- Joined
- Jan 6, 2009
- Messages
- 232
Hey Folks,
Hoping someone might be able to identify this part I picked up off eBay. The seller figured it was a pre-amp since it looks like a lot of Celwave pre-amps (albeit, a little smaller) but when I got it in and started looking at it, I am not sure. I don't have access to RF equipment to test it with (other than radios and SWR meters).
Here is the info printed on the label (visible in the photos as well):
CELWAVE
MODEL 639080 REV 8
FREQ 406 - 512 MHZ 806 - 920 M
Since there was no input/output only J1 and J2, this made me leery that it wasn't actually a pre-amp. The box is sealed (unlike Celwave pre-amps I have used before), so there is no popping it open to see what kind of guts are in it.
About all I can find on the Internet it that is could be used in a Celwave Multicoupler shelf. I found a model for sale of TDF6491A but still can't find out exactly what part this unit plays in the multi-coupler. Seems too small to be a pre-selector/filter and why would it have power. I applied 12VDC and there was no clicking or anything so I don't think it is a relay.
Thank you in advance for any input!
john
Hoping someone might be able to identify this part I picked up off eBay. The seller figured it was a pre-amp since it looks like a lot of Celwave pre-amps (albeit, a little smaller) but when I got it in and started looking at it, I am not sure. I don't have access to RF equipment to test it with (other than radios and SWR meters).
Here is the info printed on the label (visible in the photos as well):
CELWAVE
MODEL 639080 REV 8
FREQ 406 - 512 MHZ 806 - 920 M
Since there was no input/output only J1 and J2, this made me leery that it wasn't actually a pre-amp. The box is sealed (unlike Celwave pre-amps I have used before), so there is no popping it open to see what kind of guts are in it.
About all I can find on the Internet it that is could be used in a Celwave Multicoupler shelf. I found a model for sale of TDF6491A but still can't find out exactly what part this unit plays in the multi-coupler. Seems too small to be a pre-selector/filter and why would it have power. I applied 12VDC and there was no clicking or anything so I don't think it is a relay.
Thank you in advance for any input!
john