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    Because tech matters. Wherever on earth you are.

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The new IC-705 has many functions. One of them is D-Star terminal mode (TM).¬†Icom presents TM in two flavours: internal and external. Internal TM uses the WLAN connection and connects directly to the internet, no additional hardware required. However, you have to configure a TM capable reflector in settings. So changing reflector means changing settings. What is needed here is some TM “proxy”, that handles all connections and routes them to the different reflectors, based on D-Star linking commands. In addition, this proxy should implement some form of heartbeat so that the incoming UDP port on your router remains open, even when there is noRead More →

Both the IC-7300 and the IC-9700 have an IF output option. A great feature that enables the receive of all kinds of exotic transmissions. On the IC-7300, Icom pitched this feature at DRM receive. Soon after the IC-7300 launched, it became clear that the IF output bandwidth varies with the receive mode setting, which is illogical (Mr. Spock). For DRM receive, all is fine: set mode to AM, connect something like DREAM to the IF output and listen to PC audio. For CW skimmer, it’s a little more problematic, so maybe Icom only had DRM receive in mind when designing this. It will work, butRead More →

“My IC-7300 has lower power output compared to my previous transceiver.” Yes, with compressor off that’s true. Is the IC-7300 broken? No, it’s not. So what is wrong here? Often, the resulting discussion is about peak meters, PEP, settings, the weather and cosmic radiation. By chance I noticed, when changing tune power levels in WSJT-X, (the slider on the right) that the IC-7300 ALC has very fast attack time. An input level increase above max output level is corrected very quickly (to avoid overshoot). But then the reverse action, the same input level decrease, is followed very slowly by the ALC. It takes up toRead More →

I’ve decided to stop trying to use two different computers (one Win10 PC for amateur radio and one Mac Mini) more or less at the same time, switching back and forth keyboard and screen. So I upgraded my Parallels to version 15 (at reduced price..), installed Win10 on the Mac Mini and started to transfer the different amateur radio programs to the new Win10 virtual machine. Running WSJT-X on Win10 in Parallels works, but I noticed dropouts on transmit. No issues on receive, only transmit. Audio is all about timing, and generating the WSJT-X audio requires proper timing, something that a virtual machine will struggleRead More →