W4OP Loop Tripod Adapter

W4OP Loop Tripod Adapter now available for purchase in Online Store. This is a perfect compliment to the W4OP Loop and is made from machined aluminum so its light weight yet tough enough to stand up to rugged conditions. The W4OP Loop continues to impress and if you haven’t compared it to other loops, please click HERE.  And did you know, the W4OP is now Water Resistant? It is, so when that unexpected rain shower hits or you are braving the elements on a snowy SOTA run, the W4OP Loop will stand up to the challenge!

W4OP Loop Shown on Tripod

The Three Amigos – MTR5b, MTR3b, and MTR4b

 QRP School provides a nice “First Look” of the Mountain Topper MTR-5B

QRP School offers a very nice overview of the Mountain Topper MTR-3B

I’ve been having a ball with this gem for the past 10 days.  In this video, I tell you about the radio and then show you how to use nearly every feature.  It’s a long video that I made for those who may be interested in this jewel-like little rig… which should be EVERYONE!”

Great Video of MTR-3B

Purchase Now


“Mountain Topper and EnfedZ are Perfect Combo for the Appalachian Trail”


EF-MTR Par EndfedZ Antenna getting rave reviews!!

The new EF-MTR is a 40M/30M/20M tri-band QRP antenna rated up to 25W has been hugely popular. The “MTR” name was selected as we developed this antenna to be the perfect companion to the wildly popular 3-band Mountain Topper QRP transceiver. The EF-MTR’s total length is 65′ of 22g polystealth wire and weighs less than 4 OZ!  It is built with the same high level of workmanship and quality that you have come to expect with all LNR antennas. As our tagline states, “They Just Work!”

Purchase NOW!

Transceivers you will WANT to take out in the field and not leave behind in your shack.

 Click here for more details.




EF-Quad 10/15/20/40

The new EF-QUAD shaping up to be the most popular EndfedZ yet! We have had a LOT of requests for a high wattage multi-band version of our immensely popular 10/20/40 EndFedZ antenna and it is now available for purchase! The EF-QUAD is a 10M, 15M, 20M, 40M and is rated for an amazing 200W!!!

WB4DBO on the EF-QUAD: “It is a fine antenna and will certainly fill the need for many of us who live in restrictive communities and want a single wire antenna that is simple, easy and effective!  Again, congratulations on a great job.” READ FULL REVIEW and Field Test

Purchase EF-QUAD HERE.

Polarity: Depends on mounting configuration
Design Z: 50 Ohms
V.S.W.R. Bandwidth 40M: 300KHz 1.5:1
V.S.W.R. Bandwidth 20M 350KHz 1.5:1
V.S.W.R. Bandwidth 15M 450KHz 1.5:1
V.S.W.R. Bandwidth 10M 500KHz 1.51
Power Handling: 200W SSB/ CW 50W A.M.
Weight: 2 lbs.
Length: 65’
Hardware: Stainless Steel
Connector: Silver/Tefon SO-239
Radiator #18 black polyethylene coated copper-clad Wireman #532

READY FOR ACTION: No Tuning or Ground Radials!
STEALTHY: Great for Restricted Residential Areas!
VERSATILE: Install at home or take it with you!
QUALITY: Best in Class!

The Par EndFedz® are a full length half wave dipoles, but with an important difference. The coax connector is at one end of the dipole, where it is most needed. These antennas can be mounted horizontally, vertically or as a sloper. No ground plane or counterpoise is needed. Portable operation could not be easier. Simply hang the far end from a tree limb–the coax is at the bottom. Hang it up in a hotel window or string it up in the attic. End insulators are supplied making suspension easy. More Details>>