#### digitalanalog

##### Active Member

I calibrated the VNA, and set to 30-1200Mhz, set phase 1 to Resistance.

I bought 2 SMA to F adapters to connect the coax to the VNA.

I uncoiled the new coax and worked it for a while to get it to lay in a big "U" shape on the ground.

The results were very confusing to me, I admit I don't understand a whole bunch about coax, but these

numbers don't look right, with a reading as low as 24 ohms and as high as 109 ohm. How can this

be coming from One piece of coax, The saw tooth affect of ups and down just tells me this coax is

Junk, Am I right?

30 mhz. - 52.9 ohm 310 mhz - 29.3 ohm 590 mhz - 34.9 ohm 910 mhz - 55.1 ohm

40 mhz - 100 ohm 320 mhz - 59.9 ohm 600 mhz - 29.1 ohm 920 mhz - 97.3 ohm

50 mhz - 49.8 ohm 330 mhz - 38.1 ohm 610 mhz - 55.4 ohm 930 mhz - 55.7 ohm

60 mhz - 58.7 ohm 340 mhz - 39.6 ohm 620 mhz - 25.3 ohm 940 mhz - 55.3 ohm

70 mhz - 74.4 ohm 350 mhz - 72.9 ohm 630 mhz - 38.8 ohm 950 mhz - 68.9 ohm

80 mhz - 38.2 ohm 360 mhz - 37.2 ohm 640 mhz - 38.7 ohm 960 mhz - 39.5 ohm

90 mhz - 69.2 ohm 370 mhz - 73.2 ohm 650 mhz - 24.2 ohm 970 mhz - 60.6 ohm

100mhz - 41.0 ohm 380 mhz - 56.2 ohm 660 mhz - 51.7 ohm 980 mhz - 42.8 ohm

110mhz - 38.2 ohm 390 mhz - 49.1 ohm 670 mhz - 25.4 ohm 990 mhz - 39.5 ohm

120mhz - 63.2 ohm 400 mhz - 106 ohm 680 mhz - 34.9 ohm 1000 mhz - 51.1 ohm

130mhz - 29.8 ohm 410 mhz - 49.5 ohm 690 mhz - 38.7 ohm 1010 mhz - 31.5 ohm

140mhz - 45.1 ohm 420 mhz - 65.2 ohm 700 mhz - 25.4 ohm 1020 mhz - 43.1 ohm

150mhz - 37.4 ohm 430 mhz - 100 ohm 710 mhz - 55.6 ohm 1030 mhz - 39.1 ohm

160mhz - 27.2 ohm 440 mhz - 50 ohm 720 mhz - 31.8 ohm 1040 mhz - 33 ohm

170mhz - 51.8 ohm 450 mhz - 97.7 ohm 730 mhz - 35.9 ohm 1050 mhz - 51.0 ohm

180mhz - 24.4 ohm 460 mhz - 64.5 ohm 740 mhz - 53.7 ohm 1060 mhz - 27.6 ohm

190mhz - 38.9 ohm 470 mhz - 52.2 ohm 750 mhz - 30.8 ohm 1070 mhz - 34.5 ohm

200mhz - 32.6 ohm 480 mhz - 103 ohm 760 mhz - 66.2 ohm 1080 mhz - 35.7 ohm

210mhz - 24.8 ohm 490 mhz - 44.2 ohm 770 mhz - 40.5 ohm 1090 mhz - 33.2 ohm

220mhz - 49 ohm 500 mhz - 63.4 ohm 780 mhz - 43.8 ohm 1100 mhz - 44.3 ohm

230mhz - 24.8 ohm 510 mhz - 65.5 ohm 790 mhz - 76.9 ohm 1110 mhz - 31.1 ohm

240mhz - 33.5 ohm 520 mhz - 35.1 ohm 800 mhz - 42.7 ohm 1120 mhz - 37.6 ohm

250mhz - 38.7 ohm 530 mhz - 73.8 ohm 810 mhz - 65.3 ohm 1130 mhz - 38.4 ohm

260mhz - 23.9 ohm 540 mhz - 41.8 ohm 820 mhz - 72.5 ohm 1140 mhz - 29.1 ohm

270mhz - 53.7 ohm 550 mhz - 37.5 ohm 830 mhz - 49.4 ohm 1150 mhz - 47.9 ohm

280mhz - 27.0 ohm 560 mhz - 63.1 ohm 840 mhz - 109 ohm 1160 mhz - 37.6 ohm

290mhz - 38.3 ohm 570 mhz - 27.2 ohm 850 mhz - 63.5 ohm 1170 mhz - 44.2 ohm

300mhz - 45.4 ohm 580 mhz - 52.9 ohm 860 mhz - 67.5 ohm 1180 mhz - 44.9 ohm

870 mhz - 94.5 ohm

880 mhz - 53.2 ohm

890 mhz - 93. ohm

900 mhz - 66 ohm