<html><head></head><body><div class="ydp91201864yahoo-style-wrap" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 13px;"><div></div>
<div dir="ltr" data-setdir="false">Greetings Vladislav</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Unfortunately these block functions are not represented in terms of GRC blocks. You're correct that dv_tx.py is at present the only implementation (aside from its big brother, multi_tx.py)<br></div><div><br></div><div dir="ltr" data-setdir="false">Also AFAIK the rtl-sdr is a receive only device - it's not usable for transmitting. Don't know about the limesdr...</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Max<br></div>
</div><div id="yahoo_quoted_0351217957" class="yahoo_quoted">
<div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
<div>
On Monday, January 20, 2020, 11:46:01 AM EST, Владислав Д. <quasar1902@gmail.com> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id="yiv3612302526"><div dir="ltr">Good evening,<br>Would You kindly to answer a few questions about the OP25 project and how to organize a transmitter with it using SDR devices (RTL-SDR, LimeSDR)?<div>In the creation process of DMR-standard transmitter in the GnuRadio environment, we came across the absence of some necessary blocks: 4FSK modulator, DMR encoder, packet shaper.</div><div>Inside the OP25 project we found a file that contains some functionality of DMR TX (dv_tx.py), but only in form of code, not as a GRC block.<br>Could you tell us does this file fully implements the TX-side of the DMR system and whether there is an analogue of it, in the form of a GRC block for GnuRadio?</div><div><br>We will be very grateful if you can help us sort this out.<br><br>Yours faithfully,<br>Vladislav.</div><div><br></div></div></div></div>
</div>
</div></body></html>