What is a superheterodyne receiver?

2 Answers  

---

What Are the different filter types ?

4 Answers  

---

Describe an impedance matching circuit?

2 Answers  

---

I am working on Nortel Meridian 81C PBX,Passport,Symposium Can anyone plese tell me website name on which I can get more information about this equipments

0 Answers  

---

Describe VSWR?

12 Answers   Huawei,

---

What is noise figure?

3 Answers  

---

8=56 7=42 6=30 5=20 3=?

1 Answers  

---

Define Thermal impedance?

0 Answers   Vodafone,

---

What= is the 911 point?

0 Answers  

---

Describe circular polarization?

1 Answers  

---

What are mixers used for?

1 Answers  

---

what is sdh,pdh?how exactly the call get connected?

8 Answers   Ericsson, Reliance,

---