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Actually, the CAT etc stuff was a bit of an afterthought. I was trying to
think of ways to reduce the per-client bandwidth down from the full
sample to whatever the immediate requirement is. Polling of the rig might
work since only frequency changes that take it out of the current segment
will need to be reflected back to the server. There are lots of tricky
problems with the concept but it's all off topic anyway.<br><br>
Does moving the filters help because of PCB space or calibration? If it
opens a can of worms then maybe separate signal generator board project
would be simpler. <br><br>
Murray VK6HL<br>
<br>
At 07:38 PM 11/07/2006, Alex wrote:<br>
<blockquote type=cite class=cite cite>The suggestion box is always open!
<br><br>
Does CAT or C-IV support bi-directional control? To be honest I've never
never tried it. I think the remote control capability is that in fact,
remote computer control of the radio. What you're probably looking for is
a physical feel to the radio (knobs, switches, lights, meters) that is
the goal of the SASQUATCH board.<br><br>
CASMIR as an RF Signal Generator is very do-able, especially if the
filtering is moved off to a separate board.<br><br>
Like Lyle said, would anyone like to step up and take the HF filter and
10w amplifier board?<br><br>
Alex, N3NP<br><br>
----- Original Message ----<br>
From: Murray Lang <murray.lang@metoceanengineers.com><br>
To: hpsdr@hpsdr.org<br>
Sent: Monday, July 10, 2006 10:31:11 PM<br>
Subject: Re: [hpsdr] Horton with Trumpet??<br><br>
***** High Performance Software Defined Radio Discussion List
*****<br><br>
Would I be talking out of turn here to make a request? Profuse apologies
if so and I'll go back to just observing, but this topic touches on
something I'd like to experiment with when I finally get my hands on an
HPSDR.<br><br>
I'd like to be able to use Cashmir as a "modulator" to plug a
signal directly into a receiver. Obviously an external attenuator would
do the job, but if there is a way to get the low level signal directly
from Cashmir that would be nice. Where I see this being useful is in the
remote receiver scenario where the operator would prefer to use his old
rig as the interface rather than a computer. If the rig has serial
control such as CAT, then these control signals could be transmitted to
the remote PC to move a filter (virtual/proxy receiver) over the Mercury
output or whatever. I haven't though too much about the TX side but it's
not hard to dream up scenarios.<br><br>
Another use for such a feature in Cashmir is where HPSDR is used as a
flexible RF signal generator, in which case perhaps an option for a
switchable output attenuator might be beneficial if there's
room.<br><br>
I'm back in my box now (c:<br><br>
Murray Lang - VK6HL<br><br>
<br><br>
At 06:27 AM 11/07/2006, CT1IZU wrote:<br>
<blockquote type=cite class=cite cite>***** High Performance Software
Defined Radio Discussion List *****<br><br>
<font face="arial" size=2>If Casmir has to be split to a seperate HF only
version does it not make more sense to give Horton a trumpet and so
amalgamate the designs??</font><br>
<br>
<font face="arial" size=2>Following from Alex's comments I can imagine a
QSE/QSD to set of 10 x4 pole active filters, amp reverse switchable by
say FST3125/6 using Norton style amp with either 4x PMBFJ310 or BFQ17etc.
Tx output could be brought up to say a 10w level with the new Mitubishi
RD00HHS1 driving a P/P pair of RD06HHF1 MOS Fets.</font><br>
<br>
<font face="arial" size=2>Shel CT1IZU</font><br>
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