diff --git a/antenna.html b/antenna.html index 8e552b65e1126da5faeae081968cc7845193264f..04d42f5515116bf93a613b881a1eb6af6f44eb14 100644 --- a/antenna.html +++ b/antenna.html @@ -312,14 +312,14 @@ Additionally, a number of high-energy receivers are being planned for the SRT. T <td>420, 1500(1200*)</td> <td>down to 5ms</td> <td>1024 or 16384</td> -<td>continuum (includes polarization) & spectroscopy (no polarization)</td> +<td>spectro-polarimeter(*)</td> </tr> <tr class="row-odd"><td><strong>SARDARA</strong></td> <td>L</td> <td>115,230,460,1500</td> <td>down to 5ms</td> <td>1024 or 16384</td> -<td>continuum (no polarization) & spectroscopy (no polarization)</td> +<td>spectro-polarimeter(**)</td> </tr> <tr class="row-even"><td><strong>DFB3</strong></td> <td>L,C,K</td> @@ -354,6 +354,8 @@ Additionally, a number of high-energy receivers are being planned for the SRT. T </tbody> </table> <p>(1200*) the actual available bandwidth for SARDARA is 1200 MHz.</p> +<p>(*) at C and K bands, polarization is offered for continuum observations but not for observations in spectral line mode</p> +<p>(**) at L-band, polarization is not offered in spectral line mode. it could be offered for continuum observations but has not been fully tested.</p> <div class="section" id="total-power"> <h2>Total Power<a class="headerlink" href="#total-power" title="Permalink to this headline">ΒΆ</a></h2> <p>The Total Power backend is a single-band, seven-beam backend for continuum observations. Located just below the dish, this backend is formed by 14 voltage-to-frequency converters that digitize the incoming RF signals. Different IF inputs can be selected from three focal points. Different bandwidths (maximum bandwidth: 0.1 - 2.1 GHz) and attenuation levels can be selected.</p> @@ -558,7 +560,7 @@ Available configurations consist of:</p> <p><strong>in L band:</strong></p> <p>The full bandwidth for this receiver is 500 MHz (1.3-1.8 GHz). RF filters can be used (XXL4, XXL2 etc.) as well as additional backend filters (115, 230 or 460 MHz).</p> <p>More detailed information on the SARDARA backend can be found here: <a class="reference external" href="https://www.worldscientific.com/doi/full/10.1142/S2251171718500046">SARDARA</a>.</p> -<p>Note: for this call, only total intensity is offered for spectroscopic observations with SARDARA (no spectro-polarimetry). Instead for continuum observations, polarization is available in C and K-bands (but not L-band).</p> +<p>Note: for this call, only total intensity is offered for observations in spectral line mode with SARDARA. Instead for continuum observations, the spectro-polarimetric observing mode has been tested for C and K bands, but not for L-band.</p> </div> </div> <div class="section" id="calibration"> diff --git a/antenna.rst b/antenna.rst index b58fede3f8bda38b5d9db1ca8216e372d5d8cff3..0b4be009abebd4c2152663e45602601afb7a5be5 100644 --- a/antenna.rst +++ b/antenna.rst @@ -158,8 +158,8 @@ Backend Bands Bandwidth (MHz) Sampling time Max freq. bins =============== ======= ================= =============== ===================== ====================================================================== **Total Power** C,K 250,680,1200,2000 1-1000 ms 1 continuum (analog) **XARCOS** C,K 0.5,2.0,7.8,62.5 10s 2048 spectro-polarimeter -**SARDARA** C,K 420, 1500(1200*) down to 5ms 1024 or 16384 continuum (includes polarization) & spectroscopy (no polarization) -**SARDARA** L 115,230,460,1500 down to 5ms 1024 or 16384 continuum (no polarization) & spectroscopy (no polarization) +**SARDARA** C,K 420, 1500(1200*) down to 5ms 1024 or 16384 spectro-polarimeter(*) +**SARDARA** L 115,230,460,1500 down to 5ms 1024 or 16384 spectro-polarimeter(**) **DFB3** L,C,K 256,512,1024 100 microsec 8192, pulsars: 2048 online pulsar folding + pulsar/transient search **ROACH1** P,L,C,K 128 - (varies) baseband recorder + offline pulsar folding + pulsar/transient search **DBBC** P,L,C,K 512 - - VLBI @@ -167,6 +167,10 @@ Backend Bands Bandwidth (MHz) Sampling time Max freq. bins (1200*) the actual available bandwidth for SARDARA is 1200 MHz. +(*) at C and K bands, polarization is offered for continuum observations but not for observations in spectral line mode + +(**) at L-band, polarization is not offered in spectral line mode. it could be offered for continuum observations but has not been fully tested. + Total Power ----------- @@ -287,7 +291,7 @@ The full bandwidth for this receiver is 500 MHz (1.3-1.8 GHz). RF filters can be More detailed information on the SARDARA backend can be found here: `SARDARA <https://www.worldscientific.com/doi/full/10.1142/S2251171718500046>`_. -Note: for this call, only total intensity is offered for spectroscopic observations with SARDARA (no spectro-polarimetry). Instead for continuum observations, polarization is available in C and K-bands (but not L-band). +Note: for this call, only total intensity is offered for observations in spectral line mode with SARDARA. Instead for continuum observations, the spectro-polarimetric observing mode has been tested for C and K bands, but not for L-band. Calibration ===========