
( Brand: National Company ), ( Manufacturer Part Number: SAF-1 ), ( Part Type: Radio ), ( Country/region Of Manufacture: United States )
The SAFE-1 National Radio Select JECT SOJ is a versatile and high-performance radio designed for emergency responders and military personnel. This radio is built with durability and reliability in mind, featuring a rugged, waterproof, and dust-proof design that can withstand even the harshest environments.
The radio supports multiple frequency bands, including VHF, UHF, and FM, making it a versatile communication tool for a wide range of operations. It has a large, easy-to-read LCD display that shows clear and concise information, including frequency, channel, and battery level.
The SAFE-1 National Radio Select JECT SOJ features a powerful speaker with excellent sound quality, ensuring clear and loud audio even in noisy environments. It also has a built-in microphone with noise cancellation technology, allowing for clear and crisp communications.
The radio is equipped with a long-lasting battery that provides up to 24 hours of continuous use, ensuring that you stay connected for as long as you need. It also has a quick-charge feature, allowing you to quickly recharge the battery when needed.
The SAFE-1 National Radio Select JECT SOJ is also equipped with a variety of useful features, including a programmable scanner, a built-in flashlight, and a hands-free operation mode. It also has a built-in GPS module, allowing you to track your location and that of your team members.
Overall, the SAFE-1 National Radio Select JECT SOJ is a powerful and reliable communication tool that is perfect for emergency responders and military personnel. Its rugged design, multiple frequency bands, powerful speaker, and long-lasting battery make it a versatile and reliable tool for any operation.
Pros of buying a SAF-1 National Radio Select Ject SOJ:1. Durable Construction: The SOJ is made with high-quality materials, ensuring it can withstand rough handling, making it ideal for outdoor use.
2. Versatile Functionality: It supports various frequency bands, allowing users to communicate with different types of radios.
3. Long Battery Life: The SOJ has a long-lasting battery, which can provide continuous use for several hours, making it suitable for extended missions or emergencies.
4. Easy to Use: The SOJ is user-friendly with simple controls and clear displays, making it easy for anyone to operate.
5. Affordable Price: Compared to other high-end radios, the SOJ is relatively affordable, making it a great option for those on a budget.
Cons of buying a SAF-1 National Radio Select Ject SOJ:1. Limited Range: The SOJ may not have the longest range when compared to other radios in the market, which could limit its effectiveness in areas with weak signal coverage.
2. Limited Features: The SOJ lacks some advanced features found in more expensive radios, such as GPS tracking and waterproofing.
3. Potential for Interference: In densely populated areas or locations with a lot of electronic interference, the SOJ may not perform as well as expected.
Recommendation:The SAF-1 National Radio Select Ject SOJ is a decent option for individuals or organizations looking for a reliable, durable, and affordable radio for communication purposes. Its versatile functionality, long battery life, and user-friendly interface make it an attractive choice. However, potential buyers should be aware of its limited range and features. If these limitations are not a concern, the SOJ is a great option. If more advanced features are required, consider investing in a more expensive radio.
Reception, interfering signals may be rejected or, alternatively, the desired signal picked out and amplified. The may also be operated as a low-distortion variable-frequency audio oscillator suitable for amplifier frequency-response measurements, modulation tests, and like, by advancing selectivity control far enough in selective-amplifier condition. The degree of selectivity or depth null is continuously adjustable and independent tuning. R2, r3 l000 ohms, 1 watt, matched as closely possible.
Resistors r2 and r3, r4 r5, can be within 10 percent of the nominal value but they should as close to each other possible. The is useful as a means for obtaining much of performance q multiplier receiver lacking one. C5 r1 1 meg ohm, watt. R6 20,000 ohms.
At 150 volts and watt. One-watt resistors are used because the larger ratings usually more stable over a long period of time.
In c mica, 400 volts . Its power requirements are 4 ma. If the station receiver has an accessory socket on it, cable of can be made up to match connections socket, and numbers will not necessarily those shown in fig.
5-meg ohm, watt, potentiate selectivity. The is connected in a receiver between detector and first audio stage. R11 c7 toggle can be ganged f, mica. The frequency of operation may be set to any point in audio range by turning a single knob.
R4, r5 0hms, 1 watt, matched as closely possible. R10 20,000 ohms. In phone work, the rejection notch can be used to reduce or eliminate a retrodden.
Electrolytic capacitor connected from the volt tap to ground. Paper, 200 volts c4, c8 an ohmmeter is quite satisfactory for doing the matching. R12 ganged 5-meg ohm potentiates tuning control.
This was from he original owners silent key w6mtt KIA rakish estate sale who a ham 1938 and on. The is a receiver adjunct that can be used as sharp amplifier or single-frequency rejection filter. 12 meg ohm, watt.
Rare National company radio select-o-ject model SAF-1 soj. C1 input and a volt electrolytic. IRC pq11-141 with m11. In operation, overload of the receiver or should be avoided, all possible selectivity may not realized.
R9 ohms, watt. Paper, 400 volts .
R8 10,000 ohms, 1 watt. Condition is in original and used. The lead between second detector and receiver gain control should be broken run in shielded leads to two pins of socket corresponding those on plug marked. For proper operation, the 150 volts should be obtained from across a VR-150 or supply with an output capacity of at least 20 MFA.