Open Box Expert Electronics MB-1 HF/50MHz/VHF SDR Transceiver with ATU SN133773. Tested and updated on 6/11/20 both Windows OS and Firmware for unit. Listened and worked a few US stations on 40m as a test....fantastic.
MB1 High-End SDR Amateur Radio
Expert Electronics MB-1 + APU HF/50MHz/VHF SDR Transceiver
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 on board.
There are two model configurations of the Expert Electronics MB-1 SDR Transceiver available for purchase:
MB-1 + APU HF/50Mhz/VHF SDR Transceiver which features a high end personal computer with an Intel Core i5 CPU, 8GB RAM, and a 120GB Solid State Storage Drive (SSD).
And
MB-1 PRIME + APU HF/50Mhz/VHF SDR Transceiver which features an even more powerful personal computer with an Intel Core i7 CPU, 16GB RAM, and a 500GB Solid State Storage Drive (SSD).
The SDR Radio Transceiver hardware is identical in both models. The base model MB-1 is upgradable to the Intel Core i7 CPU, will additional RAM and storage to match or exceed the MB-1 Prime, if requested. Please allow additional time for upgrade installation.
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 1280x800 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)
Small delay in CW mode (about 10 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.
Software
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.
