John's Vademecum

Try to learn something about everything, and everything about something -Thomas Huxley “Darwin's bulldog” (1824-1895)

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Trace: • Hints & Tips • Rig and Key List • DM41X HP16C Module
public:radio:active:start

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public:radio:active:start [23/05/23 07:41 BST] – [May 2023 Update] johnpublic:radio:active:start [06/03/25 06:49 GMT] (current) – external edit 127.0.0.1
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-====== 2023 Projects ======+====== 2023 Radio Topics ======
  
- +  * Things I've been doing in 2023.  
- +  * Some may have only been short-term dead ends, and will be moved to [[public:radio:dormant:start|]] in due course.
-==== May 2023 Update ==== +
- +
-=== Internet Connected Radio === +
-  +
-  * I am going to avoid any radio modes/methods that **require** an internet connection. I feel more and more that amateur radio communication should be radio <-> radio only +
-  * The Internet is useful as an "accessory" to the actual communication (spotting for WSPR, PSKReporter etc.), but I feel increasingly that it shouldn't be a necessary part of the communication itself, which should rely on RF alone.  +
-  * "Normal" Repeaters are okay - it's RF all the way: User <-> Repeater <-> User.  +
-    * No DMR Hotspot +
-    * No Fusion/YSF Hotspot +
-    * No AllStar Link +
-    * No Echolink +
-    * No APRS i-Gates +
-      * I accept that my packets //may// reach the APRS-IS network via other i-Gates, but that doesn't mean I should run an i-Gate myself. +
-      * From [[http://www.aprs.org/]] +
-        * ''APRS is not a vehicle tracking system. It is a two-way tactical real-time digital communications system between all assets in a network sharing information about everything going on in the local area.'' +
-        * Nothing about APRS //requires// that the packets reach the whole world via i-Gates and the APRS-IS network +
-        * I may keep an APRS Digipeater running most of the time, to assist ''local'' APRS connectivity on-air. There's no need for packets to span the world, though. +
- +
- +
-=== Transmitter Power === +
-  +
-  * I am going to limit my TX power to 20W (all bands) for the rest of the year  (and possibly for ever?) +
-  * Some of my reasons for doing this include +
-    * No large, noisy PSU capable of the high current needed to power a 100W transceiver +
-    * 20W is still "reasonable" (not QRP) power +
-    * Easier to make homebrew equipment, antennas, ATUs etc. when only dealing with relatively low power +
-    * 20W radios only draw ~5A and can be powered from "accessory" socket in a vehicle (not ideal, but workable) +
-    * 20W will give an approximation of the power levels used in commercial/military manpacks +
-    * 20W will cause less RFI to equipment in the shack. +
-    * Lower power on the bands means less QRM, less reason for other people to feel the need to wind up their power etc. +
-    * It'll be instructive to be more mindful of propagation conditions, MUF, Critical Frequency etc. when choosing a band.  +
-      * Be frequency agile, rather than brute-force a QSO with high power on a band that's really unsuitable. +
-    * I'm just perverse that way... +
- +
-== Steps to 20W == +
- +
-  * //Mothball// the IC-M710 and 60A PSU - which will liberate a significant space in the shack for new homebrew projects. +
-  * Use my homebrew 60m transceiver (plus commercial amp) at 20W for the bulk of my 60m digimode (Olivia, mainly) QSOs +
-  * Install the G90 in a more permanent location in the shack, for use on CW, SSB and digimodes. +
-    * I now admit that I'm not going to get //much// use of the G90 as a portable HF radio and it's a waste to leave it permanently in a Peli case in the van and never get any use from it. +
-  * Connect up the QCX+ 40m CW transceiver that I built but have never used on the air, and have some QRP CW QSOs +
-  * Change "Service" config of TM-D710 to make L -> 5W, M -> 10W and H -> 20W +
-  * Program any/all FM1100 for Power Level 4 (15W) on all channels  +
- +
- +
-=== Plans for the year ahead === +
- +
-  * build 17m CW "phasing" RX +
-  * build 17m CW TX - QRP 5W +
-  * Work some CW using bug and straight key +
-  * Monitor 10m FM and try to have some QSOs - call CQ regularly +
-  * Install an FM1100 for 4m (& SIC Roads Low Band) in Shack - antenna?? +
-  * Work some more JS8Call +
-  * Work some more SSB+
  
  
 ====  This year's Radio Projects ==== ====  This year's Radio Projects ====
  
-<catlist -columns:3 -maxDepth:1 -nohead -sortByTitle>+<catlist -columns:3 -maxDepth:2 -nohead -sortByTitle>
  
  
public/radio/active/start.1684824074.txt.gz · Last modified: 06/03/25 06:49 GMT (external edit)