Re: [Discuss-gnuradio] coverage of common ham bands

[Marcus Müller]

Trying not to sound to much like marketing, but:

Any of the modular USRPs (USRP2, N2x0, X3x0) that take daughterboards
could be equipped with a WBX daughterboard (LO frequency 50-2200MHz,
with 40MHz analog bandwidth, so with the USRP's digital tuning
>30-<2220MHz), or the UBX daughterboard (10MHz-6000MHz, so with digital
tuning DC upwards). Or, you could just use a LFRX (which is but a unity
gain dual Opamp with a ~30MHz LPF) and LFTX (the same, TX direction), or
BasicRX/TX (just signal transformers, which means to fulfill sampling
requirements you'll need your own filters) for the low frequencies, and
another daughterboard for the higher ones. Notice that these
daughterboards are completely gainless. Also note that LF* and Basic*
don't contain tuners at all -- 3.5MHz simply fits into the "baseband"
bandwidth of any USRP.

Best regards,
Marcus



On 01.01.2016 12:07, Daniel Pocock wrote:
>
> One specific issue I notice when comparing hardware is that some devices
> cover HF bands (under 30MHz) while others don't, e.g. USRP B2x0 starts
> at 70MHz. There are some discussions about using upconverters (with
> insertion loss, and receiver only) or just buying multiple SDRs.
>
> Are there any single SDR devices for RX and TX across all the most
> common ham bands from 3.5MHz (80m) to 450MHz (70cm) that people
> recommend or already use with GNU Radio?
>
> If a single solution is not optimal, can anybody comment on which
> combination of two SDR devices may be a good choice to cover those bands
> with both RX and TX?
>
>
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