{"action":"created","issue":{"url":"https://api.github.com/repos/sinara-hw/Booster/issues/10","repository_url":"https://api.github.com/repos/sinara-hw/Booster","labels_url":"https://api.github.com/repos/sinara-hw/Booster/issues/10/labels{/name}","comments_url":"https://api.github.com/repos/sinara-hw/Booster/issues/10/comments","events_url":"https://api.github.com/repos/sinara-hw/Booster/issues/10/events","html_url":"https://github.com/sinara-hw/Booster/issues/10","id":318920685,"number":10,"title":"Higher power instability","user":{"login":"hartytp","id":21218399,"avatar_url":"https://avatars0.githubusercontent.com/u/21218399?v=4","gravatar_id":"","url":"https://api.github.com/users/hartytp","html_url":"https://github.com/hartytp","followers_url":"https://api.github.com/users/hartytp/followers","following_url":"https://api.github.com/users/hartytp/following{/other_user}","gists_url":"https://api.github.com/users/hartytp/gists{/gist_id}","starred_url":"https://api.github.com/users/hartytp/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hartytp/subscriptions","organizations_url":"https://api.github.com/users/hartytp/orgs","repos_url":"https://api.github.com/users/hartytp/repos","events_url":"https://api.github.com/users/hartytp/events{/privacy}","received_events_url":"https://api.github.com/users/hartytp/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-04-30T14:56:59Z","updated_at":"2018-04-30T15:05:04Z","closed_at":null,"author_association":"COLLABORATOR","body":"@gkasprow measurement setup:\r\n- Booster ch0 driven by a synth at 200MHz. RF power is either -8dBm or -11dBm input\r\n- Measuring the output power on an RF power meter using -45dB high power attenuator between booster and the power meter. Thus, the gain of booster appears to be approx 0dB when the attenuators are included\r\n\r\nSee the attached video (apologies for filming upside down on my phone!):\r\n- Synth starts off, meter reads -63dBm\r\n- Turn RF on at -11dBm, the meter reads -11.3dBm. Leave that alone for a few seconds to demonstrate that Booster's output power is stable.\r\n- Next, turn the synth to -8dBm. Meter reads -9.3dBm, as expected\r\n- After a few seconds, Booster's output power ramps down to -10.3dBm over about 1s. Wait for a few seconds there to demonstrate that this is stable at this new output power\r\n- Now, turn the synth back to -11dBm. Output power is now -12.4dBm. After a few seconds, the output power increases to -11.4dBm without me doing anything at all. Now wait for a few more seconds to show that Booster's output power is stable at this level.\r\n- Now (around 00:30) turn synth back to -8dBm. Again, the power is -9.3dBm, but decreases by about 1dB after a second or so and stays there.\r\n- One more time, I go to -11dBm input and see the same as before.\r\n- Finally, I show a scope with traces on the 5V and 28V power lines. I toggle between -8dBm and -11dBm on the synth. A small glitch can be seen on the 28V line when I toggle between the two, but other than that there is nothing to be seen. So, it seems that this issue is not to do with these power lines.\r\n\r\nAre you able to reproduce this? Are there any other tests you would like me to perform?\r\n\r\nThanks\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/sinara-hw/Booster/issues/comments/385426863","html_url":"https://github.com/sinara-hw/Booster/issues/10#issuecomment-385426863","issue_url":"https://api.github.com/repos/sinara-hw/Booster/issues/10","id":385426863,"user":{"login":"hartytp","id":21218399,"avatar_url":"https://avatars0.githubusercontent.com/u/21218399?v=4","gravatar_id":"","url":"https://api.github.com/users/hartytp","html_url":"https://github.com/hartytp","followers_url":"https://api.github.com/users/hartytp/followers","following_url":"https://api.github.com/users/hartytp/following{/other_user}","gists_url":"https://api.github.com/users/hartytp/gists{/gist_id}","starred_url":"https://api.github.com/users/hartytp/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hartytp/subscriptions","organizations_url":"https://api.github.com/users/hartytp/orgs","repos_url":"https://api.github.com/users/hartytp/repos","events_url":"https://api.github.com/users/hartytp/events{/privacy}","received_events_url":"https://api.github.com/users/hartytp/received_events","type":"User","site_admin":false},"created_at":"2018-04-30T15:05:04Z","updated_at":"2018-04-30T15:05:04Z","author_association":"COLLABORATOR","body":"https://drive.google.com/open?id=18rjKjgueQRWgvrGoNTXqZU5HJNA7Z3WH"}}
{"actor":{"display_login":"hartytp"}}