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CX2SA > SATDIG 06.12.10 21:05l 823 Lines 31214 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: TH-D72 HT ... (Patrick STODDARD (WD9EWK/VA7EWK))
2. Re: TH-D72 HT ... (Mark L. Hammond)
3. Re: TH-D72 HT ... (Bruce Robertson)
4. Saturday @ Mesa AZ hamfest (Patrick STODDARD (WD9EWK/VA7EWK))
5. more about the TH-D72A for satellites
(Patrick STODDARD (WD9EWK/VA7EWK))
6. Re: Saturday @ Mesa AZ hamfest (Rick Tejera)
7. Re: more about the TH-D72A for satellites (Jim Jerzycke)
8. Re: more about the TH-D72A for satellites (Robert Bruninga)
9. Re: more about the TH-D72A for satellites (Bob Herrell)
10. Re: more about the TH-D72A for satellites
(Patrick STODDARD (WD9EWK/VA7EWK))
11. TH-D72A brochure (vtnn43e@xxxxxxx.xxxx
12. Updates On Nanosail And Falcon 9 (B J)
----------------------------------------------------------------------
Message: 1
Date: Sun, 5 Dec 2010 14:28:44 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Re: TH-D72 HT ...
To: amsat-bb@xxxxx.xxx
Message-ID:
<AANLkTi=RS9y2-Nd54Y95E0DjnkArHUEVAU5OdP+=vdMR@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi!
The TH-D72A is the real deal as a cross-band full-duplex HT for
FM satellite work. And, unlike with the DJ-G7T and some
versions of the IC-W32A, no RX
desense while
transmitting. :-)
I used VFO B for TX, VFO A for RX (it has better
sensitivity), balanced audio all the way to VFO A,
open squelch for
VFO A, 5W transmit, and juat worked
AO-27. Nice!
I will try it on a later AO51 pass today, not the next
one around 2147 UTC, for another test. As for APRS,
it took little time to set it up and get it picked up
online. I have not hooked it up to a computer yet, but
that is not a high priority yet.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 2
Date: Sun, 05 Dec 2010 18:06:01 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] Re: TH-D72 HT ...
To: amsat-bb@xxxxxx.xxxx amsat-bb@xxxxx.xxx
Message-ID: <fb621f00K56cfur05b65JL@xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Neat! Not sure if that was what you were on when I contacted you this
afternoon--if so, sounded good.
To anybody in the know---Here's a question I have about the TH-D72---once
the TNC is put into KISS mode--can you use the micr0-USB port to a
communicate with terminal program on your PC? Having read the manual, I
see that full duplex 9600/dual band is possible, and I see that KISS is
possible. It claimes the micro-USB can be used to connect to a PC. But I
wonder about talking to the TNC while in KISS mode...
If that works--(access to TNC in KISS mode, full duplex/9600)--it would make
one nice little portable packet satellite radio package!
73,
Mark N8MH
At 02:28 PM 12/5/2010 -0700, Patrick STODDARD (WD9EWK/VA7EWK) wrote:
>Hi!
>
>The TH-D72A is the real deal as a cross-band full-duplex HT for
>FM satellite work. And, unlike with the DJ-G7T and some
>versions of the IC-W32A, no RX
>desense while
>transmitting. :-)
>
>I used VFO B for TX, VFO A for RX (it has better
>sensitivity), balanced audio all the way to VFO A,
>open squelch for
>VFO A, 5W transmit, and juat worked
>AO-27. Nice!
>
>I will try it on a later AO51 pass today, not the next
>one around 2147 UTC, for another test. As for APRS,
>it took little time to set it up and get it picked up
>online. I have not hooked it up to a computer yet, but
>that is not a high priority yet.
>
>73!
>
>
>
>
>
>Patrick WD9EWK/VA7EWK
>http://www.wd9ewk.net/
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. 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
Mark L. Hammond [N8MH]
------------------------------
Message: 3
Date: Sun, 5 Dec 2010 19:13:29 -0400
From: Bruce Robertson <ve9qrp@xxxxx.xxx>
Subject: [amsat-bb] Re: TH-D72 HT ...
