Mmr4o Cw/ssb  40 Meter Transceiver Kit

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Mmr4o Cw/ssb  40 Meter Transceiver Kit

The MMR-40 Transceiver
Designed by Steve Weber. KD1JV.......DISCONTINUED MODEL, MANUAL IS ONLINE,

This rig was designed to be entered into the ARRL "home brew challenge". The
results of the design contest won't be known for some time and it will be even
longer before anything is published. We decided this was such a nice rig, it had
to be kitted and made available as soon as possible. There's also the
possibility the ARRL will choose some other design to win, so why take that
chance?

The MMR-40 features both CW and SSB operation, the first rig kit in this
price class to do so. The reasonably small size, low power consumption and
nearly full band coverage of 40 meters makes this rig ideal for back up or
emergency use.

Specifications:

  • Receiver sensitivity: 0.2 uV MSD typical
  • Audio output: 500 mw
  • Receiver current: 30 ma, no signal
  • Transmitter power out: 6 watts CW/pep typical at 13.8V supply
  • Transmitter spurs: -50 dBc or better
  • Transmitter current: 900 ma at 6 watts CW output
  • SSB frequency response: 400 Hz to 2400 Hz
  • VFO drift: From cold start, 200 Hz or less during 10 minute warm up.
  • Tuning rate: About 13 kHz per knob revolution
  • Typical tuning range: SSB: 7.280 to 7.150 MHz CW: 7.100 to 6.700 MHz
  • Power supply: 11 to 14 volts, 12.5 to 13.8 recommended.

The kit is complete including case, connectors, controls, commercial quality
plated through, double sided, silkscreened, and soldermasked board. The MMR-40
is 100% through hole parts with NO surface mount parts to worry about..

The cost of the kit is $225.00 C

Supporting Files and Documents

MMR-40 Assembly Manual (rev B.1)

MMR-40 Mechanical Assembly Manual

MMR-40 Errata

MMR-40 Panel Drilling
Template

MMR-40 Speaker Drilling Template

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Mmr4o Cw/ssb  40 Meter Transceiver Kit

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