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Extending Grundig Sonoclock 660 Antenna for Better FM Reception in Warsaw

toszk 138021 24
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 6815293
    toszk
    Level 10  
    Hi,

    I was looking for a similar problem but I did not find anything specific on the forum.

    Well, I live in Warsaw, 14 km from the Center (Ursynów) and I have problems with the reception of some radio stations (including Trójki 98.8).
    I wonder if there is any simple, effective way to improve the reception of the radio I use - the Grundig Sonoclock 660 clock radio. It has a single cable for its antenna.
    Does it make sense to extend this cable and e.g. lead it outside the apartment?
    Are there any other methods?

    Thank you in advance for your help
    Tom
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  • #2 6815692
    Richter
    Level 31  
    Buy a better antenna with better gain.
  • #3 6815726
    toszk
    Level 10  
    The problem is that the antenna is permanent on the radio. This is the clock radio ;-)
    Something such
    Therefore, it is possible to either extend or modify the cable by cutting and soldering something else, or disassembling the radio and soldering something else to the board.
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  • #4 6815752
    SP8JUX
    Rest in Peace
    The length of this antenna-cable is factory-selected, do not interfere with its length, you can experimentally change its location, maybe change the location of the clock radio? Maybe move this antenna away from the wall?
    You can use an external one instead, but it requires interference with the electronics.
  • #5 6815753
    Ptolek
    Level 36  
    toszk wrote:
    possibly dismantling the radio and soldering something else to the board.

    You can add a normal antenna socket and buy a real antenna. Although it will look funny in combination with this radio, I see no obstacles :) . The problem is to match the antenna to the input circuits of the receiver, but without a good fit it would certainly be better after such a modification. Prerequisite is an external antenna.
    At the beginning, try to extend the cable so that it is 1-1.5 meters and set it somehow, there is no more options with the cable itself - unless you put the radio somewhere high near the window and set the cable / antenna as best as possible. This may not be convenient.
    Another option is to buy better equipment with an antenna socket, for example a micro-system or a used tuner + amplifier.
  • #6 6816359
    rozpuszczalnik
    Level 17  
    Ptolek, don't be angry, but you answered "the best motorcycle is a car". It is best to extend the wire that it makes for the antenna. You can disassemble this clock radio and try to fine-tune the input circuits by stretching or compressing the coil.
  • #7 6816550
    Ptolek
    Level 36  
    I assumed that the clock radio is functional and tuned. It is as easy as fine-tuning the receiver to add an impedance matching socket.
  • #8 6816561
    albion1
    Level 17  
    Now you do not get angry with the solvent, but you can stretch the rubber in your pants and not tune the receiver. I agree 100% with Ptolek
  • #10 6817742
    albion1
    Level 17  
    I can see that I found a real professional. jatzek j how would you not notice this radio has PLL. I do not want to explain what it is (because you would not understand anyway, you probably prefer to listen to a gramophone) Read here http://pl.wikipedia.org/wiki/PLL. And a horse with a row to the one who will find a drawing coil on this radio in the input circuit. The author of the post wrote that he has a problem with the reception of some stations, which is typical in the absence of a suitable antenna.



    jatzek and his statements, Flew to the basket. [SP5ANJ]
    May "less" such Professionals.
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  • #11 6819042
    rozpuszczalnik
    Level 17  
    I can see that the knowledge of Wikipedia, col. "Albion1", is shocking, everything that someone writes is associated with panties. Regardless of whether the receiver with synthesis or tuned with a knob, has input circuits, the tuning of which should be corrected, and not assumed that the radio is working. Don't be angry with "albion 1", but both the coil and the rubber will stretch, unless you associate the coil with a different circuit.
  • #12 6819165
    SP5ANJ
    Rest in Peace
    Gentlemen. :!: :!: :!:

    I remind you that the topic of this thread is " Improving FM radio reception with a cable as an antenna ", not the art of stretching rubber. :D


    toszk one of the " Masters of the Polish Pen "he wrote that" you will not twist the ... whip ", but try to make such an antenna and the reception in Ursynów will improve.

