Nagoya NA-701G (GMRS) vs TIDRADIO TD-771 GMRS (SMA-Female)

The TD-771 is the clear winner for GMRS use. The single most important differentiator is electrical length: at 0.60 wavelengths, the TD-771 operates as a legitimate 5/8-wave antenna with realistic gain around 3.0 dBi, while the NA-701G's quarter-wave design delivers only about negative 0.4 dBi despite its inflated 2.15 dBi claim. The NA-701G's marketing overstates performance by roughly 2.6 dB, which is misleading. The TD-771's claimed gain of 2.15 dBi is actually conservative and supported by its physical dimensions.

The NA-701G makes sense only if you prioritize pocket portability and are willing to accept genuinely poor performance. The TD-771 suits anyone wanting practical GMRS performance without breaking the bank. At less than $10 with superior electrical design, the TD-771 delivers better real-world results while costing half as much. The higher overall score difference, 90 versus 76, reflects this substantial gap in actual antenna engineering. Buy the TD-771 unless your handheld radio's form factor physically cannot accommodate a 385 mm antenna.