Rene - WA6MJE
Thank you for posting your ideas on the IC-7000 reflector
I am sending a copy of this email to the Flex Radio SDR reflector in
hopes that someone over there is also interested in this idea.
Rene, I am in exactly the same boat as you. I love my IC-7000 and I use
it as my "base station" on SSB, CW, RTTY, PSK, and with the help of
JT65-HF and JT-Alert, now am using my IC-7000 quite successfully on
JT65a (In just 3 weeks I achieved WAS on JT65a using the IC-7000). The
IC-7000 generated enough output power to drive my NCL-2000 linear
amplifier - that punches through the DX pile-ups quite nicely. The
problem with most SDR is they don't put out enough RF power to drive a
linear amp.
But, I too have a sincere desire to experience the new SDR approach to
Ham Radio.
And, YES, it is the Rx features of SDR (vs the Tx features of SDR) that
are most intriguing to me.
Your idea of doing Rx on a SDR and Tx on a HDR ( IC-7000 - Hardware
Defined Radio ) is exactly what I have been thinking about doing.
I am negotiating with a friend to borrow his Flex-1500 for a few weeks
while he is out of town on vacation - maybe I will be able to discover
something during that short test period.
Every question you raised in your initial email has also been pondered
by myself, as I think about integrating station operation using SDR and
HDR as the solution.
If there are others out there who are contemplating working in this
HDR/SDR environment (or currently doing it) - Please speak up now so we
can start sharing ideas and working together to figure this out.
Again, Rene, thanks for asking :-)
Terry McCarty
3...@comcast.net
wa5nti
RTFolse wrote:
I am planning out an upgrade to my working station that has had the
IC7000 since it was first introduced by Icom, which I love. I work
mostly digital modes, especially JT65HF.
I would like to have a receiver with a wide band panadapter to use so
that I can keep an eye on the entire band, or at least the digital
half of it. At first I have explored just buying a new rig, but, with
the exception of Flexradio, the major gear makers have yet to jump
into SDR. So I am exploring the smaller manufacturers that typically
have receivers, not transceivers.
Then it occurred to me that there is nothing special (to me) about a
SDR transmitter, it is the receiver side that I am interested in. This
opened up the possibility of just using the transmitter side of the
IC7000 along with my choice of an SDR receiver. There are a lot of
good ones.
So now the problem boils down to how do I integrate a second SDR
receiver with the IC7000 transmitter without damaging anything and
minimizing the use of black boxes and wires all over the place. I am
going to think aloud, and hope for some advice here from anyone who
has done this.
Both the SDR receiver and the IC7000 can be controlled by CAT
commands, so I am hoping that as I experiment around with several of
the SDR software packages, at least one of them will be able to send a
transmit command to the IC7000 along with a mute command to the SDR
receiver. This would be sent through a USB CAT cable to the IC7000.
I am also going to need to trigger an antenna switch of some kind.
Which one? How are the commands sent to that? I am more or less stuck
on this question, but am looking at antenna switches to see if I can
make us of one. Some of them have "auto sensing" that triggers the
switch soon after RF is sensed, but that scares me somewhat because of
possible damage arsing out of latency.
I am really hoping to set this up with something someone already
figured out rather than by the expensive trial and error method.
At the end of the day, I am hoping to have the SDR receiver monitor
several slices of activity at once, and then the transmission from
whatever digital mode I am in should be sent through the IC7000 side.
This would be cheaper than buying a SDR transceiver when all I really
want is the receiver. The IC7000 is a nice small rig, and I am hoping
all I need add is an equally small SDR receiver with no knobs, hidden
away. If my dream comes true, I will have a station that leaps forward
decades in technology, without spending thousands of dollars to get
there, and still have the IC7000 to just grab and go with when I want to.
Advice is appreciated
73's Rene - WA6MJE
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