https://www.locuradigital.com/en/handheld_antennas/nagoya_antennas/nagoya_na-701_sma.htm
NA-701 NAGOYA Biband antenna Length 20 cm walkies SMA male connector
Nagoya NA-701-SMA Dual-band 144 / 430 Mhz antenna with a gain of 2.15 dBi, a length of 20 cm, and a maximum of 10 watts of power. The Nagoya NA-701-SMA antenna...
antenna lengthmale connectornagoyawalkiessma
https://www.neven7.eu/p/telescopic-antenna-40mhz-6ghz
Telescopic Antenna 40 MHz - 6 GHz, Adjustable Length
Telescopic antenna for 40 MHz to 6 GHz with adjustable length from 21.8 cm to 114.5 cm. Ideal for HackRF One.
telescopic antennamhzghzadjustablelength