Hi I am a newbe to flex but looking at your screenshot it looks like the preamp for RX1 is on and the preamp for RX2 is off. Could that be messing things up?
HANFORD R. WRIGHT WA4LZC CRA # 1515 CCA# AC11-12590 -----Original Message----- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Ralph W5JGV Sent: Monday, February 20, 2012 01:45 To: flexradio@flex-radio.biz Subject: Re: [Flexradio] The new 472-479 kHz band - REAL DX > Surprised at your observation, I checked my 5000a and noticed that if > RX1 preamp is off, I get same results on both RXes at 485 KHz, but if > RX1 preamp is on, the baselines are different and I see an apparent > difference of 30-something dB. > > Are you using the same settings on both receivers? Hello Jerry, Yes, I am. See this screen shot: http://w5jgv.com/special/RX1-RX2.jpg (177 kB) It shows that both RX's are set for USB reception, with a 2.7 KHz bandwidth. A 50 Ohm dummy load is connected to the ANT1. The signal on the screen is my PSK31 200 watt transmitter while it is on the air. The antenna connections are: RX1 to ANT1 connector RX2 to ANT1 TAP You can see the signal level difference between the RX's. The gain of RX2 is about the same as both of my Yaesu FT-747GX's. I therefore conclude that RX1 is deaf. As for the preamps, in my F5K, the preamps on both RX's are grayed out and not available at frequencies at or below 2.000 MHz. 73, Ralph W5JGV - WD2XSH/7 _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
