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Mountain Topper MTR4b v2.3 - For Sale

 

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Hey all -

I have an LNR MTR4b v2.3 in excellent condition for sale (see attached images). ?It operates flawlessly with very few hours on it.? This unit is from the last batch that was sold last year so has the most up-to-date hardware revisions and firmware.? These are no longer in production as of last year, and there is no telling if LnR will release these again.? This transceiver covers 80m/40m/30m/20m, weighs less than 8 ounces, and has a very quiet noise floor.? This is one of the more popular and well-respected QRP CW radios on the market.? From the ¡°official¡± product listing:
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  • Side tone Frequency Adjustment (New in version 2.3)
  • Side tone Volume Adjustment (New in version 2.3)
  • Improved access to coin battery (New in version 2.3)
  • Red Gloss enclosure (New in version 2.3)
  • Switch selected 80/40/30/20 meter bands (no band modules to lose or change out)
  • Heavy Duty Slide Switches
  • Machined Aluminum Enclosure
  • Four bands ¨C 80M, 40M, 30M and 20M
  • Very low receiver noise floor
  • Low current for maximum battery life
  • Wide operating voltage range ¨C 5.5V to 13V
  • Full 5W ¡°QRP¡± gallon with 12.0 Volt supply
  • 2 line, back lighted LCD display
  • SWR ¨C RF Power display
  • Built in Real Time Clock
  • Internal Iambic B mode keyer, 5 to 31 WPM in 1 WMP increments.
  • Three Morse message memories with beacon mode
Some technical specifications:
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  • Receiver sensitivity : ~ 0.5 uV
  • Receiver audio bandwidth: ~ 400 Hz centered at 600 Hz.
  • Receiver current: ~ 27 ma
  • Transmit output power: 5 watts typical at 12.0 Volt input
  • Transmit current: 750 ma Max with 5 watt output
  • Transmit spurious outputs: -50 dBc or better
  • Supply voltage 5.5 volts minimum, 13 volts maximum. 6 to 12 recommended.
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The manual can be downloaded from and the product page with other details can be viewed at
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Included with this sale are the transceiver with a BNC dust cover.? You will need to provide a 5.5mm with 2.5mm pin power cable; remember that this radio is rated for between 5.5V and 13V, so powering it from a Talentcell or a PD 12V cable (or a 9V battery) would work.
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Sold as-is with no returns or refunds.?

$350? -- most common digital payment platforms are acceptable, as well as cash.? I can meet you within a reasonable distance of Simi Valley!

73

-- Matt N3AR

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