====== Austere QO-100 Bill of Materials and Plan ======

===== TL;DR =====

I want to work QO-100 but I don't know if I want to work it and I'm done, or if I want a permanent QO-100 station. So, I want a plan to build my QO-100 in an Agile fashion, based on my interest and time.

All thoughts / comments / suggestions are welcome as I progress this.

===== Current Status =====

I've revised by build for Phase 1T and ordered the parts. Also working on some DATV parts like a Portsdown 4 so I can receive DATV from QO-100. Next step is to find a decent receive dish locally.

==== Principles of the Build ====

  - Reuse existing kit where possible
  - Make or buy will be decided on time / money
  - Start with the smallest / easiest functioning unit and build up
  - The perfect is the enemy of the good enough - I'm not building the best QO-100 station, just a good enough one

===== Outline Plan =====

Phase 1R - Initial receive

Phase 1T- Initial transmit

Phase 2R - Improved receive

Phase 2 - Integration of RX and TX into a single station

Phase 3 - Integrate with [[https://wiki.batc.org.uk/Portsdown_4|Portsdown 4]] for DATV

==== BOM for Phase 1R ====

Use [[https://eshail.batc.org.uk/nb/|Goonhilly BATC WebSDR]] for receive

==== BOM for Phase 1T ====

We will go from Rig -> Antenna

  * Rig - IC-705 - already own and more than capable of all the modes I want to use
  * Patch lead from IC-705 to transceiver - BNC to SMA probably
  * Transverter - TBC but options are [[http://www.sg-lab.com/TR2300/tr2300.html|SG Labs Transverter]] but I can't find pricing or a UK supplier. Thoughts welcomed!
  * Patch lead from transverter to PA or antenna - SMA to SMA (PA) or N-type (antenna)
  * PA - might not be needed as 2W out into a 24dBi dish is 300W EIRP...
  * Antenna support - Lidl Bike workstand - already owned
  * Antenna - [[https://www.wimo.com/en/18686-24|Wifi Grid dish antenna Alu 2,4GHz 24 dBi]] - ordered from Wimo

Decided to replace the Transverter to PA with Easy-100 from [[https://rsgb.org/main/files/2020/01/Easy-100_update_RadCom_June_2019.pdf|RADCOM June 2019]] article. This has the following BOM:

  * [[https://www.ebay.co.uk/itm/282736491856|10dB 10W Attenuator]]
  * [[https://www.ebay.co.uk/itm/224495729651|433M Bandpass filter]]
  * [[https://www.ebay.co.uk/itm/295340048202|2450MHz Bandpass filter]]
  * [[https://www.ebay.co.uk/itm/394119453821|10x SMA-SMA patch leads]]
  * [[https://www.ebay.co.uk/itm/194223395941|5V and 8V DC Voltage regulators]]
  * [[https://www.ebay.co.uk/itm/334290015097|RF Sig Gen (for the LO)]]
  * [[https://www.ebay.co.uk/itm/254323332633|ADL5350 Mixer module]]
  * [[https://www.ebay.co.uk/itm/154735730045?var=454828031809|Low noise amps]]
  * [[https://www.aliexpress.com/item/4001145704450.html|8W wifi power amp]]

==== BOM for Phase 2R ====

Again, we will go from Rig -> Antenna

  * Rig - PC already owned, using SDR Console
  * Rig - [[https://www.sdrplay.com/rsp1a/|SDR Play - RSP-1A SDR]] - already owned
  * Cable from Rig to LNB - Sat cable?
  * Bias - T - LNB needs 12V and I think SDR Play only supplies 4.7V / 100mA
  * LNB - [[https://www.amazon.co.uk/dp/B08GJ6B1HB|QO-100 Bullseye TCXO LNB]]
  * Dish - to be sourced - probably local / 2nd hand
  * Dish support - TBC

==== BOM for Phase 2 ====

Fully integrated, full duplex solution?

  * Rig - IC-9700 or other full duplex radio
  * Patch cable / Bias-T (from IC-9700 to Feedpoint)
  * Integrated Feedpoint for example [[http://www.hybridpretender.nl/poty.html|POTY]] or [[https://www.passion-radio.com/satellite-qo-100/lnb-dj7gp-amsat-1218.html|DJ7GP V2 2.4 Ghz & 10 GHz antenna with LNB modified 24 Mhz AMSAT DL]]
  * Dish - reuse from Phase 2R
  * Dish Support


===== Resources =====

[[http://watkin-online.com/openpage.html|Upside-down dishes]]