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Re: TT4 with Peet Weather Station and APRS map
Is the root question essentially whether you can feed one Port PEET data and receive Data from your radio's audio on the other Port as KISS? It may be a trick question, but it seems to me the answer is simple: Yes, you can do that.? You can't "split" one port's TX and RX channels into independent protocols, but you can split that of each port. How you developed the PEET data with your magical network wizardry should not effect this as far as I can see.?
73,
Allen AF6OF
On Saturday, May 20, 2023 at 07:59:36 AM PDT, Rob Giuliano via groups.io <kb8rco@...> wrote:
I am not quite following this idea.
The TT4 has 2 ports, so you can make 2 connections ->
?? B. Peet Weather
?????? You appear to have something setup like this:?? Peet -> Pi (Java) -> TT4 (port B) -> Radio
?????? Note:? this is one way traffic.? Nothing from the Radio or TT4 goes to the Peet - won't do anything with it anyway.
???????????????? You don't mention how you have the Peet -> Pi and Pi -> TT4 connected. Two USB to RS232 dongles like this
???????????????????????? Peet -> /dev/ttyUSB0 Pi (Java) /dev/ttyUSB1-> TT4 (port B) -> Radio?
?? A. Where do you want the TT4 port A to go?
?????? If you are trying to get that into the same Pi, you will need a third USB to RS232:
???????????????????????? Pi (APRS/LinBPQ) /dev/ttyUSB2 <=> TT4 (port B) <=> Radio?
?????? Note:? this is two way traffic.? traffic to and from the Radio go through the TT4 to the attached computer.
All settings for the APRS/LinBPQ would have to reference the 3rd (/dev/ttyUSB3) device.
Is that what you are trying to do?
-------
Rob KB8RCO
|
Re: TT4 with Peet Weather Station and APRS map
I am not quite following this idea.
The TT4 has 2 ports, so you can make 2 connections ->
?? B. Peet Weather
?????? You appear to have something setup like this:?? Peet -> Pi (Java) -> TT4 (port B) -> Radio
?????? Note:? this is one way traffic.? Nothing from the Radio or TT4 goes to the Peet - won't do anything with it anyway.
???????????????? You don't mention how you have the Peet -> Pi and Pi -> TT4 connected. Two USB to RS232 dongles like this
???????????????????????? Peet -> /dev/ttyUSB0 Pi (Java) /dev/ttyUSB1-> TT4 (port B) -> Radio?
?? A. Where do you want the TT4 port A to go?
?????? If you are trying to get that into the same Pi, you will need a third USB to RS232:
???????????????????????? Pi (APRS/LinBPQ) /dev/ttyUSB2 <=> TT4 (port B) <=> Radio?
?????? Note:? this is two way traffic.? traffic to and from the Radio go through the TT4 to the attached computer.
All settings for the APRS/LinBPQ would have to reference the 3rd (/dev/ttyUSB3) device.
Is that what you are trying to do?
-------
Rob KB8RCO
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TT4 with Peet Weather Station and APRS map
Greetings from Columbus,
I am currently using my TT4 to transmit Peet weather station data into the APRS network on 144.390 using port B of the "Y" adapter.
That was the easy part....? Now, I would like to receive local APRS traffic from the same radio and TT4 and send it into port A of the "Y" adapter, in KISS mode, so I can show the RF reports on a mapping application.
Stated differently, I need to route radio receive data to tty port A
(AMODE=KISS), and sensor output data from the weather station to tty port B (BMODE=PEET).
Like this:???
Peet Mode ----> TT4 ----> Transmitter
Receiver ----> TT4 -----> KISS Mode APRS map computer
Is this possible, using the same TT4 and radio?
Some specifics:
The Peet weather station data is actually coming from a Java app I wrote for a Raspberry Pi, that converts Ecowitt hub data into Peet weather station data, so I can use the PEET mode of the TT4 to put APRS weather station reports over RF. My Java app also displays my local weather station data, as well as super cool, but very scary, real time, NASA Space Weather reports from the NASA API on a 7" display.?
I am trying to display the incoming APRS reports on a map that is included in John Wisemann's LinBPQ package that I have running on a different Raspberry Pi.
I am hoping I can do this on two separate ports, just to make it more universal - one port for Peet data and another port for APRS data.
Otherwise, it turns into a serious kludge, whereby I will have to try and do it all one one port.
Thanks for reading!
John, N1CTF Columbus, Ohio
?
?
?
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Re: New TinyTrak Group Member 8000FA Questions.
Steve,
Excellent! The MT-8000FA might be over 84 years old ( In dog years...) so it has a right to have some of its joints to get a little crepitus. Keep in mind that the Gate Voltage will also decay with your Supply Voltage, so it is not a good strategy to set it for minimum and have it unexpectedly fall below the threshold of operation.?
