Интересную вещицу нашел в 409shop.com:
SURECOM SW-102-VU V.S.W.R. POWER METER and frequency counter по 55.50 USD
http://www.409shop.com/409shop_product.php?id=122178Спецификации:
Frequency range: 100 - 520MHz
Measurable power range: 0 - 120W
Input Frequency counter
Maximum power: 120W
Impedance: 50Ω
Size: W 76 X H 77 X D35 mm.
Weight: <220 grams
Battery : 3.7V Li-ion Rechargeable Battery
Кто то пробовал?