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T2FD -- a match for any antenna

Tests were conducted at the home of Fred Carlisle, a DXer from rural Yelm, Washington. Nearby his home is a large dairy, whose processing equipment operates day and night and generates some amount of electrical interference. The noise was rarely audible on the T2FD, yet signal strengths were comparable to (or better than) the other antennas in use, on a range of frequencies:

The 500 ft. and 50 ft. antennas were switched in and out of the receiver's high impedance input, the T2FD fed the 50 ohm coax input. The receiver used was a JRC NRD525 with a custom, highly accurate analog S­meter. The meter is calibrated to the industry standard S­units/microvolts scale.

As the results show, the T2FD antenna did not begin to drop off in performance until down in the 120 meterband. This is well below the 60 meterband design frequency of this particular T2FD.

FREQ/STN
T2FD (NW-SE)
50' (N-S)
500' (E-W)

17680 RNZ

S9

S8-S9 w/buzz

S9 w/buzz

17700 RM

S7­S8

S7 w/buzz

S7 w/buzz

17795 RA

S8

S6-S7 w/buzz

S7 w/buzz

15440 RBI

S6­S7

S6 w/loud buzz

S6 w/loud buzz

15435 BSKSA

S7­S8

S7 w/loud buzz

S7 w/loud buzz

15330 RAI

S5-S6

S5 w/loud buzz

S6 w/loud buzz

12085 RD

S8-S9

S8­S9 slight noise

S8-S9 slight noise

11955 RJ

S9+10dB

S9-C9S8

S9+10dB

11940 RJ

S8

S9

S9

11505 RB

S4-S5

S4 moderate noise

S4-S5 slight noise

9895 RM

S9+10dB

S7

S9

9425 VoG

S6-S7

S5

S6

9375 RT

S8

S6 slight noise

S7 slight noise

7355 WYFR

S8-S9

S6-S7

S7

7335 CHU

S8-S9

S6

S7­S8

7255 VoN

S7-S8 slight noise

S5-S6 mod. noise

S6­S7 slight noise

6165 RN

S9+15dB

S9+10dB

S9

6150 Rl

S7-S8

S7

S6

6135.4 RFO

S7­S8

S6 some noise

S6

5030 TBC

S5 slight noise

barely audible

S5 slight noise

5000 WWV

S9+10dB

S9+10dB

S9

4985 R.Bras.Cent.

S5

S5

S6

4915 Anhanguera

S4­S5

S5 noisy

S5 some noise

4885 O. del M.

S6

S6 slight noise

S6 slight noise

4865 L.V. de C.

S6

S6-S7

S5-S6

4765 RM

S7

S7 slight noise

S6­S7

3990 VOA Liberia

S4-S5

S5

S5

3975 BBC

S5

S5

S5

3330 CHU

S5 strong noise

S5 strong noise

S5 strong noise

3385 Rebelde

S5

S5 some noise

S6 some noise

2500 WWV

S6

S6-S7 some noise

S8

1610 TIS stn.

S5

barely audible

S8­S9



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