--- title: 'Dimensions of the 5-element Uda-Yagi antenna for the FM range 87.5-108 MHz' url: 'https://ra1ahq.blog/en/razmery-5-elementnoi-antenny-uda-yagi-dlya-fm-diapazona-87-5-108-mgc' markdown: 'https://ra1ahq.blog/en/razmery-5-elementnoi-antenny-uda-yagi-dlya-fm-diapazona-87-5-108-mgc.md' lang: en date: '2026-02-11' description: 'Dimensions of a directional antenna of the "wave channel" type (Uda-Yagi) for the FM broadcast range 87.5-108 MHz. An ant' taxonomy: category: - blog tag: - антенны - УКВ archives_month: - feb_2026 archives_year: - '2026' --- # Dimensions of the 5-element Uda-Yagi antenna for the FM range 87.5-108 MHz 11 February 2026 ![Dimensions of the 5-element Uda-Yagi antenna for the FM range 87.5-108 MHz](https://ra1ahq.blog/images/e/9/2/b/1/e92b1af16c61fdb08e20bbb42f70b688542cb4d4-yagi-fm-10mm.png)17:00 ### Dimensions of the 5-element Uda-Yagi antenna for the FM range 87.5-108 MHz [антенны](https://ra1ahq.blog/en/tag:%D0%B0%D0%BD%D1%82%D0%B5%D0%BD%D0%BD%D1%8B), [УКВ](https://ra1ahq.blog/en/tag:%D0%A3%D0%9A%D0%92) 11 February 2026 17:00 Dimensions of a directional antenna of the "wave channel" type (Uda-Yagi) for the FM broadcast range 87.5-108 MHz. An antenna for receiving FM signals over long distances can be made independently from a wooden block and aluminum tubes. For calculations in the Mmana-Gal program, I chose an antenna with 5 elements, since I wanted to achieve a gain of 8 dbi. (A 2-element loop antenna has the same 8 dbi gain, but it is very narrowband). The length of the traverse is 2 meters. Dimensions 1.65 x 2 meters. The 75 Ohm power cable is connected to the second element from the end (regular dipole). The antenna has a moderate gain of 7.5-8 dbi, but very good matching with a 75 Ohm cable (SWR<1.5). - Range 87.5-108 MHz - Gain G=7.5 dbi - F/B 10 db ### Dimensions of a 5-element Uda-Yagi antenna, made of tubes with a diameter of 4 mm ![yagi-fm-4mm](https://ra1ahq.blog/images/d/2/6/3/b/d263b69d4ce446edcfb2333f295eed3773715bb7-yagi-fm-4mm.png "yagi-fm-4mm") | Element | R | A | D1 | D2 | D3 | |---|---|---|---|---|---| | Position, mm | 0 | 688 | 747 | 1163 | 1950 | | Length, mm | 1616 | 1582 | 1344 | 1280 | 1234 | ### Dimensions of a 5-element Uda-Yagi antenna, made of tubes with a diameter of 6 mm ![yagi-fm-6mm](https://ra1ahq.blog/images/d/1/3/d/d/d13dd73cfe6649c81e3662f2ddce3c585774f1ee-yagi-fm-6mm.png "yagi-fm-6mm") | Element | R | A | D1 | D2 | D3 | |---|---|---|---|---|---| | Position, mm | 0 | 688 | 747 | 1163 | 1950 | | Length, mm | 1622 | 1580 | 1326 | 1272 | 1222 | ### Dimensions of a 5-element Uda-Yagi antenna, made of tubes with a diameter of 8 mm ![yagi-fm-8mm](https://ra1ahq.blog/images/c/b/5/7/4/cb574b0ea46a734f5a644cbdb32bed6ebb35aeae-yagi-fm-8mm.png "yagi-fm-8mm") | Element | R | A | D1 | D2 | D3 | |---|---|---|---|---|---| | Position, mm | 0 | 688 | 747 | 1163 | 1950 | | Length, mm | 1618 | 1578 | 1316 | 1268 | 1212 | ### Dimensions of a 5-element Uda-Yagi antenna, made of tubes with a diameter of 10 mm ![yagi-fm-10mm](https://ra1ahq.blog/images/e/9/2/b/1/e92b1af16c61fdb08e20bbb42f70b688542cb4d4-yagi-fm-10mm.png "yagi-fm-10mm") | Element | R | A | D1 | D2 | D3 | |---|---|---|---|---|---| | Position, mm | 0 | 688 | 747 | 1163 | 1950 | | Length, mm | 1610 | 1578 | 1308 | 1258 | 1202 | ### Dimensions of a 5-element Uda-Yagi antenna, made of tubes with a diameter of 12 mm ![yagi-fm-12mm](https://ra1ahq.blog/images/0/8/2/8/0/082809aa9779723999cad5fb6bba55bd81e01131-yagi-fm-12mm.png "yagi-fm-12mm") | Element | R | A | D1 | D2 | D3 | |---|---|---|---|---|---| | Position, mm | 0 | 688 | 747 | 1163 | 1950 | | Length, mm | 1604 | 1572 | 1298 | 1254 | 1190 | ### Dimensions of a 5-element Uda-Yagi antenna, made of tubes with a diameter of 16 mm ![yagi-fm-16mm](https://ra1ahq.blog/images/f/1/b/a/8/f1ba8844656b209ab9641c45a1ac63921159216d-yagi-fm-16mm.png "yagi-fm-16mm") | Element | R | A | D1 | D2 | D3 | |---|---|---|---|---|---| | Position, mm | 0 | 688 | 747 | 1163 | 1950 | | Length, mm | 1594 | 1574 | 1286 | 1248 | 1170 | --- ### SWR graph (matched to 75 Ohm cable) ![swr](https://ra1ahq.blog/images/6/8/c/d/7/68cd7469edf50fc1fbd33a2b6d4a76cc0575fecc-swr.png "swr") ### Antenna radiation pattern (for frequency 99.5 MHz) ![directivity](https://ra1ahq.blog/images/b/3/5/c/b/b35cbff61556204c32933b0ef3b28c7d148e07c0-directivity.png "directivity") ### Antenna radiation pattern (for frequency 88.0 MHz) ![directivity-low](https://ra1ahq.blog/images/1/d/6/6/4/1d6648b30c900fec20b848367aebfaf7623137ac-directivity-low.png "directivity-low") ### Antenna radiation pattern (for frequency 107.0 MHz) ![directivity-high](https://ra1ahq.blog/images/c/a/2/0/d/ca20db4bee10fbe5a7fd2a39fe5f68977f89176f-directivity-high.png "directivity-high") --- ### Archive of antenna models for the MMANA application \*[yagi-fm.zip](https://ra1ahq.blog/en/razmery-5-elementnoi-antenny-uda-yagi-dlya-fm-diapazona-87-5-108-mgc/yagi-fm.zip) ### Related publications [ ![](https://ra1ahq.blog/images/f/f/e/6/7/ffe6717c281f66f3f691cc1fa6c0cbc2f6b88bb4-pautnew.png) Dimensions of the Kharchenko "Web" broadband antenna for FM and VHF bands ](https://ra1ahq.blog/en/razmery-shirokopolosnoi-antenny-kharchenko-pautinka-dlya-fm-diapazona-87-5-108-mgc) [ ![](https://ra1ahq.blog/images/b/c/c/b/f/bccbf8d86de2b97e6b87110889063422c5ac98a2-435-7el-3mm.png) Yagi antennas for 144 MHz (Hairpin) and 435 MHz ](https://ra1ahq.blog/en/antenny-yagi-144-mgc-hairpin-i-435-mgc) [ ![](https://ra1ahq.blog/images/0/0/4/0/c/0040c10c9a45986a89300ddb875ea4f3de46928c-foxhunt1.png) Antenna for "Fox Hunt" at 144.7 MHz ](https://ra1ahq.blog/en/antenna-dlya-okhoty-na-lis-na-144-7-mgc) [ ![](https://ra1ahq.blog/images/6/2/8/1/d/6281d1a1cabfb8f5d6f2e0472b43c1bd9a3854a0-2band50.png) Simple dual-band antennas for the 144 and 433 MHz amateur radio bands ](https://ra1ahq.blog/en/prostye-open-sleeve-144-433-mgc) [ ![](https://ra1ahq.blog/images/5/8/8/b/0/588b037e35cf4bb3f1184307c033d21128c406d4-plate.png) Constructive solution for the power supply unit for "wave channel" antennas of the VHF range with a split vibrator ](https://ra1ahq.blog/en/konstruktivnoe-reshenie-uzla-pitaniya-antenn-volnovoi-kanal-ukv-diapazona-s-razreznym-vibratorom) [ Backward](https://ra1ahq.blog/en/nezavisimyi-ot-distributiva-menedzher-paketov-pkcon "Previuous page") [ Forward ](https://ra1ahq.blog/en/razmery-shirokopolosnoi-antenny-kharchenko-pautinka-dlya-fm-diapazona-87-5-108-mgc "Next page") ## Languages - 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