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JAQ's Blog - Electronics, Microcontrollers, DEC Minicomputers, Raspberry Pi, Airplanes and other stuff....
Total: 31 results found.
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TRS-80 Model 1 FreHD Expansion Interface
Fred Vecoven's FreHD Hard Disk emulator has been a very popular upgrade for TRS-80 Model 3 and 4 users since its launch in 2014. If you have a Model 1 with a
Shack expansion interface ...
GPS Connection to Hans Summers Ultimate 3 QRSS Kit
... GPS modules. The Ashtech g8 is a late 1990's GPS module designed for integration into OEM equipment. I picked up a several at an Amateur
junk sale a few years back and hadn't really put ...
TRS80 Model 4 Rebuild - Part 1
... in the late 90's and was staggered when I went over to pick it up because it was the machine that Bill Porter (the owner of Porterfield Computers... the
Shack agents) used for all his software development ...
SBC6120 PDP8 Replica - Part 2
... available in retail stores down here (not sure about the US... I heard that
Shack was selling Arduino so they may have them) and these can be easily modified to connect J5 and J10. Here ...
CAT Interface for eBay AD9850 DDS Modules - Part 2
After changing from using the Yaesu FT-817 protocol I picked the ICOM IC-725 as a reference having never seen one. It seemed fairly representative of the use case for the DDS module as a generic ...
CAT Interface for eBay AD9850 DDS Modules
... protocol so the DDS module can be used in a rig and powered by Ham
Deluxe. I started by trying to implement the Yaesu FT-817 CAT protocol. It seemed fairly simple and didn't require a ...
eBay AD9850 Module Test Board
Test board for the cheap eBay DDS modules. The board is based on a design by WB2V with software enhancements by AA0ED and AA0ZZ. The cheap AD9850 DDS modules currently available on eBay are ...
eBay AD9850 Module Pinout
The cheap AD9850 DDS modules currently available on eBay are a great starting point for a signal generator project but are a little short on documentation. The pinout and relationship to ...
FT736 and Ham Radio Deluxe
KA6BFB/N6BIL FT-736R HRD interface (http://home.comcast.net/~tinkyr/736/N6BIL%20Hardware%20Emulator.htm) assembled from through hole parts. Emulates an FT-847 so Ham
Deluxe can control the RX ...
Codan N3ZI DDS
Another project in progress.... installing an N3ZI DDS2 into a Codan 6801 Marine transceiver. The N3ZI works well as a crystal replacement and requires no buffer amplifier in ...
SI570 QRSS Beacon
My MEPT QRSS and WSPR beacon is controlled by a DLink DSL-502T running OpenWRT. The QRSS and WSPR messages are generated by directly controlling the frequency of an Si570 chip. The interface ...
Who is using the water?... the bore monitor speaks
... For 2 years this worked well and then the Packet Wacker died. Around this time i had been playing with DLink DSL-502T ADSL models and reflashing them with OpenWRT to provide Amateur
IGate services. ...
Building a DLink DSL-502T Based IGate - TNC Schematic and Firmware
As mentioned elsewhere the TNC we use in the Igates is based on the ATMega8 based TNC design from Henry Carl Ott (N2RVQ). For those interested in constructing their own here is the schematic ...
DSL-502T IGate Front Panel LEDs
There are 5 LED's on the front of the DSL-502T. Not much to say about the Power LED. If the power is connected it should be lit. ...
Programming the DSL-502T IGate using “Damn Small Linux”
Items you need to get started: 1. The “Damn Small Linux” ISO from http://distro.ibiblio.org/pub/linux/distributions/damnsmall/current/current.iso burn to a CD (approx ...
Mangaging your FT-7800R memories.... with a VX5 bonus
... added bonus I didn't expect. I don't have one of the more recent Yaesu
s such as the VX2, VX6 or VX7 but FTB-7800 supports exports for KC8UNJ's Commander software for each of these ...
Building a DLink DSL-502T Based IGate - The TNC
In addition to configuring the DLink DSL-502T routers for the IGate project we also needed a TNC to connect between the
and the serial port. Our TNC selection was based on the following criteria: ...
Building OpenWRT for DSL502T Appliances - Removing Modules
When building OpenWRT Kamikaze 8.09.2 for the DSL502T there are a number of mobiles included by default that are important if you are using the device as a modem but unnecessary if you plan to use the ...
DSL502T + Ruby + Webrick + YAML = DIY Monitoring Appliance
... For 2 years this worked well and then the Packet Wacker died. Around this time i had been playing with DSL502T's to provide Amateur
IGate services and had a build environment configured for ...
Building a DLink DSL-502T Based IGate
This project came about because a group of amateur
operators in Auckland wanted to improve the APRS receive coverage by using IGates to add receive only coverage around South Auckland. We ...
PDP8 SBC6120 FP6120
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