On Sun, Sep 4, 2011 at 2:04 PM, Steve Cabral <[email protected]> wrote: > Has anyone experienced a high noise level from their flex compared to other > radios in the shack? > > I'm running a Flex 5K (with 2nd RX and ATU, but they are off or bypass), > SDR 2.2.2. I am seeing about a S8 level of noise with the preAmp off and a > S6 with the preAmp on. This seams backwards to me as my ICOM735 raises the > noise level when I switch the preAmp on. For reference, the AGC-T is 99, NR > on, 14.200MHz SSB with a BW of 2.4K. > > If I move the antenna coax to my ICOM 735 the noise level is S1 with the > preAmp off. > > Any ideas? >
Yes. The noise level reading on the s-meter or dBm display should remain the same with the preamp on or off. Only if the noise is very low should you see the s-meter drop when you turn on the preamp. Sounds like you need to run the calibration. Connect a dummy load, press Control-Shift-P, and run the image and receiver level tests. Repeat using Control-Shift-R for the RX2 tests. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 [email protected] +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