73,
Allen AF6OF
-----Original Message-----
From: Stephen Grob via groups.io <sgrob@...>
To: [email protected]
Sent: Mon, May 8, 2023 12:30 pm
Subject: Re: [TinyTrak] New TinyTrak Group Member 8000FA Questions.
Thank you Allen. I can not tell a lie. I had the meter hooked on to the PCB at the proper points and never saw the voltage change from "0", so yes I was measuring when the mt8k was not transmitting. On closer examination I found one of the solder joints connecting the mt8k and the DE9M had cracked and broken. And one of the wires from the gps puck was down to one strand at the DE9F.?
Looking closer to the trim pot I see the graduations and now know that it was set to 2 volts which, according to the manual, produces 0 watts at transmission time. I turned it 1 graduation counter clockwise and now see 2.5 volts while transmitting. A ride around the test path shows that every transmission now shows up on aprs.fi. Success!?
Now, to build a sturdy but light weight 1/4 wave ground plane antenna.?
Thanks again for your guidance.
73
Steve
KD9AER
|
Re: New TinyTrak Group Member 8000FA Questions.
Thank you Allen. I can not tell a lie. I had the meter hooked on to the PCB at the proper points and never saw the voltage change from "0", so yes I was measuring when the mt8k was not transmitting. On closer examination I found one of the solder joints connecting the mt8k and the DE9M had cracked and broken. And one of the wires from the gps puck was down to one strand at the DE9F.?
Looking closer to the trim pot I see the graduations and now know that it was set to 2 volts which, according to the manual, produces 0 watts at transmission time. I turned it 1 graduation counter clockwise and now see 2.5 volts while transmitting. A ride around the test path shows that every transmission now shows up on aprs.fi. Success!?
Now, to build a sturdy but light weight 1/4 wave ground plane antenna.?
Thanks again for your guidance.
73
Steve
KD9AER
|
Re: New TinyTrak Group Member 8000FA Questions.
Steve,
Just to be clear, you are reading the voltage on the gate of the amplifier during the time the device is transmitting? It is normally at zero Volts. If you don't see any voltage on the amplifier gate ( Second pin from the left)? during transmissions, irrespective of the pot setting ( It had graduations) the odds are that it has been in the hands of a ham who only had a screwdriver and a hammer, and the pot is damaged. Check the voltage on the INPUT of the pot during transmissions.
The Gate Voltage is not an absolute determinant of the power output; it is also dependent on the RF exciter stage power, and the power supply voltage and impedance, or ESR. Almost all of the power adjustment in the?trimmer pot is within a few degrees?of rotation of maximum. It is not a volume control, it is a bench setting. Turn it "full blast", and if the amp is working properly, the MT-8000 should draw about 1-7 to 2 Amperes during actual transmissions.?
If you can't get it going, let me know and you can send it back and I can test it to see if it is repairable.
73,
Allen AF6OF
Although I can see the aprs packets being received and translated on the Kenwood TMD710GA mounted in the same vehicle as the mt8k, I do not see any packets being posted on no matter how close I drive to the digi. I¡¯m thinking the power trimmer pot is not positioned correctly but there is no indicator that shows the physical position. I do not have a watt meter that can read 1 or 2 watts so I need to measure the Gate Voltage to get an idea of where the pot is set as per the mt8k v1.1 manual. Unfortunately the voltage between GND and the Enable Voltage Test Point reads 0 Volts. Turning the pot clockwise or counter clockwise 1/8 of a turn makes no difference - still 0 volts. I am using a 3000mAh 3S Lipo battery fully charged at 12.3 Volts and a dummy load.?
What am I doing wrong?
73 Steve KD9AER ? Begin forwarded message:
Subject: Re: [TinyTrak] New TinyTrak Group Member 8000FA Questions.
Date: April 29, 2023 at 6:28:14 PM CDT
I used the diagram you speak of just to get the info on the GPS wire colors. You are right - it confused me too. So I re-soldered the GPS wires using the green wire (GPS TX) on pin 2 of the DE9F which connects to pin 2 (RX) on the mt8k DE9M.It worked! I saw the LED on the GPS puck light up and blink on and off, And the green LED on the mt8k lights up and blinks on and off too. I installed the mt8k in the test vehicle and drove my test course. I saw aprs status messages on the TMD710GA with the remark ¡°Moving¡± and distance and direction info also so the GPS is working. The TMD710GA screen showed that the mt8k was transmitting position reports about every 120 secs as configured and the distance was always about a mile away and direction was behind the vehicle. Unfortunately??only showed one position report. I¡¯m assuming this is due to the low transmit power and lack of close by digipeaters in our area. The one position report shown on??is at the point during my test course that is closest to the Digipeater. Next test I will circle the Digipeater and try to stay within 1 mile of it.