To: amsat-bb@xxxxxx.xxx
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID:
<AANLkTim4FCfvG9Q-o2LqvZp=5wbfjoVR4XrVOWySOHMX@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
One thing I wonder is if they have done something clever with the
single USB port so that TNC data and rig control (CAT) no longer are
exclusive of each other. That remains a disappointing limitation on
rigs like the TH-D7A and TS-2000.
73, Bruce
VE9QRP
On Sun, Dec 5, 2010 at 5:28 PM, Patrick STODDARD (WD9EWK/VA7EWK)
<amsat-bb@xxxxxx.xxx> wrote:
> Hi!
>
> The TH-D72A is the real deal as a cross-band full-duplex HT for
> FM satellite work. And, unlike with the DJ-G7T and some
> versions of the IC-W32A, no RX
> desense while
> transmitting. ?:-)
>
> I used VFO B for TX, VFO A for RX (it has better
> sensitivity), balanced audio all the way to VFO A,
> open squelch for
> VFO A, 5W transmit, and juat worked
> AO-27. ?Nice!
>
> I will try it on a later AO51 pass today, not the next
> one around 2147 UTC, for another test. ?As for APRS,
> it took little time to set it up and get it picked up
> online. ?I have not hooked it up to a computer yet, but
> that is not a high priority yet.
>
> 73!
>
>
>
>
>
> Patrick WD9EWK/VA7EWK
> http://www.wd9ewk.net/
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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
>
--
http://ve9qrp.blogspot.com
------------------------------
Message: 4
Date: Sun, 5 Dec 2010 19:41:09 -0800 (PST)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Saturday @ Mesa AZ hamfest
To: amsat-bb@xxxxx.xxx
Message-ID: <545701.9197.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
Thanks for all the QSOs during demonstrations I gave at the
Superstition Amateur Radio Club's annual hamfest in Mesa,
Arizona, yesterday. I worked 2 passes each on AO-7, VO-52,
and HO-68, along with one SO-50 pass. I apologize if you
were trying for me on the SO-50 pass around 1719 UTC, as I
was chatting with Leo W7JPI and Larry WA6DIR, who both made
the trip to Phoenix for the hamfest during that pass.
During the VO-52 passes, instead of using my normal SSB satellite
setup (two FT-817NDs), I used only one of the 817s with the all-
mode receiver in the Kenwood TH-F6A tri-band HT. I bought this
radio a few weeks ago, using the $100 Kenwood voucher I won at the
AMSAT Symposium a couple of months ago (thanks to Kenwood and the
Symposium organizers in the Chicago area for that, and all of the
prizes they had on offer), mainly to make use of the all-mode
receiver to shrink the size of my SSB satellite station this way.
The 817's SSB receiver at 2m and 70cm is better than the all-mode
receiver in the TH-F6A, but the little HT works OK. The HT makes
a huge impression on the audience, seeing an FT-817 and an HT as
the station I'm using for SSB satellite work. It will go in my
carry-on bag with the other stuff I take on trips where I work
satellites.
The crowds - buyers and sellers - were larger yesterday than in the
past several years. At 0615 local (1315 UTC, about an hour before
sunrise), there was a line almost a half-mile (almost a km) long to
get into the hamfest. Traffic was backed out onto a street and
almost all the way to a freeway interchange, just to get into the
hamfest in the dark! It's been a long time since I've seen that at
a Phoenix-area hamfest. Along with W7JPI and WA6DIR, a couple of
other satellite regulars stopped by my AMSAT table - John N7JK, and
Rick K7TEJ. Thanks to the Superstation Amateur Radio Club for
providing AMSAT a space at their hamfest!
If anyone who worked WD9EWK during the hamfest wants a QSL card,
please e-mail me with the QSO details. I'll get a card out to you,
if you're in the log. Thanks again to all, and 73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 5
Date: Sun, 5 Dec 2010 20:24:10 -0800 (PST)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] more about the TH-D72A for satellites
To: amsat-bb@xxxxx.xxx
Message-ID: <425985.15516.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Hi!
