Narrowband Transponder

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Resources

Bandplan Information and Operating Guidelines

Receiving

Hardware Options

Satellite Dish

Recommended to start with atleast an 80cm dish,

go for bigger if you plan to use the wideband

transponder in the future.

LNB

You want a PLL based LNB

(In South Africa a newer model lnb used for DSTV

works just fine to start with)

Bias-T

This provides power to your LNB

(Different voltages can switch the polarization)

SDR or DownConverter + Radio

Your receiving side can be as simple as a rtlsdr,

but consider getting an sdr with transmit capabilities

(For Example: PlutoSDR).

A downconverter + Radio can also be used.

Transmitting

Hardware Options

The table below assumes you have all the receiving hardware and only want to add to it to start transmitting.

SDR or UpConverter + Radio

SDR must have transmit capabilities

An upconverter + Radio can also be used.

Pre Amplifier

Most SDR’s have a very low power output

Depending on your amplifier you might

need a pre-amplifier

Amplifier

1w-5w depending on your dish size.

3w on 80cm dish works perfectly

Antenna

Poty or Helical

Lots of DIY options eg. Ice Cone feed