Plot the coverage on VHf or UHF from your QTH

Plot the coverage on VHf or UHF from your QTH

IARU-90 diploma

Nice addition to my collection :)

Double bazooka

Double bazooka...calculations done :) Thank you OH1AYR!

Qsl from 3b9fr!

Qsl confirming qso with rodriguez island....

40m inv v experiments :)

Quick test in the garden with inv v for 40m :)

Understanding propagation numbers

How To Read Propagation Numbers
The A index [ LOW is GOOD ]

• 1 to 6 is BEST
• 7 to 9 is OK
• 11 or more is BAD

Represents the overall geomagnetic condition of the ionosphere ("Ap" if averaged from the Kp-Index) (an average of the eight 3-hour K-Indices) ('A' referring to amplitude) over a given 24 hour period, ranging (linearly) typically from 1-100 but theoretically up to 400.
A lower A-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Ap-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.
 
SFI index [ HIGH is GOOD ]

• 70 NOT GOOD
• 80 GOOD
• 90 BETTER
• 100+ BEST

The measure of total radio emissions from the sun at 10.7cm (2800 MHz), on a scale of 60 (no sunspots) to 300, generally corresponding to the sunspot level, but being too low in energy to cause ionization, not related to the ionization level of the Ionosphere.

Higher Solar Flux generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; Solar Flux rarely affects the 30, 40, 60, 80, & 160 Meter Bands.

K index [ LOW is GOOD ]

• 0 or 1 is BEST
• 2 is OK
• 3 or more is BAD
• 5 is VERY VERY BAD

The overall geomagnetic condition of the ionosphere ("Kp" if averaged over the planet) over the past 3 hours, measured by 13 magnetometers between 46 & 63 degrees of latitude, and ranging quasi-logarithmically from 0-9. Designed to detect solar particle radiation by its magnetic effect. A higher K-index generally means worse HF conditions.
A lower K-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Kp-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.


Copyright VR2/KQ6XA and ARRL OES

Digital swr/power meter

Work begins now:)

Grid square map for Europe

Antenna rotator KR-400RC control unit schematic

KR-400 schematics

Hexbeam swr check and on the air

Hexbeam SWR checks and comparing with my Hustler 6BTV vertical

Hex beam up in the air !!!!! 01.12.2013

At least got hex beab ready on the mast!!!!!

Hex beam installed on 01.12.2013 at IO92QV

View from the bottom

Power sdr up and running :)

At least. Got fully working sdr system on my mac mini with i5 processor. Radio Flex-3000+power sdr. Ham radio deluxe as the logging software. Got some qrm, but will takes time to find the source :)

Power SDR

Flex-3000 fan modification - 11dB for £ 10.78 !!!

Hi, after week playing with the flex-3000 decided to change noisy cooling fans to them:
http://www.thecoolingshop.com/product_info/Noiseblocker-Black-Silent-Fan-XR1-60mm_31127.html

Technical details:
Dimensions: 60 x 60 x 25 mm
Weight: 60 g
Material: Plastic
Noise level: 11 dB (A)
Speed​​: 1,600 r / min
Airflow: 18 m³ / h
Starting voltage: 9 V
Voltage: 12 V
Power consumption: 0.6 W
Connector: 3-pin
Life expectancy: 30,000 hours.

On the transmit and if your schak really small (like mine :) you looking for quite system. 

73! de M0PKZ, Kes.

Cable instalation

Yesterday managed put the cables through. Using flex103 cable. Still waiting for a hex beam from Waldi-sp7idx:)

Greate circle map from IO92QV

My 30ft tennamast instalation:)