I want to collect data from auto (taxi) to a control office.
Most of existing Taxi have a VHF radio tranceiver. So Howcan we use this to transfer data to the controlling site.
Regards, Thuan Nguyen
- posted
17 years ago
Use VHF radio to transfer data
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- posted
17 years ago
GPRS, GSM or SMS. Or you could mail it. ;-)
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- posted
17 years ago
Read the taxi firm's radio license first. They are probably only licensed for voice transmissions.
Bob
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- posted
17 years ago
On a sunny day (8 Mar 2007 02:45:26 -0800) it happened snipped-for-privacy@yahoo.com wrote in :
Say 'one' 'zero' 'one' 'one'.....
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- posted
17 years ago
What country are you in? (License issues) What kind, and how much data are you talking about?
There are many manufacturers of add-on encoders for two-way mobile radios. Including simple automatic-ID units (to know who's keyed up). Also, there are many DTMF microphone solutions.
Let me know your requirements, and I can steer you in the right direction. It would also be helpful to know the radio make & model(s), including whether or not any portables are involved.
-mpm
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- posted
17 years ago
IF your license allows it, you can use various schemes that use audio frequency shift keying, there are chipsets designed for this. google FX/MX469 chip. Note most radio regulatory agencies get very antsy and very interested if you send a data protocol they dont like or cant decode, and the possible penalities for disobeying are HARSH, no matter where in the world you are.
Steve Roberts
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- posted
17 years ago
Are they still using stolen PRC-77 radios in Vietnamese taxis?
-- Service to my country? Been there, Done that, and I\'ve got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida