Rick I think that you are pretty much looking at RTTY freqs, which usually
are 2 or 3 KC above the PSK signals, and upward from there. This suggest
calling freq for other digital modes, therefore should be a bit above or
below the combination package of PSK/RTTY so as to get them out of each
others way. As to giving your VFO (dial) freq, that is not the normal way
PSK is spotted, nor any other mode dependant on a "waterfall". As you say,
everyone is a bit different as to where their waterfall "pointer" lies on a
digital signal. It is much better to just spot the actual freq where the
audio signal comes out on the waterfall. I.E. 14.0731. No matter who
clicks on a spot like that, their "trace" comes out on the waterfall as that
freq. We dont care where each others dial freq is - but the location of the
signal. In your case its dial plus 1500 - In mine its dial plus 1000,
other will have similar setting according to where their sound card best
passes a signal (sweet spot), and there is no qestion where the transmitting
signal is found. Double click a spot, and bang- your reciever/transmitter
freqs are set properly, and no one has to look around to see where in the
world the spotter found it.
I am a bit perplexed about 160 meters. It is such a wide band, with so few
signals per KHZ, I wonder why anyone wants to send SSB, for instance, down
in the low part. We should have sub bands down there, even more than the
other bands, but dont. Why anyone would want to send SSB on top of ongoing
CW signals is beyond me, but they do it all the time there. Thus, I think
your suggestion for PSK at 1.808 or even lower is much too low for that
activity. How about bringing it up to 1.850 and have cw below that and SSB
above it? If not - why not? Most all of us have antenna tuners these days,
and we dont run much power on PSK anyway, so it hasnt much to do with where
our antennas are "cut". I could certainly understand the mix-mash mess on
160 back when radio location signals abounded on the band, and hams in
specific areas of the states/world were forbidden to operated in portions
near those signals. That is no longer the case and we can pretty much
transmit wherever we want on that band. We just need some gentlemens
agreement (I.E. subbands) to protect signals from inteference from different
modes.
Danny Douglas N7DC
ex WN5QMX ET2US WA5UKR ET3USA
SV0WPP VS6DD N7DC/YV5 G5CTB all
DX 2-6 years each
.
QSL LOTW-buro- direct
As courtesty I upload to eQSL but if you
use that - also pls upload to LOTW
or hard card.
moderator [EMAIL PROTECTED]
----- Original Message -----
From: "KV9U" <[EMAIL PROTECTED]>
To: <digitalradio@yahoogroups.com>
Sent: Thursday, December 21, 2006 5:24 PM
Subject: Re: [digitalradio] Clarification : Establishing digital
calling/beacon frequencies
> How about using PSK31 as the "baseline" and then transmit any other
> digital mode a kHz or so up from the highest PSK31 signal that is on at
> that time?
>
> That is pretty much what I do on 80, 40, and 20.
>
> I would very much like a spot frequency to operate on for 30 meters
> which seems grossly underutilized and is a superb digital band. I like
> 10.133 for a dial frequency. It clears a high power government digital
> station by a few kHz, that is frequently on in my reception area, and I
> like anything with repeating digits:) I wonder if hams do not tend to
> operate there because they do not have an antenna for that band?
>
> On 10 meters, I generally put the dial at 28.120 and on 6 meters at
> 50.290. I have not done much with other bands except a little bit with
> 160 around 1.808, but I guess I am a bit high and probably should try
> 1.805. But I love the number 1808 with my repeating my favorite number
> twice. As you can see my dial frequency selections are done with great
> scientific analysis:)
>
> My actual transmitting frequency is going to be nominally 1500 Hz above
> my dial frequency. This will vary for each user depending upon their
> particular equipment and operating preferences, but I suspect that most
> will be around 1000 to 1500 Hz higher than their dial frequency.
>
> Are there any hams who find that they prefer other center frequencies
> due to some reason or due to their rigs filtering requirements?
>
> 73,
>
> Rick, KV9U
>
>
> Andrew J. O'Brien wrote:
>
> >Just to clarify my original point...
> >
> >I'm looking to establish a suggested calling frequency for ALL digital
modes except CW, PSK31, RTTY, SSTV , PACTOR , and ALE(data ALE).
> >
> >My suggestion is that members of this list utilize a common frequency to
call CQ and/or use attended beacon features within their digital software.
This would be for Olivia, Dominio EX, Throb, PSK63/125 , , MT63 ,Hell CHIP,
MFSK16/8, PAX/PAX2 , THROB, experimental AX25.
> >
> >The idea is simply to make it easier to find stations to work rather than
trawling the bands in 300-500 Hz ranges looking for potential signals.
> >
> >My experience suggest that even on good propagation days, say on 20M, the
amount of simultaneous QSOs in the aforementioned modes rarely exceeds 3-5 .
When it is at the 5 level, it is often 2-3 Olivia stations, maybe 1 MFSK16
and one Hell. I will argue that MOST of the time it is less than three
simultaneous QSOs . Sometimes NO signals at all.
> >
> >Thus, the amount of interest in the "exotic digital modes " is at such a
level that we would benefit from clustering, and our use of a calling/beacon
frequency would not likely clutter up the portion of the band.
> >
> >If we established 4 beacon frequencies (80,40,30, and 20M) you could
easily monitor the bands via scan features in the radio .
> >
> >Again, the idea would be just to "meet" on the calling frequency and move
further up/down the band for extended conversation. I am NOT suggesting a
different calling frequency for each mode.
> >
> >20 M seems like the easies band to establish a data frequency that allows
worldwide participation. The others are more complex due to varying regiona
l bandplans. I will read the feedback I have received so far and suggest
some frequencies to try this weekend.
> >
> >
> >
> >
> >
> >
> >------------------------------------------------------------------------
> >
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> >Version: 7.1.409 / Virus Database: 268.15.25/593 - Release Date:
12/19/2006
> >
> >
> >
>
>
>
> Connect to telnet://cluster.dynalias.org a single node spotting/alert
system dedicated to digital and CW QSOs.
>
>
> Yahoo! Groups Links
>
>
>
>
>
> --
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> Checked by AVG Free Edition.
> Version: 7.5.432 / Virus Database: 268.15.26/594 - Release Date:
12/20/2006 3:54 PM
>
>