I wavered on whether I was going to get this radio straight away, after
the fiasco (related to FM satellite operation) the Alinco DJ-G7T was
last year.? I didn't want to get bitten by a radio that was supposed to
be capable of full-duplex operation, but fall short like with the DJ-G7T.
After some thought, and after yesterday's hamfest, I drove over to the
local HRO store to see if they had any in stock. At mid-afternoon, HRO
still had 3 on the shelf at this store. I decided that, if the TH-D72 is
the true successor to the TH-D7 including the cross-band full-duplex
capability for FM voice satellite operation, I'd take the plunge.? I
bought the radio and the only option they had for it in the store
(cigarette-lighter cable, compatible with several other Kenwood HTs
including the TH-F6A I purchased a few weeks ago).
I charged the battery last night, and cleared some time this afternoon to
go out to my favorite city park to try it out. Not having used a Kenwood
HT on the satellites except for the TH-F6A as a receiver, I read through
the manual to make sure I had it set up for FM satellite work. I looked
at a few parameters I felt would be useful:
1. Transmit with VFO B, receive with VFO A. VFO A has better sensitivity
than VFO B, so why not go with that? There is no restriction on which VFO
can be the transmitter for this radio.
2. Audio balance. I set that all the way to VFO A, since I wasn't
interested in hearing VFO B. I could see with the S-meter if anyone else
was transmitting on the satellite uplink, and then rebalance the audio if
necessary to hear it.
3. Squelch. Open all the way on VFO A, tight on VFO B.
4. "DUP". This was a new one for me, not being familiar with the TH-D7 in
the past. Once I figured this out, turning it on for my transmit VFO (VFO
B), I was able to hear audio from VFO A whether or not I was transmitting
on VFO B.
I had to get a plug adapter to use my normal audio cable/splitter setup
for an earpiece and my audio recorder with a Kenwood HT and its smaller
speaker jack. I already had one for my TH-F6A, and it worked fine with
the TH-D72A. I made sure tuning steps on both bands for both VFOs were
at the smallest step (5 kHz), and that I had VFO B set for high power
(5W).
I started with the AO-27 pass at 2102 UTC. A very high pass here, with
maximum elevation of 80 degrees. I worked 7 stations in 7 minutes, and
received good reports on my audio through the satellite with the new
radio. The only issue I had in hearing the downlink wasn't due to the
radio - I had to move the antenna around as it passed over my head, and
there was a moment or two where the downlink audio was less than ideal.
I had to switch VFOs when tuning the receive VFO, something I don't have
to deal with on my IC-2820H mobile radio or when I use memory channels in
a non-full-duplex radio, but that was not a problem.
The second pass I attempted with the TH-D72A was on AO-51 around 2322
UTC. This was also a high pass, with maximum elevation of 63 degrees out
here. I had a little bit of difficulty hearing the satellite in the first
minute or so of the pass while transmitting, which could have been related
to how I was holding the antenna (Elk log periodic). I found during this
pass that I had to twist the antenna to clear up any receive issues while
transmitting. I think I might have heard the slightest desensing during a
couple of my transmissions, but that could have been related to how my
antenna was oriented toward the satellite. I logged 10 QSOs on the AO-51
pass, which wasn't bad for all the activity on there.
As I posted earlier and said on the air, the TH-D72A is the real deal as
a dual-band HT for full-duplex FM satellite operation. It does what the
DJ-G7T could not do, and I didn't even have to use the expanded manual on
the CD that came with the radio to get it set up for satellite work. I
also set it up to work on APRS, which took little time to do. I have not
tried it with a computer, to see if it will work as N8MH asked earlier.
Packet is actually something I was not very interested in for this radio -
FM satellites first, APRS next. The radio's GPS took only a few minutes
to pick up signals when I first activated it.
I do not have test equipment to quantify how well the TH-D72A's receiver
is and how it compares to other radios. From playing with it last night
and today, I know the receiver is on par with the IC-2820H I usually run
on FM birds. Excluding transmitter power, the only thing the 2820 has
over the TH-D72A is its separate knobs for each VFO. It also compares
favorably with the sensitivity of my IC-T7H HT - the radio I've used on
satellites from outside Hara Arena in Dayton (my other radios' receivers
get swamped with intermod there, but not the IC-T7H). I will have to
test it in a high-RF area like that at Dayton, to see if intermod plays
havoc with the weak satellite downlinks.
