Page 2
ID-50A does not include Bluetooth wireless connectiv- can really do. ity. While the ID-50A is like the ID-52A in that it in- cludes two separate receivers, the ID-50A restricts you to simultaneously monitoring either two FM sig- nals or an FM and a D-STAR signal —...
Page 3
GPS logs, audio recordings, and more. By accessing the appropriate memory card. Icom doesn’t supply menu setting, the ID-50A’s memory card can function like an external hard a memory card with the ID-50A, but drive whenever you plug the radio’s USB cable into your computer.
Page 4
500 memory channels just to store FM broadcast In addition to the SMA antenna jack atop the ID-50A, you have a Global frequencies (who listens to that Positioning System (GPS) antenna and two concentric knobs. The top many stations?).
Page 5
ID-50A’s GPS received enough signals that it established a fix in less than 60 seconds. Figure 1 — The ID-50A’s band scope display. Figure 2 — Programming the ID-50A was a snap with Icom’s CS-50 software. 44 June 2024 www.arrl.org ...
Page 6
Thanks to the well-written tutorial, operating D-STAR with the ID-50A was a breeze. Within minutes I I would be remiss if I didn’t mention the ID-50A’s pic- accessed a repeater, used its gateway to reach a ture-sharing ability. Although it won’t display colorful...
Page 7
GQ Electronics EMF-390 Multi-Field, Multi-Function EMF Meter and RF Spectrum Power Analyzer Reviewed by John The meter includes a high-con- Leonardelli, VE3IPS trast black-and-white LCD screen jleonardelli@arrl.net display with a single LED indicator with four function buttons. The In this review, we’ll delve into the LCD display provides real-time key features of the EMF-390 and readings.
Page 8
Table 2 GQ Electronics EMF-390 Manufacturer’s Specifications (Not tested in the ARRL Lab) Audible alarm Beep/siren Visual alarm Green, red LED ° Operating temperature and humidity 5 to 40 C, below 80% relative humidity Working voltage 3.6 – 3.7 V dc Display LCD dot matrix, backlight, 1.2 ×...
Page 9
the ARRL Lab used EZNEC antenna-modeling soft- ware to estimate the field strength near the inverted- antenna end insulator (see Figure 8) owned by the author, and found that the measurements of this in- strument underestimated the EMF readings by ap- proximately 30 dB! This instrument should not be used for any RF-safety or RF-compliance measure- ments.
Page 10
nel 6. I observed signal levels increasing as I got closer to the devices. I have another temperature sensor, which found that too, and I was surprised to see it was on 915 MHz, another ISM band. I then started to look at the Wi-Fi band using the RF Browser mode, and it showed a sweep of this band.
Page 11
Lab Notes: GQ Electronics EMF-390 Multi-Field, Multi-Function EMF Meter and RF Spectrum Power Analyzer Although the text of the review makes it clear that this related — EZNEC. (EZNEC can now be downloaded free instrumentcannotbeusedtoaccuratelymeasurefield of charge at www.eznec.com.)Thenear-fieldcalculator strength, because the manufacturer’s documentation that is part of EZNEC showed results that reasonably makes reference to EMF exposure, the ARRL Lab took closely agreed with the ARRL RF Exposure Calculator,...
Pacific Antenna Active Antenna Kit Reviewed by Paul Danzer, N1II n1ii@arrl.net This kit consists of a broadband, untuned amplifier designed to be useful throughout the frequency range of 100 kHz to more than 200 MHz. It is built on a high- quality printed circuit board, measuring approximately 2.5 ×...
Page 13
Figure 10 — The signals) or not helpful. When it is used, either with the smaller tip was easier included telescoping antenna or with a random wire to use than the lar- ger, standard tip in extending the telescoping antenna, any signal may be several places.
Need help?
Do you have a question about the ID-50A and is the answer not in the manual?
Questions and answers