Geoff, The Flex 1500 has no filtering below about 480kHz.What you are seeing
are images from any strong signal on the antenna. And maybe failure of image
rejection.I am using my F1500 on 630m and 2200m on WSPR etc with a 500kHz low
pass filter for Rx and one for Tx.I have made a small band pass filter with
455kHz IF cans capacitively coupled. They tune to 475kHz easily.Alternatively a
preselector or tunable front end. The 160m inverted L is pretty sharp too on
the even lower bandsThe F1.5K will put out 1mw or so on the XVTX/COM on both
bands but again you do need some filtering before an amplifier.I did suggest
that the next update might hold the internal filter to 470kHz.Good luck. Andrew
> From: [email protected]
> To: [email protected]
> Date: Sun, 17 Feb 2013 12:18:11 +0000
> Subject: [Flexradio] Flex 1500 on 473Khz - Dial tuning backwards!
>
> I don't know if this is just my Flex 1500 or if this is a general thing.
>
> When I tune below 500Khz it appears that the display tunes backwards.
>
> Also if I use the Crosshairs, target a signal peak (Below 500Khz), click the
> mouse, the display shows the frequency I clicked on, but the station has
> disappeared.
>
> If I tune say from 480 to 520 Khz, the display tunes the wrong way until I
> get to 500Khz and then it changes direction and tunes the way I would expect
> it to.
>
> Also as you approach the 500Khz spot, you can see some images coming
> together and merging.
>
> I have never noticed this before, but we are off on an Exped in a couple of
> months, and we are hoping to run a 473Khz station. This has put a damper on
> my experiments.
>
> My question is simply, is this what everyone else's Flex 1500 does, or is it
> just mine?
>
> Geoff
> G0DDX
>
>
>
>
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