INNOVATE. EXPERIMENT. EDUCATE. Tulsa, OK / Broken Arrow, OK news and experiments in digital radio.
Sunday, December 14, 2014
Latest results from FLDIGI testing/net
We conducted another "dual band" net last Thursday (December 11th). There was one HF station on 7036 (AE5QL). He and Scott were able to achieve good communications on 5 watts on PSK250. However, once he dropped to one watt, AE5QL couldn't be copied at either Scott's or my location. Further followup this weekend seems to confirm that about 3 watts is required for a reliable connection between AE5QL "in the Mingo valley" and other stations in Broken Arrow 5-6 miles away.
The other side of the net was on 145.03 Mhz FM. KB6LZJ was able to connect with me and received all the bulletins I sent out. He does have a weird situation in which FLAMP doesn't always connect up to FLDIGI and may miss bulletins as a result. We'll be following up on that to figure it out. One other station on a Baofeng UV-5R was not able to reach us on FM. He will be trying again next week.
We switched over to 145.03 Mhz SSB and it would appear required power dropped lower than what is required on FM. Might be worth some later experimentation to compare to our HF results.
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