Nançay Radioheliograph

0- p

modulation

Notch filters

(TV Canal+)

Low noise

high dynamic

preamplifiers

LF

Dipoles

HF

Dipoles

Image

reject

filters

Polariz.

select

Walsh

functions

Filter

select

Filter

select

Local

Oscillator

To receiver

Dipole

and

filter

selects

Filter

select

Walsh

function

Local

Oscillator

Upper/

lower side

select

X 80

Low noise

high dynamic

preamplifiers

0- p

Modulator

Bandpass

filters

Bandpass

filters

Notch filter

(TV Canal+)

Mixer

113 MHz, 5 MHz wide

Nançay Radioheliograph, antennae electronics

LF

HF

To receiver

113 MHz, 5 MHz wide