Hello Brian,
we do have smart drivers for the latching relays done with the tiny
microcontroller.
Yuor specific requirements require just the double pair of drivers for the
relay in question and a slight modification of the code.
will let u know,
brgds,
Adam, 9A4QV
http://croatia-microwave.blogspot.com/
I know I am pushing past the limits (slightly), but I have 2 x 144LFA12 and 4 30 ele 70cm LFAs on my G5500. So far it's made it through the winter, and quite a few big wind storms. I will be adding another 2 this spring but will be chaning the rotor at the same time, so I can use the rotor for my 1296 dish.
Paul,
kg7hf
Message: 2
Date: Sun, 31 Mar 2013 22:56:36 -0800
From: Edward R Cole
Subject: Re: [Moon-Net] What 4x9 elements antenna choose?
To: Chuck Smallhouse , ggreene(a)w2zv.com, Loren
Moline WA7SKT , Chuck Smallhouse
, Moon-net(a)mailman.pe1itr.com, Juan Antonio
Message-ID: <201304010656.r316uaRk061994(a)denali.acsalaska.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Might also consider two of the 144LFA11 15.29 dBi (two = 18
dBi). They are 20-feet long but two should be supportable by a G5500
rotator. With at least 600w this would be a very good eme starter,
then if one wanted to expand to a 4x array you would have 21 dBi gain
(essentially equal to what I run).
Four might push the mechanical limits of the G5500, so one should
consider an upgrade for rotators in that case. But starting out with
two and progressing up to four is a viable approach to starting out on 2m eme.
This would not provide dual-polarity that the M2-2mxpol20 has, but
the xpol20 are heavier and I would not recommend more than two with
the G5500 (and that may be pushing things).
EAntenna is available in Europe which would simplify things for
Juan. LFA design has been favorably reviewed in Dubus Magazine.
73, Ed - KL7UW
Juan Antonio,
My understanding is that a G5500 is not strong enough to handle a 4x antenna system, sorry. I do not know about the other antennas you mentioned, but a 4x2M9SSB has works very well for me.
@ Chuck - I can hear my echos with no problem, running 4x2M9SSB and a kilowatt. The 2M9SSB is designed for max gain and best SWR at the low end of the 2m band.
73, Bill NZ5N
>I am in the crossroads, I have the intention of installing a set of 4x9
>elements with no more of 5.0 meters boom long, because I would like to take
>advantage of my G5500 rotor.
>
>********************************
>
>Be certain that the yagis that you choose have their maximum gain at
>your frequency of interest.- not certain about the M2 2M9SSB.
>
>With these short antennas, you will seldom, if ever, hear your own
>echoes - even with large TX power.
>
>GL es 73,
>
>Chuck, W7CS
>
>
>
>
