Ryde Receiver sensitivity comparison
Posted: Mon Oct 27, 2025 12:36 pm
Hi,
I've been making the final checks on GB3FT before it goes back into service.
I though it'd be interesting to measure and compare the performance of the rx with that of other users.
For bench marking purposes it's operating at 1249MHz 500Ks FEC 1/2 H265 with a Ryde rx.
The duplexer rx loss is 0.7dB and with -112.6dBm input to the duplexer the Ryde reports D 1.3
I have a high confidence in this number as it's exactly the same as it was 8 years ago when FT was first built !
There is zero tx de-sense which is a good thing.
The preamp after the rx duplexer is nothing special as it uses two PGA103's and the noise figure of the two combined is 1.2dB.
I don't think there's much more I can do to improve the rx, but would welcome opinions and comparisons from other users of the ryde rx.
73 Tim
I've been making the final checks on GB3FT before it goes back into service.
I though it'd be interesting to measure and compare the performance of the rx with that of other users.
For bench marking purposes it's operating at 1249MHz 500Ks FEC 1/2 H265 with a Ryde rx.
The duplexer rx loss is 0.7dB and with -112.6dBm input to the duplexer the Ryde reports D 1.3
I have a high confidence in this number as it's exactly the same as it was 8 years ago when FT was first built !
There is zero tx de-sense which is a good thing.
The preamp after the rx duplexer is nothing special as it uses two PGA103's and the noise figure of the two combined is 1.2dB.
I don't think there's much more I can do to improve the rx, but would welcome opinions and comparisons from other users of the ryde rx.
73 Tim