    Extending Grundig Sonoclock 660 Antenna for Better FM Reception in Warsaw


    Greetings.
  • #13 6819247
    rozpuszczalnik
    Level 17  
    No art of stretching the rubber, sounds fun, the art of writing, avoiding drawing typos makes sense too. As for this antenna, I suspect that the reception deteriorated after the RCN was moved to Raszyn.
  • #14 6819470
    Ptolek
    Level 36  
    Interesting article:
    Extending Grundig Sonoclock 660 Antenna for Better FM Reception in Warsaw
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  • #15 6819571
    albion1
    Level 17  
    Either I'm getting old and I don't get it anymore, or there are more idiots in the world. In relation to a friend, a solvent, I will only say that what expert gives such advice. You can read what advice he gave above. He insists on tuning the input circuits, horrifyingly by TENSIONING (now translated with a typo) a coil that does not exist on this radio. And why does it not exist because the input circuits in this radio are made of something like this on the input filters:
    Extending Grundig Sonoclock 660 Antenna for Better FM Reception in Warsaw

    And now let him prove to me that he will stretch them, I wish him good luck :D . I would like to warn against hasty interference on this radio (despite the insistence of a pseudo expert). Because without adequate back-up facilities, you will only disrupt the radio and not knowing the issues related to RF. you can even damage them. Do as these colleagues advised. Test different solutions with the antenna. the solvent also writes that the solution proposed by SP5ANJ will not help but worsen the reception because the transmitter has been moved. Well, this claim has passed himself over. I'm curious on what basis he claims so? And my dear, I am curious where the knowledge in the subject of high-frequency technology comes from. like?
    rozpuszczalnik wrote:
    You can disassemble this clock radio and try to fine-tune the input circuits by stretching or compressing the coil.
    Maybe it will enlighten me :idea:
  • #16 6820365
    kondensator
    Level 36  
    VHF stations that previously broadcast from the Palace of Culture and Science - continue from the Palace of Culture and Science (07.2009).
    http://radiopolska.pl/wykaz/pokaz_dwoj.php?pid=45
    In addition, two stations broadcast from Łazy (Raszyn)
    http://radiopolska.pl/wykaz/pokaz_lokalizacja.php?pid=611
    Polarization (apart from R. Jutrzenka, but this Kol. Toszk will receive anyway because he is very close) is vertical, ie V (but after reflections from buildings and in the room you have to choose).

    Col. Toszk did not write on which floor he lives, from which side he has windows ... but probably still: he lives in a block of flats, among other buildings, low. Otherwise, it would not write (unless the receiver is extremely bad).
    Suggested sequence: in the same room try to receive on a borrowed receiver with a coaxial input to the VHF antenna and a makeshift antenna, similar to that described by Col. SP5ANJ. If the effect is satisfactory not only at night (when most computers and televisions are turned off), then you can think about adding the antenna input to the current receiver (but you can be disappointed because of its parameters and lack of shielding) or try to get a real metal receiver (with antenna input (I wrote in the previously mentioned topics).
    Unfortunately, the optimal location (or rather hanging on a string, plastic or wooden brackets, because the antenna is to be moved away from the walls, metal, there is no HF-free point for which it could be attached as in a loop dipole) will often be different for different frequencies even though they are broadcasted from the same place and with the same polarity.
    However, if the room is below the 5th floor, it may turn out that for good reception you will need (in addition to the real receiver) an antenna on the roof or a connection to the MATV installation (there should be, maybe there is a connection in another room) or CATV - even in 99 In% of cases, this will result in a reception much worse than with your own properly installed antenna on the roof.
    At the moment, the possibility of reception is more and more often determined not by the level of the desired signal, but by the level of interference (various types, often "inaudible in the loudspeaker" from a PC, OTVC, fluorescent lamps, inverters from elevators, etc.) in the place of reception, and the reflection of the signal from other buildings additionally complicate matters (especially for stereo reception)
    If the receiver is poorly shielded or unshielded and receives "without an antenna" then you need to ... change the receiver or improve it (I wrote more than once) because otherwise, even with a good antenna installation, it will receive interference "shorter path".
  • #17 6827500
    rozpuszczalnik
    Level 17  
    Good show, all Aems, except 211, 203A. Bomis. none work in the FM input circuits. See you on the stock exchange. And when you come back, watch out for the radars. You .....


    The post was reported.
    Please write all personal explanations only on PW .

    Regulations point 4 . [SP5ANJ]
  • #19 6827960
    fluger
    Level 16  
    Or maybe if you have a cable cable, connect this antenna cable to the cable cable and it will work raspberry, I did it myself. Only there are other frequencies.
  • #20 6828045
    patryk pensko
    Level 10  
    As my colleague suggests above, my reception improves when I wrap the antenna-cable around a coaxial cable or a cable or a regular TV antenna. In my case, it helped to wrap the cable around a metal pipe from the central heating. :)
  • #21 6828288
    rozpuszczalnik
    Level 17  
    I understand, the drug known from the "nine". Kdwzo, did you try?
  • #22 6828996
    toszk
    Level 10  
    Thanks for all the answers. I will test your ideas and let you know how with the effects.

