hi Kevin; FYI on the 480SAT, if you just get the ALC showing one bar on tx, your signal is darn good.
much more and it starts to overdrive........ I notice that when I change modes
and power levels with
the 480, I have to adjust the audio sometimes. I run 40w PSK and 95 Watts on
Olivia etc etc, and the great cooling system
keeps everything purring along
John
VE5MU
----- Original Message -----
From: Kevin & Natalia
To: digitalradio@yahoogroups.com
Sent: Monday, March 12, 2007 4:11 PM
Subject: Re: [digitalradio] Re :bad PSK transmissions
Hi Guys (and Gals)
With regard to Bad PSK signals, will this be affected if the TX station is
close by? A normal SSB station close by will generate a wide signal if close by.
Why I ask.
Yesterday, while tuning around I found 2 strong signals in the waterfall, and
one could see the main signal, and then 2 spurries either side. I was able to
decode the PSK without any problems. The waterfall was thick in display,
showing the signal was strong. I even listened to the received signal, and it
sounded okay.
IMD was around -25dB
Both stations were close, like within 1200kms, one in ZL7 (a portable KH
station) and the other a VK4. I am in ZL1, just south of Auckland, NZ. All the
other signals in the waterfall looked good, and they were JA's, RU's, and some
European.
So what is a good PSK signal? And in saying that how would I know if mine is
running correctly? I run about 40-50 watts into a Kenwood TS-480S/AT, and have
used my ear to determine the TX audio. I have not had any complaints about it.
So if you see my callsign, and it's too wide please let me know what's wrong.
Regards
Kevin, ZL1KFM.
PS: 20mtrs has been very quiet down here, I am looking to try out some HamPAL
Digital SSTV on 14.233Mhz sometime.
Get Skype and call me for free.
----- Original Message -----
From: James Wilson
To: digitalradio@yahoogroups.com
Sent: Tuesday, March 13, 2007 10:39 AM
Subject: Re: [digitalradio] Re :bad PSK transmissions
I completely agree with this, when I first got my ticket, I would call CQ
on the local repeaters, and of course I identified myself every 30 seconds just
to be sure.
Someone told me, you don't need to call CQ and people snicker when Noobs do
it. I was embarrassed but was happy to know how to conduct myself in for the
future.
Also this past weekend I was told that my signal was QSB while using PSK31.
This is the first time I ever got a report like this and at first I freaked
out. But I was still happy to hear that something might be wrong. Looking at
it I think I might be over driving my radio. My point is that most people are
happy to hear about issues and would prefer to be told by a fellow Ham then the
FCC.
K6WRJ
----- Original Message -----
From: Mel
To: digitalradio@yahoogroups.com
Sent: Sunday, March 11, 2007 1:53 PM
Subject: [digitalradio] Re :bad PSK transmissions
Regarding the comments on poor quality PSK transmissions, rather than
hoping there are "observers", who on seeing such a terrible
misdemeanour as a wide overdriven transmission,who will instantly
issue a Pink Slip, why not contact the operator yourself?
In days past, if a signal was "rotten" someone would contact him and
say " I called you because your signal is very wide Old Man, sorry to
have to tell you but you are splattering all over the band, and my
jolly old chums are getting a wee bit hairy about it, hope you don't
mind "
The offending chap would apologise profusely, hope that he hadn't
caused too much of a bother, and then disappear to check out what the
problem is.
Sounds simple enough to me.
Kind regards, Mel G0GQK
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