# Transmit Options and RSSI

**URL:** <https://forums.digi.com/t/transmit-options-and-rssi/22613>\
**Category:** XBee - DigiMesh\
**Tags:** rssi, transmit-options, digimesh\
**Created:** [August 18, 2021, 9:09am UTC](https://forums.digi.com/t/transmit-options-and-rssi/22613 "2021-08-18T09:09:25Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![Zaemo](https://avatars.discourse-cdn.com/v4/letter/z/b9bd4f/32.png) [@Zaemo](https://forums.digi.com/u/Zaemo)\
**Post date:** [August 18, 2021, 9:09am UTC](https://forums.digi.com/t/transmit-options-and-rssi/22613/1 "2021-08-18T09:09:25Z")

</div>

Using DigiMesh on XB3’s with current firmware. I am trying to increase throughput using transparent mode. I am streaming MIDI and need to reduce latency. I was advised here to unicast and to set RR & MR to 0 (this drops information and results in stuck notes if a NOTE OFF message is dropped). Unicast helps and reducing retries helps.

I was also advised to set TO to 0x40 (Point to Point/Multipoint). This gives me the throughput I need however the RSSI function no longer works. I rely on the RSSI to visually confirm the units are communicating successfully.

I don’t understand the difference between Point to Point/Multipoint (0x40) and DigiMesh (0xC0).

Thanks very much.

---

<div class="post-metadata">

**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\
**Post date:** [August 18, 2021, 9:14am UTC](https://forums.digi.com/t/transmit-options-and-rssi/22613/2 "2021-08-18T09:14:12Z")

</div>

RSSI should still work in a unicast point to point connection.

Digi mesh is a mesh network where you need one or more routers to extend the range of the network.

IE I want to send data from A to D but since A and D are out of range, I need to hop the data thru B and C.

---

<div class="post-metadata">

**Author:** ![Zaemo](https://avatars.discourse-cdn.com/v4/letter/z/b9bd4f/32.png) [@Zaemo](https://forums.digi.com/u/Zaemo)\
**Post date:** [August 20, 2021, 9:37am UTC](https://forums.digi.com/t/transmit-options-and-rssi/22613/3 "2021-08-20T09:37:41Z")

</div>

Ok, it’s slightly confusing since it is called multipoint. I understand that all mesh capability is negated.  
It’s curious then that when I change only TO from mesh to multipoint on the transmit side, the LED I have on the RSSI pin ceases to indicate.  
Thanks again for replying.

---

<div class="post-metadata">

**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\
**Post date:** [August 20, 2021, 9:52am UTC](https://forums.digi.com/t/transmit-options-and-rssi/22613/4 "2021-08-20T09:52:27Z")

</div>

The only thing I can think of is if you are sending a broadcast packet. But even then I would expect to see the RSSI.