I'll work with this radio more, to get more familiar with it and possibly
work it into my demonstrations. I will eventually get around to hooking
it up to a computer, and seeing what I can do with packet and APRS. If
I'm not careful, I might even go as far as having an all-Kenwood HT
station for the OSCAR Straight Key Night in a few weeks (TH-D72A as CW
transmitter, TH-F6A as receiver).
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 6
Date: Sun, 5 Dec 2010 21:50:54 -0700
From: "Rick Tejera" <saguaroastro@xxx.xxx>
Subject: [amsat-bb] Re: Saturday @ Mesa AZ hamfest
To: <amsat-bb@xxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID:
<20101206045150.OUKI4722.fed1rmmtao106.cox.net@xxxxxxxxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
As always Patrick, good to see you, Unfortunately I had to leave early due
to family obligations, but the highlight of the hamfest for me would come
later that afternoon: I had a message on my phone telling me I'd won the
Grand Prize in the raffle! I now have in my lap a brand new Yaesu FT8900R
quad band radio!
Looking forward to the Thunderbird hamfest in January. Hopefully I'll be
able to work a pass or two between working the Club table & browsing.
See you then
73
Clear Skies
Rick Tejera
Editor SACnews,
Public Outreach Coordinator
Saguaro Astronomy Club
Phoenix, Arizona
www.saguaroastro.org
saguaroastro@xxx.xxx
K7TEJ, AMSAT 38452
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Patrick STODDARD (WD9EWK/VA7EWK)
Sent: Sunday, December 05, 2010 20:41
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Saturday @ Mesa AZ hamfest
Hi!
Thanks for all the QSOs during demonstrations I gave at the
Superstition Amateur Radio Club's annual hamfest in Mesa,
Arizona, yesterday. I worked 2 passes each on AO-7, VO-52,
and HO-68, along with one SO-50 pass. I apologize if you
were trying for me on the SO-50 pass around 1719 UTC, as I
was chatting with Leo W7JPI and Larry WA6DIR, who both made
the trip to Phoenix for the hamfest during that pass.
During the VO-52 passes, instead of using my normal SSB satellite
setup (two FT-817NDs), I used only one of the 817s with the all-
mode receiver in the Kenwood TH-F6A tri-band HT. I bought this
radio a few weeks ago, using the $100 Kenwood voucher I won at the
AMSAT Symposium a couple of months ago (thanks to Kenwood and the
Symposium organizers in the Chicago area for that, and all of the
prizes they had on offer), mainly to make use of the all-mode
receiver to shrink the size of my SSB satellite station this way.
The 817's SSB receiver at 2m and 70cm is better than the all-mode
receiver in the TH-F6A, but the little HT works OK. The HT makes
a huge impression on the audience, seeing an FT-817 and an HT as
the station I'm using for SSB satellite work. It will go in my
carry-on bag with the other stuff I take on trips where I work
satellites.
The crowds - buyers and sellers - were larger yesterday than in the
past several years. At 0615 local (1315 UTC, about an hour before
sunrise), there was a line almost a half-mile (almost a km) long to
get into the hamfest. Traffic was backed out onto a street and
almost all the way to a freeway interchange, just to get into the
hamfest in the dark! It's been a long time since I've seen that at
a Phoenix-area hamfest. Along with W7JPI and WA6DIR, a couple of
other satellite regulars stopped by my AMSAT table - John N7JK, and
Rick K7TEJ. Thanks to the Superstation Amateur Radio Club for
providing AMSAT a space at their hamfest!
If anyone who worked WD9EWK during the hamfest wants a QSL card,
please e-mail me with the QSO details. I'll get a card out to you,
if you're in the log. Thanks again to all, and 73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. 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
------------------------------
Message: 7
Date: Mon, 06 Dec 2010 05:37:28 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Subject: [amsat-bb] Re: more about the TH-D72A for satellites
To: amsat-bb@xxxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4CFC7698.5040200@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Thanks, Patrick
I've been considering "retiring" my TH-D7, and I think you just sold me
on the new Kenwood!
