MTR3B_LCD Shown Below

New Mountain Topper redefines Portable CW with a gorgeous LCD screen in a small lightweight enclosure! 

The Mountain Topper Rigs are designed to be a very small, light weight, very battery efficient, multi-band CW rig suitable for field operation. The small size and low weight make this rig ideal for SOTA operators and backpackers.


  • 3 band operation – 40/30/20
  • Wide power supply operation – 6V to 12V
  • Low operating current – 20 ma @ 6V, 15 ma @ 12V
  • 5+ Watts out at 12V supply, 2.5-3W at 9V supply
  • Easy to read 2 line LCD display with back lighting
  • Push button tuning and audio limiting eliminates protruding knobs
  • Iambic B mode keyer, 9 to 31 WPM range in 1 WPM steps
  • Three, 63 character message memories with beacon mode
  • Optional decoding and display of Morse being sent via paddle. Know you are sending good code
  • Built in 24 hour real time clock
  • Battery back up restores last used settings on power up

Now Available for Purchase!
Click HERE for more details



MTR3b_LCD (7/28/20): We are nearing the end of the current production run of the massively popular MTR3b_LCD. There are still units available for purchase, but once complete, we expect a delay of several months before they will be available again. The COVID-19 situation has taken a toll on our supply lines as well as international shipments. Due to this, we will be limiting the remainder of MTR3b_LCD’s to US Domestic customers only. It is our plan to offer the MTR3b_LCD again and hopefully in conjunction with the new MTR4b (see below).

MTR4b (7/28/20): LNR is still working with Steve Weber on a reintroduction of the MTR4b. We are contemplating offering some new features but will announce those once we have confirmation. The COVID-19 situation has lengthened the timeline, but stay tuned to our website or the Facebook Mountain Topper group for information when we make it available.

MTR-SSB development:  (12/6/19): We regret to inform that the new MTR-SSB transceiver will not be released as planned. In most simplest terms, there are some technical limitations preventing operations when extending it to the 40M/20M bands. The 80M/60M bands for the emergency communications interest is not affected. The minimalistic nature and outstanding reliability in all of the Steve Weber KD1JV Mountain Topper designs are well documented and will not be compromised which I’m sure everyone appreciates. So while we are all disappointed, we are gauging interest in the 80M/60M version in 2020 and are considering special single band versions as well.

EndFedZ Antennas (Acquisition): LNR is pleased to announce that the PAR EndfedZ line of wire antennas was acquired by Vibroplex in 2019. Customers can purchase these antennas directly at their website at Vibroplex.com. This move is a positive for both companies and we are excited about the future going forward. 

W4OP Loop: Unfortunately, as part of our streamlining in 2019, we halted production of the W4OP Loop antennas to devote our entire attention on the very popular Mountain Topper transceiver line. The W4OP (remote and manual controlled versions) are phenomenal antennas and would be a great product line for another company or interested entrepreneur to pick up. If interested, contact LNR.

New Mountain Topper Facebook Group PageMountain Topper Facebook Group Page – Cool customer driven FB page to share stories, pics and general MTR discussion.


Running mtr3b lcd 2.5 watts 15,000+ kilometer contacts – Bushcraft Ham Radio


MTR3b LCD with a view!

I thought you might enjoy the attached two photos of an activation I did today with the new  3BLCD MTR. This was near  Makapu’u lighthouse on Oahu today.  Antenna  was the Endfed  10/20/40. 


Love the Clock feature

“The new MTR3b with the LCD display is a major upgrade for the Mountain Topper. The display provides frequency readout, clock with battery backup, keyer speed and battery voltage while reducing the very low current draw from 35 mA to only 15 mA. The new LCD frequency readout makes the new Mountain Topper much easier to tune. The Mountain Topper is a great “purist” radio for SOTA and other outdoor activities.” -W3DX


Receive is Amazing!

This little is amazing. It’s so fun to use. The receive is amazing.


Perfect Sota Rig

I’ve owned and operated alot of the MTR-series from the original Weber kits to this latest one from LNR …I got to say this one with it’s large LCD display makes it look and feel like a big bench rig yet small enough to fit in your pocket! Perfect SOTA CW rig! 


Easy to Read

I received my MTR-3B today and love it. I was afraid that the display might
as difficult to read as the one on my MTR-5B but it is not the case, it is
very bright and easy to read. Having the 2 lines display is a huge improvement
over the single digit on my old MTR-3B.

Yvon NU6I


My MTR3B arrived today. What an amazing little radio. This will definitely go in my backpack next summer. With antenna, batteries, key and earphones, I believe I can have an HF station, in a padded, waterproof case, at under 3#. This rig redefines HF “portable”.


Mountain Topper TShirts, Hats and Other Accessories Now Available!

The Three Amigos - MTR5b, MTR3b, and MTR4b




"Mountain Topper Transceivers are Perfect for the Appalachian Trail"