Phelps Dodge 981-PB4 800 MHz Bandpass Filter Preselector 900 MHz Ham Conversion? Product Details: Manufacturer: Celwave Model: 981-PB4 Type: 4-Cavity Bandpass Filter / Preselector Frequency Range: Label states 816-821 MHz (Tunable within the 800 MHz band). Application: Originally used for commercial repeater sites to filter input signals. Potential Use: Great for commercial replacement or for Amateur Radio operators looking to modify/retune for 900 MHz project Connectors N-Type[f], BNC We have two of these at the start of this listing.
Frequency (816-821 MHz): This specific range covers the "input" frequencies (Mobile Transmit) for older 800 MHz Public Safety or SMR trunking systems.
Excellent previously used condition.
Price is per Unit,
If you want more than one, change the Buy It Now price to the number you need.
Picture is of one of them - both are in the same condition.
We typically ship within one business day! International buyers are responsible for any customs/duty fees.
Most of the parts we sell are vintage New Old Stock parts.
We use high quality shipping supplies and biodegradable peanuts to make sure your parts arrive safely.
NOS (New Old Stock) parts are Genuine Factory Original parts.
NORS (New Old Replacement Stock) parts are original vintage aftermarket parts.
NOS and NORS does not necessarily mean the parts are perfect.
Manufacturing technology was not the same as it is today so imperfections should be expected.
Also, these parts may have been in storage for 40-80 years and could be dusty, greasy or have surface rust, spider webs, etc.