MTR3B_LCD Now Available

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

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"

EndFedZ Antenna Acquisition

LNR is pleased to announce that the PAR EndfedZ line of wire antennas has been acquired by Vibroplex. Beginning Thursday, September 12th, 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. Specifically at LNR, we are also halting production of the W4OP Loop antennas to devote our entire attention on the very popular Mountain Topper transceiver line.

Speaking of the Mountain Toppers, we have some exciting news related to the Steve Weber (KD1JV) designed jewels. As you know, these lightweight and powerful transceivers have been extremely popular and often hard to get because they are in such high demand. There will be more detailed information released soon, however, this is a preview of what is coming:

NEW Mountain Topper Radio! - Tentative Name: MTR-SSB

MTR-SSB release update from LNR (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.

2 bands – either 80/60 (ECM market) or 40/20
Sound card input jack for digital modes. (will need a Y adaptor as input/output is on same jack)
CW mode
10W p-p output typically
12-13.8V supply
60 ma Rx current
LCD display
Pricing – still TBD
Available – TBD but hopefully before end of 2019, in time for Christmas

MTR3b_LCD Re-release (Same design and look)

Pricing – Special re-release pricing of $299!
Available now!

MTR3b_LCD Partial Kit – NEW! (Considering release by Qtr1 2020)

Exactly the same MTR3b_LCD as above but offered as a partial kit.
PCB will be shipped fully populated with SMT components and crystals installed.
Board will be calibrated and tested prior to shipment.
Customer will assemble and mount the through hole parts.
Will include enclosure, power cable, jacks to mimic fully assembled product.
Pricing still TBD but will certainly be well under price of fully assembled product.

MTR5b Limited Re-release

Only expected change on the MTR5b will be a new enclosure
Still working out details on artwork, but likely will be similar color as the MTR4b but with new top plate. This will be a limited run (less than 100 units) of the fully assembled MTR5b. Future runs may include partial kit option – undecided.
Pricing of fully assembled units - same
Available Now


No design changes currently
Less than 100 are available in existing production run. Future runs may include partial kit option – undecided.