The Daiwa CN-101L cross-needle meter displays both forward and reflected power over a frequency range of 1.8-150 MHz in ranges of 15/150/1500 watts forward. Buy the Daiwa CN-101 L Meter 1.8-150Mhz from Radioworld.co.uk 96, for all your radio needs. In stock fast delivery call now.

Daiwa CN-501H Cross-Needle SWR/Power Meter that covers 1.8 to 150 MHz. Free Shipping. These meters are the replacement for CN-101L due to changes to the toggle switches on the front panel have been replaced with push-button switches. Sistem informasi akademik unkhair. The cross-needle movement allows the simultaneous monitoring of forward power, reflected power, and SWR, all without the need of an extra calibration procedure.

The meter is switchable for 15, 150 or 1500 watt full scale readings, and has a built-in lamp which can be powered from an external 13.8 VDC source. Supplied with a DC power cord, which is only required for powering the built-in lamp. Specifications: Frequency range: 1.8 - 150 MHz Power range: (forward) 15/150/1500 watts Power rating: - 1500 watts (1.8 - 60 MHz) - 1000 watts (60 - 150 MHz) Accuracy: +-10% full scale SWR detection sensitivity: 4 watts, minimum Impedance: 50 ohms Connectors: - input: SO-239 - output: SO-239 Size: 3'H x 5'W x 4'D.

I don't have a schematic, but I believe if you open up the meter and expose the coupler completely, it's so simple you could draw your own schematic in a few minutes. There's nothing in there but a standard Monimatch-type bridge with toroidal sampling transformers, sensitive diode detectors and resistive terminations on the fwd/ref sense lines. The CN801L 'peak' reading position is meaningless, as there is no active circuitry; they're just switching in a large capacitor after the peak detector to make the time constant longer. I doubt there's more than a dozen parts in this coupler, and only a 2-sided PCB, so nothing's hidden from view.