diff --git a/antenna.html b/antenna.html index 25d841352b2db593a8763d558858aa6e91de03e7..89233fb466a37605df35bceaa1c5ec1584c0ea63 100644 --- a/antenna.html +++ b/antenna.html @@ -273,10 +273,10 @@ Additionally, a number of high-energy receivers are being planned for the SRT. T <colgroup> <col width="10%" /> <col width="5%" /> -<col width="14%" /> +<col width="15%" /> <col width="10%" /> <col width="14%" /> -<col width="47%" /> +<col width="46%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">Backend</th> @@ -311,7 +311,7 @@ Additionally, a number of high-energy receivers are being planned for the SRT. T </tr> <tr class="row-odd"><td><strong>SARDARA</strong></td> <td>L</td> -<td>420(100*),1500(500*)</td> +<td>420(90/100*),1500(500*)</td> <td>down to 5ms</td> <td>1024 or 16384</td> <td>spectro-polarimeter(*)</td> @@ -349,7 +349,7 @@ Additionally, a number of high-energy receivers are being planned for the SRT. T </tbody> </table> <p>(*) For the 1500 MHz SARDARA configuration, the actual available RF bandwidth is 1200 MHz with the C-band and K-band receivers. -Similarly, for the 420 MHz SARDARA configuration, the effective RF bandwidth is 300 MHz with the K-band and C-band receivers. Instead, the L-band receiver only has 500 MHz of RF bandwidth; when the SARDARA 420 MHz configuration is needed, the actual available RF bandwidth for SARDARA is 100 or 90 MHz, according to the selected receiver RF filter.</p> +Similarly, for the 420 MHz SARDARA configuration, the effective RF bandwidth is 300 MHz with the K-band and C-band receivers. Instead, the L-band receiver only has 500 MHz of RF bandwidth; when the SARDARA 420 MHz configuration is needed, the actual available RF bandwidth for SARDARA is 100 MHz (when selecting the XXL3 or XXC3 filters) or 90 MHz (when selecting the XXL5 or XXC5 filters).</p> <div class="section" id="total-power"> <h2>Total Power<a class="headerlink" href="#total-power" title="Permalink to this headline">¶</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> @@ -557,7 +557,7 @@ Available configurations consist of:</p> </ul> <p>SARDARA’s spectral resolution and sensitivity are defined by its full 1500 MHz bandwidth. However only 1200 MHz of the full 1500 MHz bandwidth is usable, since the 1200 MHz filter of the Total Power backend’s Focus Selector is being used as input to SARDARA.</p> <p><strong>L-band setup</strong></p> -<p>The full bandwidth for this receiver is 500 MHz (1.3-1.8 GHz). RF filters must be used (choose between XXL4, XXL2 etc.). For the 420 MHz configuration, the available filters are: XXL3, XXL5, XXC3 and XXC5 (to be selected following the needed sky frequency and polarization). We note that with these filters, the effective RF bandwidth is 100 MHz or 90 MHz.</p> +<p>The full bandwidth for this receiver is 500 MHz (1.3-1.8 GHz). RF filters must be used (choose between XXL4, XXL2 etc.). For the 420 MHz configuration, the available filters are: XXL3, XXL5, XXC3 and XXC5 (to be selected following the needed sky frequency and polarization). We note that with these filters, the effective RF bandwidth is 100 MHz (using the XXL3 or XXC3 filters) or 90 MHz (using the XXL5 or XXC5 filters).</p> <p><strong>SARDARA is offered in shared-risk mode in all of its configurations.</strong></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> </div> diff --git a/antenna.rst b/antenna.rst index 88dc3ce9e4ce417ea03d433150baf8fbc434c07e..401d041662c2238272488bb4400e70ce6ab104e6 100644 --- a/antenna.rst +++ b/antenna.rst @@ -151,20 +151,20 @@ The frontend (receiver) outputs are connected to the backend instruments either These backends are available for the current call for proposals: -=============== ======= ===================== =============== ===================== ====================================================================== -Backend Bands Bandwidth (MHz) Sampling time Max freq. bins Observing modes -=============== ======= ===================== =============== ===================== ====================================================================== -**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(300*),1500(1200*) down to 5ms 1024 or 16384 spectro-polarimeter(*) -**SARDARA** L 420(100*),1500(500*) 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 -=============== ======= ===================== =============== ===================== ====================================================================== +=============== ======= ======================= =============== ===================== ====================================================================== +Backend Bands Bandwidth (MHz) Sampling time Max freq. bins Observing modes +=============== ======= ======================= =============== ===================== ====================================================================== +**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(300*),1500(1200*) down to 5ms 1024 or 16384 spectro-polarimeter(*) +**SARDARA** L 420(90/100*),1500(500*) 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 +=============== ======= ======================= =============== ===================== ====================================================================== (*) For the 1500 MHz SARDARA configuration, the actual available RF bandwidth is 1200 MHz with the C-band and K-band receivers. -Similarly, for the 420 MHz SARDARA configuration, the effective RF bandwidth is 300 MHz with the K-band and C-band receivers. Instead, the L-band receiver only has 500 MHz of RF bandwidth; when the SARDARA 420 MHz configuration is needed, the actual available RF bandwidth for SARDARA is 100 or 90 MHz, according to the selected receiver RF filter. +Similarly, for the 420 MHz SARDARA configuration, the effective RF bandwidth is 300 MHz with the K-band and C-band receivers. Instead, the L-band receiver only has 500 MHz of RF bandwidth; when the SARDARA 420 MHz configuration is needed, the actual available RF bandwidth for SARDARA is 100 MHz (when selecting the XXL3 or XXC3 filters) or 90 MHz (when selecting the XXL5 or XXC5 filters). Total Power ----------- @@ -283,7 +283,7 @@ SARDARA's spectral resolution and sensitivity are defined by its full 1500 MHz b **L-band setup** -The full bandwidth for this receiver is 500 MHz (1.3-1.8 GHz). RF filters must be used (choose between XXL4, XXL2 etc.). For the 420 MHz configuration, the available filters are: XXL3, XXL5, XXC3 and XXC5 (to be selected following the needed sky frequency and polarization). We note that with these filters, the effective RF bandwidth is 100 MHz or 90 MHz. +The full bandwidth for this receiver is 500 MHz (1.3-1.8 GHz). RF filters must be used (choose between XXL4, XXL2 etc.). For the 420 MHz configuration, the available filters are: XXL3, XXL5, XXC3 and XXC5 (to be selected following the needed sky frequency and polarization). We note that with these filters, the effective RF bandwidth is 100 MHz (using the XXL3 or XXC3 filters) or 90 MHz (using the XXL5 or XXC5 filters). **SARDARA is offered in shared-risk mode in all of its configurations.**