| Home |
| Search |
| Today's Posts |
|
#4
December 10th 09, 12:18 AM
posted to rec.radio.amateur.antenna
|
|||
|
|||
installing isolator on a transceiver
Dave Platt wrote:
In article , MTV wrote: Maybe just an RF isolator in the AC line? That would be solving an entirely different problem. At many sites, it's necessary to install an isolator/circulator between each transmitter and antenna. This prevents strong RF signals from *other* transmitters at the site from coming back down the feedline into your energized transmitter, intermodulating with your own signal in the transmitter's finals, and bleeding nasty intermod products back out up into your antenna. This is a bit tricky to do if your radio doesn't have separate "transmit out" and "receive in" ports. If you stick an isolator between a single-poort transceiver and its antenna, the receiver won't hear the incoming signal very well at all.. most of the received signal power will be circulated away into the circulator's dummy load. You either need to open up the transceiver and separate out the TX and RX ports, or figure some way to bypass the circulator (e.g. a pair of relays) when receiving. Thanks for the info MTV |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Re-Installing software | Scanner | |||
| Q: FM Antenna & Ground Isolator | Shortwave | |||
| Need help installing internal preamp | CB | |||
| NEED HELP installing GSM antennas | Antenna | |||
| FA: Microwave Associates 3 port Isolator Circulator UHF? | Swap | |||
![MTV[_2_] is offline](https://www.radiobanter.com/images/SultanThemeVB3R/statusicon/user_offline.gif)
Threaded Mode
