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Cobra MT 975–2 VP PMR446 Talkie Walkie Radio, Lot de 2 avec Chargeur et Batteries – Noir/Bleu Product Details Marque: COBRA Couleur: noir/bleu Dimensions du produit (L x l x h): 10 x 10 x 10 cm Moyenne des commentaires client: 3,2 sur 5 étoiles113 Evaluations clients Numéro du modèle de l'article: MT 975-2VP Les boutons-poussoirs du panneau avant vous donnent un accès facile à tous les 8 canaux PMR. 38 codes CTCSS et 83 codes DCS fournissant un total de 121 codes de confidentialité. Portée de 12 km selon les conditions et les terrains. Moniteur pour bébé avec une fonction radio qui permet de surveiller un bébé au moindre son détecté. La programmation de la surveillance de deux emplacements permet à l'utilisateur de surveiller deux lieux différents à la fois. The Cobra MT975 PMR446 is a top of the range two way radio which is ideal for many uses from family holidays to outdoor sports events. The Cobra MT975 PMR446 is a fantastic solution to your communication needs which is convenient and easy to use and enables you to stay in touch with other radio users upto 12km away from you with no licence fee or call charges. The Cobra MT975 PMR446 is packed full of useful features that make using this two way radio very easyThe Cobra MT975 PMR446 walkie talkie has a dual watch facility that enables the user to monitor two separate frequency channels for voice activity at the same time. Also with a VOX mode the Cobra MT975 PMR446 can be set to transmit as soon as it detects your voice, so you don?t even have to press any buttons. With a backlit LCD display it is easy to see information in dimly lit environments, and it also makes it easier to set the channel you want the radio to work on. In total the Cobra MT975 PMR446 two way radio has 8 separate channels with another 121 privacy frequencies on them. This means that in total there are hundreds of potential frequencies you can set the Cobra radios to work onFurther features of the Cobra MT975 PMR446 two way radios include: Vibralert provides a silent alert for incoming calls, baby monitor feature allows radio to monitor a baby whenever a sound is detected, channel memory allows the user to program upto 10 channel or channel and privacy code combinations, roger beep tone confirmation indicates the completion of your transmission and signals to others it's clear to talk, battery power saver feature, battery level meter displays remaining battery life in an easily viewable LCD icon and key lock provides security eliminating accidental channel changes

Neuf - Cobra MT 975–2 VP PMR446 Talkie Walkie Radio, Lot de 2 avec Chargeur et Batteries – Noir/Bleu Details du produit Marque: COBRA Couleur: noir/bleu Dimensions du produit (L x l x h): 10 x 10 x 10 cm Moyenne des commentaires client: 3,2 sur 5 étoiles116 Evaluations clients Numéro du modèle de l'article: MT 975-2VP Les boutons-poussoirs du panneau avant vous donnent un accès facile à tous les 8 canaux PMR. 38 codes CTCSS et 83 codes DCS fournissant un total de 121 codes de confidentialité. Portée de 12 km selon les conditions et les terrains. Moniteur pour bébé avec une fonction radio qui permet de surveiller un bébé au moindre son détecté. La programmation de la surveillance de deux emplacements permet à l'utilisateur de surveiller deux lieux différents à la fois. The Cobra MT975 PMR446 is a top of the range two way radio which is ideal for many uses from family holidays to outdoor sports events. The Cobra MT975 PMR446 is a fantastic solution to your communication needs which is convenient and easy to use and enables you to stay in touch with other radio users upto 12km away from you with no licence fee or call charges. The Cobra MT975 PMR446 is packed full of useful features that make using this two way radio very easyThe Cobra MT975 PMR446 walkie talkie has a dual watch facility that enables the user to monitor two separate frequency channels for voice activity at the same time. Also with a VOX mode the Cobra MT975 PMR446 can be set to transmit as soon as it detects your voice, so you don?t even have to press any buttons. With a backlit LCD display it is easy to see information in dimly lit environments, and it also makes it easier to set the channel you want the radio to work on. In total the Cobra MT975 PMR446 two way radio has 8 separate channels with another 121 privacy frequencies on them. This means that in total there are hundreds of potential frequencies you can set the Cobra radios to work onFurther features of the Cobra MT975 PMR446 two way radios include: Vibralert provides a silent alert for incoming calls, baby monitor feature allows radio to monitor a baby whenever a sound is detected, channel memory allows the user to program upto 10 channel or channel and privacy code combinations, roger beep tone confirmation indicates the completion of your transmission and signals to others it's clear to talk, battery power saver feature, battery level meter displays remaining battery life in an easily viewable LCD icon and key lock provides security eliminating accidental channel changes

