Cool, I'll check it out today. Thanks. Scott ... From: opentracker@yahoogroups.com [mailto:opentracker@yahoogroups.com]On Behalf Of Ian ZL1VFO Sent: Sunday,...
1393
Michael Cook
blueschism
May 3, 2005 1:34 am
OK, I give in. I would be very interested to speak with someone who actually has an IC-V8 working with an Opentracker. Thanks, Mike KE7BEB...
1394
scott@...
n1vg
May 3, 2005 2:09 am
What sort of problem are you having? I'm heading out of town tonight, might be late tomorrow before I'm back answering emails and shipping orders. Scott ... ...
1395
Michael Cook
blueschism
May 4, 2005 1:08 am
Mike wrote: I would be very interested to speak with someone who actually has an IC-V8 working with an Opentracker. ... Scott wrote: What sort of problem are...
1396
scott@...
n1vg
May 4, 2005 4:17 am
Hmmm. I really can't imagine the IC-V8 being that much different from the others - I run a T2H just fine with the default resistor value. As for the lifted...
1397
Michael Cook
blueschism
May 4, 2005 9:43 pm
Fixed, mostly. ... This was RF feedback causing the OT to oscillate the TX. I put the signal from the radio into my IFR and the problem went away. So I put the...
1398
KD7JYK, 49H7KR
facility_406
May 4, 2005 10:19 pm
The Xmit is so fast that the IFR Mod meter doesn't have time to stop swinging. Set the baud rate to 300 baud. That should slow it down... Kurt...
1399
Michael Cook
blueschism
May 5, 2005 5:43 am
... Double whammy! Loading the 300 baud firmware did 2 things. 1) allowed for deviation adjustment 2) cleared out bad firmware The deviation adjusts from about...
1400
Ian ZL1VFO
zl1vfo
May 5, 2005 11:59 am
1401
KD7JYK, 49H7KR
facility_406
May 5, 2005 4:24 pm
You tested at 300, all was OK, was this in the car or on the bench? You get rapid blinking in the car... I have a Toyota Celica with a 2m radio inside. When...
1402
tech_wing
May 6, 2005 2:16 am
When the Opentracker parses a current position from the GPS stream, is it rounding to the nearest .01 minutes or truncating? That is, the GPS data stream is...
1403
scott@...
n1vg
May 6, 2005 2:41 am
You're right, it's truncating. Hadn't really given it much thought. I'll put an item on my to-do list to look into handling the added precision. At the very...
1404
scott@...
n1vg
May 6, 2005 3:35 am
The board house that produces the OpenTracker PCBs has a special going right now that's got me eager to try some new hardware design ideas. I'm not planning...
1405
Ian ZL1VFO
zl1vfo
May 6, 2005 10:38 am
I've a couple of suggestions for consideration -
Extend J1 so a monitor interface board with it's MAX232 and 9.8204MHz
oscilator can be plugged in. Good for...
1406
Jan Marius Evang
lb4pe
May 6, 2005 2:08 pm
... My wishes (realistic): - pushbuttons (like you suggest) - 5V out ~200mA to power a "mouse"-style GPS. Ideally with a 6pin mini-din socket wired like a...
1407
KD7JYK, 49H7KR
facility_406
May 6, 2005 4:26 pm
... I set of row of solder pads with associated firmware changes to connect a dip or rotary sitch to to select mic-e settings out in the field without having...
1408
Curt Mills
we7u
May 6, 2005 8:47 pm
... All of these sound great. I'm interested in the RFI fixes and the power protection mostly. The larger regulator would also be useful at times, perhaps...
1409
Curt Mills
we7u
May 6, 2005 8:47 pm
... This is great, except that the OpenTracker doesn't implement Mic-E protocol, so can't send those types of messages anyway. Of course someone could write...
1410
Scott Miller
n1vg
May 6, 2005 10:32 pm
... There's also the possibility of a regulator like the LM-317T that could be adjusted for different voltages. ... NiCd probably wouldn't be too bad. Li-Ion...
1411
Scott Miller
n1vg
May 6, 2005 10:33 pm
Again, not enough I/O pins or firmware space. But the connector layout is a valid concern. I'd rather not get into heavily customized enclosures - if ...
1412
Scott Miller
n1vg
May 6, 2005 10:35 pm
... It does add some design challenges - the traces need to handle a lot of current, and it has to dissipate some heat. Might be best to have a metal case... ...
1413
Michael Cook
blueschism
May 6, 2005 11:41 pm
Since it hasn't been mentioned... I know this is a bit off the path, but what about an open pocket tracker? Is this idea in the works at all? I'm going to be...
1414
KD7JYK, 49H7KR
facility_406
May 7, 2005 12:20 am
"This is great, except that the OpenTracker doesn't implement Mic-E protocol" Whoops, well, dang.... Kurt...
1415
scott@...
n1vg
May 7, 2005 12:41 am
I'm not an RF engineer, so designing the transmitter is beyond me at this point. The HiValue/Byonics Pocket Tracker has some factory assembly, so getting some...
1416
scott@...
n1vg
May 7, 2005 12:48 am
Good suggestions, and you're right about the power switching circuit. Curt Mills provided a schematic for just such a circuit, and I've been meaning to post...
1417
Curt Mills
we7u
May 7, 2005 1:21 am
... To be perfectly clear, I provided an image of a schematic I drew up (using gschem to draw it) that used a couple of FET's to do high-side switching. I...
1418
Michael Cook
blueschism
May 7, 2005 1:29 am
I'd like to offer a fully assembled transmitter, but that would mean getting FCC certification, which isn't going to be fun, and probably precludes using an...
1419
scott@...
n1vg
May 7, 2005 3:31 am
My understanding is that any intentional radiator must be certified. That's not the same as type acceptance, but it's still money. Even for my TNC project...
1420
Michael Cook
blueschism
May 7, 2005 6:05 am
My understanding is that any intentional radiator must be certified. That's not the same as type acceptance, but it's still money. Even for my TNC project...
