Rattlegram

SMS via audio!

Published by: aicodix
Downloads
Revenue

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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Rattlegram FAQ

  • Is Rattlegram free?

    Yes, Rattlegram is completely free and it doesn't have any in-app purchases or subscriptions.

  • Is Rattlegram legit?

    Not enough reviews to make a reliable assessment. The app needs more user feedback.

    Thanks for the vote

  • How much does Rattlegram cost?

    Rattlegram is free.

  • What is Rattlegram revenue?

    To get estimated revenue of Rattlegram app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.

User Rating
App is not rated in Switzerland yet.
Ratings History

Rattlegram Reviews

Great program

Analog MJ on

United States

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

Great idea

Agg20000000000 on

United States

I downloaded for my iPhone. At the bottom it says unable to create decoder. How can I fix?

Downloaded app, functions missing.

123djm123 on

United States

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

ytcandobetter on

United States

Very cool app not too sure how too delete messages but amazing

I would give it 5 stars but…

St. George Paddler on

United States

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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