Great program
This work great. I am a HAM operator and can it also talk to FLDIGI or FLMSG? It is in PSK which is a great mode. Can’t wait to what else it can do. Thanks
Description
COFDMTV is based on COFDM (coded orthogonal frequency-division multiplexing) technology:
- 160 ms long OFDM symbols
- 6.25 Hz per sub-carrier
- 1/8 guard interval
- differentially encoded PSK (phase-shift keying) modulation
- systematic polar codes for forward error correction
Currently Modes 14, 15 and 16 are supported:
Using either SPC(2048, 1392), SPC(2048, 1056) or SPC(2048, 712) with CRC32C aided SCL decoding and differential QPSK modulation for the payload.
Only a bandwidth of 1600 Hz is needed and the transmission of either 85, 128 or 170 bytes take about one second with the leading noise and fancy header disabled.
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- 160 ms long OFDM symbols
- 6.25 Hz per sub-carrier
- 1/8 guard interval
- differentially encoded PSK (phase-shift keying) modulation
- systematic polar codes for forward error correction
Currently Modes 14, 15 and 16 are supported:
Using either SPC(2048, 1392), SPC(2048, 1056) or SPC(2048, 712) with CRC32C aided SCL decoding and differential QPSK modulation for the payload.
Only a bandwidth of 1600 Hz is needed and the transmission of either 85, 128 or 170 bytes take about one second with the leading noise and fancy header disabled.
Screenshots
Rattlegram FAQ
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Is Rattlegram free?
Yes, Rattlegram is completely free and it doesn't have any in-app purchases or subscriptions.
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Rattlegram is free.
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User Rating
App is not rated in Argentina yet.
Ratings History
Rattlegram Reviews
Great idea
I downloaded for my iPhone. At the bottom it says unable to create decoder. How can I fix?
Downloaded app, functions missing.
Please advise. It appears as the IOS version has text creation and call sign disabled, however mike is still enabled on install. Please advise and I will test again and re-rate. Thanks
Amazing
Very cool app not too sure how too delete messages but amazing
I would give it 5 stars but…
Really nice application that allows the transmission of text via two way radio. Only reason I don’t give it 5 stars is that you don’t or I haven’t figured out yet, how to delete previous messages. I would like to start a new session without seeing the history of past transmissions.
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App Info
- Category
- Social Networking
- Publisher
-
aicodix
- Languages
- English
- Recent release
- 1.8 (7 months ago )
- Released on
- Nov 20, 2023 (1 year ago )
- Also available in
- United States, Germany, Canada, Netherlands, Portugal, Kuwait, Kazakhstan, Mexico, Malaysia, Nigeria, New Zealand, Peru, Philippines, Pakistan, Poland, Italy, Russia, Saudi Arabia, Sweden, Singapore, Taiwan, Vietnam, South Africa, Ecuador, Azerbaijan, Belgium, Switzerland, Chile, China, Colombia, Denmark, Dominican Republic, Algeria, Japan, Egypt, Finland, France, United Kingdom, Greece, Hungary, Ireland, India, Argentina
- Last Updated
- 1 week ago