Manufactured 3.5 MHz receivers
Basic features are good, but the mechanical durability might be a problem. Not waterproof, in rainy weather the device should be protected from rain. PJ-80 is a good device for beginners. A practical device in a typical radio-orienteering event and has even been used successfully in international competitions. Inexpensive device that may need a little tuning.
For more demanding runners. As CompactFlash 3.5 F, but with better technical characteristics.
3,5 MHz superheterodyne for ARDF. Ergonomical solution – single hand operation. High sensitivity and selectivity. Crystal IF filter. Optimized antenna with sharp direction pattern and high front-to-rear ratio. Sensitivity control range 120 dB in 8 steps. Shock-resistant, waterproof ABS house. Very light weight (220g) and compact device. Power supply: NiCd battery.
3,5 MHz superheterodyne for ARDF. Ergonomical solution – single hand operation. High sensitivity and selectivity. Crystal IF filter. Optimized antenna with sharp direction pattern and high front-to-rear ratio. Sensitivity control range 120 dB in 8 steps. Shock-resistant, waterproof ABS house. Light weight (350g) and compact device. Power supply: NiCd battery.
RigExperts version of DF1FO's FJRX85 receiver.
Digital VFO, LCD indicator, Two Sense buttons, Run timer, Fox time remaining timer, Auto power off timer, Two-language interface (English/German), Digital rangefinder, Automatic attenuator, 6 settings memories, Acoustic S-meter, Fox proximity alarm, Internal battery charger, Low battery alarm.
Do-It-Yourself receivers
You should check the availability of the components before starting new project. The attached instructions are expected to be feasible and the technical features are compatible with the transmitters we use.
Basic features are good, but the mechanical durability might be a problem. Not waterproof, in rainy weather the device should be protected from rain. PJ-80 is a good device for beginners. A practical device in a typical radio-orienteering event and has even been used successfully in international competitions. Inexpensive device that may need a little tuning.
SM5CJW 80m receiver (instructions in swedish)
Good and affordable 80m receiver designed by LZ1PPL.
