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- 20:26, 13 April 2019 diff hist +37 N File:20190413 180639 (Small).jpg A Portsdown 2019 transmitter by M0YDH current
- 20:22, 13 April 2019 diff hist +40 N File:20190413 180629 (Small).jpg Portsdown 2019 with 3.5" screen by M0YDH current
- 15:35, 3 February 2019 diff hist +391 23cms ATV →23cms FM ATV equipment: 3 other makes of FM transmitter current
- 13:26, 2 February 2019 diff hist +103 Using LimeSDR with Portsdown →WARNING - High Power Output During Calibration Before Transmit: video
- 12:48, 2 February 2019 diff hist +1 8-Band RF Output Switch →Version 2 PCBs
- 12:48, 2 February 2019 diff hist +89 m 8-Band RF Output Switch →Version 2 PCBs
- 12:45, 2 February 2019 diff hist +94 8-Band RF Output Switch →Version 2 PCBs: V2.3 assembled board pictures
- 12:41, 2 February 2019 diff hist +42 N File:20190201 182818-1008x756.jpg Underside of V2.3 8 band RF switch - M0YDH current
- 12:40, 2 February 2019 diff hist +40 N File:20190201 182759-1008x756.jpg 8 Band RF Switch V2.3 assembled by M0YDH current
- 18:42, 31 January 2019 diff hist +14 m Output Attenuator →RF Connections: or Lime SDR
- 19:11, 30 January 2019 diff hist +303 8-Band RF Output Switch →Version 2 PCBs
- 19:06, 30 January 2019 diff hist +76 8-Band RF Output Switch →Version 1 PCBs: New Parts List
- 18:47, 30 January 2019 diff hist +116 N File:8 BAND RF SWITCH V2.2 PARTS.xls 8 Band RF switch parts lists for Portsdown filter modulator V2.2 and alternatively Lime Mini SDR - V2.3 per CQ-TV262 current
- 21:55, 18 November 2018 diff hist +135 Mapping tools →Radio link and path software
- 21:52, 18 November 2018 diff hist +45 N File:Cleeve Common to Titterstone Clee Hill.JPG Screenshot of Microwave Path Profile by G0MJW current
- 21:34, 18 November 2018 diff hist +938 Mapping tools →Radio link and path software: G0MJW's path profile
- 18:19, 22 May 2018 diff hist +802 Mapping tools →Finding line of sight paths: Radio Mobile and MicroDEM
- 19:19, 7 May 2018 diff hist +34 m 23cms filters DB6NT LPF
- 19:11, 7 May 2018 diff hist +952 23cms filters DB6NT PCB 58 low pass filter
- 18:48, 7 May 2018 diff hist +66 N File:DB6NT 23cm low pass filter.jpg Michael Kühner's PCB number 58 is a LPF and coupler for 23cm band current