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🔥 enhancing sdr performance: introducing flamingo am notch filter for broadcast am bandstop applications logo

🔥 Enhancing SDR Performance: Introducing Flamingo AM Notch Filter for Broadcast AM Bandstop Applications Review

9

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Very good

Revainrating 4 out of 5  
Rating 
4.1
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Description of 🔥 Enhancing SDR Performance: Introducing Flamingo AM Notch Filter for Broadcast AM Bandstop Applications

A high-quality, high-performance broadcast AM bandstop filter designed for software defined radio (SDR) applications. Includes free male SMA-male SMA barrel connector! Designed and manufactured by NooElec in North America. Impeccable quality and full 2-year warranty. Broadcast AM stations can be particularly problematic due to the high-powered transmitters used for broadcasting in some areas. These signals can overload the front end of an SDR, causing imaging and a number of other issues. As such, Flamingo AM makes a great companion to our Ham It Up series of HF upconverters (available separately on Amazon). Flamingo AM was designed to provide approximately 40dB attenuation for broadcast AM frequencies, while ensuring that adjacent bands are minimally affected. The -3dB rolloff of the filter is 350kHz and 1900kHz. The minuscule out-of-band insertion losses means the filter can stay in place for most any application--though we do recommend removing Flamingo AM from the signal chain when not receiving HF frequencies. Flamingo AM is a proper bandstop filter, so you are able to pass-through DC (bias-tee) power when required. DC current handling is 250mA (min), and the maximum recommended signal level is 18dBm (5Vp-p), so there is no issue using the filter for higher-power applications. The filter is fully EMI shielded, installed in a custom anodized aluminum enclosure for further protection and isolation. The front end is protected by an RF-rated ESD diode, which provides protection not just for your filter, but also the radio or SDR behind it.

Reviews

Global ratings 9
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    5
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    2
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    1
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Type of review

Revainrating 5 out of 5

Works great for NDB DXing

I used this with AirSpy SDR for NDB DXing. Rejecting the AM broadcast band without significantly attenuating signals below 500 kHz is not a good job. Good product.

Pros
  • Decent performance
Cons
  • There are new competitors

Revainrating 5 out of 5

AM filter works great!

I'm using this NoElec upconverted AM bandpass filter with my own GNURadio synchronous AM receiver. It removes the AM MW signals that caused intermodal signals in the shortwave bands. Nice good sturdy little block. I highly recommend this item!

Pros
  • cool product
Cons
  • a few little things

Revainrating 3 out of 5

Claimed performance is generous

The maximum attenuation I measured was 37 dB at 1171 kHz and the minimum stop-band attenuation was 22 dB at 905 kHz. This is indeed a 20dB stop band filter, not the 40dB they advertised. Still works, but not quite the wall that was promised. The insertion loss at 3MHz is 0.37dB, so the insertion loss is not bad.

Pros
  • Ease of use
Cons
  • No instructions

Revainrating 5 out of 5

Worked so well I bought a second one.

My SDRplay RSP2PRO was not usable for NDB beacon search. (209-520kHz) Local AM stations were killing me. Now my SDRplay can hear everything my ICOM IC7300 hears. I bought a second filter for the Malachite-DSP SDR radio. The Flamingo filter is housed in a beautiful aluminum housing. Robust construction and clear design. The insertion loss is about 1dB above and below the AM band. Great little filter.

Pros
  • Absolutely Amazing!
Cons
  • disappears

Revainrating 1 out of 5

Disappointed - unlabeled AM and FM I/O are identical (both ordered)

Disappointed - unlabeled AM and FM I/O are identical (both ordered). I've read good reviews and sdr-rtl user reviews but haven't come across it myself. Can't be sure if they are upside down or not as entrance/exit is not marked. I marked them myself. If I'm lucky or hear from a distributor I'll update this - until then.

Pros
  • Easy to read control panel
Cons
  • Not the best

Revainrating 4 out of 5

Does a good job for the price

This item won't completely remove the offended broadcast yay-em QRM from your receiver, but it will absolutely muffle the broadcast yay-em, just enough to take the load off dem reduce receiver front end and built-in filters. I use this in conjunction with "Uno" and now I can use the HF boost at each level without overloading the front end and I no longer hear/see the next bible station every 20kHz on each band. Good value for money, worth a few extra bucks for an aluminum chassis above the bare

Pros
  • Great for me
Cons
  • Nothing here

Revainrating 5 out of 5

A good inexpensive filter for AM broadcasting.

If you need an AM broadcast bandpass filter for either SDR purposes or for test and measurement... This is a good, affordable option. You can do better, but you will spend 5-10 times more money to get better performance. This is a good value product and a good package with a general style of connector to work with. What you need to know about this device: SMA connectors are a bit fragile. If you want to install any adapters on it to convert to Type N or TNC or install a DC unit, you might need…

Pros
  • Quality construction
Cons
  • Requires socket

Revainrating 4 out of 5

Disappointing - unmarked AM and FM in/out are identical (I ordered both)

. and FM are identical (I ordered both). I've read good reviews and user reviews about sdr-rtl, but haven't come across it myself. Thank goodness I noticed my AM and FM filters looked identical and labeled them myself. If I'm lucky or hear from a distributor I'll update this - until then.

Pros
  • The Flamingo AM was designed to provide approximately 40dB of attenuation for AM broadcast frequencies while ensuring minimal impact on adjacent bands. The -3 dB filter rolloff is 350 kHz and 1900 kHz. Minimal out-of-band insertion loss means the filter can stay in place for almost any application, although we recommend removing the Flamingo AM from the signal chain when RF frequencies are not being received.
Cons
  • boring packaging

Revainrating 5 out of 5

Does its job well for the price

This item doesn't completely remove the insult of broadcast yay-em QRM from your receiver, but it does deaden the broadcast yay-em enough to reduce the load on the receiver's external interface and built-in filters. I use this along with "Uno" and now I can use the HF boost at every level without overloading the front end and I no longer hear/see the next bible station every 20kHz on every band. Good value for money, worth a few extra bucks for an aluminum case above the 'bare bones' list.

Pros
  • High quality, high efficiency AM broadcast bandpass filter designed for software defined radio (SDR) applications. Includes a free SMA barrel connector - SMA male! Designed and manufactured by NooElec in North America. Impeccable quality and full 2 year warranty
Cons
  • Out of fashion