[amsat-bb] Re: Alinco DJ-G7T Pro/Con reviews
I have one of the first 100 released at Dayton, and have not done any firmware upgrades yet. It is useless as a full duplex satellite radio, as the amount of desense is greater than the satellite downlink most of the time. Neat radio otherwise, and I've used the 1.2 GHz with my hamfest buddy quite often. If you can find a FT-530 Yaesu used, they are the best full duplex satellite HT I've ever used. A used Kenwood D7 would be almost as good, plus you could use it for APRS while not on the satellites, or for use with the ISS. You can always go the two radio route as well. A simple 2m HT and a small 435 scanner or HT can be had for very little! Good Luck, Drew KO4MA - Original Message - From: To: "amsat-bb" Sent: Sunday, September 06, 2009 7:39 PM Subject: [amsat-bb] Alinco DJ-G7T Pro/Con reviews > Having read several threads here dealing with the Alinco Tribander HT, I > would like to hear from folks who are using said HT for full-duplex > satellite operation, either Pro or Con. I am looking for an HT for > portable work while RVing the country at the end of this month. All > reviews will be greatly appreciated. > > John W6ZKH > > ___ > Sent via amsat...@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Alinco DJ-G7T Pro/Con reviews
Or of course the venerable Icom W32A, still a great radio! David KG4ZLB Andrew Glasbrenner wrote: > I have one of the first 100 released at Dayton, and have not done any > firmware upgrades yet. It is useless as a full duplex satellite radio, as > the amount of desense is greater than the satellite downlink most of the > time. Neat radio otherwise, and I've used the 1.2 GHz with my hamfest buddy > quite often. > > If you can find a FT-530 Yaesu used, they are the best full duplex satellite > HT I've ever used. A used Kenwood D7 would be almost as good, plus you could > use it for APRS while not on the satellites, or for use with the ISS. You > can always go the two radio route as well. A simple 2m HT and a small 435 > scanner or HT can be had for very little! > > Good Luck, > Drew KO4MA > > - Original Message - > From: > To: "amsat-bb" > Sent: Sunday, September 06, 2009 7:39 PM > Subject: [amsat-bb] Alinco DJ-G7T Pro/Con reviews > > > > > ___ > Sent via amsat...@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Alinco DJ-G7T Pro/Con reviews
My 3-watt IC-W2A works well also. Glenn AA5PK - Original Message - From: "David - KG4ZLB" To: Cc: Sent: Monday, September 07, 2009 9:02 AM Subject: [amsat-bb] Re: Alinco DJ-G7T Pro/Con reviews > Or of course the venerable Icom W32A, still a great radio! > > David > KG4ZLB > > Andrew Glasbrenner wrote: >> I have one of the first 100 released at Dayton, and have not done any >> firmware upgrades yet. It is useless as a full duplex satellite radio, as >> the amount of desense is greater than the satellite downlink most of the >> time. Neat radio otherwise, and I've used the 1.2 GHz with my hamfest >> buddy >> quite often. >> >> If you can find a FT-530 Yaesu used, they are the best full duplex >> satellite >> HT I've ever used. A used Kenwood D7 would be almost as good, plus you >> could >> use it for APRS while not on the satellites, or for use with the ISS. You >> can always go the two radio route as well. A simple 2m HT and a small 435 >> scanner or HT can be had for very little! >> >> Good Luck, >> Drew KO4MA >> >> - Original Message - >> From: >> To: "amsat-bb" >> Sent: Sunday, September 06, 2009 7:39 PM >> Subject: [amsat-bb] Alinco DJ-G7T Pro/Con reviews >> >> >> >> >> ___ >> Sent via amsat...@amsat.org. Opinions expressed are those of the author. >> Not an AMSAT-NA member? Join now to support the amateur satellite >> program! >> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb >> >> > > ___ > Sent via amsat...@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Re: Alinco DJ-G7T Pro/Con reviews
I have one which I received in July after waiting for 2+ months. I have the latest, as of today, firmware installed. My experience with mine is that the RX sensitivity does not meet specifications, and the sub band is worse than the main band. I have an old Icom IC-T7H, same published specification, for comparison. With the same location exactly, same antenna exactly, distant repeaters which are full quieting on the IC-T7H are scratchy on the main band, and worse or unreadable on the sub band. This has been my experience as well with my Elk antenna and AO-51, though doing A/B testing is much harder there. This is with wideband receive off, all attenuation off. The sub band sensitivity is the same, not transmitting, with full duplex on or off. I see the same extreme desense when transmitting in full duplex. I have experimented with using it for an APRS digi, as it is unlikely to ever be a truly viable satellite rig. For that, it works very well with a few caveats. First, the squelch is very slow opening, so it is better to operate with it open and use tone detection. Surprisingly, there is no preemphasis going through the microphone jack, so you need to add in the twist externally. The cloning software is more like alpha than beta. There are several things which either don't work, or crash. In one case, the crash is the kind that gets you a "Report to Mother Microsoft" message. However, they are working on it, and with each new release it is more useful. It will probably be a neat package for ordinary usage when they get finished beta testing it. There have been several improvements, including some not covered in the release notes, in the firmware updates. Alan WA4SCA ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
