Wednesday, 31 October 2012

SWL with HF-150

Lowe HF-150 & Howes Filter


After switching on last weekend and hearing nothing but contests, I decided to set up my old Lowe HF-150.
The idea being that I can do a bit of SW broadcast listening when tinkering on the bench with other things.
So I didn't tie up the main HF aerials , an old Howes AA-2 active aerial dipole was installed in the attic space.This set up works quite well in conjunction with another Howes kit, a dual bandwidth audio filter - in case of QRM .
I had forgot how nice a strong AM station can sound on the Lowe set through a reasonable speaker or headphones.
Also have a Datong active aerial but this proved a little too strong for the HF-150 with it's wide open front end, causing overloading and spurious signals.Perhaps a few metres of wire and a 'magnetic' balun outside, may prove more suitable.

Howes AA2 Active Aerial





Saturday, 20 October 2012

RBN reporting attic doublet

I was quite surprised to see a reverse beacon report from N7TR in Reno, Nevada ! which is around 5,000 miles short path. This was on 28Mhz CW, 5 watts qrp into a doublet in the attic.
Just shows when 10m is open you can use  qrp and wet string..



rows to show:
showing spots for DX call: MW0IAN 
search spot by callsign
dedxfreqcq/dxsnrspeedtime
OL5Q MW0IAN10129.0CQ10 dB18 wpm1742z 20 Oct
W3LPL MW0IAN28061.1CQ2 dB18 wpm1649z 20 Oct
N7TR MW0IAN28061.1CQ8 dB18 wpm1646z 20 Oct
IK3STG MW0IAN10129.0CQ8 dB18 wpm1640z 20 Oct
DR1A MW0IAN10129.0CQ6 dB18 wpm1640z 20 Oct
DJ3AK MW0IAN10129.0CQ16 dB18 wpm1639z 20 Oct
S50ARX MW0IAN10129.0CQ10 dB18 wpm1639z 20 Oct
ES5PC MW0IAN10129.0CQ12 dB18 wpm1639z 20 Oct
EI6IZ MW0IAN10129.0CQ20 dB18 wpm1639z 20 Oct
DK9IP MW0IAN10129.0CQ17 dB18 wpm1639z 20 Oct