Brick SDR Hermes 14-bit DUC/DDC Transceiver Ham Amateur Radio 20 watt 1.8-50Mhz

Important note regarding technical support and repair:

If you need technical support in usage or a possible repair need, please report your problems first in the Telegram channel. There the designer and some other users can be helpful. We believe that more than 90% of the problems are caused by usage and can be solved by the community. For more information, see "What should I do if I encounter problems?".

A ready to use device. Complete to enter the world of DUC/DDC. Brick SDR TRX by EU1SW based on Hermes OpenHPSDR ie. Hermes-Lite, is a 20 W HF transceiver for the shortwave bands from 160 to 6m.

DDC/DUC transceiver with Ethernet interface. The hardware developed by Linoobs. The firmware (gateware) for this transceiver is based on original Hermes and was modified by Sergey EU1SW and published here.

Separate 14-bit ADC, 14-bit DAC. Works with control programs PowerSDR mRX, Thetis, Quisk and others with Protocol 1, Panorama 48-384 kHz, 8 bandpass filters 160 m-6 m (1-60 MHz), LNA, ATT, audio codec, jack for microphone (MH-48, MH-42b), loudspeaker. SWR bridge on the PA board, display of power and SWR in the program. Frequency stabilization with an additional thermally stable (TCXO) generator.

An Ethernet interface is used to communicate with a personal computer and is operated in a local home network. Sound transmission and control works both on the device itself and remotely; no cables need to be laid other than the Ethernet cable; you can throw it in the attic and continue to use it at your workplace. With this transceiver you benefit from all the advantages of direct digital signal processing that are not possible with classic transceivers.

Key Features:

Two receivers, one transmitter.

Receiver sensitivity -125 dBm at CW 500 Hz

Panorama adjustable 48-384 kHz

Any type of modulation (AM, FM, SSB, CW, DIGI, FT8 etc.)

iambic key

8 BPF

Switchable LNA +15 dB

Switchable ATT -10 dB

TCXO frequency stabilization

SWR bridge

and many other useful and practical things.

The power amplifier consists of field effect transistors RD16HHF1, the output power is 15-20 W in all ranges.

6 low-pass filters for 160m-6m band.

Full frequency extension.

Case dimensions 150*100*55mm.

The each output the ACC socket is an open collector of the ULN2003 Darlington chip.

Technical characteristics:

• 2 receivers (no bypass possible, reception in the BPF of the first receiver)
• Frequency range: 1 - 54 MHz
• Radiation types: AM, FM, SSB, CW, DIGI, RTTY (depend on Control Software)
• Output power: 15-20 W
• Antenna connections: SO-239
• Supply voltage 13 V
• Maximum transmission current 5 A
• Dimensions - W x D x H (mm): 150 x 100 x 55
• Weight (kg): 0.750

Scope of delivery:

• Ready to use device
• Power cord