Specifications

SMΩRF (Meter) CHARACTERISTIC


Main Display


Point of measurement

Sensor (TX) and antenna (ANT) for all measurements

Power range

0.001W to 19,999W, -9.99dBm(dBW) to 72.99dBm(42.99dBW) depends on sensor,
-80dBm to +23dBm in 4IN mode

Power types

Peak, instant, average, total peak and total average for forward, delivered and reflected power. Adjustable peak hold time, averaging time and update rate.

SWR range

1.00 – 99.9

Return Loss

0 – 99.99dB

Phase

-180.0° to +180.0°

Impedance

Real and imaginary part from +/- 0.01 – 9999Ω, phase from +/- 0.01° to 89.9°

Other measurements

|Z|, R, X, |Y|, G, B, Γ, | Γ|, Φ, IMD, |U| and | I| (peak, p-p, rms), L, C, Loss, Gain*1

Simultaneous measurements

15

Display

256x64 graphic monochrome OLED, 3.11” diagonal size, 16 intensity levels

Bar Graphs


Type

2x 51 segments, 3 user assignable colors (red, green yellow), Dot or Bar mode.

Point of measurement

Sensor point and antenna point for all measurements

Power ranges

5 range multipliers (x0.1, x1, x10, x100/1000) 
3 linear scales (10, 20, 50) 
total 14 full scale ranges 1W – 20,000W.

Power ranges mode

AUTO, manual, 100% (level adjustable on per band, per sensor basis).

Power types

Peak, average for forward, delivered and reflected power. Separate (one segment) peak hold. Adjustable peak attack and decay, hold and averaging time.

SWR

1.00 to >15 in 4 semi-linear scales

Impedance

0 to +100Ω for R and |Z|, -100 to 100Ω/° for X and Φ

Simultaneous measurements

4

Tone Generator


Type

DDS based, 32bit precision, 214 quarter sine wave look-up table

Output level

1μV – 130mVp-p, +/-10%, step 1/100/1000μV

Frequency

150Hz – 9999Hz, step 1Hz, DDS based

Signal type

Sine, Dual Tone (individually adjustable frequencies and levels), White/Pink noise

Sweeps

Amplitude, frequency in linear or logarithmic scale

Mode

Continuous, single shot 10 – 9900 ms

Frequency accuracy

100ppm

Output Flatness

+/- 0.15dB

THD

0.0028%

D/A converter output rate

24bit, 160ksps

RF Characteristics


RF ports IN1, IN2, IN3, IN4

4x SMA female connector

Operating frequency range

1.8MHz to 500MHz

Absolute maximum power

+26dBm

Amplitude dynamic range

> 90dB

Phase dynamic range

> 70dB

Counter dynamic range

> 50dB

Frequency segmentation

10kHz at 1.8-2.5MHz and 49-400MHz, 1kHz at 2.5-49MHz,
100kHz above 400MHz

Ports isolation*2

> 50dB up to 80MHz, 46dB at 145MHz, 39dB at 435MHz, (dual mode)
> 85dB non muxed (single sensor mode)

Noise floor

-70dBm typically

Amplitude calibration range

-60dBm to +23dBm, 34 selected frequencies, step 0.5dB

Absolute Amplitude accuracy
at sensor ports*3

-20dBm to +23dBm,
<0.04dB (~1%) up to 150MHz
<0.06dB (~1.5%) up to 250MHz,
<0.09dB (~2.3%) up to 500MHz

-60dBm to -20dBm,
<0.08dB (~2%) up to 150MHz
<0.12dB (~3%) up to 250MHz
<0.16dB (~4%) up to 500MHz

Phase calibration range

-180° to +180°, 34 selected frequencies, step 0.9°

Absolute Phase accuracy
at sensor ports

-30dBm to +23dBm
<+/-3.5° up to 60MHz
<+/-5.5° up to 150MHz
<+/-12.5° up to 435MHz

-50dBm to -30dBm
<+/-7.5° up to 60MHz
<+/-12.5° up to 150MHz
<+/-15° up to 435MHz

Phase range

-179.9° to +180° up to 30MHz
-179.9° to +170° up to 60MHz
-179.9° to +160° up to 150MHz
-179.9° to +120° up to 500MHz

