1. I plan to set-up a 15W cont. duty UHF MICOR as the local UHF ham repeater.
I'm sure that this will place an end to the reliability problems we had with the home-made solutions we applied before, BUT the recvr has not the pre-amp option.
How realy we are in need of it? Will it be deaf or what?
2. Any good source to order new crystals? ICM?
Do I need an RF pre-amp for the UHF MICOR?
Moderator: Queue Moderator
Do I need an RF pre-amp for the UHF MICOR?
There are 10 kind of people: Those who understand binary and those who don't.
A stock MICOR is rated at .5 uv for 20 db
With the factory pre amp, you should get .25 uv.
With an after market pre amp I have seen .1 uv or less.
Using a pre amp depends alot on the enviroment of the site.
If there are a lot of other transmitters, you might not relize any improvement because of the other strong RF fields over loading the front end of your receiver.
With the factory pre amp, you should get .25 uv.
With an after market pre amp I have seen .1 uv or less.
Using a pre amp depends alot on the enviroment of the site.
If there are a lot of other transmitters, you might not relize any improvement because of the other strong RF fields over loading the front end of your receiver.
Dennis
thanks Dennis,
I I'll leave it as it is. I think it's sensitivity is adequate for local, in-city use. It's gonna be placed on top of a tall building inside the city harbor where you're lucky if you can place your antenna 3ft apart of the next one...
I I'll leave it as it is. I think it's sensitivity is adequate for local, in-city use. It's gonna be placed on top of a tall building inside the city harbor where you're lucky if you can place your antenna 3ft apart of the next one...
There are 10 kind of people: Those who understand binary and those who don't.