Thanks to Allen, Rob and Rich for all the help. You guys are the best.
73 Steve KD9AER On Apr 29, 2023, at 7:31 AM, Rob Giuliano via ??< kb8rco@...> wrote:
When I look at the website diagram, I see the explanation to be confusing. What are they telling you about the pins on which connector???
The Green TX pin from the GPS will connect to the RX pin of the device. ? So is Green the TX pin or the TX wire with respect to the GPS? ? On the DE9F (female pins), pin 2 is RX, so connects to the GPS WHITE TX pin. ? On the DE9F (female pins), pin 3 is TX, so connects to the GPS GREEN RX pin. ? So the connection is made directly (no intermediate cable to swap 2 & 3.?
On Friday, April 28, 2023 at 09:56:25 PM EDT, Stephen Grob via <sgrob= [email protected]> wrote:
Thanks for the tip on non-MIC-E. I will disable that and SB.
My GPS BR355 does not have a connector on it. Only wires - Green, White, Red and Black. So I soldered the wires to a DE9F accordingly. Here is where I got the pin-outs:
|
In the schematic this website it shows White as TX and Green as RX - opposite from what Robs website says. I will disconnect the White wire and connect the Green wire and try again. I don¡¯t see an LED on the GPS puck but there may be one there hiding under the ¡°GPS¡± label characters. Also I will know the wiring is correct when I see the Green LED on the mt8k light up and stay on.
Thanks for all the great information.
73
Steve
KD9AER
First, I agree with Allen - set a fixed TX rate (non-SmartBeaconing), non-Mic-E and decode it locally from another radio - if possible.
Main website I looked at:?
HOWEVER, since you need whatever interface cable to the MT8k, you should still find a way to verify the RS232 output from the GPS in a PC terminal?
?? A quick search on GPS BR355 shows a module with a 6-pin miniDIN. Is that how yours is configured?
?? If this is a 6-pin MiniDIN (according to the couple of websites) pins 1 (Gnd) & 2 (V+) are used to power the GPS puck.
????? I didn't find any reference to Data lines (in or out)
? ? ? The sites reference an optional (additional) PS-2 to RS232 adapter.? Are you using it, or did you make your own?
? ? ?? ??The BR-355S4(5Hz) uses a proprietary pin-out on the PS2, which cannot be connected directly to any laptop or PC without the use of a cable set (USB or RS232 + PS2 for power).
From your description of your setup, are you sure the GPS has a fix (BR355 says it has an LED indication of fix)?
According to this site:?
?? Green is TX from the GPS (output to attached device) and White is RX to the GPS (input from attached device).
<1682771192566blob.jpg><BR355-S4-400x400CAT_1024x1024.jpg>
New TinyTrak Group Member 8000FA Questions.
Although I can see the aprs packets being received and translated on the Kenwood TMD710GA mounted in the same vehicle as the mt8k, I do not see any packets being posted on aprs.fi no matter how close I drive to the digi. I¡¯m thinking the power trimmer pot is not positioned correctly but there is no indicator that shows the physical position. I do not have a watt meter that can read 1 or 2 watts so I need to measure the Gate Voltage to get an idea of where the pot is set as per the mt8k v1.1 manual. Unfortunately the voltage between GND and the Enable Voltage Test Point reads 0 Volts. Turning the pot clockwise or counter clockwise 1/8 of a turn makes no difference - still 0 volts. I am using a 3000mAh 3S Lipo battery fully charged at 12.3 Volts and a dummy load.?
What am I doing wrong?
73 Steve KD9AER ? Begin forwarded message:
From: "Stephen Grob via groups.io" <sgrob@...>
Subject: Re: [TinyTrak] New TinyTrak Group Member 8000FA Questions.
Date: April 29, 2023 at 6:28:14 PM CDT
I used the diagram you speak of just to get the info on the GPS wire colors. You are right - it confused me too. So I re-soldered the GPS wires using the green wire (GPS TX) on pin 2 of the DE9F which connects to pin 2 (RX) on the mt8k DE9M.It worked! I saw the LED on the GPS puck light up and blink on and off, And the green LED on the mt8k lights up and blinks on and off too. I installed the mt8k in the test vehicle and drove my test course. I saw aprs status messages on the TMD710GA with the remark ¡°Moving¡± and distance and direction info also so the GPS is working. The TMD710GA screen showed that the mt8k was transmitting position reports about every 120 secs as configured and the distance was always about a mile away and direction was behind the vehicle. Unfortunately??only showed one position report. I¡¯m assuming this is due to the low transmit power and lack of close by digipeaters in our area. The one position report shown on??is at the point during my test course that is closest to the Digipeater. Next test I will circle the Digipeater and try to stay within 1 mile of it.
