Usually, you will make your own cable. Look up the pin out for your radio’s
connectors. Most mobiles have a TNC connector on the back, a mini DIN that
looks a lot like a PS/2 connector.
For radios without a TNC connector, you have to be creative. It usually
involves an interface box like a
Sure, I'll give it a shot.
To connect the TNC to the Model T, you'll need a cable with two DB-25 male
connectors, or the right adaptors and dongles to get an equivalent. In my
setup I have a DB25 male to DE-9 female cable on the T102, then a DE-9
gender bender, and another DE-9 female to DB-25
Alex,
Can you help me with a similar setup? I think I found a TNC like yours in
the garage. Where do I get a cable for the radio? What radio are you
using? Can I use a cheap Baofeng for this or do I need an HF radio?
Thanks,
Jeff
On Wed, Apr 14, 2021 at 11:54 AM Alex ... wrote:
> Figure
Around the same ear I had my mobile packet rig setup - A 73 Toyota Corolla
with a Yaesu Memoriser, and TAPR TNC2, and a Model 100.
I remember leaning over at the traffic lights one afternoon, typing "Not
now Kevin, I'm driving"
Those were the days before people had mobile phones and we could
I ran a packet station on the Iditarod Race start line in 1987. the
equipment was a Yaesu FT221R transceiver a MFJ 1270 TNC and a Model 100.
We were the backup for the starting timer. Great Fun and a Little cold.
The rig was a red Toyota Land Cruiser, and we parked on Knik Lake. 73's
to all
Douglas,
You make a very good point. I'd never even considered that the UART might
get in the way. After a look over the datasheets for the chip, there
doesn't seem to be any way to disable the stop bit functionality and turn
it into a dumb shift register.
Now I'm wondering if the old modem chip
All of what you guys are doing is really rad! I bought a bunch of old
packet stuff a few years back hoping to connect it up with my m100. Never
got around to it. It would be great to get some guidance on that.
On Sun, Apr 18, 2021 at 9:35 AM Brad Grier wrote:
> Re: 8201a docs etc -- this is
Re: 8201a docs etc -- this is a helpful site. Not sure if it has
exactly what you're looking for.
https://www.web8201.net/default.asp?content=tech.asp
--Brad
On Sat, Apr 17, 2021 at 6:19 PM Douglas Quagliana
wrote:
> >How much of the 8085's time will be left to do anything useful at all
>
In the mid 80's the CPU utilisation was the primary reason why everybody
used intelligent Packet Radio TNC's.
Nowadays, there are groups of people who use AtMega368 chips to do that
function. Small, cheap, easy to source.
http://www.mobilinkd.com/2014/09/11/arduino-kiss-tnc/
Kindest regards,
>How much of the 8085's time will be left to do anything useful at all with
the data with it essentially bit-banging the waveforms like that?
Probably not much CPU time will be left while receiving. But packet radio
is half-duplex on HF and VHF. If you are connecting to a packet radio BBS
or
How much of the 8085's time will be left to do anything useful at all with
the data with it essentially bit-banging the waveforms like that?
On HF, packet radio is 300 baud using Bell 103 tones already. I've done
some reading over the schematics and it looks like the onboard modem can be
put into
All,
I haven't tried the Bell 103 modem, but the cassette port is (in theory)
fast enough to see 1200 baud AFSK. The cassette port is supposed to run at
1500 baud. To receive AX.25 packet you would need to count the time between
zero crossing similar to the way the cassette port does it now,
On 15/4/21 7:39 pm, Doug Jackson wrote:
From memory the SCC could help out with the encoding which was something like
HDLC or SDLC.. that's rattling my brain cells though.
That's right, the ZSCC handles H/SDLC natively. I'd used it on a prior work
project that required that, so was intimate
>From memory the SCC could help out with the encoding which was something
like HDLC or SDLC.. that's rattling my brain cells though. I remember
that the Tnc2 had a state machine to do that.
Doug
On Thu, 15 Apr 2021, 8:05 pm Alex ..., wrote:
> What would the Zilog SCC have gotten you? A
What would the Zilog SCC have gotten you? A couple extra serial ports for
additional modems?
On Wed, Apr 14, 2021, 23:41 Daryl Tester <
dt-m...@handcraftedcomputers.com.au> wrote:
> On 15/4/21 1:23 am, Alex ... wrote:
>
> > Figure this would be a fun one to share with the [M100] list. :)
>
>
On 15/4/21 1:23 am, Alex ... wrote:
Figure this would be a fun one to share with the [M100] list. :)
Sometime last century (if not millenium) I attempted to build an add on card
for my M102 to run a Zilog SCC chip for the purposes of packet radio. I only
remembered this because I came across
Figure this would be a fun one to share with the [M100] list. :)
I recently bought a big box of random ham radio packet gear which included
a bunch of old TNC modems and assorted cables. Unfortunately, it turns out
the quad serial port card in my desktop PC is dead.
Enter the Tandy 102 to the
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