73, Jim KQ6EA
On 12/06/2010 04:24 AM, Patrick STODDARD (WD9EWK/VA7EWK) wrote:
> Hi!
>
> I wavered on whether I was going to get this radio straight away, after
> the fiasco (related to FM satellite operation) the Alinco DJ-G7T was
> last year. I didn't want to get bitten by a radio that was supposed to
> be capable of full-duplex operation, but fall short like with the DJ-G7T.
> After some thought, and after yesterday's hamfest, I drove over to the
> local HRO store to see if they had any in stock. At mid-afternoon, HRO
> still had 3 on the shelf at this store. I decided that, if the TH-D72 is
> the true successor to the TH-D7 including the cross-band full-duplex
> capability for FM voice satellite operation, I'd take the plunge. I
> bought the radio and the only option they had for it in the store
> (cigarette-lighter cable, compatible with several other Kenwood HTs
> including the TH-F6A I purchased a few weeks ago).
>
> I charged the battery last night, and cleared some time this afternoon to
> go out to my favorite city park to try it out. Not having used a Kenwood
> HT on the satellites except for the TH-F6A as a receiver, I read through
> the manual to make sure I had it set up for FM satellite work. I looked
> at a few parameters I felt would be useful:
>
> 1. Transmit with VFO B, receive with VFO A. VFO A has better sensitivity
> than VFO B, so why not go with that? There is no restriction on which VFO
> can be the transmitter for this radio.
>
> 2. Audio balance. I set that all the way to VFO A, since I wasn't
> interested in hearing VFO B. I could see with the S-meter if anyone else
> was transmitting on the satellite uplink, and then rebalance the audio if
> necessary to hear it.
>
> 3. Squelch. Open all the way on VFO A, tight on VFO B.
>
> 4. "DUP". This was a new one for me, not being familiar with the TH-D7 in
> the past. Once I figured this out, turning it on for my transmit VFO (VFO
> B), I was able to hear audio from VFO A whether or not I was transmitting
> on VFO B.
>
> I had to get a plug adapter to use my normal audio cable/splitter setup
> for an earpiece and my audio recorder with a Kenwood HT and its smaller
> speaker jack. I already had one for my TH-F6A, and it worked fine with
> the TH-D72A. I made sure tuning steps on both bands for both VFOs were
> at the smallest step (5 kHz), and that I had VFO B set for high power
> (5W).
>
> I started with the AO-27 pass at 2102 UTC. A very high pass here, with
> maximum elevation of 80 degrees. I worked 7 stations in 7 minutes, and
> received good reports on my audio through the satellite with the new
> radio. The only issue I had in hearing the downlink wasn't due to the
> radio - I had to move the antenna around as it passed over my head, and
> there was a moment or two where the downlink audio was less than ideal.
> I had to switch VFOs when tuning the receive VFO, something I don't have
> to deal with on my IC-2820H mobile radio or when I use memory channels in
> a non-full-duplex radio, but that was not a problem.
>
> The second pass I attempted with the TH-D72A was on AO-51 around 2322
> UTC. This was also a high pass, with maximum elevation of 63 degrees out
> here. I had a little bit of difficulty hearing the satellite in the first
> minute or so of the pass while transmitting, which could have been related
> to how I was holding the antenna (Elk log periodic). I found during this
> pass that I had to twist the antenna to clear up any receive issues while
> transmitting. I think I might have heard the slightest desensing during a
> couple of my transmissions, but that could have been related to how my
> antenna was oriented toward the satellite. I logged 10 QSOs on the AO-51
> pass, which wasn't bad for all the activity on there.
>
> As I posted earlier and said on the air, the TH-D72A is the real deal as
> a dual-band HT for full-duplex FM satellite operation. It does what the
> DJ-G7T could not do, and I didn't even have to use the expanded manual on
> the CD that came with the radio to get it set up for satellite work. I
> also set it up to work on APRS, which took little time to do. I have not
> tried it with a computer, to see if it will work as N8MH asked earlier.