Thanks to Allen, Rob and Rich for all the help. You guys are the best.
73 Steve KD9AER On Apr 29, 2023, at 7:31 AM, Rob Giuliano via ??< kb8rco@...> wrote:
When I look at the website diagram, I see the explanation to be confusing. What are they telling you about the pins on which connector???
The Green TX pin from the GPS will connect to the RX pin of the device. ? So is Green the TX pin or the TX wire with respect to the GPS? ? On the DE9F (female pins), pin 2 is RX, so connects to the GPS WHITE TX pin. ? On the DE9F (female pins), pin 3 is TX, so connects to the GPS GREEN RX pin. ? So the connection is made directly (no intermediate cable to swap 2 & 3.?
On Friday, April 28, 2023 at 09:56:25 PM EDT, Stephen Grob via groups.io <sgrob@...> wrote:
Thanks for the tip on non-MIC-E. I will disable that and SB.
My GPS BR355 does not have a connector on it. Only wires - Green, White, Red and Black. So I soldered the wires to a DE9F accordingly. Here is where I got the pin-outs:
|
In the schematic this website it shows White as TX and Green as RX - opposite from what Robs website says. I will disconnect the White wire and connect the Green wire and try again. I don¡¯t see an LED on the GPS puck but there may be one there hiding under the ¡°GPS¡± label characters. Also I will know the wiring is correct when I see the Green LED on the mt8k light up and stay on.
Thanks for all the great information.
73
Steve
KD9AER
On Apr 28, 2023, at 6:54 PM, Rob Giuliano via groups.io <kb8rco@...> wrote:
First, I agree with Allen - set a fixed TX rate (non-SmartBeaconing), non-Mic-E and decode it locally from another radio - if possible.
Main website I looked at:?
HOWEVER, since you need whatever interface cable to the MT8k, you should still find a way to verify the RS232 output from the GPS in a PC terminal?
?? A quick search on GPS BR355 shows a module with a 6-pin miniDIN. Is that how yours is configured?
?? If this is a 6-pin MiniDIN (according to the couple of websites) pins 1 (Gnd) & 2 (V+) are used to power the GPS puck.
????? I didn't find any reference to Data lines (in or out)
? ? ? The sites reference an optional (additional) PS-2 to RS232 adapter.? Are you using it, or did you make your own?
? ? ?? ??The BR-355S4(5Hz) uses a proprietary pin-out on the PS2, which cannot be connected directly to any laptop or PC without the use of a cable set (USB or RS232 + PS2 for power).
From your description of your setup, are you sure the GPS has a fix (BR355 says it has an LED indication of fix)?
According to this site:?
?? Green is TX from the GPS (output to attached device) and White is RX to the GPS (input from attached device).
<1682771192566blob.jpg><BR355-S4-400x400CAT_1024x1024.jpg>
Re: TT4, GPS5, home-brew splitter cable Q
UPDATE for folks:
Sure enough the cable was wired VERY wrong. Got that sorted out according to the pinout from Allen (Thanks again!) and set the settings in the TT4 to?ABAUD 19200 and AMODE KISS per Rob's recommendation and it worked great! Thanks again, folks! I appreciate it. I am VERY happy having a setup that can run APRS stand-alone, or that I can plug in my laptop and also use with APRSIS32 and PinPoint APRS. This is a very flexible, powerful solution and meets my needs beautifully.
73,
-Vaughn W0ULF
|
Re: TT4, GPS5, home-brew splitter cable Q
On Sun, Apr 30, 2023 at 08:25 AM, <vhsproducts@...> wrote:
/g/TinyTrak/topic/tt4_j2_splitter_gps_question/78760380?p=,,,20,0,0,0::recentpostdate/sticky,,,20,2,20,78760380,previd%3D1614438855761972447,nextid%3D1606527042393707400&previd=1614438855761972447&nextid=1606527042393707400
Alright, I got my "home brew" cables taken apart and I'm pretty sure I see the problem. This thing is NOT wired right and might have some broken connections. It looks like he built it with scraps of stranded AND solid core CAT5 cables and some of the solder connections have broken free of the pin on the 9 pin connectors, and some might be connected to the wrong places. Time to rebuild the cable and see if this sorts things out before I go any further into troubleshooting. Thanks again for the pinouts, Allen! -Vaughn, W0ULF
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Re: TT4, GPS5, home-brew splitter cable Q
"Have you gone through the CALIBRATE and MONITOR setup to get the TT4 configured for the radio you will be using?"
