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8181Re: [wsjtgroup] Where best to monitor ?

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  • Randy Tipton
    Mar 2, 2011
      Good information Russ. During contests with random contacts, I continue calling the cqing station who is known to be making a contact or sometimes if I knew pings would be easily heard by the receiving station I would wait and start calling when the contact progressed to Roger + Reports or RRR's .  If the contact was over say 1200 miles were fewer pings were going to be heard and calling earlier seems to work better but shorter distances where numerous pings should be heard, starting at the rogers seems to work well.
      For those who remember random hour when most stations used the call frequency with tagged messages you could observe several contacts all sharing the same frequency. This was the norm for an activity period and offset calling was encouraged at other times. In fact several made contacts where two stations were worked at once. This would all seem to support what Russ is stating. Saturday / Sunday mornings are great times to experiment during random hour.
      If I "need" the contact for awards or for dx miles (over 1200 miles) I prefer a schedule to secure the contact but for normal operating I much prefer to call or monitor the calling frequency. However as Bill has stated in reality most contacts are via schedules. Thus we should be ready to promote both schedules and randoms. Most mornings announcing your QRV on PJ plus calling CQ will reward you with a few contacts.
      Thanks Bill & Russ for starting this dialog.
      my 2 cents ...

      ----- Original Message -----
      Sent: Wednesday, March 02, 2011 9:58 AM
      Subject: RE: [wsjtgroup] Where best to monitor ?

      Hi Don. I'd caution that not everyone may feel the same way I do about that.  I have noticed a number of stations who also ask people to keep calling while they are working someone, so it is by no means just me.  But there may be cases where it is not advisable.  For instance if the other caller is your neighbor.  In that case the station  you are trying to work will hear you both at once.  It is geography that makes it so that you both are not heard at the same time.  I have observed up to a second or two delay in hearing the same burn as a station only 40 miles away heard it, but sometimes there was no delay.  If the other caller is over 100 miles away I would think it safe to assume that you would not interfere much.
      The main mechanism by which the called station does not hear multiple callers at the same time is due to the specular nature of the reflections.  Suppose you are calling a station on an east-west path, and another station 100 miles north of you is also calling him.  When you get a burst that the called station can hear, the azimuth angle to the burn for the other caller will be different, putting his reflection south of the called station.  When he gets a burst that will work for him, your reflection would be north of the intended destination.
      In case you were both trying to work a station that is due south, a burst that provides reflection of the correct distance for you, will be at a lower elevation for your neighbor, and so his reflection will overshoot the called station, etc.   (Burns near the horizon provide a longer path.)
      So, using this information it is possible to gauge whether coexistence on the same frequency as another caller is reasonable.
      73, Russ K2TXB

      From: wsjtgroup@yahoogroups.com [mailto:wsjtgroup@yahoogroups.com] On Behalf Of donroden@...
      Sent: Wednesday, March 02, 2011 9:53 AM
      To: wsjtgroup@yahoogroups.com
      Subject: RE: [wsjtgroup] Where best to monitor ?


      Thanks to all that responded.
      Russ, I appreciate that tip. Being new to this, I would have just
      waited until you were through.

      Don W4DNR

      Quoting Russ K2TXB <k2txb@...>:

      > If I come on the split frequency but am calling someone else,
      > continue to call me throughout my contact with the other station.
      > It is likely that I will hear you and answer you as soon as I am
      > done with the other station. Don't worry about interfering; due to
      > the nature of MS it is unlikely that I will hear you both at once.
      > 73, Russ K2TXB

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