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Antennas Status

Status 2009–09–21

• 80M INVERTED V - I restrung the loose end of the inverted-V which was laying on the ground. This antenna IS NO LONGER a fire hazard (at least not at the power levels we can generate from building 173 :-)
• CUSHCRAFT A3WS WARC BEAM - It appears that facilities threw away the driven element halves for the A3WS which were sitting on the ground right next to the north wall of building 173. So now we have a boom, a reflector, and a director (doh!!)

Status 2009–09–18

There a few problems and issues with the antennas upon the mesa. The rotator on the Rohn 45 tower currently has an unknown issue and its operation is described as “flaky.”. The fuse is blown on the controller, so it is probably best not to replace the fuse and turn the antennas until the rotator up on the tower can be inspected for damage.

The loading coil on the reflector of the 40 meter Yagi is damaged so the antenna currently only operates as a rotary dipole. There are currently no dedicated WARC band antennas due to wind damage of those antennas. The R7000 vertical fell off the water tower when the mast fractured several years ago in a wind storm and has not been fixed and put back up. The A3WS WARC yagi with 30 meter rotary dipole was also damaged in a wind storm. This antenna has been removed from the crank-up tower that is located near water tank pending repair or replacement. The K9AY loop receive antennas (for 80 meters, 160 meters) have termination issues that need diagnosis.

The following is a summary of what DOES work:

• Cushcraft TH7DX - covers 10m, 15m, 20m
• 40m two element Yagi works as rotary dipole on 40m and 17m
• 80m INVERTED V - covers 80m (covers 30m and 75m w/tuner) [NOTE: one end of this inverted-V is on the ground so be advised that using this antenna for transmit may start of FIRE!!]
• 80m delta loop - covers 80m (covers 30m and 75m w/tuner). The contacts on the Ameritron remote antenna switch are dirty again so the antenna appears dead on receive until you wet the relay contacts with a little RF.
• 160m inverted V

W6VIO Hardline Schematics

Create RC5-A3 WARC Rotator Bolt Pattern Diagram (click on image for larger view)

A3WS WARC Antenna Wind Damage

A3WS WARC Antenna - Driven Element Center Insulator Failure Photo

WARC Tower - MW-65 Top-Section View

WARC Tower - Tri-Ex MW-65