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CX2SA > SATDIG 24.03.15 19:37l 720 Lines 26557 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: UT1FG/mm (Bryan Green)
2. UT1FG/MM Request and Info (John Papay)
3. Dayton (Martha)
4. FT736R cable (ingejack@xxx.xxxx
5. Re: FT736R cable (Rolf Krogstad)
6. Re: FT736R cable (Daniel Cussen)
7. Re: FT736R cable (Greg D)
8. antennas and radios for that which is presently on orbit (or
soon will be) (Eric Fort)
9. Re: antennas and radios for that which is presently on orbit
(or soon will be) (Clint Bradford)
10. Re: antennas and radios for that which is presently on orbit
(or soon will be) (Eric Fort)
11. Re: antennas and radios for that which is presently on orbit
(or soon will be) (Paul Stoetzer)
12. Re: FT736R cable (Andre)
13. Re: FT736R cable (Daniel Cussen)
14. IC-9100 vs FT-847 (Richard Lawn)
15. France (IN94) on AO-07B (Michel F6GLJ)
----------------------------------------------------------------------
Message: 1
Date: Sun, 22 Mar 2015 17:15:23 -0700
From: Bryan Green <bryan@xxxxx.xxx>
To: Bob- W7LRD <w7lrd@xxxxxxx.xxx>, AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] UT1FG/mm
Message-ID: <9C9D9263-B8AB-4C4B-8540-528A88148912@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Greenwing
Sent from my iPhone
> On Mar 22, 2015, at 17:11, Bob- W7LRD <w7lrd@xxxxxxx.xxx> wrote:
>
> What is the name of the ship UT1FG/mm is on, able to track on marine
traffic site
> 73 Bob W7LRD
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Mon, 23 Mar 2015 00:00:50 -0400
From: John Papay <john@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] UT1FG/MM Request and Info
Message-ID: <891074.4263.bm@xxxxxxx.xxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
The pileups on Yuri have been growing and it is
getting more difficult for him to make contacts.
He has requested that you only work him once per
grid so that he can work more stations. So if you
work him in a grid on a FO-29 pass, please don't call
him again on any satellite if he is in the same grid.
This will give more stations a chance to get a new grid.
He has been working on QSL cards and plans to do a mailing
from the next port in Longview, WA. You may receive cards
even if you didn't request them.
73,
John K8YSE
------------------------------
Message: 3
Date: Mon, 23 Mar 2015 11:25:18 -0400
From: Martha <martha@xxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>, Board of Directors <bod@xxxxx.xxx>,
k0ceh@xxxxx.xxx
Cc: Martha Saragovitz <martha591@xxxxx.xxx>
Subject: [amsat-bb] Dayton
Message-ID:
<CAPk0USx-f7wPSL-P9pSP=yV6wyaXhfWRS-J6vAP9wbv+9CYsbg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
AMSAT has a block of rooms for Dayton at the Country Inns & Suites in
Beavercreek OH. A preference is given to AMSAT members who volunteer in the
booth. If you are interested in booking a room, call Martha at
301-822-4376. I will need your name, daytime phone number, credit card
number, expiration date and room nights.
*VERY IMPORTANT* - The AMSAT office will be *closed from Thursday, April 2
- Monday, April 13th *(my birthday!) I will be unable to check email or
phone messages so call before the 2nd or after the 13th. The cut-off date
is April 20th.
73- Martha
------------------------------
Message: 4
Date: Mon, 23 Mar 2015 10:40:51 -0700
From: <ingejack@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] FT736R cable
Message-ID: <20150323134051.7M5IH.20951.imail@xxxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8
Need to know what USB cable that FT736R users are using to connect their
computer and SATPC32 with. It calls for a RS232 TTL cable but need to know
what company and cable descrition they are using if possible., Thanks for
any help !! Jack/KC7MG
------------------------------
Message: 5
Date: Mon, 23 Mar 2015 16:47:21 -0500
From: Rolf Krogstad <rolf.krogstad@xxxxx.xxx>
To: ingejack@xxx.xxxx "<AMSAT-BB@xxxxx.xxx>" <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] FT736R cable
Message-ID:
<CAJJyj=Yi_VittawEe_iJeXMyCA9HpspEpYriZHvfK3Z=u_toCw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Jack/KC7MG,
I made a very simple homebrew cable using just a two transistors and five
resistors.
