SG Laboratory (SG Lab) is a small company in Bulgaria which makes a number of microwave products including transverters for the 1.3 GHz (23cms) and 2.3 GHz (13cms) amateur radio bands. In the Spring of 2025, they released a new transverter for the 5.7 GHz (6cms) band.
The new transverter allows anyone with a low power 432 MHz (70cms) transceiver to gain access to the 5.7 GHz band. It's ideal for say someone who has a Yaesu FT-817 / FT-818 or the Icom IC-705 radio.
The output power on 5.7 GHz is 2-watts which when fed into a dish or phased array will produce a reasonable signal. The receive performance seems to be good as well.
Andrew VK3FS in Australia recently did a review of the new SG Lab 5.6 GHz transverter and it can be viewed below...
Andrew also has a more comprehensive review on his website... https://3fs.net.au/sg-lab-5700-mhz-transverter-version-1-4/
He concludes the review with the following... "The long-awaited SG Lab 5.7 GHz transverter would have to be the most cost-effective way to get on the 5.7 GHz band when compared to most other offerings on the market."
