
Lightweight Phase-Stable Coaxial Cables
Microwave coaxial cables using silver-plated bimetallic alloy in the centre conductor and mechanical protection layer, for weight-sensitive airborne and space equipment routing.
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CONMOLY / ENGINEERING & CONNECTIVITY
50-ohm microwave cables for phase-sensitive equipment, antenna feeds and test interconnects. Select the diameter and frequency range against the loss budget and installation path.

Microwave RF & Coaxial
Part of our coaxial cable range · View series overview
CM-COAX-PS-F
Flexible Phase-Stable Coaxial Cables
Available for project supply. Select a model below and confirm the order specification.
Catalogue data for available cable configurations. Final tolerances and acceptance requirements are agreed for the selected model.
Typical attenuation at +25 °C and sea level. A dash means no value is listed. Phase stability and assembly performance are agreed for the selected length, connectors, bend and temperature conditions.
Scroll the table horizontally to view all configuration conditions.
| Parameter | Catalogue value | Configuration / condition |
|---|---|---|
| Impedance | 50 Ω | All listed models |
| Operating temperature | −55 to +125 °C | Finished cable |
| Cutoff frequency | 18 / 40 GHz | See individual model; not an assembly rating |
Cable Product Manual · A1 · PDF pages 4, 5
MODEL SELECTION
Scroll each table to compare all columns. Select a CM code to enquire about that model. A dash means no value is listed.
| Code | Centre conductor (mm) | Outer conductor (mm) | Overall diameter (mm) | Min. bend radius (mm) | Mass (g/m) | Capacitance (pF/m) | Cutoff frequency (GHz) |
|---|---|---|---|---|---|---|---|
| CM-COAX-PS-F-OD1P46 ↗ | 0.32 | 1.25 | 1.46 | 6.4 | 7 | 88 | 40 |
| CM-COAX-PS-F-OD2P20 ↗ | 0.51 | 1.98 | 2.2 | 12.7 | 14 | 85 | 40 |
| CM-COAX-PS-F-OD3P60 ↗ | 0.91 | 3.05 | 3.6 | 25.4 | 32 | 80 | 40 |
| CM-COAX-PS-F-OD4P82 ↗ | 1.37 | 4.35 | 4.82 | 25.4 | 53 | 80 | 18 |
| CM-COAX-PS-F-OD5P50 ↗ | 1.7 | 5.1 | 5.5 | 25.4 | 71 | 78 | 18 |
| CM-COAX-PS-F-OD7P36 ↗ | 2.15 | 6.5 | 7.36 | 38.1 | 115 | 78 | 18 |
| CM-COAX-PS-F-OD8P10 ↗ | 2.4 | 7.1 | 8.1 | 38.1 | 145 | 78 | 18 |
| Frequency (GHz) | CM-COAX-PS-F-OD1P46 | CM-COAX-PS-F-OD2P20 | CM-COAX-PS-F-OD3P60 | CM-COAX-PS-F-OD4P82 | CM-COAX-PS-F-OD5P50 | CM-COAX-PS-F-OD7P36 | CM-COAX-PS-F-OD8P10 |
|---|---|---|---|---|---|---|---|
| 2 | 1.59 | 0.9 | 0.52 | 0.34 | 0.27 | 0.21 | 0.21 |
| 4 | 2.27 | 1.25 | 0.75 | 0.49 | 0.4 | 0.31 | 0.3 |
| 6 | 2.82 | 1.55 | 0.93 | 0.6 | 0.5 | 0.38 | 0.36 |
| 8 | 3.31 | 1.8 | 1.05 | 0.7 | 0.6 | 0.44 | 0.42 |
| 10 | 3.75 | 2 | 1.15 | 0.78 | 0.67 | 0.5 | 0.48 |
| 12 | 4.17 | 2.25 | 1.28 | 0.86 | 0.72 | 0.55 | 0.53 |
| 14 | 4.53 | 2.4 | 1.4 | 0.93 | 0.81 | 0.61 | 0.57 |
| 18 | 5.15 | 2.7 | 1.55 | 1.06 | 0.9 | 0.68 | 0.65 |
| 26.5 | 6.35 | 3.3 | 1.95 | — | — | — | — |
| 40 | 7.9 | 4 | 2.4 | — | — | — | — |
Cable Product Manual · A1 · PDF pages 4, 5
| Flexible constructions | CM-COAX-PS-F-OD1P46 · CM-COAX-PS-F-OD2P20 · CM-COAX-PS-F-OD3P60 · CM-COAX-PS-F-OD4P82 · CM-COAX-PS-F-OD5P50 · CM-COAX-PS-F-OD7P36 · CM-COAX-PS-F-OD8P10 |
|---|
| Centre conductor | Solid silver-plated centre conductor. |
|---|---|
| Dielectric | Low-density PTFE insulation. |
| Outer conductor and shield | Silver-plated flat conductor and braided shield. |
| Jacket | Fluoroplastic jacket. |
| Signal and frequency | Protocol, frequency band, impedance and loss budget. |
|---|---|
| Installation | Length, routing, bend radius, motion and available space. |
| Environment | Operating temperature and required environmental tests. |
| Termination | Connector, pinout, shielding and strain relief. |
Catalogue values support selection. Final tolerances, assembly performance and acceptance tests are defined in the approved drawing and specification. No certification is implied.

Microwave coaxial cables using silver-plated bimetallic alloy in the centre conductor and mechanical protection layer, for weight-sensitive airborne and space equipment routing.
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Stranded-centre-conductor microwave cables for routing that requires greater flexibility. Four sizes balance attenuation, mass and bend radius.
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Coaxial cables for RF, microwave, video and precision measurement, with selected configurations supporting frequencies up to 67 GHz. The operating range depends on the cable model, length and connector configuration.
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