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?
Jerry W4UK
At 04:46 PM 2/19/2012, Ralph W5JGV wrote:
> My Flex-5000 is utterly deaf below the U.S. AM broadcast band. Can't even
> pick up local airport Non-Directional Beacons.
My F5K has RX2 installed. I have noticed that the sensitivity of RX1 is 37
dB poorer than RX2.
AT 7 MHz, the gain difference between the two receivers is only 1 dB.
And yes, an external low pass filter is an absolute must with the F5K for
600 meters.
The TX is virtually useless, IMHO.
73,
Ralph W5JGV - WD2XSH/7'
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