[amsat-bb] Rotor inquiry

[Hasan al-Basri]

Roy,
I can't tell you how much I enjoyed our many contacts on the various birds
over the years! I was an avid user of your HP-41C card reader program!

I just got back into sats after a multi-year absence and in that time, mice
chewed thru my az/el rotor cables, so since I already had an M2 Eggbeater
for 2m on the ground level cross bar (only up 7'), I added a 70cm Eggbeater.

If you still want to work the birds, all the following are very easy 70cm
up 2m down birds:

CAS-4A (linear)
CAS-4B (linear)
XW-2A, 2B, 2C, (Linear) I don't use 2D or 2F  as I have found them to be
poor performers)

...and unlike the early days of sats where he had to use cavity and
high/low pass filters that were not available, now it is a simple matter of
using a pair of 2m/70cm duplexers, which do a GREAT job of isolating the 2m
and 70mc downlink/uplink. No desense at all, no intermod at all.

If the antennas are in the clear 20w its good. If there are obstructions
then an amp helps a LOT. I use an amp of about 70 w because I have the
house and lots of vegetation losses, which as you are well aware just kills
70cm uplink.

If I had to climb a tower, I'd be off sats, but with these simple
eggbeaters and a solid state amp, all the above birds are easy with nothing
more than a short step ladder, if even that.

73, N0AN
Hasan


On Mon, Jan 21, 2019 at 6:47 PM Roy <rdwelch at swbell.net> wrote:

> Due to age and physical limitations I have not been able to keep up to
> date with the maintenance requirements on my satellite antennas and
> rotators.  As a result I have given the roof top equipment to another
> future satellite user.  My rotators were an Emotator  EV-800DX AZ/El unit.
> The El Rotor has a problem in need of parts.  The Japanese company doesn't
> send individual parts it seems and recommends sending the rotor back to
> them for repair.  The guy I gave the unit to is very competent with
> mechanical repairs.  He is wanting to find someone with a similar rotor
> which is only good for parts that he can scavenge.  If anyone knows of a
> source of parts for this rotator, please let me know so I can help him
> repair it.  The motor is OK.  The problem is in the gear train.
>
> I have missed being able to be on the satellites the past couple of years
> but climbing on the roof at age 88 has been put to an end.  And to think I
> got within six contacts of getting that satellite DXCC certificate many
> years ago.  Best wishes to all the guys I used to hangout with on AO6, AO7,
> AO10 and the UO22 Satgate gang.
>
> 73,
> Roy -- W0SL (ex W5SLL)
>
> Sent from my iPad
> R/D/Gd/Ggd
>
>
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>