LP-500 Digital Station Monitor


LP-500 Digital Station Monitor
Digital Watt/SWR Meter, Waveform Monitor Scope and Spectrum Analyzer all in one.
Preliminary Info

Development slowed during the summer due to other commitments, a big uptick in orders for other products, etc. We have resumed development now and plan to have the first run ready in the not-too-distant future. We have most of the parts in stock for an initial run of 50 units. Interested parties can be added to a pre-order list by sending an email here.  People on the pre-order list will be contacted  with the option of firming up an order or canceling. The second run will follow the first with at least 100 units.

The LP-500 will only be offered assembled. Initial coupler offerings will be 3KW HF/6m, 5KW HF/6m, 5KW HF & 10KW HF couplers. A 1500W VHF coupler is in the works. 

Pricing has been set at $795USD for the meter and one coupler. Additional couplers (up to 4 total) can be added for $150USD each.

The following pictures do not necessarily show the highest resolution display options for each mode.

Important notice for LP-100(A) owners… LP-500 WILL NOT replace the LP-100A. The LP-100A will continue to be our main product with some important features not provided in the LP-500. The LP-100A couplers are similar but not identical to the LP-500 couplers, and are therefore not interchangeable. The LP-500 VHF / UHF couplers will not work with the LP-100A, but a version of the VHF coupler is being developed for the LP-100A.


* Bright, High Resolution Color TFT Display* 16-bit DSP Processor
* USB Interface
  (not needed for normal operation)

* Flash Upgradeable

* Fast Screen Refresh

* 12VDC Operation

* Interface to Rig is Through Remotable RF Couplers
Which Connect to the Rig / Amp Output

* Provides Everything You Need to Know About
the Quality of Your Transmissions
* Size: 7.25″ W x 4.0″ H x 6.0″ D

Watt / SWR Meter
* Couplers for HF, VHF, UHF,   Power up to  10KW
* Frequency counter for band indexed calibration

* Up to 4 Channels  with Simultaneous Sampling & Auto-Ranging

* NIST Traceable Calibration

* Simultaneous Bargraphs for Peak Pwr, Average Pwr & SWR

* SWR & Power  Alarms w/ Adjustable Set Points

* Readouts for Ref Power, Compression Ratio & dBm

Waveform Monitor Scope
* Adjustable Sweep & Trigger

* Multiple Trace Display Options

* Presets for SSB, CW, PSK &  User Selections

* Auto-Ranging

* Trapezoid Linearity Display
  (Requires two couplers)

Spectrum Analyzer
* Displays Modulation Spectrum of Transmitted Signal

* Adjustable Span & Averaging

* Two Tone Generator

* IMD Readout for Two Tone SSB,  PSK

Multi Display
* Displays Up To 4 Couplers Simultaneously

* Bargraphs for Peak Pwr, Average Pwr & SWR

* Numerical Readouts for the Above Parameters

* Displays Gain Between Any 2 Channels

Waveform Mode – PSK Signal

Rear Panel

Power/SWR Display

Waveform Monitor Mode – CW Signal
Spectrum Display

Multi Display



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