Yes. If I connect the TT4 to the PC, TeraTerm displays all the packets the TT4 decodes (And it decodes the vast majority of them - there are one or two in my area with really high or really low deviation that do not get decoded). Also, the TT4 display shows lots of packets and I have used the display and a keyboard to send and receive messages with friends in the area.?
?also shows a lot of good decodes on my transmitted packets, so I am pretty confident in my connection to my radio and to my GPS - it just starts to get problematic when I introduce the splitter cable and try to run the GPS and a PC at the same time.
I just got the radio and TT4 out of the truck - it's getting set up on the bench right now. I've got a Kenwood TH-D74 that I've been using to send and receive packets with the TT4/mobile radio when it is on the bench for testing.
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Re: TT4, GPS5, home-brew splitter cable Q
On Sun, Apr 30, 2023 at 12:06 PM, Vaughn Phillips wrote:
Do you have any suggestions on whether running the PC in TEXT or KISS is preferable for use with APRSIS32 or Pinpoint?
Almost all APRS clients prefer the TNC (TT4 in this case) to be in KISS mode. I run my TT4 with APRSIS32 all the time.? I set ABAUD 19200 and AMODE KISS (match in APRSIS32) Again, for troubleshooting, turn off the GKRELAY and GRELAYBITS.? You can play around with that later. Have you gone through the CALIBRATE and MONITOR setup to get the TT4 configured for the radio you will be using? ------- Rob KB8RCO
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Re: TT4, GPS5, home-brew splitter cable Q
I ran into a similar problem with my home brew cable. Make sure you have pins 7 and 8 jumpered (on the DE9 connectors going to the devices, not?on the TT4) as many of?the interfaces will not work without the hardware?handshake lines?asserted.? I found it would work as expected with one interface, but not another. RS-232 is the most nonstandard standard.?
Some interfaces are ok with just TX, RX and GND and some want to see?the handshaking.?
Sometimes you can disable the handshaking requirement in the software, and avoid the hardware assertion requirement for?clearance to send.?
There is no telling what the default conditions are from one interface to the next insofar as handshaking.?
Good luck, John N1CTF
Sent from Proton Mail for iOS
On Sun, Apr 30, 2023 at 10:45 AM, Vaughn Phillips < w0ulf@...> wrote: Howdy folks!
I have a TinyTrak4 with display and keyboard running 0.72, GPS5, and a home-brew splitter cable another ham gave me years ago. I'm trying (for the first time) to use the splitter cable and I'm having mixed results and I'm hoping someone can give me some tips.
*The TT4 and GPS5 work GREAT. Love 'em. A+! See my tracks from yesterday as W0ULF-12
*If I unplug the GPS5 and plug my PC into the TT4, I can see all the decoded APRS packets. That's exactly what I want: the ability to connect the laptop up and use an APRS program like APRSIS32 or Pinpoint and send and receive packets!
*When I insert the home-brew splitter cable between the TT4 and my PC, and plug the GPS5 into the third leg of the splitter cable, all I get on the PC is the stream of GPS packets from the GPS5. I stop seeing the serial data from the TT4.
I WANT to get the traffic from both the TT4 and the GPS5 on my PC AND have the ability to send/receive APRS data from the PC and GPS over the radio.
I'm assuming that either my cable isn't wired right (I haven't found a wiring diagram to check it against, nor have I found one for sale) or I have my ABAUD/AMODE BBAUD/BMODE settings wrong.
I would love the following, if possible:
*Suggested config settings for the TT4 to make this work
*Wiring diagram for the splitter cable so I can see if that was made correctly or not
*Anything else you think might be helpful or humourous. ?
Thanks again for your time, and have a great day!
-Vaughn Phillips
W0ULF
Lebanon, Oregon
|
Re: TT4, GPS5, home-brew splitter cable Q
Good morning, Rob! Thanks for the reply.
Sadly, I did not get a schematic with the cable. This was a "I'm not doing APRS any more and so I've stuffed everything that looks even remotely related to APRS and shoved it in a box. The first ham to send me an address will get it all", and I was thrilled to have what I got. The cable is nicely labeled with "PC", "GPS", and "TT4" and it seems to power the GPS fine - it just sends the GPS data to the PC port instead of the TT4 port.
Do you have any suggestions on whether running the PC in TEXT or KISS is preferable for use with APRSIS32 or Pinpoint? I (Not knowing any better) like the idea of TEXT just because it is human readable and thus easy to poke around in. I have no strong feelings for or against KISS except that I can't easily look at it in a terminal program and see what's going on. :D
I'll poke the GKRelay/GRELAYBITS settings here in a bit and let you know what I'm getting. The TT4 and GPS and radio are in the truck right now and I have to bring them in and set them back up on the bench.
