On Wed, 2 May 2018, Jeroen Vreeken wrote:
A small update: the dra818 module is a bit dissapointing. The worst problem: it takes almost a second before it modulates after switching to TX. So I went for a different approach:
You might reconsider as I've been playing with one module that works much better. A buddy reported several years back that he had found a German ham forum discussing the 1W Chinese modules: The Dorji DRA-818, the NiceRF SA-818, and later the Sunrise Electronics SR_FRS_1WV. I noted it at the time but didn't read the forum myself until a few years later, after I had bought some of the NiceRF modules. The forum is here: http://www.qrpforum.de/index.php?page=Thread&threadID=9797 I don't read German so used Google Translate to glean what I could out of it. Based on what I learned I bought some Sunrise Electronics modules in 1W and 4W versions. My purpose is packet at the moment rather than Codec2, but you might investigate to see if that module suits your purpose better than the DRA-818. They also have 0.5W VHF modules and UHF modules from 0.5W to 2W. As an aside, if anyone wants some NiceRF 1W modules to play with I'd part with the qty 5 each VHF and UHF modules I have. -- Curt, WE7U. http://we7u.wetnet.net APRS in Search and Rescue: http://we7u.wetnet.net/search_and_rescue.html Coordinate Converter (Android): http://www.sarguydigital.com ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
