1. RFI measurement in Tibet Jianli Zhang 5/8/2014

2. Equipment 1 butterfly antenna 4 amplifiers (60dB) A li-battery for amplifiers (12V) Spectrum analyser Cables

3. Settings for spectrum analyser: Spectrum analyser with RBW = 30kHz, Attenuation=0dB. Frequency range = 100KHz-300MHz Set sys-settings-input/output, 75ohm(In YBJ 50ohm) For all measurement go to ’Averaging’ mode on the Spectrum Analyser, with at least 10 measurements for 1 average track.

4. Four measurements for one site Amplifiers + SpectrumAnalyser (end of antenna output cable unplugged). All electronics OFF. Amplifiers + SpectrumAnalyser (end of antenna output cable unplugged). All electronics ON. Antenna+ Amplifiers + SpectrumAnalyser (antenna output cable plugged). All electronics ON. 1 measurement at Galactic minimum (~11:30am in summer in YangBajing China) with antenna oriented E-W, one with N-S. Same as 3., but now at Galactic maximum (~23:30pm midnight in summer in Yangbajing China)

5. Position: 30°6'7.82“N 90°31'25.92“E With LNA#4 and #5 Spectrum analyser 50 Ohm The distance from antenna to Spectrum analyser 6m There was a storm at 6pm(20140725) YangBaJing 201407252330 201407261120

6. Galactic max and min @YangBaJing

7. Dingri Position: 28°34'9.13" N 86°51'21.95" E With LNA#1 and #2 Spectrum analyser 75 Ohm The distance from antenna to Spectrum analyser about 6m The height of the antenna is about 1.3m 201407301220 201407302330

8. Galactic max and min @Dingri

9. With Li Jianbi’s equipment @Dingri With LNA#1 Desktype spectrum analyser 50 Ohm

10. PuMaJiangTang Position: 28°34'16.43"N 90°11'34.06"E With LNA#1 and #2 Spectrum analyser 75 Ohm 100 measurements for this track The distance from antenna to Spectrum analyser 6m The height of the antenna is about 1.4m 20148021130