Re: Low cost GPS receiver?

[6eqtctnl24yu]

Greetings --

Having spent my youth working with the PDP 8 and PDP 11 while an undergraduate, I have a few answers to the question you posed:

Fine, but how do I hook up a ublox8 to the 20 mA current loop serial port (that I was previously using for an ASR33) on my PDP8?

I won't give you historic details about how I solved a similar problem back in the , because you can use a Lab Jack device and easily connect the UBlox M8

GPS module to your PDP8

Lab Jack URL>>>  https://labjack.com/

Good Luck!

Riley

On Thu, Mar 30, 2023 at 8:31 AM Greg Troxel <gdt_at_lexort.com_6eqtctnl24yu@duck.com> wrote:

Paul Fertser <fercerpav@gmail.com> writes:

> BTW, common (back then) MAX232 RS-232 PHY was meant to be used with 5V
> Vcc and so it was doubling it to produce -10 V / +10 V
> signals. MAX2323 was for 3.3 V power, so the resulting waveforms were
> -6.6 V / + 6.6 V. I do not remember reading about any compatibility
> issues with either.

Fine, but how do I hook up a ublox8 to the 20 mA current loop serial
port (that I was previously using for an ASR33) on my PDP8?