Hello and Thank You for reading this,
A week ago, I bought a RTL-SDR dongle in order to learn about radio and TV signals.
I see where some members of SARA use it for detecting meteors. I've been a member for a month now.
After doing some research, it looks like there is a good Canadian TV analog transmitter
which broadcasts at 55.25 MHz.
I would like to detect meteors at this frequency; but I need an antenna.
The more I read about antennas, the more confused I get. There are so many types(Dipole, Yagi, ...), each with different characteristics and costs. I don't understand many of the terms used.
Is there an inexpensive, off-the-shelf antenna that I could purchase?
Your advice is appreciated.
Conrad Cardano
Dye Hill Observatory
Rhode Island, USA
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Yes, the station is at 55.240. If you are on USB then offset the freq by the audio freq you want to hear at. ie for 1000 hz , offset the freq to 55.239.000. They "tune this frequency every month and it slides up and down ~100 hz
What part of the country are you in? I have used a wire element dipole with success at demonstrations. keep it low 1-2 M in elevation
For more success, use a TV preamplifier before the SDR.
Mike w9ys
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Not any more. I don't know exactly when they turned off their TV channel 2 signal, but it certainly isn't allocated anymore.CHBX-TV in Canada.
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Hi
I live in Rhode Island.
It sounds like there are no off-the-shelf antennas available. Am I right?
I’m 72 years old, and building an antenna does not sound easy.
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A simple low band TV antenna can be used.A good example would be Winegard YA7000CTV Antenna.
Regards
Jim Van Prooyen N8PQK
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There are infinite possibilities but. to start, a simple dipole will work fine , orientated broadside to the Canadian transmitter site. A simple preamp that will accept bias from the dongle would help, particularly with a longer run of low cost coax. Make up with center dipoe coax to wire adapter or with two sections of EMT or other tubing clamped to a board.
https://www.westmountainradio.com/antenna_calculator.php
Lester B Veenstra K1YCM MØYCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (Reformed USNSG CTM1)
452 Stable Ln
Keyser WV 26726 USA
GPS: 39.336826 N 78.982287 W (Google)
GPS: 39.33682 N 78.9823741 W (GPSDO)
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Home: +1-304-289-6057
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Antenna assembly covers 6m
tripod support
https://www.aliexpress.us/item/3256809682744515.html?spm=a2g0o.productlist.main.4.2370443c4SHk66&aem_p4p_detail=202511040658135108552593094160000153808&algo_pvid=4a814fd6-0a72-400a-9d86-1a62de027803&algo_exp_id=4a814fd6-0a72-400a-9d86-1a62de027803-3&pdp_ext_f=%7B"order"%3A"1"%2C"eval"%3A"1"%2C"fromPage"%3A"search"%7D&pdp_npi=6%40dis%21USD%2181.72%2149.03%21%21%2181.72%2149.03%21%40210311cc17622682936823268ec260%2112000050424060772%21sea%21US%21171628410%21X%211%210%21n_tag%3A-29919%3Bd%3A325dd6f4%3Bm03_new_user%3A-29895&curPageLogUid=m8jL648TuNoi&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005009869059267%7C_p_origin_prod%3A&search_p4p_id=202511040658135108552593094160000153808_1
Lester B Veenstra K1YCM MØYCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (Reformed USNSG CTM1)
452 Stable Ln
Keyser WV 26726 USA
GPS: 39.336826 N 78.982287 W (Google)
GPS: 39.33682 N 78.9823741 W (GPSDO)
Telephones:
Home: +1-304-289-6057
US cell +1-304-790-9192
Jamaica cell: +1-876-456-8898
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--Mike Otte W9YS
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There is certainly a signal at 55.240 ! look what others, throughout the world, are using for equipment and frequencies on www.rmob.org
Tonite i was detecting aurora with the meteor detection station. The station carrier is at about 435-450 seen on the audio scale on the right. The time at the bottom is local CST
On Tuesday, November 4, 2025 at 11:43:17 AM UTC-6 Marcus D. Leech wrote:
On 2025-11-03 23:02, Mike Otte wrote:
There is certainly a signal at 55.240 ! look what others, throughout the world, are using for equipment and frequencies on www.rmob.org
Interesting. I re-did my search today, but limited it to ONLY broadcast licenses, and CHBX-TV shows up, in Sault St. Marie, but with a TX power of only 1uW! I don't know if
this is a typo, or the license-holder wants to retain the ability to go back "on air" for reelz at some later date.
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