[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Re:Number of hams worldwide?



>...that means 1 in 1000 people that could be hams are.

I've always used the number of 1 in 500 in the USA

This means when you are driving down the interstate,
you pass another ham on average about once every
10 minutes.  BUT you can go all day and not get a QSO.

and just listening to "52" never works unless you are 
calling CQ every 2 minutes because of  your relative
140 MPH crossing speed and the short range of direct
comms.

This is why APRS-Voice-Alert works so well.  Its an
automatic Proximity Radar that will always alert you to
another APRS-Voice Alert station in range.  Voice
Alert is nothing more than setting CTCSS-100 on
the North Americal APRS frequency of 144.39 that is
in use everywhere.

Of course that frequency is wall-to-wall packets from 
digipeaters, BUT NONE OF THEM ARE USING PL-100
except the other mobile APRS-Voice-Alert stations, who
just so happen to be also LISTENING for voice calls
with CTCSS-100.  So no-one hears anything on the channel
unless they are SIMPLEX range to another APRS-Voice-Alert
station.  Then in a crossing situation they may hear  at most
two or three once-a-minute  "braps" which alerts them to:

1) Another HAM in range LISTENING with CTCSS-100
2) You KNOW he has the radio on and is listening
3) You KNOW he is in range
4) You KNOW he is looking for a QSO
5) Bingo, instant QSO for the 3 or 4 minutes you are in range.

Believe me, it sure beats 52.  And EVERY APRS operator
is on 144.39 so there is no ambiguity.  So even if you are 
not a user of APRS, but are on a LONG drive and get 
tired of hearing nothing on "52".  Then simply QSY your
voice rig to 144.39 and set CTCSS-100.   All the packets
will be silenced and you wont hear anything.  But if you
DO hear a packet, then it is from soneone else who 
IS LISTENING for a voice call!

Of course, onnce you make contact, then QSY to "52" 
so that you dont have to fight all those packets!

de Wb4APR, Bob

which is 
----
Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home