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Old September 10th 03, 06:39 AM
Pete KE9OA
 
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Thanks Hank................................we were just talking about that
VLF through MW tuning range this afternoon. Now, as far as OCXOs, when I
was working for Motorola, the general price quotes were in the 500 to 800
dollar range. TCXOs were a little bit cheaper, in the 50 to 80 dollar
range, and this is with a 5ppm drift rate. 1ppm units were in the 100
dollar range.
Henry Kolesnik wrote in message
...
Pete
For layout of the knobs and controls take a look at the old Bearcat

DX-1000
and refine that ergonomically. A front panel engineered properly wouldn't
require a manual on how to operate it. If you can make it portable so

much
the better but include a bnc for a 50 ohm antenna. If its portable make

it
so it can be installed in some kind of enclosure that makes it a desktop
unit. While your designing why not make the desk top with plug in modules
that can be upgraded with options and shrink that design to one board for

a
somewhat less feature rich portable. I'll bet there's a market if you can
make the price right. Options would include ocxo, vlf, filters, synch

det,
uhf conv, scannning, more memories, 10 Hz readout, then 1 hz
readout...spectrum scope, timer, etc. A person should be able to afford

the
stripped down unit and listen and then as budget permits add the desired
modules. Repairs would be module swaps.
Best of luck in doing it.


Hank, I appreciate the input.............I knew that there was demand for
this type of unit. While all of these options are good, especially the
upgradable topology, I think that development costs would be quite high. I
was thinking about something a little bit "leaner", although with
superlative performance.

Pete
73
hank wd5jfr
"Pete KE9OA" wrote in message
...
My employer has given me the go ahead to design a new product. If there

is
enough interest, I will design a new MW receiver for the market. What

would
you be more interested in......................a small table top type,

or
a
portable?
Performance wise, I am talking about something like that of an AOR7030.
I don't think that I would be inplementing Sync Detection, but a couple

of
I.F. bandwidths could be possible. Definitely, double conversion, and
digital readout, with good audio quality.
Would you want any presets? How about target price? Do you want a

built
in
antenna, or external antenna only? High and low impedance antenna

inputs?
How about a built in tunable preselector?
E-mail me directly, and we will see what happens. Any of you who have

built
any of me receivers know what I am talking about...............I plan to
take the design to the next couple of steps up in performance.

Pete