# Receiving and transmitting at 1MHz

**URL:** <https://discourse.myriadrf.org/t/receiving-and-transmitting-at-1mhz/5328>\
**Category:** LimeSDR\
**Created:** [7 November 2019 12:15 UTC](https://discourse.myriadrf.org/t/receiving-and-transmitting-at-1mhz/5328 "2019-11-07T12:15:25Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![martywittrock](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/martywittrock/32/66_2.png) [@martywittrock](https://discourse.myriadrf.org/u/martywittrock)\
**Post date:** [7 November 2019 15:18 UTC](https://discourse.myriadrf.org/t/receiving-and-transmitting-at-1mhz/5328/2 "2019-11-07T15:18:21Z")

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@amrbekhit,

It is possible to transmit AM with the LimeSDR-USB in the 1 MHz region - evidence of that is shown in my post on that (awhile ago) here:

> [@More About The Power Level of the LimeSDR 160m to 1.28 GHz](https://discourse.myriadrf.org/t/more-about-the-power-level-of-the-limesdr-160m-to-1-28-ghz/4241):
>
> LIMESDR TRANSMIT UPDATE: …Okay. again, with the LimeSDR USB version, using SDRAngel in Upper Sideband mode at 90% mic level at 1.0 kHz modulating frequency, here are the peak power values for the LimeSDR covering 160m to 1.28GHz, all frequencies shown are the MIDBAND FREQUENCIES and taken DIRECTLY - NO MODIFICATIONS - off the LOWBAND (L) TRANSMIT PORT of the LimeSDR…Also, there could be some coax losses (I used an RG-58A/U BNC cable that was 1m long at the higher frequencies - I am providing the…

At 160m (1.825 MHz) the output of the LimeSDR-USB is -8.77 dBm. Admittedly this isn’t a lot of power, but if you design or buy and then apply the right post-amplification in place you’ll be able to put the signal out at any level you want. Now this measurement was made in the 160m Ham Band, but it is very possible to re-tune the LimeSDR-USB to 1.0 MHz (or wherever you want to tune to) and transmit there with similar power output from the LimeSDR-USB and whatever post-amplification you provide at your frequency of interest.

Hope this helps - 73 de Marty, KN0CK

So the answer is: Yes, but the effort to get it to the power output level

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