Here is the circuit:
http://www.mindspring.com/~n2wwd/html/body_doppler_compensation.html
I hate soldering connectors, so I took a DB9 cable and cut off one end to
save on having to solder that connector, leaving only the connector on the
radio side which needed to be soldered. I built the circuit on a small
breadboard and put it in a plastic box.
The cable works great.
GL
Rolf NR0T
Amsat #38889
Amsat UK
On Mon, Mar 23, 2015 at 12:40 PM, <ingejack@xxx.xxx> wrote:
> Need to know what USB cable that FT736R users are using to connect their
> computer and SATPC32 with. It calls for a RS232 TTL cable but need to know
> what company and cable descrition they are using if possible., Thanks for
> any help !! Jack/KC7MG
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 6
Date: Mon, 23 Mar 2015 21:52:42 +0000
From: Daniel Cussen <dan@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] FT736R cable
Message-ID:
<CAF3DnKgS5rcMYf6MbQkA3sLbjTnE8yGjVvTW5ucWT4CMVWSFPQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Here is the wiring of a serial interface
http://www.mindspring.com/~n2wwd/html/body_doppler_compensation.html
For usb to TTL you need 5V TTL logic and presumably similar
connections and baud rates.
If you look on ebay you can see people selling them and the rig end
needs the right connector, a 6 pin DIN.
You connect the TX of the USB lead to the RX on the radio (pin3) and
the output of the rig (pin 2) to the RX on the USB converter and pin 1
to ground.
You probably don't need the pin 6 connection as the converter will be
supplied by the USB power.
Make sure to get a USB cable with drivers available for your current
operating system and ideally a common one so that drivers will be
available in many years time for future systems.
Ideally if you could afford it a fully isolated interface would be better.
On 23/03/2015, ingejack@xxx.xxx <ingejack@xxx.xxx> wrote:
> Need to know what USB cable that FT736R users are using to connect their
> computer and SATPC32 with. It calls for a RS232 TTL cable but need to know
> what company and cable descrition they are using if possible., Thanks for
> any help !! Jack/KC7MG
------------------------------
Message: 7
Date: Mon, 23 Mar 2015 22:12:27 -0700
From: Greg D <ko6th.greg@xxxxx.xxx>
To: dan@xxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] FT736R cable
Message-ID: <5510F23B.8040304@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii; format=flowed
The FT-736R definitely has a serial interface, but it's not USB. It's
the old style serial, aka "RS-232" or "Com port", except the signal
levels are TTL (0-5v) instead of proper RS-232 (-12 to +12 usually).
Actually it's +12 to -12, i.e. inverted in sense compared to TTL. So
one needs a level shift and invert, which is what the circuit is for,
and that then needs to plug into a Serial port.
Most computers built in the last several years (decade?) don't have
serial ports, having replaced them for peripheral attachments with USB
ports. Some computers have more USB ports than my car has cup holders.
The difference is protocol - what information gets sent over the wires -
and there USB is very different than simple Serial. If your computer
doesn't have a serial port, you need to buy a USB to Serial adapter, and
then plug the referenced circuit into that.
What Daniel refers to on sites like eBay are essentially the combination
the two parts. They have a USB to RS-232 adapter, and the level
shifter/inverter, all in one package. Good deal if you don't feel like
a soldering project, but, yes, watch out for the drivers.