-Vaughn, W0ULF
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Re: TT4, GPS5, home-brew splitter cable Q
Thank you very much for the excellent link and the callsign comment! :D I will admit to not being the world's best web searcher, so that diagram was eluding me. It's exactly what I was looking for! Now I can take this cable apart and see if it is wired right.
I was hoping to snap W0ULF, or something similar. This was the closest I was able to get, and it works well enough to make me smile. :D
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Re: TT4, GPS5, home-brew splitter cable Q
You need to figure out how the splitter was mode.?
Did the person you received the splitter from give you a schematic of how it is connected?
There are 3 legs to the splitter:
?? PC????? DE9F where Pins 2, 3, and 5 are used for communication
?? GPS?? DE9M where Pins 2, 3, and 5 are used for communication , and pin 4 should have 5V
?? TT4???
???? 2?????? Port A Rx???????????? Should go to Pin 3 of the PC (DE9F)
???? 3?????? Port A Tx????????????? Should go to Pin 2 of the PC (DE9F)
???? 4?????? 5V to GPS??????????? Should go to Pin 2 of the GPS (DE9M)
???? 5?????? Gnd????????????????????? MUST go to both connectors Pin 5
???? 7?????? Port B Tx????????????? No connection or Pin 3 of GPS DE9M
???? 8?????? Port B Rx????????????? Should go to Pin 2 of GPS DE9M
Then you set AMODE to your computer mode (Text, KISS, etc.) and BMODE to GPS.? Set the proper baud rates to match.
You may want to look at GKRelay (if AMODE is KISS) and/or GRELAYBITS (TEXT) to see if the TT4 is relaying the GPS data to the computer.
Set these to Zero until you have this figured out, then you can set as desired.
-------
Rob KB8RCO
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Re: TT4, GPS5, home-brew splitter cable Q
Vaughn,
Here is a link to an old post with the cable pinout you SHOULD have:?/g/TinyTrak/topic/tt4_j2_splitter_gps_question/78760380?p=,,,20,0,0,0::recentpostdate/sticky,,,20,2,20,78760380,previd%3D1614438855761972447,nextid%3D1606527042393707400&previd=1614438855761972447&nextid=1606527042393707400? ?I hope it works....
It is possible to set up the non-GPS port to echo the GPS in your configuration, but its more likely that your cable is wrong. Check the pinouts, the Byonics TT4 splitter cable is like no other.
Also, That is a most excellent callsign you have there sir!
73,
Allen AF6OF
-----Original Message-----
From: Vaughn Phillips <w0ulf@...>
To: [email protected]
Sent: Sun, Apr 30, 2023 7:45 am
Subject: [TinyTrak] TT4, GPS5, home-brew splitter cable Q
Howdy folks!
I have a TinyTrak4 with display and keyboard running 0.72, GPS5, and a home-brew splitter cable another ham gave me years ago. I'm trying (for the first time) to use the splitter cable and I'm having mixed results and I'm hoping someone can give me some tips.
*The TT4 and GPS5 work GREAT. Love 'em. A+! See my tracks from yesterday as W0ULF-12
*If I unplug the GPS5 and plug my PC into the TT4, I can see all the decoded APRS packets. That's exactly what I want: the ability to connect the laptop up and use an APRS program like APRSIS32 or Pinpoint and send and receive packets!
*When I insert the home-brew splitter cable between the TT4 and my PC, and plug the GPS5 into the third leg of the splitter cable, all I get on the PC is the stream of GPS packets from the GPS5. I stop seeing the serial data from the TT4.
I WANT to get the traffic from both the TT4 and the GPS5 on my PC AND have the ability to send/receive APRS data from the PC and GPS over the radio.
I'm assuming that either my cable isn't wired right (I haven't found a wiring diagram to check it against, nor have I found one for sale) or I have my ABAUD/AMODE BBAUD/BMODE settings wrong.
I would love the following, if possible:
*Suggested config settings for the TT4 to make this work
*Wiring diagram for the splitter cable so I can see if that was made correctly or not
*Anything else you think might be helpful or humourous. ?
Thanks again for your time, and have a great day!
-Vaughn Phillips
W0ULF
Lebanon, Oregon
|
TT4, GPS5, home-brew splitter cable Q
Howdy folks!
I have a TinyTrak4 with display and keyboard running 0.72, GPS5, and a home-brew splitter cable another ham gave me years ago. I'm trying (for the first time) to use the splitter cable and I'm having mixed results and I'm hoping someone can give me some tips.
*The TT4 and GPS5 work GREAT. Love 'em. A+! See my tracks from yesterday as W0ULF-12
*If I unplug the GPS5 and plug my PC into the TT4, I can see all the decoded APRS packets. That's exactly what I want: the ability to connect the laptop up and use an APRS program like APRSIS32 or Pinpoint and send and receive packets!
