It was 1425Z here in SW Wisconsin and I was copying JA1RZD on 14072.5 +
1500 Hz with near 100%, but he could not hear me. Very low noise and no
S-meter reading on my end. After calling him a few times, he did ask QRZ
and later KC7?? but I can imagine that noise levels might be much
stronger on
Just shows what an excellent engineer Pawel is (Pawel designed Olivia and MT63
and had a part to play in PSK with slowbpsk).
Also I would have sent the PSK using lowercase - it's faster, less bits per
character and hence more robust.
Simon Brown, HB9DRV
www.ham-radio-deluxe.com
-
New release (4.14) of MULTIPSK
Pour les francophones: la version française de ce message se trouve sur mon
site (http://f6cte.free.fr). Il suffit de cliquer sur le lien Principales
modifications (courriel avertissant de la sortie de la nouvelle version).
Hello to all Ham and SWL,
The new
The digitalradio sked page is undergoing a few revisions. One new
item is another method of posting your QRG. Check-in and work a few
via http://www.obriensweb.com/sked/
Active skeds:
Fm: K3UK To: NØVPL ST:18:Ø1
QRG:14Ø72 Mode: PSK63
Fm: K3UK To: CQ ST:14:24
QRG:14Ø76 Mode:
Simon,
Just shows what an excellent engineer Pawel is . Pawel designed Olivia and
MT63 and had a part to play in PSK with slowbpsk.
And thanks to those like yourself Patrick and others, we get to play with the
outstanding software that lets us communicate with Powels modes. Thank you all.
PSK lowercase will be interesting, as *everyone* on this list knows lowercase
PSK is faster and more robust, yet many Hams send everything in uppercase -
calling CQ DX in uppercase is just - daft :)
FWIW The only difference between Contestia / RTTYM and Olivia is that Olivia is
a 7-bit char
Simon,
There does seem to be a slight improvement in PSK31 with lowercase. I put both
upper / lower through the simulator with identical path parameters. Had to
increase the SNR quite a bit to get the print to come though though - even the
mid-latitude disturbance can be a bit hard on this
FWIW The only difference between Contestia / RTTYM and Olivia is that
Olivia is a 7-bit char set, Contestia 6-bit and RTTY-M 5-bit.
Certainly makes for interesting mode characteristics Simon, especially when
you compare robustness vs. character speed.
I've noticed that Olivia 4/500 has the
Rick,
Re: Polar Paths
There's no doubt that the polar ionosphere can be brutal and it sounds like you
had a 'double whammy in your case where signal strength was an issue in
addition to polar distortion.
The RSID may have been useful in this case providing Ken was using it at the
time. You
Am a gen. operator call sign KC8SVE and am needing help to set my radio and
comp
Welcome,
What help do you need?
Andy K3UK
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