Antenna Array at G7HRP covering:-
2M/70cms Diamond X50 Gain 4.5/7.5 dB
4M Di-pole (Vertical Polarisation) Gain Unity
Diamond A144S5 Yagi 9.1dBi (see PDF)
Diamond A430S10 Yagi 13.1dBi (see PDF)
Sandpiper 11 element 23cm Yagi 11dBd gain (vertical)
Clarke 11.4M push up mast and rotator used for monoband beams
All antennas are fed with around 10m of Pope H100 air spaced coax
Calculations show that the 2M set up is running at around 400W (25dbw) ERP or 645W (28dbw) EIRP and 70cm is running at around 680W (28.3dBw) ERP or 1.1kW (30dBw) EIRP once feeder losses etc etc are taken into account. A calculator can be found at http://www.csgnetwork.com/antennaecalc.html
Not Shown G5RV in Woodland to rear of the main garden
I am very impressed with the build quality of the Diamond Antennas at £29 for 2M and £31 for the 70cm
you accept that they are not Tonna's but they are very light and are fed with a proper connecter instead of direct
feed pity its a PL259 and not an N Type but there you go ! No matching to do just stick them in the air and off
you go. You can purchase these from Waters and Stanton.
