Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Nizhny Novgorod Research Institute of Radio Engineering
Table title:
NNIIRT designed air surveillance radars
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Radar </th><th colspan=1 rowspan=1 > NATO reporting name </th><th colspan=1 rowspan=1 > Radio spectrum (NATO) </th><th colspan=1 rowspan=1 > Developed </th><th colspan=1 rowspan=1 > Production plant </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 > P-3 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1948 </td><td colspan=1 rowspan=1 > NITEL </td><td colspan=1 rowspan=1 > The first Soviet post-World War II air surveillance radar </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > P-8 Volga </td><td class="highlighted"  colspan=1 rowspan=1 > KNIFE REST A </td><td colspan=1 rowspan=1 > VHF </td><td class="highlighted"  colspan=1 rowspan=1 > 1950 </td><td colspan=1 rowspan=1 > NITEL </td><td class="highlighted"  colspan=1 rowspan=1 > The first Soviet radar with circular scan </td></tr>
<tr> <td colspan=1 rowspan=1 > P-10 Volga A </td><td colspan=1 rowspan=1 > KNIFE REST B </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1953 </td><td colspan=1 rowspan=1 > NITEL </td><td colspan=1 rowspan=1 > Frequency hopping </td></tr>
<tr> <td colspan=1 rowspan=1 > P-12 Yenisei </td><td colspan=1 rowspan=1 > SPOON REST </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1955 </td><td colspan=1 rowspan=1 > NITEL </td><td colspan=1 rowspan=1 > Coherent radar with MTI </td></tr>
<tr> <td colspan=1 rowspan=1 > P-14 Lena </td><td colspan=1 rowspan=1 > TALL KING </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1959 </td><td colspan=1 rowspan=1 > NITEL </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > P-70 Lena-M </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1968 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > First Soviet radar with chirp </td></tr>
<tr> <td colspan=1 rowspan=1 > P-18 Terek </td><td colspan=1 rowspan=1 > SPOON REST D </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1970 </td><td colspan=1 rowspan=1 > NITEL </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 5N84A Oborona-14 </td><td colspan=1 rowspan=1 > TALL KING C </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1974 </td><td colspan=1 rowspan=1 > NITEL </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 5N69 Salute </td><td class="highlighted"  colspan=1 rowspan=1 > BIG BACK </td><td colspan=1 rowspan=1 > D-band </td><td class="highlighted"  colspan=1 rowspan=1 > 1975 </td><td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > First Soviet 3D-radar </td></tr>
<tr> <td colspan=1 rowspan=1 > 44ZH6 </td><td colspan=1 rowspan=1 > TALL KING B </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1979 </td><td colspan=1 rowspan=1 > NITEL </td><td colspan=1 rowspan=1 > Stationary version of Oborona-14 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 55ZH6 Nebo </td><td class="highlighted"  colspan=1 rowspan=1 > TALL RACK </td><td class="highlighted"  colspan=1 rowspan=1 > VHF </td><td class="highlighted"  colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > NITEL </td><td class="highlighted"  colspan=1 rowspan=1 > First Soviet meter-wavelength 3D-radar </td></tr>
<tr> <td colspan=1 rowspan=1 > 1L13 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 52E6 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1982–1996 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1L13-3 Nebo-SV </td><td colspan=1 rowspan=1 > BOX SPRING </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1985 </td><td colspan=1 rowspan=1 > NITEL </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 55ZH6U Nebo-U </td><td colspan=1 rowspan=1 > TALL RACK </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > NITEL </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1L119 Nebo-SVU </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1997–2006 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 59N6-1 Protivnik-G1 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > D-band </td><td colspan=1 rowspan=1 > 1997 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Average time between failures 840 hours </td></tr>
<tr> <td colspan=1 rowspan=1 > 1L122 Avtobaza </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > D-band </td><td colspan=1 rowspan=1 > 1997–2006 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 52E6MU </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1997–2006 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > P-18 modernisation kits </td><td colspan=1 rowspan=1 > SPOON REST D </td><td colspan=1 rowspan=1 > VHF </td><td colspan=1 rowspan=1 > 1997–2006 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 55ZH6M Nebo-M </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > VHF/multi-band </td><td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 59N6M </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What were the first Soviet radar with circular scan, the first 3D radar and the first VHF-band 3D radar?
Answer:
Innovations include the first Soviet air surveillance radar with a circular scan; the P-8 Volga (NATO: KNIFE REST A) in 1950, the first 3D-radar; the 5N69 Salute (NATO: BIG BACK) in 1975, and in 1982 the first VHF-band 3D-radar; the 55Zh6 Nebo (NATO: TALL RACK).