All of them use reasonably good crystals or crystal XOs. Certainly a lot better than the RTLSDRs most of these were intended for.
I assume that you're talking about frequency stability, rather than gain stability? On 2016-03-30 03:18, Daniel Pocock wrote: > Hi all, > > Has anybody been using any of the upconverters for SDR and has anybody > made any comparison of them? > > I've seen some comments suggesting that many of the low cost models have > poor thermal stability[1], has anybody seen problems with this in > practice for receiving modes like SSB on amateur HF bands? > > If this is an issue, is anybody aware of alternative models that are > more robust? > > Regards, > > Daniel > > 1. http://www.rtl-sdr.com/review-of-the-spyverter-upconverter/#comment-79953 > [1] > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio [2] Links: ------ [1] http://www.rtl-sdr.com/review-of-the-spyverter-upconverter/#comment-79953 [2] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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