General Specifications ADT-200A
Receiver
| Frequency Range (without options) | 10kHz … 30MHz 1.8MHz … 30MHz |
Input RX-ANT Inputs ANT1, ANT2 |
| Resolution of Tuning Knob | ± 1Hz | |
| Frequency changement per resolution | 500Hz … 100kHz | progressive from > 3 Turns/s |
| Preamplifier | 0, +5, +10dB | |
| Attenuator | 0, 5, 10, 15, 20, 25dB | automatic/manual Operation |
| Max. Input Power (Ue an 50Ohm) | -8dBm +17dBm |
Att = 0dB, Preamp = 0dB Att = 25dB |
| Sensitivity (MDS) CW (f = 1.8 … 30MHz) (B = 500Hz) |
<-137dBm (0.03µV) < -127dBm (0.1µV) |
S/N = 0dB, Preamp = 10dB S/N = 10dB, Preamp = 10dB |
| Sensitivity SSB (f = 1.8 … 30MHz) (B = 2400Hz) |
< -120dBm (0.22µV) < -110dBm (0.7µV) |
S/N = 0dB, Preamp = 0dB S/N = 10dB, Preamp = 0dB |
| Sensitivity AM (f = 0.1 … 30MHz) Preamp = 0dB Preamp = 10dB |
< -105dBm (1.8µV) < -112dBm (0.57µV) |
B = 9kHz, fmod = 1kHz, m = 60% S/N = 12dB |
| Noise Figure | < 10dB | Preamp = 10dB |
| Intermodulation 3. Order (IP3) 1) | > 28dBm | 2 x -14dBm, delta f = 2kHz, B = 500Hz |
| IM3-free Dynamic Range 1) | > 96dB | Preamp = 0dB |
| Intermodulation 2. Order (IP2) | > 60dBm | 2 x -14dBm, f1 = 6MHz, f2 = 9MHz |
| IM2-free Dynamic Range/td> | > 93dB | Preamp = 0dB |
| Spurious-free Reception | < -107dBm | |
| Blocking Dynamic Range (Preamp = 0dB) | > 112dB | B = 2400Hz, f = 2kHz |
| Selectivity: CW Filter SSB Filter AM Filter FM Filter |
50Hz ... 1.2kHz 300Hz ... 3.5kHz 3.0kHz ... 10kHz 6.0kHz ... 25kHz |
in 10 Steps in 13 Steps in 10 Steps in 12 Steps |
| S-Meters Tolerance | ± 1.5dB | |
| S-Meter Range | 165dB | -148dBm … +17dBm |
| Sideband Noise of NCO | < -140dBm/Hz | 2kHz spaced from fe |
| AGC Threshold | -40 … -116dBm | selectable in steps of 2dB |
| AGC Time Constants | 1ms ... 100ms 10ms ... 5s 50ms ... 10s |
Attack Hold Decay |
| NF Frequency Response at SSB B = 2400Hz, Equalizer: off |
± 1dB | f_NF = 300Hz ... 2700Hz |
| NF Equalizer (in steps of 3dB) | ± 18dB | f = 300Hz, 800Hz, 3kHz |
| Signal Delay (Antenna input to AF output) | typ. 20ms | depends on filter bandwidth |
1) The two tone measurement procedure is generally not applicable for AD converters , as the IP3 of an AD converter decreases proportionaly to the input signals. On the other hand, due to dithering, the IM-free dynamic range is in practical operation substantialy higher than at the laboratory two tone measurement.
Frequency Reference
| Internal Reference Oscillator | TCXO, 10MHz | |
| Stability at 10…30°C ambient temperature | ± 0.1ppm | after 30min. |
| Aging | max. 1ppm /year | |
| Electronic Tuning Range | ± 8ppm | by SW with external reference |
| External Reference, Type A | 5MHz, 10MHz | |
| Signal Amplitude of external reference | min. 200mV RMS |
Trensmitter
| Frequency Range | 1.8 … 29.7MHz | all amateur bands |
| Output Power Range (in 16 Steps) | 0.1W … 50W max. 45W |
PEP 2-Tone Continuous carrier, unmodulated |
| Harmonics | < -60dBc | |
| Non-harmonic Spurious Emission | < -70dBc | outside of fc ± 200kHz |
| Intermodulation 3. … 9. Order | < - 45dBc | 2 tone, 50W PEP |
| Drain Efficiency | max. 70% | at max. output power |
| AF Frequency Range SSB | 200Hz … 3.0kHz | configurable |
| Rejection of unwanted Sideband | > 90dB | |
| Tx-Equalizer (in steps of 3dB) | ± 18dB | f = 100Hz, 550Hz, 3kHz |
| Enhancement of medium Voice Power | 0 … 8dB | |
| Power Leveling | +18 … -30dB | automatically adjusted according to the selected power |
| Inband IM-Distortions | < -50dB | |
| Tolerance of Power-Meter | ± 5% | numerische u. Balken-Anzeige |
| Power Range of VSWR Meter | 0.1 … 50W | min. Anzeige: 1:1.03 |
General Data
| AC Supply | 90 … 253VAC, 50…60Hz | |
| Power Consumption | 20W (Rx), 120W (Tx) | |
| Dimensions (W x H x D) | 260 x 103 x 260mm | |
| Weight | 4.5kg | |
| Temperature Range | +5°C … +45°C | fully functional |