Regarding the circuit, if your program only sends commands to the 736,
and never reads information from the 736 (I don't know of any that do),
then you can simplify the diagram to just R1 and Q1. Either way, I would
recommend you add a small diode (1N4001 or 1N914) between the Base of Q1
and ground (the Emitter pin), cathode at the Base, to protect Q1 from
the negative swing of the RS-232 signal.
Good luck!
Greg KO6TH
Daniel Cussen wrote:
> Here is the wiring of a serial interface
>
> http://www.mindspring.com/~n2wwd/html/body_doppler_compensation.html
>
> For usb to TTL you need 5V TTL logic and presumably similar
> connections and baud rates.
>
> If you look on ebay you can see people selling them and the rig end
> needs the right connector, a 6 pin DIN.
>
> You connect the TX of the USB lead to the RX on the radio (pin3) and
> the output of the rig (pin 2) to the RX on the USB converter and pin 1
> to ground.
>
> You probably don't need the pin 6 connection as the converter will be
> supplied by the USB power.
>
> Make sure to get a USB cable with drivers available for your current
> operating system and ideally a common one so that drivers will be
> available in many years time for future systems.
>
> Ideally if you could afford it a fully isolated interface would be better.
>
> On 23/03/2015, ingejack@xxx.xxx <ingejack@xxx.xxx> wrote:
>> Need to know what USB cable that FT736R users are using to connect their
>> computer and SATPC32 with. It calls for a RS232 TTL cable but need to know
>> what company and cable descrition they are using if possible., Thanks for
>> any help !! Jack/KC7MG
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> 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, 23 Mar 2015 22:17:39 -0700
From: Eric Fort <eric.fort@xxxxx.xxx>
To: Amsat BB <amsat-bb@xxxxx.xxx>, Clint Bradford
<clintbrad4d@xxxxxxxxx.xxx>, clint@xxxxxxxxxxxxx.xxxx
clintbradford@xxx.xxx
Subject: [amsat-bb] antennas and radios for that which is presently on
orbit (or soon will be)
Message-ID:
<CAO2Z-nbcR51gnG9dT=9xGJRtL6GqUG8w4D_MZdPBUvyhM0nnTA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
I've been looking at getting setup to use those oscars over which one can
actually communicate via sound, spoken words, voice, etc. in real time. I
have little to no interest in listening to/for things that simply take
bandwidth to go beep beep or even send telemetry. I'm not really
interested in packet either. (there's enough terrestrial APRS coverage
that I really have no need for APRS sat coverage either.) So given what is
presently or soon will be operational, are there any transponders (fm or
linear/ssb) that I would be unable to work with 2 M2 eggbeater antennas (1
each for 2M & 70cm) and a TS-2000X multimode radio, possibly with the
addition of a good low noise preamp for each band? does anything on orbit
or planned really require the use of directional high gain antennas and a
rotator to use effectively, or should the above be expected to be suitable
for sat work for the foreseeable future given my interests?
(yes, I know many sats can be worked with an HT and directional antenna.
I've done it. Now I'm looking to put something together that I can simply
sit down and use, does not require doing a strange dance across the yard or
a public park and having to explain to PD that I'm not a terrorist trying
to contact space aliens...., and basically points and tunes itself over the
period of a given pass with only minor if any adjustment other than keying
and unkeying the mic.... eventually I'd like to possibly adapt this to
mobile operation for use while driving. What operating would I NEED rotors
and directional antennas?)
Thanks,
Eric
AF6EP
------------------------------
Message: 9
Date: Mon, 23 Mar 2015 22:54:40 -0700
From: Clint Bradford <clintbradford@xxx.xxx>
To: "eric.fort@xxxxx.xxxx <eric.fort@xxxxx.xxx>
Cc: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>, Amsat BB
<amsat-bb@xxxxx.xxx>, "clint@xxxxxxxxxxxxx.xxxx
<clint@xxxxxxxxxxxxx.xxx>
Subject: Re: [amsat-bb] antennas and radios for that which is
presently on orbit (or soon will be)
Message-ID: <D714366F-7F34-4CBF-BB4E-6380428DB4D2@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
Modest yagis are more effective than eggbeaters ... Computer-controlled
yagis with an elevation rotator is an "ideal" setup for many.
