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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/YV6GX6QYYEWPSKZOPTAC2B4KX36YFSPE/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "CAGdEbNZP-hCwXk8jOQnQMZxi8O7yFMsygmwaS6k2DV6_gk=2ug@mail.gmail.com", "message_id_hash": "YV6GX6QYYEWPSKZOPTAC2B4KX36YFSPE", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/IMBN6CJIT5UNE57LDYHTHYHOCPG6VYDP/?format=api", "sender": { "address": "n4hf.philip (a) gmail.com", "mailman_id": "e29da96d91544f959c0c8ffa395b1def", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/e29da96d91544f959c0c8ffa395b1def/emails/?format=api" }, "sender_name": "Philip Jenkins", "subject": "Re: [amsat-bb] Kenwood D72 on SO-50", "date": "2015-07-05T14:10:53Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/Z7RRM534F2ZGG7AO5VBFXYW7RRLTXHMR/?format=api", "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Thanks, Frank (and others)\n\nI bought the KHS-22 headset a couple of months ago JUST for satellite use.\n\nI did successfully use two radios a couple of years ago (which got much\neasier after I learned I didn't have to adjust the 2M uplink as well as the\ndownlink), and I thought it would just be easier to have it all in one\nradio package.\n\nI was hoping the D72 would be more hands-free, but it still looks like I\nneed at least 3 hands (one for the Arrow antenna, one to change frequencies\non the radio, and another for the PTT switch on the headset :-) ) It sounds\nlike EO-80 will be TOO easy to operate through, other than manually moving\nthe antenna. :-)\n\nThanks again for all the advice, both on the BB and personal emails. I may\ntry SO-50 with this new knowledge later this afternoon.\n\nPhilip N4HF\n\nOn Sat, Jul 4, 2015 at 10:57 PM, Frank Krizan <[email protected]>\nwrote:\n\n> Philip,\n>\n> I always use the DUP function for satellite work. And, I always use a\n> headset (ear-bud and mic). The Kenwood HT headset (I have the discontinued\n> HMC-3; the KHS-22 is the current model) has served me well for many years.\n>\n> From the Packet Section of the D72A Manual:\n> \"Note:\n>\n> * When the operating band is Band A, you cannot change to Full Duplex mode.\n>\n> * When in single band mode, and Band A/B is set to VHF/VHF or UHF/UHF, you\n> cannot change to Full Duplex mode.\n>\n> * When using the Full Duplex function, connect an earphone to the SP jack.\n> Using an earphone will prevent feedback that can cause the transceiver to\n> emit a howling sound.”\n>\n> 73, Frank K5HS\n>\n>\n> > On Jul 4, 2015, at 21:49, Philip Jenkins <[email protected]> wrote:\n> >\n> > So, none of you has said a word about turning on the \"duplex\" feature at\n> > all.....do I just need to forget about setting it, and just deal with the\n> > dual VFOs?\n> >\n> > Thanks for the great suggestions I've gotten so far. :-)\n> >\n> > Philip N4HF\n> >\n> > On Sat, Jul 4, 2015 at 8:55 PM, Frank Krizan <[email protected]>\n> > wrote:\n> >\n> >> For Philip and the group,\n> >>\n> >> Here’s the suggestion that’s been floating around since 2011. It\n> stemmed\n> >> from a discussion with Keith Pugh, W5IU:\n> >>\n> >> I spent quite a bit of time with Keith Pugh, W5IU, of AMSAT, who also\n> >> owns a D72A. We commiserated over the fact that the new radio doesn't\n> >> allow for separate PTT and Tune of the A and B bands.\n> >>\n> >> We'd like to suggest that a future firmware update\n> >> offer a RADIO MENU Option for PTT which would toggle through: NORMAL,\n> >> A=PTT/B=TUNE, A=TUNE/B=PTT. The Band selected for TUNE would be flagged\n> >> with the standard solid \"arrowhead\" and the Band selected for PTT would\n> be\n> >> flagged with a \"flashing\" \"arrowhead\".\n> >>\n> >> This would allow for easier use of the radio for LEO\n> >> satellite work, especially when the download needs to be tuned. Right\n> now,\n> >> the operator needs to remember what Band is selected and ensure the\n> correct\n> >> Band is chosen before changing the frequency, either via VFO or Memory\n> >> Channel.\n> >>\n> >> It's very easy to get confused and change the uplink\n> >> frequency and, then, transmit on the downlink. Having separate PTT/TUNE\n> >> would make this radio a lot more fun for satellite use.\n> >>\n> >> Maybe someone’s listening out there who could help.\n> >>\n> >> 73, Frank K5HS (ex KR1ZAN)\n> >>\n> >>\n> >>> On Jul 4, 2015, at 20:42, Frank Krizan <[email protected]>\n> wrote:\n> >>>\n> >>> Hi Philip,\n> >>>\n> >>> I’ve just gotten used to pressing the A/B switch to toggle the PTT/Tune\n> >> to the frequency I want to change. It’s a pain. I usually program in\n> >> memories for AOS, AOS+, MID, MID+, and LOS. And, once in a while, I\n> change\n> >> the wrong channel or transmit on the wrong frequency. I’ve suggested a\n> >> firmware change to everyone who will listen to offer a PTT selection and\n> >> TUNE selection so the operator doesn’t have to toggle the A/B; but, so\n> far,\n> >> no success.