iangrant
New member
They certainly cannot run "pure" dos
Ian
Ian
Techie question
- Thread starter NDG
- Start date
bedouin
Well-known member
Don't forget the other key side of the issue, even if you could run "Real" DOS (which you can't on NT/Win2000/XP based machines) you would still not be able to work over USB, and you don't have a serial port on board.
The sound card route sounds like the only feasible option
The sound card route sounds like the only feasible option
pandroid
Active member
I want to remove the modem too.
Can you hit me with that one again. Is the resistor in series with the capacitor or what? (how about a weeny diagram?) I thought there was an issue with the radio being positive earth? (and the boat being negative...)
Can you hit me with that one again. Is the resistor in series with the capacitor or what? (how about a weeny diagram?) I thought there was an issue with the radio being positive earth? (and the boat being negative...)
iangrant
New member
The original signal from the radio the it's internal "modem" is what you need for the sound card!! The output from the modem is designed to connect to the serial card..
Take out the modem card - it is fed by a wire from the + Data on the main card and a chassis ground. (-)
Take the wire from the +data and solder on a 10K resistor then a 0.1 microfarad capacitor - to form a "decoupler" . (this stops DC flowing and blowing up the PC sound card).
Connect a wire from the capacitor to the sound card plug tip and the screen to the chassis of the radio and the first ring of the plug.
Job done - Northwood weatherfaxes Navtex Offenbach RTTY, reeling out like no tomorrow!
PM me about the software "fix"
Ian
Take out the modem card - it is fed by a wire from the + Data on the main card and a chassis ground. (-)
Take the wire from the +data and solder on a 10K resistor then a 0.1 microfarad capacitor - to form a "decoupler" . (this stops DC flowing and blowing up the PC sound card).
Connect a wire from the capacitor to the sound card plug tip and the screen to the chassis of the radio and the first ring of the plug.
Job done - Northwood weatherfaxes Navtex Offenbach RTTY, reeling out like no tomorrow!
PM me about the software "fix"
Ian
stubate
New member
well boot it from a dos disk
why not boot from a dos disk then?
stu
why not boot from a dos disk then?
stu
iangrant
New member
Re: well boot it from a dos disk
Worked from XP prof on PC but not on XP home edition on the laptop - No C prompt available !!!
To run dos it would need partition majic which retails at ove 50 quid - USE the soundcard option!!!
Ian
Worked from XP prof on PC but not on XP home edition on the laptop - No C prompt available !!!
To run dos it would need partition majic which retails at ove 50 quid - USE the soundcard option!!!
Ian
stubate
New member
Re: well boot it from a dos disk
of course, i wander around my clients with a case full of boot disks and forget that mr public doesnt have access to PM etc as we do.
stu
of course, i wander around my clients with a case full of boot disks and forget that mr public doesnt have access to PM etc as we do.
stu
bedouin
Well-known member
Re: well boot it from a dos disk
You will probably find that if you boot from a DOS disk you will not be able to access the hard disk. Most machines now use FAT32 or NTFS on the primary partion, which cannot (easily) be accessed from DOS.
No - DOS is now (almost) dead except for very speciallised applications. I still use it on a PDA though
You will probably find that if you boot from a DOS disk you will not be able to access the hard disk. Most machines now use FAT32 or NTFS on the primary partion, which cannot (easily) be accessed from DOS.
No - DOS is now (almost) dead except for very speciallised applications. I still use it on a PDA though
chriscallender
Active member
You can also go for the low tech approach and tape a PC microphone onto the radio.
I did this with a NASA HF3/P before I had bought the necessary audio cable and the PC software receives eatherfax/navtex etc fine that way... although the tones get a bit annoying and you can't turn the volume down...
Chris
I did this with a NASA HF3/P before I had bought the necessary audio cable and the PC software receives eatherfax/navtex etc fine that way... although the tones get a bit annoying and you can't turn the volume down...
Chris
NDG
Member
Thats more like it!!
I can understand that level of technology.
What software do you use?
I can understand that level of technology.
What software do you use?
chriscallender
Active member
Re: Thats more like it!!
I use SeaTTY for receiving Navtex or RTTY and wxsat for receiving weatherfaxes. SeaTTY has a 30 day trial then its $20 or something to register, wxsat is free for non commercial use. Both should be easy to find by doing a Google search or whatever.
Navtex and RTTY worked straight off. Weatherfaxes needed a bit of tuning of some parameter (sample rate) to work on my home PC but worked with the standard settings with my notebook.
Regards
Chris
I use SeaTTY for receiving Navtex or RTTY and wxsat for receiving weatherfaxes. SeaTTY has a 30 day trial then its $20 or something to register, wxsat is free for non commercial use. Both should be easy to find by doing a Google search or whatever.
Navtex and RTTY worked straight off. Weatherfaxes needed a bit of tuning of some parameter (sample rate) to work on my home PC but worked with the standard settings with my notebook.
Regards
Chris
vyv_cox
Well-known member
Isn't it only the NASA set that requires the laptop to be in DOS? I use Mscan meteo and had intended to use my old laptop with Windows 95 for this purpose, but the W95 would not support the software. It runs in ME on my newer laptop perfectly well with the signal received by an Icom PCR 1000.
pandroid
Active member
Thanks for the info on the HF3/M. I tried mine this weekend and it worked! Magic!
(Actually, the components are already on the little modem board. All you need to do is break a couple of PCB tracks and add a little patch lead, to cut out the op-amp, you can then use the original socket into a sound card)
P.S. How do you mount this radio into a boat? I suppose I've got to make up some form of bracket, as the radio doesnt come with one, nor are there any mounting holes
(Actually, the components are already on the little modem board. All you need to do is break a couple of PCB tracks and add a little patch lead, to cut out the op-amp, you can then use the original socket into a sound card)
P.S. How do you mount this radio into a boat? I suppose I've got to make up some form of bracket, as the radio doesnt come with one, nor are there any mounting holes
iangrant
New member
I took the lids, top and bottom off, made up some brackets, cut a hole in the woodwork by the chart table and surface flush mounted it.
Things that interfere - Fridge, battery charger , mobile 'phone on charge (that's the worst one) and on the lower freqs the depth sounder..
Ian
Things that interfere - Fridge, battery charger , mobile 'phone on charge (that's the worst one) and on the lower freqs the depth sounder..
Ian