[Flexradio] SWR Meter

2005-12-25 Thread Richard Stouffer








In the SDR 1000 manual, on page 54, it says there is an SWR
in the TX modes of the Multimeter. It further says that it is only available
with the PA and TUN on.  I ve used 1.4.4 and Revs 7, 8, and 9
and they dont have it, and I do have the PA. 

Where is the SWR meter? 



Richard- KE5DLQ








Re: [Flexradio] remote

2005-12-25 Thread Robert McGwier
The server takes the place of the port forwarding at the firewall. I get 
it.  So for the cost of having a server, you get greater flexibility.  
The loss of the file transfer after a month in the free version is the 
thing that turned me off.  The other thing that will turn me off,  
almost completely, is the continuing bias that believes Windows 
computers are the world's only computer.  I use UltraVNC to talk to the 
TightVNC servers on my Linux machines more often than I talk UltraVNC to 
UltraVNC server on my desktop, so the lack of a Linux client and server 
is a deal killer.  On my firewall,  X.X.X.101  gets  port forwarded if 
5801 is chosen,  X.X.X.102, gets 5802, etc.  And on the machines I run 
the vnc servers on screen :1, :2, ... respectively.  This works 
seamlessly.  On the other hand,  I often have to ssh in from the one 
machine I can remember to remember which screen is in use on the target 
computer.


As always,  there are many pluses and minuses to these decisions and 
there is no one size fits all. Skype runs on all machines and it goes 
without saying that I use this everywhere.


Hope everyone is having a great holiday!
Bob





richard allen wrote:

Each remote computer registers itself at powerup so it can make 
requests to the LogMeIn server.  I am presented, at the 'client', 
with a list of those logged in and select the one I want.  In 
actuality, all my computers are clients and are served by LogMeIn's 
server.


LogMeIn software runs in all my mahines.  The frill that I need that 
goes away after the first month or so in the free version is the file 
transfer.  I pay for that on only two of the eight machines that I 
have on the service and if I really need a large transfer I can log 
onto one of those 'pro' versions.  Only one end of the link needs to 
be the unfree version to run the file transfer program.  The two on 
the 'pro' version are $11/month each.


Since I can open whatever ports I want in my sdr1000 remote computer, 
it has an ftp server.  I guess only one end of ultraVNC needs to have 
special ports open so it would fit.  It is nice to be able to walk up 
to any machine and access my whole suite.


My little tcp/ip data tranceiver test gets about 30-40 k bytes per 
second limited by uplink bandwidth and I was planning on replacing  
skype audio with it.  Then hopefully having a shell gui running on 
the client and the radio and working copy of the PowerSDR running on 
the main machine.  I understand that the new architecture may ease 
this but if not I can always use CAT over the tcp/ip link.


Now, with this lashup, the cw latency runs about 500-1000 ms so I've 
got that problem to address yet.  Running Collins 32S1 style audio cw 
over the audio link might work since there is really no need to hear 
the resulting code; it has another 2-3 seconds before it will be 
heard by anyone.  For eme most  of the cw will be automatic sequences.


Regards,
Richard

Robert McGwier [EMAIL PROTECTED] wrote:
(12/24/2005 23:40)

 

How does LogMeIn find the specific computer targeted  if it does not do 
port redirection from the firewall?  That is some magic I would like to 
understand.


Bob




richard allen wrote:

   

Do either of the ends of the link require open ports for the 
communication?  Not having to do this was the reason I used LogMeIn.


Merry Christmas!
Richard W5SXD

Robert McGwier [EMAIL PROTECTED] wrote:
(12/24/2005 14:05)



 

Many of us here (Phil C, Tom Clark, Rick Hambly,  I believe Eric1 now) 
use UltraVNC.  It does file transfers seamlessly,  it will compress 
things automatically to transmit them if you have not already.  It has a 
hook driver that taps the system that really does a bang up job of 
compressing the screen and getting it out the door to you.  Unlike some 
other offerings mentioned,  the file transfer and the other goodies will 
not disappear after a trial period, leaving you with a fast terminal and 
nothing more.   UltraVNC is open source and free for download from 
source forge.  It is my opinion that it positively wipes the floor with 
Real and Tight.  I wish someone would port it to Linux so I did not have 
to use Tight any more at all.


Bob
N4HY



[EMAIL PROTECTED] wrote:

  

   


Also, Bob - N4HY mentioned UltraVNC.

Eric


  -- Original message --
  From: Ken N9VV [EMAIL PROTECTED]

   Richard, for your remote operation, you might want to look
   at tightVNC. It has some extra .jpg compression features
   that could increase your panadapter response:
   http://www.tightvnc.com/
   de Ken N9VV
  
  
   richard allen wrote:
The Skype voip stuff for the audio is pretty low bandwidth and
  would
work well over dialup. The LogMeIn screen and control stuff
  would be
a bit sluggish but would probably be usable if you did not
  care about
the panadaptor display window. I'll need to reconfigure my laptop
for dialup and give it a try.
   
Richard W5SXD
   
   



 

[Flexradio] Audio Processing for SSB

2005-12-25 Thread Ahti Aintila
The SSB modulation came to the telecommunication in the purpose of 
saving frequency spectrum and reducing transmitting power without 
sacrificing the signal intelligibility. It seems to me that during the 
years and decades the knowledge of processing the signal for optimal 
communication grade frequency/power spectrum has almost vanished down 
and under.


Fortunately, at least our clever software wizards still understand 
better than we, the appliance operators, what and how to do it for 
HF-ham radio communication. I uploaded to my homepage a couple of 
ancient articles that may be fun reading to the newcomers for the basic 
understanding why and how the signal has to be processed: 
http://kotisivu.dnainternet.net/ahti/sdr-1000/speechproc.pdf

http://kotisivu.dnainternet.net/ahti/sdr-1000/filtclip.pdf

The first article is amateur radio oriented and from ZL1BN in Ham Radio, 
February 1975. This and the more recent good work of our AGC guru, Phil 
VK6APH, shows that the real understanding has survived well down under 
in Australia and New Zealand. Now the ideas born in the tube (or valve) 
age are experiencing a rebirth with the better tools of DSP and the Flex 
software team working as the midwives. Thanks FlexRadio letting this 
happen!


Happy Boxing Day and 73, Ahti OH2RZ




Re: [Flexradio] Problem

2005-12-25 Thread Ross



I found out what my video problem was with 8 and 9 
I did not have all the video drivers installed, 8 and 9 now appear to work 
ok.
For some reason 8 and 9 must be "slightly 
fussier".
When I initially installed VAC on the machine 
yesterday, (yes Christmas day) for some reason it completely andI mean 
totally, wiped out windows XP, so I had to go right back to basics 
reinstall windows, format the drive etc, so I 
missed reinstalling all the video drivers.
At least now there is nothing else on the machine, 
that should upset PowerSDR, so Bob (N4HY) I will see if it will run 
24/7.
Phil, K3IB if you read this can you see if you can 
find a copy of the mods you made, that we discussed on teamspeak.
\Thanks to all the SDR's I am learning all the time 
and it is fun
best wishes from "sunny" although not today, 
NZ.
Ross
ZL1WN