Crossing the Atlantic with 2 milliwatts on 10m

wspr_qrpp

As I was letting my new WSPR transmitter stabilize yesterday afternoon I noticed a few stateside stations were decoding me even though the transmitter’s final amp circuitry was not yet on. Power output in this state is a bit under 2 milliwatts according to my recently calibrated QRP wattmeter. With that in mind, and considering…

WSPRing on 10m with W5OLF’s latest transmitter

wspr_axe

I managed to find time to assemble my 10m WSPR transmitter yesterday and put it on the air this evening. This is the 3rd version of such transmitters from Jay and it is significantly different than previous versions. For starters, it transmits 100% of the time and changes frequency semi-randomly from one 2-minute TX cycle…

Unusual (and expensive) HF antennas

2-30 MHz Vertically polarized Conical Monopole Antenna

My recent trip to OKC put me in close proximity to a lot of antennas. Two in particular caught my eye. More info about these and other similar antennas can be found here. . The first antenna is a vertically-polarized conical monopole covering 2-30 MHz. It is omnidirectional and used primarily for NVIS and shorter…

The Wichita Mountains – a drone’s-eye video

tx_link

I just spent a few days in Oklahoma and found time to drive to my favorite part of the state. I’ve done quite a bit of hiking, camping and QRP operating from the Wichita Mountains over the years but this time I left the HF radio gear at home and brought my video-capable quadcopter instead.…

CQWW 2014 – QRP & a battery take on the world

cqww_2014

. Well that was a whole lot of fun! I operated for a total of 5 hours and used a 1300 mAH battery to provide power to the KD1JV “Mountain Top Rig”. About 95% of my contacts were on 20m with the remainder being on 40m. Highlights: All continents worked 24 Zones worked 65 DX countries…