The AM Forum

Hi guys, many things happenend to me since my last visit.
I make my exam and I got my HAM license, now I am TI5MII.
Finally my Multi Elmac AF 68 reached to me and after a careful check and minor repairs the unit is on air.
But I was a little dissaponted because it looks like on this part of the continent nobody transmit in AM mode, yes there are a lot of people in USB and LSB but no AM so if is possible to arrange a meeting with some fellows in the 40 mts 7.100 Mhz tonight I will be QAP in that frequency between 1:00 and 2:00 UTC.
Thanks and 73's

Milton

In the US East coast, 7290 is the popular daytime hangout. Nightime 3885 allong with 1885. 29.000 whan the band is open, also 50.400...  In the US fone is not allowed below 7150 or 3750... If you are interested, the US Frequency allocations and bandplans are available for download on the ARRL.org website.   welcome aboard

Ok, I see.
well what type of antenna would be the most for this?
actually Im using a dipole.

Milton

A dipole can work quite well. Can you tell a little bit more about the dipole you are using ? How high is it off the ground ?? Is it a flat top or inverted vee or other design ?? What band is it cut for ? Whatkind of feed lines are you using ?

I have found (particularly on the low bands of 160, 80/75 and 40) that a flat top or inverted vee fed with open wire feed line and coupled to the transmitter via an old fashioned link coupled tuner works very well. Cut the antenna for the lowest band on which you are going to operate and use the tuner to match the antenna,  I've used an inverted vee cut for 75 fed with open wire line coupled with a Viking Matchbox and have had good luck with it on 75, 40, 20 and 10 meters.

There are other interesting and more elaborate type semi directional and directional arrays you can set  up as well. I'm sure some of the guys can help you with those designs.

All Frequencies in MHz

160 Meters: 1.885, 1.900, 1.945, 1.985, 1933 &1963 (in the UK)

80 Meters: 3.530, 3650 (South America), 3600 & 3625 (in the UK), 3705 (W. Europe)

75 Meters: 3.825, 3.870 (West Coast), 3.880, 3.885

40 Meters: 7.070 (Southern Europe), 7.120, 7.300 (South America) 7.175, 7.290, 7.295,  7143 (UK)

20 Meters: 14.286

17 Meters: 18.150

15 Meters: 21.285, 21.425

10 Meters: 29.000-29.200

6 Meters: 50.4 (generally), 50.250 Northern CO

2 Meters: 144.4 (Northwest)
                 144.425 (Massachusetts)
                 144.28 (NYC-Long Island)
144.45 (California) 

  http://www.amwindow.org/stuff.htm

Hi Milton,

You could call CQ AM phone in your band and let us know when you are listening on 7290khz.
No reason we can't crossband. The cornholilotesters do it all the time.

the thing to do is get on and make some "noise"..... klc

Thank you guys, you all really make me feel welcome.
Well my dipole is at 6 mt high from ground in inverted Vee, cut to 7.150 or 9.96 mt per side with RG 58 feedline.

thanks.

Milton

Canadians congregate on about  3725 Kc every night  starting at about 00:00 UTC  (7:00 PM Eastern time) Stations include:  VA3ES  VE6PG, VE3AJM,  VE3LVL, VA3NTH,  VE1BDC, VE3BRL, VE3NHP, VE3MAW and VE3BEE  amongst others.