FAQs about Signal Transmission
Q1. How do I transmit a signal received from an antenna to a building 200 feet away?
A1. First, you must convert the single-ended signal to a pair of differential signal (LVDS, RS-422, NECL, or LVPECL), because transmitting a weak, high-speed single-end signal over a distance over even 20 ft is not recommended.
The PRL-430AN-SMA, dual channel ECL receiver, is a product developed for NASA for this type of applications.
A2. The PRL-432 has dual channel differential 50 Ω SMA ECL inputs and differential 124 Ω Triax outputs. Long distance transmission using the 124 Ω output is not recommended, because the shielded 124 Ω cable needed is costly and has lower bandwidth compared to those of standard 50 Ω cables.
A4. The PRL-414 is a 1:4 TTL fanout module that has been tested by the US Coast Guard for driving 100 ft long 50 Ω cables.
A5. The PRL-420TD is a dual channel single-ended TTL to complementary TTL converter.