Binary Radar Serial Number

What is a binary radar serial number?

A Binary Radar is an eight-digit serial that reads the same forward and backward and contains exactly two distinct digits. For example, 44244244 reverses to itself and uses only 4 and 2. The PCGS term repeater radar is also used for this two-digit palindrome concept.

Binary Radar vs radar, binary and super radar

Radar describes the palindrome shape, regardless of digit count. Binary describes exactly two different digits, regardless of arrangement. Binary Radar meets both rules. Super Radar is a radar whose six inner digits are identical; it can overlap Binary Radar when the outside digit differs from the repeated center. A binary radar may also be a repeater or a 180-degree rotator if its arrangement meets those separate rules.

See the Radar guide and Binary guide, plus the Super Radar guide and Radar Repeater guide guides.

Binary Radar examples and non-examples

Every example is eight digits and the palindrome check reads from the first and last positions inward. 00111100 is a true binary radar because it uses only 0 and 1. 00888800 is a binary radar and also reads the same when rotated 180 degrees using standard strobogrammatic digits.

How rare is a Binary Radar?

Choose the two digits in 45 ways. A palindrome is determined by its first four positions; 2^4 = 16 possible halves are available, but two use only one digit. That leaves 14 qualifying halves for each digit pair, or 45 × 14 = 630 strings among 100,000,000. The odds are about 1 in 158,730. This is the exact result for the detector rule, replacing the hub's old approximate 1 in 139,000.

How much is a Binary Radar note worth?

There are no publishable verified Binary Radar sold-price bands in the current value source. The condition cells remain blank rather than borrowing from Radar or Binary, because those categories have different evidence.

Review the fancy serial number value guide and use the star note lookup to identify a star note.

What raises or lowers a Binary Radar's value?

• A star note combination may attract interest, but no Binary Radar star-note band is recorded.
• A strobogrammatic arrangement such as 00888800 adds a rotator feature. It does not guarantee a price premium.
• A $2 denomination can have a different buyer pool and face value than a $1 note; compare like denominations.
• A true binary radar uses only 0 and 1. The narrower description may interest some buyers, but no separate sold range verifies an uplift.
• Condition, denomination, serial presentation and completed-sale evidence all matter.

Should you keep, sell, or grade it?

A two-digit palindrome is a distinctive combination, but this site has no Binary Radar value band. Compare completed sales for similar notes before assigning a price. Grading is sensible only if condition and likely proceeds can cover all related costs.

How to check your serial

First confirm the eight digits are unchanged when reversed, then count distinct digits. Two distinct digits means Binary Radar. Check for 0/1-only digits, a solid inner six, repeated blocks and rotational symmetry.

Use the fancy serial number checker and explore the related Radar guide, Binary guide, Super Radar guide and Radar Repeater guide pages.