    My block is in some radio hole - even when driving a car three of them can creak, which has not happened to me anywhere in Warsaw (in the car).

    In addition, an insurgent radio broadcasts from the building on different frequencies. In fact, I do not know if it is sowing, or if it is a problem with the selectivity of my receiver ... In any case, sometimes on different frequency ranges you can listen to insurgent songs: - /

    Nothing is ... As I wrote, I will contact you after the tests.

    greetings
    Tom
  • #23 6829871
    SP5ANJ
    Rest in Peace
    toszk wrote:
    In addition, an insurgent radio broadcasts from the building on different frequencies. In fact, I do not know if it is sowing, or if it is a problem with the selectivity of my receiver ... In any case, sometimes on different frequency ranges you can listen to insurgent songs: - /


    Report this fact to UKE and the gentlemen will do what they need to do with this "alleged Pirate". :D


    Greetings.
  • #24 6829973
    toszk
    Level 10  
    SP5ANJ wrote:
    Report this fact to UKE and the gentlemen will do what they need to do with this "alleged Pirate". :D


    It's not a pirate (I think) - it's Radio Jutrzenka (99.5MHz) ...
    I even found it on the net regrets about it .
    In fact, I haven't heard them for a long time, but if they repeat, I will report the matter to UKE.
  • #25 15454389
    _MST_
    Level 14  
    I reheat the topic. I have the same need.

    The Philips AJ3116 / 91 clock radio (http://www.philips.pl/cp/AJ3116_91/radiobudzik-z-cyfrowym-strojeniu) with a permanently installed wire as an antenna. I would like to improve his reception of radio stations, because wherever there is a problem, even RMF FM.

    I have two FM antennas with an amplifier:

    Sonus FM with 0-18db regulated amplifier
    http://www.dipol.com.pl/pokojowa_antena_radiowa_ze_wzmarzenia_sonus_fm_A0240.htm

    FZ 11 (Telmor distribution) with adjustable amplifier 0-25db
    http://tels.pl/pl/?option=com_virtuemart&view...emart_category_id=2&virtuemart_product_id=438

    The latter is supposed to be the successor of the antenna:
    Telmor 6442A
    http://tels.pl/pl/component/virtuemart/anteny...a-radiowa-pokojowa-6442a-telmor-2-detail.html

    I assembled the antenna socket in accordance with the guidelines of the article from my colleague Ptolek, which you can also read here on the last page:
    https://archive.org/details/Radioelektronik91997

    Effect?

    After setting up a radio station that makes a little hum, and then connecting it to the antenna socket, the signal hisses even more in the case of both antennas. It works best with the amplifier turned off, which is the same as disconnecting the antenna.

    So hopeless. I used 2 4.7nF capacitors. I wonder if the problem is not related to the fact that this is an article from 1977, i.e. before the change of the radio band 88-108Mhz, hence maybe the capacitors are selected so that they worked well in the old 66-73MHz band, which was valid until 1 January 2000

    What do you think about it?
    Is there any chance to connect such an external antenna, or maybe it makes no sense at all?

    The antennas themselves generally work. I connected to the tower with a built-in 75 Ohm antenna input and there are no miracles, but at least they do not deteriorate the reception.

    Or maybe try to connect the antenna without these capacitors (short-circuit them). What can happen?

    Moderated By c2h5oh:

    regulations, point 3.1.19. Do not send messages on archival topics if this is another question, in particular other than the questioning person. Out of respect for the questioner, create your own topic. You can only add a solution to the problem.

Topic summary

The discussion revolves around improving FM reception for the Grundig Sonoclock 660 clock radio in Warsaw, where the user experiences issues receiving certain stations. Suggestions include extending the existing antenna cable to 1-1.5 meters and positioning it outside the apartment for better reception. Other recommendations involve using an external antenna, modifying the radio to add an antenna socket, or experimenting with the placement of the radio to avoid interference from walls. Some users caution against altering the radio's internal components without proper knowledge, while others share personal experiences of enhancing reception by wrapping the antenna cable around metal objects. The conversation also touches on the presence of a local radio station causing interference.
Summary generated by the language model.
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