Features: 100% brand new and high quality Specifications Size：25*52mm Diameter of end: 5mm Color：green + gold Operating frequency：0.1-2000MHz Amplifier gain： F=0.1MHz, gain=32dB F=500Mhz, gain=31dB      F=1000MHz, gain=29dB F=1500Mhz, gain=25dB F=2000MHz, gain=20dB Maximum power output：+10dBm （10mW） Power supply voltage: 6-12 VDC System impedance：50Ω Tips： 1.When working frequency is less than 600 MHZ，it get well gain flatness, can make it less than 1dB after careful adjustment. The lower frequency the higher gain consistency. 2.Amplifier working frequency of the lower limit is subject to input and output capacitor, the default value is 0.1 uF, working to 0.1 MHz. Increase the input and output capacitance appropriately,can extend the cut-off frequency, such as 10uF capacitance can work to 5KHz. 3.When the power supply voltage changes in 5-8 v, it can be used as a variable gain amplifier, gain increases with the increase of the power supply voltage, which suitable for radio frequency receive front-end circuit, using DA control power supply voltage, to control the gain of the amplifier, automatic gain control 4.When the power supply voltage in the 8-10 v, the low frequency end gain up to 30 db, at this time the amplifier has a low noise coefficient and good stability. 5.When the voltage is 12 v, reach maximum gain, the low frequency end gain of 32.5 dB Note: 1.Due to the hand measurement, there have size error about 1-3cm 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the photo and the actual item could be slightly different Package included 1x wide-band amplifier         Le 19-janv.-20 à 00:22:39 Paris, le vendeur a ajouté les informations suivantes:

Features: 100% brand new and high quality Specifications Size：25*52mm Diameter of end: 5mm Color：green + gold Operating frequency：0.1-2000MHz Amplifier gain： F=0.1MHz, gain=32dB F=500Mhz, gain=31dB      F=1000MHz, gain=29dB F=1500Mhz, gain=25dB F=2000MHz, gain=20dB Maximum power output：+10dBm （10mW） Power supply voltage: 6-12 VDC System impedance：50Ω Tips： 1.When working frequency is less than 600 MHZ，it get well gain flatness, can make it less than 1dB after careful adjustment. The lower frequency the higher gain consistency. 2.Amplifier working frequency of the lower limit is subject to input and output capacitor, the default value is 0.1 uF, working to 0.1 MHz. Increase the input and output capacitance appropriately,can extend the cut-off frequency, such as 10uF capacitance can work to 5KHz. 3.When the power supply voltage changes in 5-8 v, it can be used as a variable gain amplifier, gain increases with the increase of the power supply voltage, which suitable for radio frequency receive front-end circuit, using DA control power supply voltage, to control the gain of the amplifier, automatic gain control 4.When the power supply voltage in the 8-10 v, the low frequency end gain up to 30 db, at this time the amplifier has a low noise coefficient and good stability. 5.When the voltage is 12 v, reach maximum gain, the low frequency end gain of 32.5 dB Note: 1.Due to the hand measurement, there have size error about 1-3cm 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the photo and the actual item could be slightly different Package included 1x wide-band amplifier       Le 31-mars-20 à 14:26:44 Paris, le vendeur a ajouté les informations suivantes:

Features: 100% brand new and high quality Specifications Size：25*52mm Diameter of end: 5mm Color：green + gold Operating frequency：0.1-2000MHz Amplifier gain： F=0.1MHz, gain=32dB F=500Mhz, gain=31dB      F=1000MHz, gain=29dB F=1500Mhz, gain=25dB F=2000MHz, gain=20dB Maximum power output：+10dBm （10mW） Power supply voltage: 6-12 VDC System impedance：50Ω Tips： 1.When working frequency is less than 600 MHZ，it get well gain flatness, can make it less than 1dB after careful adjustment. The lower frequency the higher gain consistency. 2.Amplifier working frequency of the lower limit is subject to input and output capacitor, the default value is 0.1 uF, working to 0.1 MHz. Increase the input and output capacitance appropriately,can extend the cut-off frequency, such as 10uF capacitance can work to 5KHz. 3.When the power supply voltage changes in 5-8 v, it can be used as a variable gain amplifier, gain increases with the increase of the power supply voltage, which suitable for radio frequency receive front-end circuit, using DA control power supply voltage, to control the gain of the amplifier, automatic gain control 4.When the power supply voltage in the 8-10 v, the low frequency end gain up to 30 db, at this time the amplifier has a low noise coefficient and good stability. 5.When the voltage is 12 v, reach maximum gain, the low frequency end gain of 32.5 dB Note: 1.Due to the hand measurement, there have size error about 1-3cm 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the photo and the actual item could be slightly different Package included 1x wide-band amplifier         Le 03-avr.-20 à 17:16:08 Paris, le vendeur a ajouté les informations suivantes:

Features: 100% brand new and high quality Specifications Size：25*52mm Diameter of end: 5mm Color：green + gold Operating frequency：0.1-2000MHz Amplifier gain： F=0.1MHz, gain=32dB F=500Mhz, gain=31dB      F=1000MHz, gain=29dB F=1500Mhz, gain=25dB F=2000MHz, gain=20dB Maximum power output：+10dBm （10mW） Power supply voltage: 6-12 VDC System impedance：50Ω Tips： 1.When working frequency is less than 600 MHZ，it get well gain flatness, can make it less than 1dB after careful adjustment. The lower frequency the higher gain consistency. 2.Amplifier working frequency of the lower limit is subject to input and output capacitor, the default value is 0.1 uF, working to 0.1 MHz. Increase the input and output capacitance appropriately,can extend the cut-off frequency, such as 10uF capacitance can work to 5KHz. 3.When the power supply voltage changes in 5-8 v, it can be used as a variable gain amplifier, gain increases with the increase of the power supply voltage, which suitable for radio frequency receive front-end circuit, using DA control power supply voltage, to control the gain of the amplifier, automatic gain control 4.When the power supply voltage in the 8-10 v, the low frequency end gain up to 30 db, at this time the amplifier has a low noise coefficient and good stability. 5.When the voltage is 12 v, reach maximum gain, the low frequency end gain of 32.5 dB Note: 1.Due to the hand measurement, there have size error about 1-3cm 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the photo and the actual item could be slightly different Package included 1x wide-band amplifier       Le 16-avr.-20 à 09:59:54 Paris, le vendeur a ajouté les informations suivantes:

This is a NEAR unmodified ARC-5 Transmitter.  I used this over 60 years ago on 40 meter CW and made a few modifications to it at the time.  I have added a key jack on the lower left, a SO-238 connector for the antenna and a toggle switch on the left to activate the relay for transmit.  It is missing the top cover over the 1625's, the 1626 tube and I think a relay next to the antenna connector.  I do have two relays one of which I think is from this position that will be included.  Doesn't look like I made any noticeable wiring changes but must have changed the filaments from 24 to 12V though I don't see where I did it.  A few screws on the bottom plate are missing and has some paint chips but overall is much better than most that are available.