Hi Ron,
Not clear from your message is if you've got sound card connections made up
also. I'm having to guess that if MixW and HRD are working for you using
data modes over the air that you do have a working sound card setup.
The CAT cable is only going to be able to set and read the frequency
30 years seems a stretch - since I think Linux first saw the light of the
Internet in about 1992. Let's see - 30 years ago - that's just after people
started pirating paper tapes of Microsoft Basic... grin
73, Bob, KD7NM
-Original Message-
From: digitalradio@yahoogroups.com
Hi Dave,
First would be to make sure there really isn't support for it. If you can get
to a bash shell, and get logged in as root, you can run ifconfig, and see if it
lists the USB ethernet adapter. I say this from the perspective of an even
older laptop, for which I had (of all things) a
packet collisions that could be
caused by the TNC not hearing all packet traffic on the frequency.
I guess the best solution would be choose a packet frequency thats used very
rarely by other groups and leave the Digi as a open machine.
Thanks.
--- In digitalradio@yahoogroups.com, Bob Donnell kd
I'm with Vince on a number of points.
If there's really a serious emergency, that will benefit from packet radio,
chances are that the hobbiest hams are not going to be on the air, unless
it's in support of your goals. I think it's far better to have the local
community exercising your
And further, this thought should be considered as VHF FM, or VHF SSB? In a
base/mobile or mobile/mobile environment, SSB on VHF works over much greater
distances.
With voice communications, VHF SSB benefits from having flutter resulting in
the desired signal amplitude going up and down, while
Martin:
I'd bet you were thinking of ISA instead of IDE - and probably the dual
opto-SCC card developed by your countrymen back then.
Ross:
JNOS is probably the most actively maintained version of NET which became
NOS, back in about 1990/1991 time frame. Current versions of it can be run
I think part of the problem is that in the marketplace, high power PIN
diodes that have a carrier lifetime for operation down to 1.5 MHz, and can
also handle a couple of hundred watts, don't appear to be easy to find.
It's probably one of those problems where the market has moved to higher
Looks interesting. I wonder if enough information will be made available to
allow duplicating the modem under other operating systems and platforms.
Hopefully, the development team is actually doing parallel development for
use in *nix environments.
-Original Message-
From:
Recollection is that the SignalLink has its own internal VOX circuit, so can
be independent of the VOX settings of the rig - except if the user makes the
mistake of turning VOX on in their rig, and the rig has a longer delay time
than the SignalLink does - which is likely.
Either way, I cringed
Hi Mike,
I suspect that the USB port on your phone will not be useful for using the
phone to control anything. That's because most USB devices are not
configurable to act as USB host devices. Most likely, your phone is in the
same category - it's able to be supported by a host computer, as a
One of the other things I'd do, sooner rather than later, is to remove the
hard drive from that PC, and either install it in another PC (like the ham
shack machine) or in a USB hard drive enclosure, and see if the drive is
recognized at all on the other PC. If it is, then copy over to the
Where practical and available, instead of using a split-core ferrites, use a
ferrite toroid. The split core will never achieve the level of magnetic
coupling between the two halves that the toroid will, with its continuous
magnetic structure, and all else being equal, that makes the toroid a
Hi Doug,
Before you commit a lot of effort to learning about how to use dumb
digipeating, i.e. using via, try to find out if there are still
operational nodes in your area. These are generally much more efficient
at moving traffic, because they are less dependent on every single packet
On the North American continent, the APRS 2-meter frequency is 144.390 MHz.
APRS stations don't operate in the connected mode, so you're not going to
connect to other users. However with appropriate software (and there are
several APRS-specific programs out there) you can exchange one-line
Hi Dave,
Rather than switching all eight lines (so you might be able to use a cheaper
and easier to wire switch) I'd look at which lines are used for what
purpose, and make some intellegent decisions about what you're using, and
what needs to be switched. For example, you shouldn't need to
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