Recent studies have shown that among the population of radio-loud active galactic nuclei in the local U-niverse, they numerically dominate compact radio sources of the FR0 class. In this paper, we present ob-servation results of a sample of 33 FR0 radio galaxies with RATAN-600 in the first half of 2020. For the first time, quasi-simultaneous spectra of this class objects have been measured in the frequency range as wide as 2.25–22.3 GHz. Radio luminosity of the sampled objects at the frequency 4.7 GHz varies within \({{10}^{{38.8 - 40.6}}}\) erg/s, with the average value of \({{10}^{{39.7}}}\) erg/s. The data confirm the deficit of extended radio emission: the average value of the core-dominance parameter (\(\log R \approx - 0.10\)) substantially exceeds the values typical for FRI galaxies. Quasi-simultaneous spectra are flat, while in the range 4.7–8.2 GHz, the average spectral index is close to zero. The spectra of 44 percent of objects which have more than three quasi-simultaneous points have peaked-shaped profiles. Using additional data of catalogs allowed us to identify three new candidates for the sources with the maximum of the spectrum in the GHz range. A statistically significant correlation was found between the parsec scale jet power and the bolometric luminosity of the accretion disk: \(\log\tfrac{{{{L}_{j}}}}{{{{L}_{{{\text{Edd}}}}}}} = (0.52 \pm 0.15)\log\tfrac{{{{L}_{{{\text{bol}}}}}}}{{{{L}_{{{\text{Edd}}}}}}} - (0.69 \pm 0.51)\). In general, the spectra of the studied objects are flat and have a complex structure, which indicates a high opacity in the radio range and the contribution of several components to the total spectrum.

最近的研究表明，在局部U-niverse的放射性大声活跃银河核中，它们在数值上主导着FR0类的紧凑型无线电源。在本文中，我们介绍了2020年上半年33个FR0射电星系的RATAN-600样本的观测结果。宽达2.25–22.3 GHz。采样对象在4.7 GHz频率下的无线电发光度在\（{{10} ^ {{38.8-40.6}}}} \）  erg / s内变化，平均值为\（{{10} ^ {{39.7} }} \） erg / s。数据证实了扩展无线电发射的不足：核心主导参数的平均值（\（\ log R \ approx-0.10 \））大大超过了FRI星系的典型值。准同时频谱是平坦的，而在4.7–8.2 GHz范围内，平均频谱指数接近零。具有超过三个准同时点的44％的对象的光谱具有峰形轮廓。利用目录的其他数据，我们可以确定三个新的候选源，这些候选源的最大频谱在GHz范围内。在秒差距标度喷射功率和吸积盘的辐射强度之间发现了统计学上显着的相关性：\（\ log \ tfrac {{{{L} _ {j}}}} {{{{L} _ {{{ \ text {Edd}}}}}} = =（0.52 \ pm 0.15）\ log \ tfrac {{{{L} _ {{{\ text {bol}}}}}}}} {{{{L} _ {{{\ text {Edd}}}}}}}-（（0.69 \ pm 0.51）\）。通常，研究对象的光谱是平坦的，并且具有复杂的结构，这表明在无线电范围内具有很高的不透明性，并且表明某些成分对总光谱的贡献。