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- Yaesu-FT-60
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Re: satellite ops
Bill Boyer
¿ªÔÆÌåÓýI am about 80% done on one for a balloon project using an Arduino Uno, an Argent Data Radio Shield and a $28 2-watt Chinese HT. Should be good for 12-15 hours using an 1,100 mAh LiPO battery for the Arduino power.? ?? ? ? ? This message was delivered by flying monkeys!On May 26, 2014, at 11:45, "'Gil Smith' gil@... [FT-60]" <FT-60@...> wrote:
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Re: satellite ops
Gil Smith
Well, aprs proved to be darned handy for my balloon flights. ?Used a byonics freq-agile transmitter to tx both on .390 and a quiet channel. ?I want to try something remote like an solar-powered weather station or a boat at sea. ?Out in the middle of nowhere where digis can't hear, I could tx on a sat freq if I can hit it. ?If I can't track at the remote site, and just use a fixed antenna, I would at least need to program the days/times of view to tx a packet or two when the sat is overhead. ?Even getting one packet through every day or two would be useful. I would have a home station (hand-held at first, then maybe motor-driven) to receive and decode the aprs data from the iss/sat. ?Actually anybody could receive and decode it. ?I just take the audio out of the HT, split it to run to headphones and the audio-input of a laptop, and run the soundcard modem by UZ7HO. Just want to try something different and interesting. gil |
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New file uploaded to FT-60
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the FT-60 group. File : /CT44-PINOUT.jpg Uploaded by : k6lcs <clint@...> Description : Pinout of the CT-44 audio adapter cable, and the 4-conductor 3.5mm plug for our FT-60R speaker-mic jacks. You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, k6lcs <clint@...> |
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Re: satellite ops
When the ISS passes over me - and I am NOT set up for APRS - I can hear its bursts quite well with a Smiley 270A or other 17" whip on an HT. Well enough to actually use APRS? Darned near ...
OK - with that said - many use verticals that have been "tilted" 20 degrees or so to work FM birds. Not the best setup, but it certainly could work. Excuse me for asking - but what would be the purpose of sending packet/station info through ?the ISS from an unattended station? (Possible "naive mode ON" on my end ... the excitement for me for APRS and the ISS is actually being there to see it all occur ... (grin).) Clint |
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Re: satellite ops
Gil Smith
Hi Clint: I see. ?Well, if the iss or sat path prediction cannot be made too accurately for weeks or months ahead, that precludes an autonomous remote system from periodically tracking a pass to send an aprs update. ? Is there a chance of hitting it with a non-directional antenna (knowing at least the approximate time windows when the bird is in view)? ?Things like the SPOT seem to work just fine with a little patch antenna (much higher freq I presume, and likely more than one of their sats in view). ?Can 2m aprs possibly hit the sat with a vertical? ?Horiz dipole? ?Circ-polarized ant matching the polarity of the sat? ?TX power level needed? Any thoughts appreciated. ?thx, ?gil
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Re: Audio Output
¿ªÔÆÌåÓýEither Owen is shopping at the right place for the FT-60, or the wrong place for the CT-44. Jardy Dawson WA7JRD Ham Radio On May 25, 2014, at 6:14, "Keith keith.w_65@... [FT-60]" <FT-60@...> wrote:
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Re: Audio Output
¿ªÔÆÌåÓýWhere did you get the radio for under $34.00 ?
Jack, ae8p
On May 24, 2014, at 8:00 PM, robert_o_cook@... [FT-60] <FT-60@...> wrote: Wow, just checked the price of the ct-44 adapter. Half the price of the radio!? Not today?  Owen VK1OC QF44MS |
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Re: Audio Output
Dale Martin
¿ªÔÆÌåÓýGood grief! Where are you looking? Or how cheap was your radio? ? ? dale, kg5u ? ? From: FT-60@... [mailto:FT-60@...]
Sent: Saturday, May 24, 2014 7:00 PM To: FT-60@... Subject: [FT-60] Re: Audio Output ? ? Wow, just checked the price of the ct-44 adapter. Half the price of the radio!? ? Not today? ? ? Owen VK1OC QF44MS ? |
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Re: Audio Output
Jim K5JG
Are you sure?
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The US price for the radio is around $160 and the CT-44 is under $20 ($16.95 at HRO). You might want to check your dealer(s) again. 73, Jim K5JG robert_o_cook@... [FT-60] wrote: Wow, just checked the price of the ct-44 adapter. Half the price of the radio! Not today Owen |
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Re: Audio Output
Keith
It is for sale at universal-radio for $17.
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On 05/24/2014 05:00 PM, robert_o_cook@... [FT-60] wrote:
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Re: Audio Output
¿ªÔÆÌåÓýI used to use one of those "cassette adapters" that plugged into the 1/8" jack to run an iPod through the car audio. It DID work with my FT-51 and also my BC3000XLT handheld scanner. Made for really awesome audio.? |
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ISS Radio Usage
Larry Irrwin
I am probably ignorant but it seems to me that we don't need APRS
tracking transmissions from the ISS. With all the PC software and web satellite tracking services we know where the ISS is located. It makes more sense to me to leave it in FM repeater mode except when they have skeds with classrooms and such. Low power budget maybe? -- 73 Larry WB4HLX |
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Re: Satellite ops
Gil Smith
Hi Clint: Yes, I have been looking through , which is a great site, like your radio site.? Thanks for all the great info you provide. I also appreciate being able to post off-topic stuff here occasionally, like my balloon experiments (documented at ), since this is a great group of hams, and sheesh, I use my FT60 in all my projects anyway. You were asking about my yagi, which is a cheesy tape-measure standard design, but works well.? For a motorized tracker, I will likely make one from wood dowel and adhesive copper foil, as I did for my balloon triple-2m-dipole jack antenna, which is cheap, light, and easy to tune by cutting or adding a bit of foil.? I may get an arrow antenna, but they are a bit pricey. What I want to do is to send APRS data from a remote location (desert, valley, boat at sea...) that has no local aprs reception.? The tx antenna tracker would follow a sat when in view, the system would send some position and telemetry data (temperature...), and then wait for the next sat pass.? Yeah, there is an extra layer of complexity on a moving platform like a boat, but it is still feasible to track that out.? I would want a ground station at home tracking and receiving this as well, and gating it to the aprs net (if not done elsewhere). So I am just considering the feasibility of doing something on the ham bands, using the existing system. The other choices, would be to use a SPOT tracker, which has a subscription fee, but does have a large coverage map, and sends position and time data (I don't think any telemetry data can be appended though), or pay an unknown amount for a slice of time on an iridium sat. My main question is how do I get data on the sats' predicted paths?? I have seen the current maps and such, but is there a way to pull tabular data, or use a prediction formula, so I can pre-load the remote system with predicted sat paths for months or years to come? Please pardon if this is all newbie sort of stuff, as it is all new to me. thx,? gil,? af7ez A/Vaux Electronics, Inc. 480-354-5556 (fax: 480-354-5558) |
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