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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/5E6RD2QMX3BFQRFK7LFAOSR47MIW7AXX/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "120720082310.23342.493C57FB00006CDC00005B2E22193100029B0A02D2089B9A019C04040A0DBF049BCC02@att.net",
    "message_id_hash": "5E6RD2QMX3BFQRFK7LFAOSR47MIW7AXX",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/PNHQRDNHTBWNPRGGKJJCTK34C32HYVBE/",
    "sender": {
        "address": "n3tl (a) bellsouth.net",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "[email protected]",
    "subject": "[amsat-bb] Re: AMSAT-BB Digest AO-51 & SO-50 Yaesu VX-7R",
    "date": "2008-12-07T23:10:51Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/PNHQRDNHTBWNPRGGKJJCTK34C32HYVBE/",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Rich,\n\nThank you for posting this. I never thought to mention the Memory Tune feature, which is, indeed, very useful. Like you, I began using the VX-7R on the satellites because it is what I had at the time. I have no intention of trading mine until some company brings a new radio to market with full duplex capability. \n\nIt permitted me to earn Satellite VUCC, all handheld, and the AMSAT Achievement Award - the latter using only 50 mW contacts (21 states, Mexico and Ontario) made on the same set of 2 AA Duracells. I also made four contacts through the ISS U/V repeater over the weekend with it. \n\nAs you say, it may not be the best for the satellites. But it's more-than-good-enough for me.\n\nAlso, here's a tip that, I hope, you'll find to decrease your stress level on every pass. Get a small digital voice recorder that has a time counter, and just record your passes - even if it's just the wild sound. I have done that since Day 1 with a small recorder I can clip to my shirt collar or pocket. I don't worry about writing down calls at all. I start the tape on an even minute (e.g., if my AOS is at 23:15:12, I start the recorder at 23:12:00. I speak that time into the condenser mic, and include the satellite I'm working. After the pass, I just come in and replay the tape, which allows me to synch calls and times correctly for logging purposes. It also gives me a chance to MP3 clips from contacts I want to keep. The \"wild sound\" quality isn't as good as having a full duplex radio and having the recorder connected to the audio out jack, but it's the only way to get boths sides of a contact since the VX-7R operates only semi-duplex.\n\n73 to all,\n\nTim - N3TL\nAMSAT Member No. 36820\nQRP-ARCI Member No. 5547\nARRL Member No. 7027180\nAthens, Ga. - EM84ha\n-------------- Original message from \"ki6rrq\" <[email protected]>: -------------- \n\n\n> I am currently using a Yaesu VX-7R (not the best for satellites, also using \n> it because that's what I had)for the ISS and the FM birds. I don't know if \n> this will help anyone but I found using the memory tune feature is very \n> helpful for working the Doppler, I don't know if your TH-F6A or many other \n> HT's have it but I think it saves me a little time and hassle, when the \n> receive frequency is on 2 meters, anyway. I know the FT-60's have it too. \n> \n> For AO-51, I save a memory channel with the 2 meter receive freq and then \n> add the odd split or odd band split to the TX part of that memory and the pl \n> where appropriate ... Then when I use it out in the field on my Arrow II, I \n> bring up the memory and then select the memory tuning mode, which I guess is \n> similar to the VFO mode but keeps the TX side in place and allows me to tune \n> the RX frequency up and down to adjust for the Doppler and all I have to do \n> is push the PTT when I make my call and the 2 meter TX frequency is \n> automatically used. I don't even have to hold the radio, just get my \n> fingers to the dial tuning knob, a few times during the pass. (tripod \n> mounted radio, per my qrz.com) I haven't found its worth worrying about \n> the Doppler on the 2 meter side, since the radio only does 5k at a time. \n> After trying numerous methods, I found this to be easiest, with everything \n> else you have to deal with on a mobile sat. operation; writing calls down, \n> keeping the antenna on the bird, testing for polarity alignment, dealing \n> with the dark, oh yea what was that guys call again... Its like an Apollo 13 \n> rescue mission to get it all done... except its always a fun ride... LOL, I \n> needed to simplify everything. \n> \n> Best Rich KI6RRQ \n> \n> ------------------------------ \n> \n> Message: 2 \n> Date: Sun, 7 Dec 2008 13:42:01 -0500 \n> From: \"Jim Leder\" \n> Subject: [amsat-bb] Re: Kenwood TH-F6A for AO-51 / SO-50?? \n> To: \"Amsat\" , \"Guy Brauning\" \n> \n> Message-ID: <547D1F8574B04DDC801A1FD71EB224FE@Toshibalaptop> \n> Content-Type: text/plain; format=flowed; charset=\"iso-8859-1\"; \n> reply-type=original \n> \n> I have used my Kenwood TH-F6A along with an Arrow antenna, and IMHO it works \n> \n> just fine. You do need to get it programmed right and you need to get used \n> to switching between VFOs as you track the satellite and the Doppler effect \n> on frequency. It is NOT a full duplex radio like the W32A, and you will not \n> be able to hear yourself, but I have never felt that's been a problem.. I \n> programmed mine to transmit on one VFO (uplink) and be able to receive on \n> several different frequencies (downlink) on the other VFO. On the transmit \n> VFO, the squelch is closed all the way, while on the receive VFO, it's open \n> all the way. So, VFO A is set for uplink of 145.920 on memory channel 150 \n> and on memory channels 152-153 I have them programmed for 435.290 and \n> 435.295 (downlink which is in VFO B). 154 is center frequency of 435.300 and \n> \n> of course 155 and 156 are set to 435.305 and 435.310. By switching between \n> VFOs I can change downlink channels/frequencies to fit the Doppler shift. A \n> little cumbersome, but that little radio works very well. You can follow a \n> similar scheme on the QRP channel of AO51 (mine is 160-166) and SO50 (mine \n> is 170-176-get the picture). I have made several contacts with it on the QRP \n> \n> channels but have had no luck on SO50, which is a lot more difficult \n> satellite to hear. \n> I'm using it because it's what I had, and I'm happy to say with a little \n> use and practice you quickly get the hang of it. \n> Of course, either the W32A or the Kenwood TH-D7A do FULL duplex, but both \n> are no longer in production. Hearing yourself is nice, but not necessary. \n> \n> Jim Bob Buckeye \n> AKA \n> **** Jim Leder**** \n> K8CXM since 1961 \n> IBM retiree since 1999 \n> \n> _______________________________________________ \n> Sent via [email protected]. Opinions expressed are those of the author. \n> Not an AMSAT-NA member? Join now to support the amateur satellite program! \n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb \n",
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}