*When I insert the home-brew splitter cable between the TT4 and my PC, and plug the GPS5 into the third leg of the splitter cable, all I get on the PC is the stream of GPS packets from the GPS5. I stop seeing the serial data from the TT4.
I WANT to get the traffic from both the TT4 and the GPS5 on my PC AND have the ability to send/receive APRS data from the PC and GPS over the radio.
I'm assuming that either my cable isn't wired right (I haven't found a wiring diagram to check it against, nor have I found one for sale) or I have my ABAUD/AMODE BBAUD/BMODE settings wrong.
I would love the following, if possible:
*Suggested config settings for the TT4 to make this work
*Wiring diagram for the splitter cable so I can see if that was made correctly or not
*Anything else you think might be helpful or humourous. ?
Thanks again for your time, and have a great day!
-Vaughn Phillips
W0ULF
Lebanon, Oregon
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Re: New TinyTrak Group Member 8000FA Questions.
I used the diagram you speak of just to get the info on the GPS wire colors. You are right - it confused me too. So I re-soldered the GPS wires using the green wire (GPS TX) on pin 2 of the DE9F which connects to pin 2 (RX) on the mt8k DE9M. It worked! I saw the LED on the GPS puck light up and blink on and off, And the green LED on the mt8k lights up and blinks on and off too. I installed the mt8k in the test vehicle and drove my test course. I saw aprs status messages on the TMD710GA with the remark ¡°Moving¡± and distance and direction info also so the GPS is working. The TMD710GA screen showed that the mt8k was transmitting position reports about every 120 secs as configured and the distance was always about a mile away and direction was behind the vehicle. Unfortunately ?only showed one position report. I¡¯m assuming this is due to the low transmit power and lack of close by digipeaters in our area. The one position report shown on aprs.fi is at the point during my test course that is closest to the Digipeater. Next test I will circle the Digipeater and try to stay within 1 mile of it.
Thanks to Allen, Rob and Rich for all the help. You guys are the best.
73 Steve
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On Apr 29, 2023, at 7:31 AM, Rob Giuliano via groups.io <kb8rco@...> wrote:
When I look at the website diagram, I see the explanation to be confusing. What are they telling you about the pins on which connector??
The Green TX pin from the GPS will connect to the RX pin of the device. ? So is Green the TX pin or the TX wire with respect to the GPS? ? On the DE9F (female pins), pin 2 is RX, so connects to the GPS WHITE TX pin. ? On the DE9F (female pins), pin 3 is TX, so connects to the GPS GREEN RX pin. ? So the connection is made directly (no intermediate cable to swap 2 & 3.
On Friday, April 28, 2023 at 09:56:25 PM EDT, Stephen Grob via groups.io <sgrob@...> wrote:
Thanks for the tip on non-MIC-E. I will disable that and SB.
My GPS BR355 does not have a connector on it. Only wires - Green, White, Red and Black. So I soldered the wires to a DE9F accordingly. Here is where I got the pin-outs:
|
In the schematic this website it shows White as TX and Green as RX - opposite from what Robs website says. I will disconnect the White wire and connect the Green wire and try again. I don¡¯t see an LED on the GPS puck but there may be one there hiding under the ¡°GPS¡± label characters. Also I will know the wiring is correct when I see the Green LED on the mt8k light up and stay on.
Thanks for all the great information.
73
Steve
KD9AER
On Apr 28, 2023, at 6:54 PM, Rob Giuliano via groups.io <kb8rco@...> wrote:
First, I agree with Allen - set a fixed TX rate (non-SmartBeaconing), non-Mic-E and decode it locally from another radio - if possible.
Main website I looked at:
HOWEVER, since you need whatever interface cable to the MT8k, you should still find a way to verify the RS232 output from the GPS in a PC terminal?
?? A quick search on GPS BR355 shows a module with a 6-pin miniDIN. Is that how yours is configured?
?? If this is a 6-pin MiniDIN (according to the couple of websites) pins 1 (Gnd) & 2 (V+) are used to power the GPS puck.
????? I didn't find any reference to Data lines (in or out)
? ? ? The sites reference an optional (additional) PS-2 to RS232 adapter.? Are you using it, or did you make your own?
? ? ?? ? The BR-355S4(5Hz) uses a proprietary pin-out on the PS2, which cannot be connected directly to any laptop or PC without the use of a cable set (USB or RS232 + PS2 for power).
From your description of your setup, are you sure the GPS has a fix (BR355 says it has an LED indication of fix)?
According to this site:
?? Green is TX from the GPS (output to attached device) and White is RX to the GPS (input from attached device).
