Bob W7LRD
I came across this info, might be of some value.
Ref: The Satellite Experimenters Handbook, Pg 9-6
Max Dist (range) = 2R * arcos [R/(R+h)]
Where R = 6,371 km and
h = 1,459 km at Apogee (AO-7)
h = 1,440 km at Perigee (AO-7)
Therefore the maximum possible communication distance via
I'll be on from the EL17 / EL18 line tomorrow (Friday) on two SO50 passes
(local AOS at 26/1840Z and 26/2022Z) as well as AO27 which switches to VOX at
26/1957Z.
We're taking Saturday off, but I'll operate from the EL28 / EL29 line on Sunday
on the four AO27 and SO50 passes between 28/1800-205
Hello (again)
Disragard my 910 question. I actually read the manual, where is says hold the
p. amp/att button for one second. I'll go back in my corner now.
73 Bob W7LRD
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Hello 910 owners
I am trying to get my AG-25 preamp running. In the set mode- I set the pre 144
to on. Should I then be able to measure 12v at the 2M antenna output to run
the preamp? I get nothing.
73 Bob W7LRD
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Congratulations Bob and Paul!
This is an outstanding accomplishement - regardless of any record - and yet
another example of why so many of us think so much of Grand Old AO-7.
73,
Tim - N3TL
From: Bob- W7LRD
To: AMSAT-bb@amsat.org
Sent: Thu, February 25, 20
At 05:07 PM 2/25/2010 +, Bob- W7LRD wrote:
>Hello Is there a "easy" way of figuring out where/when a given apogee will
>at a given lat.long? I want to try to predetermine when the apogee will
>be on AO-7 to favor the northern hemisphere. To "maybe" help in dx
>contacts. The difference
At 09:51 PM 2/25/2010 +, paul robinson wrote:
>To night at abt 9.17 gmt on AO7 , mode B Bob W7LRD and myself confirmed
>working each other ,exchanged reports etc and was very workable below 0.3
>deg ! althrough not a record cn87 to io92bx works out to be 7504.52 km
>distance but may well
To night at abt 9.17 gmt on AO7 , mode B Bob W7LRD and myself confirmed
working each other ,exchanged reports etc and was very workable below 0.3 deg !
althrough not a record cn87 to io92bx works out to be 7504.52 km distance but
may well be a United Kingdom A07 record?? thanks Bob and thanks
Congratulations Bob! Success is sweet and I see you have already found a
new mountain to conquer, hihi.
73
David
K6CDW
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Bob- W7LRD
Sent: Thursday, February 25, 2010 1:39 PM
To: AMSAT-bb@am
We have been trying many weeks to have a simple QSO, with several near misses.
At 2120Z via AO-7 I got a, "you are 5/1 here". At 7504 km not a record, but a
real fun effort. Next is Eric-PA1TNO, I may have to go portable on a nearby
mountain.
73 Bob W7LRD
CN87
__
At 05:07 PM 2/25/2010 +, Bob- W7LRD wrote:
>Hello Is there a "easy" way of figuring out where/when a given apogee will
>at a given lat.long? I want to try to predetermine when the apogee will
>be on AO-7 to favor the northern hemisphere. To "maybe" help in dx
>contacts. The difference
If someone personally knows either Alan Kung, BA1DU or Shaomin Fan, BA1EO,
would you please write me off-list for a personal inquiry?
Many thanks.
Clint Bradford, K6LCS
909-241-7666
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Dear AMSAT-BB Readers,
Please find here below the message I am sending out in these days to known
Developers of smallsats.
Should you be part, or be aware of ongoing projects please contact me and
forward freely. TU
"Our Company has been asked to forecast the number of nanosats (1-10 kg)
It's time for another College Satellite night! We hope to see you on the
birds Thursday evening March 4th from 22:00 UTC to 0500 UTC. College
Satellite nights are a monthly event held the first Thursday of the month.
Mark your calendar and spread the word to college hams/club stations that
you kn
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