> Packet is actually something I was not very interested in for this radio -
> FM satellites first, APRS next. The radio's GPS took only a few minutes
> to pick up signals when I first activated it.
>
> I do not have test equipment to quantify how well the TH-D72A's receiver
> is and how it compares to other radios. From playing with it last night
> and today, I know the receiver is on par with the IC-2820H I usually run
> on FM birds. Excluding transmitter power, the only thing the 2820 has
> over the TH-D72A is its separate knobs for each VFO. It also compares
> favorably with the sensitivity of my IC-T7H HT - the radio I've used on
> satellites from outside Hara Arena in Dayton (my other radios' receivers
> get swamped with intermod there, but not the IC-T7H). I will have to
> test it in a high-RF area like that at Dayton, to see if intermod plays
> havoc with the weak satellite downlinks.
>
> I'll work with this radio more, to get more familiar with it and possibly
> work it into my demonstrations. I will eventually get around to hooking
> it up to a computer, and seeing what I can do with packet and APRS. If
> I'm not careful, I might even go as far as having an all-Kenwood HT
> station for the OSCAR Straight Key Night in a few weeks (TH-D72A as CW
> transmitter, TH-F6A as receiver).
>
> 73!
>
>
>
>
>
>
>
> Patrick WD9EWK/VA7EWK
> http://www.wd9ewk.net/
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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
>
>
------------------------------
Message: 8
Date: Mon, 6 Dec 2010 09:30:16 -0500
From: "Robert Bruninga" <bruninga@xxxx.xxx>
Subject: [amsat-bb] Re: more about the TH-D72A for satellites
To: "'Jim Jerzycke'" <kq6ea@xxxxxxx.xxx>, <amsat-bb@xxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <7B2C3E8F4F19446C9284BFD97EA18AE7@xxxxx.xxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
> ... if the TH-D72 is the true successor to
> the TH-D7 including the cross-band full-duplex
> I'd take the plunge.
> 1. Transmit with VFO B, receive with VFO A.
> VFO A has better sensitivity than VFO B,
> so why not go with that? There is no
> restriction on which VFO can be the TX
My understanding is that unlike the THD7, the D72 can only
operate full duplex as noted above RX-A and TX-B. But either
band can be VHF or UHF, so you can operate mode B or J, but the
TX is always from B.
Bob, WB4APR
------------------------------
Message: 9
Date: Mon, 06 Dec 2010 10:41:09 -0600
From: Bob Herrell <aj5c@xxx.xxx>
Subject: [amsat-bb] Re: more about the TH-D72A for satellites
To: amsat-bb@xxxxx.xxx
Message-ID: <4CFD1225.8030900@xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Thanks, Patrick
I, too, have been considering "retiring" my TH-D7A(G), and you just sold me
on the new Kenwood after our contact on AO-51. Sounded great.
Ordered mine from HRO a few minutes ago. Also got the drop in charger.
Since they changed battery to a Li-ion, the D7A charger (NiCad) will
not work. Hope these new batteries last longer than the old NiCad's.
73,
Bob Herrell, AJ5C
------------------------------
Message: 10
Date: Mon, 6 Dec 2010 10:57:23 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Re: more about the TH-D72A for satellites
To: amsat-bb@xxxxx.xxx
Message-ID:
<AANLkTin6Km_2Sk9rv3dNagmMu5-u9avFTVPUDz2kn1Mh@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Bob!
> I, too, have been considering "retiring" my TH-D7A(G), and ?you just sold me
> on the new Kenwood after our contact on AO-51. Sounded great.
Several commented on my audio during the two passes I worked, as well as
"selling" them on the new radio. If a bunch of D7s show up for sale, maybe
a few of them will end up in the hands of those interested in working
satellites.
> Ordered mine from HRO a few minutes ago. Also got the drop in charger.
> Since they changed battery to a ?Li-ion, the D7A charger (NiCad) will
> not work. Hope these new batteries last longer than the old NiCad's.
