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RX-888 Info
Posted: Fri Aug 28, 2020 5:30 am
by Simon G4ELI
From
Justin Peng
RX888
Based on FFB103:
- improved HF filter design
- added VCXO clock and shield
- added LT6401-20 LNA for ADC pre-amplification
In addition, the LPF bandwidth is designed according to 65M, and subsequent extio and firmware have the opportunity to increase the bandwidth to 64M.
Re: RX-888 Info
Posted: Fri Aug 28, 2020 6:16 am
by sm6fhz
Thanks for info Simon.
Does / will SDRC support the RX-888 as well as the RX-666?
Are there many changes that need to be done to the interface in order to support the RX-888?
73 / Ingolf, SM6FHZ
Re: RX-888 Info
Posted: Fri Aug 28, 2020 7:06 am
by sm6fhz
The LT-6401-20 looks like a good choice to me for a pre ADC amp here. It is specifically designed for this purpose and is capable of a 6.2 dB NF up to 100 MHz and a +55 dBm OIP3 at 30 MHz.
I am looking forward to receiving the RX-888 and try it out with SDRC
Does the RX-888 need any different drivers than the RX-666 in order to work with SDRC?
73 / Ingolf, SM6FHZ
Re: RX-888 Info
Posted: Sun Aug 30, 2020 7:50 am
by on2ron
Can't find nothing about the filters of the RX-888. All I can see is a LPF in the VHF/UHF stage. Is there bandpass filtering on HF?
73' Ron
ON2RON