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EF7017

FREE SPACE DIMENSIONS
REF DE D1 D2 D3 D4 D5 D6 D7
POSITION 0 153 219 349 501 706 971 1248 1546
4 mm 337 330 316 303 300 296 293 289 286
5 mm 335 332 314 301 297 294 290 286 282
6 mm 332 329 312 299 295 291 287 283 279
  D8 D9 D10 D11 D12 D13 D14 D15
POSITION 1858 2172 2490 2808 3150 3466 3778 4130
4 mm 282 278 274 270 266 262 258 256
5 mm 278 274 270 266 262 258 254 252
6 mm 275 271 267 263 260 257 254 251

SPECIFICATIONS

 4 mm 5 mm 6 mm
GAIN dBi 17.57 17.54 17.63
F/B dB 20.69 22.01 20.50
TA °K 28.90 27.20 27.00
G/T dB 2.93 3.19 3.31
STACKING m SH = 1.520     SV = 1.450

4 YAGI BAY

  4 mm 5 mm 6 mm
GAIN dBi 23.34 23.32 23.38
TA °K 28.20 26.90 26.70
G/T dB 8.83 9.02 9.11

 

you might be interested to see the result of my last open air plotting session

 
Thomas, DL1TGN was so kind to lend me a Russian OZBOR Planar TR1300/1 analyzer.
So that after 4 years I was able to plot the EF7017 properly that originally was meant to be
another WiMo Pilot and my DX Yagi here.
 

Building Details:

Ele. 6 mm, DE 10 mm, Boom 20x 20 mm, YBN On Boom BC 7.5 mm, Standard Plastic Insulators + M3 Screws.
Folded Dipole: outer Length 335 mm, inner Height 38 mm - mounted Upside-Down, measured Balun Length.
D1 modified due to FD: L = 313.0 mm incl. BC , Pos. 229 mm