You will receive some excellent suggestions from those with more elaborate
systems than mine
Clint K6LCS
Sent from my iPod touch.
------------------------------
Message: 10
Date: Tue, 24 Mar 2015 01:57:31 -0700
From: Eric Fort <eric.fort@xxxxx.xxx>
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>, Amsat BB
<amsat-bb@xxxxx.xxx>, "clint@xxxxxxxxxxxxx.xxxx
<clint@xxxxxxxxxxxxx.xxx>
Subject: Re: [amsat-bb] antennas and radios for that which is
presently on orbit (or soon will be)
Message-ID:
<CAO2Z-nYQCHrHKWzV5o6OD_WjnMNQx0Wr1ja1nnNscm913L3QJw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
This raises the question of where, when, and why are rotors and directional
gain antennas required and/or necessary. sure,it's preferable not to be
radiating power in a direction not directed to the transponder but I'm more
so inquiring about the limiting factors here. If I make the assumption
that I have 100W or even 1000W at the antenna feedpoint,I likely can
generate enough EIRP to reach the sat with full quieting (or is getting
enough EIRP a problem here?) likely more of the issue is one of effective
rx sensitivity and system noise figure, along with sufficient rx antenna
gain to hear the down link. It would be helpful for someone to demonstrate
the required up link and down link link budgets and how they apply here.
where if at all is a setup with rotators and directional antennas required
to work current or expected sats and when can a modest station with
sufficient uplink power and excelent rx sensitivity/selectivity be expected
to get the job done?
Thanks,
Eric,
AF6EP
On Mon, Mar 23, 2015 at 10:54 PM, Clint Bradford <clintbradford@xxx.xxx>
wrote:
> Modest yagis are more effective than eggbeaters ... Computer-controlled
> yagis with an elevation rotator is an "ideal" setup for many.
>
> You will receive some excellent suggestions from those with more elaborate
> systems than mine
>
> Clint K6LCS
>
> Sent from my iPod touch.
>
>
------------------------------
Message: 11
Date: Tue, 24 Mar 2015 06:36:22 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: eric.fort@xxxxx.xxx
Cc: Clint Bradford <clintbradford@xxx.xxx>, Amsat BB
<amsat-bb@xxxxx.xxx>, "clint@xxxxxxxxxxxxx.xxxx
<clint@xxxxxxxxxxxxx.xxx>, Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: Re: [amsat-bb] antennas and radios for that which is
presently on orbit (or soon will be)
Message-ID:
<CABzOSOq-rkmyOH1iP_uxWuTsna__JEFpPW=27WaCT4uPK-kH-Q@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Eric,
100W EIRP is, in most cases, more than enough - and is generally the
most power recommended to be used on any of the linear transponders.
Of course, if your path to the satellite is blocked by trees, this
calculation may change.
Let's look at the link budget for what is probably the worst case
downlink - for SO-50 at the horizon.
SO-50 TX +24 dBm
TX Antenna Gain 0 dB
Path Loss -155 dB
RX Antenna Gain +10 dB
-121 dBm
This is probably just below usability at the horizon for most
receivers, even assuming you have zero feedline loss, so you'd need to
add more antenna gain or a preamp. If you're beaming through a tree,
subtract at least 10 dB from that signal strength. Polarization
mismatch can also affect the signal you receive with periodic fading
if you do not have switchable V/H or RHCP/LHCP polarization.
For a real world example, my portable station - an Arrow antenna, 6 ft
of LMR-240, High Sierra Microwave preamps for both 2m and 70cm, and 2
FT-817s - can hear and work all the satellites to the horizon (when
I'm sufficiently clear of obstructions and in a low noise area).
