The KPA500 measures its RF input and switches within milliseconds to to
the correct band, so if the Flex model you wish to use with it doesn't
output band data you'll only lose part of the first dit (if sending CW)
or the first syllable (if SSB) or the first... and only when you change
bands.
Lyle: can you confirm that the KPA500 will accept band data and the
PTT command on either its PC port (DB-9) or the Xcvr port (DB-9)? That
will really answer the question. Thanks!
If the KPA500 RADIO menu is set to SERIAL, then it will accept
frequency information in Kenwood format over the
My F-1500 was clean on one or two bands and very bad on the rest when I
received it. I took spectrum photos, sent them to Flex, and they
promptly replaced the radio for me under warranty.
The replacement radio, S/N 599 (great serial number, that :-) is clean
on all bands.
73,
Lyle KK7P
...it has to do with the data transfer rates required.
The FLEX-5000 allows a sampling rate of up to 192 kbps for the A/D D/A
converters and the FLEX-3000 allows up to 96 kbps. Add to this the fact
that the FLEX-3000 FLEX-5000 are full duplex radios. That is, the TX RX
audio streams
What inexpensive microphones are (plug) compatible with the 1500?
The Yaesu MH-31 which came with my FT-817 is plug and play for PTT and
mic audio, not the other buttons of course.
73,
Lyle KK7P
___
FlexRadio Systems Mailing List
I can't quite make sense of this:
PHYSICAL RESOLUTION:800 x 480
This is 800 horizontal color pixels by 480 vertical color pixels.
SUPPORTED RESOLUTION: 640 x 480 ~ 1600 X 1200
The display system will expand or compress image sin this range to fit
the display. Like zoom
I think you have us confused with two guys with hair on their heads.
My heartfelt congratulations to two guys I greatly admire, regardless of
hair...
73,
Lyle KK7P
___
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
You definitely want to get a multi-core (AMD or Intel) or a Pentium
D processor since future versions of PowerSDR will be taking
advantage of the technology.
Leaving aside the fact that today dual core processors aren't hugely
expensive (in fact, one of the cheapest computers Dell
The reason stated above is just one of many reasons the KB article
indicates that specifically defining a hardware configuration, whether
it be in a configurator or a recommended hardware configuration matrix
is a very subjective thing to quantify.
I respectfully disagree.
Flex knows
Computer hardware is always ahead of software.
Except when the hardware is tailored to the software, like the Lisp
Machines, or Crays ;-)
Or the Harris RTX-2000 series...
Lyle KK7P
___
FlexRadio mailing list
FlexRadio@flex-radio.biz
Perhaps there are some Flexers out there who can take Phil's vCOM source
code, set things up to cause the problem to happen, and debug it. (No,
not you, Bob.) But if this is a community, and the source is open, it
seems like there ought to be a better solution than spend another $100
when the
Lyle, you make an excellent point. But, you also make my point.
When the ARRL wants to review a QRP rig, they go to a QRP expert.
They should do the same thing when it comes to SDR - go to an SDR
expert, or at the very least someone who has some SDR experience.
(I think the QRP aspect of
Have you seen the review in the September QST of the Hendricks QRP FireFly
SDR transceiver?
Its available now on the ARRL members website. Once again, the ARRL has done
injustice
to an SDR radio by having an SDR neophyte conduct the product review.
The reviewer, Rich Arland, is a very
Jim, W4ATK wrote:
I will be giving a program at our club on Thursday night. I will be
talking
about receivers and the changes that have come about over the years. I need
a graphic to help with my explanation of FFT. I may have to conjure up one
myself, but if anyone has one up their
...SO, I think it should
be as the software is a gift from the contributors to everyone so long
as the GPL is followed. Enjoy, this is not likely to change.
And we are indeed *most* grateful for this, Bob.
Lyle
___
FlexRadio mailing list
Yes: Let's do it on a subscription basis for upgrades...
Let's not.
The code is under GPL. While one could charge for it, anyone can
provide it free of charge to anyone else.
73,
Lyle KK7P
___
FlexRadio mailing list
FlexRadio@flex-radio.biz
Restricting the output bands, would this be something to consider
with the Penelope card as a preventative measure? Worth a discussion
at least. The moment someone uses a Penelope to transmit out of band,
this issue will be re-visited.
Paragraph 16 suggests that Penney is exempt, so long
Ken N9VV wrote:
Anyone at Visalia who can get on Teamspeak and tell the FLEX world
about it? did you see the new FLEX-5000?
Must be having too many libations to let us know -- or maybe the 'net is
down in Visalia...
73,
Lyle KK7P
___
FlexRadio
I have decided to part with my SDR-1000. This is the QRP (1W) version.
I purchased it as a 3-board stack in 2003; later added the RFE and the
cabinet. Heat sink is on the DDS chip, all ECOs I am aware of *except*
the oscillator temperature stabilization mod have been done.
