[Mich VHF UHF Society] 10 GHz Beacon

Mon Jan 10 16:23:59 CST 2022

I'll run a test on the lash up. I have in the past measured sufficient
drive (via a box that you helped me calibrate).

Chuck w8mqw

On Mon, Jan 10, 2022 at 4:49 PM Gedas <w8bya at mchsi.com> wrote:

> Chuck do you have an accurate power meter for 10 GHz that you trust? My
> problem is I have 3-4 different heads for my 437 meter and all 3-4 read
> differently. Between all of them they are within 2-3 dB but it irks me to
> death not knowing exactly what the real power level is. I used to trust my
> Agilent 26 GHz SA but it reads off from all the heads too and trust it the
> least now for some reason. I need to find a known source or find someone
> with a known head/meter at 10 GHz.
>
> Kinda like the guy with two watches not knowing the real time whereas the
> guy with one does hi-hi.
>
> One thing you need to know abt the Ukrainian beacon board.....their PO
> varies greatly with supply voltage. I can find the post if you like but
> there was a notable difference between 5.0 VDC and 5.3 VDC when I was
> testing mine.
>
> I said my beacon board put out abt 8 dBm but using another head I can
> measure close to 11 dBm so maybe I can drive one directly and get the 2W
> out.
> Or maybe I should just save up for a new 3W DEMI and not use this very,
> very old 2W DEMI that needs abt 50mW. Even Steve at DEMI does not have much
> info on this early model. And unfortunately my sig gen max's out at around
> +12 dBm.
>
> Gedas, W8BYA EN70JT
>
> Gallery at http://w8bya.com
> Light travels faster than sound....
> This is why some people appear bright until you hear them speak.
>
> On 1/10/2022 4:20 PM, Chuck MacCluer wrote:
>
> Gedas:
>
> The Downeast 3-watter is nominally drivable by 10 dBm, which I think I
> have from the VHFdesign board.
> Will see.
>
> P.S. Is anybody interested in hosting my (built) (30-W) 1296 beacon? My
> location is hopeless for it.
>
> My quite effective 144.288 beacon is shut down until tropo season returns.
>
> Chuck w8mqw
>
>
>
> On Mon, Jan 10, 2022 at 3:58 PM David DeVos via MiVUS <mivus at mivus.org>
> wrote:
>
>> Hi Chuck,
>>
>> Fellow MSU grad here, and alumni of the MSU radio club in 1977!  A better
>> spot would be at Mark's house WB8TGY which is at a higher altitude!
>>
>> Dave DeVos - KF8QL EN72ew
>> 616-278-8068 - mobile
>>
>>
>>
>> On Monday, January 10, 2022, 03:49:22 PM EST, Chuck MacCluer <
>> maccluer13 at gmail.com> wrote:
>>
>>
>> Gedas:
>>
>> I now have all the components for a 3-watt beacon (slot, amp, exciter)
>> but have not boxed it up. I'm trying to think of a location.
>>
>> Here on the farm is a nonstarter since I'm hopelessly treed in. Maybe I
>> can talk the Mich State Univ AR Club into putting it on the roof of the
>> engineering building. They mounted a 1296 beacon of mine there for years.
>>
>> There is also a nearby ham with an ideal location on a hill overlooking
>> open farmland to the south. Beautiful clear shot.
>>
>> I'll keep you informed.
>>
>> Chuck w8mqw
>>
>>
>>
>> On Mon, Jan 10, 2022 at 2:54 PM Gedas <w8bya at mchsi.com> wrote:
>>
>> Hi Dave. I am so sorry to hear about the beacons being down. But I like
>> that you have plans to get them operational again. Beacons are so, so
>> important as you know, esp on the higher frequencies. This latest batch of
>> post on the Midwest group has made me decide to design up a
>> monitoring/recording station starting on 10 GHz. Your beacon and Jim's
>> (N8CEI) are the only two possibilities for me. Unfortunately Jim's beacon
>> is down as well and he is not eager to climb the 125' tower during the
>> winter. I was going to park the dish aimed at your beacon and start
>> recording long term FS levels. I think it would be fascinating to see the
>> effects local WX has on the received beacon levels.
>>
>> I continue to work on my beacon effort and I hope to have one up and
>> running on ".350" by late spring. I just need to find an intermediate
>> amplifier to take me from ~8 dBm up to 15 dBm to drive this very old 2W
>> DEMI that I have.
>>
>> Thank you again for all you do and for all your help......stay safe es 73
>>
>> Gedas, W8BYA EN70JT
>>
>> Gallery at http://w8bya.com
>> Light travels faster than sound....
>> This is why some people appear bright until you hear them speak.
>>
>> On 1/10/2022 2:23 PM, David DeVos via MiVUS wrote:
>>
>> Hello Gedas and Happy New Year!
>>
>> Unfortunately, it went down in December, and I have to climb a tower to
>> fix it.  So that's not going to happen until this coming Spring.  All (4)
>> bands at that location (1.2, 2.3, 5.7, and 10) are on the same power
>> supply, and automated keyer and they are all down.  So that narrows down
>> the problem a bit.
>>
>> I have moved to a new QTH that is more urban, so all my microwave
>> adventures are going to be done while roving.  I remain committed to being
>> active, but there is very little VHF/UHF/Microwave activity on the West
>> side of Michigan to speak of other than K2YAZ up in Glen Arbor.
>>
>> 73 and stay active - you are an inspiration!
>>
>> Dave DeVos - KF8QL
>> 616-278-8068 - mobile
>>
>>
>>
>> On Monday, January 10, 2022, 12:01:27 PM EST, Gedas <w8bya at mchsi.com>
>> <w8bya at mchsi.com> wrote:
>>
>>
>> Hi Dave. Can you please tell me if the Grand rapids 10 GHz beacon is
>> still operating and if so what is it's current freq? Since the Cinci beacon
>> died the only other beacon I might be able to hear under some enhancement
>> is Grand Rapids. I want to do some long term signal plotting of it. TU es 73
>>
>> --
>> Gedas, W8BYA EN70JT
>>
>> Gallery at http://w8bya.com
>> Light travels faster than sound....
>> This is why some people appear bright until you hear them speak.
>>
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