Sometimes I could use more transmit power - maybe 10 or 20 watts, but
the five watts does it in most cases. On Saturday morning, I worked
SP3QDM on FO-29, at a range of 6,913 km from here in Washington, DC,
using this portable setup
(https://twitter.com/PRStoetzer/status/551437882205171712), so it
definitely does not take large antennas or high transmit power.
73,
Paul Stoetzer, N8HM
Washington, DC (FM18lv)
On Tue, Mar 24, 2015 at 4:57 AM, Eric Fort <eric.fort@xxxxx.xxx> wrote:
> This raises the question of where, when, and why are rotors and directional
> gain antennas required and/or necessary. sure,it's preferable not to be
> radiating power in a direction not directed to the transponder but I'm more
> so inquiring about the limiting factors here. If I make the assumption
> that I have 100W or even 1000W at the antenna feedpoint,I likely can
> generate enough EIRP to reach the sat with full quieting (or is getting
> enough EIRP a problem here?) likely more of the issue is one of effective
> rx sensitivity and system noise figure, along with sufficient rx antenna
> gain to hear the down link. It would be helpful for someone to demonstrate
> the required up link and down link link budgets and how they apply here.
> where if at all is a setup with rotators and directional antennas required
> to work current or expected sats and when can a modest station with
> sufficient uplink power and excelent rx sensitivity/selectivity be expected
> to get the job done?
>
> Thanks,
>
> Eric,
> AF6EP
>
> On Mon, Mar 23, 2015 at 10:54 PM, Clint Bradford <clintbradford@xxx.xxx>
> wrote:
>
>> Modest yagis are more effective than eggbeaters ... Computer-controlled
>> yagis with an elevation rotator is an "ideal" setup for many.
>>
>> You will receive some excellent suggestions from those with more elaborate
>> systems than mine
>>
>> Clint K6LCS
>>
>> Sent from my iPod touch.
>>
>>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 12
Date: Tue, 24 Mar 2015 12:24:10 +0100
From: Andre <sats@xxxxxx.xxxxx.xx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] FT736R cable
Message-ID: <5511495A.3050201@xxxxxx.xxxxx.xx>
Content-Type: text/plain; charset=windows-1252
If fyou are going to homebuild you can skip the whole level shifter and
inverter.
Just get a usb to ttl cable an attacht the needed connector to the open
end of the cable.
http://www.ftdichip.com/Products/Cables/USBTTLSerial.htm
73 de Andre PE1RDW
Op 24-03-15 om 06:12 schreef Greg D:
> The FT-736R definitely has a serial interface, but it's not USB. It's
> the old style serial, aka "RS-232" or "Com port", except the signal
> levels are TTL (0-5v) instead of proper RS-232 (-12 to +12 usually).
> Actually it's +12 to -12, i.e. inverted in sense compared to TTL. So
> one needs a level shift and invert, which is what the circuit is for,
> and that then needs to plug into a Serial port.
>
> Most computers built in the last several years (decade?) don't have
> serial ports, having replaced them for peripheral attachments with USB
> ports. Some computers have more USB ports than my car has cup holders.
> The difference is protocol - what information gets sent over the wires -
> and there USB is very different than simple Serial. If your computer
> doesn't have a serial port, you need to buy a USB to Serial adapter, and
> then plug the referenced circuit into that.
>
> What Daniel refers to on sites like eBay are essentially the combination
> the two parts. They have a USB to RS-232 adapter, and the level
> shifter/inverter, all in one package. Good deal if you don't feel like
> a soldering project, but, yes, watch out for the drivers.
>
> Regarding the circuit, if your program only sends commands to the 736,
> and never reads information from the 736 (I don't know of any that do),
> then you can simplify the diagram to just R1 and Q1. Either way, I would
> recommend you add a small diode (1N4001 or 1N914) between the Base of Q1
> and ground (the Emitter pin), cathode at the Base, to protect Q1 from
> the negative swing of the RS-232 signal.
>
> Good luck!
