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| ===== Description ===== | ===== Description ===== | ||
| - | Provides 160 meter operation at 75% power level for Models [[540]] and [[544]]. In addition to using 540/544 VFO for variable transceive operation, one of two owner-selected crystal positions can be used for transmitting while the VFO is used for receiving. This is useful for listening in the DX window and transmitting outside of it. Housed in matching enclosure. | + | Provides Models [[540]] and [[544]] transceivers with transmit and receive capabilities on 160 meters. Crystal controlled mixer converts 1.8 - 2 MHz signals to 3.5 - 3.7 MHz which are then tuned in the 80 meter mode. The crystal oscillator also mixes with the 540 / 544 VFO signal to provide proper injection for the transmitting mixer in the transceiver. A low pass filter is switched into the antenna line to reduce harmonics. Power input is reduced a nominal 25%. Panel switch also selects the two transceiver crystal channels when fixed frequency use is desired. Includes cables (less crystals). Housed in matching enclosure. |
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