Re: [digitalradio] Recommendations on FAX

Great information. However, the ham that contacted me has asked me to not give him any more information as he only wants to do it his way or nothing apparently. You would think that you would have a ham who would be greatly interested in digital comx, especially for HF since the distances he wa

Re: [digitalradio] Recommendations on FAX

>The individual wanting to do this, is primarily interested in running two >bands (e.g., 2 meters/440) with full duplex. Well if it was absolutely necessary to use telephone fax machines, then at the originating end you would need a device that supplies -48 volts to the fax machine telephone i

Re: [digitalradio] Recommendations on FAX

I don't know if the info you seek is here but Try this website for info: http://www.hffax.de/ Brad N1NPK [Non-text portions of this message have been removed] Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups

Re: [digitalradio] Recommendations on FAX

Yes, I was aware of the HAL modem, but each one is around $1500 so unlikely to be purchased. It would mostly be used for HF. It uses Clover II and Clover 2000 which has a pseudo full duplex characteristic and I can see how this would be useful for a handshaking requirement. The individual wanti

Re: [digitalradio] Recommendations on FAX

>Are you able to put your hands on the info by chance? HAL has a system that allows fax over radio: http://www.halcomm.com/docs/fax4100.pdf 73, Mark N5RFX Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo

RE: [digitalradio] Recommendations on FAX

>Apparently the basic fax mode is only half duplex. The circuit I saw was a >basic >hybrid to separate the two wire telephone line into send/receive and to >sense when the local fax was sending to trigger the radio (VOX) There is a good discussion of facsimile theory at http://electronics.hows

Re: [digitalradio] Recommendations on FAX

Are you able to put your hands on the info by chance? Howard W6IDS Richmond, IN - Original Message - From: "RussellHltn" <[EMAIL PROTECTED]> To: Sent: Sunday, July 30, 2006 3:42 AM Subject: RE: [digitalradio] Recommendations on FAX >I have heard and even seen a di

Re: [digitalradio] Recommendations on FAX

At 09:55 PM 7/28/2006, KV9U wrote: >A low cost scanner >could be used to scan the image and then convert to bmp file format. > >Any suggestions on whether this is feasible? Scanning the image sounds like a good idea. The image could be converted from .bmp to .jp2 and sent using HamPal or DigTRX

RE: [digitalradio] Recommendations on FAX

28, 2006 4:55 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Recommendations on FAX A ham about 40 miles away wants to try to make conventional FAX machines work on amateur radio VHF/UHF frequencies. Has anyone tried this and had results that would make it practical? The purpose he

Re: [digitalradio] Recommendations on FAX

Hi Rick and the group just a pennies worth 1) you might consider using fractal image compression schemes (currently used in spy satelites to save time, power, and bandwidth. hunt up a copy of "*Fractals Everywhere*

[digitalradio] Recommendations on FAX

A ham about 40 miles away wants to try to make conventional FAX machines work on amateur radio VHF/UHF frequencies. Has anyone tried this and had results that would make it practical? The purpose he envisions, is to be able to send any kind of handwritten notes, such as from medical staff requi