>
> Greg KO6TH
>
>
> Daniel Cussen wrote:
>> Here is the wiring of a serial interface
>>
>> http://www.mindspring.com/~n2wwd/html/body_doppler_compensation.html
>>
>> For usb to TTL you need 5V TTL logic and presumably similar
>> connections and baud rates.
>>
>> If you look on ebay you can see people selling them and the rig end
>> needs the right connector, a 6 pin DIN.
>>
>> You connect the TX of the USB lead to the RX on the radio (pin3) and
>> the output of the rig (pin 2) to the RX on the USB converter and pin 1
>> to ground.
>>
>> You probably don't need the pin 6 connection as the converter will be
>> supplied by the USB power.
>>
>> Make sure to get a USB cable with drivers available for your current
>> operating system and ideally a common one so that drivers will be
>> available in many years time for future systems.
>>
>> Ideally if you could afford it a fully isolated interface would be
>> better.
>>
>> On 23/03/2015, ingejack@xxx.xxx <ingejack@xxx.xxx> wrote:
>>> Need to know what USB cable that FT736R users are using to connect
>>> their
>>> computer and SATPC32 with. It calls for a RS232 TTL cable but need to
>>> know
>>> what company and cable descrition they are using if possible., Thanks
>>> for
>>> any help !! Jack/KC7MG
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
>> Opinions expressed
>> are solely those of the author, and do not reflect the official views
>> of AMSAT-NA.
>> 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-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership.
> Opinions expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 13
Date: Tue, 24 Mar 2015 12:47:19 +0000
From: Daniel Cussen <dan@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] FT736R cable
Message-ID:
<CAF3DnKiXZV4gW4GMC1jX44vtxDOa_J39=R6Q5Sx=3_FnK0K8OA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On 24/03/2015, Andre <sats@xxxxxx.xxxxx.xx> wrote:
> If fyou are going to homebuild you can skip the whole level shifter and
> inverter.
> Just get a usb to ttl cable an attacht the needed connector to the open
> end of the cable.
Just be aware, as already said the signal is INVERTED so a 1 is a 0
and a 0 is a 1, so the logic level needs to be the opposite of normal
RS232 TTL levels, so connecting a standard 5V TTL to a connector
probably will not work with a circuit to invert the logic.
------------------------------
Message: 14
Date: Tue, 24 Mar 2015 11:46:07 -0400
From: Richard Lawn <rjlawn@xxxxx.xxx>
To: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] IC-9100 vs FT-847
Message-ID:
<CADQmrTE+8LN_cEQj+41+_FxSD01_Mdi08EQikM5hDfGEJsG2eQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I'm always considering new ways to upgrade my stations both at home and at
our summer QTH where I have been using the 847. I phased this out of the
home station when I got a Flex500A with the V/U module. It of course works
very well.
I'd be interested in any comments about the IC-9100 as a possible upgrade
for my older 847, particularly from users familiar with both radios. I
don't have a lot of room in the vacation home shack so keeping things
simple with an all-in-one makes good sense.
73s
Rick, W2JAZ
------------------------------
Message: 15
Date: Tue, 24 Mar 2015 18:13:04 +0100
From: "Michel F6GLJ" <michel-f6glj@xxxxxx.xx>
To: "SAT-DX" <satdx-bb@xxxxxxxx.xxx>, "Satdx-bb" <amsat-bb@xxxxx.xxx>,
"VE1MAM" <mmorel@xxxxxxxxxx.xxx>, <lebelb@xxxxx.xx.xx>,
<w5pfg@xxxx.xxx>
Subject: [amsat-bb] France (IN94) on AO-07B
Message-ID: <002201d06655$cb78f6a0$626ae3e0$@xx>
Content-Type: text/plain; charset="us-ascii"
I'll be on AO-07B during next pass, good footprint for NA - France QSO.
Hope meet you.
73 qro de Michel F6GLJ
------------------------------
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------------------------------
End of AMSAT-BB Digest, Vol 10, Issue 95
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