Welcome to CT1ENI’s website!

Amateur radio since 1992, I love radiofrequency transmission and to experiment on DX and digital communications.

Right now, my little shack consists of the following equipment:
For the HF bands I use a Kenwood TS-140s with a multiband cat-mustache dipole antenna, and a homebrew Longwire. For VHF and UHF have a Kenwood TM-g707 (dual-band) and a fiber-glass vertical Diamond X-200.
For APRS I am using a Raspberry Pi 2B with Xastir on a Raspbian Linux platform. It’s an excellent way to have your digital communications system with a stable OS and low power consumption.

Please, feel free to browse over this website and send me your suggestions to ct1eni@outlook.pt.

Note: this website is originally written in English, so you have to rely on some flaws in the automatic translation for your language.


Bi-cone antenna

The Bi-Cone Antenna is a Dipole Antenna The Bi-Cone antenna is essentially a finite length dipole antenna that exhibits very wide resonant bandwidth performance. This is unlike the more common 1/2 wavelength dipole antenna, which is resonant at only a narrow band of frequencies. In addition, the Bi-Cone antenna range of near resonant frequencies is …

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Kantronics KAM repairing

Excerpt from IK5PWC website (Thanks to Luca): “KAM Repairing My dear Kantronics All Mode is a pretty old model: I remember I bought this unit in a famous italian ham rally in 1991, equipped with 4.0 firmware version which later I upgraded to 5.0 using a special offer from the italian reseller (I received all …

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APRS recommended settings

I strongly recommend you use the following settings in your APRS client software: It is important that the APRS users and sysops correctly configure the APRS client software for better performance of the national network. It should, above all, ease the operation of mobile stations, since it has reduced condition of range. Seasons …

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