Differences

This shows you the differences between two versions of the page.

--- projects:jimbob [2013/09/04 14:05] – [Frequency] kevwal
+++ projects:jimbob [2020/05/21 08:44] (current) – [Launches] kevwal
@@ Line 1: / Line 1: @@
-====== Project JimBob & HabTrk ======
+====== Project Master - Kevin Walton ======
 This is the master page for all of my Near Space Ballooning projects
@@ Line 5: / Line 5: @@
 ====== Trackers ======
-====== JimBob ======
+===== JimBob =====
-  * [[projects:jimbob:bob|Bob]] - My first tracker, Arduinio Pro 328 3.3v, NTX 2 and uBlox MAX 6 on a Veroboard shield
+  * [[projects:jimbob:bob|Bob]] - My first tracker, Arduinio Pro 328 3.3v, NTX 2 and uBlox MAX 6 on a Veroboard shield - Lost to sea in Launch 1
-  * [[projects:jimbob:promini|ProMini]] - My second tracker, Arduinio Pro Mini V2 328 3.3v, RFM22B and uBlox Max 6, currently dead bug style
+  * [[projects:jimbob:promini|ProMini]] - My second tracker, Arduinio Pro Mini V2 328 3.3v, RFM22B and uBlox Max 6, currently dead bug style - Lost to sea in Launch 1
-  * [[projects:jimbob:promini2|ProMini2]] - My third tracker, Arduinio Pro Mini V2 328 3.3v, RFM22B and uBlox Max 6, currently dead bug style
+  * [[projects:jimbob:promini2|ProMini2]] - My third tracker, Arduinio Pro Mini V2 328 3.3v, RFM22B and uBlox Max 6, currently dead bug style - Ready for Launch 2
-====== HabTrk ======
+===== HabTrk =====
 A new series of trackers on my own PCB's, inspired by pAVA and such like.
-  * [[projects:jimbob:habtrk|HabTrk V006 - B1]] - V006 Board 1
+  * [[projects:jimbob:habtrk|HabTrk V006 - B1]] - V006 Board 1 - Successfully worked in Launch 3
   * [[projects:jimbob:habtrkv006b2|HabTrk V006 - B2]] - V006 Board 2
-====== Launches ======
+===== HabSml =====
-  * [[projects:jimbob:launch1|Launch 1 - Completed 01/12/2012]]
+Aiming for smaller and lighter than HabTrk, using TPS61200 for improved voltage regulation and [[guides:crystal_pulling|crystal pulling]] for [[http://ukhas.org.uk/guides:rfm22b#dominoex|DominoEX]] with an RFM22B.
-  * [[projects:jimbob:launch2|Launch 2 - awaiting HabTrk for backup tracker]]
-  * [[projects:jimbob:launch3|Launch 3 - Mini launch using just HabTrk tracker]]
+   * [[projects:jimbob:habsml|HabSml V007 - B1]] - V00X Board 1 - In progress
-====== Frequency ======
+====== Launches ======
-Frequency range legally available is 434.04MHz - 434.79MHz according to IR2030.
+  * [[projects:jimbob:launch1|Launch 1 - 'Full Size' launch - Completed 01/12/2012]]
+  * [[projects:jimbob:launch2|Launch 2 - awaiting HabTrk for backup tracker]]
-Point in time analysis using SDR and external collinear:
+  * [[projects:jimbob:launch3|Launch 3 - Foil launch using just HabTrk V006 tracker - Completed 07/08/13]]
+  * -
-  * 434.040MHz - Start of legal band
+  * [[projects:jimbob:launch4|Launch 4 - Foil launch using TTGO TBEAM tracker]]
-  * 434.046Mhz - Weak interference
-  * 434.075Mhz - NTX2
-  * 434.078Mhz - Weak interference
-  * 434.099Mhz - Weak interference
-  * 434.110Mhz - Weak interference
-  * 434.112Mhz - Weak interference
-  * 434.121Mhz - Weak interference
-  * 434.127Mhz - Weak interference
-  * 434.169Mhz - Medium interference
-  * 434.267Mhz - Weak interference
-  * 434.320 to 434.330 - Strong interference
-  * 434.330Mhz - Weak interference
-  * 434.347Mhz - Weak interference
-  * 434.361Mhz - Weak interference
-  * 434.369 to 434.379 - Strong interference
-  * 434.375Mhz - Emergency Comms
-  * 434.392Mhz - Weak interference
-  * 434.475Mhz - Internet voice gateway, 25khz
-  * 434.500Mhz - Internet voice gateway, 25khz
-  * 434.518Mhz - Weak interference
-  * 434.525Mhz - Internet voice gateway, 25khz
-  * 434.550Mhz - Weak interference
-  * 434.581Mhz - Weak interference
-  * 434.600Mhz - Repeater input, 25khz
-  * 434.613Mhz - Weak interference
-  * 434.625Mhz - Repeater input, 25khz
-  * 434.650Mhz - NTX2
-  * 434.650Mhz - Repeater input, 25khz
-  * 434.675Mhz - Repeater input, 25khz
-  * 434.700Mhz - Repeater input, 25khz
-  * 434.725Mhz - Repeater input, 25khz
-  * 434.750Mhz - Repeater input, 25khz
-  * 434.775Mhz - Repeater input, 25khz
-  * 434.790Mhz - End of legal band
-Thinking about frequency spacing, to be able to receive multiple transmissions with one dongle:
-Typical RTTY bandwidth is 650Hz, we probably want at least 3,000Hz gap to keep audio spectrum separate.
-Frequency drift research is very difficult, actual examples found are down at 1.1 or 5.7khz, advice is that they could drift 20khz.  50khz spacing seems a reasonable suggestion to allow for +20khz of one and -20khz of another.
+====== Misc ======
-We want to restrict the spacing to the FunCUBE Dongle bandwidth of 192,000hz, 50khz plus drift fits easily within this bandwidth.
+  * [[projects:jimbob:frequency|Frequency - documentation of my own thoughts on frequency use]]
+  * [[projects:jimbob:Radiosonde|Radiosonde - playing with a RS41-SG Radiosonde from Tom]]
 Any questions you can get in touch with me at kevin a t unseen d o t org.