Diamond SRJ77CA (BNC) vs HYS Dual-Band Handheld Whip (BNC)

The HYS is the better choice here. Both antennas are electrically nearly identical on VHF and UHF, with the same realistic gain figures and similar physical dimensions. The real difference is price and value: HYS costs half as much at $11.99 versus $25.99, while owner ratings are tied at 4.6 stars across comparable review counts. The HYS also claims 2.5 dBi, which aligns with its actual electrical length rather than overstating performance like many budget antennas do.

The single most important differentiator is cost. For handheld VHF/UHF work, you are getting essentially the same antenna at half the price.

Buy the Diamond SRJ77CA if you specifically need the Diamond brand or have stock with it already. Buy the HYS Dual-Band for any other reason, since it performs the same way for half the money.

Get the HYS. The specs are matched, owners report equally, and the price advantage is substantial with no tradeoff in electrical performance on either band.