This radio is
Hello Bob!
Steal early and steal often, especially with all of the TREMENDOUSLY
smart people in this group. And if you don't believe me, just ask them,
they will happily tell you!
Oops! I guess I became confused early on when I was told that the
benchmark was the Thieves of
Does anyone have any recommendations for add-on parallel port cards. My new
PC does not have a parallel port and from my understanding the only way to
run the SDR-1000 under vista is to the an actual parallel port.
Recommendations?
Laptop? Desktop? PCI? PCI-epxress? Cardbus?
73,
Probably the single biggest difference between the two is that you
can't change the software in the IC7000, because it's got equipment
authorization and the FCC won't allow it to be changeable to keep that auth.
???
How does TenTec do it with the Orion, Jupiter, Argonaut V, ... and
still
I am interested in using my SDR with a new Dell latop that does not have
a parallel port and was considering the USB cable sold by Flex. If
there are problems with the USB port, is there another way to create a
parallel port on a laptop that has none? PCMCIA card? Other?
Many laptops have
... It makes no sense to run anything but Linux on
the embedded controllers and then have them be a server.
Um, I respectfully disagree. It may make no sense to run Vista / XP /
Windows-flavor-of-the-era on an embedded controller, but if, for
example, one wants to embed a DSP inside an
Count me in on the groundswell...
Me, too. I would like a load-the-CD-and-go version that just works.
Handles the parallel port, or various USB interfaces, knows the popular
USB knobs and knobs-plus-buttons widgets, handles the various
(supported) soundcards, understands the HPSDR Janus+Ozy
Count me in on the groundswell...
Me, too. I would like a load-the-CD-and-go version that just works.
Handles the parallel port, or various USB interfaces, knows the popular
USB knobs and knobs-plus-buttons widgets, handles the various
(supported) soundcards, understands the HPSDR
Linux isn't always the most user-friendly hand-holding OS, but you
can't beat the power and flexibility.
OTOH, it is reasonable to expect that an application (e.g., SDR-1000
console) can be made to self-boot and just look like, well, an SDR
console, without having to know anything about
We need to figure out if we plan to support
the PS3 in our plans, how we get data on and
off the Cell based computer. So far as I have
been able to find, the PS3 does not
support USB (as in doesn't have it).
All the specs I've read indicater 4 USB 2.0 ports in the
front and 2 more in
I am considering purchasing the software needed to decode DRM or Digital
Radio Mondiale. It is available from the folks at DRMrx and others I
believe...
Have any of you tried this software with the SDR-1K? Any problems with
installation or compatibility? Who offers the best software
The theory behind PSK shows that it is indeed far better than CW.
Begging to differ, but PSK is not better than CW, if we are talking
weak signal detection.
Just a point of interest: in the NASA deep space network, working with
truly weak signals, PSK is used rather than carrier on-off
Larry Loen wrote:
[EMAIL PROTECTED] wrote:
Hi Dan,
The Janus board (hpsdr.org) has a jumper selectable 15dB attenuator fitted
to
its input so the board can be used with an existing SDR1000. The attenuator
can be taken out of circuit and the input connected directly to the A/D
And for those of us not attending Dayton, there will be postings of
photos and the block diagram? Hint hint.
Why wait?
The Block Diagram is here:
http://www.amsat.org/amsat-new/eagle/EaglePedia/uploads/6/6e/SDXBlockDiagram.pdf
The functionality inside the broken line is what is intended for
...The latter is also true for the strongest lines in the wrong USB whose
amplitudes are only about -46 dB down. Their frequencies do not
correspond to expectations for intermodulation products. They appear at
3340 Hz and 4560 Hz obove 3.7 MHz in the above mentioned test set-up.
Since
Post deleted by admin.
Bill Tracey wrote:
... Rocky
and KGKSDR have added a +/- 1 sample offset option to deal with these cards
-- think I need to find a little time to code up a patch for this option
for PowerSDR.Anyone have an opinion on the right place to implement
such an option - ie on the C# side of the
Is anyone using a laptop with Flex-Radio?
Beware that most laptops these days don;t have a a parallel port. And
*many* laptops, even though they have PCMCIA or Cardbus slots, won't
work with a PCMCIA or Cardbus parallel port card. If you are planning
on using it with the SDR1K, be sure it
Whatever you do, please don't assume we can dedicate the machine to the
SDR console. We already aren't.
Why not?
Just to play Devil's advocate, let's assume you were using a traditional
radio with a front panel, knobs and controls. It has a PC interface,
and you run your MixW, logger, DX
This seems to be the main site for the Xylo
http://www.fpga4fun.com/board_Xylo.html. I'm looking for other info and
related hardware, but am just getting started myself and about the same
shape as you.
