Expert Electronics MB1 Transceiver “Prime” HF 100W, 6M 50W, VHF 50W – ΠΛΗΡΩΜΗ ΑΠΟ 3 ΕΩΣ 60 ΔΟΣΕΙΣ ΧΩΡΙΣ ΠΙΣΤΩΤΙΚΉ ΚΑΡΤΑ


The MB1 transceiver is a game-changer, it’s a transceiver and a PC in a single package. It has a classic design, developed over several decades, with the most advanced DUC/DDC SDR technologies – Direct Down Conversion (DDC) and Direct Up Conversion (DUC) and a fully-featured high-end personal computer with an Intel Core i5 processor onboard.


Εκτός αποθέματος


Κωδικός προϊόντος: 018896


MB1 Prime 2021, its main advantages in comparison to previous MB1 Prime model:
1. New PC hardware:

Motherboard – GA-IMB310TN instead of MDH11HI
CPU – Intel® Core™ i7-9700 instead of Intel® Core™ i7-7700T
RAM – 16 GB DDR4 instead of 16 GB DDR3
SSD – Samsung 970 EVO 500 GB instead of generic SSD

2. Improved TX IMD3 up to ~37 dB across all HF bands, with 100W output power

Features of the transceiver

  • Independent RX path based on DDC (Direct Down-Conversion) architecture
  • Independent TX path based on DUC (Direct Up-Conversion) architecture
  • 2 software RXs + SubRX for each of them (4 slices total) + independent wideband Bandscope up to 80 MHz
  • ExpertSDR2 software in two styles: Desktop style and MB1 display (for integrated GUI)
  • Remote control operation, using it, you connect PTT and CW-key to the E-Coder panel. Microphone and E-Coder are connected to the remotely set up PC
  • TCI interface for seamless connection with third-party software, the list of software with TCI support
  • Professional TX processing module provides the most advanced tuning capability for voice operation
  • High-quality IPS 7″ touchscreen display with a 1280×800 resolution
  • Supports any software applicable for Windows 10 OS
  • ExtCtrl connector to control external devices with 8 powerful keys with open collector
  • COM-port for connection of external devices, like PA, antenna switches etc.
  • ALC connector for external power amplifiers*
  • Has a special XVTR connector for VHF transverters** (SMA connector)
  • 4 separate programmable PTT outputs for external power amplifiers
  • An opportunity to use the transceiver as a signal generator via DAC OUT connector (SMA connector)
  • An opportunity to use external filters in the middle of the RF path, using RX IN and RX OUT (SMA connector)
  • Monitoring delay in CW mode is about 5-6 ms
  • Input for external 10 MHz reference oscillator
  • An opportunity to use the transceiver in SO2V mode
  • Full duplex or half duplex modes***
  • 4 HF (UHF (SO-239) connector) and 2 VHF (N-type connector) antenna connectors
  • Internal power-meter for HF and VHF bands and SWR-meter for HF band
  • Record and play on air fragments (IQ files) with a bandwidth of up to 312 kHz
  • Internal ATU (Automatic Tuner Unit)
  • The embedded power supply unit

* ** *** These functions are supported by the transceiver’s hardware, but is not implemented in the ExpertSDR2 software. They will be supported in the future ExpertSDR2 software releases.


PC capabilities of the transceiver

  • Installation of digital modes software
  • Installation of HAM and Contest logs
  • Two CW Skimmers may be used on different bands
  • The transceiver can connect to the LAN and the Internet
  • Use of Internet applications (e.g. e-mail, Skype, ICQ, TV, etc.)
  • Play video and audio files
  • Watch TV via USB-receivers
  • An opportunity to connect two external displays, keyboard, mouse
  • An opportunity to connect external speakers to the PHONES jack on the front panel


Application area

  • Full-function radio amateur transceiver
  • Mobile contest-station
  • Remote receipt point for the contests and other applications
  • Spectrum analyzer with the bandwidth up to 80MHz
  • Work with the external programs of digital connection types, CW Skimmer, etc.

Block scheme


A version of ExpertSDR2 software with adapted GUI for 7″ display was specially developed for the MB1 transceiver. At the present time software works in RX/TX mode and supports two independent receiving channels with the bandwidth up to 312 kHz. A DSP library developed by company Expert Electronics allowed improvement of receiving quality and higher the stability of the software.

MB1+ATU supplied accessories

  • PTT-microphone MD15
  • Power Supply Cable to connect the transceiver to an AC mains network
  • Backup fuse 5A

Additional accessories:

  • E-Coder Plus or E-Coder control panels for comfortable remote operation
  • HPF for VHF


  • RF ADC, bit @ MHz: 16 @ 160
  • ADC type: LTC2209
  • RX Frequency range, MHz: 0.1…65; 95…155
  • Independent software receivers: 2 + 2 SubRX
  • Sample rate, kHz @ bit: 39; 78; 156; 312 @ 24
  • Bandscope, MHz: 80
  • RX HF filters, MHz: LPF: 65 or 9 x BPF
  • RX VHF filters, MHz: WideRX: 95-155 or SAW filter for 2M: 144-148
  • BDR on HF, dB: 130
  • BDR on VHF, dB: 114*
  • Sensitivity, uV: 0.2
  • DR IMD3, not less dB: 98
  • RMDR, dB: 110
  • ATT/Preamp, dB: -20; -10; 0; +10
  • VHF LNA, dB: +22
  • RF DAC, bit @ MHz: 14 @ 640
  • TX Frequency range, M: All amateur bands 160-6; 2
  • Output power on HF, W: 100
  • Output power on 6M, W: 50 (up to 60)
  • Output power on VHF, W: 50
  • TX IMD3, dB: 25-30 on HF/VHF
  • Local oscillator TCXO, MHz +/- ppm: 20 +/- 0.5
  • External 10 MHz oscillator input: +
  • Built-in audio codec, bit: 24
  • RF input/output: 4HF (SO 239)
    2VHF (N-type)
  • Built-in PC: Windows 10 OS
    CPU: i5-6400T, (Prime: i7-6700T);
    RAM: 8 GB, (Prime: 16 GB);
    SSD: 120 GB, (Prime: 500 GB);
    IPS 7″ 1280×800 touchscreen display
  • AC voltage range, V, Hz: ~100…240; 50…60
  • Power consumption RX/TX, W: 320
  • Operating temperature, °C/°F: 0…+50/ +32…+122
  • Dimensions L x W x H, cm/inches: 2.5 x 28.5 x 15.0/ 12.6 x 9.84 x 5.51
  • Weight, kg/lbs: 9.3/ 22

Specifications are subject to change without notice or obligation and specifications are only guaranteed within the amateur radio bands.