> I will be doing (4) as soon as I've found the time to make up a TTL to
> RS232 board.
I suggest trying it without anything fancy.
All the GPS toys I've tried work fine without any conversion gear.
The normal TTL to RS-232 chips include an inverter. That will break things
unless you add anot
Quoth Hal Murray at 2008-03-06 20:07...
>> I will be doing (4) as soon as I've found the time to make up a TTL to
>> RS232 board.
>
> I suggest trying it without anything fancy.
>
> All the GPS toys I've tried work fine without any conversion gear.
>
> The normal TTL to RS-232 chips include an i
Matthew Smith wrote:
> Quoth Hal Murray at 2008-03-06 20:07...
>
>>> I will be doing (4) as soon as I've found the time to make up a TTL to
>>> RS232 board.
>>>
>> I suggest trying it without anything fancy.
>>
>> All the GPS toys I've tried work fine without any conversion gear.
>>
>> Th
On Thu, Mar 6, 2008 at 3:08 PM, Matthew Smith <[EMAIL PROTECTED]> wrote:
> So my Trimble ACE II and Moto Oncore modules will tolerate RS232 levels
> without conversion? Are we absolutely sure on this - I don't want to
> fry anything!
Well, I plugged my Oncore UT+ into my PC and it didn't work
>> So my Trimble ACE II and Moto Oncore modules will tolerate RS232 levels
>> without conversion? Are we absolutely sure on this - I don't want to
>> fry anything!
Bruce, Chris, thanks for the confirmation.
I'll go back to the idea of using the MAX232 equivalent as originally
planned.
I'm a
Chris Kuethe wrote:
> On Thu, Mar 6, 2008 at 3:08 PM, Matthew Smith <[EMAIL PROTECTED]> wrote:
>
>> So my Trimble ACE II and Moto Oncore modules will tolerate RS232 levels
>> without conversion? Are we absolutely sure on this - I don't want to
>> fry anything!
>>
>
> Well, I plugged my
Matthew Smith wrote:
>>> So my Trimble ACE II and Moto Oncore modules will tolerate RS232 levels
>>> without conversion? Are we absolutely sure on this - I don't want to
>>> fry anything!
>>>
>
> Bruce, Chris, thanks for the confirmation.
>
> I'll go back to the idea of using the MAX232 e
I have a JK device named a "Thermystal". The
label says "1000 KC" 43 MMFD (any age clues
there?:-)). So I'm guessing it's an ovenized
parallel-resonant crystal which is (was?) on
frequency with 43 pf in parallel. This is a
fairly large unit, about 1.75 X1.25 X 3.25 inches.
It has an ordinary oct
