# Baseband IQ signals of LimeSDR
**URL:** https://discourse.myriadrf.org/t/baseband-iq-signals-of-limesdr/7360
**Category:** LimeSDR
**Created:** [8 October 2021 15:05 UTC](https://discourse.myriadrf.org/t/baseband-iq-signals-of-limesdr/7360 "2021-10-08T15:05:35Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@niktsts21](https://discourse.myriadrf.org/u/niktsts21)
#### Post date: [8 October 2021 15:05 UTC](https://discourse.myriadrf.org/t/baseband-iq-signals-of-limesdr/7360/1 "2021-10-08T15:05:35Z")
Hello,
I want to use the LimeSDR as my modem to which I will connect my own RF module. This RF module has IQ signals as IOs and also performs direct up/downconversion.
According to the datasheet of the transceiver LMS7002M there are pins for the baseband IQ signals just after the DACs/ADCs ( e.g TXINI/TXINQ).
Is it possible to connect my module to these pins?
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### Author:  [@mzs](https://discourse.myriadrf.org/u/mzs)
#### Post date: [8 October 2021 19:29 UTC](https://discourse.myriadrf.org/t/baseband-iq-signals-of-limesdr/7360/2 "2021-10-08T19:29:08Z")
> [@niktsts21](#):
>
> Is it possible to connect my module to these pins?
Short answer: No
Longer answer: If you look on github at page 4 of the schematic for the [LimeSDR-USB](https://github.com/myriadrf/LimeSDR-USB/blob/master/hardware/socket/1v4/Project%20Outputs%20for%20LimeSDR-USB_1v4s_LMS031pad/LimeSDR-USB_1v4s_schematic_r7.PDF) and [LimeSDR-Mini](https://github.com/myriadrf/LimeSDR-Mini/blob/master/hardware/1v3/Project%20Outputs%20for%20LimeSDR_Mini_1v3/LimeSDR_Mini_1v3_schematic_r0.PDF), or page 5 schematic for the [LimeSDR-Micro](https://github.com/myriadrf/LimeNET-Micro/blob/master/hardware/2v1/Project%20Outputs%20for%20LimeNet-Micro_2v1-SDR/LimeNET-Micro_2v1-SDR_Schematic_r2.PDF) under “Baseband external IO” none of those pins are accessible. This makes sense since pulling them out, unused, to an external interface would just be a source of additional noise injected into the baseband. So even though the pins exist on the LMS7002M chip they are not accessible on any of the current LimeSDR boards that I know about.
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### Author:  [@niktsts21](https://discourse.myriadrf.org/u/niktsts21)
#### Post date: [11 October 2021 07:21 UTC](https://discourse.myriadrf.org/t/baseband-iq-signals-of-limesdr/7360/3 "2021-10-11T07:21:20Z")
Hello mzs,
Thank you for your reply. Do you know if it is possible to order a custom board that can deliver access to the baseband IQ signals?