There is enough information there to tell you the main parts on the
board. You then should
The FPGA equivalent is to do a syntax check and correct any errors
there, then run a simulation of the input (if using VHDL or Verilog) to
ensure the logic design seems to be OK.
You then compile it, and then run the simulation on the output of the
compiler, because it will sometimes
Looks like a lot of work, but what fun.
Definitely fun!
Lyle
Rather than a second A/D converter chip for the mic I was also going to look
at using a PWM ramp feeding one input of a comparator and the mic signal the
other. It may have no advantage over a single chip A/D, given the low cost of
these nowadays, but a fun exercise anyway.
Have you examined
Check to be sure that the laptop has a real parallel port -- few these
days do.
If you want to use a Cardbus/PCMCIA parallel port adapter, be *sure* the
laptop supports 16-bit PCMCIA mode. The Dell 6000 and 9300 do not, for
example. And not all parallel port adapters support parallel port
Can an FPGA
pin actually accept a 10 mhz or 200 mhz signal so that the LE’s could be
configured to divide it down?
10 MHz is no problem.
200 MHz! Many FPGAs can handle this frequency, some go faster, many
can't go quite this fast.
73,
Lyle KK7P
Hello Eric!
Thanks. Well not too difficult to divide the 200 by 10 externally and
perhaps provide buffering for the 200 mhz sig coming out of the SDR.
The EP1C3T100 used in the Xylo board you mentioned earlier is good to
275/320/405 MHz depending on the speed grade of the part. That may be
Any experiences good/bad with any of the 2 or 4 port USBserial
widgets. Likewise for parallel (although I confess I've never seen any of
those with multiple outputs, but never hurts to ask)
The only USB/parallel widgets I've seen are USB/printer interfaces.
When attached, the PC (at least
Hello Ahti!
In my previous message the input signal specification should read:
AKM (Asahi Kasei) recommends before the ADC (AK5394A) a balanced input
buffer (NJM5534) that reduces the input signal from max ±12.7Vpp to
±2.4Vpp. Sorry for ignoring the + and - signs.
Are you using a commercial
http://www.centrix-intl.com/ is a surplus/overstock place in Pasadena. They
have (now discontinued) Intel/Xircom USB-RS232 adapters for $1.99 each.
(you'll need a cable too, though.. probably another buck or two).
Click on the MiscCables item on the left hand menu, and scroll down a bit.
No
Hello Greg!
I don't know if my SDR has a problem or if I have
something set up wrong, but while on last night after the
flares subsided, I was working someone on 20M and I
started to get some AGC thumping. I tuned down about
25Khz and heard someone with only a 10 over signal. He
was only
Isn't dithering equivalent to phase noise? Trading off one of the DDS'
greatest strengths to help overcome its greatest weakness...
Lyle KK7P
Let me say that for the future AD9954 and AD9958 just look spectacular.
I have ordered the development boards for both of them. Especially on
the low bands, either of these would give spur performance where the
spurs are below the noise floor at all but sub multiples of the clock.
It is my
Philosophically, if you can avoid needing to steer your oscillator,
that has two advantages:
1) The tuning pin doesn't provide an additional noise-frequency change path
2) The crystal can be higher Q, because it doesn't need to be adjustable.
Sounds like an application for the Huff'n'Puff
Been out of it for a while. Maybe I'm being duped, but what the heck I s a
Huff'n'Puff? !!!
It is a means of gently stabilizing an oscillator. It requires the
oscillator to be reasonably stable already. There are several examples
of this sort of circuit, pioneered by PA0KSB back in the early
On Sat, 20 Aug 2005 19:46:58 -0700
Frank Brickle [EMAIL PROTECTED] wrote:
Jim Lux wrote:
At 01:04 PM 8/20/2005, Ken N9VV wrote:
o Flex tutorial on how it is that a Pentium IV has
enough horsepower to perform all the DSP arithmetic when
an Orion from Ten-Tec has two very fast dedicated DSP
Do you have any kits available for the 160 to 6 m 10
watt amplifier?
Here is a 20W PA one that is being used by some builders of the Pic A
Star project:
http://myweb.tiscali.co.uk/radiokits/pic_a_star/20W_PA/index.htm
73,
Lyle KK7P
Hello Phil!
I am looking at a couple of different A/Ds for my project...
I noticed that the 24 bit audio A/Ds do not really give 24 bit
performance. I was wondering if it might be possible to use two
AD7688 16 bit 500 kSPS A/Ds
(http://www.analog.com/en/prod/0,2877,AD7688,00.html) and get
...If you're looking at the analog output of the sound card,
which is essentially the looped back analog input to the card, then
the sampling rate may not make any difference.
Keep in mind that the SDR-1000 is not baseband in, baseband out, but
uses an IF of 11 to 15 kHz depending on the
56 matches
Mail list logo
