WBCQ Official Website
Located in Monticello, ME. Jason Hill
Transmitter building on left. Trailer contains studio and other signal source equipment. |
Kitchen and lounge area of trailer. |
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Studio in trailer |
Pole transformers to the transmitter building. |
Collins | TMC GPT-40K |
Harris MW-50A | Hybrid Collins and TMC |
An early 70's Harris MW-50A Pulse-Duration-Modulation transmitter (shown above) modified for shortwave use (SW-50A!) provides the original 7415 frequency. A switching tube in series with the HT to the RF output tube is pulse width modulated with the audio signal at a frequency of approx 70Khz. The output of the tube, being a high voltage pulsed squarewave is then fed through a high powered low-pass filter to remove the 70Khz components and reconstruct the audio along with a DC component to supply the PA plate system. All transmitters were modified to operate using single phase rather than three phase service. |
Log Periodic Antenna |
In this series of photos, we follow an open pair transmission line from the feedthrough insulators on the transmitter building to the destination, which is the 5105 MHZ curtain antenna. |
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Curtain antenna. |
Log Periodic from the Gates 7415 |
WREM AM 710 up the road in next field. |
Ham Radio Rig Used by WA1HLR in another room of the transmitter building. Note BC610 |
Mascot |
Looking back from junction of Rt 1. |
Allan Weiner's Home |