Observations, Experiments, Discussions about Amateur Radio
I found the very same transistor radio I had when I was around 5 years old, an eBay purchase which I was able to repair. The post Repairing a Vintage Realistic Transistor Radio first appeared on N1UGK’s Amateur Radio Blog .
I explore the TI-92 Plus (and similar) TI graphing calculators after a few simple repairs as well as introduce the PCUI (Pocket Computer Universal Interface) support for these calculators. The post Texas Instruments TI-92 Plus Graphing Calculator first appeared on N1UGK’s Amateur Radio Blog .
I began development of a Universal Pocket Computer Interface for use with Sharp, Casio, and Texas Instruments pocket computers and graphing calculators. The post Pocket Computer Universal Interface first appeared on N1UGK’s Amateur Radio Blog .
ARISS commemorated the 68th anniversary of the launch of the world’s first satellite - Sputnik-1 - by transmitting a series of space cooperation-themed SSTV images from the International Space Station (ISS) from October 3 until October 9th. The post SSTV from ISS – World Space Week 2025 first appeared on N1UGK’s Amateur Radio Blog .
I used the Xtreme Technologies XLink BT landline bridge to make and receive phone calls on a Western Electric Model 500 rotary phone and an old cordless phone from the 1980s. No landline service needed, just an Apple or Android phone with Bluetooth. The post Using a Landline Phone in 2025 first appeared on N1UGK’s Amateur Radio Blog .
The Casio FX-702P was Casio's first BASIC programmable pocket computer. The associated printer, the FP-10 mini electrostatic printer is quite an experience. The post Casio FX-702P Programmable Calculator first appeared on N1UGK’s Amateur Radio Blog .
There was in fact AM Stereo broadcast in the U.S. and elsewhere in the world, back when AM radio was more popular. The Sony SRF-A1 Walkman was one of several AM stereo receivers. The post AM Stereo with the Sony SRF-A1 first appeared on N1UGK’s Amateur Radio Blog .
The Casio FX-750P is one of several pocket computers which utilized removable RAM Cards for quickly swapping programs and/or data. The post Casio FX-750P Personal Computer first appeared on N1UGK’s Amateur Radio Blog .
After a long break from using scanners, I stumbled across the Uniden SDS100. Quite a bit has changed since my last scanner from the 90s. The post Uniden SDS100 – Scanner Radios in 2025 first appeared on N1UGK’s Amateur Radio Blog .
The Casio FX-880P paired with the FA-6 expansion is quite capable for various purposes. As an experiment, I ported the banner and maze programs and tried the globe program as well. The post Casio FX-880P Personal Computer first appeared on N1UGK’s Amateur Radio Blog .