\n> >>>\n> >>> If the D72A could also have smaller frequency steps and the ability to\n> >> select which radio (A or B) was designated for PTT and for TUNE, the\n> D72A\n> >> would be a great HT for portable use.\n> >>>\n> >>> From what I’ve been able to determine, you cannot ‘link’ VHF and UHF\n> >> memories together to achieve the split function you described. This\n> would\n> >> be another firmware option that could offer some convenience.\n> >>>\n> >>> I love the D72A, and, it’s a shame that to work the [flame off] Easy\n> >> Sats, it’s easier to buy a $39 radio than to use a very full featured\n> radio.\n> >>>\n> >>> Maybe if more folks agreed with the suggestion, Kenwood would listen.\n> >>>\n> >>> I would also like to see a new HT with a Bluetooth interface to allow\n> >> for iOS or Android Apps which could remotely change the frequencies or\n> >> channels during a pass. This could also allow for audio interfaces for\n> >> PSK-31, APRS, Packet, and more.\n> >>>\n> >>> 73, Frank K5HS\n> >>>\n> >>>\n> >>>> On Jul 4, 2015, at 20:15, Philip Jenkins <[email protected]>\n> wrote:\n> >>>>\n> >>>> I bought a D72A a little over a year ago because it had APRS built-in;\n> >> this\n> >>>> made it very handy for the balloon-chasing I used to do.\n> >>>>\n> >>>> Now I'm trying to set it up for SO-50. I'm successfully putting it\n> into\n> >>>> full-duplex mode - with the 144 Mhz freq (pl 67.0) on the B-band, and\n> >> the\n> >>>> 435 Mhz frequency on A-band. (Duplex cannot be engaged while the radio\n> >> is\n> >>>> on the A-band.) I'm running into two problems though.\n> >>>>\n> >>>> 1 ) Whenever I want to change the receive (downlink) frequency because\n> >> of\n> >>>> Doppler, turning the knob changes the B-band side, the transmit, which\n> >> is\n> >>>> what I don't want. As it is, since I can't get the 435Mhz to change,\n> >> this\n> >>>> setting is only going to allow me to hear the satellite mid-pass\n> >>>>\n> >>>> 2) I had the idea of putting this/these VFO settings - including\n> duplex\n> >> -\n> >>>> into memories, one memory for each 5 Khz step on receive. When I\n> follow\n> >> the\n> >>>> manual directions for entering odd splits in memory, whenever I check\n> to\n> >>>> see what's in the memory by transmitting, (it appears) I'm just\n> >>>> transmitting simplex on the 435Mhz frequency; the radio's display\n> >> doesn't\n> >>>> change (other than the s-meter showing that power is being\n> transmitted).\n> >>>>\n> >>>> I'm wondering how others are making their D72s work successfully on\n> >> SO-50.\n> >>>> Is/are there (a) certain step(s) that I'm missing in order to change\n> the\n> >>>> receive frequency AND enter full-duplex VFO settings into memory\n> >>>> successfully?\n> >>>>\n> >>>> Thanks for the help...either replying to the BB or to me personally is\n> >> ok. (\n> >>>> [email protected])\n> >>>>\n> >>>> Philip N4HF EM85\n> >>>> _______________________________________________\n> >>>> Sent via [email protected]. AMSAT-NA makes this open forum available\n> >>>> to all interested persons worldwide without requiring membership.\n> >> Opinions expressed\n> >>>> are solely those of the author, and do not reflect the official views\n> >> of AMSAT-NA.\n> >>>> Not an AMSAT-NA member? Join now to support the amateur satellite\n> >> program!\n> >>>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n> >>>\n> >>> _______________________________________________\n> >>> Sent via [email protected]. AMSAT-NA makes this open forum available\n> >>> to all interested persons worldwide without requiring membership.\n> >> Opinions expressed\n> >>> are solely those of the author, and do not reflect the official views\n> of\n> >> AMSAT-NA.\n> >>> Not an AMSAT-NA member? Join now to support the amateur satellite\n> >> program!\n> >>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n> >>\n> >>\n> > _______________________________________________\n> > Sent via [email protected]. AMSAT-NA makes this open forum available\n> > to all interested persons worldwide without requiring membership.\n> Opinions expressed\n> > are solely those of the author, and do not reflect the official views of\n> AMSAT-NA.\n> > Not an AMSAT-NA member? Join now to support the amateur satellite\n> program!\n> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n>\n>\n", "attachments": [] }