ad: rfparts

70 cm simplex frequencies

Discussion in 'General Technical Questions and Answers' started by N8RCI, Sep 16, 2003.

Thread Status:
Not open for further replies.
  1. N8RCI

    N8RCI Ham Member

    I would like to ask for some help specifically from hams in the northeastern part of Ohio. A friend of mine would like to be able to talk simplex on 440 and the bandplan is useless for this question (other than specifying 446.00MHz as the national simplex calling freq)
    Can someone tell me what the acceptable simplex frequencies are on 70cm in the northeast Ohio area? All the bandplan says is that frequencies between 445.00-447.00 are useable as long as there isn't a repeater using that output in your area.
    Thanks very much in advance. [​IMG]
    n8rci
     
  2. KG4UDX

    KG4UDX Ham Member

    The SERA bandplan (the coordinating body for the southeast, not including Ohio [which isn't in the southeast of course]) specifies the following 70cm FM simplex frequencies

    445.9125   445.9250   445.9375   445.9500   445.9625   445.9750   445.9875   446.0000
    446.0125   446.0250   446.0375   446.0500   446.0625   446.0750   446.0875   446.1000
    446.1125   446.1250   446.1375   446.1500   446.1625   446.1750

    I expect that those (especially the ones near 446.0) are probably clear in Ohio as well.
     
  3. K9STH

    K9STH Ham Member

    446.000 MHz is the "national FM calling frequency" and probably should be tried first. There just usually isn't that much activity on 70 cm FM simplex and thus most, if not all, of the other frequencies are not going to be monitored. As for moving a QSO from the calling frequency, then the 25 KHz channel steps are the most used.

    Of course SSB and CW have different calling frequencies.

    Glen, K9STH
     
  4. KC8QMU

    KC8QMU Ham Member

    Sixmeters,

    I am too in northeast Ohio. I am in Hubbard, 1 Mi from the Penn Ohio line and just a couple miles out of Youngstown. I hear very little on 440 simplex. Actually, the 440 repeaters we have locally are very underutilized.
    If anything try 446.000 or a scan of the band. If you want to run a few tests and have a good location and antennas, come to 147.515 simplex. There are quite a few of us in the Youngstown Oh/ Sharon PA area that operate on this frequency, and a few of us sit on hilltops. Come check us out some night. We'd be more than happy to have you join us!
     
  5. KE4PJW

    KE4PJW Ham Member

    Do not use 445.975 in Ohio. Someone thought it was a good idea to put their wide area repeater's link frequency 1 full channel away from the national FM calling frequency, WITHOUT PL no less. Anyway, you might have trouble if you use that frequency.
     
  6. N5CTI

    N5CTI Ham Member

    If you monitor 445.975 MHz and don't hear anything after a while, why not go ahead and use it? There may not be any interference, and anyway, don't we all have equal rights to any frequency (within license class limits, of course)?
     
  7. KE4PJW

    KE4PJW Ham Member

    </span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (N5CTI @ Sep. 16 2003,10:53)</td></tr><tr><td id="QUOTE">If you monitor 445.975 MHz and don't hear anything after a while, why not go ahead and use it? There may not be any interference, and anyway, don't we all have equal rights to any frequency (within license class limits, of course)?[/QUOTE]<span id='postcolor'>
    I guess you could, but keep in mind that you would be heard on the output of the linked repeaters.
     
  8. N5CTI

    N5CTI Ham Member

    Good point, but it seems to me that link frequencies should be documented somewhere, so folks don't have to find out about it by word-of-mouth. Also, if the traffic on the linked repeaters is so low-volume that you don't hear anything after monitoring for a while, seems like they're unnecessarily eating up bandwidth.

    Not really expecting a resolution here, merely observing and thinking about it.
     
Thread Status:
Not open for further replies.

Share This Page

ad: dxeng