I've used a Sporty's Pilot Shop JD-100 handheld for about 6-7 years. It is a scanner/receiver only.
The JD-100 has 1,000 comm frequencies from 118.000 to 142.975 MHz and 7,200 comm frequencies from 220.000 to 399.975 MHz for the military air band. I use 4 AA alkalines in mine and have the accessory metal belt clip that screws on the back, yet permits battery access. It also has a 9 volt dc socket, squelch, on/off volume and keylock button. You can enable or disable a key tone feature. Has 19 channels and one Priority channel in memory, low battery indicator, also pushbutton illumination of LCD display. Jack for earphones, also. Detachable flex antenna about 9 inches long.
You can scan the 20 memory channels or do full freq scan. I'm very satisfied with it.
Audio output is 250 mW so hold to ear-OK at noisy airshow.
Adjacent channel rejection-more than 50 dB
Sensitivity- 1.0 microvolt for 6 dB SN
Selectivity- more than -60 dB at +/- 25 KHz
Band Width- more than +/- 7 KHz at -6 dB
Freq Stability- +/- 0.002%
Power Consumption- 200 mA full volume, 60 mA watch & wait
Weight- 0.79 lb with batteries.
Construction has proved to be rugged. A wrist loop is also provided and handy. It is FCC-approved and CE approved if in Europe.
See www.sportys.com or phone 1-800-SPORTYS