Do you have a drop-in or fast charger for your D7? I think the wall-wart
charged my battery in 4 or 5 hours on Saturday night. The battery had a
partial charge in it, enough to power on the radio and perform a full reset
before letting it charge fully. I haven't looked at the model numbers for all
the accessories closely, since so few of them are in the stores now. I'll get
some of them as they arrive in the stores on the slow boat from Japan.
I have an old Kenwood speaker/mic, and the external power cables are
the same as for the TH-F6A and TH-D7 (among others), so I had all the
accessories I could get for the radio right now. I didn't use the speaker/mic
yesterday; I used the mic on the face of the radio, and plugged my audio
splitter (including adapter to step down from the 3.5mm plug on the splitter
to the 2.5mm speaker jack on the HT) with earpiece and audio recorder
into the speaker jack.
I've read the other posts on this thread, and I will take a look at the DUP
setting when I get home tonight. It is possible that the way I had it set up
(transmit on VFO B, receive on VFO A) is the only way it works on the
D72. If that is the case, then Kenwood did it right by their choice of VFO
A having to be the receiver when in DUP mode. VFO A is more sensitive
than VFO B. Being able to use the joystick-like 4-way control button on the
face of the radio to tune up and down made it easy to make the adjustments
on the receive VFO, without having to use the knob on the top of the radio
(press A/B to switch VFOs, then press down on the joystick button to move
down 5 kHz, then A/B again to get back to VFO B before transmitting - all
done with the thumb that also pressed the PTT on the side of the radio).
Packet in general, as well as looking at the APRS functionality beyond
simply transmitting my location, will be something I take a closer look at
some other time in the near future.
I apologize if I appear to be going into too much detail on what I've done
in setting up the radio before I went on the air with it yesterday. I'm
coming
at it as someone who hasn't used Kenwood HTs in at least 15 years until
the past few weeks when I bought a TH-F6A, and no experience with the
TH-D7. If you know the TH-D7, you'll be able to get running quickly with a
TH-D72. The manual would still be a useful read for those people, to learn
about the new functionality in the TH-D72.
For those interested in reading the manuals without shelling out cash first,
Kenwood has a good download site for instruction manuals of its ham gear:
http://manual.kenwood.com/en_contents/search/
Just enter "TH-D72", and you will see two sets of links. The first set are
for the PDF version of the printed manual supplied with the radio, in
several different languages. The other links that have "CDROM" in the
description are for the detailed manual that is supplied on a CD with the
radio. For software used with the radio (virtual COM port driver, along
with the Memory Control Program) along with software for other Kenwood
radios, go to:
http://www.kenwood.co.jp/i/products/info/amateur/software_download.html
I haven't looked on the CD that came with my radio, since I didn't want
to pull out the CD/DVD drive and plug it into my netbook last night. That
was why I went to these links to download what I might already have on
that CD. :-)
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 11
Date: Mon, 6 Dec 2010 18:48:14 +0000 (UTC)
From: vtnn43e@xxxxxxx.xxx
Subject: [amsat-bb] TH-D72A brochure
To: AMSAT <amsat-bb@xxxxx.xxx>
Message-ID:
<1897075123.253202.1291661294289.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
Strangly there is no brochure for the TH-D72A available on the Kenwood USA
site. Was finally able to locate one for anyone interested.
http://www.strictlyham.com.au/images/stories/kenwood/handheld/pdf/TH-D72A.pdf
Zack
N8FNR
------------------------------
Message: 12
Date: Mon, 6 Dec 2010 11:29:56 -0800 (PST)
From: B J <top_gun_canada@xxxxx.xxx>
Subject: [amsat-bb] Updates On Nanosail And Falcon 9
To: amsat-bb@xxxxx.xxx
Message-ID: <443592.10986.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Nanosail spacecraft ejected from FASTSAT:
http://www.nasa.gov/mission_pages/smallsats/fastsat/10-162.html
Falcon 9 launch delayed for at least 2 days:
http://twitter.com/@xxxxxxxx
http://spaceflightnow.com/falcon9/002/status.html
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
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