Mountain Topper Transceiver Manuals:
- Mountain Topper MTR3B V4 Currahee (Updated 7/17/25)
- Includes notes/instructions for various Firmware updates
- Moutain Topper MTR3B V4 Currahee QUICK REFERENCE CARD (7/17/25)
- Mountain Topper MTR4B V2 (Updated 1/12/21)
- MTR4bV2 Supplement – Side Tone Adjustment – To adjust the side tone, use a NON-CONDUCTIVE or plastic screwdriver and adjust via the small access hole on the bottom of the enclosure. Adjust clockwise or counter clockwise to your personal preference. It is important to not use a metal or conductive screwdriver because you could miss the tuning adjustment and short out the PCB.
- MTR3B_LCD 3-Band Mountain Topper (Updated 9/29/18)
- MTR3B 3-Band Mountain Topper (Updated 2/11/16)
- MTR4B 4-Band Mountain Topper (Updated 3/5/17)
- MTR5B 5-Band Mountain Topper (Updated 3/5/17)
- MTR5B Original Detail Manual (Includes Schematics)
ACCESSORIES
All manuals are in Adobe PDF Format. Please download Adobe Acrobat Reader if you have trouble viewing.
PAR EndFedZ Antennas:
These great antennas are STILL in production however LNR Precision sold this product line to Vibroplex, Inc. in 2019. You can order from Vibroplex’s website as well as find product manuals and support.
Retired Products
W4OP Loop Antenna (Out of Production):
- W4op Loop Manual Tuning Version (Updated 12/10/17)
- W4OP REMOTE Loop (Updated 9/19/17)
- 6M Option for W4OP Loop (Updated 5/17/17)
Prior Transceivers
- LNR FX-4a (Updated 1/26/15)
- LNR FX-2 (FX-2 with updated firmware)
- Introductory FX-2 (Units sold prior to June 15, 2012)
- LNR LD-11 (Updated 1/3/18)
- LNR LD-5 (Updated 7/13/15)