RF Cafe Software
About RF Cafe
1996 - 2022
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
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January 1967 QST
New Look at W1AWW1AW and the Hq. building are situated on a 7-acre site with plenty of room for antennas. Three self-standing 60-foot steel towers (two are visible on the front cover) support 3-element Yagi beams for 20, 15, and 10 meters. A 6-meter omnidirectional antenna shares one tower with the 15-meter beam and a 2-meter omnidirectional antenna is on another tower with the 10-meter beam. For 40, 80, and 160 meters, half-wave horizontal wires are used. The 80 and 40 meter doublets are center fed: the 160-meter doublet is end fed. Feed lines for all the antennas are situated underground and, on 40, and 160 meters, the underground coax terminate at remotely controlled antenna couplers located on the ground directly below the antenna feed points. Open-wire feeders connect the antennas to the tuners.
"Old Betsy," W1AW's 1920 spark transmitter, is on display in the foyer.
The master control console contains several receivers, signal monitors, transmitter exciters, punched-tape keyer (for code practice and bulletins) and operating accessories. Against the wall at the left is the RTTY position. The rack at the right is a back-up transmitter and RTTY transmitter.
Another view of the transmitter racks taken from behind the visitor's operating position.
In case of a power failure, this 20-kw. 220-volt emergency generator located in W1AW's basement can handle the entire load at W1AW including light, heat and communications. The unit is electrically started and the engine is fueled by propane gas. Notice the emergency lighting on the wall at the upper left. This light (and others located throughout the building) come on automatically with loss of power.
Visitors are always welcome at the station and upon entering are requested to sign the guest log.
Another view of the console which faces the transmitter racks (right) and the visitor's operating position.
Close-up view of the transmitter racks. In the top two rows are some of the 1-kw. finals for 80 through 10 meters (two more to be added.) Other equipment includes a 50-watt 160-meter transmitter, 200-watt 2-meter transmitter, 200-watt 6-meter transmitter, antenna patch panel, and converter to change the 3 Mc. signal from the console exciter to the various amateur bands, 80 through 10 meters.
The W1AW workshop is well equipped for emergency repairs or general maintenance.