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PA0RDT Active Antenna - QSL.net
https://www.qsl.net/g4aon/pa0rdt_aa/
The original PA0RDT antenna articles are widely available on the web. The feeder has to be grounded to an earth rod near the antenna, add a feedline choke in the coax run on the shack side of this earth rod. 12 turns of coax through an FT240 …
PA0RDT Mini-Whip - Quebec DX
https://www.quebecdx.com/pa0rdt_mini_whip.html
As previously mentioned, I was sceptical about the mini-whip performance given the fact that I’ve been used to work with long Beverages for years.Nevertheless, with some little help of the RPA-1 preamplifier, Roelof Bakker’s pa0rdt mini-whip …
PA0LQ Narrow Audio Filter - QSL.net
https://www.qsl.net/ko6bb/PA0LQ_Narrow_Audio_Filter.html
The PA0LQ Narrow Audio Filter This article describes the construction and use of a very narrow, fixed frequency audio filter suitable for DXing NDBs (Non Directional Beacons) under the most difficult of conditions. It was designed by PA0LQ and …
NDB LIST CLE No. 102
https://www.ndblist.info/cledata/CLE102eu.pdf
PA0RDT Narrow Bandwidth Audio Filter, Wellbrook ALA100 + 1530 Loops, Inverted L with Wellbrook UMB, PA0RDT Micro-Whip, Datong AD370 Active Antenna, Phasing Unit, SEM QRM Eliminator ENG b3 Brian Keyte, while at Messingham, N.Lincolnshire AOR AR7030 with 300 Hz filter, PA0RDT Mini-Loop 6.5m high and long wire fence running E-W
RA0SMS vs PA0RDT Active Mini Whip - RA0SMS is Very Noisy ...
https://www.sdrplay.com/community/viewtopic.php?t=4128
Both the PA0RDT and RA0SMS are powered by a 12v wall wort (same model #), on a non conducting mast @ 20 feet, and fed with 50 ohm coax. The radio is a Yaesu FT-950 with an RSP2 as a panadapter. The 12v power supply is choked with snap-on ferrites. The RA0SMS produces noise approximately every 10 KHZ - the noise is present from LF all the way ...
RA0SMS vs PA0RDT Active Mini Whip - RadioReference.com
https://forums.radioreference.com/threads/ra0sms-vs-pa0rdt-active-mini-whip-ra0sms-is-very-noisy-why.383699/
Both the PA0RDT and RA0SMS are powered by a 12v wall wort (same model #), on a non conducting mast @ 20 feet, and fed with 50 ohm coax. The radio is a Yaesu FT-950 with an RSP2 as a panadapter. The 12v power supply is choked with snap-on ferrites.
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