control Cable Connector Male plug 26 poles, weather proof
Antenna Matching Memory Two banks of 85 Memory Locations
Frequency Span per Memory Location
1.8 MHz = 20 kHz
3.5 MHZ = 30 kHz
7.0 MHz = 30 kHz
10.1 MHz = 30 kHz
14.0 MHz = 30 kHz
18.0 MHz = 40 kHz
21.0 MHz = 50 kHz
24.9 MHz = 50 kHz
28.0 MHz = 100 kHz
Display Memory Bank, Frequency and Span in kHz,
Antenna matching values
Control Cable Terminal DB-25 female
Control Cable Length 100 ft. # 20 conductor
AT-502 - Automatic Remote Controlled RF Antenna Tuner 200 Watts for Random Length Dipoles or Loops 1.8 to 30 MHz
- Brand: Hamware.de
- Product Code: AT-502
- Availability: 3 Weeks
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