<1682771192566blob.jpg><BR355-S4-400x400CAT_1024x1024.jpg>
Re: New TinyTrak Group Member 8000FA Questions.
When I look at the website diagram, I see the explanation to be confusing. What are they telling you about the pins on which connector??
The Green TX pin from the GPS will connect to the RX pin of the device. ? So is Green the TX pin or the TX wire with respect to the GPS? ? On the DE9F (female pins), pin 2 is RX, so connects to the GPS WHITE TX pin. ? On the DE9F (female pins), pin 3 is TX, so connects to the GPS GREEN RX pin. ? So the connection is made directly (no intermediate cable to swap 2 & 3.
On Friday, April 28, 2023 at 09:56:25 PM EDT, Stephen Grob via groups.io <sgrob@...> wrote:
Thanks for the tip on non-MIC-E. I will disable that and SB.
My GPS BR355 does not have a connector on it. Only wires - Green, White, Red and Black. So I soldered the wires to a DE9F accordingly. Here is where I got the pin-outs:
|
In the schematic this website it shows White as TX and Green as RX - opposite from what Robs website says. I will disconnect the White wire and connect the Green wire and try again. I don¡¯t see an LED on the GPS puck but there may be one there hiding under the ¡°GPS¡± label characters. Also I will know the wiring is correct when I see the Green LED on the mt8k light up and stay on.
Thanks for all the great information.
73
Steve
KD9AER
toggle quoted message
Show quoted text
On Apr 28, 2023, at 6:54 PM, Rob Giuliano via groups.io <kb8rco@...> wrote:
First, I agree with Allen - set a fixed TX rate (non-SmartBeaconing), non-Mic-E and decode it locally from another radio - if possible.
Main website I looked at:
HOWEVER, since you need whatever interface cable to the MT8k, you should still find a way to verify the RS232 output from the GPS in a PC terminal?
?? A quick search on GPS BR355 shows a module with a 6-pin miniDIN. Is that how yours is configured?
?? If this is a 6-pin MiniDIN (according to the couple of websites) pins 1 (Gnd) & 2 (V+) are used to power the GPS puck.
????? I didn't find any reference to Data lines (in or out)
? ? ? The sites reference an optional (additional) PS-2 to RS232 adapter.? Are you using it, or did you make your own?
? ? ?? ? The BR-355S4(5Hz) uses a proprietary pin-out on the PS2, which cannot be connected directly to any laptop or PC without the use of a cable set (USB or RS232 + PS2 for power).
From your description of your setup, are you sure the GPS has a fix (BR355 says it has an LED indication of fix)?
According to this site:
?? Green is TX from the GPS (output to attached device) and White is RX to the GPS (input from attached device).
Re: New TinyTrak Group Member 8000FA Questions.
I've been using one of these on a tinytrak FA since 2015 or so. yes it has a small led along the edge. sirfstar 3 is very good.
it is on the rear deck of my car with the mag antenna on the trunk lid. all works great. rich
Thanks for the tip on non-MIC-E. I will disable that and SB.
My GPS BR355 does not have a connector on it. Only wires - Green, White, Red and Black. So I soldered the wires to a DE9F accordingly. Here is where I got the pin-outs:
|
In the schematic this website it shows White as TX and Green as RX - opposite from what Robs website says. I will disconnect the White wire and connect the Green wire and try again. I don¡¯t see an LED on the GPS puck but there may be one there hiding under the ¡°GPS¡± label characters. Also I will know the wiring is correct when I see the Green LED on the mt8k light up and stay on.
Thanks for all the great information.
73
Steve
KD9AER
First, I agree with Allen - set a fixed TX rate (non-SmartBeaconing), non-Mic-E and decode it locally from another radio - if possible.
Main website I looked at:
HOWEVER, since you need whatever interface cable to the MT8k, you should still find a way to verify the RS232 output from the GPS in a PC terminal?
?? A quick search on GPS BR355 shows a module with a 6-pin miniDIN. Is that how yours is configured?
?? If this is a 6-pin MiniDIN (according to the couple of websites) pins 1 (Gnd) & 2 (V+) are used to power the GPS puck.
????? I didn't find any reference to Data lines (in or out)
? ? ? The sites reference an optional (additional) PS-2 to RS232 adapter.? Are you using it, or did you make your own?
? ? ?? ? The BR-355S4(5Hz) uses a proprietary pin-out on the PS2, which cannot be connected directly to any laptop or PC without the use of a cable set (USB or RS232 + PS2 for power).
From your description of your setup, are you sure the GPS has a fix (BR355 says it has an LED indication of fix)?
According to this site:
?? Green is TX from the GPS (output to attached device) and White is RX to the GPS (input from attached device).
-- Richard A. Painter, P.E. Retired
Rich Painter