I've been enjoying the posts regarding our last HEO satellite, AO-40. I was inactive while AO-40 was going strong, but the posts brought back memories of our first HEO, OSCAR 10, my first experience with satellites until a couple of years ago. You can't find much about the glory days of AO-10 on the web, but I remember them well.
Passes lasted for 8 hours. Always Q5 copy everywhere in the huge footprint, very little QRM or QRN. I worked over 100 countries from 1983-85, but never got enough cards for DXCC. My rig was a Yaesu FT-726R with a Mirage D-1010 amp. It was 70cm uplink, 2 meters downlink. I attached the antennas to a small mast on my chimney. I had a surplus cavity bandpass filter that wiped away all the birdies; it was needed because I lived in EL49 in New Orleans. The antennas were small crossed-yagis (KLM?), circularly polarized, on separate booms. I can't recall the make or model. Also must have had a mast-mounted preamp and an az-el rotator, but I can't remember them. I got the tracking info from a program that ran on my Commodore 64 and printed it out on my Gorilla Banana printer.
Those were halycon days, with AO-10 supposed to be just the beginning. The grand plan was to put up 3 linked ham sats in geosynchronous orbit, which would enable any ham to work any other ham anywhere on the globe 24-7. Will we ever see anything like that again? How did AO-10 compare with AO-40?
There was a fire at my home and all my logs and QSL cards from those days were lost. If anyone out there happens to have an old AO-10 QSL card from me, I'd sure appreciate a copy.
73, Bill NZ5N
At 03:08 PM 2/5/2011, Bill Dzurilla wrote:
I've been enjoying the posts regarding our last HEO satellite, AO-40. I was inactive while AO-40 was going strong, but the posts brought back memories of our first HEO, OSCAR 10, my first experience with satellites until a couple of years ago. You can't find much about the glory days of AO-10 on the web, but I remember them well.
Passes lasted for 8 hours. Always Q5 copy everywhere in the huge footprint, very little QRM or QRN. I worked over 100 countries from 1983-85, but never got enough cards for DXCC. My rig was a Yaesu FT-726R with a Mirage D-1010 amp. It was 70cm uplink, 2 meters downlink. I attached the antennas to a small mast on my chimney. I had a surplus cavity bandpass filter that wiped away all the birdies; it was needed because I lived in EL49 in New Orleans. The antennas were small crossed-yagis (KLM?), circularly polarized, on separate booms. I can't recall the make or model. Also must have had a mast-mounted preamp and an az-el rotator, but I can't remember them. I got the tracking info from a program that ran on my Commodore 64 and printed it out on my Gorilla Banana printer.
Those were halycon days, with AO-10 supposed to be just the beginning. The grand plan was to put up 3 linked ham sats in geosynchronous orbit, which would enable any ham to work any other ham anywhere on the globe 24-7. Will we ever see anything like that again? How did AO-10 compare with AO-40?
There was a fire at my home and all my logs and QSL cards from those days were lost. If anyone out there happens to have an old AO-10 QSL card from me, I'd sure appreciate a copy.
73, Bill NZ5N
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AO-10 in the mid-1980's was my first real satellite operation (I had been involved with AO-6). It was the basic mode-B linear transponder. Great range and lots of DX. I worked some rare DX that was rare on HF standards. The hams I worked said they were tired of the pileups on HF and came up on AO-10 to enjoy some nice contacts.
P3E inherits the legacy of AO-10 and AO-13, as it is very similar in what it is equipped to do. ARISSat-1 will be a precurser for what P3E would be without the high orbit.
73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw*, 432-100w*, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubususa@hotmail.com ====================================== *temp not in service
participants (2)
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Bill Dzurilla -
Edward R. Cole