[amsat-bb] AO-7 Mode A

[Joe]

very similar, 15 was open like once a month.

Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 6/10/2017 9:48 PM, Greg D wrote:
> Any recollection on where we were in the sunspot cycle then vs now?
> That could affect both the noise floor as well as the signal itself on HF.
>
> Greg  KO6TH
>
>
> John Geiger wrote:
>> The noise floor was probably a lot less back then, no switching wall-warts
>> on every device.
>>
>> 73 John AF5CC
>>
>> On Sat, Jun 10, 2017 at 11:26 PM, Joe <nss at mwt.net> wrote:
>>
>>> I just played with it some when the Mode "A" was predictable a few months
>>> ago. And from what I remember in like 1976 it seemed a LOT stronger back
>>> then. Nothing special a 10 meter dipole and Drake TR-4 for the receiver
>>> back then.
>>>
>>> Joe WB9SBD
>>> Sig
>>> The Original Rolling Ball Clock
>>> Idle Tyme
>>> Idle-Tyme.com
>>> http://www.idle-tyme.com
>>> On 6/10/2017 6:02 PM, rsoifer1 at aol.com wrote:
>>>
>>>> It's about an S-unit weaker.
>>>>
>>>> 73 Ray W2RS
>>>>
>>>> -----Original Message-----
>>>> From: Joe <nss at mwt.net>
>>>> Ts o: rsoifer1 <rsoifer1 at aol.com>; gzook <gzook at yahoo.com>; amsat-bb <
>>>> amsat-bb at amsat.org>
>>>> Sent: Sat, Jun 10, 2017 1:09 pm
>>>> Subject: Re: [amsat-bb] AO-7 Mode A
>>>>
>>>> How does it compare now to back then signal strength wise?
>>>> Joe WB9SBD
>>>>
>>>> The Original Rolling Ball Clock
>>>> Idle Tyme
>>>> Idle-Tyme.com
>>>> http://www.idle-tyme.com
>>>> On 6/10/2017 3:04 PM, rsoifer1--- via AMSAT-BB wrote:
>>>>
>>>>      Hi Glen,
>>>>
>>>>
>>>>      I remember working you with that set-up.
>>>>
>>>>
>>>>      73 Ray W2RS
>>>>
>>>>
>>>>
>>>>      -----Original Message-----
>>>>      From: Glen Zook<gzook at yahoo.com> <mailto:gzook at yahoo.com>
>>>>      To: rsoifer1<rsoifer1 at aol.com> <mailto:rsoifer1 at aol.com>; amsat-bb<
>>>> amsat-bb at amsat.org> <mailto:amsat-bb at amsat.org>
>>>>      Sent: Sat, Jun 10, 2017 12:41 pm
>>>>      Subject: Re: [amsat-bb] AO-7 Mode A
>>>>
>>>>
>>>>
>>>>      In the "goode olde dayes", when AO-7 was new (and also Oscar VI), I
>>>> used to use a 2-element 10-meter beam mounted below a 7-element 2-meter
>>>> Yagi elevated about 45-degrees.  Later, added a 70 cm beam with the 2-meter
>>>> beam on an az-el mount with a TV rotor for the elevation.
>>>>
>>>>            Glen, K9STH
>>>>      Amsat 239 / LM 463
>>>>      Website:http://k9sth.net
>>>>
>>>>
>>>>
>>>>                                  From: rsoifer1--- via AMSAT-BB<
>>>> amsat-bb at amsat.org> <mailto:amsat-bb at amsat.org>
>>>>        To:amsat-bb at amsat.org <mailto:amsat-bb at amsat.org>        Sent:
>>>> Saturday, June 10, 2017 2:22 PM
>>>>        Subject: [amsat-bb] AO-7 Mode A
>>>>
>>>>
>>>>      Mode A has always been weaker than Mode B, but with a decent 10-meter
>>>> antenna it is quite usable.  Many operators access Mode B with a 2-meter
>>>> beam of some sort, then try to hear Mode A with a dipole or ground-mounted
>>>> vertical , then complain that they cannot hear it.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>      There is no substitute for a good 10-meter beam.  A tri-bander
>>>> usually works too, but check the tuning to see that the SWR isn't too high
>>>> at 29.5 MHz.  If it is, you may have to re-tune it or even shorten the
>>>> elements slightly.  If you absolutely cannot put up a beam, your second
>>>> choice can be a 10-meter ground plane, elevated so it is mounted in the
>>>> clear.  It has no forward gain of course, but it will give you a low
>>>> radiation angle, which will help in hearing AO-7 when it is at low
>>>> elevation which it is most of the time.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>      With Field Day coming up, a little attention now to your 10-meter
>>>> antenna will show up in your results later.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>>
>>>>
>>>>
>>>>
>>> _______________________________________________
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>>> to all interested persons worldwide without requiring membership. Opinions
>>> expressed
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>>> AMSAT-NA.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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>>>
>> _______________________________________________
>> 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
>
>
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