[Discuss-gnuradio] Regarding the 4707 tuners...

[Tom Huppi]

Hi all,

1st, an update on the ebay tuners:  I got them and sent about half
of them out as samples to folks in the US, Britain, and Australia.
The remaining were sent to TAPR.  They have agreed to handle
further distribution and collection of data.  They only received
them today so further info is not known.  Maybe Steve can provide
an update when possible.

TAPR:  I've taken the liberty of forwarding the below information
to the discuss-gnuradio mailing list as there have been recent
discussions of related issues.

GR: see above...

All:  I made a feeble effort to obtain some info from Microtune
sales, but didn't come up with anything useful and have not
followed it up.  I got a bit more info by creating an account at
Microtune, but nothing specific, and nothing that others probably
do not already have.


---------- Forwarded message ----------
Date: Tue, 30 Nov 2004 21:43:30 -0600
From: TAPR Office <address@hidden>
To: Steven Bible <address@hidden>, Tom Huppi <address@hidden>
Cc: address@hidden
Subject: RE: Are microtune 4707's worth having?

Well, I've learned a thing or two since the package arrived.  Perhaps
everyone else already knew about these.

Microtune bought Temic-Telefunken in 2000.  Microtune made chips.  Temic
made tuners.  The 4707s are marked Temic.  However searching for that
instead of Microtune didn't help a lot since it's not a unique name.
However I did happen upon the following docs on a Temic tuner.  Perhaps the
I2C information is useful?

http://www.intel-u-press.com/usb_dbe/Chapter14/4036ds.pdf
http://www.intel-u-press.com/usb_dbe/Chapter14/4039ds.pdf
http://www.intel-u-press.com/usb_dbe/Chapter14/4039ap.pdf

Those appear to be for a tuner only while the 4707 also contains a data
uplink of some sort from what I read.

Funny is shows up on a USB site .... and I couldn't see a tuner used on the
schematic of evaluation board documented there:

http://www.intel-u-press.com/usb_dbe/Chapter14/

Unfortunately searching with either of the two part numbers on the tuner
results in no data sheets, only places that claim to have inventory.
73 and Regards,

Laura Trujillo Koster, TAPR office manager
John Koster, W9DDD, asst. TAPR office manager

Information provided in response to questions about technical matters  or
operating practices does not reflect the official position of TAPR, only
the experience or opinion of the office staff.

Please use plain text for messages, don't put us in your address book or
'contacts' list,  thanks..

To help stop virus propagation, please consider using an email client other
than Outlook or Exchange.