Top band DX-ing is real ham radio challenge. 160m is also referred as the "Gentleman's band"...
160 meters - DX-ing on the Edge...

MW stick vs. Half Sloper antenna receiving test

11. listopadu 2010 v 1:20 | Petr, OK1RP |  Antennas
Hello,
mw
when I spoke to several DXers about the Mini Whip stick all of them said "uhh, Petr if You are interesting in serious operation on TB then forget it and focus on good RX loops or so".
I do not like to evaluate or reprobate anything (specially antennas) without testing it first and mainly You never know which antenna and when will help you to hear weak signals on the TB so...I have this stick now and there is comparison with TX antenna > based coil loaded 11m high half sloper (see preview article about it)...

10/11/2010
22:45  160m  W1MK  S6/sloper  S5/MW  (better s/n on MW)
22:53  160m  N3IR    S3/sloper  S2/MW  (better s/n on MW)
23:20  160m  VE1ZZ  S5/sloper  S4/MW  (the same readability)
23:20  160m  9K2YM  S6/sloper  S5/MW  (the same readability)
23:30  160m  W8FJ    S5/sloper  S5/MW  (better s/n on MW)
23:33  160m  K1VW   S4/sloper  S4/MW  (better s/n on MW)
23:35  160m  TK5IH   S6/sloper  S5/MW  (similar readability)

My personal feeling > in most cases the signal levels from MW were lower but quiter. The s/n ratio was definitely better on MW although the differences was not big sometime. Only in one case (TK5IH) I though that reception is better on Half Sloper because of stronger signal. 

The Mini Whip stick was mounted inside of the house in the attic just 50cm bellow the ridge of the roof. Feedline about 10m of the 50ohms cable down to the radioroom. Half Sloper is mounted about 5m far from the MW using the pipes into the total height of 11m where the base coil and sloped wire is mounted. Feedline is 27m of cable going down to radioroom. No radials yet just copper strap going along the pipes down to ground where it's connected to grounding point.
The distance between both antennas is no more then 5m.

Used radio Elecraft K3 where Notch 900Hz masking used, AGC off, AF gain at 11 o'clock, RF gain at 12:30 o'clock, DSP BW 150Hz (200Hz IF Inrad).

Of course there is no doubt that this stick is not comparable to full size Beverages or full size RX loops like Delta, K9AY or even HiZ phased verticals array but be noted that we are looking for "makeshift" solution compare to noisy TX antennas !

Interesting results...isn't it? What do You think about it?

More information You can find here: PA0RDT or here G3GRO

73 - Petr, OK1RP
...-.-
 

Buď první, kdo ohodnotí tento článek.

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