[Moon-Net] A few Map65 questions
Edward R Cole
kl7uw at acsalaska.net
Tue Nov 29 09:28:51 CET 2016
At 08:41 PM 11/28/2016, Bob Atkins wrote:
>Thinking about adding MAP65 and wondering about a few things:
>1 - The cheapest and easiest way to do (single polarization) this
>for under $200? It looks to me like this would be by using a
>FunCube Pro+ dongle for around $170. As far as I can tell you can
>couple this directly (USB) to a Windows PC running MAP65 without
>needing Linrad or other intermediate software. Does this sound correct?
I think that is correct but check with Serge-VE1KG as I believe he is
using the FuncubePro+ and can probably coach you thru setting it up;
I do not have the Funcubepro+. I just got one of the original
RTL-SDR but not planning to use it on eme.
>2 - MAP65 is said to takes up more processor resources than WSJT.
>Would a quad-core I5-2500 @ 3.3Ghz be fast enough to run a FunCube
>Pro+ and MAP65 system? I have an older 2-core laptop that struggles
>when running SDR software with a cheap SDR dongle, but that machine
>is about 6x slower than the desktop I use for radio applications.
>I'd rather not have to buy a new PC!
I am running MAP65 on a 2008 duo-core 2.3 GHz cpu under winXP32 SP3
with no issues. I just bought a new Dell Inspiron i5-6400 3.3 GHz
desktop with 8GB, 1TB HD and 1GHz ethernet to replace using my
Inspiron laptop for general purpose internet/e-mail/website
maint. Laptop goes back into computer briefcase for travel
usage. Got a good cyber-monday price and it arrives tomorrow by Fedex.
The XP computer will continue to do the ham radio control sw but will
be off-line so will not need to worry about cyber attacks with the old OS.
>3 - Finally a real beginner question. How does MAP65 handle Tx? Does
>(can) it control the transceiver Tx frequency via CAT? Does the
>operator dial in the Tx frequency on the transciever? It seems to me
>that you'd be running separate Tx and Rx systems. How to you
>coordinate frequencies? Or am I missing something here?
MAP65 keys the radio using a com port. Probably you only have USB
ports on a modern computer so will need USB/RS232 conversion cable so
you can utilize either DTR or RTS line for keying Tx. For eme that
should be a sequencer that then controls all transfer from Rx to
Tx. You may need a computer interface box (I built my first one HB):
For controlling Tx frequency of the radio from MAP65 I use Trakbox sw
by IK7EZN. It works with several common radios. Free sw and pretty
easy to set up. It uses a com port as well.
What radio will you use for Tx?
>I'm sure the answers to all these questions can be found on the web
>and in the manuals, but due to a neurological problem, I have
>trouble reading and technical manuals are the hardest things to
>read! So please forgive "dumb" questions!
73, Ed - KL7UW
"Kits made by KL7UW"
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