UmTRX performance questions

Alexander Chemeris alexander.chemeris at
Tue Mar 5 14:07:46 UTC 2013

On Fri, Feb 22, 2013 at 6:28 PM, joel yabut <joel at> wrote:
> May i know the following specs
> 1. What is the tx and rx isolation of umtrx?
> 2. What is the power output in dbm of your umtrx?

Andrey Sviyazov will comment on this.

> 3. How is the lna on the rx input and is an external lna and bpf
> recommended?

For Fairwaves 10W base stations we're developing UmSEL, which has
channel filter and an additional LNA. For the use without amplifier
you don't need any additional filters or LNAs.

> 4. What is the main advantage of umtrx compared to usrp by ettus?

If you want to use it for GSM, then it's cheaper and gives you
dual-channel support.

Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио

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