[aprssig] Multi control station situational awareness - (kenwoods)

[Robert Bruninga]

Going from memory (always dangerous), I think the D700 used FLAT audio
tones – no preemphasis, no-demphasis for best discriminator performance.



But most home built systems just connect to Speaker audio (deemphasized)
and Mic input (emphasized) which changes tone balance by + and – 6dB
compared to flat audio.



The D710, I think compromised from flat audio a bit to maybe include 3 dB
of tone skew to improve performajnce with slapped together TNC radio combos…



Bob





*From:* aprssig <aprssig-bounces at lists.tapr.org> *On Behalf Of *Stephen H.
Smith via aprssig
*Sent:* Wednesday, December 4, 2019 11:36 AM
*To:* Keith VE7GDH <ve7gdh at rac.ca>; TAPR APRS Mailing List <
aprssig at lists.tapr.org>
*Subject:* Re: [aprssig] Multi control station situational awareness -
(kenwoods)



On 12/4/2019 10:36 AM, Keith VE7GDH wrote:

Bob WB4APR wrote…


By the way, the D700 TNC is a REALLY mediocre-performing device as well.



How does the D710 compare to the D700? Does it do any better at decoding
than the older model?



-- 

73 Keith VE7GDH





I simply don't know.  I've never had a D710 or played with one.



I continue to use my D700 because it makes a much tidier installation in my
car than the '710 would.   All the connections are to the main radio
chassis under the seat; not to the head.  On the D710, everything sprouts
out of the control head (mic, ext GPS, ext serial data, etc) that makes for
a much messier install.   Not to mention those stupid Macintosh 8-pin
mini-DIN serial cables.    [Why is it that Kenwood doesn't seem to be able
to accept the otherwise nearly universal convention for serial connectors
that DCE devices should be a female DB-9 socket,  so a standard
male-to-female DB-9 "extension cable" can connect the radio to a normal PC
serial port -- i.e. without gender changers or null modems?]

Further the '710 head is wider and won't fit into the console space in my
Jetta TDI where my 700 is located, especially with all those cables
sticking out.


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