Daiwa CN-901HP
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| Frequency | 1.8-200 MHz |
| Bands | HF (1.8-30 MHz), 6m, 2m, 1.8-200 MHz measurement |
| Power | An SWR/power meter, not a transmitter. It reads forward power, reflected power and SWR on three ranges (20, 200 and 2000 watts), with a 2000-watt maximum, and switches between average and PEP (peak). |
| Modes | SWR/power measurement (forward, reflected, VSWR simultaneously), cross-needle |
| Weight | 1 kg (2.2 lb) - About 2.2 lb (roughly 1 kg). |
| rf in | SO-239 (UHF female), transmitter side |
| antenna | SO-239 (UHF female), antenna side |
| dc in | 13.8 V DC input that powers only the meter lamp/LED illumination (the meter measures without external power) |
| power req | No external power is needed for measurement; a 13.8 V DC input runs the lamp/LED illumination only. |
A well-built Japanese cross-needle meter that shows forward power, reflected power and SWR together at a glance, with a wide 1.8-200 MHz range covering HF, 6 m and 2 m and three power scales to a full 2000 watts, so it suits anything from a barefoot rig to a legal-limit amplifier. It switches between average and peak (PEP) reading, has a large illuminated meter, and measures without needing power (the 13.8 V input is just for the lamp).
It stops at 200 MHz, so it does not cover 70 cm, and as a single in-line meter it shows power and SWR but not impedance or R and X like an analyzer. It is a fairly large, heavy bench instrument rather than a pocket tool, uses SO-239 connectors, and costs several times a basic SWR bridge.
The Daiwa CN-901HP is a high-quality cross-needle SWR and power meter for HF through 2 m, reading forward power, reflected power and SWR together on three ranges up to 2000 watts with average/PEP switching. It suits a station that runs an amplifier and wants an at-a-glance bench meter; QRP-only stations can choose a lighter meter, and operators who work 70 cm need a meter that reaches UHF.
The Daiwa CN-901HP is a cross-needle SWR and power meter, part of Daiwa's well-regarded Professional Series of bench instruments. A cross-needle meter has two needles, one for forward power and one for reflected power, and where they cross the scale reads SWR, so you see all three values at once without switching, which makes tuning quick. It covers a wide 1.8 to 200 MHz, taking in the HF bands, 6 meters and 2 meters.
The "HP" stands for high power: it has three power ranges of 20, 200 and 2000 watts, so it reads accurately from a QRP rig up to a full legal-limit amplifier, and an average/PEP switch gives correct readings on SSB and other peaky modes. The meter is large, illuminated and housed in a solid metal case, and like most quality cross-needle meters it measures with no external power; the 13.8 volt input only lights the lamp. The connectors are SO-239 in and out, it is about 159 by 109 by 122 millimeters and roughly 2.2 pounds.
It suits a station that runs an amplifier and wants a dependable, at-a-glance bench meter across HF through 2 meters. The wide-range Comet CMX-200 is its closest cross-needle competitor, those who work 70 centimeters need a meter that reaches UHF like the Diamond SX-400, and anyone who needs impedance, R and X or a Smith chart wants an antenna analyzer rather than an in-line meter.