Hi Scott: I was looking at the schematic in the YahooGroups file area to try and see what the EQ jumper actually does. I am missing a few packets from time to...
Tim: I too had a lot of trouble with decode on an OT2B (second revision of OT2), the new OT2m that I have just put in service appears to be much better, but I...
The EQ jumper is in the input filter section, near C2 and C3. It just switches C3 into the audio input path and flattens the filter response. It's pretty...
... Just to clarify what I am trying to do. I want to plug my Ultimeter II into the front RJ-11 port of the OT2m. I want to use the OT2m as a WX station,...
The 1-wire input is NOT an RS-232 port - I probably need to make that clear in the documentation. You'll need to connect the UII to the rear panel data...
... some of ... I must be looking at an old schematic (the one in the files area of the tracker2 group). I don't see C2 in the demod section. There is a C2...
I think this may be dependent on the timing of the data coming from the GPS receiver. I've seen it happen occasionally myself after some changes to the GPS...
Can anyone tell me what the items listed by this command mean? A few are obvious, others ????. What is considered good for the ratio of RX to FCS? Is there...
Oh well, you could always add a TIMEZONE command (+13 to -13, 1/2 hr steps) as well, if you were feeling so inclined. Might have it's uses in conjunction with...
There's not really any 'good' ratio of FCS/RX, because FCS will increment whenever any noise manages to look like a packet for at least 16 bytes. You can just...
... Ok I created a "Y" cable to separate the the A and B ports. I want to hook my javAPRSSrvr and Ultimeter II to the T2. Is there a preferred port for each of...
... Tim, Take a look at t2protoc-schematic.png , Schematic for Proto C revision in the files section and you'll see the EQ jumper and C25 (.1) that gets put in...
Would the T2 still be available in kit form? The only one that I see on the web is the assembled model of OT2m (with tiny surface mounted parts inside). What I...
I don't have any plans to make kits beyond what I've got left on hand for parts. The production version would just be too crowded and more expensive using...
... I can't help solve the problem other than say "me, too". I saw it just today. I was monitoring my T2-135 with my Kenwood TM-D700. Everything looked normal...
Once upon a time, after I blew three 2n7000s, I retrofitted a MAX232 onto my T2 (beta A, I think). Scott helpfully supplied a patch command to allow my to...
... Ah, now I know where to look in the future. Only there shouldn't be a future - if I need to do much more hacking, I'll get another T2. And probably a...
... Thanks Hank...that sheds some light on the input circuit, but I'm still having problems with the T2 being either a little deaf or not decoding a number of...
I've had a couple of reports, but nothing consistent. You're always welcome to send it back for testing, and I'll run a full decode test against it to see how...
I have been reading about remote administration of the OT2. ... Is the Callsign for the authlist good for any SSID or is it SSID specific? AA4VU vs. AA4VU-13 ...
... Any SSID. Just enter the callsign. ... Nope. ... Have you used stty to set the baud rate? I think I had to do that on my Linux box before I could do...
... baud rate and other comm settings are not set this way, plus you don't get to see any feedback. use your favorite terminal application - minicom, kermit...
... One cheat that sometimes works is to say cat < /dev/ttyS0 & to hold the terminal open, then use stty to set the speed, etc before using echo. But...
... The ports should be identical, except for the lack of a console function on port B. ... You'd have to add the AMODE or BMODE KISS command. Better to leave...
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