Mountain Topper Radio review by G0POT

A review of the LNR Precision version of the MTR, Mountain Topper Radio a three band, CW only, QRP trail friendly transceiver.

Mountain Topper Tri-Bander

Developed by Steve Weber KD1JV Designs

FULLY ASSEMBLED – Manufactured by LNR Precision, Inc.

A very small, very efficient three band QRP CW rig.

Specifications:
Three bands, 40M, 30M, 20M

Receiver:
MDS: ~0.2 uV
Small signal band width ~ 500 Hz
Audio output limited to ~ 1200 mv p-p
Headphone output, 16 ohms min recommended.

Transmitter:
2.5 watts @ 9 volt supply typical
Spurs -50 dBc or better

Size:
3.8” x 2.7” x 1” (LWH)

Weight:
4.4 ounces.

Power requirements:
6 volts minimum, 12 volts maximum.
Power jack: 1.7 mm center hole, 4 mm diameter, 10 mm (or longer) length.

Receive current:
~ 35 ma, no signal.

Transmit current:
~ 400 ma @ 9V, 20M
~ 550 ma @12V, 20M
(transmit current is slightly less on 40 and 30 meters)

June 01, 2018 in: Review No comments

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