[RVRC] My signals heard in TX with 1 watt!

Wed Mar 31 19:07:21 EDT 2010

Hello Gerry,
                   Verykewl indeed, and many thanks for sharing this with 
us! I didn't realize you could narrow your passband down to 10hz with the 
Flex, but it seems to reason that it's entirely possible. Talk about a QRM 
fighter! The narrow filter fascinates me, as do all of the true IF DSP and 
SDR techniques.

Just a FYI: I acquired a "RFSpace" SDR-IQ, and the IF-2000 board that I 
installed in my Yaesu FT-950. It doesn't offer the same versatility as the 
Flex radio (especially on transmit) but it gives a clear concise picture of 
a signal with all of it's anomolies! With the menu set for both panoramic 
and verical waterfall displays, one can actually see the dots and dashes 
transmitted by a CW signal. I find that aspect of it fascinating, and it 
helps me bring up my CW speed -)

Hope to CU on the waterfall soon via PSK31 or any of the digital modes. If 
you (or anyone else reading this) would like to sked, please let me know.

I ESPECIALLY LIKE FELDHELL, IT'S A REALLY KEWL MODE. TRY 7.077 FOR HELL 
CONTACTS.
I ESPECIALLY LIKE FELDHELL, IT'S A REALLY KEWL MODE. TRY 7.077 FOR HELL 
CONTACTS.

73 & CUL DE N3IBX SK
73 & CUL DE N3IBX SK

----- Original Message ----- 
From: "N2GJ_AMSAT" <n2gj at amsat.org>
To: <rvrc at mailman.qth.net>; "DSRC" <dsrc at lists.epiphanydesign.net>
Sent: Wednesday, March 31, 2010 6:20 PM
Subject: [RVRC] My signals heard in TX with 1 watt!

> My friend Dudley WA5QPZ works with my cousin Greg K5GJ at Flex Radio. 
> Today
> they put a live audio/video stream online (see URL below). One of my
> contacts was a Polish station on PSK31 - at the same time as the QSO, 
> Dudley
> had my signals streaming across the screen on the Flex Radio 1500!  He 
> also
> heard me loud & clear on CW with 1 watt with the FT-817!  He was showing 
> me
> the filtering - he narrowed my signal down to 10 Hertz!  <G>  Pretty wild.
>
> There's a chat capability on the website - here's the log of our chat.  I
> think you'll agree this is pretty cool stuff!
>
> ------
> Log follows:
> ------
>
> N2GJ: N2GJ Kingston, NJ here
> Dudley: Hi there.
> N2GJ: Hey, Dudley - how are you?!~  I see that running on Win7 64 bit yay!
> N2GJ: I'm just TOO excited!
> N2GJ: the new skin (is that the right word) is great looking!
> Dudley: There are several others.. 12 I think
> N2GJ: wow, is that PSK at the same time as SSB?
> N2GJ: I think i'll go down and see if i hear these guys on my transceiver
> Dudley: I bet Europe is coming in much better there than in central Texas
> N2GJ: is there a camera taking video off the screen, or something else?
> Dudley: Coming directly from the computer.
> n2gj: that's too cool!
> n2gj: wonder if you can hear me if I xmit!
> Dudley: What Freq
> n2gj: i hear myself!
> n2gj: little delay
> Dudley: Pick a clear freq
> Dudley: how about 194?
> n2gj: 213?
> Dudley: Good Signal
> Dudley: S8
> Dudley: S9
> n2gj: nice
> Dudley: you will never hear the 5 watts
> n2gj: i'm running 100 w icom proIII
> n2gj: aw
> n2gj: g5rv at 60' no beam unfortunately
> n2gj: i could try my ft-817 5w
> n2gj: see if you hear me
> n2gj: gimme a min
> Dudley: See all the signals around us there?
> n2gj: that's me on cw
> n2gj: don't have a mike
> n2gj: 5 w
> Dudley: Do it again
> n2gj: 1 w
> Dudley: I can go to 10 cycles wide
> Dudley: how's that?
> n2gj: wow that is amazing
> n2gj: 1 watt
> n2gj: how sensitive is that rx?
> Dudley: I am not sure on the 1500.
> n2gj: 5 watts vy loud!
> n2gj: hi hi
> Dudley: Let me open the passband up.
> n2gj: 2.5 w
> n2gj: just a slight latency but that's too be expected
> n2gj: doesn't make a great CW sidetone from here!
> n2gj: ;-)
> n2gj: gotta get a mike for this yaesu
> n2gj: got the rig from a friend's estate = he left it to me but there were
> no accessories with it, just the rig
> Dudley: Yes the delay would be distracting.
> n2gj: heck the price is right!
> n2gj: still 1 watt (or whatever the lowest power is on this thing is 
> pretty
> good to TX
> n2gj: could we try PSK?
> n2gj: do you have that setup where PowerSDR speaks to DM780, etc?
> Dudley: Sure
> n2gj: I'll go to 14.070
> wb4qda: I have decided we need to clone your brain
> n2gj: calling sp3cfm who answered my cq on first call!
> n2gj: can you see my sigs too?
> Dudley: yes I did,  there is someone in there with a really strange 
> signal.
> n2gj: i have the audio turned down
> n2gj: running about 25 watts here on psk using a nue-psk modem, no pc, no
> software at all!
> n2gj: just have whatever software controls the PIC inside!
> n2gj: i really don't have the resolution to read your screen here
> n2gj: are those all qso's on the screen streaming by?
> n2gj: my signal look ok to you?
> n2gj: great that you can reconfigure screens like that
> n2gj: very cool
> Dudley: It looked just fine.  NP..
> n2gj: thanks
> n2gj: just about any way you wanna look at it
> Dudley: I don't know if you can tell,  but I can pick out any PSK signal.
> n2gj: looks like you just click on it
> n2gj: how does it know all the callsigns?
> n2gj: at one time?
> Dudley: In DM780?   It reads the calls and keeps a log on whether or not I
> have talked to them before.
> Dudley: Need to go,  I'll be moving around.
> n2gj: ok
> n2gj: take care hi to greg
> ------
> Log ends
> ------
>
> 73,
>
>
> GJ
>
> Gerry Jurrens N2GJ
> mailto:n2gj at amsat.org
>
>
> ---------- Forwarded message ----------
> From: N2GJ_AMSAT <n2gj at amsat.org>
> Date: Wed, Mar 31, 2010 at 6:10 PM
> Subject: Thanks QSO on PSK!
> To: sp3cfm at wp.pl
>
>
> 14.070 3/31/10 at 2053z RS Q 599 (NUE-PSK <http://www.nue-psk.com%20> 
> Modem,
> Icom 756-Pro III 25 watts to G5RV at 20 meters)
>
> My friend Dudley WA5QPZ was monitoring our QSO on a Flex Radio Systems SDR
> 1500 today near Austin, TX:
>
> http://www.livestream.com/wa5qpz
>
> Very 73, Happy Easter!
>
> Wesołych Świąt / Happy Paschy
>
> GJ
>
> Gerry Jurrens N2GJ
> mailto:n2gj at amsat.org
> Kingston, NJ
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