Relative Power accuracy*4

CHF-3 from 1.8MHz - 54MHz
0.1 – 1W <3%
1W – 600W <2%
600 – 3000W <2.5%

CVHF-2 
0.3 – 3W <3%
3W – 2000W <2% at 70MHz

0.2 – 2W 3%
2W – 2000W <2% at 145MHz

0.1 – 1W <3%
1W – 400W <2%
400 – 2000W <2.5% at 435MHz

Ports


DC Power

12-15V DC, 1300mA max. depends on brightness setting

iLINK

2x miniDIN6 for proprietary connection to iLINK enabled microHAM devices

LAN

RJ45, auto MDI/MDIX, 100BaseTX, IEEE 802.3 Ethernet port

AUX

DIN6, Do not connect, reserved for future updates

PTT/INHIBIT OUT1, OUT2

2x RCA, open collector output, max. 24VDC, 100mA

PTT/IHIBIT IN1, IN2

2x RCA, optically coupled input, internal 1500ohm pullup to 5V

SERIAL

Native RS232, 1200-115200Bd

Other Parameters


A/D conversion  

Synchronous parallel 16bit, 125ksps, 18.5bit effective resolution

Measurements update rate

2000/s in single sensor modes, 100/s in dual sensor mode,
50/s in 4IN mode

Dimensions

W: 250mm, D: 210mm, H: 110mm

Weight

2.4kg


 
*1 Requires two sensors *2 Muxed inputs IN1-IN3, IN2-IN4
*3 Absolute accuracy to NIST traceable HP438A SN#2517U00290, HP8482A SN#2652A22248, HP8482A SN#1925A05693 for levels -20dBm to +23dBm, Keysight U2004A SN# MY53290005 for levels -60dBm to -20dBm
*4 RSS (Root Sum of Squares) uncertainty for complete system including sensor mismatch, sensor calibration, sensor cables, SMΩRF calibration and reference power meter uncertainties.

 

SENSORS

 
 

CHF-3


Operating frequency range

1.8MHz to 54MHz, U/I type sensor

Maximal Power

3000W ICAS, 1500W CCS

RF ports connectors

Power side 2x SO-239 (N optional), meter side 2x SMA female

Input Return Loss

> 30dB

Insertion Loss

0.02dB – 0.04dB from 1.8MHz up to 30MHz, <0.08dB at 50MHz

Directivity

27dB at 1.8MHz, 33dB at 3.5MHz, >40dB from 7MHz up to 30MHz, >30dB at 50MHz

Coupling

~50dB, 50Ω loaded

Power and phase accuracy

< +/- 0.04dB (~1%), < 2° (~0.6%)

Operating temperature range

-20 to +60° C (sensor)

Dimensions

W: 88mm, D: 150mm, H: 47/79mm (body / incl. connectors)

Weight

460g


CVHF-2


Operating frequency range

70MHz to 500MHz, directional coupler

Characteristic impedance

50Ω

Maximal Power

2000W ICAS, 1000W CCS

RF ports connectors

Power side 2x N female, meter side 2x SMA female

Input Return Loss

>40dB up to 145MHz, >35dB at 435MHz

Insertion Loss

<0.02dB up to 250MHz, <0.03dB at 500MHz

Directivity

>35dB up to 250MHz, >30dB up to 435MHz

Coupling

~60dB at 70MHz, ~50dB at 250MHz, ~45dB at 500MHz, 50Ω loaded

Power and phase accuracy

< +/- 0.04dB (~1%), < 2° (~0.6%)

Operating temperature range

-20 to +60° C (sensor)

Dimensions

W: 88/120mm (body / incl. connectors), D: 150mm, H: 47mm

Weight

350g

 

CVHF-6


Operating frequency range

70MHz to 500MHz, directional coupler

Characteristic impedance

50Ω

Maximal Power

6000W ICAS, 4000W CCS

RF ports connectors

Power side 2x 7/16DIN female, meter side 2x SMA female

Input Return Loss

>40dB up to 250MHz, >30dB at 435MHz

Insertion Loss

<0.01dB up to 250MHz, <0.02dB at 500MHz

Directivity

>45dB up to 250MHz, >35dB at 435MHz

Coupling

~63dB at 70MHz, ~53dB at 250MHz, ~48dB at 500MHz, 50Ω loaded

Power and phase accuracy

< +/- 0.04dB (~1%), < 2° (~0.6%)

Operating temperature range

-20 to +60° C (sensor)

Dimensions

W: 108/154mm (body / incl. connectors), D: 150mm, H: 59mm

Weight

550g


All sensor parameters are typical