Narrowband Transponder

Resources
Receiving
Hardware Options
Satellite Dish
Recommended to start with atleast an 80cm dish,go for bigger if you plan to use the widebandtransponder in the future.LNB
You want a PLL based LNB(In South Africa a newer model lnb used for DSTVworks 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 capabilitiesAn upconverter + Radio can also be used.Pre Amplifier
Most SDR’s have a very low power outputDepending on your amplifier you mightneed a pre-amplifierAmplifier
1w-5w depending on your dish size.3w on 80cm dish works perfectlyAntenna
Poty or HelicalLots of DIY options eg. Ice Cone feed