<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hi All,</div><div><br></div><div>I'm a user of W5WC's PSDR.</div><div>Some clarification please.</div><div><br></div><div>1. Neither KK Console nor CuSDR has not the CAT interface.</div><div><br></div><div>2. PSDR 2 RX send which frequency, RX1 or RX2 frequncy.</div><div><br></div><div>I use a homebrew CAT interface data distributor which is connected to CAT interface. The distributor communicate with several devices, such as SteppIR sda100, Ant selector, Auto Antenna Tuner, and 100W amplifier controller.</div><div>All is controlled by the frequncy data from CAT interface.</div><div><br></div><div>If frequency data is to be taken without aid of CAT interface, it is a good way as far as KK Console nor CuSDR would have no CAT interface.</div><div><br></div><div>Tokio</div><div>JA1CCA<div>//Sent from iPhone</div></div><div><br>2012/12/04 12:05、David McQuate <<a href="mailto:mcquate@sonic.net">mcquate@sonic.net</a>> のメッセージ:<br><br></div><blockquote type="cite"><div><span>***** High Performance Software Defined Radio Discussion List *****</span><br><span></span><br></div></blockquote><blockquote type="cite"><div>
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<tt>Hermes implements an interface to either Alex or (future)
Apollo, with serial data including current frequency. When
multiple receivers (in a single Mercury) are being used it's a
little more complicated. Alex Tx low-pass filter is selected from
the highest-frequency receiver, while the Rx high-pass filter is
determined by the lowest-frequency receiver. <br>
<br>
Alex and Apollo data is different. I'll bet the Racal and Cubic
each have their own unique requirements. Some of the ethernet /
usb protocol specifies whether Alex or Apollo is being used. That
protocol would need to be augmented to indicate one of the other
preselectors. (And more FPGA code written, of course.)<br>
<br>
Dave<br>
WA8YWQ<br>
</tt><br>
On 12/3/2012 6:52 PM, FRANCIS CARCIA wrote:
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<div style="RIGHT: auto">Hi All,</div>
<div style="RIGHT: auto">Question: Does the operating frequency
reside in a Hermes/Mercury FPGA register where it could be
moved and shifted out through a serial interface? </div>
<div style="RIGHT: auto">Harris, Collins, Cubic ETC all made
really nice pre/post selectors designed to work in a high
level RF enviorment. These devices would be perfect as a front
end for SDR and some handle 1/2 of TX power. Also Racal made a
nice single or dual 13 filter preselector that covers .5MHz to
30 MHz. used in their HF DF systems. It would be very cool to
have devices like these track HPSDR because duplicating the
performance and quality would cost a lot of money. I have a
dual Racal preselector interfaced to my Pandora dual mercury
box controlled by a switch.</div>
<div style="RIGHT: auto">I've also tested the Cubic preselector
and find it pretty sharp. I'll control it with 4 thumbwheel
switches if I have to.</div>
<div style="RIGHT: auto">Santa, I wasn't that bad....Frank
WA1GFZ<var id="yui-ie-cursor"></var></div>
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