Overview
The EMC Shop is an ISO 17025 accredited calibration company with the Praxsym PAMS Portable Attenuation Measurement System in stock available for sale or rental. Repair and refurbishment services available as well. Contact us now for application support.
Features:
- Measures Path Loss, Signal Strength Shielding Effectiveness
- 864-936 MHz
- Path Loss Accuracy: +/- 1 Db Typ.
- Receiver Range: 0 To -120 Dbm
- Transmitter Power: -30 To +30 Dbm
- Synthesized: 1 Mhz And 10 Khz Step Size
- AC Power Or Battery Operation
PAMS is a user-friendly, transmitter and receiver system that measures shielding effectiveness in RF shielded enclosures. Lightweight and compact, each PAMS unit measures approximately 12" x 5" x 5" and weighs 5.5 lbs.,
making PAMS ideally suited to field measurement tasks. Rugged construction insures instrument survivability in a field test environment.
PAMS incorporates a self-calibrating architecture that provides for ease of use. It requires only minimal operator instruction for error-free operation. Its backlit LCD output displays shielding effectiveness, battery status, and other
operating parameters.
PAMS provides an optimum solution for measuring the shielding effectiveness of RF enclosures.
PAMS can also be used with the RF Antenna Switch and up to 12 Ground Plane Antennas (available separately). A monitoring network can be installed around a shielded room. The antennas are placed around the outside of
the room, and using the PAMS Receiver attached to the RF Switch, the operator is able to monitor the shield from various places around the room.
When operating in the shielding level mode, PAMS determines shielding integrity to levels as high as 120 dB at 900 MHz.
The PAMS receiver and transmitter are synthesized, with a minimum tuning step size of 100 kHz. Both units are battery powered, and can be operated in an AC mode when connected to the external battery charger. Normal
battery operation time is 5 hours for the receiver, and 2 hours for the transmitter. A complete charge cycle is completed in approximately 2 hours.
The receiver provides accurate level detection for signals in the range of –120 dBm to 0 dBm. Typical accuracy is +/-1.0 dB. An internal limiter provides protection to the receiver in the unlikely event that the receiver and transmitter are connected together.
The transmitter provides a maximum output power of +30 dBm (1 watt). Output power can be adjusted in 1, 2, or 5 dB steps down to –30 dBm. Internal ALC circuitry maintains output level accuracy. The output of the transmitter is fully protected against damage.
The PAMS transmitter features a built-in 750-1000MHz comb generator for measuring small enclosures. The -10dBm pickets can be measured with a spectrum analyzer.
The PAMS system includes transmitter, receiver, antenna switch box, batteries, power packs, manual and a rugged
transit case.
Includes:
- PAMS Receiver
- PAMS Transmitter
- 3 amp Battery Charger / AC Power Pack (2 each)
- Antennas (2 each)
- 12 Position Antenna Switch
- 32 ohm headphones
- Operator’s Manual
- Airtight & Watertight Heavy Duty Transit Case
| Specifications - PAMS Receiver | |
|---|---|
| Operating Frequency | 864-936 MHz |
| Tuning Step Size | 1 MHz and 100 kHz |
| Operating Modes | Signal Strength, Shield Level, Spectrum Monitor, Monitor (TS-31) |
| IF Bandwidth | 20 kHz nominal |
| RF Input Connector | BNC female |
| RF Input Impedance | 50 ohms nominal |
| RF Input Preselection | 80 MHz 1 dB bandwidth |
| Signal Level Relative Accuracy | +/- 1.0 dB (-120 dBm to 0 dBm) |
| Absolute Level Accuracy | +/- 2.0 dB (-120 dBm to 0 dBm) |
| Maximum Safe Input Level | +30 dBm (1 watt) minimum |
| Battery Operation | 5 hours minimum at full charge |
| Batteries | Nickel Cadmium |
| AC/Charger Operation | 95-265VAC, 48-65 Hz |
| Charge Time | 90 minutes typical, "REFLEX" charge control |
| Controls | On/Off/Volume, Frequency Tune / F.DIGIT (frequency tune), THOLD (sets threshold level for go/no-go testing), LIGHT (backlights LCD display), CAL (used to provide path loss or shielding reference level normalization), MODE (selects threshold or monitor mode) |
| LED Indicators | Battery Overtemp, Battery Charge, Battery Fault |
| LCD Displayed Functions | Frequency, Battery Level, Mode (Path Loss, Shielding Level), Threshold Level Set, CAL Status, LOCK Status, Frequency Adjust Status (Coarse or Fine) |
| Weight | 5.5 lbs nominal |
| Case Size | 11.7" H x 5.1" D x 4.9" W |
| Standard Accessories | 32 ohm headphones, battery charger/power pack, manual, 1/4 wave on top of 1/2 wave vertical monopole antenna |
| Specifications - PAMS Transmitter | |
|---|---|
| Operating Frequency | 864-936 MHz |
| Tuning Step Size | 1 MHz and 100 kHz |
| Maximum Output Power | +30 dBm minimum |
| Output Power Control | 10 dB steps from -30 to +30 dBm |
| Output Level Accuracy | +/- 1.0 dB maximum |
| Harmonics | -60 dBc maximum |
| Output Impedance | 50 ohms nominal |
| Load VSWR | Safe operation into infinite VSWR (isolator protected) |
| RF Output Connector | BNC female |
| Battery Operation | 2 hours minimum at full charge |
| Batteries | Nickel Cadmium |
| AC/Charger Operation | 95-265VAC, 48-65 Hz |
| Charge Time | 90 minutes typical, "REFLEX" charge control |
| Controls | On/Off, Frequency Tune, Coarse Fine (frequency tune), LIGHT (backlights LCD display), LOCK (locks out all controls), ATTEN (controls output power in 10 dB steps), MODE (selects CW or broadband mode) |
| LED Indicators | Battery Overtemp, Battery Charge, Battery Fault |
| LCD Displayed Functions | Frequency, Battery Level, Output Level, LOCK Status, Freq Adjust Status (Coarse or Fine), Broadband / CW Mode |
| Weight | 5.5 pounds nominal |
| Case Size | 11.7" H x 5.1" D x 4.9" W |
| Standard Accessories | Battery charger/AC power pack, manual, 1/4 wave on top of 1/2 wave vertical monopole antenna |
