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This page last updated
05/01/2017
Note: All VNA information from below has been moved to a new separate page VNA
NEW: AutoSW 10MHz and 122MHz Buffer for Hermes
I wanted a way to get the 122.88MHz clock [called "125MHz" on schematic] out of the Hermes similar to the Mercury EXT CLK [J1]. A SN65LVDS1DBVR looked to be the answer. But how to "glue" it onto Hermes ? Since I also want to connect my LPRO-101 as well I took Mike's [KF4BQ] AutoSw 10MHZ design and added the line driver. Since I did not have any of the parts I also changed some of the parts to a larger footprint and added some power decoupling similar to Hermes. Document link below has the info. Also a zip of the Gerbers following. Thanks to KF4BQ for his work on the AutoSW design.
AutoSw_10_MHz-122MHz_Buffer.pdf
AutoSw-Buffer_Gerber.zip
K9IVB Hermes info More info at Hermes wiki page
This is a place where I put my info while working on the Hermes V1.8 manual
Recently moved the old out of date links to the bottom of the page !
.JPG)
Made a temporary case from the top U of an old CD drive
and put an
acrylic picture frame on top to keep various detritus
from damaging the board,
until the Apollo and TAPR case become available.
Click here for a larger picture
I have not as yet found an accurate TAPR BOM "as built" so please don't ask .
TAPR has never released the "as built" BOM. The TAPR and
Apache Labs BOM are not the same !
Here is a list of mating connectors and substitute parts.
See link below:
Hermes mating conn
ref.xls
NEW [5/1/2017]: Vasiliy K3IT has
provided the BOM below. This is a modified Apache BOM.
There are quite a
few corrections based on email threads posted on the reflector.
The changes from the original Apache BOM are highlighted with
a blue font.
K3IT-1010_HERMES_PROD_BOM_08112012_Bot_Top.xls
HERMES_PROD_SCHEMATICS[gama_v18_10-09-2012].pdf
New - Component Placement Guide courtesy of Terry Long N8AB
Hermes_Component_Placement_Guide_20121105.pdf
Revision 2 Hermes End Plates
Hammond endplate info including Apollo courtesy of Ian Guffick G7JXY
New
Hermes_Hammond_Frontpanel_Cutouts_V2.pdf
Hermes_Hammond_Frontpanel_Cutouts_V2.zip DWG in ZIP format format
For comparison purposes one of the Apache Labs Versions
Some musings on various
component values for R17 & R18 that connect to J1 Transverter.
The
value of C39 can be changed, but it was set at 100nf in cell F3 [$F$3 in
equations].
None of the 3 components were installed on the TAPR builds
and all appear to be 0805 SMT parts.
The spreadsheet is not a
sophisticated user friendly endeavor, but a way that I tend to do
repetitive
math problems. Knowledge of Excel formulas will be helpful. Link
Below:
Some links to some excellent programs that were used:
Graphisme et utilitaires - PhotoFiltre ver 6.53
[in Downloads - which is located in top left Left column] http://photofiltre.free.fr/frames_en.htm
Extract to anywhere and run. Nice program and features. Simple editing & easy to useDassault Systems DraftSight - Free DWG reader editor
http://www.3ds.com/products/draftsight/overview/Schindler & Shill Gmbh - GerberLogix V280 Gerber viewer - great program
http://www.easylogix.de/products_detail.php?prog_id=1
Some Vendors that you may have an interest:
SMA Adapters - plus lots of other cables and accessories.
SMA to BNC ($2.89) and SMA to UHF adapters ($2.89)
Wired Communications, LLC.
7342 E. Quail Track Road
Scottsdale, AZ 85266
http://www.wiredco.com/Amateur_Ham_Radio_s/1827.htmInexpensive crimp tools if you are doing 26 J16 pins
ACC175 Crimper for AMP pins $17.50
ACC185 Crimper for Anderson Power Pole $39.99
http://www.maxxprod.com/mpi/mpi-4.html
Maxx Products International, LLC.
815 Oakwood Road, Unit D, Lake Zurich, IL 60047U10 [LTC2208CUP] possible heatsink (8 pieces) from Early Bird Savings
{LTC2208CUP - UP 64 pin QFN is 9 x9 mm}
8 x Aluminium Heatsink Fr Computer DDR VGA RAM Memory IC Chipset Cooler Cooling
SKU:CCL026 $2.84 ppd to USA 15 x 15 x 8 mm
http://www.earlybirdsavings.com/p/8-x-Aluminium-Heatsink-Fr-Computer-DDR-VGA-RAM-Memory-IC-Chipset-Cooler-CCL026
Old or out of date links
Change Notice for Hermes User Manual Ver 1.7.pdf
Old original Hermes End Plate information in different formats
Hermes End Plates.pdf
Hm_EndP.zip DWG in ZIP format
Hm_EndP.WMF
Hammond endplate info including Apollo courtesy of Ian Guffick G7JXY
Old
Hermes_Hammond_Frontpanel_Cutouts_V1.pdf
Hermes_Hammond_Frontpanel_Cutouts_V1.zip DWG in ZIP format format