====== Model R4020 ======
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===== Description =====
Two Band CW QRP Transceiver.  Covers the 40 meter and 20 meter amateur bands.  Receives SSB & CW. Transmits CW.  The R4020 QRP transceiver is not manufactured by TEN-TEC.

===== Related Links =====
  *[[http://groups.yahoo.com/group/TenTecR40Series/|R40XX Yahoo Group]]

===== Features =====

    *LCD display indicates frequency, mode, supply voltage, S meter, RIT and more.
    *BNC RF connector
    *Sensitivity (typical): 0.8 micro volts. MDS 0.2 micro volts
    *Transmitter power:  5 watts (typical)
    *DDS synthesizers allow 5-16 MHz general coverage receive.
    *20 frequency memory storage
    *Internal battery holders for eight “AA” alkaline batteries. An external (optional) 12 to 14 VDC regulated power supply may also be used.
    *Adjustable tuning steps for both Amateur bands and general short wave listening.
    *Current consumption: About 55 mA on receive or about 550-950 mA on transmit depending on supply voltage
    *Built in adjustable keyer with automatic CQ and call sign insertion for memory keying.
    *Use with straight key or your favorite key paddle.
    *Built in crystal filters for 2.2-1.6 kHz SSB or 900-400 Hz in CW
    *8 ohm headphone output (requires stereo plug). No internal speaker.
    *RIT allows for 10Hz or 100 Hz tuning
    *Power Plug- 2.1mm ID x 5.5mm OD with center positive. The Radio Shack part number for an equivalent is 274-1567.
    *Size: 5.7” X 3.7” X 1.4” (not including knobs)
    *Weight: 15.8 oz (not including batteries)