Siglent S40-29M29F-1M DC~40 GHz 1000 mm Cable
The S40-29M29F-1M is a 1000 mm 50 Ω test cable with 2.92 mm connectors - male on one end, female on the other - specified from DC to 40 GHz.
2.92 mm male to 2.92 mm female, specified to 40 GHz
The S40-29M29F-1M is a 1000 mm 50 Ω test cable with 2.92 mm connectors — male on one end, female on the other — specified from DC to 40 GHz.
This is the cable for Siglent's 2.92 mm instruments. The SSA5000A analysers and the SSG5000A and SSG6000A generators all present a 2.92 mm male RF port, so the cable's female end goes to the instrument and its male end to the device. The 2.92 mm interface — often called K — is an air-dielectric precision connector built to stay mode-free to 40 GHz, which is why it, rather than SMA, is what these instruments use.
At a glance
- Connector 12.92 mm male
- Connector 22.92 mm female
- FrequencyDC – 40 GHz
- Impedance50 Ω
- Length1 m
Order code S40-29M29F-1M · supplied by SIGLENT
What it is for
The SSA5000A and SSG5000A/6000A cable
Those instruments have a 2.92 mm male port. The female end of this cable is what mates with it.
Mates with SMA and 3.5 mm too
Mechanically compatible with both — useful, but the joint is then limited to the lesser connector, not 40 GHz.
Protect the port behind it
At 40 GHz connector wear is expensive. Pair it with the 2.92F-2.92F-40A adaptor as a port saver and let the adaptor take the cycles.
Specifications
| Parameter | Value |
|---|---|
| Connector 1 | 2.92 mm male |
| Connector 2 | 2.92 mm female |
| Frequency range | DC – 40 GHz |
| Impedance | 50 Ω |
| Length | 1 m |
Siglent publishes connector, bandwidth and length for this part. Detailed figures such as VSWR and insertion loss are not published for it — if your application depends on them, ask us and we will request them from the factory.
Instruments it connects to
The 2.92 mm male end mates with the RF port on these Siglent instruments — each port taken from that instrument’s own datasheet.
- SSA5000A
- SSG5000A
- SSG6000A
Not sure which port your instrument has? The RF cables and adaptors page carries the full table.
Other cables in the range
Is this the right cable for your setup?
Tell us the instrument and the device you are connecting, and we will confirm the interface and the bandwidth you need before you order. We are the official Siglent distributor for the European Union, and we also build assemblies to length and connector on request.
More information
Specifications are taken from the manufacturer’s official documentation and are provided for guidance only. They are subject to change without notice, and errors and omissions may occur. The manufacturer’s current documentation is the definitive reference. Prices exclude VAT.


