Transmitter arrived D-Lab with no output. Owner suspected loss of High voltage. I gave the transmitter and power supply a thorough inspection. A very nice clean piece, no signs of abuse or modifications. First I verified that the power supply was operating properly. Then I moved into the RF deck. Found many problems all related to loss of grid drive. These transmitters are fairly difficult to work on. Since there is dangerous voltages present, there are interlocks to contend with. Johnson did their best to protect the technician. Yes, I had to bypass safeties while troubleshooting. I used extreme caution, double checked every step I took. These are also extremely heavy transmitters, so a strong bench & carts are highly recommended.
HAM 1-30 Mhz Manual Antenna Tuner for HAM Radio QRP DIY Kits, Good Helper for Antenna Erection
$26.99 (as of December 2, 2024 15:18 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)This antenna tune kit comes with the standing wave directions.Using a T-type topology network, shortwave 1-30MHz. It can withstand the transmit power of 15W.The tuning range of approximately 30-300 ohms. The box has been punched, it is very convenien... read more
Authentic Genuine Nagoya NA-771 15.6-Inch Whip VHF/UHF (144/430Mhz) Antenna SMA-Female for BTECH and BaoFeng Radios
$20.98 (as of December 2, 2024 19:33 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Enhanced Signal Strength: The Nagoya NA-771 Dual Band Amateur Antenna offers a notable performance increase, with a gain of up to 3 dBi. This enhancement ensures a powerful boost to your radio's signal strength, providing clearer and more reliable co... read more
Balun Antenna DIY Kits for HAM Balun Balance Equipment Amateur DIY
$15.99 (as of December 2, 2024 15:04 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Balun Unun DIY kits , which can work in the short-wavelength range of 1-30MHz. 1:1 balun is suitable for bipolar DP antenna (inverted V positive V) antenna such as Yagi (40-100Ω). 1:4 balun for LOOP antenna and Winton antenna (200-400Ω). 1:9 balun is... read more
onelinkmore Ham Radio Upgraded Adapter SMA to UHF Antenna Adapter Kits PL259 SO239 UHF VHF Adapter for RF Applications/CB Radio/Handheld Ham Radio Antenna/Walkie Talkie/Amateur radios
$12.99 (as of December 3, 2024 00:07 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Salt Spray Environmental Test - 48 hrs Salt Spray Corrosion Resistance Plating for SMA to UHF RF Connectors,SMA to UHF RF Antenna Adapter Salt Spray Environmental Test SMA TO UHF - The SMA to UHF Antenna Connector Adapter for two way radios,It allows... read more
XRDS -RF UHF Connectors PL-259 Female to Female Adapter Connector UHF SO239 Female Connectors Pack of 2 (NOT for TV)
$9.99 (as of December 2, 2024 14:57 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)MATERIAL: PL-259 female to female connector.Body brass nickel plated.Pin brass gold plated.Teflon(PTFE) Insulator.With Dust Cap.Pin brass silver plated .Salt spray test for 96 hours. GREAT QULITY--UHF femaleto UHF female adapter connector great secur... read more
Wishouse Walkie Talkies for Adults Long Range-Handheld 2 Way Radios Rechargeable,Hiking Accessories Camping Gear Xmas Birthday Gift for Kids with Lamp,SOS Siren,NOAA Weather Alert,Easy to Use 4 Pack
20% OffUNLIMITED COMMUNICATION TIME — The rechargeable walkie talkie supports micro USB charging. You can charge them indoors, on the road, and even camping and hiking, and you do not need to pay for batteries, again and again, saving stress and money for y... read more
Greadio Portable Shortwave Radio with Bluetooth 5.0, Rechargeable AM FM Radio with Best Reception, TF/SD/USB Port,5W Loud Speaker,White Noise,Alarm Clock,LED Display,Earphone Jack,for Home,Office,Gift
19% Off[AM FM Radio With Best Reception] The latest version of our rechargeable radio can listen to 3 band stations: SW (4.75-21.95MHz), AM (520-1710KHz) and FM (87.5-108MHz). It has excellent signal reception capability and automatic search function. It ca... read more
Giatero 001 4000A Car Jump Starter, 12V Battery Jumper Starter Portable Jump Box(10.0L Gas/8.0L Diesel), Jump Start Battery Pack with 3 Modes Flashlight, Power Bank with USB Quick Charge & Type C Port
50% Off[Powerful Jump Starter]: Featuring a peak current of 4000A, Giatero car battery jump starter can safely revive 12V low-voltage and fully drained vehicle batteries within seconds, even in extreme temperatures. Giatero portable car jump starter support... read more
16000mah Emergency Weather Radio Hand Crank Radio Solar Radio Battery Powered Radio,Portable Am/Fm/Wb NOAA Radio with Wireless,Phone Charger,SOS,Compass,Flashlight,Reading Lamp,Survival Radio Green
$49.98 (as of December 2, 2024 19:19 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Multiple Charging Options: Our emergency weather radios come with four power options: hand crank, solar, USB. This ensures the radio works in any situation – whether it’s during a power outage, outdoor adventure, or natural disaster. And it can quick... read more
6000A Jump Starter, Battery Jumper Starter Portable,65W Fast Charge 12V Lithium Jump Box,Powerful Auto Battery Booster Pack with LCD Display,Flashlight,Storage Case (All Gas/12L Diesel Engine)
$129.99 (as of December 2, 2024 19:45 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)【Stable & Powerful Car Jump Starter】 The UTRAI 2025NEW Model JS-10 Battery Booster Pack is a robust tool with a peak current of 6000 amps, designed for car emergency starts that can be reliably started 12V vehicles especially heavy-duty ones (up to a... read more
Rechargeable Walkie Talkies Long Range, 4 Pack Walkie Talkies for Adults NOAA Wether Alert, 2 Way Radio 22 FRS Channel with 1800mAh Li-ion Battery Charger USB-C Cable VOX for Hiking Cruises Camping
$79.99 (as of December 2, 2024 19:39 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Long Range Walkie Talkies: These radios walkie talkies long range typically reach 0.5-1.5 miles in regular conditions, and up to 3 miles in ideal conditions. Actual range varies with terrain and weather. With 22 channels and 121 privacy codes, you ge... read more
Cobra RX380 Walkie Talkies - Rechargeable, 40 Preset Channels, Long Range 32-Mile Two-Way Radio Set (2-Pack), Black
8% OffCompact and Weather Resistant – Weather-resistant walkie talkie built with a strong shell so your radio can handle harsh conditions. With up to 32-mile range, this walkie talkie is compact to carry with you on your long journeys. 40 Preset Channels -... read more
AM FM Portable Radio Battery Operated Radio by 4X D Cell Batteries Or AC Power Transistor Radio with and Big Speaker, Standard Earphone Jack, High/Low Tone Mode, Large Knob
16% Off【CLASSICAL FM/AM ANALOGUE TUNER】 Frequency range: 87-108MHz FM, 520-1730kHz AM. Strong reception with this AM FM radio(such as NPR, classical music, baseball game, news station...). Long antenna in this transistor radio will strengthen the FM signal ... read more